Display data processing methods, display devices, and computer storage media

Abstract

Embodiments of the present application provide a display data processing method, a display device and a computer storage medium. The display data processing method comprises: compensating a first display panel based on display data of the first display panel and first initial compensation data, obtaining a first compensation data set and an identifiable difference of the first display panel before and after compensation; obtaining a unit compensation value for quantifying a compensation degree of the compensation based on the identifiable difference and the first compensation data set; compensating a second display panel based on display data of the second display panel and second initial compensation data, obtaining a second compensation data set; and obtaining an identifiable difference change value corresponding to the second display panel according to the unit compensation value and the second compensation data set. Through the embodiments of the present application, the compensation degree is accurately quantified.

Description

Technical Field

[0001] This application relates to the field of display processing technology, and in particular to a display data processing method, a display device, and a computer storage medium. Background Technology

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide range of applications, becoming the mainstream of display devices.

[0003] However, the current manufacturing process of OLED display products needs improvement. Summary of the Invention

[0004] In view of this, embodiments of this application provide a display data processing method to at least partially solve the above-mentioned problems.

[0005] According to a first aspect of the embodiments of this application, a display data processing method is provided, the method comprising:

[0006] Based on the display data of the first display panel and the first initial compensation data, the first display panel is compensated to obtain the first compensation data set and the identifiable differences of the first display panel before and after compensation.

[0007] Based on the identifiable differences and the first compensation data set, a unit compensation value is obtained to quantify the degree of compensation.

[0008] Based on the display data of the second display panel and the second initial compensation data, the second display panel is compensated to obtain the second compensation data set;

[0009] Based on the unit compensation value and the second compensation data set, the identifiable difference change value corresponding to the second display panel is obtained.

[0010] Optionally, obtaining a unit compensation value for quantifying the degree of compensation based on the identifiable differences and the first compensation data set includes:

[0011] Based on the identifiable differences and the exponential compensation value of the first compensation data corresponding to each pixel in the first compensation data set, a unit compensation value is obtained to quantify the degree of compensation.

[0012] Optionally, obtaining a unit compensation value for quantifying the degree of compensation based on the identifiable difference and the exponential compensation value of the first compensation data corresponding to each pixel in the first compensation data set includes:

[0013] Based on the identifiable differences and the squared value of the first compensation data corresponding to each pixel in the first compensation data set, a unit compensation value is obtained to quantify the degree of compensation.

[0014] Optionally, obtaining a unit compensation value for quantifying the degree of compensation based on the identifiable difference and the squared value of the first compensation data corresponding to each pixel in the first compensation data set includes:

[0015] Based on the identifiable differences and the sum of the squared values ​​of the first compensation data corresponding to each pixel in the first compensation data set, a unit compensation value is obtained to quantify the degree of compensation.

[0016] Optionally, obtaining the identifiable difference change value corresponding to the second display panel based on the unit compensation value and the second compensation data set includes:

[0017] Based on the unit compensation value and the exponential compensation value of the second compensation data corresponding to each pixel in the second compensation data set, the identifiable difference change value corresponding to the second display panel is obtained.

[0018] Optionally, obtaining the identifiable difference change value corresponding to the second display panel based on the unit compensation value and the exponential compensation value of the second compensation data corresponding to each pixel in the second compensation data set includes:

[0019] The identifiable difference change value corresponding to the second display panel is obtained by the ratio of the sum of the squared values ​​of the second compensation data corresponding to each pixel in the second compensation data set to the unit compensation value.

[0020] Optionally, the method further includes:

[0021] The compensation level of the second display panel is obtained based on the identifiable difference change value corresponding to the second display panel and the preset correspondence rule; wherein, the preset correspondence rule includes the correspondence rule between different identifiable difference change values ​​corresponding to the second display panel and different compensation levels;

[0022] Optionally, the preset correspondence rule is used to indicate the proportional relationship between different identifiable difference change values ​​corresponding to the second display panel and different compensation levels.

[0023] Optionally, the display data is brightness data and / or chromaticity data.

