CN117912409A - Display screen brightness compensation method and device, storage medium and display device - Google Patents

Display screen brightness compensation method and device, storage medium and display device Download PDF

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Publication number
CN117912409A
CN117912409A CN202410140978.1A CN202410140978A CN117912409A CN 117912409 A CN117912409 A CN 117912409A CN 202410140978 A CN202410140978 A CN 202410140978A CN 117912409 A CN117912409 A CN 117912409A
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China
Prior art keywords
brightness
data
display screen
compensation
luminance
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CN202410140978.1A
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Chinese (zh)
Inventor
李轩
曹志
刘可
陈�峰
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Vicino Technology Co ltd
Hefei Visionox Technology Co Ltd
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Vicino Technology Co ltd
Hefei Visionox Technology Co Ltd
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Priority to CN202410140978.1A priority Critical patent/CN117912409A/en
Publication of CN117912409A publication Critical patent/CN117912409A/en
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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
    • 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]
    • G09G3/3216—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 a passive matrix
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The application provides a brightness compensation method and device for a display screen, a storage medium and a display device. The method comprises the following steps: acquiring initial brightness data of a reference image displayed on a display screen under a target gray level, wherein the initial brightness data is acquired by brightness acquisition equipment; determining a normal display area and each brightness adjustment area of the display screen based on initial brightness data of the reference image, and calculating brightness difference data of each brightness adjustment area relative to the normal display area; according to the initial brightness data of the reference image and the brightness difference data of each brightness adjustment area, performing a first compensation operation on the initial brightness data of each pixel point of the reference image, removing the brightness data with difference due to anode initialization from the initial brightness data, and performing secondary compensation on each brightness adjustment area based on the brightness difference data of each brightness adjustment area and the standard brightness data of each pixel point, thereby further eliminating the brightness non-uniformity problem of the brightness adjustment area, being beneficial to eliminating dark bands and solving the three-split screen problem.

Description

Display screen brightness compensation method and device, storage medium and display device
Technical Field
The present application relates to the field of display technologies, and in particular, to a method and apparatus for compensating brightness of a display screen, a storage medium, and a display apparatus.
Background
Along with the continuous development of display technology, the application range of the display panel is wider and wider, and the requirements of people on the display panel are also higher and higher. Particularly, the display image quality of the display panel is always one of important indicators for quality measurement of the display panel by consumers and panel manufacturers.
However, the conventional display panel has a problem of poor display uniformity, which affects the improvement of display quality of the display panel.
Disclosure of Invention
In view of the above, the present application provides a method and apparatus for compensating brightness of a display screen, a storage medium and a display device, so as to solve the problem of uneven display brightness of the display screen in the prior art.
The first aspect of the present application provides a brightness compensation method for a display screen, the method comprising: acquiring initial brightness data of a reference image displayed on a display screen under a target gray level, wherein the initial brightness data is acquired by brightness acquisition equipment; determining a normal display area and each brightness adjustment area of the display screen based on initial brightness data of the reference image, and calculating brightness difference data of each brightness adjustment area relative to the normal display area, wherein the brightness of the brightness adjustment area is lower than that of the normal display area; performing a first compensation operation on the initial brightness data of each pixel point of the reference image based on the initial brightness data of the reference image and the brightness difference data of each brightness adjustment region to obtain standard brightness data of each pixel point in the reference image; and performing second compensation operation on the standard brightness data of each brightness adjustment region based on the brightness difference data of each brightness adjustment region and the standard brightness data of each pixel point to obtain target brightness data corresponding to each pixel point in the brightness adjustment region so as to complete brightness compensation of the display screen.
In a specific embodiment of the first aspect of the present application, before performing the first compensation operation on the initial luminance data of each pixel point of the reference image based on the initial luminance data of the reference image and the luminance difference data of each luminance adjustment region, the method further includes: acquiring anode initialization time corresponding to a display screen; based on the initial brightness data of the reference image and the brightness difference data of each brightness adjustment region, performing a first compensation operation on the initial brightness data of each pixel point of the reference image to obtain standard brightness data of each pixel point in the reference image, wherein the obtaining step comprises the following steps: correcting the brightness difference data of each brightness adjustment region into relative brightness data based on the anode initialization time of the display screen, wherein the relative brightness data is used for representing brightness change of each brightness adjustment region relative to the center of the display screen; based on the initial brightness data of the reference image and the relative brightness data of each brightness adjustment area, calculating to obtain brightness compensation data corresponding to the display screen by utilizing demura algorithm, and performing first compensation operation on the initial brightness data of each pixel point by utilizing the brightness compensation data to obtain standard brightness data of each pixel point.
In a specific embodiment of the first aspect of the present application, based on initial luminance data of a reference image and relative luminance data of each luminance adjustment area, luminance compensation data corresponding to a display screen is calculated by using demura algorithm, and first compensation operation is performed on the initial luminance data of each pixel point by using the luminance compensation data, so as to obtain standard luminance data of each pixel point, including: correcting the relative brightness data of each brightness adjustment area to the brightness data of the normal display area; based on the initial brightness data of the reference image and the brightness data of the normal display area, calculating to obtain brightness compensation data corresponding to the display screen by utilizing demura algorithm, and performing first compensation operation on the initial brightness data of each pixel point by utilizing the brightness compensation data to obtain standard brightness data of each pixel point.
