Display panel brightness compensation method, display panel and storage medium

Abstract

The present invention discloses a display panel brightness compensation method, a display panel, and a storage medium. The display panel brightness compensation method includes obtaining first brightness compensation data for the display panel, the first brightness compensation data being brightness compensation data of the display panel obtained using a preset compensation algorithm; obtaining usage time data of the display panel and obtaining a compensation coefficient based on the usage time data; adjusting the first brightness compensation data using the compensation coefficient to obtain second brightness compensation data; and performing brightness compensation on the display panel using the second brightness compensation data. Through the above-described method, the present invention can adjust the brightness compensation level according to the usage time of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of optoelectronic display technology, and in particular to a display panel brightness compensation method, a display panel, and a storage medium. Background Art

[0002] OLEDs are gaining increasing popularity due to their ultra-thin, self-luminous nature, wide viewing angle, fast response, high luminous efficiency, excellent temperature adaptability, low drive voltage, and low energy consumption. However, due to production processes and / or environmental influences, OLED panels sometimes exhibit mura. This mura can be compensated for by brightness correction using the driver IC. Existing compensation methods cannot adjust the degree of compensation based on the age of the OLED panel, resulting in inadequate compensation. Summary of the Invention

[0003] The main technical problem solved by the present invention is to provide a display panel brightness compensation method, a display panel and a storage medium, which can adjust the brightness compensation degree according to the usage time of the display panel.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: providing a display panel brightness compensation method, the display panel brightness compensation method includes obtaining first brightness compensation data of the display panel, the first brightness compensation data is the brightness compensation data of the display panel obtained using a preset compensation algorithm; obtaining usage time data of the display panel, and obtaining a compensation coefficient based on the usage time data; adjusting the first brightness compensation data using the compensation coefficient to obtain second brightness compensation data; and using the second brightness compensation data to perform brightness compensation on the display panel.

[0005] In one embodiment, obtaining the compensation coefficient based on the usage time data of the display panel includes: obtaining a correlation between the usage time and the compensation coefficient; and obtaining the compensation coefficient matching the usage time data of the display panel using the correlation.

[0006] In one embodiment, obtaining the correlation between the usage time and the compensation coefficient includes: obtaining initial compensation data of the sample panel, the initial compensation data being the brightness compensation data of the sample panel at the initial moment; performing aging processing on the sample panel to obtain aging compensation data, the aging compensation data being the brightness compensation data of the sample panel after being used for a predetermined period of time; obtaining the ratio of the aging compensation data to the initial compensation data to obtain the sample compensation coefficient; and obtaining the correlation between the usage time and the compensation coefficient through statistical training using multiple groups of sample data, wherein each group of sample data includes a sample compensation coefficient and corresponding usage time data.

[0007] In one embodiment, the training method includes fitting or machine learning.

[0008] In one embodiment, the association relationship includes: the compensation coefficient increases in direct proportion to the increase in usage time.

[0009] In one embodiment, the association relationship includes: defining a plurality of usage time intervals, and each usage time interval corresponds to a compensation coefficient.

[0010] In one embodiment, adjusting the first brightness compensation data using the compensation coefficient to obtain the second brightness compensation data includes: multiplying the first brightness compensation data by the compensation coefficient to obtain the second brightness compensation data.

[0011] In one embodiment, obtaining the compensation coefficient based on the usage time data of the display panel includes: receiving a compensation instruction, the compensation instruction is generated based on the usage time data of the display panel, and the compensation instruction carries the compensation coefficient; parsing the compensation instruction to obtain the compensation coefficient.

[0012] In order to solve the above technical problems, another technical solution adopted by the present invention is: providing a display panel, the display panel includes a processor and a memory, the processor is used to obtain first brightness compensation data of the display panel, the first brightness compensation data is the brightness compensation data of the display panel obtained using a preset compensation algorithm, and the preset compensation algorithm is stored in the memory; obtaining the usage time data of the display panel, and obtaining a compensation coefficient based on the usage time data; adjusting the first brightness compensation data using the compensation coefficient to obtain second brightness compensation data; and using the second brightness compensation data to perform brightness compensation on the display panel.

[0013] In one embodiment, the memory stores an association relationship between the usage time and the compensation coefficient, and the compensation coefficient matching the usage time data of the display panel can be obtained by using the association relationship.

