Optical data determination method and apparatus

Abstract

Embodiments of the present application disclose an optical data determination method and device, by acquiring initial optical data corresponding to positions of each sub-pixel of a display panel under a white picture of a first preset gray scale, determining actual optical data corresponding to a target sub-pixel under the first preset gray scale according to the initial optical data corresponding to each sub-pixel in a target pixel group corresponding to the target sub-pixel and a preset rule, so that the actual optical data corresponding to each sub-pixel in the display panel can be obtained directly according to the initial optical data under the white picture and the preset rule after the white picture of the first preset gray scale is acquired, and then the actual optical data corresponding to red sub-pixels, green sub-pixels and blue sub-pixels under the white picture is extracted, so that the optical data shooting time required for optical compensation of the display panel is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to an optical data determination method and apparatus. Background Technology

[0002] With the development of display technology, the requirements for image display quality are also getting higher and higher.

[0003] Due to deviations in the manufacturing process or other reasons, existing display panels may exhibit uneven brightness. Therefore, optical compensation is necessary to ensure good image display quality. Performing optical compensation requires acquiring the optical data of each color sub-pixel within the display panel.

[0004] However, in the existing technology, it takes a long time to obtain the optical data required for optical compensation of the display panel, which occupies a long time in the production process and affects the production efficiency of the production line. Summary of the Invention

[0005] This invention provides an optical data determination method and apparatus to shorten the time required to acquire optical data for optical compensation of display panels and improve production line efficiency.

[0006] In a first aspect, embodiments of the present invention provide an optical data determination method, comprising:

[0007] Acquire the initial optical data of the display panel corresponding to the position of each sub-pixel under the first preset grayscale white screen;

[0008] Based on the initial optical data and preset rules of each sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel, determine the actual optical data corresponding to the target sub-pixel under the first preset gray level;

[0009] The extracted pixel group corresponding to the target sub-pixel includes the target sub-pixel and its surrounding sub-pixels; the target sub-pixel is any sub-pixel in the display panel.

[0010] Optionally, based on the initial optical data and preset rules corresponding to each sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel, the actual optical data corresponding to the target sub-pixel at the first preset grayscale is determined, including:

[0011] Based on the initial optical data of each sub-pixel in the extraction pixel group corresponding to the target sub-pixel in the display panel, the extraction coefficient matrix corresponding to the target sub-pixel, and the preset rules, determine the actual optical data corresponding to the target sub-pixel at the first preset gray level.

[0012] wherein, extracting the coefficient matrix comprises extracting the luminance weight coefficients corresponding to each sub-pixel in the extracted pixel group; the preset rule comprises a calculation rule for determining the actual optical data corresponding to the target sub-pixel according to the initial optical data corresponding to each sub-pixel in the extracted pixel group corresponding to the target sub-pixel on the display panel and the extraction coefficient matrix corresponding to the target sub-pixel;

[0013] optionally, the extraction coefficient matrix comprises an N×N matrix, the extracted pixel group comprises N×N sub-pixels continuously arranged in the row direction and continuously arranged in the column direction, the target sub-pixel is the p-th sub-pixel in the row direction and the q-th sub-pixel in the column direction in the extracted pixel group, wherein 1<p<N, 1<q<N, and N is a positive integer greater than or equal to 3;

[0014] optionally, N is an odd number greater than or equal to 3, and p=q=(N+1) / 2.

[0015] optionally, there is at least one extracted pixel group corresponding to sub-pixels of each color, the extraction coefficient matrices corresponding to the same kind of extracted pixel group are the same, and the extraction coefficient matrices corresponding to different kinds of extracted pixel groups are different;

[0016] the pixel arrangement modes in the extracted pixel groups corresponding to sub-pixels of different colors are different; the pixel arrangement mode of the extracted pixel group is related to the pixel arrangement mode in the display panel; the type of the extracted pixel group corresponding to each color sub-pixel is related to the pixel arrangement mode in the display panel.

