Chromatic aberration correction method, device and equipment for spliced panel and storage medium

Abstract

The invention discloses a color difference correction method, device and equipment for a spliced panel and a storage medium. The color difference correction method comprises the steps of obtaining brightness and chrominance feature information of all display panels to be spliced, obtaining brightness and chrominance compensation data of all the display panels based on the brightness and chrominance feature information of all the display panels and the splicing sequence of all the display panels, and conducting brightness and chrominance compensation on all the display panels based on the brightness and chrominance compensation data, therefore, the color difference of the spliced display panels is corrected. According to the method and the device, the compensation data can be directly calculated based on the brightness and chrominance characteristic data and the splicing sequence during splicing, the processing process is simple and effective, the color difference problem existing after the display panels produced by different batches of operation are spliced can be improved, the mass productivity of the spliced panels and the replaceability of the display panels in the spliced panels are improved, and the splicing efficiency is improved. And therefore, the actual splicing requirement can be met more flexibly.

Description

Technical Field

[0001] The present application relates to the field of display control technology, and in particular to a method, device, equipment and storage medium for color difference correction of a spliced ​​panel. Background Art

[0002] The brightness and color uniformity of display panels produced in the same batch is usually good, but display panels produced in different batches may have brightness and color differences. When multiple display panels produced in different batches are spliced ​​together according to display requirements, the resulting spliced ​​panels may have color differences that can be observed by the human eye, thereby affecting the display effect of the spliced ​​panels. Therefore, it is necessary to correct the color difference of the spliced ​​panels.

[0003] The traditional calibration method is to perform Demura (i.e., remove the defect of uneven brightness and color) process on the entire spliced ​​panel. However, when it is necessary to replace some display panels in the spliced ​​panel or adjust the arrangement order of each display panel in the spliced ​​panel, it is necessary to perform Demura process on the adjusted spliced ​​panel again. Therefore, the processing process is relatively cumbersome, and the display panel is less replaceable during the splicing process, which cannot meet the actual splicing requirements. Summary of the invention

[0004] The embodiments of the present application provide a method, device, equipment and storage medium for color difference correction of a spliced ​​panel to solve the technical problem that the existing display panels have poor replaceability during the splicing process.

[0005] In order to solve the above technical problems, the embodiments of the present application disclose the following technical solutions:

[0006] In a first aspect, a method for correcting chromatic aberration of a spliced ​​panel is provided, comprising:

[0007] Obtaining brightness and chromaticity characteristic information of each display panel to be spliced;

[0008] Based on the brightness and chromaticity characteristic information of each display panel and the splicing order of each display panel, acquiring brightness and chromaticity compensation data of each display panel;

[0009] Brightness and chromaticity compensation is performed on each of the display panels based on the brightness and chromaticity compensation data to correct the color difference of each of the spliced ​​display panels.

[0010] In combination with the first aspect, before obtaining the brightness and chromaticity characteristic information of each display panel to be spliced, the method further includes:

[0011] Constructing brightness and chromaticity characteristic information of each display panel;

[0012] The brightness and chromaticity characteristic information of each display panel and the identifier of the corresponding display panel are stored in a preset storage unit.

[0013] In combination with the first aspect, the step of constructing the brightness and chromaticity characteristic information of each display panel includes:

[0014] For each display panel, acquiring brightness information and chromaticity information of the display panel;

[0015] Acquire brightness and chromaticity data of each pixel on the display panel;

[0016] The brightness and chromaticity data of each of the pixel points, as well as the brightness information and chromaticity information of the display panel, are determined as brightness and chromaticity characteristic information of the corresponding display panel.

[0017] In combination with the first aspect, obtaining brightness information and chromaticity information of the display panel includes:

[0018] If there is a color difference on the display panel that exceeds a preset threshold, the display panel is divided into a plurality of candidate areas, and the color difference in each of the candidate areas is less than the preset threshold;

[0019] The brightness information and the chromaticity information of each candidate area are obtained.