In a specific embodiment of the first aspect of the present application, correcting the luminance difference data of each luminance adjustment region to relative luminance data based on the anode initialization time of the display screen includes: setting initialization compensation values corresponding to all brightness adjustment areas based on anode initialization time of a display screen; and correcting the brightness difference data of each brightness adjustment region into relative brightness data by using the initialization compensation value corresponding to each brightness adjustment region.
In a specific embodiment of the first aspect of the present application, based on the luminance difference data of each luminance adjustment region and the standard luminance data of each pixel point, performing a second compensation operation on the standard luminance data of each luminance adjustment region to obtain target luminance data corresponding to each pixel point in the luminance adjustment region, so as to complete luminance compensation of the display screen, including: determining standard brightness data of a brightness adjustment area from standard brightness data of each pixel point; based on a preset weight value, carrying out weighting processing operation on the brightness difference data of each brightness adjustment region to obtain brightness compensation data of each brightness adjustment region; and performing second compensation operation on the standard brightness data of the brightness adjustment region based on the brightness compensation data of each brightness adjustment region to obtain target brightness data corresponding to each pixel point in the brightness adjustment region.
In a specific embodiment of the first aspect of the present application, determining a normal display area and each brightness adjustment area of the display screen based on initial brightness data of the reference image, and calculating brightness difference data of each brightness adjustment area with respect to the normal display area, includes: determining average brightness data of a normal display area and each brightness adjustment area of the display screen based on initial brightness data of the reference image; and determining brightness difference data of each brightness adjustment region of the display screen based on the average brightness data of each normal display region and each brightness adjustment region of the display screen and the initial brightness data of each brightness adjustment region.
In a specific embodiment of the first aspect of the present application, determining luminance difference data of each luminance adjustment region of the display screen based on average luminance data of each of a normal display region and each luminance adjustment region of the display screen and initial luminance data of each luminance adjustment region, includes: setting preset brightness data of each pixel point of the display screen based on average brightness data of a normal display area and each brightness adjustment area of the display screen; and carrying out difference operation on preset brightness data of each pixel point of the display screen and initial brightness data of each brightness adjustment region, and determining brightness difference data of each brightness adjustment region.
The second aspect of the present application provides a brightness compensation device for a display screen, the device comprising an acquisition module for acquiring initial brightness data of a reference image displayed by the display screen under a target gray scale by using a brightness acquisition device; the determining module is used for determining a normal display area and each brightness adjustment area of the display screen based on the initial brightness data of the reference image, and calculating brightness difference data of each brightness adjustment area relative to the normal display area, wherein the brightness of the brightness adjustment area is lower than that of the normal display area; the first compensation module is used for carrying out a first compensation operation on the initial brightness data of each pixel point of the reference image based on the initial brightness data of the reference image and the brightness difference data of each brightness adjustment area to obtain standard brightness data of each pixel point in the reference image; and the second compensation module is used for carrying out second compensation operation on the standard brightness data of each brightness adjustment region based on the brightness difference data of each brightness adjustment region and the standard brightness data of each pixel point to obtain target brightness data corresponding to each pixel point in the brightness adjustment region so as to complete brightness compensation of the display screen.
In a third aspect, an embodiment of the present application provides a computer-readable storage medium storing computer instructions that are executable by a processor and that when executed by the processor implement the brightness compensation method of the first aspect.
In a fourth aspect, an embodiment of the present application provides a display device including the luminance compensation device mentioned in the second aspect and a display screen, wherein the luminance compensation device compensates for the luminance of the display screen when the display screen performs a display operation.
According to the brightness compensation method and device, the storage medium and the display device of the display screen, the initial brightness data of each pixel point of the reference image are subjected to first compensation operation according to the initial brightness data of the reference image and the brightness difference data of each brightness adjustment area, the brightness data with difference due to anode initialization is removed from the initial brightness data, secondary compensation is carried out on each brightness adjustment area based on the brightness difference data of each brightness adjustment area and the standard brightness data of each pixel point, the brightness non-uniformity problem of the brightness adjustment area is further eliminated, dark bands are eliminated, and the three-split-screen problem is solved.
Drawings
Fig. 1a is a flowchart of a brightness compensation method of a display screen according to an embodiment of the application.
Fig. 1b is a schematic structural diagram of a display screen according to an embodiment of the application.
Fig. 2 is a flowchart of a brightness compensation method for a display screen according to another embodiment of the application.
Fig. 3 is a schematic diagram of state transition of a display screen according to an embodiment of the application.
Fig. 4 is a flowchart of a brightness compensation method of a display screen according to another embodiment of the application.
Fig. 5 is a flowchart of a brightness compensation method for a display screen according to another embodiment of the application.
Fig. 6 is a flowchart of a brightness compensation method for a display screen according to another embodiment of the application.
Fig. 7 is a flowchart of a brightness compensation method for a display screen according to another embodiment of the application.
Fig. 8 is a flowchart of a brightness compensation method for a display screen according to another embodiment of the application.
Fig. 9 is a schematic structural diagram of a brightness compensation device according to an embodiment of the application.
Fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
An Organic Light-Emitting Diode (OLED) display device has many advantages of self-luminescence, high contrast, etc., and is a display device with wide application prospects.
