CN111128077B - Gamma debugging method and device, gamma debugging equipment and medium - Google Patents
Gamma debugging method and device, gamma debugging equipment and medium Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
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Abstract
A gamma debugging method, device, equipment and medium, the gamma debugging method includes: the method comprises the steps of obtaining a plurality of gray stages obtained by dividing a gray scale range supported by a display module, and a plurality of voltage ranges which are obtained by dividing a control voltage and correspond to the gray scale sections one by one; for each gray stage, adjusting the control voltage in the voltage range corresponding to the gray stage for the gray level binding point of the gray stage, so that the brightness value of the gray level binding point of the gray stage reaches the corresponding target brightness value. According to the scheme provided by the embodiment, the gray scale is divided into the plurality of gray stages, the control voltage is divided into the plurality of voltage ranges, and the gamma debugging is respectively carried out, so that the change of the control voltage is more detailed in the low gray stage, the obtained control voltage is more accurate, and the display effect is more exquisite.
Description
Technical Field
The present disclosure relates to display technologies, and in particular, to a gamma debugging method and apparatus, a gamma debugging device, and a medium.
Background
As the proportion of the AMOLED (Active-matrix Organic Light-Emitting Diode) in the display industry increases year by year, the industry is also known by more and more people, and the technical requirements for the AMOLED are higher and higher. More stringent requirements are put on the phenomenon that the Panel of the AMOLED has more common problems in low gray scale. The undesirable effect for low gray scale display mainly occurs in Digital Gamma.
Disclosure of Invention
The embodiment of the application provides a gamma debugging method, a gamma debugging device, gamma debugging equipment and a gamma debugging medium, which are used for reducing color cast and improving the display effect.
The embodiment of the application provides a gamma debugging method, which comprises the following steps:
the method comprises the steps of obtaining a plurality of gray stages obtained by dividing a gray scale range supported by a display module, and a plurality of voltage ranges which are obtained by dividing a control voltage and correspond to the gray scale sections one by one;
for each gray stage, adjusting the control voltage in the voltage range corresponding to the gray stage for the gray level binding point of the gray stage, so that the brightness value of the gray level binding point of the gray stage reaches the corresponding target brightness value.
In an exemplary embodiment, the plurality of gray scale segments includes:
a low gray stage from the minimum gray scale to a first preset gray scale and a high gray stage from a second preset gray scale to a maximum gray scale; the second preset is one gray scale larger than the first preset gray scale;
the plurality of voltage ranges includes: a first voltage range corresponding to the low gray phase and a second voltage range corresponding to the high gray phase.
In an exemplary embodiment, for each gray phase, for the gray level binding point of the gray phase, adjusting the control voltage within the voltage range corresponding to the gray level segment so that the brightness value of the gray level binding point of the gray phase reaches the corresponding target brightness value includes:
for the low-gray stage, adjusting the control voltage in the first voltage range for gray scale binding points of the low-gray stage, so that the brightness value of the gray scale binding points of the low-gray stage reaches the corresponding target brightness value;
and for the high-gray stage, adjusting the control voltage in the second voltage range for gray scale binding points of the high-gray stage, so that the brightness value of the gray scale binding points of the high-gray stage reaches the corresponding target brightness value.
In an exemplary embodiment, the number of gray scale binding groups in the low gray phase is greater than the number of gray scale binding groups in the high gray phase, wherein gray scale binding points corresponding to the same backlight brightness are taken as one group.
In an exemplary embodiment, the first predetermined gray scale value range is 30 to 100.
In an exemplary embodiment, the first voltage range is 7.6 volts to 6 volts and the second voltage range is 6 volts to 1 volt.
The embodiment of the application provides a gamma debugging device, includes:
the storage module is used for storing a plurality of gray stages obtained by dividing a gray scale range supported by the display module and controlling a plurality of voltage ranges which are obtained by dividing a voltage and correspond to the gray scale stages one by one;
and the debugging module is set to adjust the control voltage in the voltage range corresponding to the gray scale section for the gray scale binding point of each gray stage, so that the brightness value of the gray scale binding point of the gray stage reaches the corresponding target brightness value.