[0020] In combination with the first aspect, each of the display panels includes a first area and a second area, the second area is an area adjacent to other display panels after being spliced ​​in the splicing sequence, and the first area is an area not adjacent to other display panels after being spliced ​​in the splicing sequence;

[0021] Based on the brightness and chromaticity characteristic information of each display panel and the splicing order of each display panel, the brightness and chromaticity compensation data of each display panel is obtained, including:

[0022] For the first area on each of the display panels, based on a first color difference between the brightness and chromaticity data of each pixel point in the first area and a preset brightness and chromaticity target value of the corresponding display panel, acquiring brightness and chromaticity compensation data of the first area, so as to correct the first color difference;

[0023] For the second area on each display panel, based on the second color difference between the preset brightness and chromaticity target values ​​of the two display panels adjacent to the second area, and the brightness and chromaticity data of each pixel on the second area, the brightness and chromaticity compensation data of the second area is obtained to perform transition processing on the second color difference.

[0024] In combination with the first aspect, the step of obtaining the brightness and chromaticity characteristic information of each display panel to be spliced ​​includes:

[0025] Obtaining the identifiers of the display panels to be spliced;

[0026] Based on the identifiers of the display panels to be spliced, brightness and chromaticity feature information corresponding to the identifiers is acquired from the storage unit.

[0027] In combination with the first aspect, performing brightness and chromaticity compensation on each display panel based on the brightness and chromaticity compensation data includes:

[0028] Based on the brightness and chromaticity compensation data, the RGB gamma register data of the corresponding display panel is adjusted.

[0029] In a second aspect, a chromatic aberration correction device for a spliced ​​panel is provided to implement the chromatic aberration correction method for the spliced ​​panel. The chromatic aberration correction device for the spliced ​​panel includes:

[0030] A feature information acquisition module, used to acquire brightness and chromaticity feature information of each display panel to be spliced;

[0031] A compensation data acquisition module, used to acquire brightness and chromaticity compensation data of each display panel based on the brightness and chromaticity characteristic information of each display panel and the splicing order of each display panel;

[0032] The color difference correction processing module is used to perform brightness and color compensation on each display panel based on the brightness and color compensation data to correct the color difference of each display panel after splicing.

[0033] In a third aspect, an electronic device is provided, comprising a processor and a memory; wherein the memory is used to store a computer program, and the computer program is loaded and executed by the processor to implement the chromatic aberration correction method of the aforementioned splicing panel, or the processor adopts the chromatic aberration correction device of the aforementioned splicing panel.

[0034] In a fourth aspect, a storage medium is provided, wherein the storage medium stores computer executable instructions, and when the computer executable instructions are loaded and executed by a processor, the color difference correction method of the aforementioned spliced ​​panel is implemented.

[0035] One of the above technical solutions has the following advantages or beneficial effects:

[0036] Compared with the prior art, the present application provides a method for correcting chromatic aberration of a spliced ​​panel, comprising: obtaining brightness and chromaticity characteristic information of each display panel to be spliced, obtaining brightness and chromaticity compensation data of each display panel based on the brightness and chromaticity characteristic information of each display panel and the splicing order of each display panel, and performing brightness and chromaticity compensation on each display panel based on the brightness and chromaticity compensation data to correct the chromatic aberration of each display panel after splicing. The color difference correction method for spliced ​​panels provided in the present application can directly calculate the brightness and chromaticity compensation data of each display panel based on the brightness and chromaticity characteristic information of each display panel and the splicing order during splicing, and directly perform brightness and chromaticity compensation on the display panel using the brightness and chromaticity compensation data, thereby correcting the color difference of the spliced ​​panel. When the splicing order of the display panels needs to be changed, the compensation data can be recalculated based on the new splicing order, and compensation can be performed using the new compensation data. The entire process is to calculate the compensation data based on the brightness and chromaticity characteristic data and the splicing order. The processing process is simple and effective, and can improve the color difference problem existing in the display panels produced in different batches after splicing, improve the mass producibility of the spliced ​​panels and the replaceability of the display panels in the spliced ​​panels, thereby being able to more flexibly meet the actual splicing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 A schematic diagram of an application scenario of the method for correcting chromatic aberration of a spliced ​​panel provided in an embodiment of the present application;

[0039] Figure 2 It is a schematic diagram of the overall process of the color difference correction method of the spliced ​​panel according to the embodiment of the present application;

[0040] Figure 3 An exemplary schematic diagram of a spliced ​​panel according to an embodiment of the present application;

[0041] Figure 4 Another exemplary schematic diagram of a spliced ​​panel according to an embodiment of the present application;

[0042] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of one of the candidate areas B2 of the display panel A2;

[0043] Figure 6 It is a structural schematic diagram of a chromatic aberration correction device for a spliced ​​panel according to an embodiment of the present application;

