Compensation data generation method and system, display panel and compensation method thereof

Abstract

The application provides a compensation data generation method and system, a display panel and a compensation method thereof. The compensation data generation method is applied to a display panel. A display area of the display panel includes a first area with a smaller size and a second area with a larger size. The method includes: obtaining standard optical information of the display panel corresponding to a standard picture, and first actual optical information of the first area corresponding to the standard picture; generating corresponding first compensation data according to a first compensation rule, the standard optical information and the first actual optical information; obtaining second actual optical information of the second area corresponding to the standard picture after the display panel is compensated by the first compensation data; and generating corresponding second compensation data according to a second compensation rule, the standard optical information and the second actual optical information. The accuracy of the second compensation rule is less than that of the first compensation rule, so that the color accuracy and the brightness and color uniformity of the display panel are improved, and a large memory is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to the manufacturing of display device, and specifically to a compensation data generation method and system, a display panel and a compensation method thereof. BACKGROUND

[0002] With the continuous development and popularization of display, the requirements for display color in various industries are also getting higher and higher. Color accuracy can be used as a basis for judging color accuracy to quantify whether the display correctly presents the color.

[0003] However, display pictures with high color requirements often need to work across multiple displays. Even the same display will be affected by differences in panel process, etc., resulting in inconsistent color and color accuracy of the final presented picture, and thus color distortion.

[0004] Therefore, the existing LCD products have the above problems, and need to be improved. SUMMARY

[0005] The present application aims to provide a compensation data generation method and system, a display panel and a compensation method thereof to improve the technical problem of color distortion in existing LCD products.

[0006] The present application provides a compensation data generation method applied to a display panel, the display panel comprising a display area, the display area comprising a first region and a second region, the size of the first region being smaller than the size of the second region, the compensation data generation method comprising:

[0007] obtaining standard optical information of the display panel corresponding to a standard picture, and first actual optical information of the first region corresponding to the standard picture;

[0008] generating corresponding first compensation data according to a first compensation rule, the standard optical information and the first actual optical information;

[0009] compensating the display panel according to the first compensation data, and obtaining second actual optical information of the second region corresponding to the standard picture in the compensated display panel;

[0010] generating corresponding second compensation data according to a second compensation rule, the standard optical information and the second actual optical information, the compensation accuracy of the second compensation rule being less than that of the first compensation rule.

[0011] In some embodiments, the first region is a central region of the display area, and the second region is arranged around the central region.

[0012] In some embodiments, the number of the standard pictures is greater than 1, and the step of generating the first compensation data according to the first compensation rule, the standard optical information and the first actual optical information comprises:

[0013] According to the first compensation rule, the standard optical information corresponding to the plurality of standard pictures and the first actual optical information corresponding to the first region, a plurality of compensation coordinates corresponding to the plurality of standard pictures are generated, each of the compensation coordinates comprises a plurality of first compensation elements, and the plurality of compensation coordinates constitute the first compensation data.

[0014] According to the second compensation rule, the standard optical information and the second actual optical information, a second compensation data corresponding to the second compensation rule is generated, wherein the step of generating the second compensation data comprises:

[0015] Some of the standard pictures are selected as reference standard pictures.

[0016] According to the second compensation rule, the standard optical information corresponding to the plurality of reference standard pictures and the second actual optical information corresponding to the second region, a compensation matrix corresponding to the second compensation rule is generated, the compensation matrix comprises a plurality of second compensation elements, the compensation matrix constitutes the second compensation data, and the total number of the second compensation elements corresponding to the plurality of standard pictures is less than the total number of the first compensation elements corresponding to the plurality of standard pictures.

[0017] In some embodiments, the step of generating a corresponding compensation coordinate according to the first compensation rule, the standard optical information corresponding to each of the standard pictures and the first actual optical information corresponding to the first region comprises:

[0018] According to the standard optical information and the position information of the first region in the display area, the first standard optical information corresponding to the first region is determined.

[0019] According to the first compensation rule, the first standard optical information corresponding to each of the standard pictures and the first actual optical information corresponding to each of the standard pictures, a transition compensation coordinate is generated.

[0020] According to the transition compensation coordinate, the first region is compensated, and third actual optical information corresponding to the standard picture of the compensated first region is obtained.

[0021] A first difference value between the third actual optical information and the first standard optical information is calculated, and when the absolute value of the first difference value is less than a first error threshold, the transition compensation coordinate is determined as the compensation coordinate of the first region.

[0022] In some embodiments, the step of generating a corresponding compensation matrix according to the second compensation rule, the plurality of reference standard pictures, the plurality of standard optical information corresponding to the plurality of reference standard pictures, and the plurality of second actual optical information corresponding to the second region comprises:

[0023] determining second standard optical information corresponding to the second region according to the standard optical information and position information of the second region in the display area;

[0024] generating a transition compensation matrix according to the second compensation rule, the plurality of second standard optical information corresponding to the plurality of reference standard pictures, and the plurality of corresponding second actual optical information;

[0025] compensating the second region according to the transition compensation matrix, and obtaining fourth actual optical information corresponding to the standard picture of the second region after compensation;

[0026] calculating a second difference value between the fourth actual optical information and the second standard optical information, and determining that the transition compensation matrix is the compensation matrix when an absolute value of the second difference value is less than a second error threshold.

[0027] In some embodiments, the second region comprises a plurality of unit regions, the second compensation data comprises a plurality of second sub-compensation data corresponding to the plurality of unit regions respectively, the second actual optical information comprises a plurality of second sub-actual optical information corresponding to the plurality of unit regions respectively, and the second standard optical information comprises a plurality of second sub-standard optical information corresponding to the plurality of unit regions respectively. Each of the second sub-compensation data is determined according to the second compensation rule, the second sub-standard optical information corresponding to the unit region, and the second sub-actual optical information corresponding to the unit region.

[0028] In some embodiments, the step of obtaining the first actual optical information corresponding to the standard picture of the display panel comprises:

[0029] obtaining initial display data corresponding to the standard picture;

[0030] obtaining optical information of a picture displayed by the first region under control of the initial display data as the first actual optical information;

[0031] The step of obtaining the second actual optical information corresponding to the standard picture of the display panel after compensation of the display panel by the first compensation data comprises:

[0032] determining corresponding transition display data according to the initial display data and the first compensation data;

[0033] Obtaining optical information of the second area displaying a picture under control of the transition display data as the second actual optical information.