In an exemplary embodiment, the plurality of gray scale segments includes:
a low gray stage from the minimum gray scale to a first preset gray scale and a high gray stage from a second preset gray scale to a maximum gray scale; the second preset is one gray scale larger than the first preset gray scale;
the plurality of voltage ranges includes: a first voltage range corresponding to the low gray phase and a second voltage range corresponding to the high gray phase.
The embodiment of the application provides gamma debugging equipment, which comprises a memory and a processor, wherein the memory stores a program, and the program is read by the processor and executed to realize the gamma debugging method.
The embodiment of the present application provides a medium, on which a computer program that can run on a processor is stored, and when being executed by the processor, the computer program implements the steps of the above gamma debugging method.
Compared with the prior art, the gamma debugging method comprises the steps of obtaining a plurality of gray stages obtained by dividing the gray scale range supported by a display module, and obtaining a plurality of voltage ranges which are obtained by dividing the control voltage and correspond to the gray scale sections one by one; for each gray stage, adjusting the control voltage in the voltage range corresponding to the gray stage for the gray level binding point of the gray stage, so that the brightness value of the gray level binding point of the gray stage reaches the corresponding target brightness value. According to the scheme provided by the embodiment, the gray scale is divided into the plurality of gray stages, the control voltage is divided into the plurality of voltage ranges, and the gamma debugging is respectively carried out, so that the change of the control voltage is more detailed in the low gray stage, the obtained control voltage is more accurate, and the display effect is more exquisite.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
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The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a flowchart of a gamma debugging method according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a Gamma curve in a high gray scale mode according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a Gamma curve in a low gray scale mode according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a Gamma curve in a high gray scale mode according to another embodiment of the present application;
FIG. 5 is a schematic diagram of a low gray scale mode Gamma curve according to another embodiment of the present application;
FIG. 6 is a block diagram of a gamma debugging apparatus according to an embodiment of the present disclosure;
FIG. 7 is a block diagram of a gamma debugging apparatus provided in an embodiment of the present application;
fig. 8 is a block diagram of a medium provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In order to improve the display effect of a Panel, an embodiment of the present application provides a Gamma debugging method, in which a gray scale range supported by a display module is divided into a plurality of gray stages, and correspondingly, a control voltage is divided into a plurality of voltage ranges, which are respectively in one-to-one correspondence with gray scale segments, and Gamma debugging is performed on each gray scale segment.
As shown in fig. 1, an embodiment of the present application provides a gamma debugging method, including:
the display module can be an AMOLED display screen or other display screens needing gamma debugging.
And 102, for each gray stage, adjusting control voltage for the gray level binding points of the gray stage in the voltage range corresponding to the gray level stage, so that the brightness value of the gray level binding points of the gray stage reaches the corresponding target brightness value.
The purpose of gamma adjustment is to adjust the brightness of the display module to a target value, usually the brightness is adjusted according to a gamma value 2.2 curve, usually the register value corresponding to each gray scale of the red, green and blue sub-pixels is adjusted, so that the optical parameters of the display module, such as the brightness, are adjusted to the corresponding target value. The gamma debugging method for each sub-pixel (such as red, green and blue sub-pixels) of the display module to be corrected is completely the same. Therefore, the debugging of each color is not described later, and only the general process of the gamma debugging method is described.
According to the scheme provided by the embodiment, the gray scale is divided into the plurality of gray stages, the control voltage is divided into the plurality of voltage ranges, and the gamma debugging is respectively carried out, so that the change of the control voltage is more detailed in the low gray stage, the obtained control voltage is more accurate, and the display effect is more exquisite. In the process of digital Gamma debugging, the number of bits for Gamma debugging (Gamma Tuning) is generally: 10bit to 12 bit. In this case, the control voltage in the low-ash phase is likewise divided into 210—212(1024-4095) parts, 2 for all voltage ranges10—212And (1024-4095) parts of the liquid crystal display screen are fine and smooth in display effect, and the display effect is improved.