[0044] Figure 7 A schematic diagram of the structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0046] The traditional method for correcting the chromatic aberration of spliced ​​panels is to perform Demura process on the entire spliced ​​panel, that is, after obtaining the captured image of the spliced ​​panel, calculate the Demura compensation data based on the captured image of the spliced ​​panel, and use the calculated Demura compensation data to perform display compensation on the spliced ​​panel. This not only has high requirements on the existing screen design and splicing accuracy, but also because the Demura process processing is relatively cumbersome, when it is necessary to replace some display panels in the spliced ​​panel or adjust the arrangement order of each display panel in the spliced ​​panel, it is necessary to re-execute the Demura process processing, resulting in a large waste of time and resources, thereby resulting in poor replaceability of the display panels in the spliced ​​panel, which cannot meet the actual splicing needs.

[0047] In view of the above-mentioned problems currently existing, the present application proposes a chromatic aberration correction scheme for spliced ​​panels, which realizes the calculation of compensation data directly based on brightness and chromaticity feature data and splicing order, effectively simplifies the chromatic aberration correction process of the spliced ​​panels, improves the mass producibility of the spliced ​​panels and the replaceability of the display panels in the spliced ​​panels, and can more flexibly meet various splicing requirements.

[0048] It should be noted that, in the embodiment of the present application, the brightness and chromaticity data includes brightness data and chromaticity data.

[0049] The embodiments of the present application provide a method, device, equipment and storage medium for color difference correction of a spliced ​​panel, which will be described below with reference to the accompanying drawings.

[0050] The color difference correction method of the spliced ​​panel provided in the embodiment of the present application can be applied to Figure 1 The application scenario shown in FIG. The application scenario includes an electronic device 101 and a splicing panel 102. The electronic device 101 may be an electronic device with a data processing function, and may perform color correction on the splicing panel 102. The electronic device 101 may be a smart phone, a tablet computer, a laptop computer, a desktop computer, a wearable device, etc. The splicing panel 102 may be a panel with a display function. Figure 1 As shown, the splicing panel 102 is formed by splicing at least one display panel. The display panel can be various types of display panels, such as LCD (liquid crystal display panel), LED (light emitting diode panel), mini LED (micro light emitting diode panel), OLED (organic laser display panel), etc. The electronic device 101 can communicate with each display panel separately, or communicate with the splicing panel 102 as a whole. In a specific application scenario, the electronic device 101 obtains the brightness and chromaticity characteristic information of each display panel of the splicing panel 102, obtains the brightness and chromaticity compensation data of each display panel based on the brightness and chromaticity characteristic information of each display panel and the splicing order of each display panel, and performs brightness and chromaticity compensation on each display panel based on the brightness and chromaticity compensation data to correct the color difference of each display panel after splicing, and realizes the color difference correction of the splicing panel 102, so that there is no need to perform the Demura process on the splicing panel 102, effectively simplifying the color difference correction process of the splicing panel 102, and improving the mass production of the splicing panel 102 and the replaceability of the display panel in the splicing panel 102.

[0051] See also Figure 2 , Figure 2 The overall process of the color difference correction method of the spliced ​​panel in the embodiment of the present application is illustrated. The color difference correction method of the spliced ​​panel includes the following steps:

[0052] 201: Obtain brightness and chromaticity characteristic information of each display panel to be spliced.

[0053] In some embodiments, before executing step 201, the color difference correction method of the spliced ​​panel may further include the following steps:

[0054] Step 1: construct brightness and chromaticity feature information of each display panel.

[0055] In some embodiments, the brightness and chromaticity characteristic information of each display panel may be constructed in the following manner:

[0056] The first step is to obtain the brightness information and chromaticity information of each display panel.

[0057] In some examples, if there is a color difference on the display panel that exceeds a preset threshold, the display panel may be divided into a plurality of candidate areas, and brightness information and chromaticity information of each candidate area may be obtained.

[0058] Among them, the color difference in each candidate area is less than the preset threshold. It should be noted that the color difference of the preset threshold refers to the color difference that can be observed by the human eye, which can be set according to actual needs, and the embodiment of the present application does not specifically limit this. For example: in actual experiments, the brightness between the two display panels is the same, x is the same, and the difference in y is 6‰, there is a visible color difference to the human eye, and the actual calculated color difference is 2.96, which can be captured by the human eye. The difference, x, y refers to the data for measuring color in the CIE1931XYZ colorimetry system, which can be specifically calculated by the three color stimulus values ​​X, Y, and Z of the color.

