Compensation method, compensation device, and electronic device

Abstract

The application provides a compensation method, a compensation device and an electronic equipment; the compensation method comprises the following steps: after the gray scale image of a binding point of a liquid crystal display panel and the position data of the liquid crystal display panel are acquired, the position data of each subzone of the liquid crystal display panel is determined, the brightness data of each subzone corresponding to the gray scale image of the binding point is acquired, then the brightness data of all pixels of the liquid crystal display panel is determined according to the position data of each subzone and the brightness data of each subzone, then the gray scale data of all pixels of the liquid crystal display panel corresponding to the gray scale image of the binding point of the liquid crystal display panel is acquired, then the brightness correction coefficient matrix of the liquid crystal display panel is determined based on the brightness data and the gray scale data, so that when the gray scale data of the liquid crystal display panel is determined by shooting through a camera, the compensation is performed after the gray scale data is corrected through the brightness correction coefficient, the compensation data is relatively accurate, the uniformity of the liquid crystal display panel is improved, and the amount of data stored by the liquid crystal display panel does not need to be increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a compensation method, a compensation device and an electronic device. BACKGROUND

[0002] TFT-LCD (thin film transistor-liquid crystal display) is widely used due to its long service life, mature technology and low price. In order to realize large-screen display, the existing display device is formed by splicing multiple display panels. Due to the existence of the frame of the liquid crystal display panel, there is a problem of a large frame at the splicing position of the two liquid crystal display panels, which leads to the appearance of splicing dark lines. In order to solve the problem of splicing dark lines, the existing splicing display device sets an LED (light-emitting diode) light bar at the splicing position of the two liquid crystal display panels. However, during the use of the splicing display device, it is found that after demura compensation, the uniformity of the LED lamp bead is better than that of the liquid crystal display panel, and the difference between the liquid crystal display panel and the LED light bar at the splicing position of the two liquid crystal display panels can still be obviously perceived, thereby leading to uneven display.

[0003] Therefore, the existing splicing display device has the technical problem of uneven display caused by the fact that the uniformity of the LED light bar is higher than that of the liquid crystal display panel. SUMMARY

[0004] The embodiments of the present application provide a compensation method, a compensation device and an electronic device to alleviate the technical problem of uneven display caused by the fact that the uniformity of the LED light bar is higher than that of the liquid crystal display panel in the existing splicing display device.

[0005] The embodiments of the present application provide a compensation method for compensating a splicing display device including a liquid crystal display panel and a light-emitting diode display panel, which comprises:

[0006] obtaining a bind point gray scale image of the liquid crystal display panel and position data of the liquid crystal display panel; wherein the liquid crystal display panel comprises a plurality of partitions;

[0007] determining position data of each partition based on the position data of the liquid crystal display panel, and obtaining luminance data of each partition corresponding to the bind point gray scale image;

[0008] determining luminance data of all pixels of the liquid crystal display panel according to the position data of each partition and the luminance data of each partition;

[0009] obtaining gray scale data of all pixels of the liquid crystal display panel corresponding to the bind point gray scale image of the liquid crystal display panel;

[0010] determine a luminance correction coefficient matrix of the liquid crystal display panel based on the luminance data and the grayscale data;

[0011] compensate the liquid crystal display panel according to the luminance correction coefficient matrix.

[0012] In some embodiments, the step of determining the position data of each sub-region based on the position data of the liquid crystal display panel and obtaining the luminance data of each sub-region corresponding to the binding point grayscale image comprises:

[0013] obtaining the resolution of the liquid crystal display panel, partitioning the liquid crystal display panel based on the resolution of the liquid crystal display panel, and determining the number of sub-regions; the array of each sub-region of the liquid crystal display panel is arranged, and the number of pixels in each sub-region is the same;

[0014] determining the position data of each sub-region based on the position data of the liquid crystal display panel and the number of sub-regions;

[0015] obtaining the luminance information of the center position of each sub-region in the binding point grayscale image, and taking the luminance information of the center position of each sub-region as the luminance data of each sub-region.

[0016] In some embodiments,

[0017] The step of determining the luminance data of all pixels of the liquid crystal display panel according to the position data of each sub-region and the luminance data of each sub-region comprises:

[0018] determining the luminance data of the edge pixels of the liquid crystal display panel according to the position data of each sub-region and the luminance data of each sub-region;

[0019] interpolating the luminance of other pixels of the liquid crystal display panel according to the luminance data of each sub-region and the luminance data of the edge pixels, and fitting to obtain the luminance data of all pixels of the liquid crystal display panel.

[0020] In some embodiments, the step of interpolating the luminance of other pixels of the liquid crystal display panel according to the luminance data of each sub-region and the luminance data of the edge pixels, and fitting to obtain the luminance data of all pixels of the liquid crystal display panel comprises:

[0021] interpolating the luminance data of all pixels of the liquid crystal display panel using a Spline interpolation method or a linear interpolation method according to the luminance data of each sub-region and the luminance data of the edge pixels.

[0022] In some embodiments, after the step of determining the luminance data of all pixels of the liquid crystal display panel according to the position data of each of the partitions and the luminance data of each of the partitions, the method further comprises:

[0023] determining the luminance data of a center pixel of the liquid crystal display panel based on the luminance data of all pixels of the liquid crystal display panel;

[0024] determining a luminance normalization matrix of the liquid crystal display panel according to the luminance data of all pixels of the liquid crystal display panel and the luminance data of the center pixel of the liquid crystal display panel.