[0017] optionally, before acquiring the initial optical data corresponding to the positions of each sub-pixel when the display panel displays a white screen under a first preset gray scale, the method further comprises:

[0018] respectively acquiring position information of each color sub-pixel in the display panel, and performing row and column labeling on the sub-pixels;

[0019] before determining the actual optical data corresponding to the target sub-pixel under the first preset gray scale according to the initial optical data corresponding to each sub-pixel in the extracted pixel group corresponding to the target sub-pixel on the display panel, the extraction coefficient matrix corresponding to the target sub-pixel and the preset rule, the method further comprises:

[0020] determining the extracted pixel group and the extraction coefficient matrix corresponding to the target sub-pixel according to the row and column positions corresponding to the position information of the target sub-pixel;

[0021] determining the initial optical data corresponding to each sub-pixel in the extracted pixel group according to the position information of each sub-pixel in the extracted pixel group.

[0022] optionally, determining the extracted pixel group and the extraction coefficient matrix corresponding to the target sub-pixel according to the row and column positions corresponding to the position information of each color sub-pixel on the display panel comprises:

[0023] Based on the row and column positions corresponding to the position information of the target sub-pixel, determine the pixel arrangement and the corresponding extraction coefficient matrix of the extraction pixel group corresponding to the target sub-pixel;

[0024] Based on the pixel arrangement of the extraction pixel group corresponding to the target sub-pixel, the position information of the target sub-pixel, and the position information of each color sub-pixel, the extraction pixel group corresponding to the target sub-pixel is determined.

[0025] Optionally, the display area of ​​the display panel is divided into multiple sub-display areas, and the extraction coefficient matrices corresponding to the same color target sub-pixels in each sub-display area are not completely the same;

[0026] Based on the row and column positions corresponding to the target sub-pixel's location information, determine the pixel arrangement of the extracted pixel group corresponding to the target sub-pixel and the corresponding extraction coefficient matrix, including:

[0027] Based on the row and column positions corresponding to the position information of the target sub-pixel, and the correspondence between the position information of the sub-pixel and the pixel arrangement of the extracted pixel group in the pre-stored data, the pixel arrangement of the extracted pixel group corresponding to the target sub-pixel is determined.

[0028] Based on the row and column positions corresponding to the position information of the target sub-pixel, determine the sub-display area to which the target sub-pixel belongs;

[0029] The extraction coefficient matrix corresponding to the target sub-pixel is determined based on the pixel arrangement of the extraction pixel group corresponding to the target sub-pixel and the sub-display area to which the target sub-pixel belongs;

[0030] The target sub-pixel's corresponding extraction pixel group is determined based on its row and column positions, the pixel arrangement of the extraction pixel group corresponding to the target sub-pixel, and the position information of the sub-pixels in the sub-display area to which the target sub-pixel belongs.

[0031] Optionally, the display area is divided into multiple edge sub-display areas and a central sub-display area, with the multiple edge sub-display areas surrounding the central sub-display area.

[0032] Optional, preset rules include:

[0033] Multiply the initial optical data matrix corresponding to the extracted pixel group corresponding to the target sub-pixel with the extraction coefficient matrix corresponding to the target sub-pixel, and use the resulting product as the intermediate matrix; wherein the initial optical data matrix corresponding to the extracted pixel group includes the initial optical data corresponding to each sub-pixel in the extracted pixel group;

[0034] The actual optical data corresponding to the target sub-pixel at the first preset gray level is determined based on the element values ​​in the transfer matrix.

[0035] Optionally, the actual optical data corresponding to the target sub-pixel at the first preset grayscale is determined based on the element values ​​in the relay matrix, including:

[0036] Based on the relationship between the absolute value of the difference between the sum of the elements in the first set row and the sum of the elements in the second set row in the relay matrix and the absolute value of the difference between the sum of the elements in the first set column and the sum of the elements in the second set column, the actual optical data corresponding to the target sub-pixel is determined.

[0037] Wherein, the first setting line includes at least the first line, and the second setting line includes at least the Nth line;

[0038] The first set column includes at least the first column, and the second set column includes at least the Nth column.