[0034] The application further provides a compensation method of a display panel, applied to a display panel, the display panel comprising a display area, the display area comprising a first area and a second area, the size of the first area being smaller than the size of the second area, the compensation method comprising:

[0035] Obtaining initial display data of a picture to be displayed, the initial display data comprising first initial display data corresponding to the first area and second initial display data corresponding to the second area;

[0036] Obtaining second compensation data corresponding to the second area, and compensating the second initial display data according to the second compensation data to generate intermediate display data corresponding to the second area;

[0037] Obtaining first compensation data corresponding to the display area, and respectively compensating the first initial display data and the intermediate display data according to the first compensation data to respectively generate first display data and second display data, the compensation precision of the second compensation data being smaller than the compensation precision of the first compensation data.

[0038] In some embodiments, after the step of respectively generating the first display data and the second display data, the compensation method further comprises:

[0039] Generating data voltages of each pixel according to the first display data and the second display data;

[0040] Driving a plurality of pixels to display according to a plurality of the data voltages.

[0041] The application further provides a display panel, comprising:

[0042] A panel body;

[0043] A memory, configured to store the first compensation data, the second compensation data and the brightness compensation method of the display panel according to any one of the above;

[0044] A controller, configured to call the first compensation data, the second compensation data and execute the brightness compensation method of the display panel.

[0045] The application further provides a compensation data generation system, applied to a display panel, the display panel comprising a display area, the display area comprising a first area and a second area, the size of the first area being smaller than the size of the second area, the compensation data generation system comprising:

[0046] an optical instrument for acquiring first actual optical information corresponding to the first area of the standard picture;

[0047] a computer for acquiring standard optical information corresponding to the standard picture of the display panel;

[0048] The computer is further configured to generate corresponding first compensation data according to the first compensation rule, the standard optical information and the first actual optical information.

[0049] The computer is further configured to compensate the display panel according to the first compensation data.

[0050] The optical instrument is further configured to acquire second actual optical information corresponding to the standard picture of the second area of the compensated display panel.

[0051] The computer is further configured to generate corresponding second compensation data according to a second compensation rule, the standard optical information and the second actual optical information, wherein the compensation accuracy of the second compensation rule is less than that of the first compensation rule.

[0052] The computer is further configured to generate a compensation file applied to the display panel according to the first compensation data and the second compensation data.

[0053] The present application provides a compensation data generation method and system, a display panel and a compensation method thereof. The method is based on a first area with a smaller size and a second area with a larger size. First compensation data for compensating the first area is generated according to a first compensation rule with higher accuracy. After the second area is compensated by the first compensation data, second compensation data for compensating the second area is generated according to a second compensation rule with lower accuracy. The data volume of the compensation data of the whole display area is effectively reduced, the color difference between the display picture and the standard picture is compensated, and the uniformity of the overall brightness and chroma of the display picture is improved. BRIEF DESCRIPTION OF DRAWINGS

[0054] The present application will be further described below with reference to the drawings. It should be noted that the drawings in the following description are only used to explain some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0055] Figure 1 、 Figures 3 to 7 The six flowcharts of the compensation data generation method provided by the embodiments of the present application are shown in FIGS. 1-6, respectively.

[0056] Figure 2 The application scenario of the compensation data generation system provided by the embodiments of the present application is shown in FIG. 7.

[0057] Figure 8 and Figure 9 are two flowcharts of compensation methods of display panels provided by embodiments of the present application, respectively.

[0058] Figure 10 is an architecture diagram of a display panel provided by an embodiment of the present application. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0060] In the description of the present application, the terms "first", "second", and the like are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In addition, it should be noted that the drawings provided are only structures closely related to the present application, and some details not closely related to the application are omitted, the purpose is to simplify the drawings, make the invention points clear at a glance, and not to indicate that the actual device is exactly the same as the drawings, and is not set as a limitation on the actual device. Figure 1

[0061] In this document, the reference to "embodiments" means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive or alternative to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0062] The present application provides a compensation data generation method, which is applied to a display panel, and the method can include but is not limited to the following embodiments and combinations of the following embodiments.

[0063] In some embodiments, as shown in Figure 1 the compensation data generation method can include but is not limited to the following steps and combinations of the following steps.

[0064] S1, obtaining standard optical information of a display panel corresponding to a standard picture, and first actual optical information of a first region corresponding to the standard picture.

[0065] ​The display panel in the embodiment can be a liquid crystal display panel or a self-luminous display panel. Figure 2 As shown in FIG. 1, the display panel 100 includes a display area, which includes a first area 10 and a second area 20, and the size of the first area 10 is smaller than the size of the second area 20. The display area can be understood as an area in the display panel for displaying a picture, and a plurality of pixels can be arranged in the area, and the plurality of pixels emit light under the control of corresponding data voltages to make the display area present the display picture. The specific positions of the first area 10 and the second area 20 are not limited here, and either of them can be arranged close to or away from the center of the display area. Here, it is only required that the size of the first area 10 is smaller than the size of the second area 20, and the number relationship of the pixels in the two areas is not limited. If the plurality of pixels can be uniformly distributed in the display area, it can be considered that the number of pixels in the first area 10 is less than the number of pixels in the second area 20. Of course, for other distribution modes of the pixels, the number of pixels in the first area 10 can also be more than or equal to the number of pixels in the second area 20.

[0066] Specifically, the above-mentioned pixel can be understood as a pixel unit or a sub-pixel, and the pixel unit can include a plurality of sub-pixels of different colors. In the present application, only the case that each pixel unit includes a red sub-pixel, a green sub-pixel and a blue sub-pixel is taken as an example for illustration. The value range of the gray scale value of each color sub-pixel can be the same, and each color sub-pixel can have a corresponding data voltage at each gray scale value. Considering the characteristic differences of sub-pixels of different colors, the data voltages of sub-pixels of different colors at the same gray scale value can be the same or different. The display panel can drive each sub-pixel to emit light based on the gray scale value of each sub-pixel using the corresponding data voltage. For example, the gray scale value of each sub-pixel can take any value between 0 and 255, and there can also be 256 data voltages corresponding thereto. The display panel can store a mapping relationship between the gray scale value and the data voltage of each color sub-pixel.

[0067] The standard picture can be understood as a pure color picture, that is, the gray scale values of the sub-pixels of the same color in different pixel units are the same. For example, the gray scale values of the red sub-pixels in each pixel unit can all be R, the gray scale values of the green sub-pixels can all be G, and the gray scale values of the blue sub-pixels can all be B. The standard picture can have a corresponding set of R, G and B.

[0068] The number of the standard pictures is greater than 1, and each of the standard pictures has corresponding standard optical information. In combination with the above description, each standard picture has a corresponding set of R, G and B, a plurality of red sub-pixels emit light under the control of the data voltage corresponding to R, a plurality of green sub-pixels emit light under the control of the data voltage corresponding to G, and a plurality of blue sub-pixels emit light under the control of the data voltage corresponding to B, so as to present the standard picture. The standard optical information can be understood as the optical information that the display area should theoretically have at this time.