[0025] In some embodiments, after the step of obtaining the gray scale data of all pixels of the liquid crystal display panel corresponding to the gray scale image of the tie point of the liquid crystal display panel, the method further comprises:

[0026] determining the gray scale data of a center pixel of the liquid crystal display panel according to the gray scale data of all pixels of the liquid crystal display panel;

[0027] determining a gray scale normalization matrix of the liquid crystal display panel according to the gray scale data of all pixels of the liquid crystal display panel and the gray scale data of the center pixel of the liquid crystal display panel.

[0028] In some embodiments, the step of determining the luminance correction coefficient matrix of the liquid crystal display panel based on the luminance data and the gray scale data comprises:

[0029] determining the luminance correction coefficient matrix of the liquid crystal display panel according to the luminance normalization matrix and the gray scale normalization matrix.

[0030] In some embodiments, the step of compensating the liquid crystal display panel according to the luminance correction coefficient matrix comprises:

[0031] determining a curve of luminance and gray scale of each pixel according to the gray scale data of all pixels of the liquid crystal display panel;

[0032] determining the actual luminance of all pixels of the liquid crystal display panel according to the luminance correction coefficient matrix and the gray scale data of all pixels of the liquid crystal display panel;

[0033] determining compensation data of the liquid crystal display panel according to the actual luminance of all pixels of the liquid crystal display panel and the curve of luminance and gray scale of each pixel, and compensating the liquid crystal display panel using the compensation data of the liquid crystal display panel.

[0034] Meanwhile, the embodiment of the present application provides a compensation device for compensating a spliced display device including a liquid crystal display panel and a light emitting diode display panel, the compensation device comprising:

[0035] a first obtaining module, configured to obtain a bind point gray scale image of the liquid crystal display panel and position data of the liquid crystal display panel; wherein the liquid crystal display panel comprises a plurality of sub-zones;

[0036] a second obtaining module, configured to determine position data of each sub-zone based on the position data of the liquid crystal display panel, and obtain luminance data of each sub-zone corresponding to the bind point gray scale image;

[0037] a first processing module, configured to determine luminance data of all pixels of the liquid crystal display panel according to the position data of each sub-zone and the luminance data of each sub-zone;

[0038] a third obtaining module, configured to obtain gray scale data of all pixels of the liquid crystal display panel corresponding to the bind point gray scale image of the liquid crystal display panel;

[0039] a second processing module, configured to determine a luminance correction coefficient matrix of the liquid crystal display panel based on the luminance data and the gray scale data;

[0040] a compensation module, configured to compensate the liquid crystal display panel according to the luminance correction coefficient matrix.

[0041] Meanwhile, the embodiment of the present application provides an electronic device for compensating a spliced display device including a liquid crystal display panel and a light emitting diode display panel, the electronic device comprising a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor implements the steps in the compensation method of any one of the above embodiments when executing the program.

[0042] Beneficial effects: the embodiment of the present application provides a compensation method, a compensation device and an electronic device; the compensation method determines the position data of each subzone of the liquid crystal display panel after acquiring the binding point gray scale image of the liquid crystal display panel and the position data of the liquid crystal display panel, acquires the brightness data of each subzone corresponding to the binding point gray scale image, then determines the brightness data of all pixels of the liquid crystal display panel according to the position data of each subzone and the brightness data of each subzone, then acquires the gray scale data of all pixels of the liquid crystal display panel corresponding to the binding point gray scale image of the liquid crystal display panel, and then determines the brightness correction coefficient matrix of the liquid crystal display panel based on the brightness data and the gray scale data, so that when the gray scale data of the liquid crystal display panel is determined by shooting through the camera, the compensation data is more accurate after the compensation by correcting the brightness correction coefficient, the uniformity of the liquid crystal display panel is improved, and the data amount stored by the liquid crystal display panel does not need to be increased. BRIEF DESCRIPTION OF DRAWINGS

[0043] The technical solutions and other beneficial effects of the present application will be apparent from the following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings.

[0044] Figure 1 The flowchart of the compensation method of the display panel provided by the embodiment of the present application.

[0045] Figure 2 The first schematic diagram of the display panel provided by the embodiment of the present application.

[0046] Figure 3 The interpolation diagram of the brightness data of the display panel provided by the embodiment of the present application.

[0047] Figure 4 The fitting diagram of the brightness data of the display panel provided by the embodiment of the present application.

[0048] Figure 5 The schematic diagram of the binding point gray scale image of the display panel provided by the embodiment of the present application.

[0049] Figure 6 The curve diagram of the gray scale and brightness of the pixel of the display panel provided by the embodiment of the present application.

[0050] Figure 7 The structural schematic diagram of the compensation device provided by the embodiment of the present application.

[0051] Figure 8 The structural schematic diagram of the electronic device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0052] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0053] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] The disclosure below provides many different embodiments or examples for implementing different structures of the application. For the purpose of simplicity, the description below of the specific examples refers only to the features and concepts of those examples. It is not intended to limit the application to the examples described but rather the application is to be limited only by the claims. Furthermore, the skilled person will recognize that the various examples described can be combined, and / or various examples can be used in combination with one another. In addition, the skilled person will recognize that the various processes and materials described can be applied using other processes and / or other materials.

[0057] Embodiments of the present application are directed to the technical problem that the uniformity of the LED light bar is higher than the uniformity of the liquid crystal display panel in the existing spliced display device, resulting in uneven display. A compensation method, a compensation device and an electronic equipment are provided to alleviate the above technical problem.

[0058] As shown in Figure 1 Embodiments of the present application provide a compensation method for compensating a spliced display device including a liquid crystal display panel and a light-emitting diode display panel. The compensation method includes:

[0059] S1, obtaining a binding point gray scale image of the liquid crystal display panel and position data of the liquid crystal display panel; wherein the liquid crystal display panel includes a plurality of partitions.