[0039] Optionally, the position information of each color sub-pixel in the display panel is obtained, and the sub-pixels are labeled with rows and columns, including:

[0040] Under the condition that different primary color dot matrix images of the second preset grayscale are displayed on the display panel, the optical data of each sub-pixel in the display panel are obtained;

[0041] Based on the optical data of each sub-pixel in the display panel under the primary color dot matrix image, determine the position information corresponding to the primary color sub-pixel in the display panel;

[0042] The sub-pixels are labeled with rows and columns based on their position information in the display panel;

[0043] Optionally, based on the optical data of each sub-pixel in the display panel under the primary color dot matrix image, determine the position information corresponding to the primary color sub-pixels in the display panel, including:

[0044] Based on the actual position of the lit primary color sub-pixels in the display panel under the primary color dot matrix image, the position information with errors in the pre-stored initial position information table is corrected.

[0045] Optionally, the second preset grayscale includes at least one grayscale within the range of 8-64 grayscale levels.

[0046] Optionally, the initial optical data of the display panel corresponding to the location of each sub-pixel is obtained under a white screen at the first preset grayscale, including:

[0047] The initial optical data corresponding to the location of each sub-pixel on the display panel under a white screen with the first preset grayscale is obtained by a monochrome optical device.

[0048] Secondly, embodiments of the present invention also provide an optical data determination apparatus, comprising:

[0049] The acquisition module is used to acquire the initial optical data of the display panel corresponding to the position of each sub-pixel under the white screen of the first preset gray level;

[0050] The determination module is used to determine the actual optical data corresponding to the target sub-pixel at the first preset gray level based on the initial optical data and preset rules of each sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel.

[0051] The extracted pixel group corresponding to the target sub-pixel includes the target sub-pixel and its surrounding sub-pixels; the target sub-pixel is any sub-pixel in the display panel.

[0052] The optical data determination method and apparatus of this embodiment acquires the initial optical data corresponding to the positions of each sub-pixel on a white screen at a first preset grayscale of the display panel. Based on the initial optical data of each sub-pixel in the extracted pixel group corresponding to the target sub-pixel on the display panel and preset rules, the actual optical data corresponding to the target sub-pixel at the first preset grayscale is determined. This allows for the direct extraction of the actual optical data corresponding to each sub-pixel on the display panel based on the initial optical data and preset rules after acquiring the white screen at the first preset grayscale. This enables the extraction of the actual optical data corresponding to red, green, and blue sub-pixels on a white screen, thereby shortening the time required for optical data acquisition for optical compensation of the display panel and improving production efficiency. Furthermore, the optical data determination method of this embodiment only requires capturing the initial optical data of each sub-pixel position on the display screen using a monochrome optical device, which can reduce costs. Attached Figure Description

[0053] Figure 1 This is a flowchart of an optical data determination method provided in an embodiment of the present invention;

[0054] Figure 2 This is a flowchart of another optical data determination method provided in an embodiment of the present invention;

[0055] Figure 3 This is a schematic diagram of the pixel arrangement in a display panel;

[0056] Figure 4 This is a schematic diagram of the pixel arrangement of a pixel group corresponding to the green pixel;

[0057] Figure 5 This is a schematic diagram of the pixel arrangement of another extracted pixel group corresponding to the green sub-pixel;

[0058] Figure 6 This is a schematic diagram of the pixel arrangement of the extracted pixel group corresponding to the red sub-pixel;

[0059] Figure 7This is a schematic diagram of the pixel arrangement of the extracted pixel group corresponding to the blue sub-pixel;

[0060] Figure 8 This is a flowchart of another optical data determination method provided in an embodiment of the present invention;

[0061] Figure 9 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0062] Figure 10 yes Figure 9 The side view of the display panel is shown.

[0063] Figure 11 This is a flowchart of another optical data determination method provided in an embodiment of the present invention;

[0064] Figure 12 This is a flowchart of a method for obtaining the position information of each sub-pixel in a display panel according to an embodiment of the present invention;

[0065] Figure 13 This is a schematic diagram of a primary color dot matrix image;

[0066] Figure 14 This is a schematic diagram of the structure of an optical data determination device provided in an embodiment of the present invention. Detailed Implementation