[0069] Specifically, the optical information in the present application can include the total brightness value of the corresponding area and the total brightness value of the sub-pixel of each color. For example Figure 2 As shown, the display area can be divided into nine areas A, B, C, D, E, F, G, H and I with similar or equal sizes, and the standard optical information herein can include the total brightness value of the nine areas, the brightness value of each of the nine areas, the brightness value X of all red sub-pixels, the brightness value Y of all green sub-pixels and the brightness value Z of all blue sub-pixels of the nine areas, and the brightness value X of all red sub-pixels, the brightness value Y of all green sub-pixels and the brightness value Z of all blue sub-pixels in each of the nine areas. The "brightness value" in this sentence represents the theoretical brightness value of the object under the standard picture.

[0070] Specifically, as Figure 3 As shown, the step S1 of obtaining the first actual optical information corresponding to the standard picture of the display panel can include, but is not limited to, the following steps and combinations of the following steps.

[0071] S11, obtaining initial display data corresponding to the standard picture.

[0072] The initial display data can include the gray scale value of each sub-pixel in each pixel unit in the display area, or the gray scale value of each sub-pixel in each pixel unit can be determined according to the initial display data. As described above, the gray scale values of the sub-pixels of the same color in different pixel units under the standard picture are the same, that is, the initial display data can be used to determine at least the gray scale value R of all red sub-pixels, the gray scale value G of all green sub-pixels and the gray scale value B of all blue sub-pixels under the standard picture.

[0073] S12, obtaining the optical information of the display picture of the first area under the control of the initial display data as the first actual optical information.

[0074] Similarly, based on the existence of a plurality of standard pictures, the first area 10 has corresponding first actual optical information corresponding to each of the standard pictures, that is, the first area 10 has corresponding first actual optical information under each standard picture.

[0075] According to the above discussion, the initial display data corresponding to each standard picture can be used to determine the corresponding set of R, G, B, and then determine the three data voltages corresponding to the standard picture. Further, the three data voltages can be used to drive the multiple pixel units of the display area to emit light, and the optical information of the first area 10 measured at this time can be used as the first actual optical information. As discussed above, the first actual optical information can include the total brightness value of the first area 10, the brightness value X of all red sub-pixels in the first area 10, the brightness value Y of all green sub-pixels, and the brightness value Z of all blue sub-pixels. The "brightness value" in this sentence refers to the actual brightness value of the object under the standard picture.

[0076] As shown in step S1, Figure 1 , step S2 is further included.

[0077] S2, according to the first compensation rule, the standard optical information and the first actual optical information, a corresponding first compensation data is generated.

[0078] According to the above discussion, the standard optical information can include the brightness value of each color sub-pixel in each area divided in the display area. For example, the first area 10 can be any one or more of the nine areas in Figure 2 , that is, the standard optical information of the first area 10 (referred to as the first standard optical information) can be determined according to the standard optical information. Further, according to the theoretical optical information (i.e. the first standard optical information) and the actual optical information (i.e. the first actual optical information) of the first area 10, the first compensation data corresponding to the first area 10 can be generated.

[0079] Specifically, as shown in Figure 4 , the number of standard pictures is greater than 1, and the step S2 can include but is not limited to the following steps and combinations of the following steps.

[0080] S21, according to the first compensation rule, a plurality of standard optical information corresponding to a plurality of standard pictures of the display panel, a plurality of first actual optical information corresponding to the first area, a plurality of compensation coordinates corresponding to a plurality of standard pictures are generated, each compensation coordinate includes a plurality of first compensation elements, and a plurality of compensation coordinates constitute the first compensation data.

[0081] According to the above discussion, under each standard picture, the first area 10 has theoretical optical information (i.e. the first standard optical information) and actual optical information (i.e. the first actual optical information), so a plurality of first compensation data corresponding to a plurality of standard pictures of the first area 10 can be generated.

[0082] Based on the fact that each pixel unit includes a red sub-pixel, a green sub-pixel and a blue sub-pixel, the number of the first compensation elements in the compensation coordinates can also be 3, that is, the number of the first compensation elements in the compensation coordinates is equal to the number of the sub-pixels in the pixel unit, and each first compensation element can represent the compensation degree of the sub-pixel of the corresponding color in the first region 10. Further, the plurality of standard pictures correspond to a plurality of compensation coordinates in total to constitute the first compensation data.

[0083] Further, as shown in Figure 5 , the step S21 can include but is not limited to the following steps and combinations of the following steps.

[0084] S211, determining the first standard optical information corresponding to the first region according to the standard optical information and the position information of the first region in the display area.

[0085] The standard optical information can include the position information of each region (for example, 9 regions in Figure 2 , and the theoretical brightness value of the region under the standard picture, so the first standard optical information corresponding to the first region 10 can be determined from the standard optical information according to the position information of the first region 10 in the display area.

[0086] S212, generating transition compensation coordinates according to the first compensation rule, the first standard optical information corresponding to each of the standard pictures, and the corresponding first actual optical information.

[0087] As discussed above, each standard picture has a corresponding set of R, G and B, and the current transition compensation coordinates can be generated according to the current first actual optical information and the fixed first standard optical information corresponding to the first region 10. Similarly, the transition compensation coordinates (△R, △G, △B) can also include three first transition compensation elements △R, △G and △B corresponding to the three color sub-pixels respectively, wherein the first compensation rule can depend on but is not limited to 3D LUT (3D Look-Up Table, three-dimensional lookup table), and the above process of generating transition compensation coordinates can be understood as follows.

[0088] The first standard optical information is taken as a target, and the first actual optical information presented by controlling the display region to emit light according to the initial display data (used to determine a corresponding set of R, G, B) is taken as a starting point. The difference between the real-time color of the first region 10 and the color of the first region 10 in the standard picture is observed by the human eye in real time, and / or the difference between the real-time color of the first region 10 (i.e., the brightness values of the three color sub-pixels in real time, included in the third actual optical information described above) and the theoretical color of the first region 10 in the standard picture (i.e., the brightness values of the three color sub-pixels in theory, included in the first standard optical information described above) is measured by an optical instrument. The initial display data is continuously adjusted (each adjusted initial display data can correspond to the current three first transition compensation elements) until the two colors are consistent, and the current transition compensation coordinates are recorded.

[0089] Similarly, each standard picture can obtain at least one corresponding transition compensation coordinate through the above process.

[0090] S213, compensating the first region according to the transition compensation coordinates, and obtaining third actual optical information corresponding to the standard picture of the compensated first region.

[0091] S214, calculating a first difference value between the third actual optical information and the first standard optical information, and determining that the transition compensation coordinates are the compensation coordinates of the first region when the absolute value of the first difference value is less than a first error threshold.