[0060] Specifically, the light-emitting diode display panel can only include a light bar, the light bar and the liquid crystal display panel use the same driving circuit, or the light-emitting diode display panel includes a light bar and a driving circuit, and the light bar is driven by the driving circuit.

[0061] Specifically, the binding point gray scale image of the liquid crystal display panel refers to the gray scale image that needs to be photographed. For example, the liquid crystal display panel performs compensation through part of the gray scale image during the demura compensation process. The image corresponding to these gray scales is the binding point gray scale image, such as the 16th gray scale image, the 25th gray scale image, the 32nd gray scale image, the 60th gray scale image, the 128th gray scale image, the 224th gray scale image and the 255th gray scale image. The demura compensation effect is better through the data of these gray scale images, so these gray scale images can be used as the binding point gray scale image.

[0062] Specifically, the position data of the liquid crystal display panel can be determined according to the number and arrangement of the pixels of the liquid crystal display panel. For example, the liquid crystal display panel includes 3840*2160 pixels, and the position data of these pixels can be determined as the position data of the liquid crystal display panel.

[0063] Specifically, for example, the coordinates of the pixel in the first row and the first column in the liquid crystal display panel are defined as (1, 1), and the coordinates of the pixel in the last row and the last column can be defined as (3840, 2160), and the coordinates of all the pixels can be determined as the position data of the liquid crystal display panel.

[0064] Specifically, the partition of the liquid crystal display panel refers to the division of the area of the pixels in the liquid crystal display panel, and the number of partitions of the liquid crystal display panel can be set according to requirements. The more the number of partitions, the more accurate the data obtained. However, considering the accuracy in the measurement process, the number of partitions also does not need to be set too much.

[0065] Specifically, in the process of obtaining the bind point gray scale image of the liquid crystal display panel, a signal can be sent to the liquid crystal display panel to make the liquid crystal display panel display the corresponding gray scale image, and then the bind point gray scale image of the liquid crystal display panel is received or obtained.

[0066] S2, determining the position data of each partition based on the position data of the liquid crystal display panel, and obtaining the brightness data of each partition corresponding to the bind point gray scale image.

[0067] Specifically, the brightness data of each partition corresponding to the bind point gray scale image can be determined by the brightness meter measurement.

[0068] Specifically, it can be understood that when the bind point gray scale image includes a plurality of gray scale corresponding bind point gray scale images, the brightness data of each partition determined also has a plurality, for example, the bind point gray scale image includes the 16th gray scale corresponding bind point gray scale image and the 25th gray scale corresponding bind point gray scale image, then the brightness data of each partition determined by the 16th gray scale corresponding bind point gray scale image is obtained, and the brightness data of each partition determined by the 25th gray scale corresponding bind point gray scale image is obtained.

[0069] Specifically, in determining the position data of the liquid crystal display panel, the position data of each partition can be determined according to the partition mode and position.

[0070] As shown in Figure 2 The liquid crystal display panel 1 includes 96 partitions 11, each partition 11 is circular in shape, and the diameter of each partition 11 is 200 pixels. Therefore, the position data of each partition can be determined according to the position data of the liquid crystal display panel. However, the shape of each partition and the number of pixels in each partition can be determined according to requirements.

[0071] Specifically, the existing camera shooting determines the gray scale of the liquid crystal display panel. In the corresponding compensation process of the liquid crystal display panel, due to the deviation of the camera itself, the compensation data determined by the camera shooting has low accuracy, and the uniformity of the liquid crystal display panel after compensation is low. In the spliced display device, the LED light bar is shot by a front camera. Compared with the CCD (Charge Coupled Device) camera used by the liquid crystal display panel, the data obtained by shooting is more accurate. Moreover, since the number of pixel points in the LED light bar is small, each pixel point in the LED light bar can be compensated. On the other hand, the liquid crystal display panel is compensated in zones. Therefore, the compensation data also has a certain deviation, which causes the display uniformity of the corresponding region of the LED light bar to be obviously different from that of the corresponding region of the liquid crystal display panel. The liquid crystal display panel adopts the mode of setting a compensation value for each region, which has the problem of too large amount of data to be stored. The present application aims at the above technical problems. By determining the brightness data of each zone, specifically by determining the brightness data of each zone by a brightness meter, and by corresponding data processing, the compensation uniformity of the liquid crystal display panel can be increased without increasing the amount of data stored by the liquid crystal display panel, thereby reducing the display difference between the light-emitting diode display panel and the liquid crystal display panel.

[0072] Specifically, the brightness data determined by the brightness meter is more accurate than the brightness data determined by the CCD camera. However, the accuracy of the brightness meter cannot be reached when the liquid crystal display panel adopts the brightness meter to determine the brightness data of each pixel, and the cost is high. The present application processes the data collected by the brightness meter, and determines the brightness correction coefficient matrix, so that all the liquid crystal display panels can be compensated without measuring the brightness of each liquid crystal display panel for compensation, which can improve the compensation effect, improve the efficiency, and reduce the cost.

[0073] In some embodiments, the step of determining the position data of each zone based on the position data of the liquid crystal display panel and obtaining the brightness data of each zone corresponding to the bind point gray scale image comprises: obtaining the resolution of the liquid crystal display panel, partitioning the liquid crystal display panel based on the resolution of the liquid crystal display panel, and determining the number of partitions; each partition array of the liquid crystal display panel is arranged, and the number of pixels in each partition is the same; determining the position data of each zone based on the position data of the liquid crystal display panel and the number of partitions; obtaining the brightness information of the center position of each zone in the bind point gray scale image, and taking the brightness information of the center position of each zone as the brightness data of each zone.