Conventional OLED products use Low Temperature Polysilicon (LTPS) technology, LTPS being limited by the large leakage current of thin film transistor (Thin Film Transistor, TFT) devices, flicker is easily observed in low frequency applications. The low-temperature polycrystalline oxide (Low Temperature Polycrystalline Oxide, LTPO) technology has been developed, and LTPO combines the high mobility of low-temperature polycrystalline silicon and the low leakage characteristics of oxide, so that high-frequency application can be realized, low-frequency application can be realized well, and the market favor is obtained.
Currently popular LTPO products mostly employ 7T1C pixel circuits. However, when the 7T1C pixel circuit is applied at low frequency, the brightness difference between the hold frame and the write frame is more likely to occur, so that the problem of low frequency flicker occurs.
In order to improve the natural defect of the 7T1C pixel circuit, an 8T1C pixel circuit has been developed to improve the low frequency flicker phenomenon by adding a transistor T8 to reset the source or drain of the DTFT at a high frequency.
However, in the practical application process, the inventor found that the 8T1C pixel circuit has the following problem, the 8T1C pixel circuit simultaneously controls the initialization of the DTFT source and the OLED anode due to the transistor T8, and the control signal SP2 of the pixel circuit is a high frequency signal. When the control signal SP2 sends out a scan pulse in the same period, two dark bands appear in the middle of the screen, the screen is divided into three areas, namely an upper area, a middle area and a lower area, and three sub-screens appear.
In view of the above, the present application provides a method and apparatus for compensating brightness of a display screen, a storage medium and a display device, so as to solve the problem of uneven brightness of the existing display screen.
Fig. 1a is a flowchart of a brightness compensation method of a display screen according to an embodiment of the application. As shown in fig. 1a, the brightness compensation method includes the following steps.
Step 100, obtaining initial brightness data of a reference image displayed on a display screen under a target gray level, wherein the initial brightness data is acquired by brightness acquisition equipment.
The brightness acquisition device may be a high definition camera by which initial brightness data of the reference image is acquired, for example.
Illustratively, the full gray scale of the display screen is 0 to 255. The target gray scale can be 5, 20, 35, 50, 65 … …, 230 and 245, and the initial brightness data of each pixel point of the display screen under the target gray scale can be detected through a brightness acquisition device such as a charge coupled device (charge coupled device, CCD).
The initial luminance data may be, for example, relative luminance data (csv format). The relative brightness data is used to characterize the brightness variation of each pixel point relative to the center of the display screen. The initial luminance data may be stored in the form of a csv file.
Step 101, determining a normal display area and each brightness adjustment area of the display screen based on the initial brightness data of the reference image, and calculating brightness difference data of each brightness adjustment area relative to the normal display area.
Wherein the brightness of the brightness adjustment region is lower than the brightness of the normal display region.
The luminance difference data may be luminance reduction data, that is, luminance values at which pixels of the luminance adjustment region are reduced relative to pixels of the normal display region, for example.
Specifically, as shown in fig. 1b, it may be determined that the display screen 1 includes a first normal display region 11, a first luminance adjustment region 12, a second normal display region 13, a second luminance adjustment region 14, and a third normal display region 15, based on the initial luminance data of the reference image. The first luminance adjustment region 12 and the second luminance adjustment region 14 each have a luminance lower than the luminance of the first normal display region 11, the second normal display region 13, and the third normal display region 15. Since the brightness of the first brightness adjustment region 12 and the second brightness adjustment region 14 is lower than the normal display value, two dark bands appear in the middle of the screen of the display screen, the screen is divided into three regions, namely, upper, middle and lower, and the three-split problem occurs.
The brightness adjustment area in the brightness compensation method of the display screen provided by the embodiment of the application can be a transverse fixed area, a longitudinal fixed area or an oblique fixed area in the display screen, and the application is not particularly limited thereto, and the area needing to compensate brightness difference can be defined as the brightness adjustment area.
Step 102, performing a first compensation operation on the initial brightness data of each pixel point of the reference image based on the initial brightness data of the reference image and the brightness difference data of each brightness adjustment region, so as to obtain standard brightness data of each pixel point in the reference image.
The standard luminance data is, for example, a luminance value obtained by first compensating the original luminance of each pixel.
Illustratively, the first compensation operation is brightness compensation for all pixel points in the reference image, and the first compensation operation may be demura compensation.
Specifically, the initial brightness data of each pixel point is subjected to demura compensation according to the initial brightness data obtained by photographing and the brightness difference data determined according to the brightness adjustment region, and standard brightness data corresponding to each pixel point is obtained through calculation.
And 103, performing a second compensation operation on the standard brightness data of each brightness adjustment region based on the brightness difference data of each brightness adjustment region and the standard brightness data of each pixel point to obtain target brightness data corresponding to each pixel point in the brightness adjustment region so as to complete brightness compensation of the display screen.
The target luminance data is illustratively obtained by subjecting the luminance reduced by the luminance adjustment region to an additional second compensation operation.
The second compensation operation is, for example, brightness compensation for the pixel points in each brightness adjustment region.
The brightness compensation method of the display screen provided by the embodiment of the application can be applied to the electronic equipment with the display screen, and can respectively carry out targeted brightness compensation on each luminous pixel area in the display screen. The electronic device includes: a mobile phone, a computer, a tablet computer, etc., and the display screen of the electronic device is composed of an organic light-emitting diode (OLED) display panel, and the OLED includes a passive organic light-emitting diode (PMOLED) and an active organic light-emitting diode (active matrixrganic light-emitting diode, AMOLED). The specific form of the display screen is not limited in this embodiment.
