CN109949744B - Gamma voltage correction method and device - Google Patents
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Abstract
The invention provides a gamma voltage correction method and a gamma voltage correction device, and belongs to the technical field of display. The gamma voltage correction method comprises the following steps: dividing a display screen of the display module into N regions, wherein N is an integer greater than 1; selecting N test regions from N regions, wherein the rows and the columns of the N test regions are different; and adjusting the gray scale of each test area to be a binding point gray scale, wherein the binding point gray scales corresponding to different test areas are different, inputting an RGB register initial value into each test area, acquiring the optical parameters of each test area, and adjusting the RGB register value of each test area to ensure that the optical parameters of each test area fall within the error range of the target value of the optical parameters. The technical scheme of the invention can solve the problem of overlong gamma correction time in the prior art and improve the production efficiency.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a gamma voltage correction method and apparatus.
Background
With the development of AMOLED (Active-matrix organic light emitting diode) display technology, more and more electronic products begin to use AMOLED display screens. However, there are still some difficulties to be overcome in the production process of the AMOLED display screen, one of which is the adjustment of the optical parameters of the AMOLED display screen.
Because the display screen is adapted to the sensitivity of human eyes under different brightness, and the conventional AMOLED process is difficult to ensure good consistency among the sheets, optical parameter adjustment needs to be performed on each AMOLED display screen, that is, gamma voltage correction needs to be performed on each AMOLED display screen.
The method for performing gamma voltage correction on the AMOLED product at present is to adjust optical parameters such as brightness, color coordinates and the like of each binding point gray scale (a corresponding adjustable gray scale in a driving chip, also called gray scale binding point) to corresponding target values one by one, but the binding point gray scale of a high-resolution display module at present generally reaches dozens, and each binding point gray scale needs to be adjusted for many times, so that the time for performing gamma correction is long, and the production efficiency is influenced.
Disclosure of Invention
The invention aims to provide a gamma voltage correction method and a gamma voltage correction device, which can solve the problem of overlong gamma correction time in the prior art and can improve the production efficiency.
To solve the above technical problem, embodiments of the present invention provide the following technical solutions:
in one aspect, a gamma voltage correction method is provided, including:
dividing a display screen of the display module into N regions, wherein N is an integer greater than 1;
selecting N test regions from N regions, wherein the rows and the columns of the N test regions are different;
and adjusting the gray scale of each test area to be a binding point gray scale, wherein the binding point gray scales corresponding to different test areas are different, inputting an RGB register initial value into each test area, acquiring the optical parameters of each test area, and adjusting the RGB register value of each test area to ensure that the optical parameters of each test area fall within the error range of the target value of the optical parameters.
Optionally, the optical parameters include brightness and color coordinates.
Optionally, the acquiring the optical parameters of each test area includes:
and acquiring a display picture of the display screen by using image acquisition equipment, and acquiring the optical parameters of each test area according to the acquired display picture.
Optionally, the optical parameter target value comprises a brightness target value, the method further comprises a step of obtaining the brightness target value of each test area, and the step of obtaining the brightness target value of each test area comprises:
adjusting the gray scales of the N test areas to be the highest gray scale, and adjusting the gray scales of other areas to be the lowest gray scale;
acquiring a display picture of the display screen by using image acquisition equipment, and respectively determining the brightness of each test area according to the acquired display picture as the reference brightness of each test area corresponding to the highest gray scale;
and calculating the brightness target value of the corresponding binding point gray scale according to the reference brightness of each test area.
Optionally, the adjusting the RGB register values of each test area so that the optical parameter of each test area falls within the error range of the target value of the optical parameter includes:
adjusting the G register value of each test area to enable the color coordinate y value of each test area to fall into the error range of the color coordinate y target value;
adjusting the B register value of each test area to enable the brightness value of each test area to fall into the error range of the brightness target value;
and adjusting the R register value of each test area, so that the color coordinate x value of each test area falls within the error range of the color coordinate x target value.
Optionally, N is the number of binding gray levels.
An embodiment of the present invention further provides a gamma voltage correction device, including:
the display module comprises a dividing module, a display module and a display module, wherein the dividing module is used for dividing a display screen of the display module into N regions, and N is an integer greater than 1;
the device comprises a selection module, a detection module and a control module, wherein the selection module is used for selecting N test regions from N regions, and the rows and the columns of the N test regions are different;
the correction module is used for adjusting the gray scale of each test area into a binding point gray scale, the binding point gray scales corresponding to different test areas are different, an RGB register initial value is input into each test area, the optical parameters of each test area are obtained, and the RGB register value of each test area is adjusted, so that the optical parameters of each test area fall within the error range of the target value of the optical parameters.