[0074] Specifically, when determining the resolution of the liquid crystal display panel, the liquid crystal display panel can be divided into corresponding partitions according to the resolution of the liquid crystal display panel, and the number of partitions is determined, for example Figure 2 When the resolution of the liquid crystal display panel is 3840*2160, considering the measurement accuracy and efficiency of the luminance meter, the liquid crystal display panel is divided into 96 regions, and the number of pixels in each region is the same, and the area of each partition is the same, so that the difference between the data in the same partition is small when collecting and compensating the data of each partition, and the compensation and data processing of each partition are similar, so that the uniformity of the liquid crystal display panel is good.

[0075] Specifically, when using a luminance meter to measure the liquid crystal display panel, the luminance meter can be used to measure the luminance data of the pixels at the center position of each partition, for example, if there are 100 arrayed pixels in a partition, the luminance data of the pixel at coordinates (5, 5) can be used as the luminance data of the partition. But considering that the measurement of the luminance meter may not be accurate to the pixel, the luminance data of the partition measured by the luminance meter can be used as the luminance data of the partition, for example, the actual luminance meter measures the luminance data of the pixel at coordinates (4, 5), which can also be used as the luminance data of the partition, but in the record, it is recorded as the luminance data of the pixel at coordinates (5, 5).

[0076] Specifically, taking the resolution of the liquid crystal display panel as 3840*2160 and the 96 regions determined by the above partitioning method as an example, 8*12 luminance data can be measured, and the row coordinates corresponding to these luminance data include 160, 480, 800, 1120, 1440, 1760, 2080, 2400, 2720, 3040, 3360, 3680, and the column coordinates include 135, 405, 675, 945, 1215, 1485, 1755, 202, and the corresponding 96 partition luminance data can be determined as the luminance data of 96 pixels.

[0077] Specifically, the above row coordinates are determined based on the number of rows and columns of the 96 partitions. It can be understood that the 96 partitions include 12 columns and 8 rows, so the interval of the row coordinates can be set to 320, and the first and last coordinates can be set to half of the row interval. The interval of the column coordinates is set to 270, and the first and last coordinates are set to half of the column interval.

[0078] S3, according to the position data of each partition and the luminance data of each partition, the luminance data of all pixels of the liquid crystal display panel is determined.

[0079] Specifically, it can be understood that when the binding point gray scale image includes a plurality of gray scale corresponding binding point gray scale images, the brightness data of all pixels of the liquid crystal display panel includes the brightness data of all pixels at different gray scales, for example, when the binding point gray scale image includes the 16th gray scale corresponding binding point gray scale image and the 25th gray scale corresponding binding point gray scale image, the brightness data of all pixels at the 16th gray scale is determined, and the brightness data of all pixels at the 25th gray scale is determined.

[0080] Specifically, after determining the position data of each partition and the brightness data of each partition, the brightness data of all pixels of the liquid crystal display panel can be determined, so as to compensate all pixels and improve the uniformity of the liquid crystal display panel.

[0081] Specifically, when determining the brightness data of each partition, the brightness data of the center position of each partition is determined, and then the brightness data of all pixels is determined according to the brightness data of the center position of each partition.

[0082] In some embodiments, the step of determining the brightness data of all pixels of the liquid crystal display panel according to the position data of each partition and the brightness data of each partition includes: determining the brightness data of the edge pixels of the liquid crystal display panel according to the position data of each partition and the brightness data of each partition; and interpolating the brightness of other pixels of the liquid crystal display panel according to the brightness data of each partition and the brightness data of the edge pixels to fit to obtain the brightness data of all pixels of the liquid crystal display panel.

[0083] Specifically, since the brightness data of the determined partition does not include the brightness data of the pixels in the edge region, it is difficult to perform data fitting or the effect of data fitting is poor, so the brightness data of the edge pixels of the liquid crystal display panel can be determined according to the position data of each partition and the brightness data of each partition, and then the brightness data of all pixels is obtained by interpolation fitting.

[0084] Specifically, still taking the brightness data of the partition determined in the above embodiment as an example, after determining 8*12 brightness data, the brightness data of the pixels at the positions with row coordinates of 1 or 3840 and column coordinates of 1 or 2160 need to be determined, then the coordinates of the points with row coordinates of 1 and 3840 can be obtained by first expanding the number of columns and using a cubic polynomial fitting method, at this time, the brightness data of 8*14 pixels is determined, then the number of rows is expanded, and the coordinates of the points with column coordinates of 1 and 2160 are obtained by using a cubic polynomial fitting method, then the brightness data of 10*14 pixels is determined, and the above data includes the brightness data of the edge pixels.

[0085] Specifically, the four systems to be determined in the cubic polynomial fitting can be determined by the least squares method. The independent variable in the cubic polynomial can be brightness, and the dependent variable can be coordinates.

[0086] Specifically, such as Figure 3 As shown, taking the horizontal axis as the row coordinate and the column coordinate as the brightness as an example, after determining the brightness of the pixels with row coordinates of 160, 480, 800, 1120, 1440, 1760, 2080, 2400, 2720, 3040, 3360, and 3680, Figure 3 The second point, 112, represents the corresponding position of the brightness of these pixels and their row coordinates. The brightness of the pixels with row coordinates 1 and 3860 can be obtained by fitting a cubic polynomial. Figure 3 The first point 111 in the diagram represents the brightness of the pixel at row coordinates 1 and 3860 and the corresponding position of the pixel at row coordinates 1 and 3860.

[0087] In some embodiments, the step of interpolating the brightness of other pixels of the liquid crystal display panel based on the brightness data of each partition and the brightness data of the edge pixels to obtain the brightness data of all pixels of the liquid crystal display panel includes: using a spline interpolation method or a linear interpolation method to obtain the brightness data of all pixels of the liquid crystal display panel based on the brightness data of each partition and the brightness data of the edge pixels.

