CN101609649A - A kind of method of adjusting liquid crystal display equipment screen brightness - Google Patents
A kind of method of adjusting liquid crystal display equipment screen brightness Download PDFInfo
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- CN101609649A CN101609649A CNA2008100678993A CN200810067899A CN101609649A CN 101609649 A CN101609649 A CN 101609649A CN A2008100678993 A CNA2008100678993 A CN A2008100678993A CN 200810067899 A CN200810067899 A CN 200810067899A CN 101609649 A CN101609649 A CN 101609649A
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Abstract
The present invention is applicable to LCD, a kind of method of adjusting liquid crystal display equipment screen brightness is provided, described method comprises the steps: a. in LCD display in start-up time, and the MCU of LCD display one by one reads dynamic parameter value by group according to the time interval of setting and composes to its corresponding register from storer; B. described LCD display is adjusted display effect according to described dynamic parameter value, makes its screen intensity value keep constant.Technical scheme provided by the invention makes the screen intensity of LCD display remain within the constant scope, guarantees user's the comfort level of watching, and avoids the user manually to regulate the trouble of contrast, brightness and backlighting parameters repeatedly in order to obtain better to watch brightness.
Description
Technical field
The invention belongs to lcd technology, relate in particular to a kind of method that liquid crystal display equipment screen brightness is adjusted of adjusting.
Background technology
Along with the development of technology, (LCD TV) is frivolous with it for LCD TV, and screen is big, and space-saving characteristics will progressively replace traditional CRT (cold cathode ray tube) televisor.But at this stage, LCDTV also comes with some shortcomings, such as energy consumption is big, and color is bright-coloured not as good as CRT, and screen intensity is along with the time changes or the like.
As shown in Figure 1, As time goes on and automatically existing LCD TV screen intensity after start can brighten gradually, finally reaches a stationary value.Certainly, this is owing to the lcd screen self characteristics determines, this also just brings some problems:
If it is very high that the initial brightness of LCD TV, contrast are transferred, the brightness of TV is the custom of watching that meets human eye in the time of start so just, but As time goes on, TV brightness constantly raises, and can think that television image is dazzling;
If it is lower that the initial brightness of LCD TV, contrast are transferred, can think when so just beginning to see TV that image is dark especially, do not see people's object detail, As time goes on image brightens gradually, and brightness reaches watches requirement.
But no matter be the sort of situation, LCD TV image does not all meet people's the requirement of watching for some time.Except LCD TV, also there is same problem in other LCD display.
Summary of the invention
The object of the present invention is to provide a kind of method of adjusting liquid crystal display equipment screen brightness, be intended to solve the LCD screen intensity problem of unstable when start that exists in the prior art.
The present invention is achieved in that a kind of method of adjusting liquid crystal display equipment screen brightness, and described method comprises the steps:
A, in LCD display in start-up time, the MCU of LCD display one by one reads dynamic parameter value by group according to the time interval of setting and composes to its corresponding register from storer;
B, described LCD display are adjusted display effect according to described dynamic parameter value, make its screen intensity value keep constant.
Wherein comprise before the step a:
A0, at described LCD in start-up time, adjust described dynamic parameter value at interval according to described setting-up time, described LCD display is adjusted its display effect according to described dynamic parameter value, make the screen intensity value of described LCD display remain on steady state value LS, and will make described LCD display screen intensity keep the dynamic parameter value of constant correspondence to be stored in one by one in the described display by group at interval according to described setting-up time.
Described screen intensity steady state value is the screen intensity value of described LCD display when normally showing.
Wherein step a0 specifically comprises:
A01, in start-up time, measure the screen intensity value of described LCD display at described LCD, and with the screen intensity value L that measures and described LS relatively;
If a02 is L＜LS, then described dynamic parameter value to be heightened, described LCD display is adjusted its display effect according to described dynamic parameter value, changes step a01; If L=LS then is stored in described dynamic parameter value in the described storer by group, through described setting-up time at interval, change step a01.
Described setting-up time is spaced apart 1 second.
Described dynamic parameter value comprises contrast, brightness and backlighting parameters value.
Described LCD display is the LCD televisor.
The present invention overcomes the deficiencies in the prior art, start shooting to screen intensity in the constant process in LCD display (to call LCD display start-up time in the following text), adjust its contrast, brightness and backlight according to the change dynamics of screen intensity, the MCU of LCD display reads corresponding contrast, brightness and backlighting parameters value according to the time interval of setting and composes to relevant register from storer, make LCD display can keep the constant of screen intensity in start-up time.Technical scheme provided by the invention makes the screen intensity of LCD display remain within the constant scope, guarantees user's the comfort level of watching, and avoids the user manually to regulate the trouble of contrast, brightness and backlighting parameters repeatedly in order to obtain better to watch brightness.