[0092] Further, for the determination of the compensation coordinates, there can be two understandings as follows:

[0093] (1) If the difference between the real-time color (corresponding to the third actual optical information) and the theoretical color (corresponding to the first actual optical information) of the first region 10 corresponding to any standard picture is large, that is, it is considered that the transition compensation coordinates of the standard picture at this time do not meet the requirements, then the current transition compensation coordinates of the standard picture need to be continuously adjusted to obtain the next transition compensation coordinates, and so on, until the difference between the current third actual optical information of the first region 10 and the first standard optical information is small, that is, the absolute value of the difference value (the first difference value) between the two is less than the first error threshold. In terms of color difference, it can be understood that the color difference between the picture corresponding to the first standard optical information and the picture corresponding to the third actual optical information of the first region 10 is less than the first error threshold (which can be equal to 2). At this time, the current transition compensation coordinates can be set as the compensation coordinates corresponding to the standard picture;

[0094] (2) If the difference between the average value of the real-time color of the first area 10 corresponding to all the standard pictures (corresponding to the third actual optical information) and the theoretical color (corresponding to the first actual optical information) is large, it is considered that the current 3D LUT composed of a plurality of transition compensation coordinates generated based on all the standard pictures does not meet the requirements, and at this time, it is necessary to continue to adjust the transition compensation coordinates of each standard picture to obtain the next transition compensation coordinates, and so on, until the difference (the first difference value) between the current third actual optical information of the first area 10 and the first standard optical information is small, that is, the absolute value of the difference between the two is less than the first error threshold value. In terms of color difference, it can be understood that under each standard picture, the picture corresponding to the first standard optical information and the picture corresponding to the third actual optical information have corresponding color differences. If the average value of the color differences corresponding to a plurality of standard pictures is less than the first error threshold value (which can be equal to 2), the current plurality of transition compensation coordinates can be set as the compensation coordinates corresponding to the plurality of standard pictures.

[0095] Wherein, the color difference can be calculated according to CIEDE2000 color difference formula, which involves two pictures L (total brightness value of the picture, L=0 represents black, L=100 represents white), a (position of the picture between red and green, a<0 represents deviation to green, a>0 represents deviation to red), b (position of the picture between yellow and blue, b<0 represents deviation to blue, b>0 represents deviation to yellow), L, a, b can be directly measured by optical instruments, or can be calculated according to X, Y, Z of each picture measured by optical instruments.

[0096] According to the above description of "determining a corresponding set of R, G, B according to the initial display data corresponding to each standard picture", "transition compensation coordinates (△R, △G, △B) can also include three first transition compensation elements △R, △G, △B corresponding to three color sub-pixels", if the difference between the real-time color and the theoretical color of the first area 10 corresponding to one standard picture is small, it is considered that the transition compensation coordinates of the standard picture at this time meet the requirements, and the transition compensation coordinates at this time can be used as the compensation coordinates of the standard picture, that is, the three first compensation elements in the compensation coordinates (△R, △G, △B) are the current three first transition compensation elements △R, △G, △B.

[0097] Step S2, as shown in Figure 1 Step S3 is further included.

[0098] S3, compensating the display panel according to the first compensation data, and obtaining the second actual optical information of the second area corresponding to the standard picture in the compensated display panel.

[0099] As discussed above, the first compensation data suitable for compensating the first area 10 can be obtained through the step S2, and the first compensation data includes a plurality of compensation coordinates corresponding to a plurality of standard pictures, each compensation coordinate further includes a plurality of (for example, 3) first compensation elements corresponding to a plurality of (for example, 3) sub-pixels of different colors, that is, the number of first compensation elements in the first compensation data is equal to (the number of standard pictures)*(the number of first compensation elements in the compensation coordinates).

[0100] For the convenience of description, it is defined here that, under each standard picture, the picture in which the first area 10 emits light to present the first standard optical information is a first sub-standard picture, and the picture in which the first area 10 emits light to present the first actual optical information is a first sub-actual picture, so it can be considered that the first compensation data can compensate for the difference between the first sub-actual picture and the first sub-standard picture.

[0101] Further, the step S3 superimposes the first compensation data on the initial display data, and drives the second area 20 to emit light with the display data at this time, and the optical information of the second actual picture after the second area 20 emits light is called the second actual optical information. Similarly, based on the existence of a plurality of standard pictures, the second area 20 has corresponding second actual optical information corresponding to each of the standard pictures, that is, the second area 20 has corresponding second actual optical information under each standard picture. Similarly, the standard optical information of the first area 10 (referred to as second standard optical information) can be determined according to the standard optical information.

[0102] As shown in step S12, the step S3 of obtaining the second actual optical information corresponding to the standard picture of the display panel after compensation by the first compensation data can include, but not limited to, the following steps and combinations of the following steps. Figure 3

[0103] S31, determining corresponding transition display data according to the initial display data and the first compensation data.

[0104] As discussed above, the first compensation data is suitable for compensating the first area 10, and the transition display data can be understood as including the current display data of the entire display area after compensation by the first compensation data. The current display data of the display area can be determined according to the transition display data, so as to determine the gray scale value of each color sub-pixel.

[0105] S32, obtaining the optical information of the picture displayed by the second area under the control of the transition display data as the second actual optical information.

[0106] ​Similarly, according to the transition display data corresponding to each standard picture, a corresponding new set of R', G', B' can be determined, and R', G', B' can be equal to R+△R, G+△G, B+△B respectively, and then three data voltages corresponding to the standard picture can be determined; further, the three data voltages can be used to drive a plurality of pixel units of the display area to emit light, and the optical information of the second area 20 measured at this time can be used as the second actual optical information. As discussed above, the second actual optical information can include the total brightness value of the second area 20, the new brightness value X' of all red sub-pixels in the second area 20, the brightness value Y' of all green sub-pixels, and the brightness value Z' of all blue sub-pixels. The "brightness value" in this sentence refers to the actual brightness value of the object under the standard picture.

[0107] As shown in the receiving step S1, Figure 1 the method further includes a step S4.

[0108] S4, generating corresponding second compensation data according to the second compensation rule, the standard optical information and the second actual optical information, the compensation accuracy of the second compensation rule being less than the compensation accuracy of the first compensation rule.

[0109] As discussed above, the second area 20 can be any one or more of the above-mentioned nine areas, that is, the standard optical information of the first area 10 (referred to as second standard optical information) can be determined according to the standard optical information; further, according to the theoretical optical information of the first area 10 (i.e. the second standard optical information) and the actual optical information (i.e. the second actual optical information), the second compensation data corresponding to the second area 20 can be generated.