Optionally, the optical parameters include brightness and color coordinates.
Optionally, the apparatus further comprises:
the image acquisition equipment is used for acquiring a display picture of the display screen;
the correction module is specifically used for acquiring the optical parameters of each test area according to the acquired display picture.
Optionally, the optical parameter target value comprises a brightness target value, the apparatus further comprising:
a brightness target value obtaining module, configured to adjust the gray scales of the N test areas to be the highest gray scale, and adjust the gray scales of other areas to be the lowest gray scale; acquiring a display picture of the display screen by using image acquisition equipment, and respectively determining the brightness of each test area according to the acquired display picture as the reference brightness of each test area corresponding to the highest gray scale; and calculating the brightness target value of the corresponding binding point gray scale according to the reference brightness of each test area.
Optionally, the correction module comprises:
the first correction unit is used for adjusting the G register value of each test area, so that the color coordinate y value of each test area falls into the error range of the color coordinate y target value;
the second correction unit is used for adjusting the B register value of each test area, so that the brightness value of each test area falls into the error range of the brightness target value;
and the third correction unit is used for adjusting the R register value of each test area, so that the color coordinate x value of each test area falls into the error range of the color coordinate x target value.
An embodiment of the present invention further provides a gamma voltage correction device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the gamma voltage correction method as described above.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the gamma voltage correction method as described above.
The embodiment of the invention has the following beneficial effects:
in the scheme, the display screen of the display module is divided into N regions, N test regions are selected from the N regions, the gray scale of each test region is adjusted to be a binding point gray scale, and the RGB register value of each test region is adjusted, so that the optical parameters of each test region fall within the error range of the target value of the optical parameters, the N binding point gray scales can be adjusted simultaneously in a parallel mode, the gamma correction time can be greatly reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic flow chart illustrating a gamma voltage correction method according to an embodiment of the invention;
FIG. 2 is a block diagram of a gamma voltage calibration apparatus according to an embodiment of the present invention;
FIG. 3 is a diagram of a test frame 1 used in an embodiment of the present invention;
FIG. 4 is a diagram of a test frame 2 used in an embodiment of the present invention;
FIG. 5 is a flowchart illustrating an embodiment of adjusting optical parameters.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The method for correcting the gamma voltage of the AMOLED product at present is to adjust the gray scale of a display screen of a display module to a binding point gray scale, adjust the RGB register value and adjust the optical parameters of the display screen to a target value; then, the gray scale of the display screen of the display module is adjusted to the next binding point gray scale, the RGB register value is adjusted, the optical parameters of the display screen are adjusted to the target value, and by analogy, the optical parameters of the brightness, the color coordinates and the like of each binding point gray scale are adjusted to the corresponding target value one by one, but the binding point gray scale of the high-resolution display module generally reaches dozens at present, and each binding point gray scale needs to be adjusted for many times, so the time for gamma correction is long, and the production efficiency is influenced.
The embodiments of the present invention provide a gamma voltage correction method and device, which can solve the problem of too long gamma correction time in the prior art, and can improve the production efficiency.
An embodiment of the present invention provides a gamma voltage correction method, as shown in fig. 1, including:
step 101: dividing a display screen of the display module into N regions, wherein N is an integer greater than 1;
step 102: selecting N test regions from N regions, wherein the rows and the columns of the N test regions are different;
step 103: and adjusting the gray scale of each test area to be a binding point gray scale, wherein the binding point gray scales corresponding to different test areas are different, inputting an RGB register initial value into each test area, acquiring the optical parameters of each test area, and adjusting the RGB register value of each test area to ensure that the optical parameters of each test area fall within the error range of the target value of the optical parameters.
In this embodiment, the display screen of the display module is divided into N × N regions, N test regions are selected from the N × N regions, the gray scale of each test region is adjusted to be a binding point gray scale, and the RGB register value of each test region is adjusted, so that the optical parameter of each test region falls within the error range of the target value of the optical parameter.
Optionally, the optical parameters include brightness and color coordinates, and when the RGB register values of each test area are adjusted, the brightness and the color coordinates of each test area need to be within an error range of the target value, specifically, the target value of the color coordinates may be x ═ 0.313, y ═ 0.329, and the error range may be ± 0.03.
