CN100418129C

CN100418129C - Liquid crystal display device, liquid crystal display device signal processing device, program thereof, recording medium, and liquid crystal display control method

Info

Publication number: CN100418129C
Application number: CNB2004800405267A
Authority: CN
Inventors: 阿久津昌彦; 藤根俊之; 吉井隆司
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2004-01-16
Filing date: 2004-09-09
Publication date: 2008-09-10
Anticipated expiration: 2024-09-09
Also published as: ES2356246T3; CN1906656A

Abstract

When receiving an interlaced video signal, an I/P conversion section converts the interlaced video signal into a progressive video signal by any of two or more I/P conversion methods. Further, an emphasis conversion section subjects the progressive video signal to emphasis conversion. Here, a control CPU controls the degree of emphasis conversion performed by the emphasis conversion section so as to be changed in accordance with which kind of conversion method among the two or more conversion methods is used for the conversion. This makes it possible to subject video data supplied to a liquid crystal display panel to emphasis conversion with a degree corresponding to the conversion method. As a result of this, it is possible to implement a liquid crystal display device which can realize both improvement in response speed of a liquid crystal display device and improvement in quality of video image displayed on the liquid crystal display device.

Description

Liquid crystal indicator and signal processing apparatus thereof and liquid crystal display control method

Technical field

The video quality that response speed improves and this liquid crystal indicator shows that the present invention relates to liquid crystal indicator improves liquid crystal indicator that can both be accomplished, signal processing apparatus and program and the recording medium and the liquid crystal display control method of liquid crystal indicator.

Background technology

In recent years, maximization, the high-definition of liquid crystal indicator (Liquid Crystal Display:LCD) constantly make progress, as be used for the liquid crystal indicator of personal computer and word processor etc., mainly use rest image from the image that shows, spreading to as the liquid crystal indicator of TV (televisor) such, the field of using live image.The TV that the TV ratio of liquid crystal indicator possesses cathode-ray tube (CRT) (Cathode RayTube, hereinafter referred to as CRT) is thin, can be provided with occupied ground less, therefore spreading to general family.

But, liquid crystal indicator is compared with CRT etc., optic response speed is slow, according to the migration gray scale, sometimes in corresponding with conventional frame frequency (60Hz) the rewriting time (16.7msec), do not responded, thereby for example carry out method of driving after the middle employing of patent documentation 1 (the flat 4-365094 communique of Japan's patent disclosure, on Dec 17th, the 1992) modulated drive signal, so that increase the weight of the gray scale migration of last time to this.

For example, the migration of gray scale from last frame FR (k-1) to this frame FR (k) is during for the driving of increasing property, and (k) voltage of Biao Shi voltage level moves so that increase the weight of last time to this gray scale for i, j specifically pixel to be applied the video data D that level is higher than this frame FR (k).

Its result is when gray scale is moved, with the video data D (i that applied this frame FR (k) originally, j, k) voltage of Biao Shi voltage level is compared, and the intensity level of pixel sharply increases, (i, j is near intensity level k) to arrive the video data D that adapts to described frame FR (k) in the short time.Thereby, even under the slow-footed situation of liquid crystal response, also can improve the response speed of liquid crystal indicator.

In the present specification, following LCD drive method is called overshoot (OS) to be driven, that is: described in patent documentation 1, LCD panel is supplied with the LCD drive method that is higher than (upper punch) or is lower than the present frame input image data corresponding gray scale voltage that (dashing down) be predetermined according to the combination of the input image data of input image data before 1 frame and present frame.

Known response speed of liquid crystal is because of the environment temperature conversion, especially at low temperatures, response speed is slack-off, thus for example patent documentation 2 (the flat 4-318516 communique of Japan's patent disclosure, open day: on November 10th, 1992) temperature of giving chapter and verse increased the weight of the liquid crystal driving device of gray scale migration.

Moreover, patent documentation 3 (the flat 6-165087 communique of Japan's patent disclosure for example, open day: on June 10th, 1994) composition of Jie Shiing was according to picture material, the user preferences adjustment produces the gain of the response speed correcting circuit of the correction voltage bigger than vision signal variable quantity, to realize eliminating MUSE (Multiplesub-Nyquist Sampling Encoding: the noise of rest image part in the signal how secondary Nyquist sampling coding), eliminate flicker, vertical exploring degree improves, the partially stabilized demonstration of live image, to pan-shot, pitching is taken, the fidelity of carry over and baseband signal shows at a high speed, thereby realizes watching convenient and the high liquid crystal indicator of picture quality.

In liquid crystal indicator, when driving each pixel according to interlaced video signal, the most employing is transformed into the driving method of whole pixels being lined by line scan and driving behind the progressive-scan video signal with interlace signal.

Below, together with Figure 31 to Figure 34, describe in detail according to the environment for use temperature and carry out the situation of overshoot driving with the optical response of compensation LCD panel.Here, Figure 31 is the block diagram that the key component composition of existing liquid crystal indicator is shown, Figure 32 is the functional block diagram that the summary composition of control CPU is shown, Figure 33 is the key diagram that the relation of temperature and reference table memory in the device is shown, and Figure 34 is the key diagram of relation that the response of voltage that liquid crystal is applied and liquid crystal is shown.

Among Figure 31,501a～501d is the OS table storer (ROM) of the OS parameter (increasing the weight of transformation parameter) of the gray scale migration that temperature is deposited the 1 frame period front and back that meet input image data accordingly in installing with each, the 515th, the frame memory (FM) of input image data of storage 1 frame share, 514H are that the M-1 frame input image data (past data) that the input image data (current data) of the M frame of present demonstration and frame memory 515 are preserved is compared and some from OS table storer (ROM) 501a～501d read the OS parameter corresponding with this comparative result (gray scale migration) and determined the required transformation component that increases the weight of that increases the weight of transform data (writing gradation data) of M two field picture demonstration according to this OS parameter.

The 516th, basis is from the transformation parameter that increases the weight of that increases the weight of transformation component 514H, to the gate drivers 518 of LCD panel 517 and the liquid-crystal controller of source electrode driver 519 output liquid crystal driving signals, the 520th, be used to detect the temperature sensor of the temperature in the relative assembly, 512H is control CPU, CPU is according to temperature in the temperature sensor 520 detected devices in this control, select and some with reference among OS table storer (ROM) 501a～502d, be used for switching the switch-over control signal that view data increases the weight of the OS parameter that conversion uses increasing the weight of transformation component 514H output.

Here, OS parameter L EVEL1～LEVEL4 that OS table storer (ROM) 501a～502d deposits is respectively that (T1＜T2＜T3＜T4) the optical response measured value of environment LCD panel 517 is down obtained, and respectively increases the weight of the relation of conversion degree formation LEVEL1＞LEVEL2＞LEVEL3＞LEVEL4 from reference temperature T1, T2, T3, T4.

Shown in figure 32, control CPU512H have with the temperature detection data of temperature sensor 520 and the defined threshold Th1, the Th2 that are predetermined, Th3 relatively threshold value judegment part 512a and select some among OS table storer (ROM) 501a～501d according to the comparative result of this threshold value judegment part 512a to produce and the control signal efferent 512b of the switching signal that OS parameter L EVEL1～LEVEL4 uses is switched in output.

Here, for example as shown in Figure 33, temperature is less than or equal to switching threshold temperature T h1 (=15 ℃) in the temperature sensor 520 detected devices, then controls the CPU512H indication and increases the weight of transformation component 514H, makes its selection and shows storer (ROM) 501a with reference to OS.Therefore, increase the weight of the OS parameter L EVEL1 that transformation component 514H uses OS table storer (ROM) 501a to deposit, carry out the conversion that increases the weight of of input image data.

In addition, if temperature is higher than switching threshold temperature T h1 (=15 ℃) and is less than or equal to switching threshold temperature T h2 (=25 ℃) in the temperature sensor 520 detected devices, then control CPU512H and indicate, make its selection and show storer 501b with reference to OS to increasing the weight of transformation component 514H.Therefore, increase the weight of the OS parameter L EVEL2 that transformation component 514H uses OS table storer (ROM) 501b to deposit, carry out the conversion that increases the weight of of input image data.

And then, temperature is higher than switching threshold temperature T h2 (=25 ℃) and is less than or equal to switching threshold temperature T h3 (=35 ℃) in the temperature sensor 520 detected devices, then control CPUH and indicate, make its selection and show storer 501c with reference to OS to increasing the weight of transformation component 514H.Therefore, increase the weight of the OS parameter L EVEL3 that transformation component 514H uses OS table storer (ROM) 501c to deposit, carry out the conversion that increases the weight of of input image data.

Again, temperature is higher than switching threshold temperature T h3 (=35 ℃) in the temperature sensor 520 detected devices, then controls CPUH and indicates increasing the weight of transformation component 514H, makes its selection and shows storer 501d with reference to OS.Therefore, increase the weight of the OS parameter L EVEL4 that transformation component 514H uses OS table storer (ROM) 501d to deposit, carry out the conversion that increases the weight of of input image data.

In LCD panel, it is long generally to change to time of another middle gray from certain middle gray, and the tracing property extreme difference of the input during to low temperature, response time increases, thereby can not in 1 frame period (for example being 16.7msec under the situation of lining by line scan of 60Hz), show middle gray, there is the problem that not only produces afterimage but also can not accurately show middle gray, but use the past gray scale migratory direction of above-mentioned overshoot driving circuit that the gray level of input image data is increased the weight of conversion, make through 1 predetermined frame and show that after date LCD panel 517 reaches the target gray scale intensities of input image data regulation, thereby as shown in figure 34, can be in short time (in 1 frame period) display-object middle gray.

Yet under the situation of an optional majority transform method, above-mentioned patent documentation 1～3 described composition produces the problem that is difficult to suppress the reduction of video quality when constituting display device and carrying out the conversion of interlacing-line by line.

Specifically, interlacing-there are various transform methods in transform method line by line, but the suitable S/N ratio and the video content of the interlaced video signal of importing of not only being subjected to of which transform method arranged, and arranged by user's hobby, thereby do not have total transform method for the best under whole situations.

For example, the transform method of holding motion detection, movement compensation etc. between opposite field and carrying out interpolation between the field, under the fully big condition of the S/N ratio of interlaced video signal, thereby the method that is transformed into progressive-scan video signal as the vision signal that row multiplier etc. only duplicates like that the horizontal line pixel of certain of formation is compared, and can improve the quality of video; Otherwise when S/N compared less than the scope of imagination, more remarkable than described clone method noise, often the video quality reduced.

On the other hand, the row multiplier like that only data conversion in the use becomes under the situation of method of progressive-scan video signal, because space exploring degree is low, noise is not remarkable, but the problem that the brightness that specifically exists in the image outline portion etc. each to be easy to generate non-hope changes.

Yet, in above-mentioned patent documentation 1～3 described composition, can not suitably increase the weight of the gray scale migration, thereby increase the weight of the brightness variation of above-mentioned non-hope according to the characteristic of interlacing-conversion line by line, cause the flicker of rest image profile portion etc. remarkable, the quality that shows video is obviously descended.

Specifically, for example as shown in Figure 35, interlacing-(I/P) conversion process is carried out data interpolation to the even field and the odd field of interlace signal respectively line by line, and as shown in figure 36, each even field and odd field is used as the view data of 1 frame share respectively.

Thus, change to the simulation progressive-scan video signal of 60 frame/seconds, thereby can show the vision signal of interlace mode with progressive scan mode from 30 frame/seconds (60 s'/second) interlaced video signal (during the NTSC broadcast system).

Yet, as the conversion process of this interlacing-line by line, when for example only carrying out interpolation in the data in the even field of interlace mode and odd field field separately, shown in the dotted line of Figure 36, originally static outline position changes at each, produce flicker noise (false signal), or oblique line presents zigzag fluctuating (bright dark ladder is poor).

Therefore, suppose to utilize above-mentioned overshoot to drive to carry out the conversion that increases the weight of of view data with the identical degree that increases the weight of when S/N is carried out the conversion process of activity self-adaptation interlacing-line by line than fully high interlace signal or during the input progressive signal, the non-image of wishing to rise and fall flicker noise (false signal) and oblique line (bright dark ladder is poor) being increased the weight of that shows then that the conversion process of this interlacing-line by line produces, existence causes the problem of the degradation of display image.

Summary of the invention

The present invention finishes in view of the above problems, and its purpose is to realize that the response speed of liquid crystal indicator improves and the video quality of described liquid crystal indicator demonstration improves the liquid crystal indicator that both can both be accomplished, signal processing apparatus and program and the recording medium and the liquid crystal display control method of liquid crystal indicator.

In order to solve above-mentioned problem, liquid crystal indicator of the present invention, by video data the video data of supplying with LCD panel is increased the weight of conversion according to video data before at least 1 vertical cycle and current vertical cycle, compensate the optical response of described LCD panel, wherein, have inputting video data when being interlace signal,, this interlace signal is transformed into the converter unit of the interlacing of progressive signal-line by line according to the some methods in a plurality of transform methods; And the conversion that increases the weight of of carrying out current vertical cycle video data, so that increase the weight of before and after at least 1 vertical cycle of described progressive signal the gray scale migration increase the weight of converter unit, according to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts, change and control increases the weight of the conversion degree to described video data.

Even different transform methods is equivalent to import the transform method that identical interlaced video signal is also exported different mutually progressive-scan video signals mutually, even for example adopt the situation or the algorithm of the different algorithm of signal identical, parameter and also different situations such as filter characteristic.

For example, as mutual different transform method, can enumerate: (1) activity self-adaptation interlacing-conversion line by line; (2) interlacing-conversion line by line of only handling (the whole pixels that constitute 1 picture are carried out intrafield interpolation to be handled) based on intrafield interpolation.

Again, vertical cycle is equivalent to 1 frame (1 scene) cycle, for example writes and during whole video of 1 frame (1 scene) share of the data of scan video signal, 1 vertical cycle is consistent with 1 vertical display cycle in 1 frame period of spreading all over described data.Otherwise under the situation based on black analog pulse driving of inserting, 1 frame (1 scene) has video and shows phase and black demonstration during the phase in the cycle, and described 1 vertical cycle was longer than for 1 vertical display cycle.And, carry out the conversion that increases the weight of of described vision signal with pixel unit.

Again, the vision signal before at least 1 vertical cycle and the vision signal of current vertical cycle are the pixel datas that presents the pixel data of the gray scale intensities before at least 1 vertical cycle when certain pixel is repeated to import the signal of expression brightness and changes pixel status according to this input respectively and present the gray scale intensities of current vertical cycle, and when each pixel of liquid crystal indicator is subjected to rewriting by 1 vertical cycle, the data of supplying with corresponding to each vertical cycle when lining by line scan (60Hz be 16.7msec).

According to above-mentioned composition, then interlacing-converter unit can be transformed into progressive-scan video signal with interlaced video signal with a plurality of methods line by line.Therefore, can be with adapting to the proper transformation method than, user preferences or the picture quality that requires from the type of the vision signal of video signal source and S/N, be transformed into progressive-scan video signal (progressive scanning conversion), can also make the vision signal after the conversion be shown to liquid crystal indicator.

Again, in the above-mentioned composition, increase the weight of the video data of converter unit after and do to increase the weight of conversion described conversion, make for example described LCD panel form the transmissivity of described video data regulation at the appointed time, and carry out current vertical cycle video data increase the weight of conversion, the gray scale migration of at least 1 vertical cycle front and back of described progressive signal is increased the weight of, thereby compensate the optical response of described LCD panel.

Moreover, in the above-mentioned composition, according to the transform method of the converter unit of described interlacing-line by line change and control to the degree that increases the weight of of described video data, thereby described interlacing-when converter unit produces progressive-scan video signal with arbitrary transform method line by line, increase the weight of converter unit and can do to increase the weight of conversion to vision signal with suitable degree.

Its result, the response speed of described liquid crystal indicator improve and the raising of the video quality that described liquid crystal indicator shows can both be accomplished.

Again, except that above-mentioned composition, also can have and deposit by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle, the described converter unit that increases the weight of has with the described transformation parameter that increases the weight of, and described video data is implemented the operational part that increases the weight of computing; And, the described output data that increases the weight of computing be multiply by the multiplier of different coefficients according to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts.

In the above-mentioned composition, that deposits in the operational part use table storer increases the weight of transformation parameter, described video data is implemented increased the weight of computing, also this output data that increases the weight of computing is taken advantage of the coefficient that meets transform method simultaneously.Thereby, can use the less circuit of scale, precision increases the weight of degree than the highland change.

Moreover, except that above-mentioned composition, also can have reference when depositing with the 1st transform method conversion inputting video data, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle; And when depositing with the 2nd transform method conversion inputting video data reference, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle, the described converter unit that increases the weight of has use the described transformation parameter of reading from described table storer according to the transform method that adopts that increases the weight of in the conversion process of the converter unit of described interlacing-line by line, the data after the described conversion is implemented the operational part that increases the weight of computing.

During this is formed, can change the table storer that increases the weight of the converter unit reference according to each transform method, even thereby be fit to each not increasing the weight of under the situation not really relevant between the transformation parameter of transform method, also can increase the weight of conversion to described video data with the conversion degree that increases the weight of that is fit to each transform method.

Except that above-mentioned composition, also can also have the temperature detecting unit that detects temperature in the device, the described testing result that increases the weight of converter unit according to temperature in the described device changes described video data is increased the weight of the conversion degree.

This not only changes transform method in forming, and increases the weight of the conversion degree according to temperature change in the device, thus suitable when increasing the weight of the conversion degree and changing because of environment for use, also can increase the weight of conversion with suitable degree.As a result, with ignore device in temperature ground keep increasing the weight of the conversion degree and compare when constant, the quality of the video that is shown to liquid crystal indicator is improved.

Moreover, except that above-mentioned composition, also can have and deposit by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle, the described converter unit that increases the weight of has with the described transformation parameter that increases the weight of, and described video data is implemented the operational part that increases the weight of computing; And, the described output data that increases the weight of computing be multiply by the multiplier of different coefficients according to the testing result of temperature in transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts and the described device.

In the above-mentioned composition, increase the weight of converter unit the output data because of the operational part of table storer decision be multiply by the coefficient that meets temperature detection result in transform method and the device, make and increase the weight of degree and change.Therefore, can be between the mutually different situation of the combination of temperature detection result in transform method and the device shared table storer, the less liquid crystal indicator of realization circuit scale.

Except that above-mentioned composition, also can have reference when depositing with the 1st transform method conversion inputting video data, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle; And when depositing with the 2nd transform method conversion inputting video data reference, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle, and the described converter unit that increases the weight of has use and carries out the described transformation parameter that increases the weight of that the described table storer of conversion is read from meeting according to the some methods described a plurality of transform methods, the data after the described conversion is implemented the operational part that increases the weight of computing; And, the described output data that increases the weight of computing be multiply by the multiplier of different coefficients according to temperature detection result in the described device.

In the above-mentioned composition, increase the weight of converter unit and change and increase the weight of degree by multiply by the multiplication coefficient of temperature detection result in the equality circuit with the output data that increases the weight of computing that increases the weight of transformation parameter decision of reading, and making from the table storer that meets transform method.Therefore, can be between each temperature shared table storer.Again owing to,, increase the weight of converter unit and also can do increase the weight of conversion with the degree that is fit to respectively even be fit under the situation that increases the weight of not really to be correlated with between the transformation parameter of transform method according to transform method switching table storer.

Therefore, the composition that the table storer is set with the combination of each temperature and transform method is compared, and can dwindle circuit scale, and with the combination of each temperature and transform method between the composition of shared table storer compare, can do increase the weight of conversion with suitable degree.As a result, can realize that circuit scale dwindles the liquid crystal indicator of obtaining equilibrium with the quality raising that is shown to the video of liquid crystal indicator.

Except that above-mentioned composition, also can have reference when depositing, corresponding with each of temperature in the multiple arrangement with the 1st transform method conversion inputting video data, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle; And when depositing with the 2nd transform method conversion inputting video data reference, with multiple arrangement in temperature some corresponding, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle, the described converter unit that increases the weight of has according to temperature detection result in transform method that adopts in the conversion process of the converter unit of described interlacing-line by line and the described device and uses the described transformation parameter of reading from described table storer that increases the weight of, and the video data after the described conversion is implemented the operational part that increases the weight of computing.

In the above-mentioned composition, owing to read the table storer of using when the operational part execution increases the weight of computing that increases the weight of transformation parameter according to temperature change in transform method and the device, even be fit to increasing the weight of under the situation not really relevant between the transformation parameter of transform method and temperature, increase the weight of converter unit and also can be respectively do increase the weight of conversion, the quality of video of the liquid crystal indicator of demonstration can be improved with suitable degree.

Again, except that above-mentioned composition, also can have deposit with multiple arrangement in each video data corresponding, current vertical cycle of temperature and the table storer that increases the weight of transformation parameter of the vision signal appointment before 1 vertical cycle, the described converter unit that increases the weight of has comparative result according to temperature detection result in the switching temperature of the transform method decision of adopting and the described device in the conversion process of the converter unit of described interlacing-line by line, with the described transformation parameter of reading from described table storer that increases the weight of, the video data after the described conversion is implemented the operational part that increases the weight of computing.

Moreover, except that above-mentioned composition, also can have temperature data as temperature detection result in the described device, implement the operational part of regulation computing of each decision of described a plurality of methods; To implementing the comparing section that temperature data that obtains after the described computing and the defined threshold temperature data that is predetermined compare; And, produce to switch and also control the described control signal efferent that increases the weight of the switch-over control signal of transformation parameter according to the result of described comparison.

Except that above-mentioned composition, also can have the comparing section that the defined threshold temperature data as each decision of the temperature data of temperature detection result in the described device and described a plurality of transform methods is compared again; And, produce to switch and also control the described control signal efferent that increases the weight of the switch-over control signal of transformation parameter according to the result of described comparison.

During these are formed, owing to change the temperature of switching table storer according to transform method, can be no matter at least a portion of shared described table storer and described multiplier is not set between the different transform method of signal increases the weight of the conversion degree and change.As a result, can when being set, multiplier reduce circuit scale.

In order to solve above-mentioned problem, the signal processing apparatus of liquid crystal indicator of the present invention has the converter unit that interlaced video signal is transformed into progressive-scan video signal; And current vertical cycle vision signal proofreaied and correct, so that increase the weight of the correcting unit that the gray scale of at least 1 vertical cycle front and back of described progressive-scan video signal is moved, wherein, described converter unit can carry out conversion with a plurality of transform methods, according to the transform method of described converter unit, the gray scale migration of changing described correcting unit increases the weight of degree.

According to above-mentioned composition, then converter unit can be transformed into progressive-scan video signal with interlaced video signal with a plurality of methods.Therefore, can be with adapting to the proper transformation method than, user preferences or the picture quality that requires from the type of the vision signal of video signal source and S/N, be transformed into progressive-scan video signal (progressive scanning conversion), can also make the vision signal after the conversion be shown to liquid crystal indicator.

Again, in the above-mentioned composition, correcting unit is proofreaied and correct the vision signal of current vertical cycle, and the gray scale migration of at least 1 vertical cycle front and back of progressive-scan video signal is increased the weight of, thereby can compensate the optical response of described LCD panel.