In an exemplary embodiment, the plurality of gray scale segments includes:
a low gray stage from the minimum gray scale to a first preset gray scale and a high gray stage from a second preset gray scale to a maximum gray scale; the second preset is one gray scale larger than the first preset gray scale; the minimum gray scale is 0, the maximum gray scale is 255, and the first predetermined gray scale is 39. The low gray level is 0-39, and the high gray level is 40-255.
The plurality of voltage ranges includes: a first voltage range corresponding to the low gray phase and a second voltage range corresponding to the high gray phase. The first voltage range and the second voltage range do not overlap each other (do not overlap each other except for the boundary point). The voltage of the first voltage range is greater than the voltage of the second voltage range. The first voltage range and the second voltage range may be determined experimentally. When the control voltage is 7.6V to 1V, the first voltage range is, for example, 7.6V to 6V, and the second voltage range is 6V to 1V. Of course, the first voltage range may be 7.6V to nV, the second voltage range is nV to 1V, and n is 4-6.
In an exemplary embodiment, the first predetermined gray scale value range is 30 to 100.
It should be noted that the plurality of gray scale segments may be three or more gray scale segments.
In an exemplary embodiment, for each gray phase, for the gray level binding point of the gray phase, adjusting the control voltage within the voltage range corresponding to the gray level segment so that the brightness value of the gray level binding point of the gray phase reaches the corresponding target brightness value includes:
for the low-gray stage, adjusting the control voltage in the first voltage range for gray scale binding points of the low-gray stage, so that the brightness value of the gray scale binding points of the low-gray stage reaches the corresponding target brightness value; and the target brightness value is the brightness value corresponding to the gray scale binding point in the target gamma curve.
And for the high-gray stage, adjusting the control voltage in the second voltage range for gray scale binding points of the high-gray stage, so that the brightness value of the gray scale binding points of the high-gray stage reaches the corresponding target brightness value.
The resulting control voltage of the debug is stored in a gamma register. It should be noted that, the red, green and blue colors all have corresponding gamma registers, and are respectively debugged to obtain corresponding gamma register values. The commissioning method is the same, and therefore only commissioning of one color is described subsequently.
In an exemplary embodiment, the number of gray scale binding groups in the low gray phase is greater than the number of gray scale binding groups in the high gray phase, wherein gray scale binding points corresponding to the same backlight brightness are taken as one group. After the display module is applied to the display device, the display module can display under different backlight brightness, and gamma debugging can be carried out on gray scales under different backlight brightness in order to ensure the display effect of the display module under different backlight brightness. Under each backlight brightness, a part of gray scales are selected for debugging, the selected gray scales are gray scale binding points, and the gray scale binding points under the same backlight brightness are used as a group (Band). In this embodiment, more bands are debugged in the low gray stage. When linear interpolation is carried out between Band and Band, green fading between Band and Band (common in 32 gray scale) occurs because green pixels in Panel materials are subjected to mutation. In the embodiment, more bands are debugged in the low gray stage, so that the green situation is reduced, and the color cast is reduced.
In an exemplary embodiment, the Gamma debugging is Digital Gamma (Digital Gamma) debugging. The biggest disadvantage of the Digital Gamma compared with the Analog Gamma is that the display effect is not good at low gray scale and the color cast is serious. After the scheme of the embodiment is applied, the color cast of low gray scales is reduced, and the display effect is improved.
The application is further illustrated by the following specific examples.
In this embodiment, during the debugging process, the 0-255 gray scale is divided into two sections: the low-ash stage of 0-39 and the high-ash stage of 40-255 are respectively used for Gamma debugging. And the display effect of Gamma is optimized by reducing Spec of the Source voltage.