Optionally, the acquiring the optical parameters of each test area includes:
and acquiring a display picture of the display screen by using image acquisition equipment, and acquiring the optical parameters of each test area according to the acquired display picture.
The image acquisition equipment can be a color CCD (charge coupled device), and a display picture of the display screen can be acquired by photographing the display screen by using the color CCD.
Optionally, the optical parameter target value comprises a brightness target value, the method further comprises a step of obtaining the brightness target value of each test area, and the step of obtaining the brightness target value of each test area comprises:
adjusting the gray scales of the N test areas to be the highest gray scale, and adjusting the gray scales of other areas to be the lowest gray scale;
acquiring a display picture of the display screen by using image acquisition equipment, and respectively determining the brightness of each test area according to the acquired display picture as the reference brightness of each test area corresponding to the highest gray scale;
and calculating the brightness target value of the corresponding binding point gray scale according to the reference brightness of each test area.
Optionally, the adjusting the RGB register values of each test area so that the optical parameter of each test area falls within the error range of the target value of the optical parameter includes:
adjusting the G register value of each test area to enable the color coordinate y value of each test area to fall into the error range of the color coordinate y target value;
adjusting the B register value of each test area to enable the brightness value of each test area to fall into the error range of the brightness target value;
and adjusting the R register value of each test area, so that the color coordinate x value of each test area falls within the error range of the color coordinate x target value.
In this embodiment, the G register value of each test area is adjusted first, so that the color coordinate y value of each test area meets the requirement, then the B register value of each test area is adjusted, so that the brightness of each test area meets the requirement, and finally the R register value of each test area is adjusted, so that the color coordinate x value of each test area meets the requirement, thereby achieving the gamma voltage debugging.
In a specific embodiment, N may be the number of the binding gray scales, so that all the N binding gray scales may be adjusted in parallel, the gamma correction time may be reduced to the greatest extent, and the production efficiency may be improved.
An embodiment of the present invention further provides a gamma voltage correction apparatus, as shown in fig. 2, including:
the dividing module 21 is configured to divide a display screen of the display module into N × N regions, where N is an integer greater than 1;
a selecting module 22, configured to select N test regions from N × N regions, where rows and columns of the N test regions are different from each other;
the calibration module 23 is configured to adjust the gray scale of each test area to a tie point gray scale, where the tie point gray scales corresponding to different test areas are different, input an RGB register initial value to each test area, obtain an optical parameter of each test area, and adjust the RGB register value of each test area so that the optical parameter of each test area falls within an error range of the target value of the optical parameter.
In this embodiment, the display screen of the display module is divided into N × N regions, N test regions are selected from the N × N regions, the gray scale of each test region is adjusted to be a binding point gray scale, and the RGB register value of each test region is adjusted, so that the optical parameter of each test region falls within the error range of the target value of the optical parameter.
Optionally, the optical parameters include brightness and color coordinates, and when the RGB register values of each test area are adjusted, the brightness and the color coordinates of each test area need to be within an error range of the target value, specifically, the target value of the color coordinates may be x ═ 0.313, y ═ 0.329, and the error range may be ± 0.03.
Optionally, the apparatus further comprises:
the image acquisition equipment is used for acquiring a display picture of the display screen;
the correction module is specifically used for acquiring the optical parameters of each test area according to the acquired display picture.
The image acquisition equipment can be a color CCD (charge coupled device), and a display picture of the display screen can be acquired by photographing the display screen by using the color CCD.
Optionally, the optical parameter target value comprises a brightness target value, the apparatus further comprising:
a brightness target value obtaining module, configured to adjust the gray scales of the N test areas to be the highest gray scale, and adjust the gray scales of other areas to be the lowest gray scale; acquiring a display picture of the display screen by using image acquisition equipment, and respectively determining the brightness of each test area according to the acquired display picture as the reference brightness of each test area corresponding to the highest gray scale; and calculating the brightness target value of the corresponding binding point gray scale according to the reference brightness of each test area.
Optionally, the correction module comprises:
the first correction unit is used for adjusting the G register value of each test area, so that the color coordinate y value of each test area falls into the error range of the color coordinate y target value;
the second correction unit is used for adjusting the B register value of each test area, so that the brightness value of each test area falls into the error range of the brightness target value;
and the third correction unit is used for adjusting the R register value of each test area, so that the color coordinate x value of each test area falls into the error range of the color coordinate x target value.