[0110] As shown in the receiving step S21, Figure 4 the step S4 can include but is not limited to the following steps and combinations of the following steps.

[0111] S41, selecting part of the standard pictures as reference standard pictures.

[0112] The number of reference standard pictures can be less than the number of standard pictures, and the selection criteria for standard pictures are not limited here. Further, the selected plurality of reference standard pictures can satisfy at least one of the following: the corresponding plurality of R can be uniformly arranged, the corresponding plurality of G can be uniformly arranged, and the corresponding plurality of B can be uniformly arranged.

[0113] S42, generating a corresponding compensation matrix according to the second compensation rule, the plurality of the reference standard pictures respectively corresponding to the plurality of the standard optical information of the display panel, and the plurality of the second actual optical information respectively corresponding to the second area, the compensation matrix comprising a plurality of second compensation elements, the compensation matrix constituting the second compensation data, and the total number of the second compensation elements corresponding to the plurality of the standard pictures being less than the total number of the first compensation elements corresponding to the plurality of the standard pictures.

[0114] As can be seen from the above description, due to the position difference between the second area 20 and the first area 10, under each standard picture, the second area 20 has theoretical optical information (i.e., the second standard optical information) and actual optical information (i.e., the second actual optical information) on the basis of compensation of the first compensation data to the second area 20, and the plurality of the second compensation data corresponding to the plurality of the standard pictures can be generated according to the two.

[0115] Based on the fact that each pixel unit comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel, the number of the second compensation elements in the compensation matrix can be 9, that is, the number of the first compensation elements in the compensation coordinate is equal to the number of the sub-pixels in the pixel unit, and the entire compensation matrix can represent the compensation degree of the pixel unit in the second area 20, and the essence of the second compensation data is the compensation matrix.

[0116] Here, the red sub-pixel can have a corresponding red stimulus value X, the green sub-pixel can have a corresponding green stimulus value Y, and the blue sub-pixel can have a corresponding blue stimulus value Z. Correspondingly, the compensation matrix M here can comprise 9 second compensation elements m1 to m9 arranged in 3*3, and X, Y, Z, R’, G’, B’ and the compensation matrix M can satisfy the following relationship:

[0117] [X Y Z]’=M*[R’G’B’]’;

[0118] Here, the expression form of the compensation matrix M can be as follows:

[0119]

[0120] As can be seen from the above description, for each standard picture, the corresponding X, Y, Z, R’, G’, B’ can be obtained, and the relationship of “[X Y Z]’=M*[R’G’B’]’” can be listed as 3 equations. Considering that the number of the second compensation elements is 9, only 3 standard pictures (i.e., the total number of the standard pictures is greater than 3) corresponding to X, Y, Z, R’, G’, B’ are needed to be obtained, so that the 9 equations can be calculated, and m1 to m9 can be determined, so as to determine the compensation matrix M as the second compensation data.

[0121] Furthermore, such as Figure 6 As shown, step S42 may include, but is not limited to, the following steps and combinations thereof.

[0122] S421, based on the standard optical information and the position information of the second region in the display area, determine the second standard optical information corresponding to the second region.

[0123] Similarly, standard optical information can include multiple regions (e.g.) Figure 2 The second region 20 can be at least one of the nine regions in the display area. The position information of each region in the second region 20 and the theoretical brightness value of the region under the standard screen can be used to determine the corresponding second standard optical information from the standard optical information based on the position information of the second region 20 in the display area.

[0124] S422, a transition compensation matrix is ​​generated based on the second compensation rule, the multiple second standard optical information corresponding to the multiple reference standard images, and the multiple second actual optical information.

[0125] Based on the above discussion, after step S31, transition display data (used to determine a new set of R', G', B') can be obtained. After step S32, the second actual optical information can be obtained. The transition compensation matrix can also include nine second transition compensation elements corresponding to the three color sub-pixels. The second compensation rule can depend on, but is not limited to, a 3*3 matrix. The process of generating the transition compensation matrix can be understood as follows:

[0126] Taking the pre-acquired second standard optical information as the target, and the second actual optical information presented by controlling the light emission of the display area according to the transition display data as the starting point, the difference between the real-time color of the first area 10 and the theoretical color of the first area 10 in the standard picture is compared by human eye observation or optical instruments. The initial transition display data is continuously adjusted (each adjusted transition display data can correspond to the above 9 second transition compensation elements) until the two colors are consistent, and the current transition compensation matrix is ​​recorded.

[0127] Similarly, each standard frame can be processed through the above process to obtain at least one corresponding transition compensation matrix.

[0128] S423, the second region is compensated according to the transition compensation matrix, and the fourth actual optical information of the compensated second region corresponding to the standard image is obtained.

[0129] S424, calculate the second difference between the fourth actual optical information and the second standard optical information, and determine the transition compensation matrix as the compensation matrix when the absolute value of the second difference is less than the second error threshold.

[0130] Further, for the determination of the compensation matrix, reference can be made to the two understandings of the determination of the compensation coordinates above:

[0131] (1) If the difference between the real-time color of the second area 20 corresponding to any standard picture (corresponding to the fourth actual optical information) and the theoretical color (corresponding to the second actual optical information) is large, the transition compensation matrix of the standard picture can be adjusted to obtain the next transition compensation matrix, and so on. Corresponding to the color difference level, the color difference between the second area 20 corresponding to the second standard optical information and the picture corresponding to the fourth actual optical information is less than the second error threshold (which can be equal to 2), and the current transition compensation matrix can be set as the compensation matrix corresponding to the standard picture;

[0132] (2) If the difference between the average of the real-time color of the second area 20 corresponding to all standard pictures (corresponding to the fourth actual optical information) and the theoretical color (corresponding to the second actual optical information) is large, it is considered that the compensation matrix generated based on all standard pictures this time does not meet the requirements, and the transition compensation matrix of the standard picture can be adjusted to obtain the next transition compensation matrix, and so on. Corresponding to the color difference level, if the average of the color differences corresponding to multiple standard pictures is less than the second error threshold (which can be equal to 2), the current transition compensation matrix can be set as the compensation matrix corresponding to the multiple standard pictures.

[0133] As discussed above, the second compensation data suitable for compensating the second area 20 can be obtained through step S4, and the first compensation data includes one compensation matrix corresponding to multiple standard pictures. Each compensation matrix only includes 9 second compensation elements corresponding to multiple (for example, 3) sub-pixels with different colors, that is, the number of second compensation elements in the second compensation data is equal to 9, which is much smaller than the number of first compensation elements in the first compensation data, so it is called "the precision of the second compensation rule is less than the precision of the first compensation rule".