According to the brightness compensation method for the display screen, provided by the embodiment of the application, the initial brightness data of each pixel point of the reference image is subjected to the first compensation operation according to the initial brightness data of the reference image and the brightness difference data of each brightness adjustment area, the brightness data which is insufficient for anode initialization is removed from the initial brightness data, the brightness adjustment areas are subjected to the second compensation based on the brightness difference data of each brightness adjustment area and the standard brightness data of each pixel point, the problem of uneven brightness of the brightness adjustment areas is further eliminated, the dark bands are eliminated, and the problem of three-split-screen is solved.
Fig. 2 is a flowchart of a brightness compensation method for a display screen according to another embodiment of the application. Specifically, the embodiment shown in fig. 2 is extended from the embodiment shown in fig. 1a, and differences between the embodiment shown in fig. 2 and the embodiment shown in fig. 1a are mainly described below, and the details of the differences are not repeated.
As shown in fig. 2, before performing the first compensation operation on the initial luminance data of each pixel point of the reference image based on the initial luminance data of the reference image and the luminance difference data of each luminance adjustment region to obtain the standard luminance data of each pixel point in the reference image (step 102), the following steps are further included.
Step 200, obtaining anode initialization time corresponding to the display screen.
Specifically, anode initialization time corresponding to a screen model of a display screen is obtained. It should be understood that the anode initialization time corresponding to the screen of different model is different, and the different anode initialization time may have an effect on the brightness of the screen, and thus, it is necessary to obtain the anode initialization time of the display screen in advance according to the model of the screen.
The method comprises the steps of performing a first compensation operation on initial brightness data of each pixel point of a reference image based on the initial brightness data of the reference image and brightness difference data of each brightness adjustment region to obtain standard brightness data of each pixel point in the reference image (step 102), and further comprises the following steps.
Step 201, correcting the brightness difference data of each brightness adjustment area into relative brightness data based on the anode initialization time of the display screen.
The relative brightness data is used to characterize, for example, the brightness change of the individual brightness adjustment regions relative to the center of the display screen.
It should be understood that, according to the anode initialization time of the display screen, the brightness difference data is converted into the relative brightness data, which is equivalent to deepening the brightness of the brightness adjustment area, so that the compensation effect of the brightness adjustment area is better, and the problem of three split screens can be thoroughly solved.
Step 202, calculating to obtain brightness compensation data corresponding to the display screen by utilizing demura algorithm based on the initial brightness data of the reference image and the relative brightness data of each brightness adjustment area, and performing a first compensation operation on the initial brightness data of each pixel point by utilizing the brightness compensation data to obtain standard brightness data of each pixel point.
It should be understood that the flow of demura algorithm is the Mura condition of taking a gray-scale picture by a camera, and the Mura is extracted and corrected by some algorithms according to the brightness of the central area of the display screen. For the pixel points with higher display brightness, the original gray scale is reduced by a certain compensation value, and for the pixel points with lower display brightness, the original gray scale is increased by a certain compensation value, so that the brightness of each pixel after gray scale compensation is nearly consistent, and the improvement of Mura phenomenon is realized.
In the actual application process, as shown in fig. 3, the initial brightness data 1 of the reference image may be used as original data, and the brightness difference data of each brightness adjustment region 10 in the initial brightness data 1 may be corrected to be relative brightness data, so as to obtain modified initial brightness data 2. It can be seen that in the modified initial luminance data 2, the luminance of the corresponding luminance adjustment region 10 is deepened with respect to the initial luminance data 1. And calculating to obtain brightness compensation data corresponding to the display screen by using the modified initial brightness data 2 and adopting demura algorithm, and adding a certain gray level compensation value to the pixel points in the dark area by using the brightness compensation data so as to improve the brightness value. And reducing a certain gray level compensation value for the pixel points in the bright area to reduce the brightness value, so as to obtain standard brightness data 3 of each pixel point after demura compensation.
The brightness compensation data for all pixels can be made into a demura table for processing by hardware (e.g., a processor).
According to the brightness compensation method for the display screen, provided by the embodiment of the application, based on the initial brightness data of the reference image and the relative brightness data of each brightness adjustment area, the brightness compensation data corresponding to the display screen is calculated by utilizing demura algorithm, and the initial brightness data of each pixel point is subjected to first compensation operation by utilizing the brightness compensation data to obtain the standard brightness data of each pixel point, so that the brightness compensation accuracy and the overall brightness uniformity of the display screen can be improved, and the display image quality of a display screen product can be effectively improved.
Fig. 4 is a flowchart of a brightness compensation method of a display screen according to another embodiment of the application. Specifically, the embodiment shown in fig. 4 is extended from the embodiment shown in fig. 2, and differences between the embodiment shown in fig. 4 and the embodiment shown in fig. 2 are mainly described below, and the details of the differences are not repeated.
As shown in fig. 4, based on the initial brightness data of the reference image and the relative brightness data of each brightness adjustment region, brightness compensation data corresponding to the display screen is calculated by using demura algorithm, and the initial brightness data of each pixel point is subjected to a first compensation operation by using the brightness compensation data to obtain standard brightness data of each pixel point (step 202), which comprises the following steps.