In this embodiment, the G register value of each test area is adjusted first, so that the color coordinate y value of each test area meets the requirement, then the B register value of each test area is adjusted, so that the brightness of each test area meets the requirement, and finally the R register value of each test area is adjusted, so that the color coordinate x value of each test area meets the requirement, thereby achieving the gamma voltage debugging.
In a specific embodiment, N may be the number of the binding gray scales, so that all the N binding gray scales may be adjusted in parallel, the gamma correction time may be reduced to the greatest extent, and the production efficiency may be improved.
The gamma voltage correction scheme of the present invention is further described with reference to the accompanying drawings and the specific embodiments:
the gamma voltage correction scheme of this embodiment is applied to in the system including CCD, computing device and OLED display module assembly, and the computing device specifically can adopt the host computer, and CCD can shoot the display screen of OLED display module assembly, and computing device can handle the result of shooing and obtain required data to show according to data drive display module assembly.
Suppose that the OLED display module of this embodiment has 255 gray scales, and the 9 binding gray scales are in turn: g0, G32, G64, G96, G128, G160, G192, G224 and G255. Because of the IR drop, when the display screen displays the same gray scale picture, the brightness of each place is different, because the OLED module has 9 binding point gray scales, the present embodiment divides the entire display screen into 9 × 9 regions, in order to reduce the influence of the horizontal and vertical display contents on the IR drop to the maximum extent, as shown in fig. 3, 9 regions a to I with different rows and columns are selected as test regions, the gray scales of the test regions a to I are adjusted to G255, and the rest regions are black pictures, that is, the test picture 1 shown in fig. 3. The display screen displaying the test picture 1 is photographed by using a high-speed, high-precision and color CCD, and the computing device can obtain the brightness of the gray scale 255 corresponding to each test area according to the photographing result, as shown in table 1, the last line is the brightness of the gray scale 255 corresponding to each test area.
TABLE 1 Brightness target values for respective binding point grayscales corresponding to respective test regions
The computing device can calculate the luminance target value of each gray level binding point corresponding to each test region according to the gray level-luminance formula, as shown in table 1, for example, the brightness of 255 gray scale corresponding to the test area A is 806.2(nits) obtained by CCD photographing, then the brightness target value of gray scale 32 corresponding to test area A is 8.4, the brightness target value of gray scale 64 corresponding to test area A is 38.5, the brightness target value of gray scale 96 corresponding to test area A is 94.0, the brightness target value of gray scale 128 corresponding to test area A is 177.0, the brightness target value of gray scale 160 corresponding to test area A is 289.1, the brightness target value of gray scale 192 corresponding to test area A is 431.8, the brightness target value of gray scale 224 corresponding to test area A is 606.2, and so on, the brightness target value of each binding point gray scale corresponding to each test area can be obtained, and gamma correction can be carried out according to the brightness target value.
The computing device sends the test frame 2 containing all the binding gray scales shown in fig. 4 to the display module, as shown in fig. 4, each test area corresponds to one binding gray scale, and the binding gray scales corresponding to different test areas are different, for example, the binding gray scale corresponding to the test area H is G255, and the test gray scale corresponding to the test area C is G224. The method comprises the steps of using a CCD to photograph a display screen of a display module, acquiring the brightness and color coordinates of each test area in real time according to a photographing result, and adjusting the RGB register value of each test area so that the brightness of each test area is within the error range of a brightness target value and the color coordinates of each test area are within the error range of a color coordinate target value, wherein specifically, the requirements of Gamma2.2 +/-0.2 and white balance (x is 0.313 +/-0.03, and y is 0.329 +/-0.03) are met.
As shown in fig. 5, for each test area, first, it is determined whether the color coordinate y of the test area is equal to a target value (i.e., 0.326-0.332), if not, it is determined whether the color coordinate y is greater than the target value, if the color coordinate y is greater than the target value, the G register value is adjusted up, i.e., the data voltage (Vdata _ Green) corresponding to the Green sub-pixel of the test area is adjusted up, and if the color coordinate y is less than the target value, the G register value is adjusted down, i.e., the data voltage corresponding to the Green sub-pixel of the test area is adjusted down, until the color coordinate y is equal to the target value; after the color coordinate y is equal to the target value, judging whether the brightness of the test area is equal to the brightness target value or not, if the brightness of the test area is not equal to the brightness target value, judging whether the brightness of the test area is greater than the brightness target value or not, if the brightness of the test area is greater than the brightness target value, adjusting the value of a B register up, namely, adjusting the data voltage (Vdata _ Blue) corresponding to the Blue sub-pixel of the test area up, and if the brightness of the test area is less than the brightness target value, adjusting the value of the B register down, namely, adjusting the data voltage (Vdata _ Blue) corresponding to the Blue sub-pixel of the test area down until the; after the brightness is equal to the brightness target value, whether the color coordinate x of the test area is equal to the target value (namely 0.310-0.316) is judged, if not, whether the color coordinate x is larger than the target value is judged, if the color coordinate x is larger than the target value, the R register value is adjusted upwards, namely the data voltage (Vdata _ Red) corresponding to the Red sub-pixel of the test area is adjusted upwards, and if the color coordinate x is smaller than the target value, the R register value is adjusted downwards, namely the data voltage corresponding to the Red sub-pixel of the test area is adjusted downwards until the color coordinate x is equal to the target value.