[0088] Specifically, after determining the brightness data of each partition and the brightness data of the edge pixels, the brightness data of all pixels can be obtained by interpolation fitting. Specifically, the Spline interpolation method or the linear interpolation method can be used.

[0089] Specifically, the brightness data of the liquid crystal display panel determined by the Spline interpolation method is more accurately fitted for the brightness data of pixels at the edge positions.

[0090] In some embodiments, after the step of determining the brightness data of all pixels of the liquid crystal display panel based on the position data of each partition and the brightness data of each partition, the method further includes: determining the brightness data of the center pixel of the display panel based on the brightness data of all pixels of the liquid crystal display panel; and determining the brightness normalization matrix of the liquid crystal display panel based on the brightness data of all pixels of the liquid crystal display panel and the brightness data of the center pixel of the liquid crystal display panel.

[0091] Specifically, since a luminance meter measures the brightness of a display panel, while a camera captures the grayscale of a liquid crystal display panel, the two have different measurement standards. Therefore, by determining a luminance normalization matrix and a grayscale normalization matrix, the data from both can be processed under the same standard, thus making the data processing more accurate.

[0092] Specifically, the center pixel can be determined based on the resolution of the display panel. For example, if the resolution of the LCD panel is 3840*2160, then the pixel with row coordinate 1920 and column coordinate 1080 can be determined as the center pixel.

[0093] Specifically, the brightness normalization matrix of the LCD panel can be obtained by dividing the brightness data of all pixels by the brightness data of the center pixel. For example, if the brightness of the pixel in the first row and first column is 908 and the brightness of the center pixel is 1000, then the value of the corresponding pixel in the first row and first column of the brightness normalization matrix can be determined, which is 908 / 1000 = 0.908. Similarly, the values ​​of other pixels in the brightness normalization matrix can be determined to obtain the brightness normalization matrix. It can be understood that the value of the center pixel in the brightness normalization matrix is ​​1.

[0094] Specifically, such as Figure 4 As shown, Figure 4 One direction's coordinate is the row coordinate, one direction's coordinate is the column coordinate, and one direction's coordinate is the normalized brightness value, such as... Figure 4 As shown, the normalized brightness values ​​of each pixel are different.

[0095] S4, acquire the grayscale data of all pixels of the liquid crystal display panel corresponding to the grayscale image of the bound dots of the liquid crystal display panel.

[0096] Specifically, the grayscale data of all pixels of the liquid crystal display panel corresponding to the bound-dot grayscale image of the liquid crystal display panel can be determined by taking pictures with a camera.

[0097] Specifically, it can be understood that when the bound-point grayscale image includes bound-point grayscale images corresponding to multiple grayscale levels, the grayscale data of all pixels in the liquid crystal display panel includes the grayscale data of all pixels under different grayscale levels. For example, if the bound-point grayscale image includes the bound-point grayscale image corresponding to the 16th grayscale level and the bound-point grayscale image corresponding to the 25th grayscale level, then the grayscale data of all pixels under the 16th grayscale level will be determined, and the grayscale data of all pixels under the 25th grayscale level will also be determined.

[0098] Specifically, when using a camera to capture a grayscale image of a liquid crystal display panel, the liquid crystal display panel and the background can be photographed, and then the grayscale image of the liquid crystal display panel can be extracted, and the grayscale of each pixel of the liquid crystal display panel can be determined.

[0099] Specifically, such as Figure 5 As shown, when using a camera to capture a grayscale image of a bound dot display panel, as... Figure 5 As shown in (a), a background image 21 and a grayscale image 22 of the binding dots of the liquid crystal display panel will be captured, as shown in Figure (a).Figure 5 In the step (b) shown in the method 2000, the bind point gray scale image 22 of the liquid crystal display panel can be extracted to determine the gray scale data of each pixel of the liquid crystal display panel.

[0100] In some embodiments, after the step of obtaining the gray scale data of all pixels of the liquid crystal display panel corresponding to the bind point gray scale image of the liquid crystal display panel, the method further comprises: determining the gray scale data of the center pixel of the liquid crystal display panel according to the gray scale data of all pixels of the liquid crystal display panel; and determining the gray scale normalization matrix of the liquid crystal display panel according to the gray scale data of all pixels of the liquid crystal display panel and the gray scale data of the center pixel of the liquid crystal display panel.

[0101] Specifically, since the brightness meter measures the brightness of the liquid crystal display panel, and the camera captures the gray scale of the liquid crystal display panel, the two standards are not the same, therefore, by determining the brightness normalization matrix and the gray scale normalization matrix, the data of the two can be processed under the same standard, so that the data processing is more accurate.

[0102] Specifically, the gray scale normalization matrix of the liquid crystal display panel can be obtained by dividing the gray scale data of all pixels by the gray scale data of the center pixel, for example, the gray scale of the pixel in the first row and the first column is 98, and the gray scale of the center pixel is 100, then the value corresponding to the pixel in the first row and the first column in the gray scale normalization matrix can be determined, that is, 98 / 100=0.98, and the values corresponding to other pixels in the gray scale normalization matrix can be determined in the same way, so as to obtain the gray scale normalization matrix. It can be understood that the value corresponding to the center pixel in the gray scale normalization matrix is 1.

[0103] S5, determining the brightness correction coefficient matrix of the liquid crystal display panel based on the brightness data and the gray scale data.

[0104] Specifically, after the brightness data and the gray scale data are determined, since the bind point gray scale image includes multiple images, the brightness correction coefficient matrix under each gray scale can be determined correspondingly, for example, the bind point gray scale image includes 7 images, then 7 brightness correction coefficient matrices under 7 gray scales can be determined.