Moreover, in the above-mentioned composition, the gray scale migration that changes described correcting unit according to the transform method of described converter unit increases the weight of degree, thereby described converter unit is when producing progressive-scan video signal with arbitrary transform method, and correcting unit can be able to the correction of vision signal suitable degree and increase the weight of the gray scale migration.

Again, except that above-mentioned composition, the 1st method that described a plurality of transform method is comprised carry out motion detection between the field and the 2nd transform method that carries out conversion by certain step no matter field-free activity arranged, when described converter unit utilized described the 2nd transform method to carry out conversion, it is little that Billy changes described correcting unit when carrying out conversion with described the 1st transform method gray scale migration increases the weight of degree.

Moreover, except that above-mentioned composition, also can make described a plurality of transform method comprise the 1st method of the movable line translation of going forward side by side between the prediction field and the 2nd transform method that carries out conversion by certain step no matter field-free activity arranged, when described converter unit utilized described the 2nd transform method to carry out conversion, it is little that Billy changes described correcting unit when carrying out conversion with described the 1st transform method gray scale migration increases the weight of degree.

Again, except that above-mentioned composition, described a plurality of transform method is comprised to carry out the 1st method of conversion with reference to other the mode of vision signal and not carry out the 2nd transform method of conversion with reference to other mode, when described converter unit utilized described the 2nd transform method to carry out conversion, it is little that Billy changes described correcting unit when carrying out conversion with described the 1st transform method gray scale migration increases the weight of degree.

Moreover also can make described the 2nd transform method is to be averaged or to be with weightedly by the vision signal in duplicating certain or to all vision signals in certain to be averaged, and relevant video signal conversion is become the method for progressive-scan video signal.

Here, described the 1st transform method is made progressive scanning conversion with reference to other, thereby compares with the 2nd transform method, if the S/N of vision signal then can produce the higher progressive-scan video signal of quality than fully big.Therefore, be not easy to produce and result from that the pixel of progressive scanning conversion is non-wishes that brightness changes.But, when S/N compares less than predetermined value, be easy to generate the significant progressive-scan video signal of noise.

On the other hand, the inevitable space of the 2nd transform method exploring degree reduces, thereby S/N hour, compares when selecting the 1st transform method, sometimes can produce the inapparent progressive-scan video signal of noise, but especially locate to be easy to generate the luminance transformation (flicker) of non-hope in profile portion of rest image etc.

Under the situation of arbitrary transform method, all the progressive-scan video signal that converter unit is produced by correcting unit is proofreaied and correct the gray scale migration, but the brightness of the non-hope that over correction the 2nd transform method produces changes, and then for example the flicker of the profile portion of rest image is remarkable, and the quality of video is descended.

At this point, in the above-mentioned composition, when carrying out progressive scanning conversion with the 2nd transform method, it is little that the gray scale migration of change correcting unit increases the weight of degree, even thereby image outline portion etc. locates to produce the luminance transformation (flicker) of non-hope, the 2nd method also not too increases the weight of this brightness and changes, and can suppress the video quality and reduce.

Moreover, except that above-mentioned composition, also can make described correcting unit that the table storer that increases the weight of transformation parameter of the vision signal appointment of preceding vision signal of described at least 1 vertical cycle of a plurality of storages and current vertical cycle is set, switch the table storer of described correcting unit reference by transform method, change described gray scale migration and increase the weight of degree according to described converter unit.Increase the weight of transformation parameter and be to obtain the data that the vision signal after the correction is used, for example can enumerate after the correction vision signal (gray-scale value) itself and to the decrement that adds of the vision signal before proofreading and correct.Improve the optical response of actual measurement liquid crystal indicator, obtain this parameter.

During this is formed, can be according to the table storer of each transform method change correcting unit reference, even thereby be fit under the situation that increases the weight of not really to be correlated with between the transformation parameter of each transform method, correction means also can increase the weight of the gray scale migration with the degree that is fit to each transform method, thereby can improve the quality of the video that is shown to liquid crystal indicator.

Except that above-mentioned composition, also can make described correcting unit that the table storer that increases the weight of transformation parameter of the vision signal appointment of preceding vision signal of described at least 1 vertical cycle of storage and current vertical cycle is set; And according to described gray scale migration increase the weight of degree adjust with reference to described table storer decision, to the adjustment unit of the correcting value of the vision signal of current vertical cycle.

During this was formed, the roger that adjustment unit moves the combination regulation that increases the weight of degree or transform method and temperature according to for example gray scale of transform method regulation increased the weight of the correcting value that degree is adjusted the decision of reference table storer.

Therefore, for example different mutually transform methods or different mutually gray scales such as described combination migrations increase the weight of the shared table storer of energy between the different mutually situation of degree, thereby can realize the liquid crystal indicator that circuit scale is less.

Usually, between above-mentioned each situation, increase the weight of transformation parameter under many situations and have to a certain degree relevant, thereby the circuit scale of described adjustment unit is less increased, just can accurately gray scale be moved and increase the weight of degree set and become suitable degree.Therefore, the quality that can suppress to be shown to the video of liquid crystal indicator reduces, and circuit scale is increased.

Moreover except that above-mentioned composition, also can make the transform method of above-mentioned converter unit, the gray scale migration of changing described correcting unit according to temperature in the device increases the weight of degree again.During this is formed, owing to not only increase the weight of degree,, also can increase the weight of the gray scale migration with suitable degree even the migration of suitable gray scale increases the weight of degree when changing because of the environment for use temperature according to transform method but also according to temperature change gray scale migration in the device.As a result, the mass ratio of the video that is shown to liquid crystal indicator is ignored in the device when temperature increases the weight of the gray scale migration degree and keeps constant improves.

Again, except that above-mentioned composition, also can make described correcting unit that the table storer that increases the weight of transformation parameter of the vision signal appointment of preceding vision signal of described at least 1 vertical cycle of a plurality of storages and current vertical cycle is set, and switch the table storer of described correcting unit reference by transform method and the interior temperature of device, change described gray scale migration and increase the weight of degree according to described converter unit.

During this is formed, can be according to the table storer of temperature change correcting unit reference in transform method and the device, even thereby be fit under the situation that increases the weight of not really to be correlated with between the transformation parameter of each transform method and temperature, correction means also can increase the weight of the gray scale migration with suitable degree respectively, thereby improves the quality of the video that is shown to liquid crystal indicator.

Moreover, except that above-mentioned composition, also can make described correcting unit that the table storer that increases the weight of transformation parameter of the vision signal appointment of preceding vision signal of described at least 1 vertical cycle of a plurality of storages and current vertical cycle is set, described correcting unit also has the adjustment unit of adjustment to the correcting value of the current vertical cycle vision signal of any decision in the described table storer of reference, and the adjustment degree by making described adjustment unit is with temperature change in the device, and switch the table storer of described correcting unit reference according to the transform method of described converter unit simultaneously, change described gray scale migration and increase the weight of degree.

In the above-mentioned composition, adjust the correcting value of reference table storer decision according to temperature in the device by adjustment unit, thus can shared decision between each temperature the table storer of reference during to the correcting value of current vertical cycle vision signal.Again because according to transform method switching table storer, even increasing the weight of between the transformation parameter of suitable transform method is not really relevant, correcting unit also can be proofreaied and correct the gray scale migration with suitable degree respectively.

Moreover, except that above-mentioned composition, also can make described correcting unit that the table storer that increases the weight of transformation parameter of the vision signal appointment of preceding vision signal of described at least 1 vertical cycle of a plurality of storages and current vertical cycle is set, at least a portion of shared described a plurality of table storeies between a plurality of transform methods of described converter unit, and by switching the table storer of described correcting unit reference according to temperature in the device, and switch the described temperature of respectively showing storer according to the transform method change of described converter unit simultaneously, change described gray scale migration and increase the weight of degree.

In the above-mentioned composition, because according to the temperature of transform method change switching table storer, can be no matter at least a portion of shared described a plurality of table storeies and adjustment unit is not set between the different mutually transform methods, and the migration of change gray scale increases the weight of degree.As a result, can when being set, adjustment unit reduce circuit scale.

As an example, temperature is high more, suitable gray scale migration increases the weight of under the more little situation of degree, get little transform method by the gray scale migration being increased the weight of degree set, the lower time point of temperature switches to the table storer corresponding with the higher temperature scope in device, when on identical temperature, comparing, can increase the weight of the gray scale migration that degree set becomes to be equal to or less than the transform method of the method that should set greatlyyer and increase the weight of degree gray scale migration being increased the weight of gray scale migration that degree set gets less transform method.

Can be between mutually different transform methods shared all described a plurality of table storeies, but the requirement that reduces circuit scale is lower, under the video quality requirements condition with higher to the liquid crystal indicator that shows, preferably switch the described storer of respectively showing, make that only carrying out conversion at described converter unit with the transform method of stipulating is able to reference to the part in described a plurality of table storeies.

During this is formed, because the part of the shared table storer corresponding with each temperature between the different mutually transform methods can make circuit scale dwindle than not shared composition.On the other hand, during shared whole table storer, can not suitably increase the weight of under the situation of the such particular transform method of gray scale migration in certain temperature even exist at least, also there is the only table storer of reference when described converter unit carries out conversion with the regulation transform method in the table storer, thereby when carrying out conversion, also can suitably proofread and correct the gray scale migration with this particular transform method.As a result, can realize that circuit scale dwindles the liquid crystal indicator of obtaining equilibrium with the video quality raising that is shown to liquid crystal indicator.

Moreover, the signal processing apparatus of liquid crystal indicator involved in the present invention, has the converter unit that interlaced video signal is transformed into progressive-scan video signal, and relevant progressive-scan video signal is modulated, so that increase the weight of the gray scale migration of each pixel of liquid crystal indicator, described converter unit can carry out conversion with a plurality of transform methods, and according to the transform method of described converter unit, the gray scale migration of changing described correcting unit increases the weight of degree.

According to above-mentioned composition, then increase the weight of degree owing to change the gray scale migration according to the transform method of interlacing-conversion line by line, when producing progressive-scan video signal, can increase the weight of the gray scale migration with suitable degree with arbitrary transform method.Therefore, the raising of the video quality of raising of the response speed of described liquid crystal indicator and the demonstration of described liquid crystal indicator can both be accomplished.

Again, in order to solve above-mentioned problem, liquid crystal indicator of the present invention has the arbitrary signal processing apparatus in the signal processing apparatus of above-mentioned each liquid crystal indicator of forming.Therefore, identical with the signal processing apparatus of described liquid crystal indicator, the response speed of described liquid crystal indicator improves and the raising of the video quality that described liquid crystal indicator shows also can both be accomplished.

Moreover, liquid crystal indicator of the present invention, have inputting video data when being interlace signal according to the some transform methods in a plurality of transform methods, this interlace signal is transformed into the converter unit of the interlacing of progressive signal-line by line, this liquid crystal indicator is according to the video data before at least 1 vertical cycle and the video data of current vertical cycle, the video data of supplying with LCD panel is increased the weight of conversion, so that increase the weight of the gray scale migration of at least 1 vertical cycle front and back of described progressive signal, thereby compensate the optical response of described LCD panel, and, change and control increases the weight of the conversion degree to described video data according to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts.

Above-mentioned each unit can only be realized with hardware, but also can be realized by making the computing machine executive software.That is, program of the present invention is used for computing machine, this computer-controlled liquid crystal indicator have inputting video data when being interlace signal according to the some methods in a plurality of transform methods, this interlace signal is transformed into the converter unit of the interlacing of progressive signal-line by line; And the conversion that increases the weight of of carrying out current vertical cycle video data, so that increase the weight of before and after at least 1 vertical cycle of described progressive signal the gray scale migration increase the weight of converter unit, by the video data of supplying with described LCD panel being increased the weight of conversion according to the video data before at least 1 vertical cycle and the video data of current vertical cycle, compensate the optical response of described LCD panel, and described program makes this computing machine carry out the transform method that adopts according in the conversion process of the converter unit of described interlacing-line by line, change and control to the processing that increases the weight of the conversion degree of described video data.Again, another program of the present invention makes computing machine carry out work, and this computing machine has the converter unit that interlaced video signal is transformed into progressive-scan video signal; And the vision signal of proofreading and correct current vertical cycle is with the correcting unit of the migration of the gray scale before and after at least 1 vertical cycle that increases the weight of described progressive-scan video signal, and described converter unit can carry out conversion with a plurality of transform methods, so that according to the transform method of described converter unit, the gray scale migration of changing described correcting unit increases the weight of degree.Again, recording medium of the present invention writes down the arbitrary program in these programs.

Carried out when changing the described program that increases the weight of the conversion degree by described computing machine, this computer-controlled liquid crystal indicator carries out work as above-mentioned liquid crystal indicator.And, to carry out when changing the described program that increases the weight of the conversion degree by described computing machine, this computing machine carries out work as the signal processing apparatus of above-mentioned liquid crystal indicator.Therefore, identical with the signal processing apparatus of above-mentioned liquid crystal indicator and liquid crystal indicator, its result also can make the response speed of described liquid crystal indicator improve and the quality that is shown to the video of described liquid crystal indicator to improve the both accomplished.

On the other hand, liquid crystal display control method of the present invention, by the video data of supplying with described LCD panel being increased the weight of conversion according to the video data before at least 1 vertical cycle and the video data of current vertical cycle, compensate the optical response of described LCD panel, have following steps: according to the some methods in a plurality of transform methods, this interlace signal is transformed into the shift step of progressive signal when inputting video data is interlace signal; And carry out current vertical cycle video data increase the weight of conversion, so that increase the weight of the step that the gray scale of at least 1 vertical cycle front and back of described progressive-scan video signal is moved, according to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts, change and control increases the weight of the conversion degree to described video data.

Again, in order to solve above-mentioned problem, liquid crystal display control method of the present invention comprises following steps: the shift step that interlaced video signal is transformed into progressive-scan video signal; And the vision signal of proofreading and correct current vertical cycle, so that increase the weight of the aligning step that the gray scale of at least 1 vertical cycle front and back of described progressive-scan video signal is moved, described shift step can be carried out conversion with a plurality of methods, comprise the transform method according to described shift step, the gray scale migration of changing described aligning step increases the weight of the controlled step of degree.

Moreover, in order to solve above-mentioned problem, liquid crystal display control method of the present invention, comprise the shift step that interlaced video signal is transformed into progressive-scan video signal, and this progressive-scan video signal is modulated, so that the migration of the gray scale of each pixel of correcting liquid crystal display device, described shift step can be carried out conversion with a plurality of methods, according to the transform method of described shift step, change described gray scale migration and increase the weight of degree.

Again, in order to solve above-mentioned problem, liquid crystal display control method of the present invention, when comprising inputting video data and being interlace signal according to the some methods in a plurality of transform methods, this interlace signal is transformed into the shift step of the interlacing of progressive signal-line by line, by the video data of supplying with described LCD panel being increased the weight of conversion according to the video data before at least 1 vertical cycle and the video data of current vertical cycle, compensate the optical response of described LCD panel, according to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts, change and control increases the weight of the conversion degree to described video data.

These liquid crystal display control methods are according to transform method, change and describedly increase the weight of the migration of conversion degree or described gray scale and increase the weight of degree, thereby when producing progressive signal (progressive-scan video signal) with arbitrary method, can always do to increase the weight of conversion, or always proofread and correct the gray scale migration with suitable degree with suitable degree.

Its result, in these methods, the response speed of described liquid crystal indicator improve and the quality that is shown to the video of described liquid crystal indicator improve both can both be accomplished.

According to the present invention,, have and to do the gray scale migration with suitable degree when producing progressive-scan video signal and increase the weight of being correlated with of (increasing the weight of conversion) with arbitrary transform method then because migration increases the weight of degree according to the transform method of interlacing-conversion line by line change gray scale.Therefore, the response speed of described liquid crystal indicator improves and the raising of the video quality that described liquid crystal indicator shows can both be accomplished, can be applicable to and realize hardware television receiver, LCD monitor and various liquid crystal indicator.

Record by shown in hereinafter can fully understand another object of the present invention, special and advantage.With reference in the description of the drawings, can understand advantage of the present invention below.

Description of drawings

Fig. 1 is the figure of explanation liquid crystal indicator embodiment 1 usefulness of the present invention.

Fig. 2 is that explanation is used the OS parameter that obtains with reference to the OS of figure 1 table storer (ROM) and obtained the figure that the situation that increases the weight of transform data of supplying with LCD panel is used according to the multiplication coefficient that input signal types provides.

Fig. 3 is the figure that the OS of reference shows the embodiment 2 under the situation of storer (ROM) when the OS table storer (ROM) of reference when input image data being set respectively being progressive signal and input image data being shown being interlace signal.

Fig. 4 be illustrate the multiplication coefficient that adds temperature sensor in the composition of Fig. 1 and use temperature in the OS parameter that obtains with reference to OS table storer (ROM), the signal type that meets input image data and the device carry out to view data increase the weight of conversion process the time the figure of embodiment 3.

Fig. 5 is the OS table storer (ROM) of reference when the OS table storer (ROM) that makes Fig. 4 being shown constituting the OS table storer (ROM) of reference when input image data being set respectively being progressive signal and input image data and be interlace signal and with the multiplication coefficient change of the interior temperature of the equality circuit figure to the embodiment 4 under the situation that increases the weight of the conversion degree of view data.

Fig. 6 is that multiplication coefficient that explanation is used the OS parameter that obtains with reference to the OS of figure 5 table storer (ROM) and met the temperature detection data of temperature sensor is obtained the figure that the situation that increases the weight of transform data is used.

Fig. 7 is the figure that deposits respectively the embodiment 5 under the situation that OS with the corresponding OS parameter of a plurality of temperature ranges shows storer (ROM) of the OS table storer (ROM) of depositing corresponding with a plurality of temperature ranges respectively OS parameter of reference when formation being shown input image data being set respectively being progressive signal and input image data reference when being interlace signal.

Fig. 8 is the figure that the detailed condition of the control CPU of key diagram 7 is used.

Fig. 9 is the OS table storer (ROM) of Fig. 7 is switched and selects in explanation according to temperature in the signal type of input image data and the device the figure of action usefulness.

Figure 10 be when input image data being shown being progressive signal and the situation of input image data shared OS parameter when being interlace signal under the figure of embodiment 6.

Figure 11 is the figure that the detailed condition of the control CPU of explanation Figure 10 is used.

Figure 12 is the OS table storer (ROM) of Figure 10 is switched and selects in explanation according to temperature in the signal type of input image data and the device the figure of action usefulness.

Figure 13 is the figure that the embodiment 7 when another being set forming control CPU as Figure 10 is shown.

Figure 14 is when input image data being shown being progressive signal and input image data figure of the embodiment 8 under the situation of common sparing OS parameter only when being interlace signal.

Figure 15 illustrates the block diagram that the crucial portion of signal processing part forms in the another embodiment of the present invention.

Figure 16 is the block diagram that the crucial portion composition of the image display device that comprises described signal processing part is shown.

Figure 17 is the circuit diagram that the composition example of the pixel that is located at described image display device is shown.

Figure 18 is the figure that the driving method of described image display device is shown.

Figure 19 is the figure that produces the reason of flicker when the duplicate field vision signal is shown with the generation progressive-scan video signal.

Figure 20 illustrates the block diagram that the crucial portion of modulation treatment portion of the composition example of the modulation treatment portion that is located at described signal processing part forms.

Figure 21 is the figure that the data of depositing in the look-up table that is located at described modulation treatment portion are shown.

Figure 22 is the block diagram that the crucial portion composition of another modulation treatment portion that forms example is shown.

Figure 23 illustrates the block diagram that the crucial portion of signal processing part forms in another embodiment of the present invention.

Figure 24 is the figure that the relation between the look-up table that is located at described signal processing part is shown.

Figure 25 illustrates the composition example of the modulation treatment portion that is located at described signal processing part, is the block diagram that the crucial portion composition of modulation treatment portion is shown.

Figure 26 is the figure that the relation between the look-up table that is located at described signal processing part is shown.

Figure 27 illustrates the figure of the relation between another look-up table that is located at signal processing part of forming example.

Figure 28 illustrates the block diagram that the crucial portion of control part forms in the composition example of the control part that is located at described signal processing part.

Figure 29 is the block diagram that the crucial portion composition of another control part of forming example is shown.

Figure 30 is the figure that the relation between another look-up table that is located at signal processing part of forming example is shown.

Figure 31 illustrates the figure that an existing liquid crystal indicator is formed example.

Figure 32 is that the control CPU that a Figure 31 is shown forms routine figure.

Figure 33 is the figure of explanation according to the action usefulness of the OS table storer (ROM) of temperature switching in the device and selection Figure 31.

Figure 34 is the figure that the overshoot of the liquid crystal indicator of explanation Figure 31 drives usefulness.

Figure 35 is the figure that the conversion process of the existing interlacing of explanation-is line by line used.

Figure 36 is that explanation is because of the interlacing of Figure 35-the every frame of the outline position of conversion process display image changes the figure of usefulness line by line.

Embodiment

Below, utilize embodiment and comparative example to further describe the present invention, but the present invention is not subjected to their any qualifications.

Embodiment 1

Fig. 1 is the figure of explanation liquid crystal indicator embodiment 1 usefulness of the present invention, and Fig. 2 is that explanation is used the OS parameter that obtains with reference to the OS of figure 1 table storer (ROM) and obtained the figure that the situation that increases the weight of transform data of supplying with LCD panel is used according to the multiplication coefficient that input signal types provides.Below explanation in, each embodiment increase the weight of transformation component increase the weight of the conversion difference, thereby in each embodiment respectively to increasing the weight of a label among transformation component mark 114A～114F.Equally, because the control difference of the control CPU in each embodiment marks a label among 112A～112G respectively in each embodiment.

The liquid crystal indicator of embodiment 1 shown in Figure 1, when input image data is progressive signal, former state does not have conversion, after being transformed into progressive signal with a kind of method in the transform method of multiple interlacing-line by line when input image data is interlace signal, execution is to the conversion process that increases the weight of of view data, to improve the optic response speed of LCD panel.At this moment, this liquid crystal indicator changes according to the transform method of interlacing-line by line and the view data of control after to the conversion process of interlacing-line by line increases the weight of the conversion degree, and be provided with video signal type test section 110, the transformation component 111 of interlacing-line by line, control CPU112A, frame memory 115, liquid-crystal controller 116, LCD panel 117.

As the video signal type test section 110 of signal type detection unit, detecting input image data is the interlace signal or the signal type of progressive signal.At this moment, available to the detection method of horizontal frequency counting with the judgment signal form.

As the transformation component 111 of interlacing-interlacing of converter unit line by line-line by line, illustrated as Figure 35, even field and odd field to interlace signal carries out data interpolation respectively, and makes each even field and odd field form the conversion of the view data of 1 frame share respectively, as shown in figure 36.Thereby, be transformed into the simulation progressive-scan video signals of 60 frame/seconds from 30 frame/seconds (60 s'/second) interlaced video signal (during the NTSC broadcast system).

The transformation component 111 of present embodiment institute interlacing-line by line can be transformed into progressive signal with interlace signal with the some methods in the transform method of a plurality of interlacing-line by line.As an example, the converter technique of present embodiment institute interlacing-transformation component 111 available active self-adaptation interlacing line by line-line by line, the also available converter technique of only handling based on intrafield interpolation constitutes the transform method of interlacing-line by line.