[0059] Specifically, the display panel can be divided into m×n candidate areas according to the brightness and chromaticity uniformity of the display panel, and the brightness information of each candidate area can be obtained by using a light gun, and the chromaticity information of each candidate area can be obtained by using a colorimeter. Among them, m is the number of divisions in the length direction of the display panel, and n is the number of divisions in the width direction of the display panel, and m and n can be the same.

[0060] By dividing the display panel into a plurality of candidate areas in the above manner, the distribution trend of brightness and chromaticity on the display panel can be obtained, which is beneficial to subsequent color difference correction calculation and can further improve the display effect of the spliced ​​panel.

[0061] In other examples, the brightness and chromaticity uniformity test may not be performed, and each display panel may be directly divided into a plurality of candidate regions, and the brightness information and chromaticity information of each region may be obtained. The embodiment of the present application does not specifically limit this.

[0062] The second step is to obtain the brightness and chromaticity data of each pixel on the display panel.

[0063] Specifically, the display panel may be photographed by a camera to obtain brightness and chromaticity data of each pixel, such as relative Lvxy data, where Lv represents the brightness value, and x and y represent relative values ​​of color coordinates.

[0064] In the third step, the brightness and chromaticity data of each pixel point, as well as the brightness information and chromaticity information of the display panel, are determined as brightness and chromaticity characteristic information of the corresponding display panel.

[0065] By constructing the brightness and chromaticity characteristic information of each display panel in the above manner, taking into account both overall information and local information, more comprehensive and accurate data can be obtained, which is conducive to subsequent more flexible color difference compensation calculation and improves the color difference correction effect of the spliced ​​panel.

[0066] In other embodiments, the brightness and chromaticity characteristic information of each display panel may be constructed in other ways, for example, directly using the brightness and chromaticity data of each pixel as the brightness and chromaticity characteristic information of each display panel, which is not specifically limited in the embodiments of the present application.

[0067] Step 2: storing the brightness and chromaticity characteristic information of each display panel together with the identifier of the corresponding display panel in a preset storage unit.

[0068] Specifically, the identifier of the display panel may be a screen ID (Identity Document) of the display panel. The preset storage unit may be a computer hardware storage unit or a cloud storage unit.

[0069] Through the above method, a database can be offline in advance, and the brightness and color characteristic information of all display panels shipped out of the factory can be stored in advance. When the display panels are spliced ​​in different combinations, the data of the corresponding display panels can be directly called to perform color difference correction calculations, which greatly simplifies the processing flow and improves the flexibility of splicing and the replaceability of display panels.

[0070] In some embodiments, when a database of brightness and chromaticity characteristic information of display panels is stored offline in advance, when executing step 201, the identifiers of each display panel to be spliced ​​can be obtained, and then based on the identifiers of each display panel to be spliced, the brightness and chromaticity characteristic information corresponding to each identifier can be obtained from the storage unit.

[0071] In this way, the required data can be obtained more conveniently and the search efficiency can be improved.

[0072] 202: Based on the brightness and chromaticity characteristic information of each display panel and the splicing order of each display panel, obtain brightness and chromaticity compensation data of each display panel.

[0073] Each display panel may include a first area and a second area, the second area being an area adjacent to other display panels after being spliced ​​in a splicing order, and the first area being an area not adjacent to other display panels after being spliced ​​in a splicing order. That is, the display panel may be divided into a first area not adjacent to other display panels and a second area adjacent to other display panels according to the splicing condition of the display panel with other display panels after being spliced ​​in a splicing order.

[0074] See also Figure 3 , Figure 3 An example diagram of a spliced ​​panel in an embodiment of the present application is shown. In some embodiments, each display panel A i (For ease of presentation, Figure 3 In the example of three display panels A1, A2, and A3, and the splicing order is display panels A1, A2, and A3), if they are not divided into multiple candidate areas, the following steps can be used to obtain the display panels A1, A2, and A3. i Brightness and chromaticity compensation data:

[0075] Step 1: for each display panel A i The first area A i1 , based on the first area A i1 The brightness and chromaticity data of each pixel point are related to the corresponding display panel A i The first color difference of the preset brightness and chromaticity target value is obtained to obtain the first area A i1 Brightness and chromaticity compensation data is obtained to correct the first color difference.