During the debugging of Digital Gamma, the number of bits of Gamma Tuning is generally: 10bit to 12 bit. Spec of Source voltage: 1V to 7.6V. In the related art debugging process, 1V-7.6V is divided into 210—212(1024-4095), because the brightness difference of the low gray scale is very small, the effect is not ideal and the fineness is not enough. Therefore, in this embodiment, the Gamma is divided into two segments, that is, the voltage for controlling Source (1V-7.6V) and the adjusted gray scale (0-255) are divided into two segments, which includes:
high gray scale section: the Gray levels (40-255 Gray) have control voltages (i.e., Source voltages) of: VGMP: 6.0V-VGSP: 1.0V;
a low ash stage: gray levels (0-39 Gray), the control voltages (i.e., Source voltages) of which are VGMP: 7.6V-VGSP: 6.0V. Low gray scale Source Voltage (7.6V)6.0V) likewise divided into 210—212(1024-4095) portions, the display effect is fine.
Aiming at the problem of poor low-gray-scale light emitting effect, the method can be simply divided into low-gray-scale mode gray-scale modes, for example 6.39, and the total number is 4 bands.
As shown in fig. 2, in the high gray scale mode, 4 bands are respectively corresponding to 4 item Gamma curves 21-24, each Band corresponds to a backlight brightness, and the control voltage is varied from 6.0V to 1V. For each gray scale binding point (not shown in the figure) to be debugged of the Band, adjusting the control voltage to change between 6.0V and 1V, so that the brightness reaches the brightness in the target Gamma curve corresponding to the Band, recording the control voltage value, and writing the control voltage value into the corresponding Gamma register. The gray scale binding points to be debugged can be selected from 40-255 as required, the gray scale binding points of different bands can be different, and the Gamma register values of other gray scales are obtained by interpolation of the Gamma register values of the debugged gray scale binding points.
As shown in fig. 3, in the low gray scale mode, 4 bands are respectively corresponding to 4 entries of standard Gamma curves 31-34, each Band corresponds to a backlight brightness, and the control voltage varies from 7.6V to 6V. For each gray level binding point (not shown in the figure) to be debugged of the Band, adjusting the control voltage to change between 7.6V and 6V, so that the brightness reaches the brightness in the target Gamma curve corresponding to the Band, recording the control voltage value, and writing the control voltage value into the corresponding Gamma register. The gray scale binding points to be debugged can be selected from 0 to 39 according to requirements, the gray scale binding points of different bands can be different, and the Gamma register values of other gray scales are obtained by interpolation of the Gamma register values of the debugged gray scale binding points. Wherein, the curve 31 and the curve 21 may correspond to the same backlight brightness, the curve 32 and the curve 22 may correspond to the same backlight brightness, the curve 33 and the curve 23 may correspond to the same backlight brightness, and the curve 34 and the curve 24 may correspond to the same backlight brightness.
In the debugging process of Gamma, taking 7.1Ocean as an example, the display effect is not ideal except for the common low gray scale display effect, and the green color between Band and Band can also appear below 32 gray scale. When linear interpolation is carried out between Band and Band, a green phenomenon can occur because green pixels in Panel materials are subjected to mutation. Thus, in another embodiment, during the debugging process, the 0-255 gray levels are divided into two segments: and (3) performing Gamma debugging respectively in the low gray stage of 0-39 and the high gray stage of 40-255 correspondingly, thereby optimizing the display effect of Gamma by reducing Spec of Source voltage. In addition, in the low gray scale mode, Band is also increased, thereby reducing color shift.
As shown in fig. 4, in the high gray scale mode, 4 bands are respectively corresponding to 4 item Gamma curves 41-44, each Band corresponds to a backlight brightness, and the control voltage is varied from 6.0V to 1V. For each gray scale binding point (not shown in the figure) to be debugged of the Band, adjusting the control voltage to change between 6.0V and 1V, so that the brightness reaches the brightness in the target Gamma curve corresponding to the Band, recording the control voltage value, and writing the control voltage value into the corresponding Gamma register. The gray scale binding points to be debugged can be selected from 40-255 as required, the gray scale binding points of different bands can be different, and the Gamma register values of other gray scales are obtained by interpolation of the Gamma register values of the debugged gray scale binding points.