[0024] According to a second aspect of the embodiments of this application, a display data processing method is provided, including:

[0025] Based on the display data of the first display panel and the first initial compensation data, the first display panel is compensated to obtain the first compensation data set and the identifiable differences of the first display panel before and after compensation.

[0026] Based on the identifiable differences and the first compensation data set, a unit compensation value representative value is obtained to quantify the degree of compensation.

[0027] Based on the display data of the second display panel and the second initial compensation data, the second display panel is compensated to obtain the second compensation data set;

[0028] Based on the representative value of the unit compensation value and the second compensation data set, the identifiable difference change value corresponding to the second display panel is obtained.

[0029] According to a third aspect of the embodiments of this application, a computer storage medium is provided, configured to store computer program instructions for executing a display data processing method.

[0030] According to a fourth aspect of the embodiments of this application, a display device is provided, the display device comprising:

[0031] Display panel;

[0032] and computer storage media; and,

[0033] The processor is configured to execute computer program instructions in the computer storage medium to perform operations corresponding to the display data processing method based on the display data of the display panel.

[0034] According to the display data processing scheme provided in the embodiments of this application, a compensation data set for the first display panel is obtained based on the display data of the first display panel and the first initial compensation data. Then, a compensation value per unit of identifiable difference is obtained by combining the identifiable difference of the first display panel before and after compensation, i.e., a unit compensation value. This compensation value can accurately quantify the degree of compensation. Furthermore, this unit compensation value can also be used to accurately measure the compensation effect of subsequent compensation of other panels (obtained after cutting display substrates from the same batch) from the same batch as the first display panel. Based on the display data of the second display panel and the second initial compensation data, a second compensation data set is obtained. Combining the second compensation data set and the unit compensation value, the change in identifiable difference of the second display panel after compensation is obtained, thereby determining the degree of compensation of the second display panel. This method is more accurate than visual evaluation methods, eliminates the influence of subjective factors of testers, and reduces labor costs. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0036] Figure 1 This is a flowchart illustrating the steps of a display data processing method according to an embodiment of this application;

[0037] Figure 2 This is a schematic diagram illustrating the principle of compensating for the mura region;

[0038] Figure 3 This is a schematic diagram illustrating an exemplary data processing procedure according to an embodiment of this application;

[0039] Figure 4 This is a flowchart illustrating the steps of another display data processing method according to an embodiment of this application;

[0040] Figure 5 This is a structural block diagram of a display device according to an embodiment of this application. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art should fall within the protection scope of the embodiments of this application.

[0042] For an OLED display panel, Mura is an inevitable defect. Mura is the Romanization of the Japanese Chinese character "斑" (spot), which originally means uneven and defective. Compensating the display panel can eliminate Mura and make the display screen more uniform.

[0043] In the process of implementing the present invention, the inventors found the following problems in the related art. At present, the optimization effect of compensating the Mura area of the display panel is evaluated by the method of manual visual inspection. This evaluation method is based on personal experience and judgment criteria, and is easily affected by environmental factors such as external light. Therefore, there are certain deviations in the evaluation results and urgent improvement is needed.

[0044] The following further illustrates the specific implementation of the embodiments of the present application in conjunction with the accompanying drawings of the embodiments of the present application.

[0045] Please refer to Figure 1 , which shows a step flow chart of a display data processing method according to an embodiment of the present application.

[0046] The display data processing method of this embodiment includes the following steps:

[0047] Step S102: Based on the display data of the first display panel and the first initial compensation data, compensate the first display panel to obtain a first compensation data set and the recognizable difference of the first display panel before and after compensation.

[0048] The display panel is a key part of the display, which can convert digital signals into visible images. In the embodiments of the present application, the first display panel refers to one of the display panels obtained after a whole OLED display substrate is cut. In the production process of OLED, first, a TFT (Thin Film Transistor) substrate is fabricated, which is the main step of the backplane process. Subsequently, various layers of materials are deposited on the TFT substrate through processes such as evaporation, coating, exposure, and etching to form a complete OLED structure. After these steps are completed, the obtained is the OLED substrate to be cut, and then the OLED substrate to be cut is cut into multiple small-sized display panels to meet the product requirements of different sizes and specifications.