Control CPU112A as control module, when video signal type test section 110 detects interlace signal, make in the transform method of interlacing-a plurality of interlacing of transformation component 111 usefulness line by line-line by line one carry out the conversion process of interlacing-line by line, or according to interlacing-some interlacing of transformation component 111 usefulness line by line-transform method is done interlacing-conversion line by line line by line, control increases the weight of the conversion process that increases the weight of of transformation component 114A.

Therefore, liquid crystal indicator can according to for example from the type of the vision signal of video signal source and S/N than the picture quality of, user preferences or requirement etc., manually select the transform method that is fit to automatically or by the user.Manually select suitable transform method by the user, comprise that constituting the user utilizes the visual Video processing that is judged as the vision signal of S/N ratio to make in the video of demonstration noise remarkable, and the user can be to interlacing-interlacing of transformation component 111 line by line-transform method is selected line by line, switches to other method from certain method.

Increase the weight of transformation component 114A as what increase the weight of converter unit, utilize the control (the coefficient switch-over control signal of exporting for control CPU112A in the present embodiment) of control CPU112A, view data (view data before 1 vertical cycle) before 1 frame of the view data (view data of current vertical cycle) of the present frame of present demonstration and frame memory 115 storages is compared, from OS table storer (ROM) 113 read meet as this comparative result the OS parameter (increasing the weight of transformation parameter) of gray scale migration model, and increase the weight of transform data (writing gradation data), the liquid-crystal controller 116 of output according to what the current frame image that the OS parameter that this is read is obtained present demonstration showed needs.Here, increase the weight of among the transformation component 114A, when input image data was progressive signal, the input former state did not have the view data of conversion, and when input image data was interlace signal, input was with one in the transform method of a plurality of interlacing-line by line view data of carrying out after the conversion process of interlacing-line by line.

At this moment, as shown in Figure 2, can obtain the transform data that increases the weight of of supply LCD panel 117 by using the OS parameter that obtains with reference to OS table storer (ROM) 113 and conversion provides according to the transform method of interlacing-some interlacing of transformation component 111 usefulness line by line-line by line multiplication coefficient.。Promptly, after the M-1 frame input image data of the M frame input image data (current data) and the frame memory 115 of present demonstration being deposited by operational part 114d (past data) compares, read corresponding with this comparative result (gray scale migration) (just by this comparative result appointment) OS parameter from OS table storer (ROM) 113, and implement computing such as linear interpolation, thereby output increases the weight of operational data.

Then, deduct this by totalizer 114a from the current frame image data and increase the weight of operational data, obtain difference data; This difference data be multiply by overlapping demonstration α 1 or the β 1 that is used to from the coefficient switching signal switching of controlling CPU112A by multiplier 114b; Difference data and the addition of current frame image data that to multiply by this multiplication coefficient by totalizer 114c, and the data that obtain after this addition are supplied with liquid-crystal controller 116 as increasing the weight of transform data.Thus, drive demonstration, make liquid crystal pixel form the transmissivity of input image data regulation at the appointed time.Here, specified data is meant the demonstration phase (pixel is rewritten the cycle) of 1 two field picture, equal 1 frame period (being 16.7msec when for example 60Hz lines by line scan) under the situation that common maintenance shows, be taken as 1 frame period for example 50% during deceive under the situation that the analog pulse type that shows shows, the image demonstration phase is 1/2 frame period (being 8.3msec when for example 60Hz lines by line scan).

Multiplication coefficient α=1 when input image data being done the conversion of interlacing-line by line with the transform method of activity self-adaptation interlacing-line by line, multiplication coefficient β＜1 when input image data being done the conversion of interlacing-line by line with the transform method of only handling based on intrafield interpolation.Therefore, when input image data being done the conversion of interlacing-line by line with the transform method of activity self-adaptation interlacing-line by line, select multiplication coefficient α (=1), carry out the conversion that increases the weight of of view data, make liquid crystal pixel form the transmissivity of input image data regulation at the appointed time, thereby implement not produce the high quality graphic demonstration of afterimage and hangover.On the other hand, when input image data being done the conversion of interlacing-line by line with the transform method of only handling based on intrafield interpolation, select multiplication coefficient β (＜1), can make that to increase the weight of the conversion degree less, prevent that non-hope flicker and zigzag fluctuating that the conversion process of this interlacing-line by line makes display image profile portion etc. locate to produce from waiting the picture quality variation that increases the weight of to cause.

In OS table storer (ROM) 113, when video data is 8 256 gray levels, can keep OS parameter (measured value) to whole 256 gray levels, but for example as shown in Figure 21, represent 9 * 9 OS parameters (measured value) of gray scale that the transform data that increases the weight of of other activity is then obtained from above-mentioned measured value with computings such as linear interpolations by constituting 9 of only storing, can suppress the memory capacity that OS shows storer (ROM) 113 per 32 gray levels.

Frame memory 115 can be deposited the view data of 1 frame share, and with respect to the view data before current frame image deposit data 1 frame of selecting to show.Liquid-crystal controller 116 carries out image to LCD panel 117 and shows according to increasing the weight of transform data driving grid driver 118 and source electrode driver 119 from what increase the weight of transformation component 114A.LCD panel 117 has as the TFT of above-mentioned nonlinear element (on-off element) (thin film transistor (TFT)), and utilizes driving grid driver 118 and source electrode driver 119, carries out image and shows.

Then, illustrate that input image data in the above-mentioned embodiment 1 increases the weight of the liquid crystal display control method of conversion.

At first, when having the input image data of interlace signal, the transformation component 111 of interlacing-line by line is according to the control of control CPU112A, with transform method of activity self-adaptation interlacing-line by line or the transform method only handled this input image data is carried out interlacing-conversion line by line based on intrafield interpolation, produce the simulation progressive signal, this signal is input to increases the weight of transformation component 114A.

Here, by control CPU112A to 111 indications of the transformation component of interlacing-line by line during with the conversion of activity self-adaptation interlacing-interlacing of transform method line by line-line by line, the transformation component 111 of interlacing-line by line carries out the conversion process of activity self-adaptation interlacing-line by line, produce the simulation progressive signal, this signal is input to increases the weight of transformation component 114A.

At this moment, control CPU112A is to increasing the weight of the conversion process that increases the weight of of the transformation component 114A indication view data after to the conversion process of activity self-adaptation interlacing-line by line.At this moment, as indicated above, after the M-1 frame input image data of the M frame input image data (current data) and the frame memory 115 of present demonstration being deposited by operational part 114d (past data) compares, read and the corresponding OS parameter of this comparative result (gray scale migration) from OS table storer (ROM) 113, and obtain and increase the weight of operational data.This increases the weight of the data that operational data is the transmissivity of the LCD panel 117 M frame input image data regulation that can reach present demonstration at the appointed time.

Here, multiplication coefficient α 1 (=1) during by the conversion process of control CPU112A selection activity self-adaptation interlacing-line by line, thereby the difference data of subtracter 114a be multiply by multiplication coefficient α 1 (=1) (promptly by multiplier 114b, with the output of difference data former state), by the data and the M frame input image data addition that show now of totalizer 114c with this gained that multiplies each other, and the data of this addition gained are supplied with liquid-crystal controller 116 (therefore, at this moment supplying with the operational data that increases the weight of that transform data equals operational part 114d that increases the weight of of LCD panel 117) as increasing the weight of transform data.Like this, when input image data being done the conversion of interlacing-line by line with the transform method of activity self-adaptation interlacing-line by line, owing to carry out display driver, make liquid crystal pixel form the transmissivity of input image data regulation at the appointed time, the optical response of compensation LCD panel 117, the high quality graphic that carries out noresidue image and hangover shows.

Otherwise, during transform method that control CPU112A only handles based on intrafield interpolation 111 indications of the transformation component of interlacing-line by line, the transformation component 111 of interlacing-line by line carries out the conversion process only handled based on intrafield interpolation, produces the simulation progressive signal, this signal is input to increases the weight of transformation component 114A.

At this moment, control CPU112A is to increasing the weight of transformation component 114A indication to only utilizing intrafield interpolation to handle to do the conversion process that increases the weight of of view data after the conversion process.In the case, as indicated above, after the M-1 frame input image data of the M frame input image data (current data) and the frame memory 115 of present demonstration being deposited by operational part 114d (past data) compares, read and the corresponding OS parameter of this comparative result (gray scale migration) from OS table storer (ROM) 113, and obtain and increase the weight of operational data.This increases the weight of the data that operational data is the transmissivity of the LCD panel 117 M frame input image data regulation that can reach present demonstration at the appointed time.Obtain the difference data of this operational data and the present M frame input image data that shows by subtracter 114a.

Here, multiplication coefficient β 1 (=1) when selecting the conversion process of the interlacing only handled-line by line based on intrafield interpolation by control CPU112A, thereby the difference data of subtracter 114a be multiply by multiplication coefficient β 1 (=1) (promptly by multiplier 114b, difference data is reduced back output), by the data and the M frame input image data addition that show now of totalizer 114c with this gained that multiplies each other, and the data of this addition gained are supplied with liquid-crystal controller 116 (therefore, at this moment supplying with the operational data that increases the weight of that increases the weight of the transform data less-than operation 114d of portion of LCD panel 117) as increasing the weight of transform data.Like this, when only utilizing intrafield interpolation to handle the input image data conversion process, the optical response of compensation LCD panel 117 suppresses afterimage and hangover, carries out high-quality image and shows.

In sum, in the embodiment 1, when the converter technique of interlacing-transformation component 111 usefulness activity self-adaptation interlacing line by line-is line by line done the conversion of interlacing-line by line to input image data, increase the weight of transformation component 114A from OS show storer (ROM) 113 read with present frame input image data and 1 frame before the corresponding OS parameter of comparative result (gray scale migration) of input image data, to output to liquid-crystal controller 116 as increasing the weight of transform data according to the operational data that increases the weight of that this OS parameter of reading obtains, thereby can carry out display driver, make liquid crystal pixel reach the transmissivity of input image data regulation at the appointed time, thereby the high quality graphic that can carry out noresidue image and hangover show.

Otherwise, when the converter technique that transformation component 111 usefulness of interlacing-are line by line only handled based on intrafield interpolation is done the conversion of interlacing-line by line to input image data, increase the weight of transformation component 114A from OS show storer (ROM) 113 read with present frame input image data and 1 frame before the corresponding OS parameter of comparative result (gray scale migration) of input image data, make and increase the weight of the increase the weight of operational data of conversion degree less than the OS parameter acquisition of reading according to this, and output to liquid-crystal controller 116 as increasing the weight of transform data, thereby can improve response speed of liquid crystal, suppress afterimage and hangover, simultaneously can also be when doing the conversion of interlacing-line by line with the transform method of above-mentioned interlacing-line by line, the characteristic degradation that the false signal of generations such as inhibition image outline portion causes can be carried out high-quality image and be shown.

Embodiment 2

Fig. 3 illustrates to be provided with respectively to deposit when input image data made the conversion process of activity self-adaptation interlacing-line by line to be used for the figure that OS table storer (ROM) and depositing when utilizing intrafield interpolation to handle input image data made conversion process that view data increases the weight of the OS parameter of conversion is used for the embodiment 2 under the situation that OS that view data increases the weight of the OS parameter of conversion shows storer (ROM).In the accompanying drawing that the following describes, repeat specification is omitted in part mark identical meet shared with Fig. 1.

Liquid crystal indicator shown in Figure 3, the OS that has OS table storer (ROM) 113a of reference when input image data made the conversion process of self-adaptation interlacing-line by line and only utilize intrafield interpolation to handle reference when input image data made conversion process shows storer (ROM) 113b, the transform method of the interlacing of the transformation component of interlacing-line by line 111 when carrying out the conversion of interlacing-line by line-line by line, switch and with reference to the side among OS table storer (ROM) 113a and the 113b, to carry out the processing that increases the weight of of view data.

Again, the OS parameter value in OS table storer (ROM) 113b is shown the interior OS parameter value of storer (ROM) 113a less than OS.This is because as indicated above, when only utilizing the intrafield interpolation processing that interlace signal is made conversion process, in order to suppress that false signal that image outline portion produces is increased the weight of and significantly, need be to reduce when the comparison input image data is made the conversion process of activity self-adaptation interlacing-line by line under the situation of interlace signal view data increased the weight of the conversion degree at input image data.

Here, each OS parameter is stored in separately OS table storer (ROM) 113a and the 113b that is provided with respectively, but each OS parameter is deposited in the different table district that also can be formed in single OS table storer (ROM) certainly respectively, and according to switching signal from control CPU112B, switch the list area of reference adaptively, thereby switch and selection OS parameter, obtain and increase the weight of transform data.

In this composition, by control CPU112B to 111 indications of the transformation component of interlacing-line by line during with the conversion of activity self-adaptation interlacing-interlacing of transform method line by line-line by line, the transformation component 111 of interlacing-line by line carries out the conversion process of activity self-adaptation interlacing-line by line, produce the simulation progressive signal, this signal is input to increases the weight of transformation component 114B.

At this moment, control CPU112B is to as the conversion process that increases the weight of that increases the weight of the transformation component 114B indication view data after to the conversion process of activity self-adaptation interlacing-line by line that increases the weight of converter unit.In the case, by increase the weight of transformation component 114B OS table storer (ROM) 113a of reference when input image data being made the conversion process of activity self-adaptation interlacing-line by line read the comparative result (gray scale migration) of the M-1 frame input image data of depositing with the M frame input image data (current data) and the frame memory 115 of demonstration now (past data) corresponding (, by this comparative result appointment) the OS parameter, implement computings such as linear interpolation with this OS parameter, thereby obtain the transform data that increases the weight of that outputs to liquid-crystal controller 116.This increases the weight of the data that transform data is the transmissivity of the LCD panel 117 M frame input image data regulation that can reach present demonstration at the appointed time.

Thereby, when input image data is made the conversion process of self-adaptation interlacing-line by line, carry out display driver, make liquid crystal pixel form the transmissivity of input image data regulation at the appointed time, thereby the optical response of compensation LCD panel 117, the high quality graphic that carries out noresidue image and hangover shows.

Otherwise, during conversion process that control CPU112B only handles based on the energy storage interpolation 111 indications of the transformation component of interlacing-line by line, the transformation component 111 of interlacing-line by line carries out the conversion process only handled based on intrafield interpolation, produces the simulation progressive signal, this signal is input to increases the weight of transformation component 114B.

At this moment, control CPU112B is right increases the weight of the conversion process that increases the weight of of the transformation component 114B indication view data after to the conversion process of interlacing-line by line.In the case, by OS table storer (ROM) 113b that increases the weight of transformation component 114B reference when input image data is interlace signal read the comparative result (gray scale migration) of the M-1 frame input image data of depositing with the M frame input image data (current data) and the frame memory 115 of demonstration now (past data) corresponding (, by this comparative result appointment) the OS parameter, implement computings such as linear interpolation with this OS parameter, thereby obtain the transform data that increases the weight of that outputs to liquid-crystal controller 116.This increases the weight of transform data when input image data is interlace signal, compares with the transform data that increases the weight of that reference OS table storer (ROM) 113a obtains, and it is little that it increases the weight of the conversion degree.

Thereby, when only utilizing the intrafield interpolation processing that input image data is made conversion process, compensate the optical response of LCD panel 117 again, suppress to produce afterimage and hangover, the false signal that suppresses the non-hope that the conversion process of this interlacing-line by line produces is again increased the weight of and the picture quality variation that causes, carries out high quality graphic and shows.

Like this, in the embodiment 2, have OS table storer (ROM) 113a that deposits the OS parameter of using when input image data made the conversion process of activity self-adaptation interlacing-line by line and deposit OS table storer (ROM) 113b of the OS parameter of using when only utilizing intrafield interpolation to handle input image data made conversion process, and make the OS parameter value in OS table storer (ROM) 113b show the interior OS parameter value of storer (ROM) 113b less than OS, according to detected progressive signal, or the interlace signal use is shown the OS parameter that the side storer (ROM) 113a and the 113b reads from OS, obtain and increase the weight of transform data, thereby can suitably increase the weight of conversion process what view data met the transform method of interlacing to input image data-line by line.

Embodiment 3

Fig. 4 be illustrate add temperature sensor in the composition of Fig. 1 and use the OS parameter that obtains with reference to OS table storer (ROM) 113, meet interlacing-line by line in transform method and the device multiplication coefficient of temperature carry out to view data increase the weight of conversion process the time the figure of embodiment 3.

In liquid crystal indicator shown in Figure 4, with mentioned above identical, the OS parameter of optimizing when OS table storer (ROM) 113 is also deposited input image data made the conversion process of activity self-adaptation interlacing-line by line (increasing the weight of transformation parameter), and use and meet the transform method of interlacing-interlacing of transformation component 111 line by line-line by line and carry out the conversion that increases the weight of to input image data as multiplication coefficient (back elaboration) α 1～α 4, the β 1～β 4 of the temperature detection data of the sensor 120 of temperature detecting unit.

Here, as indicated above, OS table storer (ROM) 113 can be under video data be 8 the situation of 256 gray levels, maintenance is to the OS parameter (measured value) of whole 256 gray levels, but also but configuration example is only stored 9 * 9 OS parameters (measured value) that 9 of per 32 gray levels are represented gray scale as shown in figure 21 like that, the transform data that increases the weight of to other gray scale is then obtained from above-mentioned measured value with computings such as linear interpolations, thereby suppresses the memory capacity of OS table storer (ROM) 113.

The transformation component 114C that increases the weight of of present embodiment is realized by form identical with Fig. 2, can use the OS parameter of reading from OS table storer (ROM) and meet signal type and multiplication coefficient α 1～α 4, the β 1～β 4 of the temperature of LCD panel 117 obtain the transform data that increases the weight of that optical response that compensation comprises the temperature dependent properties of LCD panel 117 uses, it is outputed to liquid-crystal controller 116.Here, the multiplication coefficient in the time of will making the conversion process of activity self-adaptation interlacing-line by line to input image data is taken as α 1～α 4, and the multiplication coefficient when only utilizing intrafield interpolation to handle input image data made conversion process is taken as β 1～β 4.Wherein, β 1＜α 1, β 2＜α 2, β 3＜α 3, β 4＜α 4.

Promptly, following situation is described: will be divided into from the temperature detection data of temperature sensor 120≤15 ℃,＞15 ℃ and≤25 ℃,＞25 ℃ and≤35 ℃,＞4 grades of temperature ranges 35 ℃ the time, when input image data is progressive signal, for example get multiplication coefficient α 1 (＞α 2) under the situation of temperature≤15 ℃ in the device,＞15 ℃ and≤get multiplication coefficient α 2 (＞α 3) under 25 ℃ the situation,＞25 ℃ and≤get multiplication coefficient α 3 (＞α 4) under 35 ℃ the situation, get multiplication coefficient α 4 (=1) under＞35 ℃ the situation; When input image data is interlace signal, for example get multiplication coefficient β 1 (＞β 2) under the situation of temperature≤15 ℃ in the device,＞15 ℃ and≤get multiplication coefficient β 2 (＞β 3) under 25 ℃ the situation,＞25 ℃ and≤get multiplication coefficient β 3 (＞β 4) under 35 ℃ the situation, get multiplication coefficient β 4 (＜1) under＞35 ℃ the situation.But, certainly also can make multiplication coefficient corresponding to≤3 grades or 〉=5 grades temperature range.

Obtain these multiplication coefficients α 1～α 4, β 1～β 4 in advance from the optical response measured value of LCD panel 117.Thereby, when only utilizing the intrafield interpolation processing that input image data is made conversion process, can be with the time little increase the weight of the conversion that increases the weight of that the conversion degree is carried out view data than the conversion process of activity self-adaptation interlacing-line by line, thereby can compensate the optical response of LCD panel 117 again, suppress to produce afterimage and hangover, the false signal that suppresses the non-hope that the conversion process of this interlacing-line by line produces is again increased the weight of and the picture quality variation that causes, carries out high quality graphic and shows.

Again, temperature sensor 120 preferably is located at it in LCD panel 117 according to its original purpose, but this difficulty structurally, thereby the position that is arranged on as far as possible near LCD panel 117 gets final product.And temperature sensor 120 is not limited to 1, can be a plurality ofly, and it is corresponding with each position of LCD panel 120 that it is configured to.When a plurality of temperature sensor 120 was set, the value that the testing result to each temperature sensor 120 can be averaged also can change testing result big, some temperature sensors 120 as the temperature detection data as the temperature detection data.

In this composition, when the conversion of activity self-adaptation interlacing-interlacing of transform method line by line-is line by line for example used in 111 indications to the transformation component of interlacing-line by line by control CPU112C, the transformation component 111 of interlacing-line by line carries out the conversion process of activity self-adaptation interlacing-line by line, produce the simulation progressive signal, this signal is input to increases the weight of transformation component 114C.

At this moment, control CPU112C is to increasing the weight of the conversion process that increases the weight of of the transformation component 114C indication view data after to the conversion process of activity self-adaptation interlacing-line by line.In the case, as indicated above, after the M-1 frame input image data of the M frame input image data (current data) and the frame memory 115 of present demonstration being deposited by operational part 114d (past data) compares, from OS table storer (ROM) 113 read corresponding with this comparative result (gray scale migration) (promptly, by this comparative result appointment) the OS parameter, and obtain and increase the weight of operational data.Then, obtain the difference data of this operational data and the present M frame input image data that shows by subtracter 114a.

At this moment, import temperature detection data among the control CPU112C from temperature sensor 120, and by controlling CPU112C switching and selector should a coefficient among the multiplication coefficient α 1～α 4 of temperature detection data.Here, the temperature detection data are multiplication coefficient α 1 (＞α 2) under situation for example≤15 ℃,＞15 ℃ and≤be multiplication coefficient α 2 (＞α 3) under 25 ℃ the situation,＞25 ℃ and≤be multiplication coefficient α 3 (＞α 4) under 35 ℃ the situation, be multiplication coefficient α 4 (=1) under＞35 ℃ the situation.

When control CPU112C switches among these multiplication coefficients α 1～α 4 one according to the temperature detection data, multiplier 114b multiply by among multiplication coefficient α 1～α 4 one to described difference data, totalizer 114c obtain after this is multiplied each other data and the M frame input image data addition that shows now, and with the data that obtain after this addition as increasing the weight of transform data supply liquid-crystal controller 116.Thereby when input image data was progressive signal, even the temperature variation of LCD panel 117 also compensates the optical response (comprising temperature dependent properties) of LCD panel 117, the high quality graphic that carries out the noresidue image showed.

Otherwise, during the conversion process 111 indications of the transformation component of interlacing-line by line for example only handled based on intrafield interpolation by control CPU112C, the transformation component 111 of interlacing-line by line carries out the conversion process only handled based on intrafield interpolation, produces the simulation progressive signal, this signal is input to increases the weight of transformation component 114C.

At this moment, control CPU112C is to increasing the weight of the conversion process that increases the weight of of the transformation component 114C indication view data after to the conversion process of interlacing-line by line.In the case, as indicated above, after the M-1 frame input image data of the M frame input image data (current data) and the frame memory 115 of present demonstration being deposited by operational part 114d (past data) compares, from OS table storer (ROM) 113 read corresponding with this comparative result (gray scale migration) (promptly, by this comparative result appointment) the OS parameter, and obtain and increase the weight of operational data.Then, obtain the difference data of this operational data and the present M frame input image data that shows by subtracter 114a.