The gamma voltage can be corrected through the steps. It is noted that the above-described adjustment process for each test area is performed in parallel.
In the embodiment, the display screen is photographed by adopting the color CCD, all binding point gray scales can be adjusted simultaneously in a parallel mode and adjusted according to the adjusting sequence of G- > B- > R, the quick adjustment of the gamma voltage of the OLED module is realized, and compared with the traditional point-by-point adjusting method, the method greatly shortens the gamma correction time on the premise of ensuring the precision and can improve the production efficiency.
An embodiment of the present invention further provides a gamma voltage correction device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the gamma voltage correction method as described above.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the gamma voltage correction method as described above.
It should be noted that, in the present specification, all the embodiments are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the embodiments, since they are substantially similar to the product embodiments, the description is simple, and the relevant points can be referred to the partial description of the product embodiments.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure 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.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (11)
1. A gamma voltage correction method, comprising:
dividing a display screen of the display module into N regions, wherein N is an integer greater than 1;
selecting N test regions from N regions, wherein the rows and the columns of the N test regions are different;
adjusting the gray scale of each test area into a binding point gray scale, wherein the binding point gray scales corresponding to different test areas are different, inputting an RGB register initial value into each test area, acquiring the optical parameters of each test area, and adjusting the RGB register value of each test area to ensure that the optical parameters of each test area fall within the error range of the target value of the optical parameters;
the optical parameter target value comprises a brightness target value, the method further comprises the step of obtaining the brightness target value of each test area, and the step of obtaining the brightness target value of each test area comprises the following steps:
adjusting the gray scales of the N test areas to be the highest gray scale, and adjusting the gray scales of other areas to be the lowest gray scale;
acquiring a display picture of the display screen by using image acquisition equipment, and respectively determining the brightness of each test area according to the acquired display picture as the reference brightness of each test area corresponding to the highest gray scale;
and calculating the brightness target value of the corresponding binding point gray scale according to the reference brightness of each test area.
2. The gamma voltage correction method of claim 1, wherein the optical parameters further include color coordinates.
3. The gamma voltage correction method of claim 2, wherein the obtaining the optical parameters of each test area comprises:
and acquiring a display picture of the display screen by using image acquisition equipment, and acquiring the optical parameters of each test area according to the acquired display picture.
4. The method of claim 2, wherein the adjusting the RGB register values for each test area such that the optical parameters for each test area fall within the error range of the target values of the optical parameters comprises:
adjusting the G register value of each test area to enable the color coordinate y value of each test area to fall into the error range of the color coordinate y target value;
adjusting the B register value of each test area to enable the brightness value of each test area to fall into the error range of the brightness target value;
and adjusting the R register value of each test area, so that the color coordinate x value of each test area falls within the error range of the color coordinate x target value.
5. The gamma voltage correction method of claim 1, wherein N is the number of binding gray levels.
6. A gamma voltage correction apparatus, comprising:
the display module comprises a dividing module, a display module and a display module, wherein the dividing module is used for dividing a display screen of the display module into N regions, and N is an integer greater than 1;
the device comprises a selection module, a detection module and a control module, wherein the selection module is used for selecting N test regions from N regions, and the rows and the columns of the N test regions are different;
the correction module is used for adjusting the gray scale of each test area into a binding point gray scale, the binding point gray scales corresponding to different test areas are different, an RGB register initial value is input into each test area, the optical parameters of each test area are obtained, and the RGB register value of each test area is adjusted, so that the optical parameters of each test area fall within the error range of the target value of the optical parameters;
the optical parameter target values comprise luminance target values, the apparatus further comprising:
a brightness target value obtaining module, configured to adjust the gray scales of the N test areas to be the highest gray scale, and adjust the gray scales of other areas to be the lowest gray scale; acquiring a display picture of the display screen by using image acquisition equipment, and respectively determining the brightness of each test area according to the acquired display picture as the reference brightness of each test area corresponding to the highest gray scale; and calculating the brightness target value of the corresponding binding point gray scale according to the reference brightness of each test area.