[0014] In one embodiment, the display panel also includes a compensation interface, which is coupled to the processor and is used to receive compensation instructions. The compensation instructions are generated based on the usage time data of the display panel. The compensation instructions carry a compensation coefficient so that the processor parses the compensation instructions to obtain the compensation coefficient.

[0015] To solve the above technical problems, a technical solution adopted by the present invention is: providing a computer-readable storage medium, which stores a program or instruction, and when the program or instruction is executed, it can implement any of the display panel brightness compensation methods described above.

[0016] The beneficial effect of the present invention is: different from the existing technology, the present invention obtains the usage time data of the display panel, obtains the compensation coefficient based on the usage time data, and uses the compensation coefficient to adjust the brightness compensation data, which can compensate for the influence of the usage time on the compensation strength and achieve the expected compensation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a flow chart of a method for compensating brightness of a display panel in an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of the brightness compensation strength of the display panel at different times in an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the correlation between the compensation coefficient and the usage time in the embodiment of the present application;

[0020] Figure 4 This is a schematic structural diagram of a display panel in an embodiment of the present application;

[0021] Figure 5 is a schematic structural diagram of a processor of a display panel in an embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of the structure of a computer-readable storage medium in an embodiment of the present application;

[0023] Figure 7 It is a structural diagram of a display panel brightness compensation system in an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and effects of this application clearer and more specific, this application is further described in detail below with reference to the accompanying drawings and examples.

[0025] See also Figure 1 , Figure 1 FIG. 1 is a flow chart of a display panel brightness compensation method according to an embodiment of the present application. In this embodiment, the display panel brightness compensation method includes:

[0026] S110: Acquire first brightness compensation data of the display panel.

[0027] The first brightness compensation data is brightness compensation data of the display panel obtained by using a preset compensation algorithm.

[0028] Brightness compensation for display panels is typically performed to eliminate mura. This means the compensation algorithm is typically a DeMura compensation algorithm. In existing solutions, a preset DeMura compensation algorithm is typically written into the product's memory before the display panel leaves the factory. When brightness compensation is needed, the stored DeMura compensation algorithm is called to calculate and obtain brightness compensation data.

[0029] Specifically, obtaining the brightness data of the display panel can be obtaining the brightness data of the display panel at the moment to be compensated, that is, obtaining the current brightness data of the display panel, and then obtaining the target brightness data of the display panel at the moment to be compensated. The obtained current brightness data of the display panel is used as an input parameter, combined with the target brightness data of the display panel, and the first brightness compensation data corresponding to the brightness data of the display panel at the current moment is generated through the DeMura compensation algorithm.

[0030] Generally, when writing a DeMura compensation algorithm into a product, the corresponding compensation strength is set according to the degree of Mura of the display panel, that is, the specific compensation algorithm parameters are set. After the algorithm parameters are set, the DeMura compensation algorithm is written to the memory for backup. In existing solutions, once the DeMura compensation algorithm is written, its compensation algorithm parameters cannot be adjusted, such as the compensation strength. In other words, the compensation strength does not change with the increase in the use time of the display panel. However, as the display panel is used for a longer time, the internal components age and its Mura level changes. If the compensation strength is not adjusted, it will lead to inadequate compensation.

[0031] This is because some DeMura is compensated by increasing the grayscale and driving current in the dark Mura area. In this process, the pixels in the Mura area are more affected than those in normal areas. Long-term use of the display panel will inevitably lead to the situation where the compensation requirement of the Mura area at time Tn (a certain time after a period of use) is greater than the compensation requirement at time T0 (the initial time). Figure 2 , Figure 2 Schematic diagram of the brightness compensation strength of the display panel at different times in the embodiment of the present application. Figure 2 As shown, the compensation strength will vary with different usage durations. If the compensation strength remains unchanged, the compensation effect will be poor. The existing solution only saves the compensation strength at time T0 and is not adjustable during this period. This inevitably results in significant under-compensation at time Tn, reducing the quality and display quality of the display device. This means that the first brightness compensation data is not optimal and may not achieve the expected compensation effect.

[0032] S120: Acquire usage time data of the display panel, and acquire a compensation coefficient based on the usage time data.