Step 400, correcting the relative brightness data of each brightness adjustment region to the brightness data of the normal display region.
It should be understood that the initial luminance data may be processed to correct the luminance difference data of each luminance adjustment region in the initial luminance data into relative luminance data, and further correct the relative luminance data into normal display region luminance, where the modified initial luminance data is obtained to have the luminance difference removed, and is csv data containing only general mura.
Step 401, calculating to obtain brightness compensation data corresponding to the display screen by utilizing demura algorithm based on the initial brightness data of the reference image and the brightness data of the normal display area, and performing a first compensation operation on the initial brightness data of each pixel point by utilizing the brightness compensation data to obtain standard brightness data of each pixel point.
Specifically, based on the initial luminance data of the reference image and the luminance data of the normal display area, the processed initial luminance data is obtained, and since the luminance difference has been removed from the processed initial luminance data, demura compensation is performed using the processed initial luminance data, resulting in compensated standard luminance data.
According to the brightness compensation method for the display screen, provided by the embodiment of the application, the first compensation operation is performed on the initial brightness data of each pixel point by utilizing the demura algorithm based on the initial brightness data of the reference image and the brightness data of the normal display area, so that the brightness uniformity of each display area of the display screen is improved, and the display image quality is further improved.
Fig. 5 is a flowchart of a brightness compensation method for a display screen according to another embodiment of the application. Specifically, the embodiment shown in fig. 5 is extended from the embodiment shown in fig. 2, and differences between the embodiment shown in fig. 5 and the embodiment shown in fig. 2 are mainly described below, and the details of the differences are not repeated.
As shown in fig. 5, the luminance difference data of each luminance adjustment region is corrected to relative luminance data based on the anode initialization time of the display screen (step 201), including the following steps.
Step 500, setting initialization compensation values corresponding to the brightness adjustment areas based on the anode initialization time of the display screen.
In step 501, the luminance difference data of each luminance adjustment region is corrected to be relative luminance data by using the initialization compensation value corresponding to each luminance adjustment region.
Specifically, the screen anode initialization times are different for different models, and the different anode initialization times may have an effect on screen brightness. Therefore, it is necessary to set a corresponding initialization compensation value in advance according to the anode initialization time of the display screen. The function of the initialization compensation value is to directly perform preliminary brightness adjustment on the brightness adjustment region, and correct the brightness difference data into relative brightness data, which is equivalent to deepening the brightness of the three-split screen region.
According to the brightness compensation method for the display screen, provided by the embodiment of the application, the initialization compensation value corresponding to each brightness adjustment region is set based on the anode initialization time of the display screen, and then the brightness difference data of each brightness adjustment region is corrected into the relative brightness data by utilizing the initialization compensation value corresponding to each brightness adjustment region, so that the preliminary brightness adjustment of the brightness adjustment region is realized, and the subsequent improvement of the compensation effect of the brightness adjustment region is facilitated.
Fig. 6 is a flowchart of a brightness compensation method for a display screen according to another embodiment of the application. Specifically, the embodiment shown in fig. 6 is extended from the embodiment shown in fig. 1a, and differences between the embodiment shown in fig. 6 and the embodiment shown in fig. 1a are mainly described below, and the details of the differences are not repeated.
As shown in fig. 6, based on the brightness difference data of each brightness adjustment region and the standard brightness data of each pixel point, performing a second compensation operation on the standard brightness data of each brightness adjustment region to obtain target brightness data corresponding to each pixel point in the brightness adjustment region, so as to complete brightness compensation of the display screen (step 103), which includes the following steps.
Step 600, determining standard brightness data of the brightness adjustment area from the standard brightness data of each pixel point.
Step 601, performing a weighting process on the brightness difference data of each brightness adjustment region based on a preset weight value, to obtain brightness compensation data of each brightness adjustment region.
Specifically, the luminance difference data may be weighted, and the weight value of each pixel point may be set according to the actual. The weight values of the pixels may be the same or different, which is not particularly limited in the present application.
Step 602, performing a second compensation operation on the standard luminance data of the luminance adjustment region based on the luminance compensation data of each luminance adjustment region, to obtain target luminance data corresponding to each pixel point in the luminance adjustment region.
According to the brightness compensation method for the display screen, provided by the embodiment of the application, the brightness compensation data of each brightness adjustment area is obtained by utilizing the brightness difference data of each brightness adjustment area, so that the compensation result of the three-split screen position is dynamically adjusted, the part with reduced brightness of the three-split screen is additionally compensated, and the three-split screen problem is solved.
Fig. 7 is a flowchart of a brightness compensation method for a display screen according to another embodiment of the application. Specifically, the embodiment shown in fig. 7 is extended from the embodiment shown in fig. 1a, and differences between the embodiment shown in fig. 7 and the embodiment shown in fig. 1a are mainly described below, and the details of the differences are not repeated.
As shown in fig. 7, based on the initial luminance data of the reference image, a normal display area and each luminance adjustment area of the display screen are determined, and luminance difference data of each luminance adjustment area with respect to the normal display area is calculated (step 101), including the following steps.
Step 700, determining average brightness data of a normal display area of the display screen and each brightness adjustment area based on initial brightness data of the reference image.