[0076] In some examples, for the first area A i1 , can correspond to display panel A i The preset brightness and chromaticity target value is used as a reference, and the color difference range that can be observed by the human eye is used as the adjustment threshold to determine the target range of brightness and chromaticity data. The minimum difference between the brightness and chromaticity data of each pixel and the target range of brightness and chromaticity data is determined as the brightness and chromaticity compensation data of each pixel. Specifically, the ΔE_2000 between the brightness and chromaticity data of each pixel and the preset brightness and chromaticity target value can be calculated. Among them, the calculation of the color difference ΔE_2000 is a technology well known to those skilled in the art and will not be described in detail here. In this way, after compensating each pixel, the brightness and chromaticity data of each pixel are all within the target range, so that the first area A i1 There is no color difference visible to the human eye.

[0077] In some other examples, for the first area A i1 , can be used to correspond to display panel A i The preset brightness and chromaticity target value is used as a reference to determine the difference between the brightness and chromaticity data of each pixel and the preset brightness and chromaticity target value, and the difference is determined as the brightness and chromaticity compensation data of each pixel. In this way, after compensating each pixel, the brightness and chromaticity data of each pixel can be kept absolutely consistent, so that the first area A i1 There is no color difference.

[0078] It should be noted that the display panel A i The preset brightness and chromaticity target values ​​can be displayed on the display panel A i The average value of the brightness and chromaticity data of each pixel in the central area is used as the display panel A iThe preset brightness and chromaticity target values ​​can also be displayed on the display panel A i The brightness data and chromaticity data of the central area are used as the display panel A i The preset brightness and chromaticity target value may also be set to other required values, which is not specifically limited in the embodiments of the present application.

[0079] Step 2: for each display panel A i The second area A i2 , based on the second area A i2 Two adjacent display panels A i The second color difference between the preset brightness and chromaticity target values, and the second area A i2 The brightness and chromaticity data of each pixel on the second area A are obtained i2 Brightness and chromaticity compensation data is used to perform transition processing on the second color difference.

[0080] In some examples, for the second area A i2 , based on the second area A i2 Display panel A i The preset brightness and chromaticity target value of the second area A i2 Another adjacent display panel A i The preset brightness and chromaticity target value is determined, and the second color difference is determined based on the second color difference and the second area A i2 The brightness and chromaticity data of each pixel on the second area A are obtained by transition processing. i2 The brightness and color compensation data of each pixel on the second area A is used to eliminate the i2 Two adjacent display panels A i The brightness and chromaticity between the two regions change suddenly, forming a uniform transition visual effect. The specific method of transition processing is based on the second color difference and the second area A. i2 The brightness and chromaticity data of each pixel is used to determine the brightness and chromaticity compensation data, with the goal of eliminating the visual effect of sudden changes in brightness and chromaticity. There are multiple ways to set the brightness and chromaticity compensation data of each pixel, and those skilled in the art can determine it as needed. The embodiments of the present application do not make specific limitations on this.

[0081] By correcting the color difference of the spliced ​​panels in the above manner, a uniform transition visual effect can be formed, which can not only eliminate sudden color differences, but also improve the display effect, reduce the difficulty of color difference correction, and make it more convenient to implement.

[0082] See also Figure 4 , Figure 4 Another example diagram of the spliced ​​panel of the embodiment of the present application is shown. In some other embodiments, each display panel A i (For ease of presentation, Figure 4In the example, three display panels A1, A2, and A3 are used for display, and the splicing order is display panels A2, A3, and A1) are divided into multiple candidate areas B j (For ease of presentation, Figure 4 In the case where the display panel A is divided into four candidate areas B1, B2, B3, and B4 as an example, the following steps can be performed to obtain the display panel A i Brightness and chromaticity compensation data:

[0083] Please also read Figure 4 and Figure 5 , Figure 5 Indicated Figure 4 FIG. 1 is an enlarged structural diagram of one of the candidate regions B2 of the display panel A2. j The third area B may be included j1 and the fourth area B j2 . Third Area B j1 After being spliced ​​in the splicing order, it is not combined with other candidate areas B j Adjacent area, fourth area B j2 To splice with other candidate areas B in the splicing order j Adjacent area.

[0084] For each display panel A i Alternative area B j The third area B j1 , can be based on the third area B j1 The brightness and chromaticity data of each pixel point and the corresponding candidate area B j The third color difference of the preset brightness and chromaticity target value is obtained to obtain the third area B j1 The brightness and chromaticity compensation data is used to correct the third color difference. The specific implementation can refer to the above step 1, which will not be repeated here.