At this moment, import temperature detection data among the control CPU112C from temperature sensor 120, and by controlling CPU112C switching and selector should a coefficient among the multiplication coefficient β 1～β 4 of temperature detection data.Here, the temperature detection data are multiplication coefficient β 1 (＞β 2) under situation for example≤15 ℃,＞15 ℃ and≤be multiplication coefficient β 2 (＞β 3) under 25 ℃ the situation,＞25 ℃ and≤be multiplication coefficient β 3 (＞β 4) under 35 ℃ the situation, be multiplication coefficient β 4 (＜1) under＞35 ℃ the situation.

When control CPU112C switches among these multiplication coefficients β 1～β 4 one according to the temperature detection data, multiplier 114b multiply by among multiplication coefficient β 1～β 4 one to described difference data, totalizer 114c obtain after this is multiplied each other data and the M frame input image data addition that shows now, and with the data that obtain after this addition as increasing the weight of transform data supply liquid-crystal controller 116.

Here, when input image data is interlace signal, because β 1＜α 1, β 2＜α 2, β 3＜α 3, even β 4＜α 4 is the temperature variation of LCD panel 117, also compensate the optical response (comprising temperature dependent properties) of LCD panel 117, the high quality graphic that carries out noresidue image and hangover shows.

Like this, in the embodiment 3, multiplication coefficient β 1～β 4 when only utilizing intrafield interpolation to handle to make conversion process with the multiplication coefficient α 1～α 4 temperature detection data that meet temperature sensor 120, when input image data is made the conversion process of activity self-adaptation interlacing-line by line with to these data changes and control increases the weight of the conversion degree to view data, so can suitably increase the weight of conversion process to what view data was implemented temperature in transform method of the interlacing meet input image data-line by line and the device, show thereby can carry out high-quality image.

Embodiment 4

Fig. 5 illustrates the OS table storer that makes Fig. 4, (ROM) constitute the OS table storer that view data increases the weight of the OS parameter of conversion that is used for of depositing reference when input image data made the conversion process of activity self-adaptation interlacing-line by line is set respectively, (ROM) and deposit the OS table storer that view data increases the weight of the OS parameter of conversion that is used for of reference when only utilizing intrafield interpolation to handle input image data made conversion process, (ROM) and with the multiplication coefficient of temperature in the equality circuit change the embodiment under the situation that increases the weight of the conversion degree of view data, the figure of (embodiment 4).Fig. 6 is that multiplication coefficient that explanation is used the OS parameter that obtains with reference to the OS of figure 5 table storer (ROM) and met the temperature detection data of temperature sensor is obtained the figure that the situation that increases the weight of transform data is used.

The OS that liquid crystal indicator shown in Figure 5 has OS table storer (ROM) 113a of reference when input image data made the conversion process of self-adaptation interlacing-line by line and only utilize intrafield interpolation to handle reference when input image data made conversion process shows storer (ROM) 113b, according to the transform method of interlacing-interlacing of transformation component 111 line by line-line by line, switch and with reference to the side among OS table storer (ROM) 113a and the 113b, also usefulness multiplication coefficient α 1～α 4 (back elaboration) of meeting the temperature detection data of temperature sensor 120 carries out the conversion that increases the weight of to input image data simultaneously.

Here, each OS parameter is stored in separately OS table storer (ROM) 113a and the 113b that is provided with respectively, but each OS parameter is deposited in the different table district that also can be formed in single OS table storer (ROM) respectively, and according to switching signal from control CPU112D, switch the list area of reference adaptively, thereby switch and selection OS parameter, obtain and increase the weight of transform data.

Again, as indicated above, OS table storer (ROM) 113a, 113b can be under video data be 8 the situation of 256 gray levels, maintenance is to the OS parameter (measured value) of whole 256 gray levels, but also but configuration example is only stored 9 * 9 OS parameters (measured value) that 9 of per 32 gray levels are represented gray scale as shown in figure 21 like that, the transform data that increases the weight of to other gray scale is then obtained from above-mentioned measured value with computings such as linear interpolations, thereby suppresses the memory capacity of OS table storer (ROM) 113.

Present embodiment increase the weight of transformation component 114D, realized by form identical with Fig. 2, can use the OS parameter of reading from OS table storer (ROM) and multiplication coefficient α 1～α 4 of the temperature that meets LCD panel 117 to obtain the transform data that increases the weight of that optical response that compensation comprises the temperature dependent properties of LCD panel 117 uses, it is outputed to liquid-crystal controller 116.

Moreover, obtain these multiplication coefficients α 1～α 4 in advance from the optical response measured value of LCD panel 117.Thereby, when only utilizing the intrafield interpolation processing that input image data is made conversion process, can be with the time little increase the weight of the conversion that increases the weight of that the conversion degree is carried out view data than the conversion process of activity self-adaptation interlacing-line by line, the picture quality variation that is caused thereby the false signal of the non-hope that the conversion process that can suppress only to handle based on intrafield interpolation again produces increases the weight of, compensate the optical response (comprising temperature dependent properties) of LCD panel 117 again, the high quality graphic that carries out noresidue image and hangover shows.

In this composition, when the conversion of activity self-adaptation interlacing-interlacing of transform method line by line-is line by line for example used in 111 indications to the transformation component of interlacing-line by line by control CPU112D, the transformation component 111 of interlacing-line by line carries out the conversion process of activity self-adaptation interlacing-line by line, produce the simulation progressive signal, this signal is input to increases the weight of transformation component 114D.

At this moment, control CPU112D is to increasing the weight of the conversion process that increases the weight of of the transformation component 114D indication view data after to the conversion process of activity self-adaptation interlacing-line by line.In the case, as shown in Figure 6, be used to from the parameter switch-over control signal of controlling CPU112D, indication is with reference to OS storage part (ROM) 113a.So, by operational part 114d from OS show storer (ROM) 113 read the comparative result (gray scale migration) of the M-1 frame input image data of depositing with M frame input image data (current data) that shows now and frame memory 115 (past data) corresponding (promptly, by this comparative result appointment) the OS parameter, and obtain and increase the weight of operational data.Then, obtain the difference data of this operational data and the present M frame input image data that shows by subtracter 114a.

At this moment, input is from the temperature detection data of temperature sensor 120 among the control CPU112D, and will control that CPU112D switches and selector should coefficient switch-over control signal supply the increasing the weight of transformation component 114D that a coefficient among the multiplication coefficient α 1～α 4 of temperature detection data is used.Here, the temperature detection data are multiplication coefficient α 1 (＞α 2) under situation for example≤15 ℃,＞15 ℃ and≤be multiplication coefficient α 2 (＞α 3) under 25 ℃ the situation,＞25 ℃ and≤be multiplication coefficient α 3 (＞α 4) under 35 ℃ the situation, be multiplication coefficient α 4 (=1) under＞35 ℃ the situation.

According to the temperature detection data, be used to when the demonstration switch-over control signal of controlling CPU112D switches among these multiplication coefficients α 1～α 4 one, multiplier 114b multiply by among multiplication coefficient α 1～α 4 one to described difference data, totalizer 114c obtain after this is multiplied each other data and the M frame input image data addition that shows now, and with the data that obtain after this addition as increasing the weight of transform data supply liquid-crystal controller 116.Thereby when input image data was progressive signal, even the temperature variation of LCD panel 117 also compensates the optical response (comprising temperature dependent properties) of LCD panel 117, the high quality graphic that carries out noresidue image and hangover showed.

Otherwise, during the conversion process 111 indications of the transformation component of interlacing-line by line only handled based on intrafield interpolation by control CPU112D, the transformation component 111 of interlacing-line by line carries out the conversion process only handled based on intrafield interpolation, produces the simulation progressive signal, this signal is input to increases the weight of transformation component 114D.

At this moment, control CPU112D is to increasing the weight of transformation component 114D indication to only utilizing intrafield interpolation to handle to do the conversion process that increases the weight of of view data after the conversion process.In the case, be used to from the parameter switch-over control signal of controlling CPU112D, indication is with reference to OS storage part (ROM) 113b.So, by operational part 114d from OS show storer (ROM) 113 read the comparative result (gray scale migration) of the M-1 frame input image data of depositing with M frame input image data (current data) that shows now and frame memory 115 (past data) corresponding (promptly, by this comparative result appointment) the OS parameter, and obtain and increase the weight of operational data.Then, obtain the difference data of this operational data and the present M frame input image data that shows by subtracter 114a.

According to the temperature detection data, be used to when the demonstration switch-over control signal of controlling CPU112D switches among these multiplication coefficients α 1～α 4 one, multiplier 114b multiply by among multiplication coefficient α 1～α 4 one to described difference data, totalizer 114c obtain after this is multiplied each other data and the M frame input image data addition that shows now, and with the data that obtain after this addition as increasing the weight of transform data supply liquid-crystal controller 116.

Here, when only utilizing the intrafield interpolation processing that input image data is made conversion process, as indicated above, OS parameter value in OS table storer (ROM) 113b is shown the interior OS parameter value of storer (ROM) 113a less than OS, even thereby the temperature variation of LCD panel 117, also compensate the optical response (comprising temperature dependent properties) of LCD panel 117, the high quality graphic that carries out noresidue image and hangover shows.

Like this, in the embodiment 4, have OS table storer (ROM) 113a that deposits the OS parameter of using when input image data made the conversion process of activity self-adaptation interlacing-line by line and deposit OS table storer (ROM) 113b of the OS parameter of using when only utilizing intrafield interpolation to handle input image data made conversion process, and according to the transform method of described interlacing-interlacing of transformation component 111 line by line-line by line, use is shown the OS parameter that the side storer (ROM) 113a and the 113b reads from OS, also use the multiplication coefficient α 1～α 4 of the temperature detection data meet temperature sensor 120 to change simultaneously and control increases the weight of the conversion degree to input image data, so can suitably increase the weight of conversion process to what view data was implemented temperature in transform method of the interlacing meet input image data-line by line and the device, show thereby can carry out high-quality image.

Embodiment 5

Fig. 7 illustrates the figure that deposits respectively the embodiment 5 under the situation that OS with the corresponding OS parameter of a plurality of temperature ranges shows storer (ROM) that formation is provided with the OS table storer (ROM) of depositing corresponding with a plurality of temperature ranges respectively OS parameter of reference when input image data made the conversion process of activity self-adaptation interlacing-line by line respectively and only utilizes intrafield interpolation to handle reference when input image data made conversion process.Fig. 8 is the figure that the detailed condition of the control CPU of key diagram 7 is used.Fig. 9 is explanation according to the figure of action usefulness that temperature in transform method of the interlacing of input image data-line by line and the device is switched and selected the OS table storer (ROM) of Fig. 7.

As shown in Figure 7, in the embodiment 5, the OS that the OS table storer (ROM) 1131～1134 of reference when input image data made the conversion process of activity self-adaptation interlacing-line by line is set and only utilizes intrafield interpolation to handle reference when the input picture number made conversion process shows storer (ROM) 1135～1138.And, according to temperature in the device that obtains to the transform method of the interlacing of input image data-line by line with by temperature detection data from temperature sensor 120, switch and with reference to one in the OS table storer (ROM) 1131～1138, to carry out the conversion process that increases the weight of view data.

OS parameter value in the OS table storer (ROM) 1131～1134 of the reference when input image data being made the conversion process of activity self-adaptation interlacing-line by line of the OS parameter value when here, only utilizing intrafield interpolation to handle input image data made intrafield interpolation and handle in the OS table storer (ROM) 1135～1138 of reference.This is because as indicated above, when only utilizing the intrafield interpolation processing that interlace signal is made conversion process, in order to suppress that false signal that image outline portion produces is increased the weight of and significantly, need be to reduce when the comparison input image data is made the conversion process of activity self-adaptation interlacing-line by line under the situation of interlace signal view data increased the weight of the conversion degree at input image data.

Moreover, each OS parameter is stored in separately the OS table storer (ROM) 1131～1138 that is provided with respectively, but each OS parameter is deposited in the different table district that also can be formed in single OS table storer (ROM) respectively, and according to switching signal from control CPU112E, switch the list area of reference adaptively, thereby switch and selection OS parameter, obtain and increase the weight of transform data.

Again, as indicated above, OS table storer (ROM) 1131～1138 can be under video data be 8 the situation of 256 gray levels, maintenance is to the OS parameter (measured value) of whole 256 gray levels, but also but configuration example is only stored 9 * 9 OS parameters (measured value) that 9 of per 32 gray levels are represented gray scale as shown in figure 21 like that, the transform data that increases the weight of to other gray scale is then obtained from above-mentioned measured value with computings such as linear interpolations, thereby suppresses the memory capacity of OS table storer (ROM) 1131～1138.

Moreover temperature sensor 120 preferably is located at it in LCD panel 117 according to its original purpose, but this difficulty structurally, thereby the position that is arranged on as far as possible near LCD panel 117 gets final product.And temperature sensor 120 is not limited to 1, can be a plurality ofly, and it is corresponding with each position of LCD panel 120 that it is configured to.When a plurality of temperature sensor 120 was set, the value that the testing result to each temperature sensor 120 can be averaged also can change testing result big, some temperature sensors 120 as the temperature detection data as the temperature detection data.

Here, as shown in Figure 9, according to switching from the temperature detection data of temperature sensor 120 and showing storer (ROM) 1131～1138 with reference to each OS.Wherein, make temperature in the device with for example≤15 ℃,＞15 ℃ and≤25 ℃,＞25 ℃ and≤35 ℃,＞4 grades of temperature ranges 35 ℃ the time are corresponding, but also can have with≤3 grades or 〉=5 grades the corresponding OS parameter of temperature range.

Utilize Fig. 8 to illustrate that indication switches and select the composition of the control CPU112E of each OS table storer (ROM) 1131～1138 according to the temperature detection data of such temperature sensor 120.That is, has the transform method specifying part 112k of threshold value judegment part 112a, control signal efferent 112c, interlacing-line by line as the control CPU112E of control module.(112E or CPU112F～112G) the interior member of setting forth later can be interior mutual different hardware blocks such as being located at each CPU to these control CPU, but in the following embodiment, be control CPU etc. by carrying out the functional block that the program deposited in the unshowned memory block is implemented.Storage part in these members can be the storer in the control CPU, but also can be the storer of control CPU outside.

The transform method specifying part 112k of interlacing-line by line should be to the signal of transform method of the interlacing of the interlacing-indication of transform method, and the output line by line decision of interlacing-transformation component 111 indications line by line-line by line with above-mentioned the whole bag of tricks decision.

When threshold value judegment part 112a receives from the temperature detection data of temperature sensor 120, it is compared with regulation switching temperature (threshold temperature) Th1 that for example is predetermined, Th2, Th3.Here, switching temperature (threshold temperature) Th1, Th2, Th3 are for example 15 ℃, 25 ℃, 35 ℃, and in the output unit temperature≤15 ℃ or＞15 ℃ and≤25 ℃ or＞25 ℃ and≤35 ℃ or＞35 ℃ differentiation result.

Control signal efferent 112c output meets the differentiation result's of transform method of the interlacing of interlacing-transform method specifying part 112k appointment line by line-line by line and threshold value judegment part 112a switch-over control signal.Promptly, the differentiation that receives transform method of the interlacing of interlacing-transform method specifying part 112k appointment line by line-line by line and threshold value judegment part 112a is as a result the time, according to this interlacing-line by line transform method and temperature detection data, with switch-over control signal indication some with reference in the OS table storer (ROM) 1131～1138.

At this moment, control signal efferent 112c is taken as " 0 " when for example input image data being made the conversion process of activity self-adaptation interlacing-line by line by combination, be taken as the recognition data of " 1 " when only utilizing intrafield interpolation to handle these data are made conversion process and be " 00 "≤15 ℃ the time for example from the temperature detection data of temperature sensor 120,＞15 ℃ and≤be " 01 " 25 ℃ the time,＞25 ℃ and≤be " 10 " 35 ℃ the time, in the time of＞35 ℃, be the recognition data of " 11 ", can show in the storeies (ROM) 1131～1138 and carry out the conversion that increases the weight of of view data with reference to 8 OS with 3 switch-over control signal indications.

In this composition, as indicated above, when for example making the conversion process of activity self-adaptation interlacing-line by line by the transform method specifying part 112k of interlacing-line by line decision, the transform method specifying part 112k of interlacing-line by line is to the signal of conversion process of interlacing-transformation component 111 output indicative of active self-adaptation interlacing line by line-line by line.At this moment, the transformation component 111 of interlacing-line by line carries out the conversion process of activity self-adaptation interlacing-line by line, produces the simulation progressive signal, this signal is input to increases the weight of transformation component 114E.

At this moment, control CPU112E is to as the conversion process that increases the weight of that increases the weight of the transformation component 114E indication input image data after to the conversion process of activity self-adaptation interlacing-line by line that increases the weight of converter unit.In the case, control signal efferent 112c according to from the temperature detection data of threshold value judegment part 112a be≤15 ℃ or＞15 ℃ and≤25 ℃ or＞25 ℃ and≤35 ℃ or＞35 ℃ differentiation result, output select and indication when input image data is made the conversion process of activity self-adaptation interlacing-line by line the OS of reference show the switch-over control signal of the some usefulness in the storer (ROM) 1131～1134.

Here, be designated as with reference to OS table storer (ROM) 1131 for example≤15 ℃ the time from the temperature detection data of temperature sensor 120,＞15 ℃ and≤be designated as 25 ℃ the time with reference to OS table storer (ROM) 1132,＞25 ℃ and≤be designated as with reference to OS table storer (ROM) 1134 when being designated as 35 ℃ the time with reference to 1133,＞35 ℃ of OS table storeies (ROM).

Then, accept this indication increase the weight of comparative result (gray scale migration) that transformation component 114E from the OS of described selection and indication table storer (ROM) 1131～1134 reads the M-1 frame input image data of depositing with the M frame input image data (current data) and the frame memory 115 of demonstration now (past data) corresponding (promptly, by this comparative result appointment) the OS parameter, and obtain according to the OS parameter that this is read and to increase the weight of operational data, supply with liquid-crystal controller 116.Thereby when input image data made the conversion process of activity self-adaptation interlacing-line by line, even the temperature inversion of LCD panel 117, also compensate the optical response (comprising temperature dependent properties) of LCD panel 117, the high quality graphic that carries out noresidue image and hangover shows.

Otherwise, during the conversion process only selecting to handle by the transform method specifying part 112k of interlacing-line by line based on intrafield interpolation, the signal of the conversion process that the transform method specifying part 112k of interlacing-line by line only handles based on intrafield interpolation the transformation component 111 output indications of interlacing-line by line.At this moment, the transformation component 111 of interlacing-line by line carries out the conversion process of the conversion process activity self-adaptation interlacing only handled based on intrafield interpolation-line by line, produces the simulation progressive signal, this signal is input to increases the weight of transformation component 114E.

At this moment, as indicated above, control signal efferent 112c according to from the temperature detection data of threshold value judegment part 112a be≤15 ℃ or＞15 ℃ and≤25 ℃ or＞25 ℃ and≤35 ℃ or＞35 ℃ differentiation result, output is selected and indication when only utilizing intrafield interpolation to handle input image data made conversion process the OS of reference show the switch-over control signal of the some usefulness in the storer (ROM) 1135～1138.

Here, be designated as with reference to OS table storer (ROM) 1135 for example≤15 ℃ the time from the temperature detection data of temperature sensor 120,＞15 ℃ and≤be designated as 25 ℃ the time with reference to OS table storer (ROM) 1136,＞25 ℃ and≤be designated as with reference to OS table storer (ROM) 1138 when being designated as 35 ℃ the time with reference to 1137,＞35 ℃ of OS table storeies (ROM).

Then, accept this indication increase the weight of comparative result (gray scale migration) that transformation component 114E from the OS of described selection and indication table storer (ROM) 1135～1138 reads the M-1 frame input image data of depositing with the M frame input image data (current data) and the frame memory 115 of demonstration now (past data) corresponding (promptly, by this comparative result appointment) the OS parameter, and obtain according to the OS parameter that this is read and to increase the weight of operational data, supply with liquid-crystal controller 116.

Here, when only utilizing the intrafield interpolation processing that input image data is made conversion process, as indicated above, OS parameter value in the OS table storer (ROM) 1135～1138 is shown OS parameter value in the storer (ROM) 1131～1134 less than OS, even thereby the temperature variation of LCD panel 117, also compensate the optical response (comprising temperature dependent properties) of LCD panel 117, the high quality graphic that carries out noresidue image and hangover shows.

Like this, in the embodiment 5, reference met from a plurality of OS table storeies (ROM) 1131～1134 of the temperature detection data of temperature sensor 120 and deposits a plurality of OS table storeies (ROM) 1135～1138 from the temperature detection data of temperature sensor 120 of meeting of reference when only utilizing intrafield interpolation to handle input image data made conversion process when setting was deposited input image data made the conversion process of activity self-adaptation interlacing-line by line, and according to temperature in the device that obtains to the transform method of the interlacing of input image data-line by line with by temperature detection data from temperature sensor 120, switch and with reference to one in the OS table storer (ROM) 1131～1138, carry out the conversion that increases the weight of to view data, so can to view data implement meet temperature in transform method of interlacing-line by line and the device suitably increase the weight of conversion process, show thereby can carry out high-quality image.

Embodiment 6

Figure 10 be when input image data being shown being progressive signal and the situation of input image data shared OS parameter when being interlace signal under the figure of embodiment 6.Figure 11 is the figure that the detailed condition of the control CPU of explanation Figure 10 is used.Figure 12 is explanation according to the figure of action usefulness that temperature in transform method of the interlacing of input image data-line by line and the device is switched and selected the OS table storer (ROM) of Figure 10.

As shown in figure 10,4 OS table storeies (ROM) 1131～1134 that also can reference when for example input image data being made the conversion process of activity self-adaptation interlacing-line by line in the OS table storer (ROM) 1131～1138 shown in Figure 7 when embodiment 6 is made and only utilized intrafield interpolation to handle input image data made conversion process, and according to temperature in the device of transform method of interlacing-interlacing of transformation component 111 line by line-line by line and temperature sensor 120, switch and, carry out the conversion process that increases the weight of view data with reference to one in the OS table storer 1131～1134.

Like this, according to the detection data of temperature in transform method of the interlacing of input image data-line by line and the device being switched and the control CPU112F of the OS table storer (ROM) 1131～1134 of control reference forms composition shown in Figure 11.That is, control CPU112F has the transform method specifying part 112k of threshold value judegment part 112a, control signal efferent 112b, arithmetic expression storage part 112e, operational part 112f, interlacing-line by line.

Threshold value judegment part 112a implements the computing gained to operational part 112f temperature data compares with regulation switching temperature (threshold temperature) Th1, Th2, the Th3 that are predetermined.Here, switching temperature (threshold temperature) Th1, Th2, Th3 are for example 15 ℃, 25 ℃, 35 ℃.Control signal efferent 112b produces indicating the switch-over control signal of selecting and showing a usefulness in the storer (ROM) 1131～1134 with reference to OS as the transformation component 114F that increases the weight of that increases the weight of converter unit according to the comparative result of threshold value judegment part 112a.