[0049] OLED display technology has the characteristic of self-luminescence. Since each pixel in the OLED display panel acts as its own emitter, the inconsistency between pixels is inevitable, resulting in Mura defects. Therefore, targeted compensation is required.

[0050] The display data includes brightness data and / or chromaticity data. When the display data is brightness data, brightness compensation is performed on the display panel. When the display data is chromaticity data, chromaticity compensation is performed on the display panel. When the display data includes both brightness data and chromaticity data, both brightness compensation and chromaticity compensation are performed on the display panel. The order in which brightness compensation and chromaticity compensation are performed on the display panel is not important.

[0051] In one feasible approach, an optical extraction method can be used to perform initial compensation on the display panel, and then the display data processing of the embodiments of this application can be implemented on this basis. The basic operation of the optical extraction method includes: firstly, lighting up the display panel to be compensated, i.e., the first display panel, to display several images (generally grayscale images or RGB images); after the first display panel is successfully lit up, using a camera (generally a high-resolution and high-precision CCD camera, or the camera can be selected according to the parameters of the first display panel to be photographed) to photograph the images displayed on the first display panel and collect the brightness data of the images; performing compensation calculations on the brightness data according to the corresponding compensation algorithm to generate corresponding compensation data, i.e., the first initial compensation data; finally, performing brightness compensation on the first display panel according to the compensation data to obtain the first compensation data set. Among them, the above-mentioned compensation algorithm can be appropriately set by those skilled in the art according to actual needs, including but not limited to brightness compensation algorithms based on grayscale and emission time, adaptive brightness compensation algorithms, linear brightness compensation algorithms, etc., and the embodiments of this application do not limit this.

[0052] In one feasible approach, the display data of the first display panel includes the display data of each pixel in the image of the first display panel, thereby enabling analysis of each pixel. See also... Figure 2 The diagram illustrates an exemplary principle of compensating for mura areas. The display data uses luminance data. Based on the luminance data of each pixel, the diagram analyzes and identifies overly bright or dark mura areas, and then uses corresponding compensation data to compensate for them, making the compensated mura areas more uniform.

[0053] In one feasible approach, a corresponding compensation algorithm is used to calculate the compensation for the display data of the first display panel. The resulting initial compensation data is implemented in the form of a binary file, which contains the binary compensation data corresponding to each pixel. It should be noted that for the non-Mura area in the first display panel, the display condition of the pixels therein is evaluated as uniform in brightness and / or uniform in color. Therefore, the compensation data corresponding to the pixels in this area is implemented as null values, or the corresponding compensation data is a binary value of 0. All the compensation data of the first display panel constitutes a first compensation data set.

[0054] Just Notable Difference (JND) can be used to quantify the sensitivity and resolution of the human sensory system, representing the minimum change a person can perceive in response to a specific sensory stimulus. In this embodiment, Just Notable Difference (hereinafter referred to as JND) is used to represent the limit of visual differences that the human eye can perceive. The JND value of an image can be used to evaluate the quality of the current image. For example, the larger the JND value of the image of the first display panel, the higher the limit of visual differences that the human eye can perceive, and the greater the relative difference between the mura and other areas in the current image. Therefore, the image quality of the first display panel can be evaluated as lower. Conversely, the smaller the JND value of the image of the first display panel, the lower the limit of visual differences that the human eye can perceive, and the smaller the relative difference between the mura and other areas in the current image. Therefore, the image quality of the first display panel can be evaluated as higher. In practical applications, other feasible metrics can also be used to evaluate image quality, including but not limited to SSIM (Structure Similarity Index) and PSNR (Peak Signal-to-Noise Ratio).

[0055] In one feasible approach, the JND is obtained based on a model of spatial distribution based on human eye sensitivity. For example, NASA's Spatial Standard Observer (SSO) model. Based on the original image of the first display panel captured by a camera, the SSO model first performs operations such as cropping and sampling on the original image to filter out unwanted signals; it further removes suspected Mura signals from the original image to obtain the test image of the first display panel; the original image and the test image are compared, and the difference between the two is measured. The SSO model outputs the JND of the original image of the first display panel.

[0056] Step S104: Based on the identifiable differences and the first compensation data set, obtain a unit compensation value for quantifying the degree of compensation.

