Brightness compensation method for tiled screen, display panel and computer readable storage medium

Abstract

The application discloses a brightness compensation method of a spliced screen, a display panel and a computer readable storage medium. The brightness compensation method further adjusts the display brightness of part of the pixel points in the spliced area according to the compensation coefficient after the compensation coefficient is obtained by using the interval and / or brightness of the pixel points in the spliced area and the pixel points in the main area, and the adjusted pixel points are arranged in the same row with intervals, so that the brightness difference between the spliced area and the main area cannot be recognized by the human eye when the spliced screen displays a single gray scale image. According to the application, the display brightness of part of the pixel points is adjusted according to the compensation coefficient, the accuracy and efficiency of the brightness compensation can be improved, and the adjusted part of the pixel points are dispersedly distributed in the spliced area, so that the display uniformity of the spliced screen can be improved. It can be seen that the application can reduce the display difference between the spliced area and the main area of the spliced screen, and improve the display quality of the spliced screen.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a brightness compensation method of a spliced screen, a display panel and a computer readable storage medium. BACKGROUND

[0002] Due to the convenience of transportation, maintenance and process, a super large display is usually spliced by several small and medium-sized display units. In the splicing process, due to the limitation of machining precision, splicing process difficulty and other factors, the pixel point density of the splicing area where the splicing seam is located is inconsistent with that of the main area of each splicing unit after splicing, which leads to a large display difference between the splicing area and the main area, which is easily identified by the human eye, thereby causing the display quality of the spliced screen to deteriorate. SUMMARY

[0003] The technical problem solved by the present application is to provide a brightness compensation method of a spliced screen, a display panel and a computer readable storage medium, which can reduce the display difference between the splicing area and the main area of the spliced screen.

[0004] To solve the above technical problem, one technical solution adopted by the present application is to provide a brightness compensation method of a spliced screen, wherein the spliced screen is provided with a splicing area and a main area; the splicing area includes a splicing seam and at least one row of pixel points located on both sides of the splicing seam and extending along the length direction of the splicing seam, and the main area is an area of the spliced screen except the splicing area; the brightness compensation method comprises:

[0005] obtaining a compensation coefficient by using the interval and / or brightness of the pixel points located in the splicing area and the pixel points located in the main area;

[0006] adjusting the display brightness of part of the pixel points in the splicing area according to the compensation coefficient, and the adjusted pixel points in the same row are arranged at intervals, so that when the spliced screen displays a single gray scale image, the brightness difference between the splicing area and the main area cannot be identified by the human eye.

[0007] The step of obtaining the compensation coefficient by using the interval and / or brightness of the pixel points located in the splicing area and the pixel points located in the main area comprises:

[0008] obtaining a first average interval of adjacent pixel points located on both sides of the splicing seam in a first direction, and a second average interval of adjacent pixel points in the main area in the first direction; wherein the first direction is perpendicular to the length direction of the splicing seam;

[0009] obtaining the difference between the first average interval and the second average interval, and obtaining the ratio of the difference to the second average interval;

[0010] The sum of the ratio and a first constant is taken as the compensation coefficient.

[0011] The step of obtaining the compensation coefficient by using the interval and / or brightness of the pixel points in the splicing region and the pixel points in the main region comprises:

[0012] The splicing screen displays a single gray scale image.

[0013] The first average brightness of all pixel points in the splicing region and the second average brightness of all pixel points in the main region are obtained.

[0014] The difference between the first average brightness and the second average brightness is obtained, and the ratio of the difference and the second average brightness is obtained.

[0015] The compensation coefficient is obtained based on the ratio.

[0016] The step of obtaining the compensation coefficient based on the ratio comprises:

[0017] The sum of twice the ratio and a second constant is taken as the compensation coefficient.

[0018] The step of adjusting the display brightness of the part of the pixel points in the splicing region according to the compensation coefficient comprises:

[0019] For the part of the pixel points in the splicing region, in response to the display of the pixel points according to the compensation coefficient at a historical time before the current time, the pixel points display at the original brightness at the current time; and,

[0020] For the rest of the pixel points in the splicing region except the part of the pixel points, in response to the display of the pixel points at the original brightness at a historical time before the current time, the pixel points display according to the compensation coefficient at the current time.

[0021] The display of the pixel points according to the compensation coefficient means that the display brightness of the pixel points is adjusted to the product of the original brightness and the compensation coefficient.

[0022] The splicing region comprises the splicing seam and each row of pixel points on both sides of the splicing seam, which are the first pixel point group and the second pixel point group, respectively.