Deposit the arithmetic expression of the temperature detection data of temperature sensor 120 being added and subtracted the setting etc. of the transform method of each interlacing-line by line decision among the arithmetic expression storage part 112e to input image data.Operational part 112f is according to the transform method of the interlacing of the transform method specifying part 112k of interlacing-line by line decision-line by line, uses the arithmetic expression of reading from arithmetic expression storage part 112e that the temperature detection data of temperature sensor 120 are implemented correction calculation.

In this composition, as shown in Figure 12, when input image data is made the conversion process of activity self-adaptation interlacing-line by line, if temperature in the temperature sensor 120 detected devices≤switching temperature Th1 (=15 ℃) is then controlled CPU112F and is indicated its selection and show storer (ROM) 1131 with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1131 deposits is carried out input image data with OS.

If temperature in switching temperature Th1 (=15 ℃)＜temperature sensor 120 detected devices≤switching temperature Th2 (=25 ℃) is then controlled CPU112F and is indicated its selection and show storer (ROM) 1132 with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1132 deposits is carried out input image data with OS.

If temperature in switching temperature Th2 (=25 ℃)＜temperature sensor 120 detected devices≤switching temperature Th3 (=35 ℃) is then controlled CPU112F and is indicated its selection and show storer (ROM) 1133 with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1133 deposits is carried out input image data with OS.

If temperature in switching temperature Th3 (=35 ℃)＜temperature sensor 120 detected devices is then controlled CPU112F and is indicated its selection and show storer (ROM) 1134 with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1134 deposits is carried out input image data with OS.

On the other hand, input image data only done under the situation of the conversion process handled based on intrafield interpolation, as indicated above, when interlace signal being made the conversion process of interlacing-line by line with the transform method of this interlacing-line by line, noise of locating to produce for image outline portion etc. and zigzag fluctuating etc. are not subjected to too increasing the weight of, and what need make view data when only utilizing intrafield interpolation to handle input image data made conversion process increases the weight of conversion degree this degree when input image data being made the conversion process of activity self-adaptation interlacing-line by line.Therefore, increase the weight of degree in order to proofread and correct this, operational part 112f outputs to threshold value judegment part 112a with it after using the arithmetic expression of reading from arithmetic expression storage part 112e that the temperature detection data of temperature sensor 120 are implemented the computing (here for for example adding 5 ℃) of regulation.The additive operation here is not limited to add 5 ℃, also can add 4 ℃ or littler or add 6 ℃ or bigger, can set arbitrarily according to the optical response of LCD panel 117.

Therefore, when only utilizing the intrafield interpolation processing that input image data is made conversion process, if temperature in the temperature sensor 120 detected devices≤10 ℃, then control CPU112F and indicate its selection and show storer (ROM) 1131 with reference to OS to increasing the weight of transformation component 114F.So, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1131 deposits is carried out input image data with OS.

If temperature in 10 ℃＜temperature sensor, the 120 detected devices≤20 ℃ is then controlled CPU112F and is indicated its selection and show storer (ROM) 1132 with reference to OS increasing the weight of transformation component 114F.So, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1132 deposits is carried out input image data with OS.

If temperature in 20 ℃＜temperature sensor, the 120 detected devices≤30 ℃ is then controlled CPU112F and is indicated its selection and show storer (ROM) 1133 with reference to OS increasing the weight of transformation component 114F.So, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1133 deposits is carried out input image data with OS.

If temperature in the temperature sensor 120 detected devices＞30 ℃ is then controlled CPU112F and is indicated its selection and show storer (ROM) 1134 with reference to OS increasing the weight of transformation component 114F.So, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1134 deposits is carried out input image data with OS.

Like this, in the embodiment 6, the temperature detection data of temperature sensor 120 are implemented the computing of regulation after, with its with the regulation switching temperature Th1 that is predetermined, Th2, Th3 relatively, and produce and switch the switch-over control signal that the OS parameter is used.Promptly, when input image data being made the conversion process of activity self-adaptation interlacing-line by line and when only utilizing intrafield interpolation to handle input image data made conversion process, appropriate change switches and selects the switching temperature (temperature in the device) of the OS table storer (ROM) 1131～1134 of reference, thereby can both implement increase the weight of conversion process by shared OS table storer (ROM) 1131～1134 to the input image data of doing interlacing-conversion line by line with the transform method of arbitrary interlacing-line by line, with each interlacing to input image data-transform method is provided with respectively and compares when OS shows storer (ROM) line by line, can suppress the memory capacity of storer.

Again, under the identical temperature conditions, during conversion process that input image data is only done to handle based on intrafield interpolation, the OS parameter of the OS parameter that usable levels is used when input image data being made the conversion process of activity self-adaptation interlacing-is line by line carried out the conversion that increases the weight of of view data, thereby false signals such as flicker noise of locating to produce at image outline etc. can suppress only to utilize intrafield interpolation to handle and do the conversion process of interlacing-line by line time the and zigzag fluctuating are increased the weight of and make the picture quality variation.

Moreover, the a plurality of OS parameters corresponding with each temperature range are stored in the OS table storer (ROM) 1131～1134 that is provided with respectively separately, but each OS parameter is deposited in the different table district that also can be formed in single OS table storer (ROM) certainly respectively, and according to switching signal from control CPU112F, switch the list area of reference adaptively, thereby switch and selection OS parameter, obtain and increase the weight of transform data.

Again, as indicated above, OS table storer (ROM) 1131～1134 can be under video data be 8 the situation of 256 gray levels, maintenance is to the OS parameter (measured value) of whole 256 gray levels, but also but configuration example is only stored 9 * 9 OS parameters (measured value) that 9 of per 32 gray levels are represented gray scale as shown in figure 21 like that, the transform data that increases the weight of to other gray scale is then obtained from above-mentioned measured value with computings such as linear interpolations, thereby suppresses the memory capacity of OS table storer (ROM) 1131～1134.

Embodiment 7

Figure 13 illustrates the figure that control CPU as Figure 10 has another embodiment 7 when forming.

As shown in figure 13, the control CPU112G of embodiment 7 has the threshold temperature deposit data 112i of portion of the data of the regulation switching temperature (threshold temperature) of depositing the decision of the transform method of each interlacing to input image data-line by line, should represent interlacing-interlacing of the signal of transform method line by line-preparation transform method specifying part 112k of determining to the transform method of the interlacing of interlacing-transformation component 111 indications line by line-line by line and output with the decision of above-mentioned the whole bag of tricks, to the switching temperature Th1 that reads from the threshold temperature deposit data 112i of portion according to the transform method of the interlacing of the transform method specifying part 112k of interlacing-line by line decision-line by line, Th2, the threshold value judegment part 112j that the temperature detection data of Th3 and temperature sensor 120 compare, comparative result according to this threshold value judegment part 112j produces the control signal efferent 112b that makes its selection and show the switch-over control signal of a usefulness in the storer (ROM) 1131～1134 with reference to OS to increasing the weight of transformation component 114F.

In this composition, when input image data is made the conversion process of activity self-adaptation interlacing-line by line, if temperature in the temperature sensor 120 detected devices≤switching temperature Th1 (=15 ℃) is then controlled CPU112G and is indicated its selection and show storer (ROM) 1131 with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1131 deposits is carried out input image data with OS.

If temperature in switching temperature Th1 (=15 ℃)＜temperature sensor 120 detected devices≤switching temperature Th2 (=25 ℃) is then controlled CPU112G and is indicated its selection and show storer (ROM) 1132 with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1132 deposits is carried out input image data with OS.

If temperature in switching temperature Th2 (=25 ℃)＜temperature sensor 120 detected devices≤switching temperature Th3 (=35 ℃) is then controlled CPU112G and is indicated its selection and show storer (ROM) 1133 with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1133 deposits is carried out input image data with OS.

If temperature in switching temperature Th3 (=35 ℃)＜temperature sensor 120 detected devices is then controlled CPU112G and is indicated its selection and show storer (ROM) 1134 with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1134 deposits is carried out input image data with OS.

On the other hand, only utilizing intrafield interpolation to handle to input image data does under the situation of conversion process input image data, as indicated above, when only utilizing intrafield interpolation to handle interlace signal made the conversion process of interlacing-line by line, the noise of locating to produce for image outline portion etc. and zigzag fluctuating etc. are not subjected to too increasing the weight of, and what need make view data under the same terms increases the weight of conversion degree this degree when input image data being made the conversion process of activity self-adaptation interlacing-line by line.Therefore, increase the weight of degree in order to proofread and correct this, when only utilizing the intrafield interpolation processing that input image data is made conversion process, the switching temperature Th ' 1 that reads from the threshold temperature deposit data 112i of portion of threshold value judegment part 112j (＜Th1), Th ' 2 (＜Th2), Th ' 3 (＜Th3) carry out the relatively judgement of the temperature detection data of temperature sensor 120, and its result is outputed to control signal efferent 112b.

Therefore, when only utilizing the intrafield interpolation processing that input image data is made conversion process, if temperature≤Th ' 1 (=10 ℃) in the temperature sensor 120 detected devices then controls CPU112G and indicates its selection and show storer (ROM) 1131 with reference to OS increasing the weight of transformation component 114F.So, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1131 deposits is carried out input image data with OS.

If temperature≤Th ' 2 (=20 ℃) in Th ' 1 (=10 ℃)＜temperature sensor 120 detected devices then controls CPU112G and indicates its selection and show storer (ROM) 1132 with reference to OS increasing the weight of transformation component 114F.So, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1132 deposits is carried out input image data with OS.

If temperature≤Th ' 3 (=30 ℃) in Th ' 2 (=20 ℃)＜temperature sensor 120 detected devices then controls CPU112G and indicates its selection and show storer (ROM) 1133 with reference to OS increasing the weight of transformation component 114F.So, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1133 deposits is carried out input image data with OS.

If temperature＞Th ' 3 (=30 ℃) in the temperature sensor 120 detected devices then controls CPU112G and indicates its selection and show storer (ROM) 1134 with reference to OS increasing the weight of transformation component 114F.So, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 1134 deposits is carried out input image data with OS.

Like this, embodiment 7 is by carrying out the relatively judgement of the temperature detection data of temperature sensor 120 with the switching temperature (threshold temperature) of the transform method of each interlacing to input image data-line by line regulation, produce selecting the switching signal of OS table storer (ROM) 1134 usefulness that should reference.Promptly, when input image data being made the conversion process of activity self-adaptation interlacing-line by line and when only utilizing intrafield interpolation to handle input image data made conversion process, appropriate change switches and selects the switching temperature (temperature in the device) of the OS table storer (ROM) 1131～1134 of reference, thereby can both implement increase the weight of conversion process by shared OS table storer (ROM) 1131～1134 to the input image data of doing interlacing-conversion line by line with the transform method of arbitrary interlacing-line by line, with each interlacing to input image data-transform method is provided with respectively and compares when OS shows storer (ROM) line by line, can suppress the memory capacity of storer.

Embodiment 8

Figure 14 illustrates when input image data made the conversion process of activity self-adaptation interlacing-line by line and only utilizes intrafield interpolation to handle the figure of the embodiment 8 under the situation of a common sparing OS parameter when making conversion process.

As shown in figure 14, in the embodiment 8, when input image data being made the conversion process of activity self-adaptation interlacing-line by line and when only utilizing intrafield interpolation to handle to make conversion process OS table storer (ROM) 113c～113e of all shared and reference, the OS that OS table storer (ROM) 113a of reference when input image data made the conversion process of activity self-adaptation interlacing-line by line also is set and only utilizes intrafield interpolation to handle reference when input image data made conversion process shows storer (ROM) 113b, and constitute according to each interlacing-switching temperature of transform method regulation is switched and shown storer (ROM) 113a～113e with reference to these OS line by line, view data is implemented increased the weight of conversion.

Here, each special-purpose OS table storer (ROM) 113a and 113b deposit when for example being higher than normal temperature and are used for the OS parameter that view data increases the weight of conversion.According to whenever-and the switching temperature of the transform method of interlacing-line by line regulation switches and during with reference to OS table storer (ROM) 113a～113e, and the switch-over control signal that can be used to the control CPU112F (or 112G) that illustrates from Figure 11 (or Figure 13) in carries out.

In this composition, when input image data is made the conversion process of activity self-adaptation interlacing-line by line, if temperature in the temperature sensor 120 detected devices≤15 ℃ is then controlled CPU112F and is indicated its selection and show storer (ROM) 113c with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 113c deposits is carried out input image data with OS.

If temperature in 15 ℃＜temperature sensor, the 120 detected devices≤25 ℃ is then controlled CPU112F and is indicated its selection and show storer (ROM) 113d with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 113d deposits is carried out input image data with OS.

If temperature in 25 ℃＜temperature sensor, the 120 detected devices≤35 ℃ is then controlled CPU112F and is indicated its selection and show storer (ROM) 113e with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 113e deposits is carried out input image data with OS.

If temperature in 35 ℃＜temperature sensor, the 120 detected devices is then controlled CPU112F and is indicated its selection and show storer (ROM) 113a with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 113a deposits is carried out input image data with OS.

On the other hand, when only utilizing the intrafield interpolation processing that input image data is made conversion process, if temperature in the temperature sensor 120 detected devices≤10 ℃ is then controlled CPU112F and is indicated its selection and show storer (ROM) 113c with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 113c deposits is carried out input image data with OS.

If temperature in 10 ℃＜temperature sensor, the 120 detected devices≤20 ℃ is then controlled CPU112F and is indicated its selection and show storer (ROM) 113d with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 113d deposits is carried out input image data with OS.

If temperature in 20 ℃＜temperature sensor, the 120 detected devices≤30 ℃ is then controlled CPU112F and is indicated its selection and show storer (ROM) 113e with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 113e deposits is carried out input image data with OS.

If temperature in 30 ℃＜temperature sensor, the 120 detected devices is then controlled CPU112F and is indicated its selection and show storer (ROM) 113b with reference to OS increasing the weight of transformation component 114F.Therefore, increase the weight of transformation component 114F and show the conversion process that increases the weight of that OS parameter that storer (ROM) 113b deposits is carried out input image data with OS.

Like this, in the embodiment 8, when input image data being made the conversion process of activity self-adaptation interlacing-line by line and when only utilizing intrafield interpolation to handle to make conversion process OS table storer (ROM) 113c～113e of all shared and reference, the special-purpose OS that special-purpose OS table storer (ROM) 113a of reference when input image data made the conversion process of activity self-adaptation interlacing-line by line also is set and only utilizes intrafield interpolation to handle reference when input image data made conversion process shows storer (ROM) 113b, and formation is according to each interlacing-switching temperature of transform method regulation (temperature in the device) is switched and shown storer (ROM) 113a～113e with reference to these OS line by line, carry out the conversion that increases the weight of, thereby can show storer (ROM) 113c～113e and implement the suitable conversion process that increases the weight of by shared OS view data.

Moreover, the a plurality of OS parameters corresponding with each temperature range are stored in OS table storer (ROM) 113a～113e that is provided with respectively separately, but each OS parameter is deposited in the different table district that also can be formed in single OS table storer (ROM) certainly respectively, and according to switching signal from control CPU112F (or 112G), switch the list area of reference adaptively, increase the weight of transformation parameter thereby switch and select, obtain and increase the weight of transform data.

Again, as indicated above, OS table storer (ROM) 113a～113e can be under video data be 8 the situation of 256 gray levels, maintenance is to the OS parameter (measured value) of whole 256 gray levels, but also but configuration example is only stored 9 * 9 OS parameters (measured value) that 9 of per 32 gray levels are represented gray scale as shown in figure 21 like that, the transform data that increases the weight of to other gray scale is then obtained from above-mentioned measured value with computings such as linear interpolations, thereby suppresses the memory capacity of OS table storer (ROM) 113a～113e.

Embodiment 9

Illustrate that according to Figure 15 to Figure 22 another embodiment of the present invention is as follows.Promptly, the image display device of present embodiment (display device) is no matter can do interlacing-conversion line by line (progressive scanning conversion) with a plurality of transform methods, can increase the weight of the vision signal gray scale migration to pixel when doing conversion with arbitrary method by suitable degree, making raising of pixel response speed and video quality improve both can both realize.

As shown in figure 16, the display board 11 of described image display device 1 has to comprise and is configured to rectangular pixel PIX (1,1)～PIX (n, the data signal wire driving circuit 3 of the data signal line SL1～SLn of pixel battle array 2 m), driving pixel battle array 2 and the scan signal line drive circuit 4 that drives the scan signal line GL1～GLm of pixel battle array 2.Also be provided with in the image display device 1 control circuit 12 and the modulation of two driving

circuits

3 and 4 supply control signals are supplied with the vision signal of described control circuit 12 to increase the weight of described each pixel PIX (1,1)～(n, gray scale migration m) and while are transformed into interlace signal the signal processing part 21 of progressive signal to PIX when showing interlace signal.These circuit utilize the power supply of power circuit 13 to carry out work.

Below, before the detailed composition of explanation signal processing part 21, illustrate that the overall schematic of image display device 1 is formed and action.For convenience of description, for example i data signal line SLi like that only when the needs assigned position, marks locative numeral or English alphabet, omits locative character mark in the time of needn't assigned position or during general designation.

Many (being the m root under this situation) scan signal line GL1～GLm that described pixel battle array 2 has many (under this situation for n root) signal line SL1～SLn and intersects with each signal line SL1～SLn respectively, if i is 1 to n arbitrary integer, j is 1 to m arbitrary integer, then the combination of each data signal line SLi and scan signal line GLj be provided with pixel PIX (i, j).Under the situation of present embodiment, (i j) is configured in the part of surrounding with adjacent 2 single data signal wire SL (i-1), SLi and adjacent 2 scan signal line GL (j-1), GLj with each pixel PIX.

As an example, illustrate when image display device 1 is the situation of liquid crystal indicator of TFT (thin film transistor (TFT)), described pixel PIX (i, j) for example as shown in Figure 17, as on-off element, have grid connect the field effect transistor SW that scan signal line GLj and drain electrode connect data signal line SLi (i, j) and an electrode connect this field effect transistor SW (i, pixel capacitance Cp j) (i, j).(i, other end j) connect each pixel PIX with pixel capacitance Cp ... shared common electrode line.Described pixel capacitance Cp (i, j) comprise liquid crystal capacitance CL (i, j) and as required the auxiliary capacitor Cs that adds (i, j).

Described pixel PIX (i, j) in, when selecting scan signal line GLj, field effect transistor SW (i, j) conducting, with the voltage that applies on the signal line SLi be applied to pixel capacitance Cp (i, j).On the other hand, the selection phase of this scan signal line GLj finishes, with field effect transistor SW (i, pixel capacitance Cp during j) blocking (i, the voltage when j) maintenance and continuity are blocked.Here, the transmissivity of liquid crystal and reflectivity are because of to liquid crystal capacitance CL (i, j) correspondence of data and changing.Therefore, when selecting scan signal line GLj, signal line SLi applied meet that ((i, show state j) changes according to video data then to make this pixel PIX for i, the voltage of video data j) to this pixel PIX.

The described liquid crystal indicator of present embodiment, the liquid crystal cells that adopts vertical alignment mode is as liquid crystal cells, just adopt when not applying voltage liquid crystal molecule to substrate approximate vertical orientation and liquid crystal molecule with to pixel PIX (i, j) liquid crystal capacitance CL (i, j) apply the liquid crystal cells that voltage deviation forms inclination vertical orientatedly, wherein use this liquid crystal cells with normal black pattern when data voltage (not form the black pattern that shows).

No matter whether described pixel PIX liquid crystal display cells, Zong scan signal line drive circuit 4 right scan signal line GL1～GLm shown in Figure 16 export the signal whether expression such as voltage signal for example selects the phase.Whether timing signal change output expressions such as clock signal GCK that scan signal line drive circuit 4 is also supplied with according to for example control circuit 12 and starting impulse signal GSP select the scan signal line GLj of the signal of phase.Thereby scan signal line drive circuit 4 can be selected each scan signal line GL1～GLm successively by the timing that is predetermined.

Signal line drive circuit 3 passes through timing each pixel PIX to importing with time division way in accordance with regulations ... video data sampling, respectively it is used as vision signal and extracts.Data signal wire driving circuit 3 also by each corresponding pixel PIX of each the data signal line SL1～SLn couple of scan signal line GLj that is selecting with scan signal line drive circuit 4 (1, j)～PIX (n, j) output signal of output video data separately.

Data signal wire driving circuit 3 determines the output timing of described sampling timing and output signal according to timing signals such as clock signal SCK that imports from control circuit 12 and starting impulse signal SSP.

On the other hand, and each pixel PIX (1, j)～PIX (n, j) during the corresponding scan signal line GLj of selection itself, according to the output signal of supplying with own corresponding signal line SL1～SLn, adjust brightness when luminous and transmissivity etc., to determine brightness own.

Here, scan signal line drive circuit 4 is selected sweep trace GL1～GLm successively.Therefore, can to whole pixel PIX of pixel battle array 2 (1, j)～PIX (n j) sets the brightness that video data is separately represented, and can update displayed to the image of pixel battle array 2.

The image display device 1 of present embodiment constitutes can be when video signal source S0 output interlaced video signal DATI, be transformed into progressive signal after, show.At this moment, the vision signal DATI that supplies with signal processing part 21 from video signal source is divided into many (for example 2) with 1 frame, is that unit transmits with this also simultaneously.

Specifically, when video signal source S0 transmits vision signal DATI by video signal cable VL to the signal processing part 21 of image display device 1, after transmitting the video data of whole certain F (k) usefulness, transmit the video data of next F (k+1) usefulness etc., can transmit the video data of each usefulness with time division way.

Described field comprises many horizontal line, and video signal source S0 is undertaken for example transmitting all video data DI (1 of certain horizontal line L (i) usefulness among certain F (k) by described video signal cable VL, j, k)～DI (n, j, k) after, transmit the video data DI (1 of horizontal line (for example L (the j+2)) usefulness that then transmits, j+2, k)～DI (n, j+2, k) etc., can transmit the video data that each horizontal line is used with time division way.Hereinafter, will be for example among certain F (k) all videos data DI of certain horizontal line L (j) usefulness be designated as DI ( ^*, j, k), according to like this, with " ^*" the whole situation of mark expression.

In the present embodiment, constitute 1 frame, the horizontal line video data of even number line in each horizontal line of even field transmission formation 1 frame by 2.Transmit the horizontal line video data of odd-numbered line in each frame at odd field.

Described video signal source S0 transmit 1 horizontal line video data DI ( ^*, j in the time of k), also drives described video signal cable VL with time division way, transmits each video data successively by predefined procedure.

On the other hand, as shown in figure 15, the signal processing part 21 of present embodiment have the conversion process portion (I/P conversion process portion) 31 of the interlacing that will be transformed into progressive-scan video signal DAT-line by line from the interlaced video signal DATI of input terminal T1 input, with the video data D of 1 frame share the vision signal DAT of these I/P conversion process portion 31 outputs ( ^*, ^*, k) video data D (i, j, k) and should supply with (i with this video data D, j, k) identical pixel PIX (i, j) and the video data D (i of the preceding frame FR (k-1) that reads from described frame memory 32, j, k-1) the video data D of modulation present frame FR (k) (i, j, k) with increase the weight of between the two gray scale migration and the correcting video data D2 (i after the output modulation, j, modulation treatment portion 33 k).To each pixel PIX (i, (i, j k) supply with control circuit 12 shown in Figure 16 as correcting video signal DAT2 to correcting video data D2 j); Control circuit 12 and data signal wire driving circuit 3 according to this correcting video signal DAT2 drive each pixel PIX (i, j).