Description of drawings
Fig. 1 is existing LCD TV screen intensity change curve;
Fig. 2 is the described LCD TV of the embodiment of the invention and computer, television signal generator and luminance test instrument connection diagram;
Fig. 3 is the described dynamic parameter process flow diagram that obtains of the embodiment of the invention;
Fig. 4 is an embodiment of the invention process flow diagram.
Embodiment
Technical scheme provided by the invention is: the screen intensity value LS when the detection screen intensity is constant, start shooting to screen intensity in stable time period (TS) in LCD display, going out to make this LCD display screen intensity value constant by apparatus measures is the needed contrast of LS, brightness and backlighting parameters value (to call dynamic parameter value in the following text), these contrasts, brightness and backlighting parameters value change with certain time interval, and contrast, brightness and backlight value parameter with each time interval correspondence during measurement are stored in the storer of LCD display; When LCD display was started shooting, the MCU of LCD display read corresponding contrast, brightness and backlighting parameters value according to the time interval of setting and composes to relevant register from storer, made can keep the constant of screen intensity in the LCD display start process.
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the embodiment of the invention, LCD is that example describes with the LCD TV, and other LCD also can adopt technical scheme provided by the present invention, and its principle is basic identical, and this does not give unnecessary details.
Concrete when using technical scheme provided by the invention, at first need to record the screen intensity value LS of screen intensity when constant, can realize by following method: provide 100% complete white field signal by television signal generator, give LCD TV with this signal, start (was no more than 2 hours at most more than one and a half hours, because LCD TV screen intensity stabilization time is never above 2 hours), constantly screen intensity is measured simultaneously, till screen intensity remains unchanged, record screen intensity value this moment, this value is LS.
In LCD TV section start-up time, go out to make this LCDTV TV screen brightness value constant by apparatus measures and be the needed contrast of LS, brightness and backlighting parameters value, specifically adopt following scheme:
Adopt mode as described in Figure 2 to be connected with computer, television signal generator and luminance test instrument LCD TV.Wherein television signal generator offers the white field signal of LCD TV 100%, the luminance test instrument is measured the screen intensity value of LCD TV in real time, and communication interface (in present embodiment use RS232 interface) the transmission telegram in reply brain of screen intensity data by the luminance test instrument handled, screen intensity value and LS that computer will detect in real time compare, according to the contrast of comparative result with LCD TV, brightness and backlight data are heightened, LCD TV is according to new contrast, brightness and backlight data are respectively to its contrast, brightness and backlight the adjustment, so that its screen intensity maintenance is constant, brightness when screen intensity of 1s record is constant simultaneously, contrast and numerical value backlight, and constantly repeat.
The process flow diagram of above-mentioned process specifically comprises following step as shown in Figure 3:
1, adopt mode as shown in Figure 2 to be connected computer, LCD TV, luminance test instrument and television signal generator;
2, television signal generator offers the white field signal of LCD TV 100%;
3, the luminance test instrument detects the screen intensity value L of LCD TV, and testing result L is transferred to computer;
4, computer compares L and LS, if L＜LS changes step 5, if L=LS changes step 6;
5, contrast, brightness and backlight data after computer will be heightened are transferred to LCD TV, and LCD TV adjusts its contrast, brightness and backlight respectively according to contrast, brightness and backlight data after heightening, change step 3;
6, contrast, brightness and backlight data are stored in the storer of LCD TV as one group of dynamic parameter value;
Does 7, the cumulative time surpass screen intensity TS stabilization time? if change step 9, otherwise change step 8;
8,, change step 3 through 1s;
9, process ends.
In above-mentioned process, computer will be that one second dynamic parameter value series stores into by group in the storer of LCD TV in the time interval, store many groups contrast, brightness and backlighting parameters value in the storer.
In the present embodiment, the time interval that the luminance test instrument detects LCD TV screen intensity is set at 1s, during practical application technical scheme provided by the invention, might not adopt the time interval of 1s, screen intensity was constant relatively when the setting in this time interval was watched TV with the user is as the criterion, simultaneously, following MCU need be consistent with the time interval of detecting to the time interval of corresponding register assignment.
Adopt above-mentioned scheme to obtain after a series of dynamic parameter value, LCD TV realizes contrast in its start process, brightness and adjustment backlight by following process, by contrast, brightness and adjustment backlight being made the screen intensity of LCD TV in start process keep constant, process flow diagram specifically comprises following step as shown in Figure 4:
1, LCD TV start, MCU reads first group of dynamic parameter value and composes register to correspondence from storer, adjust contrast, the brightness and backlight of LCD TV according to first group of parameter value;
2, through time interval of 1s, MCU reads next group dynamic parameter value and composes register to correspondence from storer, adjust contrast, the brightness and backlight of LCD TV according to next group dynamic parameter value;
3, be last group dynamic parameter value? if change step 4, otherwise change step 2;
4, process ends.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1, a kind of method of adjusting liquid crystal display equipment screen brightness is characterized in that, described method comprises the steps:
A, in LCD display in start-up time, the MCU of LCD display one by one reads dynamic parameter value by group according to the time interval of setting and composes to its corresponding register from storer;
B, described LCD display are adjusted display effect according to described dynamic parameter value, make its screen intensity value keep constant.