Step 701, determining brightness difference data of each brightness adjustment region of the display screen based on average brightness data of each normal display region and each brightness adjustment region of the display screen and initial brightness data of each brightness adjustment region.
Specifically, initial brightness data of the reference image, namely CSV data (a table formed by brightness of each pixel point) is obtained by photographing, brightness values of each pixel point are traversed from the screen body from top to bottom, if two adjacent pixel points with larger brightness difference are traversed, positions of the two adjacent pixel points are located at edges of a normal area and a dark band area, and after 4 edges are traversed, a brightness adjustment area (a three-split screen area) with lower brightness can be determined. And calculating average brightness data of each area, and determining the reduced brightness of each pixel point of the three-split-screen area according to the average brightness data.
According to the brightness compensation method for the display screen, provided by the embodiment of the application, the brightness difference data of each brightness adjustment area of the display screen is determined based on the average brightness data of the normal display area and each brightness adjustment area of the display screen and the initial brightness data of each brightness adjustment area, so that the brightness difference data of the brightness adjustment areas can be conveniently utilized later, the gray scales are compensated to different degrees through demura algorithm, and the part with reduced brightness of the three-split screen is additionally compensated on the basis of the common demura algorithm, so that the problem of three-split screen is solved.
Fig. 8 is a flowchart of a brightness compensation method for a display screen according to another embodiment of the application. Specifically, the embodiment shown in fig. 8 is extended from the embodiment shown in fig. 7, and differences between the embodiment shown in fig. 8 and the embodiment shown in fig. 7 are mainly described below, and the details of the differences are not repeated.
As shown in fig. 8, the luminance difference data of each luminance adjustment region of the display screen is determined based on the average luminance data of each of the normal display region and each luminance adjustment region of the display screen and the initial luminance data of each luminance adjustment region (step 701), including the following steps.
Step 800, setting preset brightness data of each pixel point of the display screen based on average brightness data of a normal display area and each brightness adjustment area of the display screen.
Step 801, performing a difference operation on preset brightness data of each pixel point of the display screen and initial brightness data of each brightness adjustment region, and determining brightness difference data of each brightness adjustment region.
Specifically, after obtaining respective average brightness data of the normal display area and each brightness adjustment area, preset brightness data corresponding to each pixel point in the screen is set stepwise according to the average brightness data, and brightness difference data, namely reduced brightness of each point in the three-split screen area, is obtained according to a difference value between the preset brightness data and actual brightness. The preset brightness data may be specifically set according to actual situations.
According to the brightness compensation method for the display screen, provided by the embodiment of the application, based on the average brightness data of the normal display area and each brightness adjustment area of the display screen, the preset brightness data of each pixel point of the display screen is set, then the difference value operation is carried out on the preset brightness data of each pixel point of the display screen and the initial brightness data of each brightness adjustment area, the brightness difference data of each brightness adjustment area is determined, the brightness difference data of the brightness adjustment areas are convenient to be utilized subsequently, the gray scales are compensated to different degrees through demura algorithm, and the part with reduced brightness of the three-split screen is additionally compensated on the basis of the normal demura algorithm, so that the three-split screen problem is solved.
Fig. 9 is a schematic structural diagram of a brightness compensation device according to an embodiment of the application. As shown in fig. 9, the brightness compensation device 8 is configured to compensate the brightness of the display screen, where the brightness compensation device 8 includes an acquisition module 800, a determination module 801, a first compensation module 802, and a second compensation module 803. The acquisition module 800 is configured to acquire initial brightness data of a reference image displayed on a display screen at a target gray scale by using a brightness acquisition device. The determining module 801 is configured to determine a normal display area and each brightness adjustment area of the display screen based on initial brightness data of the reference image, and calculate brightness difference data of each brightness adjustment area relative to the normal display area, where brightness of the brightness adjustment area is lower than brightness of the normal display area. The first compensation module 802 is configured to perform a first compensation operation on the initial luminance data of each pixel point of the reference image based on the initial luminance data of the reference image and the luminance difference data of each luminance adjustment area, so as to obtain standard luminance data of each pixel point in the reference image. The second compensation module 803 is configured to perform a second compensation operation on the standard luminance data of each luminance adjustment area based on the luminance difference data of each luminance adjustment area and the standard luminance data of each pixel, so as to obtain target luminance data corresponding to each pixel in the luminance adjustment area, so as to complete luminance compensation of the display screen.
In some embodiments, the first compensation module is further configured to obtain an anode initialization time corresponding to the display screen; correcting the brightness difference data of each brightness adjustment region into relative brightness data based on the anode initialization time of the display screen, wherein the relative brightness data is used for representing brightness change of each brightness adjustment region relative to the center of the display screen; based on the initial brightness data of the reference image and the relative brightness data of each brightness adjustment area, calculating to obtain brightness compensation data corresponding to the display screen by utilizing demura algorithm, and performing first compensation operation on the initial brightness data of each pixel point by utilizing the brightness compensation data to obtain standard brightness data of each pixel point.
In some embodiments, the first compensation module is further configured to correct the relative luminance data of each luminance adjustment region to the luminance data of the normal display region; based on the initial brightness data of the reference image and the brightness data of the normal display area, calculating to obtain brightness compensation data corresponding to the display screen by utilizing demura algorithm, and performing first compensation operation on the initial brightness data of each pixel point by utilizing the brightness compensation data to obtain standard brightness data of each pixel point.