[0033] Among them, in order to maintain the display effect of the display panel in the later stage of use, it is necessary to adjust the compensation strength of DeMura with the length of use. The usage time data of the display panel can be obtained, and the usage time data is the actual usage time value of the display panel, such as 40 hours of use, etc., and then the compensation coefficient is obtained according to the degree of influence of the usage time on Mura. The compensation coefficient can be used to correct the calculated first brightness compensation data. The degree of influence of different usage times on Mura may be the same or different, which may be a large deviation or almost no deviation. Therefore, the degree of correction and adjustment required under different usage times may be the same or different.

[0034] S130: Adjust the first brightness compensation data using the compensation coefficient to obtain second brightness compensation data.

[0035] The second brightness compensation data may be obtained by multiplying the first brightness compensation data by the compensation coefficient.

[0036] S140: Performing brightness compensation on the display panel using the second brightness compensation data.

[0037] Among them, in the solution provided in the present application, the influence of the usage time of the display panel on the display panel Mura is taken into consideration, and the compensation data is adaptively adjusted according to the usage time of the display panel, so that brightness compensation can be performed more accurately.

[0038] In one embodiment, the compensation coefficient is a parameter associated with the usage time of the display panel, and there may be a specific correlation between the two, that is, the correlation between the usage time of the display panel and the compensation coefficient can be obtained, and the compensation coefficient matching the usage time of the display panel can be obtained using the correlation.

[0039] In one embodiment, a network model can be trained to correlate display panel usage time with compensation coefficients. This network model, taking display panel usage time data as input, can output a matching compensation coefficient. This approach eliminates the need to store numerous tables of associated data; instead, only the computational relationship between the two (i.e., the computational model) is needed to quickly calculate the compensation coefficient.

[0040] In one embodiment, a mapping table between display panel usage time and compensation coefficients may be stored. By querying the mapping table, the compensation coefficient corresponding to the usage time data can be obtained. Each usage time data may correspond to a compensation coefficient, or each usage time interval may correspond to a compensation coefficient, i.e., the corresponding compensation coefficient is the same for usage time data within the interval.

[0041] In one embodiment, an aging experiment may be used to obtain a correlation between the compensation coefficient and the usage time of the display panel.

[0042] Specifically, a sample panel is provided, and the brightness value of the initial (at time T0) mura area of ​​the sample panel is obtained, thereby obtaining initial brightness compensation data for the sample panel. For example, a CCD (Charge Coupled Device) camera can be used to capture the mura information of the sample panel at time T0. Then, the image data can be reversely compensated based on the brightness flatness to achieve the purpose of brightness correction flatness, thereby obtaining the brightness compensation data T0 normal gain of the sample panel at time T0.

[0043] The sample panel is then placed in an aging test to simulate the actual usage environment. At time Tn, after a period of aging, the aging of the mura area is checked to obtain the brightness compensation data at time Tn. Based on the DeMura principle and the aging of the display panel's luminescent materials, it is found that pixel aging in the mura area accelerates, resulting in more severe mura and incapacitating the original DeMura compensation. The display panel at time Tn can be re-imaged with DeMura to obtain the mura information at time Tn and generate the brightness compensation data, Tn Normal Gain.

[0044] Compare the compensation strength at time T0 with the compensation strength at time Tn to obtain the compensation coefficient (Global Gain value) at time Tn: Tn Global Gain = Tn Normal Gain / T0 Normal Gain.

[0045] In this way, multiple sample panels are prepared. The multiple sample panels can be multiple display panels of a series with similar performance, or multiple display panels of the same model, or sample machines, etc. There is a certain sample diversity between the multiple sample panels, but the models and types of the multiple sample panels should not differ too much, so as to avoid data incompatibility caused by excessive device differences. The multiple sample panels are aged for different periods of time, and multiple compensation data after aging are obtained. Then, the ratio of each compensation data after aging to the compensation data at the initial moment is calculated to obtain the sample compensation coefficients at multiple different moments. The compensation coefficients at multiple different moments are comprehensively counted to obtain the correlation between the compensation coefficient and the usage time.