[0023] The adjusted pixel points in the first pixel point group and the adjusted pixel points in the second pixel point group are arranged in staggered manner.

[0024] The adjusted pixel points in the first pixel point group are arranged with one pixel point interval between adjacent pixel points, and the adjusted pixel points in the second pixel point group are arranged with one pixel point interval between adjacent pixel points.

[0025] The splicing area includes the splicing seam and each row of pixel points on both sides of the splicing seam, which are respectively the first pixel point group and the second pixel point group.

[0026] The adjusted pixel points in the first pixel point group are arranged in alignment with the adjusted pixel points in the second pixel point group.

[0027] To solve the above technical problems, another technical solution adopted by the present application is to provide a display panel, comprising a splicing screen, a memory and a processor coupled with the splicing screen and the memory respectively, the memory stores program instructions, and the processor can execute the program instructions to perform the brightness compensation method of the splicing screen according to the technical solution.

[0028] To solve the above technical problems, another technical solution adopted by the present application is to provide a computer readable storage medium, the storage medium stores program instructions, and the program instructions can be executed by a processor to implement the brightness compensation method of the splicing screen according to the technical solution.

[0029] The beneficial effects of the present application are: the brightness compensation method provided by the present application further adjusts the display brightness of part of the pixel points in the splicing area according to the compensation coefficient after obtaining the compensation coefficient by the interval and / or brightness of the pixel points in the splicing area and the pixel points in the main area, and the adjusted pixel points in the same row are arranged with an interval, so that when the splicing screen displays a single gray scale image, the brightness difference between the splicing area and the main area cannot be recognized by the human eye. On the one hand, the present application adjusts the display brightness of part of the pixel points according to the compensation coefficient, which can improve the accuracy of brightness compensation, reduce the calculation amount of the brightness compensation process, and improve the brightness compensation efficiency. On the other hand, the present application arranges the adjusted pixel points in the same row with an interval, so that the part of the pixel points with adjusted display brightness are dispersedly distributed in the splicing area, which can improve the display uniformity of the splicing screen. It can be seen that the present application can reduce the display difference between the splicing area and the main area in the splicing screen, and improve the display quality of the splicing screen. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0031] Figure 1 This is a flow chart of an embodiment of a brightness compensation method for a spliced ​​screen according to the present application;

[0032] Figure 2 It is a structural diagram of an embodiment of a splicing screen;

[0033] Figure 3 For Figure 1 Schematic diagram of the brightness distribution of pixels on the dotted lines L1, L2, L3 and L4 in the spliced ​​screen shown;

[0034] Figure 4 for Figure 3 Corresponding human eye brightness effect diagram;

[0035] Figure 5 This is a schematic diagram of the compensation principle of an embodiment of the brightness compensation method of the spliced ​​screen of the present application;

[0036] Figure 6 for Figure 5 Corresponding human eye brightness effect diagram;

[0037] Figure 7 This is a flow chart of an embodiment of a brightness compensation method for a spliced ​​screen according to the present application;

[0038] Figure 8 This is a schematic diagram of the compensation principle of another embodiment of the brightness compensation method of the spliced ​​screen of the present application;

[0039] Figure 9 This is a schematic diagram of the compensation principle of another embodiment of the brightness compensation method of the spliced ​​screen of the present application;

[0040] Figure 10 for Figure 1 A flow chart of an embodiment of step S11;

[0041] Figure 11 for Figure 1 A schematic flow chart of another embodiment of step S11;

[0042] Figure 12 This is a schematic structural diagram of an embodiment of a display panel of the present application;

[0043] Figure 13 This is a structural diagram of an embodiment of a computer-readable storage medium of the present application. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0045] See also Figure 1 , Figure 1 This is a flow chart of an embodiment of a brightness compensation method for a spliced ​​screen according to the present application. The brightness compensation method includes the following steps.

[0046] Step S11 , obtaining a compensation coefficient using the spacing and / or brightness of the pixels located in the stitching area and the pixels located in the main area.

[0047] See also Figure 2 , Figure 2 This is a schematic diagram of the structure of one embodiment of a splicing screen. The splicing screen includes a splicing area S1 and a main area S2. The splicing area S1 is provided with a splicing seam L and at least one row of pixels P on either side of the splicing seam L, extending along the length of the splicing seam L. The main area S2 is the area of ​​the splicing screen excluding the splicing area S1. The pixels P are arranged in an array within the splicing screen. Figure 2 A schematic diagram shows two display units spliced ​​into a spliced ​​screen, with a row of pixels P on each side of the splicing seam L, and the pixels P in adjacent display units are aligned, but the present application is not limited to this.