[0105] In some embodiments, the step of determining the brightness correction coefficient matrix of the liquid crystal display panel based on the brightness data and the gray scale data comprises: determining the brightness correction coefficient matrix of the liquid crystal display panel according to the brightness normalization matrix and the gray scale normalization matrix. After the brightness normalization matrix and the gray scale normalization matrix are determined, the deviation of each pixel from the center pixel can be determined, so that the brightness under each gray scale of each pixel can be corrected by the brightness correction coefficient matrix in the subsequent process, and the uniformity of the liquid crystal display panel is improved.

[0106] ​Specifically, the brightness correction coefficient matrix can be obtained by dividing the values ​​in the brightness normalization matrix by the values ​​in the grayscale normalization matrix. For example, the value of the pixel in the first row and first column of the brightness normalization matrix corresponding to the 16th gray level can be divided by the value of the pixel in the first row and first column of the grayscale normalization matrix corresponding to the 16th gray level to obtain the brightness correction coefficient of the pixel in the first row and first column at the 16th gray level. Similarly, the brightness correction coefficient of each pixel at each gray level can be determined, thus obtaining the brightness correction coefficient matrix for each gray level.

[0107] S6, the liquid crystal display panel is compensated according to the brightness correction coefficient matrix.

[0108] Specifically, after determining the brightness correction coefficient matrix, the brightness of each pixel can be corrected based on the brightness correction coefficient, and then the LCD panel can be compensated to improve the uniformity of the LCD panel.

[0109] In some embodiments, the step of compensating the liquid crystal display panel according to the brightness correction coefficient matrix includes: determining the brightness-grayscale curve of each pixel based on the grayscale data of all pixels of the liquid crystal display panel; determining the actual brightness of all pixels of the liquid crystal display panel based on the brightness correction coefficient matrix and the grayscale data of all pixels of the liquid crystal display panel; determining compensation data of the liquid crystal display panel based on the actual brightness of all pixels of the liquid crystal display panel and the brightness-grayscale curve of each pixel; and using the compensation data of the liquid crystal display panel to compensate the liquid crystal display panel.

[0110] Specifically, such as Figure 6 As shown, Figure 6 In this graph, the horizontal axis represents grayscale and the vertical axis represents brightness. When acquiring grayscale data of all pixels on the LCD panel captured by a camera, the grayscale data can be processed to obtain brightness data for each pixel. This allows determination of the brightness of each pixel at different grayscale levels. For example... Figure 6 The brightness at gray levels 16, 25, 32, 128, 224, and 255 is obtained. Then, the gray level and brightness curve 1 of each pixel can be determined by fitting. Then, the actual brightness of the pixel is obtained by multiplying the gray level data of each pixel at each gray level by the corresponding brightness correction coefficient. Then, the actual gray level corresponding to the brightness can be found in curve 1, thereby determining the compensation data of each pixel. The compensation data of all pixels is determined accordingly, and the LCD panel is compensated.

[0111] For example, the grayscale versus brightness curve of the pixel located in the first row and first column is as follows: Figure 6As shown, at this time, the actual gray scale of the pixel can be determined according to the gray scale information of the pixel at each gray scale and the corresponding luminance correction coefficient, for example, the gray scale information of the pixel at the 16th gray scale is 98, and the luminance correction coefficient of the pixel at the 16th gray scale is 100 / 98, then the actual gray scale of the pixel can be determined as 100 at this time, and the actual luminance of the pixel can be determined accordingly, for example, the actual luminance of the pixel is 1000, at this time, the corresponding gray scale of the luminance 1000 in the curve 1 is the 17th gray scale, then the compensation data of the pixel at the 16th gray scale can be determined, that is, the gray scale of the pixel located at the first row and the first column is adjusted to the 17th gray scale when the liquid crystal display panel displays the 16th gray scale picture, and the compensation data of the pixel at other gray scales and the compensation data of other pixels at each gray scale can be determined in the same way, so that the compensation data of the liquid crystal display panel can be obtained, and the liquid crystal display panel is compensated.

[0112] It can be understood that the coordinates in the position data of the pixel in the embodiments of the present application are described by taking row coordinates and column coordinates as examples, but the embodiments of the present application are not limited thereto, and actual coordinates can be described.

[0113] Specifically, the compensation method further includes compensating the light-emitting diode display panel.

[0114] Specifically, in the spliced display device, the compensation method described above can be used to compensate the liquid crystal display panel, the luminance of the light bar in the light-emitting diode display panel is determined by using the front-facing camera to compensate the light bar, so that the uniformity of the spliced display device is better.

[0115] The embodiments of the present application provide a compensation method, after the bind point gray scale image of the liquid crystal display panel and the position data of the liquid crystal display panel are obtained, the position data of each partition of the liquid crystal display panel is determined, the luminance data of each partition corresponding to the bind point gray scale image is obtained, then the luminance data of all pixels of the liquid crystal display panel is determined according to the position data of each partition and the luminance data of each partition, then the gray scale data of all pixels of the liquid crystal display panel corresponding to the bind point gray scale image of the liquid crystal display panel is obtained, then the luminance correction coefficient matrix of the liquid crystal display panel is determined based on the luminance data and the gray scale data, so that when the gray scale data of the liquid crystal display panel is determined by shooting through the camera, the compensation is performed after the correction through the luminance correction coefficient, the compensation data is more accurate, the uniformity of the liquid crystal display panel is improved, and the amount of data stored by the liquid crystal display panel does not need to be increased.