In the above-mentioned composition, and the video data D of the 33 modulation present frame FR (k) of modulation treatment portion (i, j, k), with the gray scale migration of frame FR (k-1) before increasing the weight of to present frame FR (k).

For example, when preceding frame FR (k-1) moves to the driving of increasing property to the gray scale of present frame FR (k), the video data D (i of modulation present frame FR (k), j k), made move to this gray scale last time and increases the weight of, just present the video data D (i, j, gray scale k) that are higher than present frame FR (k); Then, correcting video data D2 after according to modulation of control circuit 2 and data signal wire driving circuit 3 (i, j, k) drive pixel PIX (i, j).For example, (i is in the time of j), as shown in figure 18 to drive pixel PIX by voltage signal, (i j) applies video data D (i, j, the voltage level V (i that k) presents that is higher than present frame FR (k) to 3 couples of pixel PIX of data signal wire driving circuit, j, and voltage level V2 k) (i, j, k).

Therefore, (i, intensity level T2 ratio j) apply voltage V, and (the intensity level T when k) gray scale being increased the weight of compares pixel PIX for i, j, sharply increases, and (i, j is near intensity level k) to arrive the video data D that meets described present frame FR (k) in the short time.

Otherwise during the migration of subtracting property driving gray scale, (i, j k), make to present video data D (i, j, gray scale k) that is lower than present frame FR (k) the video data D of modulation present frame FR (k); Then, correcting video data D2 after according to modulation of control circuit 2 and data signal wire driving circuit 3 (i, j, k) drive pixel PIX (i, j).Therefore, and pixel PIX (i, intensity level j) sharply reduces, and (i, j is near intensity level k) to arrive the video data D that meets described present frame FR (k) in the short time.

For example in the example of Figure 18, do not increase the weight of gray scale when migration, pixel PIX (i, intensity level j) in 1 frame period in the past among the frame FR (k-1) intensity level of indication (with D (i, j, k-1) Dui Ying intensity level TO (i, j, k)) changes to the intensity level of indication among the present frame FR (k) (with D (i, j, k) Dui Ying intensity level TO (i, j, k)); Otherwise, utilize and increase the weight of the gray scale migration, make intensity level in 1 frame period, change to the intensity level of indication.

Its result is when gray scale is moved, with ((i, composition j) is compared, and can improve the response speed of image display device 1 k) to drive pixel PIX for i, j according to the video data D of present frame FR (k).Therefore, the optical response of this image display device 1 can be compensated, the high-quality video of noresidue image and hangover can be shown in pixel battle array 2.

Moreover, the signal processing part 21 of present embodiment constitutes I/P conversion process portions 31 can do the I/P conversion with several different methods, and signal processing part 21 has the control part 34 that the gray scale migration of changing described modulation treatment portion 33 in linkage with the current transform method of being selected by this I/P conversion process portion 31 increases the weight of degree.

Therefore, image display device 1 can according to for example from the type of the vision signal of video signal source S0 and S/N than the picture quality of, user preferences or requirement etc., manually select suitable transform method automatically or by the user.When manually selecting suitable transform method to comprise to constitute Video processing to the vision signal of S/N ratio to make to show that noise is remarkable in the video by the user, the user utilizes and visually judges, and two I/P conversion process portions 41 that the user can set forth from behind and a side of 42 switch to the opposing party, select.I/P conversion process portion 41 is the handling parts of transform method of realization activity self-adaptation interlacing-line by line.I/P conversion process portion 42 is handling parts of the conversion only handled based on intrafield interpolation of video.

In the above-mentioned composition, the gray scale migration that control part 34 and the transform method of I/P conversion process portion 31 are supplied with described modulation treatment portion 33 in linkage increases the weight of degree, thereby no matter the I/P transform method of I/P conversion process portion 31 is any transform methods, modulation treatment portion 33 can increase the weight of the gray scale migration with suitable degree.As a result, pixel response speed improve and the video quality of pixel battle array 2 demonstrations improve both can both be accomplished.

Further describe, then described control part 34 is for example to determine the I/P transform method according to user's indication decision or according to the interlaced video signal of current input with the mode of preordering method decision, to I/P conversion process portion 31 these methods of indication, also modulation handling part 33 designators should moving, the gray scale of I/P transform method are increased the weight of degree simultaneously.

Indication as the user, control part 34 can be accepted for example setting indication of I/P transform method itself, also can accept the selection indication in input video source for example, the setting indication of video display mode etc. and preestablish with related each of described I/P transform method and set indication, and set indicative of settings I/P transform method according to this.

Control part 34 also can for example be predetermined the S/N of staggered scanning incoming video signal than evaluation method and the storage I/P transform method corresponding with each evaluation result, or the S/N that makes the staggered scanning incoming video signal than and corresponding with it respectively I/P transform method have corresponding relation ground and store etc., and select some I/P transform methods according to the size of the S/N ratio of the interlaced video signal of current input.Determining method and described evaluation method as the I/P transform method, can enumerate for example according to known noise detecting method, go out noisiness from video signal detection, thereby after detecting the S/N ratio, with this S/N than with predetermined threshold relatively and estimate, determine I/P transform method etc. automatically according to comparative result.

The size of the activity that can comprise according to the interlaced video signal of current input is selected some I/P transform methods again.The judgement of described activity size in 1 picture to each pixel actual detected and to judge video movable or static.There are various ways in this detection method, but the most basic be to use the corresponding video data of same pixel of going up at least 2 adjacent fields with the time, and difference between each brightness between them is thought of as mobility, if difference is greater than certain certain threshold value, then be judged as live image, promptly activity is big.

On the other hand, I/P conversion process portion 31 has the 1st and the 2I/P conversion process portion 41 that comprise as I/P with mutually different transform methods and 42 and select the go forward side by side selector switch 43 of line output of a side of these two I/P conversion process portions 41 and 42 according to the indication of described control part 34 in composition shown in Figure 15.

For example, during the vision signal of input NTSC (U.S.'s National Television System Committee) broadcast system, I/P conversion process portion 31 produces the progressive-scan video signal DAT of 60 frame/seconds from the vision signal DATI of 60/second (30 frame/seconds).

The transform method that 1I/P conversion process portion 41 usefulness of present embodiment are called interpolation between the field etc. is from doing I/P conversion (activity self-adaptation interlacing-conversion line by line) and being extracted each video data by the interlaced video signal DATI of input terminal T1 input, judge being correlated with between each, simultaneously also when relevant degree is preset range, compensate the activity between each the video, thereby can produce progressive-scan video signal.

This transform method produces progressive-scan video signal according to a plurality of video data, thereby can correctly carry out correlated judgment and movement compensation the time, the essence exploring degree of vision signal is improved, compare when not carrying out correlated judgment with movement compensation, can show high-quality video toward pixel battle array 2, especially show and to reproduce the live image of nature activity.

On the other hand, 2I/P conversion process portion 42 usefulness for example are called Simulation with I/P conversion or the transform method that extraordinarily waits of row is done the I/P conversion.Be called Simulation with I/P conversion or the transform method that extraordinarily waits of row and extract each video data from interlaced video signal DATI by input terminal T1 input, with for example work as certain horizontal line L (i) that the front court comprises video data DI ( ^*, j, k) be used as next horizontal line L (j+1) of frame video data DI ( ^*, j+1, k) output, or to 2 horizontal line L (j) of current field transformation and the video data of L (j 10) (DI (i for example, j, k) and DI (i, j+2, k)) be averaged, and produce video data (DI (i, the j+1 for example of the horizontal line L (j+1) between described two horizontal line, k)=and DI (i, j, k)-DI (i, j+2, k) }/2+DI (i, j+2, k)), or data in the field are weighted and are averaged, thereby carry out the I/P conversion.Described I/P conversion is called the conversion of only handling based on intrafield interpolation (the whole pixels that constitute 1 picture are made intrafield interpolation to be handled), under the situation of rest image, can improves vertical exploring degree.

Here, as mentioned above, above-mentioned 1I/P conversion process portion 41 uses the sweep trace window portion of correlated judgment and movement compensation, if can correctly carry out these runnings, then can show the high-quality video, mistaken correlated judgment or mistaken when compensating versatilely, the higher hamonic wave noise may be significantly.

Otherwise, 2I/P conversion process portion 42 does not carry out correlated judgment and movement compensation between the field, the duplicating of data, an average or weighted mean in utilizing, produce progressive-scan video signal DAT, thereby space exploring degree reduces, and can show the inapparent video of above-mentioned higher hamonic wave noise, but each frame is located to produce in rest image profile portion etc. and non-existently among the original video signal DATI non-ly wished that gray scale (brightness) changes (migration), form flicker, display quality is descended.

Therefore, when doing the I/P conversion by 1I/P conversion process portion 41, under the significant situation of higher hamonic wave noise, can do the I/P conversion, show inapparent video in the higher hamonic wave noise ratio 1I/P conversion process portion 41 toward pixel battle array 2 by utilizing 2I/P conversion process portion 42.

But, 2I/P conversion process portion 42 only according to when the video data DI of front court ( ^*, ^*, k) produce 1 frame share video data D ( ^*, ^*, k), thereby compare with the composition that produces progressive-scan video signals with 1I/P conversion process portion 41, be difficult to accurately produce the vision signal that does not comprise when the front court to pixel PIX, produce the possibility height that glimmers on the profile portion.Again, such when for example showing rest image, before among the interlaced video signal DATI between frame and the present frame when making comparisons almost under the situation of indifference with the corresponding video data of identical pixel, to producing the gray scale migration change back and forth of non-hope in the activity of this pixel PIX indication, may make the user of image display device 1 regard this gray scale migration as flicker.

Below, as an example, the composition that work only duplicates is described.That is, in the example shown in Figure 19, show the casket of another gray scale (for example 64) in the background of certain gray scale (for example 196).At this moment, as near the district A the upper end of casket, along near the zone the edge of horizontal line, when watching by whole 1 frame that constitutes by odd field and even field, shown in A0 among the figure, with certain horizontal line (for example j is capable) is the border, and the gray scale (196) that is higher than the horizontal line of this row is different with the gray scale (64) that is lower than the horizontal line of this row with 196 gray scales of this horizontal line.

But vision signal DATI is an interlace signal, thereby video data is divided into even field and odd field transmits in described 1.Here, if above-mentioned j behavior odd-numbered line, then the j-2 in each horizontal line shown in the above-mentioned A0 of odd field F (k) transmission is capable, j is capable, j+2 is capable ... and 2I/P conversion process portion 42 according to the video data of these horizontal line to carrying out interpolation between horizontal line, j-1 is capable, j+1 is capable thereby produce, shown in A1 among the figure.

Produce the situation of the identical horizontal line of gray scale and the horizontal line that becomes benchmark (j-2 is capable etc.) (j-1 is capable etc.) shown in the figure by interpolation.On the other hand, j-2 in each horizontal line shown in the above-mentioned A0 of even field F (k+1) transmission is capable, j+1 is capable ... and to carrying out interpolation between horizontal line, j is capable, j+2 is capable thereby produce, shown in A2 among the figure according to the video data of these horizontal line in 2I/P conversion process portion 42.

As mentioned above, j is capable to be the boundary line, thereby is that unit is when watching, no matter gray scale (64) is fixing with the frame of interlaced video signal DATI, according to the variation that becomes the horizontal line of interpolation benchmark between each, with the field is that unit is watched, and produces response back and forth between then original gray scale (64) and another gray scale (196), thus each frame of progressive-scan video signal DAT, pixel PIX (i to this horizontal line L (j), j) video data D (i, j ^*) gray scale of indication repeats to increase (rise) and reduce (decay).

Above, data and produce the composition of image of 1 frame share and the situation that casket is done to show is an example in the duplicate field, be illustrated, but be not limited thereto, when only video data carries out interpolation in the use as 2I/P conversion process portion 42, every variation of originally static outline position, thus flicker noise (false signal) produced, or oblique line forms and presents zigzag rise and fall (bright dark ladder is poor).

The gray scale migration of live image is used as in flicker on the outline position that this is originally static, and when increasing the weight of the gray scale migration, this flicker is inevitable remarkable in user's eye, thereby the display quality of image display device is greatly reduced.

Like this, the I/P transformation results of 2I/P conversion process portion 42, make among the progressive-scan video signal DAT, the gray scale of every frame repeats to increase (rise) and subtracts (decay), but no matter be easy to generate during than 1I/P conversion process portion, when described modulation treatment portion 33 identical degree by with 1I/P conversion process portion 41 time increased the weight of the gray scale migration, the display quality that causes the gray scale migration too to increase the weight of to cause easily reduced.

At this point, when the control part 34 of present embodiment produces progressive-scan video signal DAT in 2I/P conversion process portion 42, control modulation treatment portion 33, the time gray scale migration when increasing the weight of degree less than 1I/P conversion process portion 41.That is the degree when, the modulation treatment portion 33 of present embodiment produces progressive-scan video signal DAT in 2I/P conversion process portion 42 by less than 1I/P conversion process portion 41 time increases the weight of the gray scale migration.Therefore, the display quality that too increases the weight of to cause of the flicker that produces in the inhibition rest image profile portion reduces, can be toward the higher video of pixel battle array 2 display qualities.

Especially, 41 another activity self-adaptation interlacing of 1I/P conversion process portion-when conversion process is done the I/P conversion to S/N than abundant high vision signal line by line, by carrying out the conversion that increases the weight of of view data, make liquid crystal pixel form the transmissivity of input image data regulation at the appointed time, the high quality graphic that afterimage and hangover can not take place shows.On the other hand, when 2I/P conversion process portion 42 utilizes the conversion process of only handling based on intrafield interpolation to do the I/P conversion, to increase the weight of the conversion degree less by making, can prevent that again this I/P conversion process from making non-that display image profile portion etc. locates to produce wish that flicker noise and zigzag fluctuating etc. too increase the weight of the picture quality variation that causes, optical response (comprising temperature dependent properties) that again can compensation pixel, the high quality graphic that carries out noresidue image and hangover shows.

Below, the composition example of modulation treatment portion 33 is described with reference to Figure 20.Promptly, modulation treatment portion 33 shown in Figure 20 has the video data D (i according to the present frame FR (k) of I/P conversion process portion 31 outputs, j, k) and the video data D (i of the preceding frame FR (k-1) of frame memory 32 output, j, k-1) increase the weight of the gray scale migration correcting value Q (i that degree is made decision and suitably stipulated for the situation of predetermined degree in the gray scale migration, j, k) correcting value operational part 51, and calculate and to increase the weight of the correcting value Q2 (i that obtains after the degree adjustment according to the gray scale migration of control part 34 indication, j, k) with the video data D (i of described present frame FR (k), j, k) result of addition and the result that will calculate are as correcting video data D2 (i, j, k) Shu Chu correcting video data operation portion 52.

The gray scale migration that the correcting value operational part 51 of present embodiment is suitably stipulated when for example 1I/P conversion process portion 41 exports progressive-scan video signal DAT increases the weight of degree and increases the weight of degree as described predetermined gray scale migration, respectively to the video data D (i of frame FR (k-1) before described, j, k) and the video data D (i of present frame FR (k), j, k) combination, modulation treatment portion 33 is arrived in this combinatorial input, and have and when the output progressive-scan video signal DAT of 1I/P conversion process portion 41, deposit the correcting video data D2 (i that modulation treatment portion 33 should export, j, look-up table k) (LUT:Look Up Table) 61.

As described correcting video data D2 (i, j, k), preferably set the video data D (i that pixel battle array 2 forms present frame FR (k) in the given time for, j, k) value of Gui Ding gray scale intensities (transmissivity) is for example obtained the optical response of image display device 1 (pixel battle array 2) by actual measurement.As the described schedule time, can enumerate for example demonstration phase of 1 two field picture (pixel is rewritten the cycle).Specifically, under the situation that conventional maintenance shows 1 frame period (for example being 16.7msec under the situation of lining by line scan of 60Hz), for example be taken as 1 frame period 50% during deceive the analog pulse type that shows when showing, the image demonstration phase is 1/2 frame period (for example being 8.3msec under the situation of lining by line scan of 60Hz).

Here, described LUT61 can store with as described two video data D (i, j, k) and D (i, j, the correcting video data D2 of the combination correspondence of the whole gray scales that k-1) obtain (i, j, k), but present embodiment is in order to reduce the memory capacity that LUT61 needs, the described combination corresponding with correcting video data D2 of described LUT61 storage is limited to predetermined combinations, but not all combinations of gray scales, and correcting value operational part 51 be provided with to the corresponding correcting video data D2 (i of each combination of LUT61 storage, j, k) carry out interpolation and calculate with described two video data D (i, j, k) and D (i, j, k-1) Dui Ying correcting video data D2 (i, j, k) computing circuit 62 of laggard line output.

For example, the bit wide of video data D is 8, in the time of might importing 256 gray levels as video data D, as shown in figure 21, LUT61 storage and 9 of per 32 gray levels represent the corresponding correcting video data D2 of the combination of gray scale (i, j, k), and computing circuit 62 can be by carrying out interpolation operations such as linear interpolation, (i, j k) obtain the correcting video data D2 (i corresponding with other gray scale to the correcting video data D2 that deposits from LUT61, j, k).

Correcting value operational part 51 also have from described two video data D (i, j, k) and D (i, j, (i, j k) deduct video data D (i, the j of present frame FR (k) to the correcting video data D2 of combination correspondence k-1), k) and calculate correcting value Q (i, j, subtracter 63 k).

On the other hand, in the present embodiment, control part 34 indication should with correcting value Q (i, migration increases the weight of degree as gray scale for j, the multiplication coefficient α that k) multiplies each other, and correcting video data operation portion 52 has the (i to correcting value Q, j, k) multiply by multiplication coefficient α and calculate described correcting value Q2 (i, j, multiplier 71 k) and with the video data D (i of multiplication result and present frame FR (k), j, k) the phase adduction is calculated correcting video data D2 (i, j, totalizer 72 k).Here, the value that will obtain in advance from the measured value of the optical response of pixel battle array 2 is as multiplication coefficient α.

As indicated above, when 1I/P conversion process portion 41 output progressive-scan video signals, deposit suitable correcting video data D2 (i among the LUT61, j, k), thereby control part 34 indication multiplication coefficient α=1 when selecting 1I/P conversion process portions 41, when selecting 2I/P conversion process portion 42 indication less than 1 value as multiplication coefficient α.

In the above-mentioned composition, when selecting 1I/P conversion process portion 41 and in both situations when selecting 2I/P conversion process portion 42, sharedly obtain the LUT61 that correcting value Q uses, and correcting video data operation portion 52 adjusts correcting value Q according to the indication of control part 34, thereby the migration of change gray scale increases the weight of degree.Therefore, compare, can dwindle the circuit scale of realizing that LUT61 uses with the composition that LUT61 is set respectively separately.

Generally speaking, the formula majority that available little operand calculates in the past the video data D of frame FR (k-1) (i, j, k-1) and the video data D (i of present frame FR (k), j, k) (i, j k) are similar to them to make correcting video data D2 accurately, but present embodiment is obtained correcting video data D2 (i with reference to LUT61, j k), thereby also can obtain correcting video data D2 with the less circuit of scale in the case.And, in the case, suitable correcting video data D2 suitable correcting video data D2 majority when selecting 2I/P conversion process portion 42 is relevant to a certain degree mutually when selecting 1I/P conversion process portion 41, so adjust correcting value Q by indication, can obtain correcting video data D2 than the highland with the less circuit precision of scale according to control part 34.

When correcting value operational part 51 shown in Figure 20 increases the weight of gray scale migration degree and is predetermined extent suitably the correcting video data D2 of regulation (i, j k) leave LUT61 in, and subtracter 63 from above-mentioned two video data D (i, j, k) and D (i, j, correcting video data D2 (i, the j of combination correspondence k-1), k) deduct present frame FR (k) video data D (i, j, k), thereby calculate correcting value Q (i, j k), but is not limited thereto, also can for example accept subtracter 63, and replace with described two video data D (i, j, k) and D (i, j, (i, j k) are stored in LUT61 to the correcting value Q of combination correspondence k-1).As long as (k), any situation can both obtain identical effect to energy output calibration amount Q for i, j.

In the composition shown in Figure 20,, adjust correcting value Q, but be not limited thereto, also can utilize other computing to adjust correcting value Q by multiply by the multiplication coefficient α that is predetermined.But, adjust correcting value Q by utilizing multiplication, can adjust correcting value Q than the highland with the less circuit precision of scale.

As the computing beyond the multiplication, without correcting value Q, and by changing correcting video data D2, when adjusting correcting value Q with the computing that can change correcting value (for example addition), also can delete subtracter 63 and totalizer 72 etc., and change the correcting video data D2 that deposits among the LUT61, adjust correcting value.But suitable adjustment amount majority is with correcting value Q conversion, thereby as shown in Figure 20, obtains correcting value Q, and the method for adjusting this correcting value Q can be adjusted correcting value Q than the highland with the less circuit decision of scale.

On the other hand, as shown in figure 22, another 33a of modulation treatment portion that forms example constitute according to select the 1st and 2I/P conversion process portion 41 and 42 in which side, switch and calculate correcting video data D2 (i, j, the LUT of reference in the time of k).

Specifically, the 33a of this modulation treatment portion have with the 1st and 2I/P conversion process portion 41 and 42 accordingly with described two vision signal D (i, j, k) and D (the correcting video data D2 (i that the 33a of modulation treatment portion should export is deposited in each combinatorial input k-1) during to modulation treatment portion 33 for i, j, j, k) LUT81 and 82 and with reference to control part shown in Figure 15 in this LUT81 and 82 34 indication aspects and obtain correcting video data D2 (i, j, computing circuit 83 k).

Identical with described LUT61, corresponding with the correcting video data D2 combinations thereof of the LUT81 of this composition example and 82 storages also is limited to predetermined combinations, and 83 couples of corresponding correcting video data D2 (i, j of combination that store with LUT81 or LUT82 of computing circuit, k) carry out interpolation, calculating and output and described two video data D (i, j, k) and D (i, j, the correcting video data D2 of combination correspondence k-1) (i, j, k).

In this composition, among the LUT81 and 82 which side control part 34 indications select, thereby indication increases the weight of degree to the gray scale migration of modulation handling part 33a, and when selecting 1I/P conversion process portion 41 in I/P conversion process portion 31, LUT81 are selected in control part 34 indications.Otherwise when selecting 2I/P conversion process portion 42, LUT82 is selected in control part 34 indications.Here, the LUT82 storage increases the weight of the correcting video data D2 of gray scale migration by the degree less than LUT81.Therefore, the 33a of modulation treatment portion can the degree by less than 1I/P conversion process portion 41 time increase the weight of the gray scale migration.

Also the composition with shown in Figure 20 was identical during this was formed, gray scale migration according to the I/P transform method of the I/P conversion process portion 31 change modulation treatment 33a of portion increases the weight of degree, thus pixel needs speed to improve and the video quality of pixel battle array 2 demonstrations improve both can both be accomplished.