[0057] As mentioned earlier, in one example, a corresponding compensation algorithm is used to calculate compensation for the display data of the first display panel. The process is as follows: Figure 3 As shown by the right-pointing arrow in the left-hand interface, the obtained initial compensation data is implemented in the form of a binary file, which contains the binary compensation data corresponding to each pixel. All the compensation data of the first display panel constitute a first compensation data set, such as... Figure 3 The left side of the interface shows "offset1" and the downward arrow.

[0058] In one feasible approach, an exponential compensation value is used to obtain a unit compensation value for quantifying the degree of compensation by employing the exponential compensation value of the first compensation data corresponding to each pixel in the first compensation data set.

[0059] The use of exponential compensation values ​​avoids the problem that the compensation values ​​between display panels are not significantly different when the compensation values ​​are evenly distributed or extremely distributed in the compensation data, thus preventing the unit compensation value from being unrepresentative.

[0060] In a preferred embodiment of this application, the exponential compensation value of the first compensation data corresponding to each pixel is realized as the square of the first compensation data corresponding to each pixel. Based on this, in one feasible approach, the sum of the squares of the first compensation data corresponding to each pixel is used to obtain the total compensation value of the first display panel. This eliminates the influence of uniform distribution or extreme distribution of individual compensation values ​​on the compensation values ​​between display panels, making the unit compensation value of the display panel representative.

[0061] The JND values ​​before and after compensation on the first display panel reflect the image quality of the displayed image before and after compensation on the first display panel.

[0062] In one feasible approach, the absolute value of the difference between JND before and after compensation of the first display panel is obtained, the process being as follows: Figure 3 As shown by the upward arrow on the left side of the interface, based on this, the ratio of the sum of the squared values ​​of the first compensation data corresponding to each pixel in the first compensation data set to the absolute value of the difference between the JND values ​​before and after compensation on the first display panel is obtained, thereby obtaining the unit compensation value. This process is as follows: Figure 3 The calculation process is shown at the bottom left of the interface. Figure 3 As shown in the left-hand interface, the absolute value of the difference between JND before and after compensation on the first display panel, JND3, is obtained. Based on this, the ratio of the sum of the squares of the first compensation data corresponding to each pixel in the first compensation data set offset1 to JND3 is obtained, thus obtaining the unit compensation value JND4. The unit compensation value represents the compensation value required for one unit change in JND, realizing the quantification of the degree of compensation.

[0063] By obtaining the unit compensation value, the display data processing method of this application embodiment achieves accurate quantification of the compensation degree. Using the unit compensation value of the first display panel, the compensation degree of other panels in the same batch as the first display panel can be accurately measured.

[0064] Step S106: Based on the display data of the second display panel and the second initial compensation data, compensate the second display panel to obtain the second compensation data set.

[0065] To ensure more accurate compensation results, the second display panel employs the same compensation method as the first display panel. The compensation process for the second display panel is as follows: Figure 3 As shown by the right-hand arrow in the middle of the interface.

[0066] In one feasible approach, the first display panel and the second display panel belong to the same display substrate or different display substrates from the same production batch before being cut; wherein the first display panel and the second display panel are different parts after being cut from the same display substrate or different parts after being cut from different display substrates from the same production batch.

[0067] Step S108: Obtain the identifiable difference change value corresponding to the second display panel based on the unit compensation value and the second compensation data set.

[0068] In one feasible approach, the exponential compensation value of the second compensation data corresponding to each pixel in the second compensation data set is used to obtain the identifiable difference change value corresponding to the second display panel.

[0069] In this embodiment, the exponent level of the exponent compensation value of the second compensation data corresponding to each pixel in the second compensation data set and the exponent compensation value of the first compensation data corresponding to each pixel in the first compensation data set are set to the same value. For example, both are in square form or both are in cubic form.

[0070] In one feasible approach, the identifiable difference change value corresponding to the second display panel is obtained based on the ratio of the exponential compensation value to the unit compensation value of the second compensation data corresponding to each pixel in the second compensation data set. Figure 3 The Chinese character is represented as JND. change ).