In some embodiments, the first compensation module is further configured to set an initialization compensation value corresponding to each brightness adjustment region based on an anode initialization time of the display screen; and correcting the brightness difference data of each brightness adjustment region into relative brightness data by using the initialization compensation value corresponding to each brightness adjustment region.
In some embodiments, the second compensation module is further configured to determine standard luminance data of the luminance adjustment area from standard luminance data of each pixel point; based on a preset weight value, carrying out weighting processing operation on the brightness difference data of each brightness adjustment region to obtain brightness compensation data of each brightness adjustment region; and performing second compensation operation on the standard brightness data of the brightness adjustment region based on the brightness compensation data of each brightness adjustment region to obtain target brightness data corresponding to each pixel point in the brightness adjustment region.
In some embodiments, the determining module is further configured to determine average luminance data of a normal display area and each of the luminance adjustment areas of the display screen based on the initial luminance data of the reference image; and determining brightness difference data of each brightness adjustment region of the display screen based on the average brightness data of each normal display region and each brightness adjustment region of the display screen and the initial brightness data of each brightness adjustment region.
In some embodiments, the determining module is further configured to determine average luminance data of a normal display area and each of the luminance adjustment areas of the display screen; and determining brightness difference data of each brightness adjustment region of the display screen based on the average brightness data of each normal display region and each brightness adjustment region of the display screen and the initial brightness data of each brightness adjustment region.
Next, an electronic device according to an embodiment of the present application is described with reference to fig. 10. Fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the application.
As shown in fig. 10, the electronic device 900 includes one or more processors 901 and memory 902.
The processor 902 may be a Central Processing Unit (CPU) or other form of processing unit having data processing and/or instruction execution capabilities and may control other components in the electronic device 900 to perform desired functions.
Memory 902 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and/or nonvolatile memory. Volatile memory can include, for example, random Access Memory (RAM) and/or cache memory (cache) and the like. The non-volatile memory may include, for example, read Only Memory (ROM), hard disk, flash memory, and the like. One or more computer program instructions may be stored on a computer readable storage medium and the processor 902 may execute the program instructions to implement the brightness compensation methods and/or other desired functions of the various embodiments of the present application as mentioned above. Various contents such as initial brightness data of a reference image may also be stored in the computer-readable storage medium.
In one example, the electronic device 900 may further include: an input device 903 and an output device 904, which are interconnected by a bus system and/or other forms of connection mechanisms (not shown).
The input device 903 may include, for example, a keyboard, a mouse, and the like.
The output device 904 may output various information including target luminance data corresponding to each pixel point to the outside. The output means 904 may include, for example, a display, speakers, a printer, and a communication network and remote output devices connected thereto, etc.
Of course, only some of the components of the electronic device 900 that are relevant to the present application are shown in fig. 9 for simplicity, components such as buses, input/output interfaces, etc. are omitted. In addition, the electronic device 900 may include any other suitable components depending on the particular application.
In addition to the methods and apparatus described above, embodiments of the application may also be a computer program product comprising computer program instructions which, when executed by a processor, cause the processor to perform the steps in the brightness compensation method according to the various embodiments of the application described above in this specification.
The computer program product may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server.
Furthermore, embodiments of the present application may also be a computer-readable storage medium, on which computer program instructions are stored, which, when being executed by a processor, cause the processor to perform the steps in the luminance compensation method according to the various embodiments of the present application described in the present specification.
A computer readable storage medium may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The basic principles of the present application have been described above in connection with specific embodiments, but it should be noted that the advantages, benefits, effects, etc. mentioned in the present application are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be construed as necessarily possessed by the various embodiments of the application. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the application is not necessarily limited to practice with the above described specific details.
The block diagrams of the devices, apparatuses, devices, systems referred to in the present application are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
It is also noted that in the apparatus, devices and methods of the present application, the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present application.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the application to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.

Claims (10)

1.A method for compensating brightness of a display screen, comprising:
acquiring initial brightness data of a reference image displayed by the display screen under a target gray level, wherein the initial brightness data is acquired by brightness acquisition equipment;
Determining a normal display area and each brightness adjustment area of the display screen based on the initial brightness data of the reference image, and calculating brightness difference data of each brightness adjustment area relative to the normal display area, wherein the brightness of the brightness adjustment area is lower than that of the normal display area;
Performing a first compensation operation on the initial brightness data of each pixel point of the reference image based on the initial brightness data of the reference image and the brightness difference data of each brightness adjustment region to obtain standard brightness data of each pixel point in the reference image;
And performing a second compensation operation on the standard brightness data of each brightness adjustment region based on the brightness difference data of each brightness adjustment region and the standard brightness data of each pixel point to obtain target brightness data corresponding to each pixel point in the brightness adjustment region so as to complete brightness compensation of the display screen.