[0067] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0068] As described in the background section, in existing technologies, acquiring the optical data required for optical compensation of display panels is time-consuming, resulting in extended time spent at production sites and impacting production line efficiency. Through long-term research, the inventors have discovered that the reason for this problem lies in the fact that, in existing technologies, acquiring the optical data required for optical compensation of display panels requires sequentially capturing images of the display panel at multiple grayscale levels using a monochrome camera (the primary color image is the image where only one type of luminous pixel in the display panel is lit). In the case of a display panel including red, green, and blue sub-pixels, there are three primary color images at the same grayscale level. Consequently, the camera needs to capture three images at each grayscale level to acquire the optical data corresponding to the red, green, and blue sub-pixels at that grayscale level. For example, at 32 grayscale levels, a monochrome camera needs to capture images of red, green, and blue sub-pixels at 32 grayscale levels to acquire the optical data corresponding to each red sub-pixel, each green sub-pixel, and each blue sub-pixel at 32 grayscale levels. This results in a longer time spent on camera shooting, which means a longer time to obtain the optical data needed for optical compensation of the display panel, and a longer time spent at the production site, affecting the production line efficiency.

[0069] For the reasons stated above, embodiments of the present invention provide an optical data determination method. This method can be executed by an optical data determination device, which can be integrated into a monochrome optical device. The monochrome optical device can be a Monochrome camera (the images captured by a Monochrome camera are all black and white). The monochrome optical device is integrated into a processing device that has a communication connection with the monochrome optical device, and this processing device can be a computer. The optical data can be brightness data. Figure 1 This is a flowchart of an optical data determination method provided in an embodiment of the present invention, see reference. Figure 1 The optical data determination method includes:

[0070] Step 110: Obtain the initial optical data of the display panel corresponding to the position of each sub-pixel under the first preset grayscale white screen.

[0071] The initial optical data can be initial brightness data. This initial brightness data can be either absolute brightness data or relative brightness data.

[0072] The display panel may include red sub-pixels (i.e., sub-pixels emitting red light), green sub-pixels (i.e., sub-pixels emitting green light), and blue sub-pixels (i.e., sub-pixels emitting blue light). When the display panel displays a white image, all three sub-pixels are illuminated. Driving data corresponding to a first preset grayscale level can be provided to the red sub-pixels, the green sub-pixels, and the blue sub-pixels via a driving chip in the display panel, enabling the display panel to display a white image at the first preset grayscale level. The white image at the first preset grayscale level can be acquired using a monochrome optical device. That is, step 110 may include: acquiring initial optical data corresponding to the positions of each sub-pixel on the display panel at the first preset grayscale level using a monochrome optical device. The monochrome optical device can be a CCD or CMOS monochrome optical device. The images captured by the monochrome optical device are all black and white. Monochrome optical devices are less expensive, and using them to capture images reduces the cost of acquiring initial optical data. However, since the brightness of neighboring sub-pixels may affect each other, the initial optical data may be inaccurate, and the actual brightness of the sub-pixels needs to be further determined.

[0073] Step 120: Based on the initial optical data and preset rules of each sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel, determine the actual optical data corresponding to the target sub-pixel under the first preset grayscale.

[0074] The extracted pixel group corresponding to the target sub-pixel includes the target sub-pixel and its surrounding sub-pixels.

[0075] When the display panel displays a white screen, the brightness of a sub-pixel is related to the brightness of its surrounding sub-pixels. Specifically, the actual brightness of a sub-pixel is related to the initial optical data of each sub-pixel in the extracted pixel group to which the sub-pixel belongs. The extracted pixel group corresponding to a sub-pixel can be predetermined, and can be determined based on the sub-pixel's location. Once the sub-pixel's location is determined, the sub-pixel and its surrounding sub-pixels can be identified as the extracted pixel group corresponding to the sub-pixel. For any given sub-pixel, for example, a sub-pixel located in row a and column b of the display panel, its corresponding extracted pixel group includes multiple sub-pixels located in rows (ai) to (a+i) and columns (bj) to (b+j), where i and j are integers greater than or equal to 1, and optionally i = j. a and b are both integers greater than or equal to 2.