[0071] Further, alternatively, it can be based on a second compensation data set ( Figure 3 The ratio of the sum of the squared values ​​of the second compensation data corresponding to each pixel (shown as "offset2") to the unit compensation value is used to obtain the identifiable difference change value corresponding to the second display panel. This process is as follows: Figure 3 The calculation process is shown at the bottom right of the interface. In this feasible method, the corresponding unit compensation value is obtained based on the sum of the squared values ​​of the first compensation data corresponding to each pixel in the first compensation data set. For example... Figure 3 As shown in the right-hand interface, the recognizable difference change value JND corresponding to the second display panel is obtained by comparing the sum of the squared values ​​of the second compensation data corresponding to each pixel in the second compensation data set offset2 with the unit compensation value JND4. change .

[0072] For example, when the displayed data is brightness data, a brightness compensation algorithm is used to compensate the brightness data of the first display panel to obtain initial brightness compensation data. Based on the initial brightness compensation data, the brightness of the first display panel is compensated to obtain a first brightness compensation data set offset11, and the identifiable difference of the first display panel before and after brightness compensation. Offset11 contains the first brightness compensation data of all pixels in the first display panel. The absolute value of the difference between JND and JND31 before and after brightness compensation of the first display panel is obtained. Based on this, the ratio of the sum of the squares of the first brightness compensation data corresponding to each pixel in offset11 to JND31 is obtained, thereby obtaining the unit brightness compensation value JND41. The second display panel uses the same brightness compensation method as the first display panel to obtain a second brightness compensation data set offset21. Based on the ratio of the sum of the squares of the second brightness compensation data corresponding to each pixel in offset21 to JND41, the identifiable difference change value JND corresponding to the second display panel is obtained. change1 This enables the quantification of the brightness compensation level of the second display panel.

[0073] For example, when the displayed data is chroma data, a chroma compensation algorithm is used to compensate the chroma data of the first display panel to obtain the first initial chroma compensation data. Based on the first initial chroma compensation data, chroma compensation is performed on the first display panel to obtain the first chroma compensation data set offset12, as well as the identifiable difference of the first display panel before and after chroma compensation. offset12 contains the first chroma compensation data of all pixels in the first display panel. The absolute value of the difference between JND and JND32 before and after chroma compensation of the first display panel is obtained. Based on this, the ratio of the sum of the squares of the first chroma compensation data corresponding to each pixel in offset12 to JND32 is obtained, thereby obtaining the unit chroma compensation value JND42. The second display panel uses the same chroma compensation method as the first display panel to obtain the second chroma compensation data set offset22 of the second display panel. Based on the ratio of the sum of the squares of the second chroma compensation data corresponding to each pixel in offset22 to JND42, the identifiable difference change value JND corresponding to the second display panel is obtained. change2 This enables the quantification of the color compensation level of the second display panel.

[0074] For example, when the displayed data is brightness and chromaticity, the brightness compensation algorithm and chromaticity compensation algorithm in the above embodiments are used to perform brightness compensation and chromaticity compensation respectively. The two compensation methods are not sequential, and they respectively quantify the degree of brightness compensation and the degree of chromaticity compensation of the second display panel. In other embodiments, brightness compensation and chromaticity compensation can be performed simultaneously, which is not limited here.

[0075] Based on the unit compensation value used to quantify the degree of compensation, for the second display panel, the change in JND before and after compensation can be obtained without needing to obtain the JND values ​​before and after compensation. Based on this, the degree of compensation for the second display panel is quantified. Compared to evaluation methods based on human visual perception, the quantified value is not affected by subjective human perception, improving the accuracy of the compensation degree evaluation, increasing efficiency, and reducing labor costs.

[0076] Based on the above-described display data processing method, in one feasible solution, the display data processing method of this application embodiment further includes:

[0077] The compensation level of the second display panel is obtained by matching the identifiable difference change value with a preset correspondence rule. This preset correspondence rule includes the correspondence between different identifiable difference change values ​​and different compensation levels for the second display panel. Based on this preset correspondence rule, the compensation level of the second display panel can be quickly obtained, improving processing efficiency.