[0046] See also Figure 3 , Figure 3: This is a schematic diagram of the correlation between the compensation coefficient and the usage time in the embodiment of the present application. As shown in the figure, the compensation coefficient can be proportional to the usage time, that is, as the usage time increases, the compensation coefficient gradually increases. Of course, in other embodiments, the compensation coefficient and the usage time can also be in other forms of correlation. For example, as the usage time increases, the compensation coefficient first gradually increases and then tends to be flat. This is because after a certain period of use, the degree of aging of the equipment is basically fixed, so the compensation coefficient can no longer increase. Using the correlation between the compensation coefficient and the usage time, after knowing the usage time, the corresponding compensation coefficient can be found.

[0047] In the implementation provided in the present application, a compensation data adjustment module is integrated into the existing DeMura algorithm, and different degrees of brightness compensation data adjustment are performed under different usage durations, so as to obtain a more accurate compensation effect.

[0048] See also Figure 4 , Figure 4 is a schematic diagram of the structure of a display panel in an embodiment of the present application. In this embodiment, a display panel is provided. The display panel 20 includes a processor 21 and a memory 22. The memory 22 stores a preset compensation algorithm. The processor 21 is configured to obtain first brightness compensation data for the display panel. The first brightness compensation data is brightness compensation data of the display panel obtained using the preset compensation algorithm. The processor 21 is also configured to obtain usage time data of the display panel and obtain a compensation coefficient based on the usage time data. The processor 21 is further configured to adjust the first brightness compensation data using the compensation coefficient to obtain second brightness compensation data. The second brightness compensation data is then used to perform brightness compensation on the display panel.

[0049] The processor 21 and the memory 22 can be integrated into a driver IC of the display panel. The memory 22 is used to store program data of some algorithms, and the processor 21 can be divided into multiple modules, each of which is used to execute different data processing methods.

[0050] See also Figure 5 , Figure 5 2 is a schematic diagram of the structure of the processor of the display panel in the embodiment of the present application. In this embodiment, the processor 21 includes a brightness compensation module 211 and a data statistics module 212. Specifically, the brightness compensation module 211 includes a compensation data calculation submodule and a compensation data adjustment submodule.

[0051] The compensation data calculation submodule is configured to obtain first brightness compensation data for the display panel using a preset compensation algorithm. The compensation data adjustment submodule is configured to obtain a compensation coefficient based on the display panel usage duration data, and then use the compensation coefficient to adjust the first brightness compensation data to obtain second brightness compensation data, thereby compensating the display panel.

[0052] Among them, the data statistics module 212 is used to obtain multiple sample compensation coefficients and the usage time data corresponding to each sample compensation coefficient. These sample data are used to statistically obtain the correlation between the usage time of the display panel and the compensation coefficient, so that the compensation data adjustment sub-module can call to obtain the compensation coefficient that matches the actual usage time.

[0053] In this implementation, a compensation data adjustment (GainAuto Adapt) submodule is added to the brightness compensation module (Demura IP architecture), and a usage duration and compensation coefficient (Time Counter & Image APL) statistics module is added to the processor (IC architecture) to record the lighting time of the display panel mura area. The Demura IP dynamically adjusts the size of the mura compensation data based on the display panel mura area attenuation trend and Global Gain adjustment trend collected in the laboratory by the Time Counter & Image APL statistics module, thereby achieving the purpose of DeMura's compensation accuracy adjustment at time Tn.

[0054] See also Figure 6 , Figure 6 : is a structural diagram of a computer-readable storage medium in an embodiment of the present application. In this embodiment, a computer-readable storage medium is provided. The computer-readable storage medium 31 of the embodiment of the present application stores instructions or program data 32. When the instructions or program data 32 are executed, the method provided by any embodiment of the display panel brightness compensation method of the present application and any non-conflicting combination is implemented. Among them, the instructions or program data 32 can be formed into a program file and stored in the above-mentioned storage medium 31 in the form of a software product, so that a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) executes all or part of the steps of the methods of each embodiment of the present application. The aforementioned storage medium 31 includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or terminal devices such as a computer, a server, a mobile phone, and a tablet.

[0055] In one embodiment, in order to achieve more flexible adjustment of brightness compensation data, the present application improves the display panel structure and adds a compensation interface to the display panel. The compensation interface can be connected to an external control device, receive compensation instructions from the external control device, and perform brightness compensation based on the compensation instructions.