[0134] It can be understood that the size of the first region 10 is smaller than the size of the second region 20, and the accuracy of the first compensation rule used to compensate the first region 10 is set to be larger, and the accuracy of the first compensation rule used to compensate the second region 20 is set to be smaller. Since the size of the second region 20 is larger, and the measurable area of the probe of the optical instrument is smaller, and the size of the first region 10 is equal to the size of the measurable area of the probe, the second region 20 is divided into a plurality of unit regions (the size of each unit region is equal to the size of the measurable area of the probe) as an example. Therefore, the optical instrument can determine the first compensation data corresponding to the first region 10, and the number of unit regions in the second region 20 is larger. Therefore, the second sub-compensation data of each unit region in the second region 20 is determined based on the second compensation rule, the data amount of the second compensation data corresponding to the plurality of unit regions is smaller, the data amount of the second compensation data of the entire second region 20 can be avoided to be too large, the data amount of the compensation data of the entire display area is effectively reduced, and the color difference between the display image and the standard image is compensated, and the uniformity of the overall brightness of the display image is improved.

[0135] In combination with the above description, the second region includes a plurality of unit regions, the second compensation data includes a plurality of second sub-compensation data corresponding to the plurality of unit regions respectively, the second actual optical information includes a plurality of second sub-actual optical information corresponding to the plurality of unit regions respectively, the second standard optical information includes a plurality of second sub-standard optical information corresponding to the plurality of unit regions respectively, and each second sub-compensation data is determined based on the second compensation rule and according to corresponding second sub-standard optical information and corresponding second sub-actual optical information.

[0136] Specifically, the second sub-compensation data corresponding to the second sub-standard optical information and the second sub-actual optical information is generated based on the second compensation rule. The generation manner of the second sub-compensation data can refer to the description of the steps S4, S41-S42, S421-S422, that is, the second sub-compensation data of each unit region in the second compensation data is generated in the above manner, and the essence of each second sub-compensation data can be a corresponding sub-compensation matrix. The generation manner of the sub-compensation matrix can refer to the description of the steps S41-S42, S421-S422. Therefore, each unit region in the second region has a corresponding sub-compensation matrix.

[0137] In some embodiments, the first region 10 is a central region of the display area, and the second region 20 is arranged around the central region. For example Figure 2As shown, the first region 10 can be region E, and the second region 20 can include regions A, B, C, D, F, G, H, and I, each of which can be understood as a unit region as described above. In combination with the above discussion, the first compensation data can be considered to compensate for the luminance difference between the display area and the standard picture, and the second compensation data can be used to compensate for the luminance difference between the peripheral area (regions A, B, C, D, F, G, H, and I) and the central area (region E).

[0138] To better illustrate the above steps S1-S4, the present application also provides a compensation data generation system applied to a display panel, which includes a display area, the display area including a first region and a second region, the size of the first region being smaller than the size of the second region, as Figure 2 As shown, the compensation data generation system includes an optical instrument 300 for obtaining first actual optical information corresponding to the standard picture of the first region 10, and a computer 200 for obtaining standard optical information corresponding to the standard picture of the display panel 100. The computer 200 is further configured to generate corresponding first compensation data according to the first compensation rule, the standard optical information, and the first actual optical information. The computer 200 is further configured to compensate the display panel 100 according to the first compensation data. The optical instrument 300 is further configured to obtain second actual optical information corresponding to the standard picture of the second region 20 of the display panel 100 after compensation. The computer 200 is further configured to generate corresponding second compensation data according to the second compensation rule, the standard optical information, and the second actual optical information, wherein the compensation accuracy of the second compensation rule is less than that of the first compensation rule. The computer 200 is further configured to generate a compensation file applied to the display panel 100 according to the first compensation data and the second compensation data.

[0139] As shown, the compensation data generation system can perform a compensation data generation method, which can include but is not limited to the following steps: Figure 7

[0140] S01, start debugging;

[0141] As shown, the computer 200 and the optical instrument 300 (which can be but is not limited to a colorimeter) can be understood as external devices that start running and prepare to obtain first actual optical information and debug the display panel 100; Figure 2

[0142] Before S01, the above step S1 can be performed, i.e., the standard optical information and the first actual optical information are obtained in advance.​​

[0143] S02, E region is debugged by 3D LUT;

[0144] Wherein, the E region can be understood as the first region described above, S02 can be understood as the step S212 described above according to whether the color of the picture corresponding to the third actual optical information observed by the human eye or measured by the optical instrument 300 is consistent with the color of the picture corresponding to the first standard optical information, if not, the computer 200 continues to adjust the transition compensation coordinates, if consistent, the current transition compensation coordinates are recorded;

[0145] S03, obtain 3D LUT;

[0146] Based on the first compensation rule, the color of the two pictures is consistent when recording the current transition compensation coordinates of each standard picture in the step S02, and a plurality of transition compensation coordinates constitute the 3D LUT at this time;

[0147] S04, burn Code;

[0148] It can be understood that the Code corresponding to the plurality of transition compensation coordinates in the 3D LUT generated in step S03 is burned to the display panel 100;

[0149] S05, judge whether the E region satisfies delta E < 2;

[0150] Wherein, delta E can represent the color difference of the two pictures in the step S02 described above, which can be understood in combination with the related definition in the foregoing, and S05 can be understood as the step S212 described above to determine whether the absolute value of the difference between the current third actual optical information and the first standard optical information is greater than or equal to the first error threshold (i.e. equal to 2), in turn to determine whether the computer 200 needs to generate the next transition compensation coordinates;

[0151] If the S05 judgment result is no, return to execute S02;

[0152] If the S05 judgment result is yes, execute:

[0153] S06, 3*3Matrix debugging in the peripheral region;

[0154] Wherein, the peripheral region can be understood as the second region described above, and S06 can be understood as the step S422 described above according to whether the color of the picture corresponding to the fourth actual optical information observed by the human eye or measured by the optical instrument 300 is consistent with the color of the picture corresponding to the second standard optical information, if not, the computer 200 continues to adjust the transition compensation matrix, if consistent, the current transition compensation matrix is recorded;

[0155] S07, obtain 3*3Matrix;

[0156] Based on the second compensation rule, the transition compensation matrix of the plurality of standard pictures is recorded when the colors of the two pictures in step S06 are consistent, and the transition compensation matrix is a 3*3 matrix at this time;

[0157] S08, burning the code;

[0158] It can be understood that the 3*3 matrix (transition compensation matrix) generated in step S07 is burned into the display panel 100 corresponding to the code;

[0159] S09, determining whether the surrounding area satisfies delta E < 2;

[0160] Wherein, delta E can represent the color difference between the two pictures in step S06, which can be understood in combination with the related definition in the above, and S09 can be understood as determining the size relationship between the absolute value of the difference between the current fourth actual optical information and the second standard optical information and the second error threshold (i.e. equal to 2) in step S422, and in turn determining whether the computer 200 needs to generate the next transition compensation matrix;

[0161] If the S09 determination result is no, return to execute S06;

[0162] If the S09 determination result is yes, execute:

[0163] S10, debugging is completed;

[0164] At this time, the final first compensation data (a plurality of compensation coordinates) and the second compensation data (a compensation matrix) can be determined.