[0116] Meanwhile, the embodiments of the present application provide a compensation device for compensating the spliced display device including the liquid crystal display panel and the light-emitting diode display panel, as shown in the figure, the compensation device 31 includes: Figure 7

[0117] ​The first obtaining module 311 is configured to obtain a binding point gray scale image of the liquid crystal display panel and position data of the liquid crystal display panel; the liquid crystal display panel comprises a plurality of sub-zones.

[0118] The second obtaining module 312 is configured to determine position data of each sub-zone based on the position data of the liquid crystal display panel, and obtain luminance data of each sub-zone corresponding to the binding point gray scale image.

[0119] The first processing module 313 is configured to determine luminance data of all pixels of the liquid crystal display panel according to the position data of each sub-zone and the luminance data of each sub-zone.

[0120] The third obtaining module 314 is configured to obtain gray scale data of all pixels of the liquid crystal display panel corresponding to the binding point gray scale image of the liquid crystal display panel.

[0121] The second processing module 315 is configured to determine a luminance correction coefficient matrix of the liquid crystal display panel based on the luminance data and the gray scale data.

[0122] The compensation module 316 is configured to compensate the liquid crystal display panel according to the luminance correction coefficient matrix.

[0123] In some embodiments, the second obtaining module is configured to obtain a resolution of the liquid crystal display panel, partition the liquid crystal display panel based on the resolution of the liquid crystal display panel, and determine a number of sub-zones; each sub-zone of the liquid crystal display panel is arranged in an array, and the number of pixels in each sub-zone is the same; the position data of each sub-zone is determined based on the position data of the liquid crystal display panel and the number of sub-zones; luminance information of a center position of each sub-zone in the binding point gray scale image is obtained, and the luminance information of the center position of each sub-zone is taken as the luminance data of each sub-zone.

[0124] In some embodiments, the first processing module is configured to determine luminance data of edge pixels of the liquid crystal display panel according to the position data of each sub-zone and the luminance data of each sub-zone; the luminance of other pixels of the liquid crystal display panel is interpolated according to the luminance data of each sub-zone and the luminance data of the edge pixels, and the luminance data of all pixels of the liquid crystal display panel is fitted.

[0125] In some embodiments, the first processing module is configured to fit the luminance data of all pixels of the liquid crystal display panel by using a Spline interpolation method or a linear interpolation method according to the luminance data of each sub-zone and the luminance data of the edge pixels.

[0126] In some embodiments, the compensation device further comprises a first matrix module, configured to determine the luminance data of the center pixel of the liquid crystal display panel based on the luminance data of all the pixels of the liquid crystal display panel; and determine a luminance normalization matrix of the liquid crystal display panel based on the luminance data of all the pixels of the liquid crystal display panel and the luminance data of the center pixel of the liquid crystal display panel.

[0127] In some embodiments, the compensation device further comprises a second matrix module, configured to determine the grayscale data of the center pixel of the liquid crystal display panel based on the grayscale data of all the pixels of the liquid crystal display panel; and determine a grayscale normalization matrix of the liquid crystal display panel based on the grayscale data of all the pixels of the liquid crystal display panel and the grayscale data of the center pixel of the liquid crystal display panel.

[0128] In some embodiments, the second processing module is configured to determine a luminance correction coefficient matrix of the liquid crystal display panel based on the luminance normalization matrix and the grayscale normalization matrix.

[0129] In some embodiments, the compensation module is configured to determine the luminance and grayscale curve of each pixel based on the grayscale data of all the pixels of the liquid crystal display panel; determine the actual luminance of all the pixels of the liquid crystal display panel based on the luminance correction coefficient matrix and the grayscale data of all the pixels of the liquid crystal display panel; determine the compensation data of the liquid crystal display panel based on the actual luminance of all the pixels of the liquid crystal display panel and the luminance and grayscale curve of each pixel, and compensate the liquid crystal display panel using the compensation data of the liquid crystal display panel.

[0130] Meanwhile, as shown in Figure 8 The electronic device 41 is configured to compensate the spliced display device comprising the liquid crystal display panel and the light emitting diode display panel, and the electronic device 41 comprises a memory 412, a processor 411 and a computer program stored in the memory 412 and executable on the processor 411, wherein the processor 411 implements the steps in the compensation method of any of the above embodiments when executing the program.

[0131] Specifically, the electronic device can be a device for inputting compensation data to the display panel or compensating the display panel before the display panel is shipped.

[0132] Specifically, the spliced display device after compensation in the embodiments of the present application stores the display data after compensation.

[0133] Meanwhile, the embodiment of the present application provides a computer readable storage medium, wherein a plurality of instructions are stored, the instructions can be loaded by a processor to implement the steps in the compensation method of any of the above embodiments.

[0134] According to the above embodiments, it is known that:

[0135] The embodiment of the present application provides a compensation method, a compensation device and an electronic device; the compensation method determines the position data of each subzone of the liquid crystal display panel after obtaining the binding point gray scale image of the liquid crystal display panel and the position data of the liquid crystal display panel, and obtains the brightness data of each subzone corresponding to the binding point gray scale image, then determines the brightness data of all pixels of the liquid crystal display panel according to the position data of each subzone and the brightness data of each subzone, then obtains the gray scale data of all pixels of the liquid crystal display panel corresponding to the binding point gray scale image of the liquid crystal display panel, and then determines the brightness correction coefficient matrix of the liquid crystal display panel based on the brightness data and the gray scale data, so that when the gray scale data of the liquid crystal display panel is determined by shooting with the camera, the compensation is performed after the correction by the brightness correction coefficient, so that the compensation data is more accurate, the uniformity of the liquid crystal display panel is improved, and the amount of data stored by the liquid crystal display panel does not need to be increased.