[0076] In this step, the actual optical data corresponding to the target sub-pixel is determined based on the initial optical data and preset rules of each sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel. The preset rules can be rules derived from statistical analysis after numerous experiments, and these rules are stored as preset rules. By determining the actual optical data corresponding to the target sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel, where the target sub-pixel is any sub-pixel in the display panel, after obtaining a white image at the first preset grayscale, the actual optical data corresponding to each sub-pixel in the display panel can be directly obtained based on the initial optical data and preset rules under the white image. This allows for the extraction of the actual optical data corresponding to the red, green, and blue sub-pixels under the white image, eliminating the need to separately capture the primary color display image at the same first preset grayscale. Compared to the existing technology that requires capturing three primary color images at each grayscale to obtain initial optical data, this shortens the shooting time, thereby reducing the time required to acquire the optical data needed for optical compensation of the display panel and improving production line efficiency.

[0077] When performing optical compensation on a display panel, it is necessary to determine the optical compensation data corresponding to multiple gray levels. Therefore, in this embodiment, multiple different first preset gray levels can be set. For example, when the maximum gray level is 255 gray levels, the multiple different first preset gray levels may include 255 gray levels, 224 gray levels, 192 gray levels, 128 gray levels, 64 gray levels, 48 ​​gray levels, 32 gray levels, 16 gray levels, and 8 gray levels. The initial optical data corresponding to the position of each sub-pixel on the white screen of the display panel at each preset gray level is obtained respectively. After obtaining the initial optical data corresponding to the position of each sub-pixel on the white screen of a first preset gray level (e.g., 255 gray level), the actual optical data corresponding to the target sub-pixel at that first preset gray level (e.g., 255 gray level) is determined according to the initial optical data of each sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel and the preset rules. In the same way, the actual optical data corresponding to each sub-pixel in the display panel at multiple different first preset gray levels can be obtained. For each preset grayscale level, the actual optical data corresponding to each sub-pixel in the display panel at that preset grayscale level is input into a preset Demura algorithm to obtain the corresponding compensation data at that preset grayscale level. Then, a corresponding compensation file can be generated and burned into the driver chip. Later, when the display panel is in operation, the driver chip can provide corresponding driving signals to the display panel based on the compensation data in the compensation file, thereby improving the display effect. It is understandable that when selecting different preset grayscale levels, one each of high, medium, and low grayscale levels can be selected to improve efficiency.

[0078] The optical data determination method of this embodiment acquires the initial optical data corresponding to the location of each sub-pixel on a white screen at a first preset grayscale of the display panel. Based on the initial optical data of each sub-pixel in the extracted pixel group corresponding to the target sub-pixel on the display panel and preset rules, the actual optical data corresponding to the target sub-pixel at the first preset grayscale is determined. This allows the actual optical data corresponding to each sub-pixel on the display panel to be obtained directly from the initial optical data and preset rules after acquiring the white screen at the first preset grayscale. This enables the extraction of the actual optical data corresponding to red, green, and blue sub-pixels on a white screen, thereby shortening the time required for optical data acquisition for optical compensation of the display panel and improving production efficiency. Furthermore, the optical data determination method of this embodiment can acquire the initial optical data of each sub-pixel location on the display screen using a monochrome optical device, reducing costs.

[0079] Figure 2 This is a flowchart of another optical data determination method provided in an embodiment of the present invention, see reference. Figure 2 Optionally, the optical data determination method includes:

[0080] Step 210: Obtain the initial optical data of the display panel corresponding to the position of each sub-pixel under the first preset grayscale white screen; this step is the same as step 110 in the above embodiment, and will not be described again here.

[0081] Step 220: Based on the initial optical data of each sub-pixel in the extraction pixel group corresponding to the target sub-pixel in the display panel, the extraction coefficient matrix corresponding to the target sub-pixel, and the preset rules, determine the actual optical data corresponding to the target sub-pixel at the first preset gray level.