[0048] This embodiment first uses the spacing and / or brightness of the pixel points P located in the splicing area S1 and the pixel points P located in the main area S2 to obtain the compensation coefficient. Prior to this, it is necessary to obtain the exact position of each pixel point P in the splicing screen and its brightness distribution. Specifically, the position parameters of the pixel points P known when preparing each display unit can be directly used, and the brightness distribution can be further obtained. Alternatively, a brightness distribution image can be obtained when the splicing screen displays a single grayscale image, and the exact position and brightness distribution of the pixel points P can be obtained based on the brightness distribution image. Then, the compensation coefficient can be obtained using the spacing and / or brightness of the pixel points P. The specific acquisition method will be described below.

[0049] See also Figure 3 , Figure 3 For Figure 2 The brightness distribution diagram of the pixels on the dotted lines L1, L2, L3 and L4 in the spliced ​​screen is shown in FIG. Figure 3 It can be seen that the brightness peak appears at the position of the pixel point P, and the arrangement density of the pixel points P in the splicing area S1 and the main area S2 may be different. For example, Figure 2In the case that the pixel density in the splicing area S1 is greater than the pixel density in the main area S2, then in Figure 3 In the case that the pixel density in the splicing area S1 is greater than the pixel density in the main area S2, then in Figure 4 the average brightness of the splicing area S1 is higher than the average brightness of the main area S2, and the brightness distribution obtained by the human eye after capturing is as shown in Figure 4 Figure 3 The corresponding human eye brightness effect diagram is shown in FIG. 6. As can be seen, in the human eye effect, the splicing area S1 and the main area S2 will have an obvious boundary, and the display of the splicing area S1 is brighter, so that brightness compensation needs to be performed on the difference.

[0050] It can be understood that when the pixel density in the splicing area S1 is less than the pixel density in the main area S2, in the human eye effect, the splicing area S1 and the main area S2 will also have an obvious boundary, and the display of the splicing area S1 is darker, which is not shown here.

[0051] In step S12, the display brightness of part of the pixel points in the splicing area is adjusted according to the compensation coefficient, and the adjusted pixel points in the same row are arranged at intervals, so that when the splicing screen displays a single gray scale image, the brightness difference between the splicing area and the main area cannot be identified by the human eye.

[0052] After obtaining the compensation coefficient, the embodiment further adjusts the display brightness of part of the pixel points P in the splicing area S1 according to the compensation coefficient. For example, based on the display effect shown in Figure 3 and Figure 4 the display brightness of part of the pixel points P in the splicing area S1 is adjusted to be smaller, and the specific adjustment is the product of the original brightness and the compensation coefficient, as shown in Figure 5 Figure 5 is a compensation principle diagram of an embodiment of the brightness compensation method of the splicing screen of the present application, so as to reduce the average brightness of all the pixel points P in the splicing area S1. After adjustment, when the splicing screen displays a single gray scale image, the brightness difference between the splicing area S1 and the main area S2 cannot be identified by the human eye, that is, the brightness distribution shown in Figure 5 corresponds to the human eye brightness effect diagram as shown in Figure 6 As can be seen, the embodiment can improve the accuracy of brightness compensation by using a more accurate compensation coefficient, thereby improving the display uniformity of the splicing screen.

[0053] Furthermore, in the embodiment, the adjusted pixel points P are arranged at intervals among the pixel points P extending along the length direction of the splicing seam L on both sides of the splicing seam L. Please refer to Figure 2 the display effect of the splicing screen after the brightness compensation is shown in FIG. 8. Figure 5 ​​In the row of pixel points P on the left side of the splicing seam L, the pixel points on the dashed line L1 and the dashed line L3 are adjusted, and the two pixel points are arranged with a spacing therebetween; in the row of pixel points P on the right side of the splicing seam L, the pixel points on the dashed line L2 and the dashed line L4 are adjusted, and the two pixel points are also arranged with a spacing therebetween.

[0054] It can be seen that, by adjusting the display brightness of part of the pixel points instead of all the pixel points, the display brightness compensation method can reduce the calculation amount of the brightness compensation process, improve the brightness compensation efficiency, and disperse the adjusted pixel points in the splicing area. Even if the splicing area is divided into smaller areas, the brightness distribution is still uniform, so that the display uniformity of the splicing screen can be further improved, and the display quality of the splicing screen can be improved.