[0136] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0137] The above describes in detail the compensation method, the compensation device and the electronic device provided by the embodiment of the present application, and the principle and implementation mode of the present application are described by applying specific examples; the above embodiment is only used to help understand the technical solution and the core idea of the present application; those skilled in the art should understand that the technical solution recorded in the above embodiments can 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 solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A compensation method for compensating a splicing display device including a liquid crystal display panel and a light-emitting diode display panel, characterized in that, include: Acquire the grayscale image of the liquid crystal display panel and the position data of the liquid crystal display panel; wherein the liquid crystal display panel includes multiple partitions; The position data of each partition is determined based on the position data of the liquid crystal display panel, and the brightness data of each partition corresponding to the bound-point grayscale image is obtained. Based on the position data and brightness data of each partition, the brightness data of all pixels of the liquid crystal display panel are determined; Acquire the grayscale data of all pixels of the liquid crystal display panel corresponding to the grayscale image of the bound dots of the liquid crystal display panel; Based on the brightness data and the grayscale data, the brightness correction coefficient matrix of the liquid crystal display panel is determined; The liquid crystal display panel is compensated according to the brightness correction coefficient matrix.

2. The compensation method as described in claim 1, characterized in that, The step of determining the position data of each partition based on the position data of the liquid crystal display panel and obtaining the brightness data of each partition corresponding to the bound-dot grayscale image includes: The resolution of the liquid crystal display panel is obtained, and the liquid crystal display panel is divided into partitions based on the resolution, and the number of partitions is determined; each partition array of the liquid crystal display panel is set, and the number of pixels in each partition is the same; The position data of each partition is determined based on the position data of the liquid crystal display panel and the number of partitions. The brightness information of the center position of each partition in the bound-point grayscale image is obtained, and the brightness information of the center position of each partition is used as the brightness data of each partition.

3. The compensation method as described in claim 1, characterized in that, The step of determining the brightness data of all pixels of the liquid crystal display panel based on the position data and brightness data of each partition includes: The brightness data of the edge pixels of the liquid crystal display panel are determined based on the position data and brightness data of each partition. Based on the brightness data of each partition and the brightness data of the edge pixels, the brightness of other pixels of the liquid crystal display panel is interpolated to obtain the brightness data of all pixels of the liquid crystal display panel.

4. The compensation method as described in claim 3, characterized in that, The step of interpolating the brightness of other pixels of the liquid crystal display panel based on the brightness data of each partition and the brightness data of the edge pixels to obtain the brightness data of all pixels of the liquid crystal display panel includes: Based on the brightness data of each partition and the brightness data of the edge pixels, the brightness data of all pixels of the liquid crystal display panel are obtained by fitting using the spline interpolation method or the linear interpolation method.

5. The compensation method as described in claim 1, characterized in that, After the step of determining the brightness data of all pixels of the liquid crystal display panel based on the position data and brightness data of each partition, the method further includes: Based on the brightness data of all pixels of the liquid crystal display panel, determine the brightness data of the center pixel of the liquid crystal display panel; The brightness normalization matrix of the liquid crystal display panel is determined based on the brightness data of all pixels of the liquid crystal display panel and the brightness data of the center pixel of the liquid crystal display panel.

6. The compensation method as described in claim 5, characterized in that, After the step of acquiring the grayscale data of all pixels of the liquid crystal display panel corresponding to the bound-dot grayscale image of the liquid crystal display panel, the method further includes: Based on the grayscale data of all pixels of the liquid crystal display panel, determine the grayscale data of the center pixel of the liquid crystal display panel; The grayscale normalization matrix of the liquid crystal display panel is determined based on the grayscale data of all pixels of the liquid crystal display panel and the grayscale data of the center pixel of the liquid crystal display panel.

7. The compensation method as described in claim 6, characterized in that, The step of determining the brightness correction coefficient matrix of the liquid crystal display panel based on the brightness data and the grayscale data includes: The brightness correction coefficient matrix of the liquid crystal display panel is determined based on the brightness normalization matrix and the grayscale normalization matrix.

8. The compensation method as described in claim 1, characterized in that, The step of compensating the liquid crystal display panel according to the brightness correction coefficient matrix includes: The brightness and grayscale curves of each pixel are determined based on the grayscale data of all pixels in the liquid crystal display panel. Based on the brightness correction coefficient matrix and the grayscale data of all pixels of the liquid crystal display panel, the actual brightness of all pixels of the liquid crystal display panel is determined; Based on the actual brightness of all pixels of the liquid crystal display panel and the brightness-grayscale curve of each pixel, the compensation data of the liquid crystal display panel is determined, and the compensation data of the liquid crystal display panel is used to compensate the liquid crystal display panel.

9. A compensation device for compensating a splicing display device including a liquid crystal display panel and a light-emitting diode display panel, characterized in that, The compensation device includes: The first acquisition module is used to acquire the grayscale image of the liquid crystal display panel and the position data of the liquid crystal display panel; wherein, the liquid crystal display panel includes multiple partitions; The second acquisition module is used to determine the position data of each partition based on the position data of the liquid crystal display panel, and to acquire the brightness data of each partition corresponding to the grayscale image of the bound dots. The first processing module is used to determine the brightness data of all pixels of the liquid crystal display panel based on the position data of each partition and the brightness data of each partition. The third acquisition module is used to acquire grayscale data of all pixels of the liquid crystal display panel corresponding to the grayscale image of the bound dots of the liquid crystal display panel. The second processing module is used to determine the brightness correction coefficient matrix of the liquid crystal display panel based on the brightness data and the grayscale data. The compensation module is used to compensate the liquid crystal display panel according to the brightness correction coefficient matrix.

10. An electronic device for compensating a splicing display device including a liquid crystal display panel and a light-emitting diode display panel, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps in the compensation method as described in any one of claims 1 to 8.

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