Different with composition shown in Figure 20, because LUT (81,82) according to I/P transform method switch operation circuit 83 references of I/P conversion process portion 31, turning down mutually between the suitable correcting video data D2 under each I/P transform method situation, even in the composition of Figure 20, adjustment just is fit to the correcting value Q of certain I/P transform method and calculates in the composition of the correcting video data D2 that is fit to other I/P transform method, under the big situation of error between calculated value and the best correcting video data D2, also can obtain correcting video data D2 accurately.

Above, with the situation to signal processing part 21 input interlaced video signals is example, be illustrated, but constituting, the signal processing part 21 of present embodiment can accept progressive-scan video signal, signal processing part is input to frame memory 32 and modulation treatment portion 33 with this vision signal as described vision signal DAT when the input progressive-scan video signal.

At this moment, control part 34 can move modulation handling part (33,33a) indication identical gray scale when selecting 1I/P conversion process portion 41 and increase the weight of degree, but require under the situation of the higher video demonstration of display quality, different gray scale migrations increased the weight of degree when preferably indication was done the I/P conversion with I/P conversion process portion 31 to the modulation handling part.

Particularly, during the input progressive-scan video signal, also similarly handle when selecting certain I/P transform method in the I/P conversion process portion 31, for example predetermined line by line LUT is set in modulation treatment portion, this LUT is selected in control part 34 indications, or control part 34 indicates the multiplication coefficient of usefulness line by line, thereby the migration of change gray scale increases the weight of degree.

Here, generally speaking, input is compared during with the input interlaced video signal during progressive-scan video signal, and what do not take place that the I/P conversion causes non-ly wishes the gray scale migration.Therefore, input is little when the gray scale migration being increased the weight of degree set must be than the input progressive-scan video signal during interlaced video signal, can eliminate the video quality that pixel battle array 2 shows and descend, and improves optic response speed.

Thereby, can be according to having or not the migration of I/P conversion and I/P transform method change gray scale increase the weight of degree, when making the input progressive-scan video signal, or when selecting arbitrary I/P transform method, high-quality video can be shown to pixel battle array 2.

Embodiment 10

Embodiment 1 increases the weight of the example that consists of of degree with the I/P transform method change gray scale migration that only utilizes I/P (interlacing-line by line) conversion process portion 31, be illustrated, but the combination change gray scale migration that the present embodiment explanation utilizes I/P transform method and other to trigger the source increases the weight of the composition of degree.Hereinafter, be example with the temperature, other triggering source is described.

Promptly, as shown in figure 23, the composition of the signal processing part 21b of present embodiment and signal processing part 21 shown in Figure 15 are roughly the same, but add temperature sensor 35b, and control part 34b is according to the I/P transform method of I/P conversion process portion 31 and the combination of the detected temperature of

temperature sensor

35b, and 33 indication gray scale migrations increase the weight of degree to the modulation handling part.

Temperature sensor 35b preferably is located in the pixel battle array 2, but this structurally at need, also configurable place in as far as possible close pixel battle array 2.The number of sensors that constitutes temperature sensor 35b is not limited to 1, can be provided with a plurality of accordingly with each position of pixel battle array 2.Be provided with when a plurality of, the exportable result that testing result from each sensor is averaged of temperature sensor 35b is as detected value, and also exportable value from the sensor that any conversion is big in each sensor is as detected value.As long as the temperature of energy measurement pixel battle array 2, any situation can both obtain identical effect.

Here, the response speed Yin Wendu of liquid crystal cell and changing is so in the image display device 1 by liquid crystal cell video pixel PIX, suitable gray scale migration increases the weight of also Yin Wendu and changing of degree.The such Yin Wendu of the response speed of pixel PIX and when changing, ignore temperature will the gray scale migration increases the weight of degree and fixes, and then can not suitably increase the weight of the gray scale migration.Therefore, because that gray scale migration increases the weight of degree is undue or not enough, the video that possible pixel battle array 2 shows produces the white light or the black hangover of non-hope, makes the reduction of video quality.

Yet, in the above-mentioned composition, not only increase the weight of degree according to the I/P transform method but also according to temperature change gray scale migration in the device, thereby compare with the composition that only migration increases the weight of degree according to I/P transform method change gray scale, can suitably increase the weight of the gray scale migration, thereby can make the higher video of quality be shown to pixel battle array 2.

As an example, modulation treatment portion 33 is under the situation of composition shown in Figure 20, migration increases the weight of degree as gray scale, and control part 34b indicates the multiplication coefficient α of the combination that meets I/P transform method and the detected temperature of temperature sensor 35b to modulation handling part 33.

When the control part 34b of present embodiment increases the weight of degree in the migration of decision gray scale, temperature range for example is divided into≤15 ℃ temperature range R1,＞15 ℃ and≤25 ℃ temperature range R2,＞25 ℃ and≤35 ℃ temperature range R3, and＞35 ℃ temperature range R4, to control, and the multiplication coefficient of establishing when selecting 1I/P conversion process portion 41 corresponding with each temperature range R1～R4 is respectively α 11～α 14, then modulation handling part 33 indicated the multiplication coefficient corresponding with current reference temperature in the multiplication coefficient that preestablishes into α 11＞α 12＞α 13＞α 14.Equally, if the multiplication coefficient corresponding with each temperature range R1～R4 when selecting 2I/P conversion process portion 42 is respectively α 21～α 24, then modulation handling part 33 is indicated the multiplication coefficient corresponding with current reference temperature in the multiplication coefficient that preestablishes into α 21＞α 22＞α 23＞α 24.

Moreover, identical with embodiment 9, when each multiplication coefficient is set down for identical temperature range and is made comparisons, the multiplication coefficient of 2I/P conversion process portion 42 little (α 21＜α 11, α 22＜α 12, α 23＜α 13, α 24＜α 14).Again, LUT61 deposit calculate to select 1I/P conversion process portion 41 and＞situation of 35 ℃ temperature range R4 under suitably the gray scale migration correcting value Q of regulation use value (for example correcting video data D2) time, α 14 is set at 1.

In the above-mentioned composition, all sharedly when described temperature range R1～R4 selects 1I/P conversion process portion 41 and when described temperature range R1～R4 selects 2I/P conversion process portion 42 obtain the LUT61 that correcting value Q uses, and correcting video data operation portion 52 adjusts correcting value Q according to the indication of control part 34, thereby the migration of change gray scale increases the weight of degree.Therefore, as shown in figure 22, compare, can dwindle circuit scale with the composition that LUT is set respectively separately.

Moreover, because the correcting video data D2 of most combinations that are fit to described I/P transform methods and temperature is simple crosscorrelation mutually in a way, adjust correcting value Q by indication, can obtain correcting video data D2 than the highland with the less circuit precision of scale according to control part 34b.Above,, be illustrated, as long as but can move according to temperature change gray scale in the device and increase the weight of degree, the corresponding multiplication coefficient of temperature in also can for example obtaining and install with computing to be divided into the example that consists of of predetermined a plurality of temperature ranges (in this example being 4).

On the other hand, form example as another, modulation treatment portion is under the situation of the 33a of modulation treatment portion shown in Figure 22, as LUT, the corresponding LUT811 of each temperature range when being provided with selection 1I/P conversion process portion 41 ..., and the corresponding LUT821 of each temperature range when selecting 2I/P conversion process portion 42 ... and control part 34b indicates the LUT of the combination that meets I/P transform method and the detected temperature of temperature sensor 35b to modulation handling part 33a, and migration increases the weight of degree as gray scale.

For example, in the composition that is divided into 4 temperature range R1～R4 like that mentioned above, as shown in figure 24, be provided with and the corresponding LUT811～LUT814 of described each temperature range R1～R4, the LUT of reference during as selection 1I/P conversion process portion 41, and setting and the corresponding LUT821～LUT824 of described each temperature range R1～R4, the LUT of reference during as selection 2I/P conversion process portion 42.

For example, select 1I/P conversion process portion 41 and≤situation of 15 ℃ temperature range R1 under, control part 34b indication selects LUT811 as the LUT corresponding with both.Thereby the 33a of modulation treatment portion carries out the gray scale migration with reference to LUT811 and increases the weight of, and finishes gray scale migration maximum is increased the weight of.On the other hand, select 2I/P conversion process portion 42 and＞situation of 35 ℃ temperature range R4 under, control part 34b indication selects LUT824 as the LUT corresponding with both.Thereby the 33a of modulation treatment portion carries out the gray scale migration with reference to LUT824 and increases the weight of, and finishes gray scale migration minimum is increased the weight of.

In the above-mentioned composition, different with composition shown in Figure 29, LUT (811～824) according to I/P transform method switch operation circuit 83 references of I/P conversion process portion 31, thereby turning down mutually between the correcting video data D2 that is fit under the situation of each I/P transform method, even in the composition of Figure 20, adjustment just is fit to the correcting value Q of certain I/P transform method and calculates in the composition of the correcting video data D2 that is fit to other I/P transform method, under the big situation of error between calculated value and the best correcting video data D2, also can obtain correcting video data D2 accurately.

Below, with further reference to Figure 25 and Figure 26 another composition example is described.That is, this signal processing part 21c that forms example is provided with the LUT corresponding with each temperature range, simultaneously shared LUT for reference correcting video data D2 reference between each I/P transform method of I/P conversion process portion 31 also.

Specifically, roughly the same among the 33c of modulation treatment portion as shown in figure 25 with modulation treatment portion 33 shown in Figure 20, correcting value operational part 51c and correcting video data operation portion 52 also are set.But, in this composition example, be arranged to replace the correcting value operational part 51c of correcting value operational part 51 shown in Figure 20 that each LUT81 and 82 corresponding with each I/P transform method, the LUT that carries out reference as computing circuit 62c are set respectively.Described computing circuit 62c is with reference to the LUT of control part 34c indication, obtain with the video data D of present frame FR (k) (i, j, k) and the video data D of preceding frame FR (k-1) (i, j, k-1) Dui Ying correcting video data D2 (i, j, k).

Under the situation of this composition example, control part 34c shown in Figure 23 is to meeting the LUT and the combination that meets the multiplication coefficient α of the detected temperature of temperature sensor 35b of I/P transform method among modulation handling part 33c indication described each LUT81 and 82, migration increases the weight of degree as gray scale.

This is formed in the example, as shown in figure 26, the shared LUT81 and 82 corresponding between each temperature range R1～R4 with each I/P transform method, and identical with composition shown in Figure 20, adjust correcting value Q by correcting video data operation portion 52 according to the indication of control part 34c, the migration of change gray scale increases the weight of degree.Therefore, as shown in figure 22, compare, can dwindle circuit scale with the composition of combination setting LUT811～824 separately of each temperature range and I/P transform method.

In this composition example, the LUT81/82 corresponding with each I/P transform method is set respectively, and, changes the gray scale migration and increase the weight of degree by according to the LUT that selects any I/P transform method switch operation circuit 62c reference.Therefore, turning down mutually between the correcting video data D2 of suitable each I/P transform method, even in the composition of Figure 20, adjustment just is fit to the correcting value Q of certain I/P transform method and calculates in the composition of the correcting video data D2 that is fit to other I/P transform method, under the big situation of error between calculated value and the best correcting video data D2, also can obtain correcting video data D2 accurately.

Therefore, can realize that circuit scale dwindles and the video quality raising that is shown to pixel battle array 2 obtains balanced image display device 1.

Moreover, above, with correcting video data operation portion 52 according to the I/P transform method adjust correcting value Q and computing circuit 62c switch according to temperature reference LUT consist of example, be illustrated, but also can belong to some temperature ranges according to current temperature, the LUT of switch operation circuit 62c reference also makes correcting video data operation portion 52 adjust correcting value Q according to the I/P transform method simultaneously.At this moment, as shown in figure 26, the shared LUT811 corresponding～814 between each I/P transform method with each temperature range, thereby compare with the composition that LUT811～824 separately are set, can dwindle circuit scale, simultaneously again owing to LUT811～814 corresponding with each temperature range R1～R4 are set respectively, even under the situation about turning down mutually between the correcting video data D2 of suitable each temperature range R1～R4, also can obtain correcting video data D2 accurately.

But, with relevant the comparing between the correcting video data D2 that is fit to each I/P transform method, when being fit to relevant big between the correcting video data D2 of each temperature range, perhaps the quantity of the kind analogy temperature range of I/P transform method is few and when especially requiring to dwindle circuit scale, as shown in figure 25, preferably adjust correcting value Q according to temperature.

Above, illustrated that shared LUT between the side of I/P transform method and temperature also adjusts correcting value according to this side simultaneously and switches the composition of LUT according to the opposing party, but also can make shared LUT between the combination of I/P transform method and temperature, also adjust correcting value simultaneously according to some combinations.But shared LUT between the side of above-mentioned such I/P transform method and temperature then can only adjust correcting value according to this side, and only switch LUT according to the opposing party, thereby can dwindle circuit scale.

Moreover above, carrying out interpolation operation so that reduce the circuit scale of LUT with computing circuit 62c is example, be illustrated, but also can be as indicated above, do not make interpolation operation, and storage and use the corresponding correcting video data D2 of combination (for example 256 * 256 kinds) with whole gray scales.At this moment, computing circuit 62c switches the LUT of reference according to the indication of control part 34c, also exports the video data D (i with present frame FR (k) simultaneously, j, k) and video data D (i, the j of preceding frame FR (k-1), k-1) leave in accordingly LUT correcting video data D2 (i, j, k).Moreover, above, to deposit correcting video data D2 and control part 34c among the LUT by correcting video data operation portion 52 indication multiplication coefficients being adjusted the example that consists of of correcting value Q, be illustrated, but it is as indicated above, correcting value can be stored in LUT, also can utilize other computing to adjust correcting value Q.

Below, though with reference to shared LUT between Figure 27～Figure 30 explanation I/P transform method and do not establish correcting video data operation portion 52 but still can increase the weight of the composition of degree according to the migration of I/P transform method change gray scale.

That is, as shown in figure 27, the signal processing part 21d of this composition example is identical with Figure 26, shared LUT between each I/P transform method, and the 33c of modulation treatment portion shown in Figure 22 is set, as modulation treatment portion.

But, in this composition example, as shown in figure 27, set the temperature of switching each LUT for each I/P transform method difference, LUT is switched in control part 34d indication, make and the gray scale migration should be increased the weight of degree set and get little I/P transform method, produce and switch to the LUT corresponding with higher temperature range at the lower time point of temperature.

With situation that LUT811～814 corresponding with 4 temperature range R1～R4 for example are set is example, describes.When selection should increase the weight of gray scale migration degree set and gets big I/P transform method, when promptly selecting 1I/P conversion process portion 41, control part 34c temperature in device surpassed 15 ℃ time point and indicates and switch to the LUT812 corresponding with higher temperature range.

Otherwise, when selection should increase the weight of degree set with gray scale migration and gets little I/P transform method, when promptly selecting 2I/P conversion process portion 42, control part 34c switches to LUT812 in the lower time point of temperature (temperature surpasses 10 ℃ time point in installing in the legend) indication.

Here, as indicated above, set individual LUT811～814 for the LUT corresponding with high more temperature range, it is more little that the gray scale migration increases the weight of degree.Therefore, migration increases the weight of the indication of degree as gray scale, control part 34c is as indicated above like that, LUT is switched in indication, thereby in the time of under the identical situation of temperature, comparing, the migration of the gray scale of 2I/P conversion process portion 42 is increased the weight of this degree that degree set becomes to be equal to or less than 1I/P conversion process portion 41.As a result, though correcting video data operation portion 52 is not set, but still can increase the weight of degree according to the migration of I/P transform method change gray scale, thus compare with the composition that correcting video data operation portion 52 is set as shown in figure 25 like that, can dwindle circuit scale.

Figure 28 or constitute described control part 34d as shown in Figure 29 for example.That is, control part 34d shown in Figure 28 have the detected value of the detected temperature of his-and-hers watches temperature indicating degree sensor 35b and indicate threshold value compare and judge the detected temperature of temperature sensor 35b belong to after some temperature ranges to modulation handling part 33c indication select to meet judged result LUT judgment processing portion 91 and according to the I/P transform method change of I/P conversion process portion 31 threshold value change handling part 92 to the threshold value of described judgment processing portion 91 indications.

For example, be that the situation of temperature shown in Figure 27 is that example describes with switching temperature, then threshold value change handling part 92 indicates 15 ℃, 25 ℃ and 35 ℃ as threshold value when selecting 1I/P conversion process portion 41.Therefore, judgment processing portion 91 indicates when≤15 ℃ temperature range selects LUT811,＞15 ℃ and≤25 ℃ temperature range,＞25 ℃ and≤when 35 ℃ temperature range and＞35 ℃ temperature range, LUT812, LUT813 or LUT814 are selected in indication respectively.

On the other hand, when selecting 2I/P conversion process portion 42, indicate 10 ℃, 20 ℃ and 30 ℃ as threshold value.Therefore, judgment processing portion 91≤10 ℃ temperature range,＞10 ℃ and≤20 ℃ temperature range,＞20 ℃ and≤when 30 ℃ temperature range and＞30 ℃ temperature range, LUT811, LUT812, LUT813 or LUT814 are selected in indication respectively.

Thereby LUT is switched in control part 34d shown in Figure 28 indication, makes the gray scale migration to be increased the weight of degree set and get little I/P transform method, produces at the lower time point of temperature to switch to and the corresponding LUT of higher temperature range.

Above, the threshold value that compares according to the detected value of I/P transform method change and temperature sensor 35b, thereby change switching temperature, but also can be regardless of the I/P transform method, each threshold value is fixed, and before the judgement of judgment processing portion 91, the detected value of change temperature sensor 35b.

Particularly, be provided with among the control part 34d shown in Figure 29 to judgment processing portion 91 indication fixed thresholds and no matter the threshold setting portion 93 of I/P transform method changes handling part 92 to replace threshold value.Also between temperature sensor 35b and judgment processing portion 91, the operational part 94 according to the detected value of I/P transform method change temperature sensor 35b is set.

For example, be that situation shown in Figure 27 is that example describes with switching temperature, then operational part 94 when selecting 2I/P conversion process portion 42, the control detection value, the detected value that makes temperature sensor 35b is high 5 ℃ during than 1I/P conversion process portion 41.As an example, threshold setting portion 93 constitutes under 15 ℃, 25 ℃ and 35 ℃ situations as fixed threshold of judgment processing portion 92 indications, do not change detected value when operational part 94 is selected 1I/P conversion process portion 42, when selecting 2I/P conversion process portion 42 temperature detection value is added 5 ℃.

Like this, in the composition according to I/P transform method change temperature detection value, control part 34d also can indicate and the gray scale migration should be increased the weight of degree set and get little I/P transform method, produces at the lower time point of temperature to switch to and the corresponding LUT of higher temperature range.

Here, above,, be that example is illustrated with the situation of shared whole LUT between the I/P transform method, but be not limited thereto, also common sparing LUT only with reference to Figure 25～Figure 29.The composition of common sparing LUT also can be used for Figure 25 and the composition of correcting video data operation portion 52 is set as shown in Figure 26, but does not hereinafter establish correcting video data operation portion 52 with reference to Figure 30 like that with Figure 27 and change is switched the example that consists of of the temperature of LUT and described.

Promptly, the signal processing part 21e of this composition example is identical with Figure 27, also shared each LUT811～814 between the I/P transform method, but migration increases the weight of the temperature range of degree minimum to gray scale, and the 33e of modulation treatment portion as shown in figure 22 is provided with different each LUT814,824 of each I/P transform method like that.And LUT814 is corresponding to 1I/P conversion process portion 41, and LUT824 is corresponding to 2I/P conversion process portion 42.

Accompany with it, control part 34e is identical with control part 34d shown in Figure 22, also LUT is switched in indication, make and the gray scale migration should be increased the weight of degree set and get little I/P transform method, produce and switch to and the corresponding LUT of higher temperature range at the lower time point of temperature, but in each I/P transform method, when the detected temperature of temperature sensor 35b belongs to the highest temperature range, to modulation handling part 33e indication, make the LUT of the I/P transform method that meets current loading selection among its each LUT814,824 that selects each I/P transform method setting.

During this is formed, the common sparing LUT corresponding between the I/P transform method, thereby compare with the composition that LUT mutual different between each I/P transform method is set with each temperature range, can dwindle LUT less than circuit scale.On the other hand, shared LUT between the I/P transform method then exists under the situation that can not suitably increase the weight of the gray scale migration, also can increase the weight of the gray scale migration with the degree that is fit to each I/P transform method.As a result, can realize that circuit scale dwindles and the video quality raising that is shown to pixel battle array 2 obtains balanced image display device 1.

Moreover, also identical in the present embodiment with embodiment 9, in the time of also can making the input progressive-scan video signal, handle in the same manner when selecting certain I/P transform method in the I/P conversion process portion 31, for example in modulation treatment portion the LUT of usefulness line by line is set, this LUT is selected in control part 34 indications, or control part 34 is indicated the multiplication coefficient of usefulness line by line, or indication switches LUT in the switching temperature of usefulness line by line, thereby the migration of change gray scale increases the weight of degree.

Thereby, can increase the weight of degree according to the combination change gray scale migration that have or not I/P conversion and I/P transform method and temperature, make when importing progressive-scan video signal, or when selecting arbitrary I/P transform method, high-quality video can be shown to pixel battle array 2.

In above-mentioned embodiment 9 and embodiment 10, modulation treatment portion (33～33e) according to video data D before 1 frame (i, j, k-1) and present frame video data D (i, j, k) correcting video data D (i, j, k), with the gray scale migration of frame before increasing the weight of, but be not limited thereto to present frame.Also can remove with reference to two video data D (i, j, k) and D (i, j, k-1) outside, also (i, j k-2), move gray scale and to increase the weight of with reference to the video data D of preceding frame.As long as can be at least according to video data D before 1 frame (i, j, k-1) and present frame video data D (i, j, k) increase the weight of before frame to the gray scale migration of present frame, can both obtain identical effect.But the respective embodiments described above are like that according to video data before 1 frame and present frame video data D (i, j, k-1) and D (i, j k) increase the weight of gray scale migration, then compare when more the video data of front increases the weight of the gray scale migration with going back basis, can reduce needs data quantity stored in advance, can dwindle circuit scale.

In the respective embodiments described above, with constitute signal processing part each according in control part (34～34e) realize that for " carrying out the functional block that procedure code that recording mediums such as ROM and RAM deposit is realized by arithmetic elements such as CPU " and with hardware the situation of all the other members is that example is illustrated, but the available hardware that carries out same processing is realized control part, also can utilize with control part identical functions piece and realize described all the other members.Also can make up the hardware that carries out section processes and carry out the control of implementing this hardware and the described computing means of the program of all the other processing, to realize constituting each member of signal processing part 21.

Moreover the member of being used as hardware description in above-mentioned each member also can make up the hardware that carries out section processes and carry out the control of implementing this hardware and the described computing means of the procedure code of all the other processing are realized.Above-mentioned arithmetic element can be monomer, also can make by installing the common program code of a plurality of arithmetic elements that inner bus or various communication line connect.Storage part in above-mentioned each member (frame memory and LUT etc.) can be memory devices such as storer itself.Selector switch 43 is not limited to hardware switch, so long as only make just passable that an I/P transform method works selectively.This is self-evident.