[0082] Wherein, the extraction coefficient matrix includes the luminance weight coefficient corresponding to each sub-pixel in the extracted pixel group. The number of elements in the extraction coefficient matrix is equal to the number of sub-pixels in the extracted pixel group, and the elements in the extraction coefficient matrix are the luminance weight coefficients corresponding to the sub-pixels in the extracted pixel group, and the luminance weight coefficient can be greater than 0 and less than 1. Wherein, the extraction coefficient matrix corresponding to the target sub-pixel corresponds to the extracted pixel group corresponding to the target sub-pixel. In this step, the actual optical data corresponding to the target sub-pixel at the first preset gray scale is determined based on the initial optical data corresponding to each sub-pixel in the extracted pixel group corresponding to the target sub-pixel on the display panel, the extraction coefficient matrix corresponding to the target sub-pixel, and a preset rule. The preset rule includes a calculation rule for determining the actual optical data corresponding to the target sub-pixel based on the initial optical data corresponding to each sub-pixel in the extracted pixel group corresponding to the target sub-pixel on the display panel and the extraction coefficient matrix corresponding to the target sub-pixel, which can realize obtaining the actual optical data corresponding to each sub-pixel on the display panel according to the initial optical data in the white screen and the preset rule, and further realize extracting the actual optical data corresponding to the red sub-pixels, green sub-pixels and blue sub-pixels in the white screen.

[0083] Optionally, the extraction coefficient matrix is an N×N matrix, the extracted pixel group includes N×N sub-pixels continuously arranged in the row direction and continuously arranged in the column direction, the target sub-pixel is the p-th sub-pixel in the row direction and the q-th sub-pixel in the column direction in the extracted pixel group, wherein 1<p<N, 1<q<N, and N is a positive integer greater than or equal to 3. In this way, the extracted pixel group can include at least one sub-pixel around the target sub-pixel in multiple directions, which ensures that when calculating the actual optical data of the target sub-pixel based on the initial optical data of each sub-pixel in the extracted pixel group, the influence factor of the luminance of the sub-pixels in multiple directions around the target sub-pixel on the target sub-pixel is taken into account, thus ensuring the accuracy of the obtained actual luminance of the target sub-pixel.

[0084] Based on the above technical solution, optionally, N is an odd number greater than or equal to 3, and p=q=(N+1) / 2. In this way, the target sub-pixel can be the only sub-pixel at the center position of the extracted pixel group, and other sub-pixels in the extracted pixel group are distributed symmetrically and uniformly around the target sub-pixel, thereby avoiding the problem of reduced accuracy caused by uneven distribution of surrounding sub-pixels of the target sub-pixel in the extracted pixel group when obtaining the actual optical data of the target sub-pixel based on the extracted pixel group corresponding to the target sub-pixel and the extraction coefficient matrix, and ensuring the accuracy of the calculated actual optical data of the target sub-pixel.

[0085] Optionally, the extracted pixel group corresponding to sub-pixels of each color includes at least one type, the extraction coefficient matrices corresponding to the same type of extracted pixel group are the same, and the extraction coefficient matrices corresponding to different types of extracted pixel groups are different.

[0086] The pixel arrangement in the extracted pixel group corresponding to different color sub-pixels is different; the pixel arrangement of the extracted pixel group is related to the pixel arrangement in the display panel; the type of extracted pixel group corresponding to each color sub-pixel is related to the pixel arrangement in the display panel.

[0087] In this context, the same type of extracted pixel group includes the same number of sub-pixels and has the same pixel arrangement. For example, for red, green, and blue sub-pixels in a display panel, if the pixel arrangement of the extracted pixel groups corresponding to the red, green, and blue sub-pixels is different, then the extracted pixel groups corresponding to the red, green, and blue sub-pixels belong to different types of extracted pixel groups. The different pixel arrangement of the extracted pixel groups can be reflected in the different positions of the red, green, and blue sub-pixels within the extracted pixel group. Figure 3 This is a schematic diagram of pixel arrangement in a display panel, where red sub-pixel 10 and blue sub-pixel 30 are located in the same column, and the red sub-pixel 10 and blue sub-pixel 30 are arranged alternately in the same column, while green sub-pixel 20 is in a separate column; the columns of red, blue, and green sub-pixels are arranged alternately. It should be noted that this arrangement is for clear illustration of the row and column relationships of the sub-pixels in the display panel. Figure 3 The pixel arrangement diagram of the display panel schematically shows that the center of the green sub-pixel 20, the center of the blue sub-pixel 30, and the center of the red sub-pixel 10 in the same row are located on the same straight line. In the actual pixel arrangement of the display panel, any two of the centers of the green sub-pixel 20, the red sub-pixel 10, and the blue sub-pixel 30 in the same row may not be on the same straight line. This embodiment does not make specific limitations here.