As shown in FIG. 5, in the low gray level mode, a total of 7 bands are respectively corresponding to the 7-entry Gamma curves 51-54, and the curves 512, 523 and 534. Each Band corresponds to a backlight brightness, and the control voltage varies from 7.6V to 6V, in this embodiment, in the low gray scale mode, a new set of bands is added between bands and 3 bands are added, which correspond to curves 512, 523 and 534, respectively, where, at the same gray scale, the brightness on curve 512 is between the brightness on curve 51 and the brightness on curve 52, the brightness on curve 523 is between the brightness on curve 52 and the brightness on curve 53, and the brightness on curve 534 is between the brightness on curve 53 and the brightness on curve 54. For each gray level binding point (not shown in the figure) to be debugged of the Band, adjusting the control voltage to change between 7.6V and 6V, so that the brightness reaches the brightness in the target Gamma curve corresponding to the Band, recording the control voltage value, and writing the control voltage value into the corresponding Gamma register. The gray scale binding points to be debugged can be selected from 0 to 39 according to requirements, the gray scale binding points of different bands can be different, and the Gamma register values of other gray scales are obtained by interpolation of the Gamma register values of the debugged gray scale binding points. Wherein, the curve 51 and the curve 41 may correspond to the same backlight brightness, the curve 52 and the curve 42 may correspond to the same backlight brightness, the curve 53 and the curve 43 may correspond to the same backlight brightness, and the curve 54 and the curve 44 may correspond to the same backlight brightness. It should be noted that the newly added Band is only an example, more or less bands may be added according to needs, and the position of the target Gamma curve corresponding to the added bands may also be changed, and may be set according to needs. According to the scheme provided by the embodiment, the number of binding points under low gray scale is increased, the Spec range of the Source voltage value is smaller, the Gamma value obtained by an interpolation algorithm is very accurate, the color cast is reduced, the display under low gray scale is finer and clearer, and the display effect is improved.
In addition, Gamma values in various modes such as 60Hz, 90Hz, AOD (Always on Display), etc. may be stored, and the number of Gamma curves may be increased.
As shown in fig. 6, an embodiment of the present application provides a gamma debugging apparatus, including:
the storage module 601 is configured to store a plurality of gray stages obtained by dividing a gray scale range supported by the display module, and a plurality of voltage ranges obtained by controlling voltage division and corresponding to the gray scale stages one by one;
the debugging module 602 is configured to, for each gray stage, adjust the control voltage for the gray level tie point of the gray stage within the voltage range corresponding to the gray level stage, so that the brightness value of the gray level tie point of the gray stage reaches the corresponding target brightness value.
In an exemplary embodiment, the plurality of gray scale segments includes:
a low gray stage from the minimum gray scale to a first preset gray scale and a high gray stage from a second preset gray scale to a maximum gray scale; the second preset is one gray scale larger than the first preset gray scale;
the plurality of voltage ranges includes: a first voltage range corresponding to the low gray phase and a second voltage range corresponding to the high gray phase.
The beneficial effects of the gamma debugging device of the embodiment of the invention are the same as the effective effects of the gamma debugging method, and are not repeated.
As shown in fig. 7, an embodiment of the present application provides a gamma debugging apparatus 70, which includes a memory 710 and a processor 720, where the memory stores a program, and the program, when read and executed by the processor, implements the above gamma debugging method.
As shown in fig. 8, an embodiment of the present application provides a medium 80, on which a computer program 810 executable on a processor is stored, wherein the computer program 810 realizes the steps of the gamma debugging method when being executed by the processor.