[0085] For each display panel A i Alternative area B j The fourth area B j2 , can be based on the fourth area B j2 Two adjacent candidate areas B j The fourth color difference of the preset brightness and chromaticity target value, and the fourth area B j2 The brightness and chromaticity data of each pixel on the fourth area B are obtained j2 The brightness and chromaticity compensation data is used to perform transition processing on the fourth color difference. The specific implementation can refer to the above step 2, which will not be repeated here.

[0086] In other embodiments, each display panel A i Divided into multiple candidate areas B jIn the case of i Alternative area B j The fourth area B j2 , based on the fourth area B j2 Two adjacent candidate areas B j The fifth color difference of the brightness and chromaticity data, and the fourth area B j2 The brightness and chromaticity data of each pixel on the fourth area B are obtained j2 The brightness and chromaticity compensation data is used to perform transition processing on the fifth color difference. The specific implementation can refer to the above step 2, which will not be repeated here.

[0087] Through the above method, each display panel A is obtained i Brightness and chromaticity compensation data can be calculated based on the brightness of each display panel A i Different splicing orders can be used to adjust different compensation schemes to form absolutely consistent brightness and color, or to form a transitional visual effect without visible sudden color difference. The brightness and color compensation method is very flexible, and the compensation difficulty is greatly reduced, which can greatly improve the display panel A i The interchangeability during splicing can flexibly meet the actual splicing needs.

[0088] 203: Perform brightness and chromaticity compensation on each display panel based on the brightness and chromaticity compensation data to correct the color difference of each display panel after splicing.

[0089] In some embodiments, the RGB (red, yellow, and blue) gamma register data of the corresponding display panel can be adjusted based on the brightness and chromaticity compensation data. Specifically, the RGB gamma register is a storage unit that controls brightness and chromaticity, and any relevant technology can be used to adjust the RGB gamma register data, which is not specifically limited in the embodiments of the present application.

[0090] It can be understood that the method of the embodiment of the present application can calculate compensation data based on brightness and chromaticity characteristic data and splicing order. The processing process is simple and effective, and can significantly improve the color difference problem existing after splicing of display panels produced in different batches, improve the mass producibility of the spliced ​​panels and the replaceability of the display panels in the spliced ​​panels, and thus can more flexibly meet the actual splicing needs.

[0091] Accordingly, see Figure 6 , Figure 6 The structure diagram of the chromatic aberration correction device of the spliced ​​panel of the embodiment of the present application is shown. The chromatic aberration correction device of the spliced ​​panel provided by the embodiment of the present application can implement the chromatic aberration correction method of the spliced ​​panel disclosed in any of the above embodiments, and the device includes: a feature information acquisition module 601, a compensation data acquisition module 602 and a chromatic aberration correction processing module 603.

[0092] The characteristic information acquisition module 601 is used to acquire the brightness and chromaticity characteristic information of each display panel to be spliced.

[0093] The compensation data acquisition module 602 is used to acquire the brightness and chromaticity compensation data of each display panel based on the brightness and chromaticity characteristic information of each display panel and the splicing order of each display panel.

[0094] The color difference correction processing module 603 is used to perform brightness and color compensation on each display panel based on the brightness and color compensation data to correct the color difference of each display panel after splicing.

[0095] In some embodiments, before the feature information acquisition module 601, the chromatic aberration correction device for the spliced ​​panel further includes:

[0096] The characteristic information construction module is used to construct the brightness and chromaticity characteristic information of each display panel, and store the brightness and chromaticity characteristic information of each display panel together with the identification of the corresponding display panel in a preset storage unit.

[0097] In some embodiments, the feature information building module includes:

[0098] The first information acquisition submodule is used to acquire brightness information and chromaticity information of each display panel.

[0099] The second information acquisition submodule is used to acquire brightness and chromaticity data of each pixel on the display panel.

[0100] The construction submodule is used to determine the brightness and chromaticity data of each pixel point, as well as the brightness information and chromaticity information of the display panel, as brightness and chromaticity characteristic information of the corresponding display panel.

[0101] In some embodiments, the first information acquisition submodule includes:

[0102] The area division unit is used to divide the display panel into a plurality of candidate areas if there is a color difference exceeding a preset threshold on the display panel, and the color difference in each candidate area is less than the preset threshold.