7. The gamma voltage correction device of claim 6, wherein the optical parameters further include color coordinates.
8. The gamma voltage correction device of claim 7, further comprising:
the image acquisition equipment is used for acquiring a display picture of the display screen;
the correction module is specifically used for acquiring the optical parameters of each test area according to the acquired display picture.
9. The gamma voltage correction device of claim 7, wherein the correction module comprises:
the first correction unit is used for adjusting the G register value of each test area, so that the color coordinate y value of each test area falls into the error range of the color coordinate y target value;
the second correction unit is used for adjusting the B register value of each test area, so that the brightness value of each test area falls into the error range of the brightness target value;
and the third correction unit is used for adjusting the R register value of each test area, so that the color coordinate x value of each test area falls into the error range of the color coordinate x target value.
10. A gamma voltage correction apparatus, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the gamma voltage correction method of any one of claims 1 to 4.
11. A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, implements the steps in the gamma voltage correction method of any one of claims 1 to 4.
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| CN111968583A (en) * | 2020-07-23 | 2020-11-20 | 昆山国显光电有限公司 | Display panel brightness compensation control method and brightness compensation control system |
| CN112017577B (en) * | 2020-08-31 | 2023-10-24 | 维沃移动通信有限公司 | Screen display calibration method and device |
| CN113327563B (en) * | 2021-05-31 | 2022-07-12 | Tcl华星光电技术有限公司 | Control method of display panel, display device and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992683A (en) * | 2015-07-02 | 2015-10-21 | 武汉华星光电技术有限公司 | Gamma adjustment method and device of liquid crystal display panel |
| CN106328070A (en) * | 2016-09-28 | 2017-01-11 | 武汉精测电子技术股份有限公司 | OLED module Gamma adjustment and calibration method and device |
| CN106384573A (en) * | 2016-11-04 | 2017-02-08 | 武汉精测电子技术股份有限公司 | OLED module Gamma adjustment and calibration method based on linear interpolation calculation |
| WO2017210948A1 (en) * | 2016-06-07 | 2017-12-14 | 武汉华星光电技术有限公司 | Drive method of liquid crystal display and liquid crystal display |
| CN109029918A (en) * | 2018-06-06 | 2018-12-18 | 武汉精测电子集团股份有限公司 | A kind of gamma adjusts the method and device tied up a little |
| CN109036233A (en) * | 2018-09-07 | 2018-12-18 | 四川长虹电器股份有限公司 | The automatic gamma curve adjustment method of production line multiple spot and system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6111755B2 (en) * | 2013-03-13 | 2017-04-12 | セイコーエプソン株式会社 | Display control circuit, electro-optical device, and electronic apparatus |
| CN103400400B (en) * | 2013-08-07 | 2017-03-01 | 南京巨鲨显示科技有限公司 | A kind of method for correcting image based on region |
| KR102307501B1 (en) * | 2015-04-30 | 2021-10-01 | 삼성디스플레이 주식회사 | Optical compensation system and Optical compensation method thereof |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992683A (en) * | 2015-07-02 | 2015-10-21 | 武汉华星光电技术有限公司 | Gamma adjustment method and device of liquid crystal display panel |
| WO2017210948A1 (en) * | 2016-06-07 | 2017-12-14 | 武汉华星光电技术有限公司 | Drive method of liquid crystal display and liquid crystal display |
| CN106328070A (en) * | 2016-09-28 | 2017-01-11 | 武汉精测电子技术股份有限公司 | OLED module Gamma adjustment and calibration method and device |
| CN106384573A (en) * | 2016-11-04 | 2017-02-08 | 武汉精测电子技术股份有限公司 | OLED module Gamma adjustment and calibration method based on linear interpolation calculation |
| CN109029918A (en) * | 2018-06-06 | 2018-12-18 | 武汉精测电子集团股份有限公司 | A kind of gamma adjusts the method and device tied up a little |
| CN109036233A (en) * | 2018-09-07 | 2018-12-18 | 四川长虹电器股份有限公司 | The automatic gamma curve adjustment method of production line multiple spot and system |
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