[0165] Corresponding to the above-mentioned compensation data generation method, the application also provides a compensation method of a display panel, which is applied to a display panel, and can include but is not limited to the following embodiments and combinations of the following embodiments.

[0166] In some embodiments, as shown in Figure 8 The compensation method of the display panel can include but is not limited to the following steps and combinations of the following steps.

[0167] S101, obtaining initial display data of a to-be-displayed picture, the initial display data including first initial display data corresponding to the first area and second initial display data corresponding to the second area.

[0168] Wherein, the first initial display data and the second initial display data in the initial display data can be understood as display data that has not been subjected to the above-mentioned compensation data processing, and if the initial display data is directly applied to the pixel, it can be considered that there will be a problem of color distortion.

[0169] S102, obtaining second compensation data corresponding to the second area, and compensating the second initial display data according to the second compensation data to generate intermediate display data corresponding to the second area.

[0170] As discussed above, the second compensation data can be used to compensate the luminance difference between the second area 20 (peripheral area) and the first area (central area) of the display area, so the intermediate display data herein acts on the second area, and the first initial display data acts on the first area, which can improve the uniformity of the bright color of the display picture of the display area.

[0171] It should be noted that the second compensation data generated above can be considered to correspond to only part of the gray scale values (referred to as binding point gray scale values). If the gray scale values corresponding to the second initial display data are different from the above-mentioned binding point gray scale values, the corresponding gray scale values can be determined by limiting the difference value, so as to generate the intermediate display data.

[0172] S103, obtaining first compensation data corresponding to the display area, and compensating the first initial display data and the intermediate display data according to the first compensation data to generate first display data and second display data respectively, the compensation accuracy of the second compensation data being less than the compensation accuracy of the first compensation data.

[0173] As discussed above, the first compensation data can be considered to compensate the luminance difference between the picture of the display area and the standard picture, so the first display data and the second display data obtained after the action of the first compensation data can compensate the luminance difference between the picture of the entire display area and the standard picture, and the luminance uniformity of the entire display area.

[0174] Wherein, the compensation accuracy of the second compensation data corresponding to each pixel is less than the compensation accuracy of the first compensation data corresponding to each pixel, which can be referred to the related understanding of "the accuracy of the second compensation rule is less than the accuracy of the first compensation rule" above.

[0175] Similarly, the first compensation data generated above can be considered to correspond to only part of the gray scale values (referred to as binding point gray scale values). If the gray scale values corresponding to the first initial display data and the intermediate display data are different from the above-mentioned binding point gray scale values, the corresponding gray scale values can be determined by limiting the difference value, so as to generate the first display data and the second display data.

[0176] In some embodiments, as shown in Figure 9 After the step S103, the following steps and combinations of the following steps can be included, but are not limited to the following steps.

[0177] S104, Generate a data voltage for each pixel based on the first display data and the second display data.

[0178] Based on the above discussion, a pixel can be understood as a pixel unit or sub-pixel. A pixel unit can include multiple sub-pixels of different colors. Each sub-pixel of a color can have a corresponding data voltage at each grayscale value. The first display data here can include the grayscale value of each sub-pixel in the first region, and the second display data can include the grayscale value of each sub-pixel in the second region. According to the mapping relationship between the grayscale value of each color sub-pixel and the data voltage stored in the display panel, the data voltage of each sub-pixel can be generated.

[0179] S105, drive the plurality of pixels to display according to the plurality of data voltages.

[0180] Specifically, each data voltage is transmitted to the corresponding sub-pixel, and through the action of the corresponding pixel circuit, the sub-pixel can be driven to emit the corresponding brightness, thereby presenting a complete display image in the display area.

[0181] To better implement the above-mentioned compensation method for the display panel, the present invention also provides a display panel, such as... Figure 10 As shown, the display panel includes: a panel body 11; a memory 12 for storing the first compensation data, the second compensation data, and the brightness compensation method of the display panel as described above; and a controller 13 for calling the first compensation data, the second compensation data, and executing the brightness compensation method of the display panel. The memory 12 and the controller 13 can be integrated into a driver chip 14, which is electrically connected to multiple pixels within the panel body 11.

[0182] This invention provides a method and system for generating compensation data, a display panel and its compensation method. The method is based on a smaller first area and a larger second area. First compensation data for the first area is generated according to a first compensation rule with higher precision. After the first compensation data is applied to the second area, second compensation data for the second area is generated according to a second compensation rule with lower precision. This effectively reduces the amount of compensation data for the entire display area, compensates for the color difference between the displayed image and the standard image, and improves the uniformity of the overall brightness and color of the displayed image.

[0183] The generation method of compensation data, the system, the display panel and the compensation method provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by using specific examples in this paper. The above embodiment description is only used to help understand the technical solutions and core ideas of the present application. Those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of generating a compensation data, characterized by, The application is applied to a display panel, the display panel comprises a display area, the display area comprises a first area and a second area, the size of the first area is smaller than the size of the second area, and the generation method of compensation data comprises: obtaining standard optical information corresponding to a standard picture of a display panel, first actual optical information corresponding to the standard picture of the first area; generating corresponding first compensation data according to a first compensation rule, the standard optical information and the first actual optical information; compensating the display panel according to the first compensation data, and obtaining second actual optical information corresponding to the standard picture of the second area in the compensated display panel; generating corresponding second compensation data according to a second compensation rule, the standard optical information and the second actual optical information, and the compensation accuracy of the second compensation rule is smaller than that of the first compensation rule; wherein the number of the standard pictures is greater than 1, and the step of generating corresponding first compensation data according to a first compensation rule, the standard optical information and the first actual optical information comprises: generating a plurality of compensation coordinates corresponding to a plurality of standard pictures according to the first compensation rule, a plurality of standard optical information corresponding to the display panel, and a plurality of first actual optical information corresponding to the first area, each compensation coordinate comprising a plurality of first compensation elements, and a plurality of compensation coordinates constituting the first compensation data; wherein the step of generating corresponding second compensation data according to a second compensation rule, the standard optical information and the second actual optical information comprises: selecting part of the standard pictures as reference standard pictures; generating a corresponding compensation matrix according to the second compensation rule, a plurality of standard optical information corresponding to the display panel respectively for a plurality of reference standard pictures, and a plurality of second actual optical information corresponding to the second area respectively, the compensation matrix comprising a plurality of second compensation elements, the compensation matrix constituting the second compensation data, and the total number of the second compensation elements corresponding to a plurality of standard pictures being smaller than the total number of the first compensation elements corresponding to a plurality of standard pictures.