[0103] The region information construction unit is used to obtain the brightness information and chromaticity information of each candidate region.

[0104] In some embodiments, each display panel includes a first area and a second area, the second area is an area adjacent to other display panels after being spliced ​​in a splicing order, and the first area is an area not adjacent to other display panels after being spliced ​​in a splicing order. The compensation data acquisition module 602 includes:

[0105] The first area compensation submodule is used to obtain brightness and chromaticity compensation data of the first area on each display panel based on the first color difference between the brightness and chromaticity data of each pixel point in the first area and the preset brightness and chromaticity target value of the corresponding display panel, so as to correct the first color difference.

[0106] The second area compensation submodule is used to obtain brightness and chromaticity compensation data of the second area for the second area on each display panel based on the second color difference between the preset brightness and chromaticity target values ​​of two display panels adjacent to the second area and the brightness and chromaticity data of each pixel point on the second area, so as to perform transition processing on the second color difference.

[0107] In some embodiments, the feature information acquisition module 601 includes:

[0108] The identification acquisition submodule is used to acquire the identification of each display panel to be spliced.

[0109] The search submodule is used to obtain brightness and chromaticity characteristic information corresponding to each identification from the storage unit based on the identification of each display panel to be spliced.

[0110] In some embodiments, the chromatic aberration correction processing module 603 includes:

[0111] The adjustment submodule is used to adjust the RGB gamma register data of the corresponding display panel based on the brightness and chromaticity compensation data.

[0112] The chromatic aberration correction device for the above-mentioned spliced ​​panel can calculate compensation data based on brightness and chromaticity characteristic data and splicing order. The processing process is simple and effective, and can significantly improve the chromatic aberration problem existing after splicing of display panels produced in different batches, improve the mass producibility of the spliced ​​panel and the replaceability of the display panel in the spliced ​​panel, thereby being able to more flexibly meet actual splicing needs.

[0113] Accordingly, see Figure 7 , Figure 7 The structure diagram of the electronic device of the embodiment of the present application is illustrated. The electronic device may specifically include: at least one processor 71, at least one memory 72, a power supply 73, a communication interface 74, an input / output interface 75, and a communication bus 76. The memory 72 is used to store a computer program, and the computer program is loaded and executed by the processor 71 to implement the relevant steps in the color difference correction method of the spliced ​​panel disclosed in any of the aforementioned embodiments. Alternatively, the processor 71 may adopt the color difference correction device of the spliced ​​panel disclosed in any of the aforementioned embodiments.

[0114] In this embodiment, the power supply 73 is used to provide working voltage for each hardware device on the electronic device; the communication interface 74 can create a data transmission channel between the electronic device and the external device, and the communication protocol it follows is any communication protocol that can be applied to the technical solution of the present application, and is not specifically limited here; the input and output interface 75 is used to obtain external input data or output data to the outside world, and its specific interface type can be selected according to specific application needs and is not specifically limited here.

[0115] In addition, the memory 72, as a carrier for resource storage, can be a read-only memory, a random access memory, a disk or an optical disk, etc. The resources stored thereon include an operating system 721, a computer program 722, and data 723, etc. The storage method can be temporary storage or permanent storage. Among them, the operating system 721 is used to manage and control various hardware devices and computer programs 722 on the electronic device to realize the calculation and processing of the data 723 in the memory 72 by the processor 71, which can be Windows Server, Netware, Unix, Linux, etc. In addition to including a computer program that can be used to complete the display compensation method of the splicing panel disclosed in any of the aforementioned embodiments, the computer program 722 can further include a computer program that can be used to complete other specific tasks. In addition to data such as application update information, the data 723 can also include data such as application developer information.

[0116] The electronic device may be a terminal, and the terminal may specifically include but is not limited to a spliced ​​screen, a smart TV, a smart phone, a tablet computer, a laptop computer or a desktop computer, etc.

[0117] Accordingly, the embodiment of the present application further provides a storage medium, in which computer executable instructions are stored, and when the computer executable instructions are loaded and executed by the processor, the color difference correction method of the spliced ​​panel disclosed in any of the above embodiments is implemented. For the specific steps of the method, reference can be made to the corresponding contents disclosed in the above embodiments, and no further description will be given here.