[0078] The preset correspondence rules can associate different identifiable difference change values ​​of the second display panel with different compensation levels, and different compensation levels can be obtained according to different identifiable difference change values.

[0079] In one feasible approach, a preset correspondence rule indicates the proportional relationship between different identifiable difference change values ​​corresponding to the second display panel and different compensation levels. According to this preset rule, the trend of change in the compensation level is the same as the trend of change in the identifiable difference change value, thus allowing for a faster acquisition of the trend in the compensation level of the second display panel. For example, the larger the identifiable difference change value corresponding to the second display panel, the higher the compensation level. In practical applications, the preset correspondence rule can also be implemented as other feasible correspondence relationships. For example, the identifiable difference change value corresponding to the second display panel can be divided into three intervals, each corresponding to a different compensation level: "poor," "good," and "excellent."

[0080] As can be seen, the solution of this application embodiment obtains a first compensation data set for the display panel based on the display data of the first display panel and the first initial compensation data; then, combined with the identifiable difference value of the first display panel before and after compensation, a compensation value per unit identifiable difference value is obtained, i.e., a unit compensation value. This compensation value can accurately quantify the degree of compensation. Furthermore, this unit compensation value can also be used to accurately measure the compensation effect of subsequent compensation of other panels (obtained after cutting display substrates from the same batch) from the same batch as the first display panel. Based on the compensation value that increases the unit JND value, the change in JND of the second display panel can be obtained when the compensation value of the second display panel is known, thereby determining the degree of compensation of the second display panel. This is more accurate than the evaluation method based on human visual inspection, eliminates the influence of subjective factors of testers, and reduces labor costs. At the same time, using the exponential compensation value of the compensation data can avoid the problem of lack of representativeness of the compensation data caused by the uniform distribution of compensation data in the compensation data set or the extreme distribution of individual compensation data, making the display data processing results more accurate.

[0081] Based on the above embodiments, referring to Figure 4 This paper illustrates another display data processing method according to an embodiment of the present application, which optimizes some processes in the foregoing embodiments to further improve the accuracy of display data processing results.

[0082] The display data processing method in this embodiment includes the following steps:

[0083] Step S202: Based on the display data of the first display panel and the first initial compensation data, compensate the first display panel to obtain the first compensation data set and the identifiable differences of the first display panel before and after compensation.

[0084] The specific implementation of step S202 can be referred to the implementation of step S102 in the embodiment, and will not be repeated here.

[0085] In this embodiment, the first display panel exists on a single display substrate before being cut. For display substrates from the same production batch, a portion of the multiple cut display panels is randomly selected as a control group. For example, one-tenth of the multiple cut display panels is selected as the control group, serving as the quantitative basis for the remaining nine-tenths. After step S202, multiple first compensation data sets and identifiable differences between the multiple first display panels before and after compensation are obtained. It should be noted that the acquisition of the first compensation data sets and the identifiable differences between the first display panels before and after compensation can be implemented with reference to the description in the relevant part of Embodiment 1, and will not be repeated here. It should be noted that the above examples are for illustration only and are not intended to limit. In practical applications, the selection of the control group can be determined based on the number of display substrates and the number of cut display panels, etc., and this embodiment does not impose any limitations on this.

[0086] Step S204: Based on the identifiable differences and the first compensation data set, obtain a representative value of the unit compensation value for quantifying the degree of compensation.

[0087] In one feasible approach, the exponential compensation value of the first compensation data corresponding to each pixel in the first compensation data set is used to obtain a unit compensation value representative value for quantifying the degree of compensation.

[0088] In this first compensation data set, the exponent of the exponential compensation value corresponding to each pixel contains various preset values, such as 2, 4, and 6.

[0089] The steps for obtaining the unit compensation value can be referred to step S104 in Example 1, and will not be repeated here.

[0090] Based on the unit compensation value of each display panel in the control group, a representative unit compensation value is obtained. This representative unit compensation value represents the unit compensation value of all display panels in the control group, reflecting the average level of the unit compensation value for each display panel in the control group. In one feasible approach, the representative unit compensation value is obtained by calculating the average unit compensation value of each display panel in the control group. It should be noted that the above example is for illustrative purposes only and is not intended to limit the scope. In practical applications, the representative unit compensation value can also be obtained, for example, by taking the median of the unit compensation values ​​of all display panels in the control group; this application embodiment does not impose any limitations on this method.