[0055] In one embodiment, please refer to Figure 7 , Figure 7 The figure is a flowchart of an embodiment of the display brightness compensation method of the splicing screen of the present application. The display brightness compensation method comprises the following steps.

[0056] In step S21, a compensation coefficient is obtained by using the distance and / or brightness of the pixel points in the splicing area and the pixel points in the main area.

[0057] This step S21 is the same as the above step S11, and will not be described here again.

[0058] In step S22, for part of the pixel points in the splicing area, in response to the display of the pixel points according to the compensation coefficient at the historical time before the current time, the pixel points are displayed with the original brightness at the current time; for the remaining pixel points in the splicing area except for part of the pixel points, in response to the display of the pixel points with the original brightness at the historical time before the current time, the pixel points are displayed according to the compensation coefficient at the current time; wherein the display of the pixel points according to the compensation coefficient means that the display brightness of the pixel points is adjusted to the product of the original brightness and the compensation coefficient.

[0059] Please refer to Figure 5 , Figure 8 , Figure 8 The figure is a compensation principle diagram of another embodiment of the display brightness compensation method of the splicing screen of the present application. It is assumed here that Figure 5 The figure shows the historical time before the current time, wherein the display brightness of part of the pixel points P is adjusted to the product of the original brightness and the compensation coefficient, and the remaining pixel points P are not adjusted, i.e. displayed with the original brightness, then at the current time, Figure 5 The part of the pixel points P that are adjusted are displayed with the original brightness, Figure 5 The display brightness of the remaining pixel points P that are not adjusted is adjusted to the product of the original brightness and the compensation coefficient, as shown in Figure 8 At the current time, the display brightness of the pixel points P in the splicing area is adjusted to the product of the original brightness and the compensation coefficient, as shown in Figure 8 After the luminance adjustment shown, the corresponding human eye luminance effect diagram can continue to refer to Figure 6 When the spliced screen displays a single gray scale image, the luminance difference between the splicing area S1 and the main body area S2 cannot be recognized by the human eye.

[0060] In the embodiment, when the spliced screen displays multiple frames of images, the luminance compensation is performed in a pixel point complementary manner between adjacent frames of images, and the adjusted pixel points are distributed in the splicing area, so that the display uniformity of the spliced screen can be further improved, and the display quality of the spliced screen can be improved.

[0061] In the above embodiments, each row of pixel points located on both sides of the splicing seam L in the splicing area S1 can be defined as a first pixel point group and a second pixel point group. In some embodiments, the adjusted pixel points P in the first pixel point group are arranged in a staggered manner with the adjusted pixel points P in the second pixel point group. Preferably, please continue to refer to Figure 5 and Figure 8 The adjacent adjusted pixel points P in the first pixel point group are spaced apart by one pixel point P, and the adjacent adjusted pixel points P in the second pixel point group are spaced apart by one pixel point P.

[0062] Of course, in other embodiments, the adjacent adjusted pixel points in the first pixel point group and the second pixel point group can also be spaced apart by multiple pixel points, which will not be illustrated here.

[0063] In one embodiment, please refer to Figure 9 , Figure 9 for the compensation principle diagram of another embodiment of the luminance compensation method of the spliced screen. In this embodiment, the adjusted pixel points P in the first pixel point group are arranged in alignment with the adjusted pixel points P in the second pixel point group. In the splicing area S1, the adjusted pixel points are distributed in each micro area in a micro area containing adjacent four pixel points P, which can improve the display uniformity of the spliced screen. In addition, this embodiment adjusts the display luminance of part of the pixel points instead of all the pixel points, which can improve the luminance compensation efficiency.

[0064] In one embodiment, please refer to Figure 10 , Figure 10 for Figure 1 the flowchart of one embodiment of step S11, the compensation coefficient can be obtained by the following steps.

[0065] Step S31, obtaining a first average distance of adjacent pixel points respectively located on both sides of the splicing seam in a first direction, and a second average distance of adjacent pixel points in the main body area in the first direction; wherein the first direction is perpendicular to the length direction of the splicing seam.

[0066] Please continue to refer to Figure 2 After the accurate position of the pixel point P is obtained, the first average interval D1 of the adjacent pixel points P respectively located on both sides of the splicing seam L in the first direction and the second average interval D2 of the adjacent pixel points P in the main body area S2 in the first direction can be obtained; wherein the first direction is perpendicular to the length direction of the splicing seam L, that is, the X direction in the figure.