2, method according to claim 1 is characterized in that, wherein comprises before the step a:
A0, at described LCD in start-up time, adjust described dynamic parameter value at interval according to described setting-up time, described LCD display is adjusted its display effect according to described dynamic parameter value, make the screen intensity value of described LCD display remain on steady state value LS, and will make described LCD display screen intensity keep the dynamic parameter value of constant correspondence to be stored in one by one in the described display by group at interval according to described setting-up time.
3, method according to claim 2 is characterized in that, described screen intensity steady state value is the screen intensity value of described LCD display when normally showing.
4, method according to claim 2 is characterized in that, wherein step a0 specifically comprises:
A01, in start-up time, measure the screen intensity value of described LCD display at described LCD, and with the screen intensity value L that measures and described LS relatively;
If a02 is L＜LS, then described dynamic parameter value to be heightened, described LCD display is adjusted its display effect according to described dynamic parameter value, changes step a01; If L=LS then is stored in described dynamic parameter value in the described storer by group, through described setting-up time at interval, change step a01.
5, method according to claim 1 is characterized in that, described setting-up time is spaced apart 1 second.
6, method according to claim 1 is characterized in that, described dynamic parameter value comprises contrast, brightness and backlighting parameters value.
7, method according to claim 1 is characterized in that, described LCD display is the LCD televisor.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100678993A CN101609649A (en) | 2008-06-20 | 2008-06-20 | A kind of method of adjusting liquid crystal display equipment screen brightness |
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| CNA2008100678993A CN101609649A (en) | 2008-06-20 | 2008-06-20 | A kind of method of adjusting liquid crystal display equipment screen brightness |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298911A (en) * | 2010-06-28 | 2011-12-28 | 瀚宇彩晶股份有限公司 | Methods for improving stability and contrast of display device |
| CN103325355A (en) * | 2013-06-18 | 2013-09-25 | 华南理工大学 | Method for dynamically adjusting backlight brightness based on image content |
| CN103531166A (en) * | 2010-06-28 | 2014-01-22 | 瀚宇彩晶股份有限公司 | Method for improving image contrast of display device |
| CN103716714A (en) * | 2013-12-04 | 2014-04-09 | 乐视致新电子科技（天津）有限公司 | Data display method and apparatus |
| CN105206217A (en) * | 2015-10-27 | 2015-12-30 | 京东方科技集团股份有限公司 | Display processing method and device as well as display device |
| CN105575340A (en) * | 2016-03-07 | 2016-05-11 | 合一智能科技（深圳）有限公司 | Backlight brightness control system and method |
| WO2016176966A1 (en) * | 2015-05-05 | 2016-11-10 | 惠州Tcl移动通信有限公司 | Method and system for adjusting screen brightness |
-
2008
- 2008-06-20 CN CNA2008100678993A patent/CN101609649A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298911A (en) * | 2010-06-28 | 2011-12-28 | 瀚宇彩晶股份有限公司 | Methods for improving stability and contrast of display device |
| CN103531166A (en) * | 2010-06-28 | 2014-01-22 | 瀚宇彩晶股份有限公司 | Method for improving image contrast of display device |
| CN103325355A (en) * | 2013-06-18 | 2013-09-25 | 华南理工大学 | Method for dynamically adjusting backlight brightness based on image content |
| CN103325355B (en) * | 2013-06-18 | 2016-01-20 | 华南理工大学 | A kind of method of image content-based dynamic adjustments backlight illumination |
| CN103716714A (en) * | 2013-12-04 | 2014-04-09 | 乐视致新电子科技（天津）有限公司 | Data display method and apparatus |
| WO2016176966A1 (en) * | 2015-05-05 | 2016-11-10 | 惠州Tcl移动通信有限公司 | Method and system for adjusting screen brightness |
| US9858895B2 (en) | 2015-05-05 | 2018-01-02 | Huizhou Tcl Mobile Communication Co., Ltd. | Method for adjusting screen brightness and system thereof |
| CN105206217A (en) * | 2015-10-27 | 2015-12-30 | 京东方科技集团股份有限公司 | Display processing method and device as well as display device |
| WO2017071472A1 (en) * | 2015-10-27 | 2017-05-04 | 京东方科技集团股份有限公司 | Display processing method and apparatus, and display device |
| CN105206217B (en) * | 2015-10-27 | 2018-02-06 | 京东方科技集团股份有限公司 | display processing method, device and display device |
| CN105575340A (en) * | 2016-03-07 | 2016-05-11 | 合一智能科技（深圳）有限公司 | Backlight brightness control system and method |
| WO2017152614A1 (en) * | 2016-03-07 | 2017-09-14 | 合一智能科技（深圳）有限公司 | System and method for controlling luminance of backlight source |
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Application publication date: 20091223 |