[0091] Step S206: Based on the display data of the second display panel and the second initial compensation data, compensate the second display panel to obtain the second compensation data set.

[0092] To control variables, the second display panel uses a compensation method corresponding to that of the first display panel, such as an optical extraction-type external compensation method.

[0093] In one feasible approach, the first display panel and the second display panel belong to the same display substrate or different display substrates from the same production batch before being cut; wherein the first display panel and the second display panel are different parts after being cut from the same display substrate or different parts after being cut from different display substrates from the same production batch.

[0094] Step S208: Obtain the identifiable difference change value corresponding to the second display panel based on the representative value of the unit compensation value and the second compensation data set.

[0095] In one feasible approach, the exponential compensation value of the second compensation data corresponding to each pixel in the second compensation data set is used to obtain the identifiable difference change value corresponding to the second display panel.

[0096] In this embodiment, the exponential level of the exponential compensation value of the second compensation data corresponding to each pixel in the second compensation data set and the exponential compensation value of the first compensation data corresponding to each pixel in the first compensation data set are set to correspond. For example, if the exponential compensation value of the first compensation data corresponding to each pixel in the first compensation data set is the square of the first compensation data corresponding to each pixel, then the exponential compensation value of the second compensation data corresponding to each pixel in the second compensation data set is the square of the second compensation data corresponding to each pixel.

[0097] In this embodiment, the identifiable difference change value corresponding to the second display panel is obtained based on the ratio of the exponential compensation value to the representative value of the unit compensation value of the second compensation data corresponding to each pixel in the second compensation data set. In one feasible approach, the identifiable difference change value corresponding to the second display panel is obtained based on the ratio of the sum of the squared values ​​of the second compensation data corresponding to each pixel in the second compensation data set to the representative value of the unit compensation value. In this feasible approach, the representative value of the unit compensation value is obtained based on the sum of the squared values ​​of the first compensation data corresponding to each pixel in the first compensation data set.

[0098] Based on this, in one feasible solution, the display data processing method of this application embodiment further includes:

[0099] The compensation level of the second display panel is obtained based on the identifiable difference change value corresponding to the second display panel and a preset correspondence rule. The preset correspondence rule includes the correspondence rules between different identifiable difference change values ​​corresponding to the second display panel and different compensation levels. The implementation of the preset correspondence rule can be referred to the description in Embodiment 1, and will not be repeated here.

[0100] By using the solution of this application embodiment, based on obtaining multiple unit compensation values ​​in the control group, a more representative unit compensation value is obtained, making the result of quantifying the degree of compensation more accurate.

[0101] This application also provides a computer storage medium configured to store computer program instructions for performing the methods described in any of the foregoing method embodiments. The computer storage medium includes, but is not limited to, compact disc read-only memory (CD-ROM), random access memory (RAM), floppy disk, hard disk, or magneto-optical disk.

[0102] Please see Figure 5 As shown in the illustration, this application also provides a display device, including:

[0103] Display panel 502;

[0104] and the computer storage medium 504 in the above embodiments; and,

[0105] The processor 506 is configured to execute computer program instructions in the computer storage medium to perform operations corresponding to the methods described in any of the foregoing method embodiments, based on the display data of the display panel.

[0106] It should be noted that, depending on the implementation needs, the various components / steps described in the embodiments of this application can be broken down into more components / steps, or two or more components / steps or parts of the operation of components / steps can be combined into new components / steps to achieve the purpose of the embodiments of this application.

[0107] The methods described above according to the embodiments of this application can be implemented in hardware, firmware, or as software or computer code that can be stored in a recording medium (such as CD-ROM, RAM, floppy disk, hard disk, or magneto-optical disk), or as computer code originally stored in a remote recording medium or a non-transitory machine-readable medium and to be stored in a local recording medium, downloaded via a network. Thus, the methods described herein can be stored as software processing on a recording medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware (such as an application-specific integrated circuit (ASIC) or a field-programmable gate array (FPGA)). It is understood that the computer, processor, microprocessor controller, or programmable hardware includes storage components (e.g., random access memory (RAM), read-only memory (ROM), flash memory, etc.) capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods described herein. Furthermore, when a general-purpose computer accesses the code used to implement the methods shown herein, the execution of the code transforms the general-purpose computer into a dedicated computer for executing the methods shown herein.