The procedure code itself that can directly carry out by described arithmetic element or as the program of the data of utilizing processing such as the decompression energy generating routine sign indicating number of setting forth later by after leaving this program (procedure code or above-mentioned data) in recording medium, distribute this recording medium, perhaps described program is used the communication unit transmission and the distribution that send usefulness through the wired or wireless communication circuit, carried out with described arithmetic element.

When communication line transmitted, each transmission medium that constitutes communication line transmitted described program by propagating the train of signal of representation program mutually through this communication line.When transmitting train of signal, can make dispensing device by utilizing the train of signal modulated carrier of representation program, through the described train of signal described carrier wave that is added to.At this moment, receiving trap restores through train of signal by the demodulation carrier wave.

On the other hand, when transmitting described train of signal, also can make dispensing device be divided into packet as the train of signal of digital data strings after, transmit.At this moment receiving trap connects the packet group who receives, described train of signal is restored.When dispensing device sends train of signal, available time-division, frequency division, sign indicating number grade method with train of signal and other train of signal multiple connection after, transmit.At this moment, receiving trap extracts each train of signal from the train of signal of multiple connection, with its recovery.As long as can pass through the communication line convey program, arbitrary situation all obtains identical effect.

Here, the recording medium during distributing programs with detachable be good, but no matter whether the recording medium behind the distributing programs then detachable.As long as described recording medium is can stored programme, no matter whether can rewrite (writing), whether volatibility, recording method and shape.As an example of recording medium, can enumerate tape or disk or CD-ROM and photomagneto disk (MO), minidisk (MD) and digital video disk CDs such as (DVD) such as floppy disk and hard disk such as tape and magnetic tape cassette.Recording medium also can be IC-card, light-card such card or semiconductor memories such as mask rom, EEPROM or quick erasable ROM.Perhaps arithmetic element such as CPU storer that can form.

Described procedure code can be the sign indicating number to above-mentioned each Overall Steps of handling of described arithmetic element indication; Call the base program (for example operating system, routine library etc.) that can carry out above-mentioned each part of handling if exist by step in accordance with regulations, then available to described arithmetic element indication sign indicating number and directive etc. replace described Overall Steps part or all.

It is such that form when described recording medium is deposited program can be the state that for example is configured in real storage, arithmetic element addressable and carry out deposit form; Also can be configured in be installed to before the data-carrier store behind the total addressable local record medium of arithmetic element (for example real storage and hard disk etc.) deposit form or from network with can carry recording medium etc. and install to and deposit form etc. before the described local record medium.

In addition, the object code after program is not limited to compile can be used as the intermediate code that produces in source code, explanation or the compilation process and is deposited.As long as can utilize the decoding, explanation, compiling, link of decompression, the coded message of compressed information or to the configuration of real storage etc. is handled or each is handled combination, be transformed into the executable form of described arithmetic element, regardless of the form that program is stored in the recording medium reality, arbitrary situation can both obtain identical effect.

Moreover, the liquid crystal indicator of described each embodiment, by video data the video data of supplying with LCD panel is increased the weight of conversion according to video data before at least 1 vertical cycle and current vertical cycle, compensate the optical response of described LCD panel, has inputting video data when being interlace signal, according to the some methods in a plurality of transform methods, this interlace signal is transformed into the converter unit of the interlacing of progressive signal-line by line; And the conversion that increases the weight of of carrying out current vertical cycle video data, so that increase the weight of before and after at least 1 vertical cycle of described progressive signal the gray scale migration increase the weight of converter unit, according to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts, change and control increases the weight of the conversion degree to described video data.

Again, the program of described each embodiment, be used for computing machine, this computer-controlled liquid crystal indicator have inputting video data when being interlace signal according to the some methods in a plurality of transform methods, this interlace signal is transformed into the converter unit of the interlacing of progressive signal-line by line; And the conversion that increases the weight of of carrying out current vertical cycle video data, so that increase the weight of before and after at least 1 vertical cycle of described progressive signal the gray scale migration increase the weight of converter unit, by the video data of supplying with described LCD panel being increased the weight of conversion according to the video data before at least 1 vertical cycle and the video data of current vertical cycle, compensate the optical response of described LCD panel, and described program makes this computing machine carry out the transform method that adopts according in the conversion process of the converter unit of described interlacing-line by line, change and control to the processing that increases the weight of the conversion degree of described video data.

Moreover, the liquid crystal display control method of described each embodiment, by the video data of supplying with described LCD panel being increased the weight of conversion according to the video data before at least 1 vertical cycle and the video data of current vertical cycle, compensate the optical response of described LCD panel, have following steps: when inputting video data is interlace signal according to the some methods in a plurality of transform methods, this interlace signal is transformed into the shift step of progressive signal: and carry out after the described conversion video data increase the weight of conversion, so that make described LCD panel form the step of the transmissivity of described video data regulation at the appointed time, and, change and control increases the weight of the conversion degree to described video data according to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts.

Again, the liquid crystal display control method of described each embodiment, compare by video data video data before at least 1 vertical cycle and current vertical cycle, and the video data of supplying with described LCD panel is increased the weight of conversion according to this comparative result, compensate the optical response of described LCD panel, have following steps: according to the some methods in a plurality of transform methods, this interlace signal is transformed into the shift step of progressive signal when inputting video data is interlace signal; And carry out after the described conversion video data increase the weight of conversion so that make described LCD panel form the step of the transmissivity of described video data regulation at the appointed time, and, change and control increases the weight of the conversion degree to described video data according to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts.

Except that above-mentioned steps, also can have with reference to the step of depositing by the table storer that increases the weight of transformation parameter of the video data of current vertical cycle and the video data appointment before 1 vertical cycle; Described video data is implemented the step that increases the weight of computing with the described transformation parameter that increases the weight of; And the step that the described output data that increases the weight of computing be multiply by different coefficients according to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts.

Again, except that above-mentioned steps, also can have when depositing reference with the 1st transform method conversion inputting video data, by the video data of current vertical cycle and the table storer step that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle; And when depositing with the 2nd transform method conversion inputting video data reference, by the video data of current vertical cycle and the table storer step that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle; And use the transform method that adopts according in the conversion process of the converter unit of described interlacing-line by line, implement the step that increases the weight of computing from the described data of transformation parameter after that increase the weight of that described table storer is read to described conversion.

Moreover, except that above-mentioned steps, also have the step that detects temperature in the device; And change the step that increases the weight of the conversion degree to described video data according to the testing result of temperature in the described device.

Except that above-mentioned steps, also have with reference to the step of depositing by the table storer that increases the weight of transformation parameter of the video data of current vertical cycle and the video data appointment before 1 vertical cycle; Described video data is implemented the step that increases the weight of computing with the described transformation parameter that increases the weight of; And the step that the described output data that increases the weight of computing be multiply by different coefficients according to the testing result of temperature in the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts and the described device.

Except that above-mentioned steps, also have when depositing reference with the 1st transform method conversion inputting video data, by the step of the table storer that increases the weight of transformation parameter of the video data of current vertical cycle and the video data appointment before 1 vertical cycle; When depositing with the 2nd transform method conversion inputting video data reference, by the table storer that increases the weight of transformation parameter of the video data of current vertical cycle and the video data appointment before 1 vertical cycle, use the transform method that adopts according in the conversion process of the converter unit of described interlacing-line by line, the described step that increases the weight of the transformation parameter data execution after to described conversion increasing the weight of computing of reading from described table storer; And, the described output data that increases the weight of computing be multiply by the step of different coefficients according to temperature detection result in the described device.

Again, except that above-mentioned steps, also have when depositing reference with the 1st transform method conversion inputting video data, corresponding to each of the interior temperature of multiple arrangement the video data of current vertical cycle and the table storer step that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle; When depositing with the 2nd transform method conversion inputting video data reference, corresponding with each of the interior temperature of multiple arrangement by current vertical cycle video data and the step of the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle; And, use the described video data of transformation parameter after of reading from described table storer that increase the weight of to implement the step that increases the weight of computing to described conversion according to temperature detection result in transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts and the described device.

Except that above-mentioned steps, also have with reference to deposit with multiple arrangement in the step of the table storer that increases the weight of transformation parameter of the video data of each corresponding current vertical cycle of temperature and the vision signal appointment before 1 vertical cycle; And, use the described step that increases the weight of video data execution the increase the weight of computing of transformation parameter after of reading from described table storer to described conversion according to the comparative result of temperature detection result in the switching temperature of the transform method decision of in the conversion process of the converter unit of described interlacing-line by line, adopting and the described device.

Except that above-mentioned steps, also has step to the regulation computing of each decision of implementing described a plurality of methods as the temperature data of temperature detection result in the described device; To implementing the step that temperature data that obtains after the described computing and the defined threshold temperature data that is predetermined compare; And produce according to the result of described comparison and to switch and control the described step that increases the weight of the switch-over control signal of transformation parameter.

Except that above-mentioned steps, also has the step that the defined threshold temperature data as each decision of the temperature data of temperature detection result in the described device and described a plurality of transform methods is compared; And produce according to the result of described comparison and to switch and control the described step that increases the weight of the switch-over control signal of transformation parameter.

Moreover, in said embodiment, as an example, write and the situation of the driving method (i.e. 1 vertical cycle (1 frame period) and consistent driving method of 1 vertical display cycle) of whole videos of 1 frame (1 scene) of scan video data is that example is illustrated to adopt in the image display device for example, but be not limited thereto in 1 frame period of spreading all over video data (for example 16.7msec).For example also can adopt in the image display devices such as liquid crystal indicator to divide in 1 frame period and be provided with show video during (video shows the phase) and show slinkingly show (for example black the demonstration) during the driving method (analog pulse driving method) of (deceiving the demonstration phase).

Again, in said embodiment, with the combination of the inputting video data that will meet inputting video data before 1 frame and present frame to increase the weight of the situation that transform data outputs to control circuit 21 be that example is illustrated, but be not limited thereto.Also can be for example not only with reference to the inputting video data before 1 frame but also with reference to the inputting video data before the multiframe (for example the inputting video data before 2 frames etc.), increase the weight of transform data with decision.As long as increase the weight of transform data with reference to the inputting video data before at least 1 frame with decision, any situation can both obtain identical effect.But,, need the bigger frame memory of memory capacity for example increases the weight of transform data with reference to the inputting video data of front more with decision.Therefore, when requiring to reduce memory capacity, preferably as the respective embodiments described above, only, increase the weight of transform data with decision with reference to the inputting video data before 1 frame in the inputting video data of each frame and the inputting video data of present frame.

Moreover, in described each embodiment, with reference to the inputting video data before 1 frame, to increase the weight of transform data and output to control circuit 12, write the preceding inputting video data of 1 frame but also can utilize, the actual gray level that reaches of pixel of prediction liquid crystal board, and this predicted value is used as the preceding video data (past data) of described 1 frame carries out reference, with the inputting video data before 1 frame that is equal to actual input.At this moment, with reference to the inputting video data before 1 frame, the gray scale that reaches with prediction.As long as the inputting video data decision according to inputting video data before at least 1 frame and present frame increases the weight of transform data, any situation can both obtain identical effect.

In described each embodiment, with the correcting video data D2 (i of modulation treatment portion 33 (33a) with reference to the parameter of depositing as LUT61,81～82 (being OS table storer) (increasing the weight of transformation parameter), j, k) situation of doing to increase the weight of conversion is that example is illustrated, but is not limited thereto.Also for example modulation treatment portion utilizes M-1 frame inputting video data (past data) that M frame inputting video data (current data) and frame memory 32 the are deposited binary function f functions such as (current data, past datas) as parameter, calculates correction (increasing the weight of) transform data of the optical response that compensates LCD panel 11.

Moreover, embodiment of finishing in " embodiment (best mode that carries out an invention) " or embodiment are the example of explanation the technology of the present invention content after all, should not only limit to this concrete example and do narrow definition, in the scope of spirit of the present invention and claims of then recording and narrating, can do various changes and put into practice.

Industrial practicality

Adopt the present invention, then increase the weight of journey owing to change the gray scale migration according to the transform method of interlacing-line by line conversion Degree or increase the weight of the conversion degree, during therefore with any transform method generation progressive-scan video signal, can with Suitable degree is done the gray scale migration and is increased the weight of (increasing the weight of conversion). Therefore, the response speed of described liquid crystal indicator The video quality that raising and described liquid crystal indicator show improves both can both be accomplished, applicable to reality Now with the various liquid crystal indicators headed by liquid crystal television receiver and the LCD monitor.

Claims

1. liquid crystal indicator, by video data the video data of supplying with LCD panel is increased the weight of conversion according to video data before at least 1 vertical cycle and current vertical cycle, compensate the optical response of described LCD panel, it is characterized in that, have

When being interlace signal, inputting video data, this interlace signal is transformed into the converter unit of the interlacing of progressive signal-line by line according to the some methods in a plurality of transform methods; And

Carry out the conversion that increases the weight of of current vertical cycle video data, so as to increase the weight of before and after at least 1 vertical cycle of described progressive signal the gray scale migration increase the weight of converter unit,

According to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts, change and control increases the weight of the conversion degree to described video data.

2. the liquid crystal indicator described in claim 1 is characterized in that,

Have and deposit by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle,

The described converter unit that increases the weight of has

With the described transformation parameter that increases the weight of, described video data is implemented the operational part that increases the weight of computing; And

According to the transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts, the described output data that increases the weight of computing be multiply by the multiplier of different coefficients.

3. the liquid crystal indicator described in claim 1 is characterized in that, has

When depositing with the 1st transform method conversion inputting video data reference, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle; And

When depositing with the 2nd transform method conversion inputting video data reference, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle,

The described converter unit that increases the weight of has use the described transformation parameter of reading from described table storer according to the transform method that adopts that increases the weight of in the conversion process of the converter unit of described interlacing-line by line, the data after the described conversion is implemented the operational part that increases the weight of computing.

4. the liquid crystal indicator described in claim 1 is characterized in that,

Also have the temperature detecting unit that detects temperature in the device,

The described testing result that increases the weight of converter unit according to temperature in the described device changes described video data is increased the weight of the conversion degree.

5. the liquid crystal indicator described in claim 4 is characterized in that,

The described converter unit that increases the weight of has

According to the testing result of temperature in transform method that in the conversion process of the converter unit of described interlacing-line by line, adopts and the described device, the output data of described operational part be multiply by the multiplier of different coefficients.

6. the liquid crystal indicator described in claim 4 is characterized in that, has

The described converter unit that increases the weight of has

Use is carried out the described transformation parameter that increases the weight of that the described table storer of conversion is read from meeting according to the some methods described a plurality of transform methods, the data after the described conversion is implemented the operational part that increases the weight of computing; And

According to temperature detection result in the described device, the described output data that increases the weight of computing be multiply by the multiplier of different coefficients.

7. the liquid crystal indicator described in claim 4 is characterized in that, has

Reference when depositing, corresponding with each of temperature in the multiple arrangement with the 1st transform method conversion inputting video data, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle; And

Reference when depositing, corresponding with each of temperature in the multiple arrangement with the 2nd transform method conversion inputting video data, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the video data appointment before 1 vertical cycle,

The described converter unit that increases the weight of has according to temperature detection result in transform method that adopts in the conversion process of the converter unit of described interlacing-line by line and the described device and uses the described transformation parameter of reading from described table storer that increases the weight of, and the video data after the described conversion is implemented the operational part that increases the weight of computing.

8. the liquid crystal indicator described in claim 4 is characterized in that,

Have deposit corresponding with each of temperature in the multiple arrangement, by the video data of current vertical cycle and the table storer that increases the weight of transformation parameter of the vision signal appointment before 1 vertical cycle,

The described converter unit that increases the weight of has comparative result according to temperature detection result in the switching temperature of the transform method decision of adopting and the described device in the conversion process of the converter unit of described interlacing-line by line, with the described transformation parameter of reading from described table storer that increases the weight of, the video data after the described conversion is implemented the operational part that increases the weight of computing.

9. the liquid crystal indicator described in claim 8 is characterized in that, has

To temperature data, implement the operational part of regulation computing of each decision of described a plurality of methods as temperature detection result in the described device;

To implementing the comparing section that temperature data that obtains after the described computing and the defined threshold temperature data that is predetermined compare; And

According to the result of described comparison, produce switching and control the described control signal efferent that increases the weight of the switch-over control signal of transformation parameter.

10. the liquid crystal indicator described in claim 8 is characterized in that, has

To as the temperature data of temperature detection result in the described device and the comparing section that compares by the defined threshold temperature data of each decision of described a plurality of transform methods; And

11. the signal processing apparatus of a liquid crystal indicator has

Interlaced video signal is transformed into the converter unit of progressive-scan video signal; And

Current vertical cycle vision signal is proofreaied and correct,, it is characterized in that so that increase the weight of the correcting unit that the gray scale of at least 1 vertical cycle front and back of described progressive-scan video signal is moved,

Described converter unit can carry out conversion with a plurality of transform methods,

According to the transform method of described converter unit, the gray scale migration of changing described correcting unit increases the weight of degree.

12. the signal processing apparatus of the liquid crystal indicator described in claim 11 is characterized in that,

Described a plurality of transform method comprises the 1st method of carrying out motion detection between the field and the 2nd transform method that carries out conversion by certain step no matter field-free activity arranged,

When described converter unit utilized described the 2nd transform method to carry out conversion, it is little that Billy changes described correcting unit when carrying out conversion with described the 1st transform method gray scale migration increases the weight of degree.

13. the signal processing apparatus of the liquid crystal indicator described in claim 11 is characterized in that,

Described a plurality of transform method comprises the 1st method of the movable line translation of going forward side by side between the prediction field and the 2nd transform method that carries out conversion by certain step no matter field-free activity arranged,

14. the signal processing apparatus of the liquid crystal indicator described in claim 11 is characterized in that,

Described a plurality of transform method comprises with the 1st method of carrying out conversion with reference to other the mode of vision signal with not carrying out the 2nd transform method of conversion with reference to other mode,

15. the signal processing apparatus of the liquid crystal indicator described in claim 12,13 or 14 is characterized in that,

Described the 2nd transform method is to be averaged or to be with weightedly by the vision signal in duplicating certain or to all vision signals in certain to be averaged, and relevant video signal conversion is become the method for progressive-scan video signal.

16. the signal processing apparatus as each described liquid crystal indicator in the claim 11 to 14 is characterized in that,

Described correcting unit is provided with the vision signal of a plurality of storages before by described at least 1 vertical cycle and the table storer that increases the weight of transformation parameter of the vision signal appointment of current vertical cycle,

Switch the table storer of described correcting unit reference by transform method, change described gray scale migration and increase the weight of degree according to described converter unit.

17. the signal processing apparatus as each described liquid crystal indicator in the claim 11 to 14 is characterized in that,

Described correcting unit is provided with the vision signal of storage before by described at least 1 vertical cycle and the table storer that increases the weight of transformation parameter of the vision signal appointment of current vertical cycle; And

According to described gray scale migration increase the weight of degree adjust with reference to described table storer decision, to the adjustment unit of the correcting value of the vision signal of current vertical cycle.

18. the signal processing apparatus as each described liquid crystal indicator in the claim 11 to 14 is characterized in that,

Except that the transform method of above-mentioned converter unit, also the gray scale migration of changing described correcting unit according to temperature in the device increases the weight of degree.

19. the signal processing apparatus of the liquid crystal indicator described in claim 18 is characterized in that,

Described correcting unit is provided with the vision signal of a plurality of storages before by described at least 1 vertical cycle and the table storer that increases the weight of transformation parameter of the vision signal appointment of current vertical cycle, and

Switch the table storer of described correcting unit reference by transform method and the interior temperature of device, change described gray scale migration and increase the weight of degree according to described converter unit.

20. the signal processing apparatus of the liquid crystal indicator described in claim 18 is characterized in that,

Described correcting unit also has adjustment to the adjustment unit of reference by the correcting value of the current vertical cycle vision signal of any decision in the described table storer, and

Adjustment degree by making described adjustment unit is with temperature change in the device, and switches the table storer of described correcting unit reference according to the transform method of described converter unit simultaneously, changes described gray scale migration and increases the weight of degree.

21. the signal processing apparatus of the liquid crystal indicator described in claim 18 is characterized in that,

At least a portion of shared described a plurality of table storeies between a plurality of transform methods of described converter unit, and

By switching the table storer of described correcting unit reference, and simultaneously switch the described temperature of respectively showing storer, change described gray scale migration and increase the weight of degree according to the transform method change of described converter unit according to temperature in the device.

22. the signal processing apparatus of the liquid crystal indicator described in claim 21 is characterized in that,

Switch the described storer of respectively showing, feasible only when described converter unit carries out conversion with prescriptive procedure, being able to reference to the part in described a plurality of table storeies.

23. the signal processing apparatus of a liquid crystal indicator is characterized in that,

Have the converter unit that interlaced video signal is transformed into progressive-scan video signal, and relevant progressive-scan video signal is modulated, so that increase the weight of the gray scale migration of each pixel of liquid crystal indicator,

According to the transform method of described converter unit, change the degree that described gray scale migration increases the weight of.

24. a liquid crystal indicator is characterized in that,

Signal processing apparatus with each described liquid crystal indicator in claim 11 to 14 or 23.

25. a liquid crystal indicator is characterized in that,

Have inputting video data when being interlace signal according to the some transform methods in a plurality of transform methods, this interlace signal is transformed into the converter unit of the interlacing of progressive signal-line by line,

This liquid crystal indicator is according to the video data before at least 1 vertical cycle and the video data of current vertical cycle, the video data of supplying with LCD panel is increased the weight of conversion, so that increase the weight of the gray scale migration of at least 1 vertical cycle front and back of described progressive signal, thereby compensate the optical response of described LCD panel, and

26. a liquid crystal display control method is characterized in that,

By the video data of supplying with described LCD panel being increased the weight of conversion according to the video data before at least 1 vertical cycle and the video data of current vertical cycle, compensate the optical response of described LCD panel, have following steps:

When being interlace signal, inputting video data, this interlace signal is transformed into the step of progressive signal according to the some methods in a plurality of transform methods; And

Carry out current vertical cycle video data increase the weight of conversion so that increase the weight of the step of the gray scale migration before and after at least 1 vertical cycle of described progressive-scan video signal,

27. a liquid crystal display control method comprises following steps:

Interlaced video signal is transformed into the shift step of progressive-scan video signal; And

Proofread and correct the vision signal of current vertical cycle,, it is characterized in that so that increase the weight of the aligning step that the gray scale of at least 1 vertical cycle front and back of described progressive-scan video signal is moved,

Described shift step can be carried out conversion with a plurality of methods,

Comprise the transform method according to described shift step, the gray scale migration of changing described aligning step increases the weight of the controlled step of degree.

28. liquid crystal display control method, comprise the shift step that interlaced video signal is transformed into progressive-scan video signal, and this progressive-scan video signal is modulated, so that the migration of the gray scale of each pixel of correcting liquid crystal display device, it is characterized in that

Described shift step can be carried out conversion with a plurality of methods,

According to the transform method of described shift step, change described gray scale migration and increase the weight of degree.

29. a liquid crystal display control method is characterized in that,

According to the some methods in a plurality of transform methods, this interlace signal is transformed into the shift step of the interlacing of progressive signal-line by line when comprising inputting video data and being interlace signal,

By the video data of supplying with described LCD panel being increased the weight of conversion according to the video data before at least 1 vertical cycle and the video data of current vertical cycle, compensate the optical response of described LCD panel,