[0056] Specifically, existing DeMura technology only performs DeMura compensation once before the display panel leaves the factory (at time T0), and the display panel is shipped after meeting the shipping standards. There is no relevant treatment method for the situation where the Mura of the display panel worsens with the length of use after shipment. Current DeMura technology performs DeMura compensation at time T0, that is, the display panel is only photographed and corrected at the time of leaving the factory. This will lead to the situation where the Mura worsens during use cannot be fully compensated. There is no channel for secondary repair of the worsened Mura, and the only option is to replace the new screen, which shortens the life of the display panel and increases the repair cost. That is, in conventional brightness compensation solutions, the Mura information of the display screen is obtained before the display device leaves the factory. For example, the compensation strength can be reserved according to product requirements, and the compensation strength is a fixed parameter. The compensation strength does not change with the length of time the display panel is used. In addition, CCD equipment is expensive due to its high precision requirements, and the shooting environment and shooting machine are limited. The current industry does not have a method and structure for after-sales repair of the entire machine. However, in order to maintain the screen effect in the later stages of screen use, the DeMura compensation strength needs to be adjusted as the use time increases.

[0057] See also Figure 7 , Figure 7 FIG2 is a schematic diagram of the structure of a display panel brightness compensation system in an embodiment of the present application. In this embodiment, a display panel brightness compensation system 40 is provided. Display panel brightness compensation system 40 includes a display panel 41 and a control device 42. Display panel 41 is provided with a compensation interface 411. One end of compensation interface 411 is coupled to a processor, and the other end is used for communication with control device 42 to receive compensation instructions from control device 42.

[0058] The control device 42 may be an electronic device such as a mobile phone, a computer, or a server, which can provide a human-computer interaction interface to facilitate user operation.

[0059] A compensation interface 411 is newly added to the IC architecture of the display panel. The compensation interface 411 can be connected to an external control device 42 so as to modify the DeMura algorithm stored in the display panel using the control device 42 .

[0060] Specifically, the usage time of the display panel can be obtained and the usage time can be sent to the control device 42. The control device 42 can obtain the compensation coefficient based on the degree of aging. Among them, it can be the compensation coefficient customized by the user according to the usage time, or it can be the compensation coefficient calculated by the control device 42 based on the usage time. By using an external control device 42, a more powerful processor can be used and a more sophisticated calculation method can be used to improve the accuracy of the compensation coefficient. The control device 42 then sends the compensation coefficient to the display panel in the form of a compensation instruction (that is, the compensation instruction carries the compensation coefficient, and the compensation instruction is generated based on the usage time), so that the processor of the display panel receives and parses the compensation coefficient and adjusts the brightness compensation data.

[0061] In one embodiment, the display panel 41 further includes a dimming interface 412. The compensation interface 411 can be similar to the dimming interface 412 depending on the accuracy requirements. This interface is connected to the control device 42 (system AP end). The system AP end can adjust the compensation coefficient in its engineering mode or user setting mode, thereby controlling the adjustment of the compensation strength.

[0062] One end of the compensation interface can be connected to the mobile phone operating system, laptop system, or vehicle host (display panel processor) via an I2C or SPI interface; the other end of the compensation interface can be connected to an external control device 42, which can be a terminal system. A UX design adjustment button or adjustment bar can be reserved on the terminal system side and opened to the user interface or engineering interface. If it is opened to the user interface (the interface background is designed to be pure white with multiple grayscales), after one or two years of use, when the user discovers that the screen has Mura, this button can be adjusted to adjust the Mura compensation intensity to achieve user satisfaction. If it is opened to the engineering interface, when the user discovers that the screen has Mura problems and reports them to the after-sales point or 4S store, the maintenance personnel can enter the engineering mode and simply adjust the parameters to achieve the repair of the screen, achieving a breakthrough in DeMura repair from 0 to 1 in the Tn stage.

[0063] In this embodiment, by designing a global compensation coefficient parameter, the parameter can adjust the current global compensation strength to achieve adjustment of the compensation strength for different usage times. At the same time, when the user finds that the compensation strength is not good after use and Mura appears on the screen, the user can perform DeMura correction by themselves or at a maintenance site through simple adjustments, thereby achieving the goal of correct DeMura of the screen throughout its life.

[0064] The display panel and brightness compensation method provided in the above embodiments can be applied to laptop display devices and automotive display devices. Both product forms require a long product life cycle, with laptops generally requiring 5-8 years and automotive displays generally requiring 8-12 years. Through the method provided in this application, if mura is discovered during use, adjustments can be easily made, reducing maintenance costs and extending the service life of the display device.