[0108] Those skilled in the art will recognize that the units and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for specific applications, but such implementations should not be considered beyond the scope of the embodiments of this application.

[0109] The above embodiments are only used to illustrate the embodiments of this application, and are not intended to limit the embodiments of this application. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of this application. Therefore, all equivalent technical solutions also fall within the scope of the embodiments of this application, and the patent protection scope of the embodiments of this application should be defined by the claims.

Claims

1. A display data processing method, characterized by, The method comprises: compensating the first display panel based on display data of the first display panel and first initial compensation data, to obtain a first compensation data set and an identifiable difference of the first display panel before and after compensation; obtaining a unit compensation value for quantifying a compensation degree of the compensation based on the identifiable difference and the first compensation data set; compensating the second display panel based on display data of the second display panel and second initial compensation data, to obtain a second compensation data set; obtaining an identifiable difference change value corresponding to the second display panel based on the unit compensation value and the second compensation data set; The method comprises: obtaining a unit compensation value for quantifying a compensation degree of the compensation based on the identifiable difference and an exponential compensation value of the first compensation data corresponding to each pixel point in the first compensation data set.

2. The method of claim 1, wherein, The method comprises: obtaining a unit compensation value for quantifying a compensation degree of the compensation based on the identifiable difference and a square value of the first compensation data corresponding to each pixel point in the first compensation data set.

3. The method of claim 2, wherein, The method comprises: obtaining a unit compensation value for quantifying a compensation degree of the compensation based on the identifiable difference and a sum of square values of the first compensation data corresponding to each pixel point in the first compensation data set.

4. The method of claim 1, wherein, The method comprises: obtaining an identifiable difference change value corresponding to the second display panel based on the unit compensation value and an exponential compensation value of the second compensation data corresponding to each pixel point in the second compensation data set.

5. The method of claim 4, wherein, The method comprises: obtaining an identifiable difference change value corresponding to the second display panel based on a ratio of a sum of square values of the second compensation data corresponding to each pixel point in the second compensation data set to the unit compensation value.

6. The method of claim 1, wherein, The method further comprises: obtaining a compensation degree of the second display panel based on the identifiable difference change value corresponding to the second display panel and a preset corresponding rule, wherein the preset corresponding rule comprises a corresponding rule between different identifiable difference change values corresponding to the second display panel and different compensation degrees.

7. The method of claim 6, wherein, The preset corresponding rule is used to indicate a proportional relationship between different identifiable difference change values corresponding to the second display panel and different compensation degrees.

8. The method of claim 1, wherein, The display data is luminance data and / or chrominance data.

9. A display data processing method, characterized by, Comprising: Compensating the first display panel based on display data of the first display panel and first initial compensation data, to obtain a first compensation data set and an identifiable difference of the first display panel before and after compensation; Based on the identifiable difference and the first compensation data set, obtaining a unit compensation value representative value for quantifying a compensation degree of the compensation; Compensating the second display panel based on display data of the second display panel and second initial compensation data, to obtain a second compensation data set; According to the unit compensation value representative value and the second compensation data set, obtaining an identifiable difference change value corresponding to the second display panel; The unit compensation value representative value for quantifying a compensation degree of the compensation based on the identifiable difference and the first compensation data set, comprises: Based on the identifiable difference and an exponential compensation value of the first compensation data corresponding to each pixel point in the first compensation data set, obtaining a unit compensation value representative value for quantifying a compensation degree of the compensation.

10. A computer storage medium configured to store computer program instructions for executing a display data processing method according to any one of claims 1 to 9.

11. A display device comprising: The display device comprises: A display panel; And the computer storage medium of claim 10; and A processor configured to execute computer program instructions in the computer storage medium to perform operations corresponding to the display data processing method according to any one of claims 1 to 9 based on display data of the display panel.

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