[0118] The above is a detailed introduction to the chromatic aberration correction method, device, equipment and storage medium for a spliced ​​panel provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with 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 method for correcting chromatic aberration of a spliced ​​panel, characterized in that: include: Obtaining brightness and chromaticity characteristic information of each display panel to be spliced; Based on the brightness and chromaticity characteristic information of each display panel and the splicing order of each display panel, acquiring brightness and chromaticity compensation data of each display panel; Brightness and chromaticity compensation is performed on each of the display panels based on the brightness and chromaticity compensation data to correct the color difference of each of the spliced ​​display panels.

2. The method for correcting chromatic aberration of a spliced ​​panel according to claim 1, characterized in that: Before obtaining the brightness and chromaticity characteristic information of each display panel to be spliced, the method further includes: Constructing brightness and chromaticity characteristic information of each display panel; The brightness and chromaticity characteristic information of each display panel and the identifier of the corresponding display panel are stored in a preset storage unit.

3. The method for correcting chromatic aberration of a spliced ​​panel according to claim 2, characterized in that: The step of constructing the brightness and chromaticity characteristic information of each display panel includes: For each display panel, obtaining brightness information and chromaticity information of the display panel; Acquire brightness and chromaticity data of each pixel on the display panel; The brightness and chromaticity data of each of the pixel points, as well as the brightness information and chromaticity information of the display panel, are determined as brightness and chromaticity characteristic information of the corresponding display panel.

4. The method for correcting chromatic aberration of a spliced ​​panel according to claim 3, characterized in that: Acquiring brightness information and chromaticity information of the display panel, including: If there is a color difference on the display panel that exceeds a preset threshold, the display panel is divided into a plurality of candidate areas, and the color difference in each of the candidate areas is less than the preset threshold; The brightness information and the chromaticity information of each candidate area are obtained.

5. The method for correcting chromatic aberration of a spliced ​​panel according to claim 3, characterized in that: Each of the display panels comprises a first area and a second area, the second area being an area adjacent to other display panels after being spliced ​​in the splicing sequence, and the first area being an area not adjacent to other display panels after being spliced ​​in the splicing sequence; Based on the brightness and chromaticity characteristic information of each display panel and the splicing order of each display panel, the brightness and chromaticity compensation data of each display panel is obtained, including: For the first area on each of the display panels, based on a first color difference between the brightness and chromaticity data of each pixel point in the first area and a preset brightness and chromaticity target value of the corresponding display panel, acquiring brightness and chromaticity compensation data of the first area, so as to correct the first color difference; For the second area on each display panel, based on the second color difference between the preset brightness and chromaticity target values ​​of the two display panels adjacent to the second area, and the brightness and chromaticity data of each pixel on the second area, the brightness and chromaticity compensation data of the second area is obtained to perform transition processing on the second color difference.

6. The method for correcting chromatic aberration of a spliced ​​panel according to claim 2, characterized in that: The step of obtaining the brightness and chromaticity characteristic information of each display panel to be spliced ​​includes: Obtaining the identifiers of the display panels to be spliced; Based on the identifiers of the display panels to be spliced, brightness and chromaticity feature information corresponding to the identifiers is acquired from the storage unit.

7. The method for correcting chromatic aberration of a spliced ​​panel according to claim 1, characterized in that: Performing brightness and chromaticity compensation on each display panel based on the brightness and chromaticity compensation data includes: Based on the brightness and chromaticity compensation data, the RGB gamma register data of the corresponding display panel is adjusted.

8. A chromatic aberration correction device for a spliced ​​panel, characterized in that: A method for correcting chromatic aberration of a spliced ​​panel as claimed in any one of claims 1 to 7 is implemented, wherein the device for correcting chromatic aberration of a spliced ​​panel comprises: A feature information acquisition module, used to acquire brightness and chromaticity feature information of each display panel to be spliced; A compensation data acquisition module, used to acquire brightness and chromaticity compensation data of each display panel based on the brightness and chromaticity characteristic information of each display panel and the splicing order of each display panel; The color difference correction processing module is used to perform brightness and color compensation on each display panel based on the brightness and color compensation data to correct the color difference of each display panel after splicing.

9. An electronic device, characterized in that: The electronic device includes a processor and a memory; wherein the memory is used to store a computer program, and the computer program is loaded and executed by the processor to implement the method according to any one of claims 1 to 7, or the processor adopts a chromatic aberration correction device for a spliced ​​panel according to claim 8.

10. A storage medium, characterized in that: The storage medium stores computer executable instructions, and when the computer executable instructions are loaded and executed by the processor, the method according to any one of claims 1 to 7 is implemented.

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