Without conflict, embodiments of the present invention and features of the embodiments may be combined with each other to arrive at new embodiments.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A gamma debugging method, comprising:
the method comprises the steps of obtaining a plurality of gray stages obtained by dividing a gray scale range supported by a display module, and a plurality of voltage ranges which are obtained by dividing a control voltage and correspond to the gray scale sections one by one;
the plurality of gray scale segments include: a low gray stage from the minimum gray scale to a first preset gray scale and a high gray stage from a second preset gray scale to a maximum gray scale; the second preset is one gray scale larger than the first preset gray scale; the plurality of voltage ranges includes: a first voltage range corresponding to the low gray phase and a second voltage range corresponding to the high gray phase; the first voltage range is divided into 212Preparing;
for each gray stage, adjusting the control voltage in the voltage range corresponding to the gray stage for gray level binding points of the gray stage, so that the brightness value of the gray level binding points of the gray stage reaches the corresponding target brightness value, wherein the gray level binding points are selected for debugging under each backlight brightness.
2. The gamma adjustment method of claim 1, wherein for each gray phase, adjusting the control voltage within the voltage range corresponding to the gray level segment for the gray level binding point of the gray phase such that the brightness value of the gray level binding point of the gray phase reaches the corresponding target brightness value comprises:
for the low-gray stage, adjusting the control voltage in the first voltage range for gray scale binding points of the low-gray stage, so that the brightness value of the gray scale binding points of the low-gray stage reaches the corresponding target brightness value;
and for the high-gray stage, adjusting the control voltage in the second voltage range for gray scale binding points of the high-gray stage, so that the brightness value of the gray scale binding points of the high-gray stage reaches the corresponding target brightness value.
3. The gamma debugging method of claim 1, wherein the number of gray scale binding groups in the low gray phase is greater than the number of gray scale binding groups in the high gray phase, wherein gray scale binding points corresponding to the same backlight brightness are taken as a group.
4. The gamma debugging method of any one of claims 1 to 3, wherein the first predetermined gray level is in a range of 30 to 100.
5. The gamma debugging method of any one of claims 1-3, wherein the first voltage range is 7.6 volts to 6 volts and the second voltage range is 6 volts to 1 volt.
6. A gamma debugging apparatus comprising:
the storage module is used for storing a plurality of gray stages obtained by dividing a gray scale range supported by the display module and controlling a plurality of voltage ranges which are obtained by dividing a voltage and correspond to the gray scale stages one by one;
the plurality of gray scale segments include: a low gray stage from the minimum gray scale to a first preset gray scale and a high gray stage from a second preset gray scale to a maximum gray scale; the second preset is one gray scale larger than the first preset gray scale; the plurality of voltage ranges includes: a first voltage range corresponding to the low gray stage and a second voltage range corresponding to the low gray stageA second voltage range of the high ash phase; the first voltage range is divided into 212Preparing;
and the debugging module is used for adjusting the control voltage in the voltage range corresponding to the gray scale section for the gray scale binding point of each gray stage so that the brightness value of the gray scale binding point of the gray stage reaches the corresponding target brightness value, wherein the gray scale binding point is the selected gray scale to be debugged under each backlight brightness.
7. A gamma debugging device comprising a memory and a processor, wherein the memory stores a program, and the program, when read and executed by the processor, implements the gamma debugging method according to any one of claims 1 to 5.
8. A medium on which a computer program is stored which is executable on a processor, the computer program, when executed by the processor, implementing the steps of the gamma debugging method according to any one of claims 1 to 5.
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| CN111968580B (en) * | 2020-09-08 | 2022-10-11 | 京东方科技集团股份有限公司 | Gamma debugging method, gamma debugging device and storage medium |
| CN112071264B (en) * | 2020-09-09 | 2022-06-24 | 北京集创北方科技股份有限公司 | Gamma correction method and device |
| CN112735347A (en) * | 2020-12-30 | 2021-04-30 | Tcl华星光电技术有限公司 | Overvoltage compensation method and device, display panel and storage medium |
| CN116153225A (en) * | 2023-02-28 | 2023-05-23 | 昆山国显光电有限公司 | Driving method and driving device of display panel and display driving chip |
| CN116741098B (en) * | 2023-06-01 | 2024-05-10 | 上海傲显科技有限公司 | Brightness adjusting method and storage medium |
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