[0088] for Figure 3 The display panel shown has two types of extracted pixel groups corresponding to green sub-pixel 20, one type of extracted pixel group corresponding to red sub-pixel 10, and one type of extracted pixel group corresponding to blue sub-pixel 30. Figure 4 This is a schematic diagram of the pixel arrangement of a pixel group corresponding to the green pixels. Figure 5 This is a schematic diagram of the pixel arrangement of another extracted pixel group corresponding to the green sub-pixel. Combined with... Figure 3 and Figure 4 ,in Figure 4 The extracted pixel group shown can correspond to the green sub-pixel located in the odd row and even column of the display panel (denoted as the first green sub-pixel 21) and the green sub-pixel located in the even row and odd column (denoted as the second green sub-pixel 22); combined with Figure 3 and Figure 5 , Figure 5The extracted pixel group shown can correspond to the green sub-pixel located in odd-numbered rows and odd-numbered columns in the display panel (denoted as the third green sub-pixel 23), and the green sub-pixel located in even-numbered rows and even-numbered columns (denoted as the fourth green sub-pixel 24). Here, the row where a certain green sub-pixel is located is the row in which that green sub-pixel is located among all green sub-pixels, and the column where a certain green sub-pixel is located is the column in which that green sub-pixel is located among all green sub-pixels. Figure 4 and Figure 5 The examples all use the extraction of 3x3 sub-pixels from a pixel group as an example. (Refer to...) Figure 4 and Figure 5 For the two extracted pixel groups corresponding to the green sub-pixel 20, the second column contains three green sub-pixels 20, where the second green sub-pixel 20 in the second column is the target sub-pixel PX0. Figure 4 The extracted pixel group shown has three sub-pixels in its first column: blue sub-pixel 30, red sub-pixel 10, and blue sub-pixel 30, respectively. The same sub-pixel pattern is repeated in the third column. For... Figure 5 The extracted pixel group is shown. In the first column, the three sub-pixels are red sub-pixel 10, blue sub-pixel 30, and red sub-pixel 10, respectively. In the third column, the three sub-pixels are blue sub-pixel 30, red sub-pixel 10, and blue sub-pixel 30, respectively.

[0089] Figure 6 This is a schematic diagram of the pixel arrangement of the extracted pixel group corresponding to the red sub-pixel. Figure 6 Let's take the example of extracting a 3x3 sub-pixel group as an example, refer to... Figure 6 In the extracted pixel group corresponding to the red sub-pixel 10, the three sub-pixels in the second column are blue sub-pixel 30, red sub-pixel 10, and blue sub-pixel 30, respectively. The three sub-pixels in the first column and the three sub-pixels in the third column are all green sub-pixels 20. In this extracted pixel group, the red sub-pixel 10 is the target sub-pixel PX0.

[0090] Figure 7 This is a schematic diagram of the pixel arrangement of the extracted pixel group corresponding to the blue sub-pixel. Figure 6 Let's take the example of extracting a 3x3 sub-pixel group as an example, refer to... Figure 6 In the extracted pixel group corresponding to blue sub-pixel 30, the three sub-pixels in the second column are red sub-pixel 10, blue sub-pixel 30, and red sub-pixel 10, respectively. The three sub-pixels in the first column and the three sub-pixels in the third column are all green sub-pixels 20. In this extracted pixel group, blue sub-pixel 30 is the target sub-pixel PX0.

[0091] It should be noted that, as mentioned above, the extracted pixel group corresponding to the green sub-pixel 20 includes two types, the extracted pixel group corresponding to the red sub-pixel 10 includes one type, and the extracted pixel group corresponding to the blue sub-pixel 30 includes one type. The type of extracted pixel group corresponding to each color sub-pixel and the pixel arrangement in the extracted pixel group are determined by the pixel arrangement in the display panel. For those different from... Figure 3 In a display panel with the pixel arrangement shown, the type of extracted pixel group corresponding to each color sub-pixel may change, and the pixel arrangement within each extracted pixel group may also change. Therefore, for sub-pixels of the same color in the display panel, the extraction coefficient matrix corresponding to sub-pixels of the same extracted pixel group is the same, and the calculation method for calculating the actual optical data is the same. Only the initial optical data of each sub-pixel in the extracted pixel group may be different. Therefore, the actual optical data of each sub-pixel in the entire display panel can be calculated quickly, further improving the speed of determining the actual brightness data corresponding to the sub-pixel.