[0065] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A display panel brightness compensation method, characterized in that: include: Acquire first brightness compensation data of the display panel, where the first brightness compensation data is brightness compensation data of the display panel acquired using a preset compensation algorithm; Acquiring usage time data of the display panel, and acquiring a compensation coefficient based on the usage time data; adjusting the first brightness compensation data using the compensation coefficient to obtain second brightness compensation data; performing brightness compensation on the display panel using the second brightness compensation data; The obtaining of the compensation coefficient based on the usage duration data includes: Obtaining a correlation between the usage time of the display panel and a compensation coefficient; Obtaining a compensation coefficient matching the usage time data of the display panel by using the association relationship; The obtaining of the correlation between the usage time of the display panel and the compensation coefficient includes: Acquire initial compensation data of the sample panel, where the initial compensation data is brightness compensation data of the sample panel at an initial moment; Performing an aging process on the sample panel to obtain aging compensation data, wherein the aging compensation data is brightness compensation data of the sample panel after being used for a predetermined period of time; Obtaining a ratio of the aging compensation data to the initial compensation data to obtain a sample compensation coefficient; Utilizing statistical training of multiple groups of sample data to obtain a correlation between the usage time and the compensation coefficient, each group of sample data includes a sample compensation coefficient and corresponding usage time data; The training method includes: fitting or machine learning.

2. The display panel brightness compensation method according to claim 1, wherein: The correlation relationship is: the compensation coefficient increases in direct proportion to the increase in usage time; or The association relationship is: multiple usage time intervals are defined, and each usage time interval corresponds to a compensation coefficient.

3. The display panel brightness compensation method according to claim 1, wherein: The adjusting the first brightness compensation data by using the compensation coefficient to obtain second brightness compensation data includes: The first brightness compensation data is multiplied by the compensation coefficient to obtain the second brightness compensation data.

4. The display panel brightness compensation method according to claim 1, wherein: The obtaining of the compensation coefficient based on the usage time data of the display panel includes: receiving a compensation instruction, where the compensation instruction is generated based on usage time data of the display panel and carries a compensation coefficient; The compensation instruction is parsed to obtain the compensation coefficient.

5. A display panel, characterized in that: The system comprises a processor and a memory, wherein the processor is configured to: Acquire first brightness compensation data of the display panel, where the first brightness compensation data is brightness compensation data of the display panel acquired using a preset compensation algorithm, and the preset compensation algorithm is stored in the memory; Acquiring usage time data of the display panel, and acquiring a compensation coefficient based on the usage time data; adjusting the first brightness compensation data using the compensation coefficient to obtain second brightness compensation data; performing brightness compensation on the display panel using the second brightness compensation data; The obtaining of the compensation coefficient based on the usage duration data includes: Obtaining a correlation between the usage time of the display panel and a compensation coefficient; Obtaining a compensation coefficient matching the usage time data of the display panel by using the association relationship; The obtaining of the correlation between the usage time of the display panel and the compensation coefficient includes: Acquire initial compensation data of the sample panel, where the initial compensation data is brightness compensation data of the sample panel at an initial moment; Performing an aging process on the sample panel to obtain aging compensation data, wherein the aging compensation data is brightness compensation data of the sample panel after being used for a predetermined period of time; Obtaining a ratio of the aging compensation data to the initial compensation data to obtain a sample compensation coefficient; Utilizing statistical training of multiple groups of sample data to obtain a correlation between the usage time and the compensation coefficient, each group of sample data includes a sample compensation coefficient and corresponding usage time data; The training method includes: fitting or machine learning.

6. The display panel according to claim 5, wherein: The memory stores an association relationship between usage time and compensation coefficient, and the compensation coefficient matching the usage time data of the display panel can be obtained by using the association relationship.

7. The display panel according to claim 5, wherein: The display panel further includes: A compensation interface is coupled to the processor and is used to receive a compensation instruction, wherein the compensation instruction is generated based on the usage time data of the display panel, and the compensation instruction carries a compensation coefficient so that the processor parses the compensation instruction to obtain the compensation coefficient.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a program or instruction, and when the program or instruction is executed, the display panel brightness compensation method according to any one of claims 1 to 4 can be implemented.

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