2. The method of generating compensation data of claim 1, wherein, The first area is a central area of the display area, and the second area is arranged around the central area.

3. The method of claim 1, wherein the compensation data is generated by: The step of generating a corresponding compensation coordinate according to the first compensation rule, the standard optical information corresponding to each standard picture and the first actual optical information corresponding to the first area comprises: determining first standard optical information corresponding to the first area according to the standard optical information and position information of the first area in the display area; generating a transition compensation coordinate according to the first compensation rule, the first standard optical information corresponding to each standard picture and the corresponding first actual optical information; compensating the first area according to the transition compensation coordinate, and obtaining third actual optical information corresponding to the standard picture of the compensated first area; calculating a first difference value between the third actual optical information and the first standard optical information, and determining the transition compensation coordinate as the compensation coordinate of the first region when an absolute value of the first difference value is less than a first error threshold.

4. The method of generating compensation data of claim 1, wherein, The step of generating a corresponding compensation matrix according to the second compensation rule, a plurality of the reference standard pictures, a plurality of the standard optical information corresponding to the display panel, and a plurality of the second actual optical information corresponding to the second region, comprises: determining second standard optical information corresponding to the second region according to the standard optical information and position information of the second region in the display area; generating a transition compensation matrix according to the second compensation rule, a plurality of the second standard optical information corresponding to the reference standard pictures, and a plurality of the second actual optical information corresponding to the reference standard pictures; compensating the second region according to the transition compensation matrix, and obtaining fourth actual optical information corresponding to the standard picture of the second region after compensation; calculating a second difference value between the fourth actual optical information and the second standard optical information, and determining the transition compensation matrix as the compensation matrix when an absolute value of the second difference value is less than a second error threshold.

5. The method of generating compensation data of claim 4, wherein, The second region comprises a plurality of unit regions, the second compensation data comprises a plurality of second sub-compensation data corresponding to the plurality of unit regions respectively, the second actual optical information comprises a plurality of second sub-actual optical information corresponding to the plurality of unit regions respectively, and the second standard optical information comprises a plurality of second sub-standard optical information corresponding to the plurality of unit regions respectively, each of the second sub-compensation data being determined according to the second compensation rule, the second sub-standard optical information corresponding to the unit region, and the second sub-actual optical information corresponding to the unit region.

6. The method of generating compensation data according to claim 1 or 2, wherein, The step of obtaining the first actual optical information corresponding to the standard picture of the display panel comprises: obtaining initial display data corresponding to the standard picture; obtaining optical information of a picture displayed by the first region under control of the initial display data as the first actual optical information; The step of obtaining the second actual optical information corresponding to the standard picture of the display panel after compensation of the display panel by the first compensation data comprises: determining corresponding transition display data according to the initial display data and the first compensation data; obtaining optical information of a picture displayed by the second region under control of the transition display data as the second actual optical information.

7. A compensation method of a display panel, characterized by, The compensation method is applied to a display panel, the display panel comprises a display area, the display area comprises a first region and a second region, a size of the first region is smaller than a size of the second region, and the compensation method comprises: obtaining initial display data of a standard picture and corresponding standard optical information, the initial display data including first initial display data corresponding to the first region and second initial display data corresponding to the second region, the first region displaying optical information of the picture under control of the first initial display data being first actual optical information, the second region displaying optical information of the picture under control of transition display data being second actual optical information, the transition display data being determined according to the initial display data and first compensation data, the first compensation data being generated according to a first compensation rule, the standard optical information and the first actual optical information; obtaining second compensation data corresponding to the second region and compensating the second initial display data according to the second compensation data to generate intermediate display data corresponding to the second region; obtaining first compensation data corresponding to the display region and compensating the first initial display data and the intermediate display data according to the first compensation data to generate first display data and second display data respectively, the compensation precision of the second compensation data being less than that of the first compensation data; wherein the number of the standard pictures is greater than 1, and the step of obtaining the first compensation data corresponding to the display region comprises: generating a plurality of compensation coordinates corresponding to the plurality of standard pictures according to a first compensation rule, a plurality of standard optical information corresponding to the plurality of standard pictures and a plurality of first actual optical information corresponding to the first region, each of the compensation coordinates including a plurality of first compensation elements, and the plurality of compensation coordinates constituting the first compensation data; wherein the step of obtaining the second compensation data corresponding to the second region comprises: selecting part of the standard pictures as reference standard pictures; generating a corresponding compensation matrix according to a second compensation rule, a plurality of standard optical information corresponding to the plurality of reference standard pictures respectively and a plurality of second actual optical information corresponding to the second region respectively, the compensation matrix including a plurality of second compensation elements, the compensation matrix constituting the second compensation data, and the total number of the second compensation elements corresponding to the plurality of standard pictures being less than the total number of the first compensation elements corresponding to the plurality of standard pictures.

8. The compensation method of a display panel according to claim 7, wherein, after the steps of generating the first display data and the second display data, comprising: generating data voltages of each pixel according to the first display data and the second display data; driving a plurality of pixels to display according to the plurality of data voltages.

9. A display panel, characterized by, comprising: a panel body; a memory for storing the first compensation data, the second compensation data obtained by using the generation method of the compensation data according to any one of claims 1 to 8 and the brightness compensation method of the display panel according to any one of claims 1 to 8; a controller for calling the first compensation data, the second compensation data and executing the brightness compensation method of the display panel.

10. A compensation data generation system applied to a display panel, the display panel comprising a display area, the display area comprising a first area and a second area, a size of the first area being smaller than a size of the second area, characterized in that, A brightness compensation method for executing the display panel as claimed in any one of claims 1 to 8, the compensation data generation system comprising: an optical instrument for acquiring the first actual optical information corresponding to the standard picture of the first area; a computer for acquiring the standard optical information corresponding to the standard picture of the display panel; wherein the computer is further configured to generate the first compensation data corresponding to the first compensation rule, the standard optical information and the first actual optical information; wherein the computer is further configured to compensate the display panel according to the first compensation data; wherein the optical instrument is further configured to acquire the second actual optical information corresponding to the standard picture of the second area of the compensated display panel; wherein the computer is further configured to generate the second compensation data corresponding to the second compensation rule, the standard optical information and the second actual optical information, wherein the compensation accuracy of the second compensation rule is less than the compensation accuracy of the first compensation rule; wherein the computer is further configured to generate a compensation file applied to the display panel according to the first compensation data and the second compensation data.

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