[0067] In step S32, the difference between the first average interval and the second average interval is obtained, and the ratio of the difference to the second average interval is obtained.

[0068] After the first average interval D1 and the second average interval D2 are obtained, the difference between the two and the ratio of the difference to the second average interval D2 are further obtained, that is, (D1-D2) / D2 is calculated.

[0069] In step S33, the sum of the ratio and the first constant is taken as the compensation coefficient.

[0070] Further, the sum of the above ratio (D1-D2) / D2 and the first constant is taken as the compensation coefficient, which facilitates subsequent brightness compensation of part of the pixel points P in the splicing area S1 according to the compensation coefficient. Preferably, the first constant is set to 1, that is, in the embodiment, the compensation coefficient k satisfies the following formula (1):

[0071]

[0072] It can be understood that when the pixel point density in the splicing area S1 is greater than the pixel point density in the main body area S2, D1 is less than D2, and the above compensation coefficient k is less than 1, adjusting the display brightness of part of the pixel points P to the product of the original brightness and the compensation coefficient is equivalent to reducing the original brightness. When the pixel point density in the splicing area S1 is less than the pixel point density in the main body area S2, D1 is greater than D2, and the above compensation coefficient k is greater than 1, adjusting the display brightness of part of the pixel points P to the product of the original brightness and the compensation coefficient is equivalent to increasing the original brightness. Therefore, the embodiment can reduce the overall average brightness of the splicing area S1 to reduce the display difference between the splicing area S1 and the main body area S2.

[0073] In one embodiment, please refer to Figure 11 , Figure 11 For Figure 1 The flowchart of another embodiment of step S11 is shown in the figure, and the compensation coefficient can also be obtained by the following steps.

[0074] In step S41, the splicing screen displays a single gray scale image.

[0075] First, the splicing screen displays a single gray scale image, which facilitates the use of a brightness acquisition device to obtain the average brightness of different areas.

[0076] Step S42, obtaining the first average brightness of all pixel points in the splicing area, and the second average brightness of all pixel points in the main area.

[0077] Further, the first average brightness M1 of all pixel points P in the splicing area S1 and the second average brightness M2 of all pixel points P in the main area S2 are obtained.

[0078] Step S43, obtaining the difference between the first average brightness and the second average brightness, and obtaining the ratio of the difference and the second average brightness.

[0079] Further, the difference between the first average brightness M1 and the second average brightness M2 is obtained, and the ratio of the difference and the second average brightness M2 is obtained, that is, (M1-M2) / M2 is calculated.

[0080] Step S44, obtaining the compensation coefficient based on the ratio.

[0081] Further, the compensation coefficient k of (M1-M2) / M2 is obtained based on the above ratio. Preferably, the sum of twice the ratio and a second constant can be used as the compensation coefficient, wherein the second constant is preferably set to 1. That is, in the present embodiment, the compensation coefficient k satisfies the following formula (2):

[0082]

[0083] It can be understood that when the pixel point density in the splicing area S1 is greater than the pixel point density in the main area S2, M1 is less than M2, and the above compensation coefficient k is less than 1, then when the display brightness of part of the pixel points P is adjusted to the product of the original brightness and the compensation coefficient, it is equivalent to reducing the original brightness. When the pixel point density in the splicing area S1 is less than the pixel point density in the main area S2, M1 is greater than M2, and the above compensation coefficient k is greater than 1, then when the display brightness of part of the pixel points P is adjusted to the product of the original brightness and the compensation coefficient, it is equivalent to increasing the original brightness. Therefore, the present embodiment can reduce the overall average brightness of the splicing area S1 to reduce the display difference between the splicing area S1 and the main area S2.

[0084] In other embodiments, the bit number of the above difference and the specific value of the second constant can also be set based on the specific values of the first average brightness M1 and the second average brightness M2 to maximize the display difference between the splicing area S1 and the main area S2.

[0085] In other embodiments, the above compensation coefficient obtained based on the pixel spacing and the average brightness can also be weighted and averaged to obtain a final compensation coefficient according to the actual application scenario by setting a suitable weighting coefficient.

[0086] Based on the same inventive concept, the present application also provides a display panel, please refer to Figure 12 , Figure 12 FIG. 1 is a structural schematic diagram of an embodiment of the display panel of the present application, which comprises a tiled screen 121, a memory 122, and a processor 123 coupled with the tiled screen 121 and the memory 122 respectively. The memory 122 stores program instructions, and the processor 123 can execute the program instructions to perform the brightness compensation on the tiled screen 121 according to the brightness compensation method of the tiled screen of any of the above embodiments. For details, please refer to the above embodiments, which will not be repeated here.