2. The luminance compensation method according to claim 1, wherein before the first compensation operation is performed on the initial luminance data of each pixel point of the reference image based on the initial luminance data of the reference image and the luminance difference data of each luminance adjustment region, obtaining standard luminance data of each pixel point in the reference image, further comprising:
Acquiring anode initialization time corresponding to the display screen;
The first compensation operation is performed on the initial brightness data of each pixel point of the reference image based on the initial brightness data of the reference image and the brightness difference data of each brightness adjustment area, so as to obtain standard brightness data of each pixel point in the reference image, including:
Correcting the brightness difference data of each brightness adjustment region into relative brightness data based on the anode initialization time of the display screen, wherein the relative brightness data is used for representing brightness change of each brightness adjustment region relative to the center of the display screen;
Calculating brightness compensation data corresponding to the display screen by utilizing demura algorithm based on the initial brightness data of the reference image and the relative brightness data of each brightness adjustment area, and performing the first compensation operation on the initial brightness data of each pixel point by utilizing the brightness compensation data to obtain standard brightness data of each pixel point.
3. The brightness compensation method according to claim 2, wherein the calculating, by using demura algorithm, the brightness compensation data corresponding to the display screen based on the initial brightness data of the reference image and the relative brightness data of the brightness adjustment regions, and performing the first compensation operation on the initial brightness data of each pixel by using the brightness compensation data, to obtain the standard brightness data of each pixel includes:
Correcting the relative brightness data of each brightness adjustment area into the brightness data of a normal display area;
calculating brightness compensation data corresponding to the display screen by utilizing demura algorithm based on the initial brightness data of the reference image and the brightness data of the normal display area, and performing the first compensation operation on the initial brightness data of each pixel point by utilizing the brightness compensation data to obtain standard brightness data of each pixel point.
4. The brightness compensation method according to claim 2, wherein the correcting the brightness difference data of the respective brightness adjustment regions to relative brightness data based on the anode initialization time of the display screen includes:
setting initialization compensation values corresponding to the brightness adjustment areas based on the anode initialization time of the display screen;
And correcting the brightness difference data of each brightness adjustment region into the relative brightness data by using the initialization compensation value corresponding to each brightness adjustment region.
5. The method of any one of claims 1 to 4, wherein performing a second compensation operation on the standard luminance data of each luminance adjustment region based on the luminance difference data of each luminance adjustment region and the standard luminance data of each pixel point to obtain target luminance data corresponding to each pixel point in the luminance adjustment region, so as to complete luminance compensation of the display screen, includes:
Determining standard brightness data of the brightness adjustment area from the standard brightness data of each pixel point;
Performing a weighting processing operation on the brightness difference data of each brightness adjustment region based on a preset weight value to obtain brightness compensation data of each brightness adjustment region;
And carrying out second compensation operation on the standard brightness data of the brightness adjustment areas based on the brightness compensation data of the brightness adjustment areas to obtain target brightness data corresponding to each pixel point in the brightness adjustment areas.
6. The method according to any one of claims 1 to 4, wherein the determining a normal display area and each luminance adjustment area of the display screen based on the initial luminance data of the reference image, and calculating luminance difference data of each luminance adjustment area with respect to the normal display area, comprises:
Determining average brightness data of a normal display area and each brightness adjustment area of the display screen based on the initial brightness data of the reference image;
And determining brightness difference data of each brightness adjustment region of the display screen based on the average brightness data of each normal display region and each brightness adjustment region of the display screen and the initial brightness data of each brightness adjustment region.
7. The method according to claim 6, wherein the determining the luminance difference data of each luminance adjustment region of the display screen based on the average luminance data of each of the normal display region and each luminance adjustment region of the display screen and the initial luminance data of each luminance adjustment region, comprises:
Setting preset brightness data of each pixel point of the display screen based on average brightness data of a normal display area and each brightness adjustment area of the display screen;
and carrying out difference operation on preset brightness data of each pixel point of the display screen and initial brightness data of each brightness adjustment region, and determining brightness difference data of each brightness adjustment region.
8. A brightness compensation device for a display screen, comprising:
The acquisition module is used for acquiring initial brightness data of a reference image displayed by the display screen under the target gray scale by utilizing brightness acquisition equipment;
The determining module is used for determining a normal display area and each brightness adjustment area of the display screen based on the initial brightness data of the reference image, and calculating brightness difference data of each brightness adjustment area relative to the normal display area, wherein the brightness of the brightness adjustment area is lower than that of the normal display area;
The first compensation module is used for carrying out a first compensation operation on the initial brightness data of each pixel point of the reference image based on the initial brightness data of the reference image and the brightness difference data of each brightness adjustment area to obtain standard brightness data of each pixel point in the reference image;
And the second compensation module is used for carrying out second compensation operation on the standard brightness data of each brightness adjustment area based on the brightness difference data of each brightness adjustment area and the standard brightness data of each pixel point to obtain target brightness data corresponding to each pixel point in the brightness adjustment area so as to complete brightness compensation of the display screen.
9. A computer-readable storage medium, characterized in that the storage medium stores computer instructions that are suitable for execution by a processor and that the computer instructions, when executed by the processor, implement the brightness compensation method according to any one of claims 1 to 7.
10. A display device comprising the luminance compensation device according to claim 8 and a display screen, wherein the luminance compensation device compensates for the luminance of the display screen when the display screen performs a display operation.
CN202410140978.1A 2024-01-31 2024-01-31 Display screen brightness compensation method and device, storage medium and display device Pending CN117912409A (en)

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Application Number Priority Date Filing Date Title
CN202410140978.1A CN117912409A (en) 2024-01-31 2024-01-31 Display screen brightness compensation method and device, storage medium and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410140978.1A CN117912409A (en) 2024-01-31 2024-01-31 Display screen brightness compensation method and device, storage medium and display device

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