[0087] In addition, the present application also provides a computer readable storage medium, please refer to Figure 13 , Figure 13 FIG. 1 is a structural schematic diagram of an embodiment of the display panel of the present application, which comprises a tiled screen 121, a memory 122, and a processor 123 coupled with the tiled screen 121 and the memory 122 respectively. The memory 122 stores program instructions, and the processor 123 can execute the program instructions to perform the brightness compensation on the tiled screen 121 according to the brightness compensation method of the tiled screen of any of the above embodiments. For details, please refer to the above embodiments, which will not be repeated here.

[0088] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A brightness compensation method for tiled screens, characterized in that, The spliced screen comprises a splicing area and a main area; the splicing area is provided with a splicing seam and at least one row of pixel points on each side of the splicing seam extending along the length direction of the splicing seam; the main area is an area of the splicing screen other than the splicing area; the brightness compensation method comprises: acquiring a compensation coefficient by using the spacing and / or brightness of the pixel points in the splicing area and the pixel points in the main area; adjusting the display brightness of part of the pixel points in the splicing area according to the compensation coefficient, and spacing the adjusted pixel points in the same row to make the brightness difference between the splicing area and the main area not be recognized by the human eye when the spliced screen displays a single gray scale image; wherein the step of adjusting the display brightness of part of the pixel points in the splicing area according to the compensation coefficient comprises: for the part of the pixel points in the splicing area, in response to the display of the pixel points according to the compensation coefficient at a historical time before the current time, the pixel points display at the original brightness at the current time; and for the rest of the pixel points in the splicing area other than the part of the pixel points, in response to the display of the pixel points at the original brightness at a historical time before the current time, the pixel points display according to the compensation coefficient at the current time; wherein the display of the pixel points according to the compensation coefficient means that the display brightness of the pixel points is adjusted to the product of the original brightness and the compensation coefficient.

2. The luminance compensation method according to claim 1, characterized in that, The step of acquiring the compensation coefficient by using the spacing and / or brightness of the pixel points in the splicing area and the pixel points in the main area comprises: acquiring a first average spacing of adjacent pixel points on each side of the splicing seam in a first direction, and a second average spacing of adjacent pixel points in the main area in the first direction; wherein the first direction is perpendicular to the length direction of the splicing seam; acquiring the difference between the first average spacing and the second average spacing, and acquiring the ratio of the difference to the second average spacing; taking the sum of the ratio and a first constant as the compensation coefficient.

3. The luminance compensation method of claim 1, wherein, The step of acquiring the compensation coefficient by using the spacing and / or brightness of the pixel points in the splicing area and the pixel points in the main area comprises: making the spliced screen display a single gray scale image; acquiring a first average brightness of all the pixel points in the splicing area, and a second average brightness of all the pixel points in the main area; acquiring the difference between the first average brightness and the second average brightness, and acquiring the ratio of the difference to the second average brightness; acquiring the compensation coefficient based on the ratio.

4. The luminance compensation method according to claim 3, wherein The step of acquiring the compensation coefficient based on the ratio comprises: taking the sum of twice the ratio and a second constant as the compensation coefficient.

5. The brightness compensation method according to claim 1, wherein the splicing area comprises the splicing seam and one row of pixel points on each side of the splicing seam, respectively a first pixel point group and a second pixel point group; The adjusted pixel points in the first pixel point group are arranged staggeredly with the adjusted pixel points in the second pixel point group.

6. The brightness compensation method of claim 5, wherein, The adjacent adjusted pixel points in the first pixel point group are separated by one pixel point, and the adjacent adjusted pixel points in the second pixel point group are separated by one pixel point.

7. The brightness compensation method of claim 1, wherein, The splicing area includes the splicing seam and each row of pixel points on both sides of the splicing seam, which are the first pixel point group and the second pixel point group respectively; The adjusted pixel points in the first pixel point group are arranged in alignment with the adjusted pixel points in the second pixel point group.

8. A display panel, characterized by, The display screen includes a splicing screen, a memory, and a processor coupled with the splicing screen and the memory respectively. The memory stores program instructions, and the processor can execute the program instructions to perform the brightness compensation method of the splicing screen according to any one of claims 1-7.

9. A computer-readable storage medium, characterized in that, The storage medium stores program instructions, which can be executed by the processor to implement the brightness compensation method of the splicing screen according to any one of claims 1-7.

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