[0092] Figure 8 This is a flowchart of another optical data determination method provided in an embodiment of the present invention, see reference. Figure 8 The method for determining the optical data of the display panel includes:

[0093] Step 310: Obtain the position information of each color sub-pixel in the display panel, and label the sub-pixels with rows and columns.

[0094] The display panel includes red, green, and blue sub-pixels. When acquiring the position information of each color sub-pixel in the display panel, this can be done in a monochrome environment. For example, at least some of the red sub-pixels can be illuminated, and their positions can be captured by taking a picture. With only some red sub-pixels illuminated, the positions of the other unilluminated red sub-pixels can be calculated using a pre-defined method. Then, the red sub-pixels are turned off, and only some of the green sub-pixels are illuminated. The position information of each green sub-pixel is then acquired using the same method. Similarly, the green sub-pixels are turned off, and only some of the blue sub-pixels are illuminated. Once the sub-pixel position information is obtained, the row and column of each sub-pixel can be labeled based on its position.

[0095] Step 320: Obtain the initial optical data of the display panel corresponding to the position of each sub-pixel under the first preset grayscale white screen; this step is the same as step 110 in the above embodiment, and will not be described again here.

[0096] Step 330: Determine the extraction pixel group and extraction coefficient matrix corresponding to the target sub-pixel based on the row and column positions corresponding to the position information of the target sub-pixel.

[0097] The pixel arrangement of the extracted pixel group corresponding to each color sub-pixel can be predetermined based on the pixel arrangement in the display panel, and the correspondence between the row and column of the sub-pixel and the arrangement of the extracted pixel group can be stored in advance.

[0098] Based on the pre-stored correspondence between the row and column of the sub-pixel and the pixel arrangement of the extracted pixel group, and the row and column position corresponding to the target sub-pixel's position information (i.e., the row and column where the target sub-pixel is located), the pixel arrangement of the extracted pixel group corresponding to each color sub-pixel can be determined. The extraction coefficient matrix corresponds to the pixel arrangement of the extracted pixel group; therefore, once the extracted pixel group is determined, the extraction coefficient matrix can also be determined.

[0099] In one optional implementation, the correspondence between the pixel arrangement of the extracted pixel group and the extraction coefficient matrix can be pre-stored. Then, based on the pixel arrangement of the extracted pixel group, the extraction coefficient matrix corresponding to the extracted pixel group, i.e., the extraction coefficient matrix corresponding to the target sub-pixel, can be determined. In another implementation, the correspondence between the row and column of the sub-pixel and the extraction coefficient matrix can be pre-stored. Then, based on the row and column position corresponding to the position information of the target sub-pixel, the extraction coefficient matrix corresponding to the target sub-pixel can be determined.

[0100] That is, step 330 above includes: determining the pixel arrangement of the extracted pixel group corresponding to the target sub-pixel and the corresponding extraction coefficient matrix based on the row and column positions corresponding to the position information of the target sub-pixel.

[0101] Step 330 above also includes: determining the extraction pixel group corresponding to the target sub-pixel based on the pixel arrangement of the extraction pixel group corresponding to the target sub-pixel, the position information of the target sub-pixel, and the position information of each color sub-pixel.

[0102] Specifically, based on the position information of the target sub-pixel, the pixel arrangement of the extracted pixel group, and the position information of each color sub-pixel, the extracted pixel group can be determined, and specifically, the position of each sub-pixel in the extracted pixel group can be determined.

[0103] Optionally, before determining the extraction pixel group and the corresponding extraction coefficient matrix corresponding to the target sub-pixel based on the position information of the target sub-pixel and the pixel arrangement of the extraction pixel group, optical data can be acquired from the sample display panel under the first preset grayscale white screen to obtain the extraction coefficient matrix corresponding to each color sub-pixel under the first preset grayscale.

[0104] The sample display panel can be one or more of a batch of display panels with the same structure. By acquiring optical data from the sample display panel under a white screen at the first preset grayscale, and through extensive statistical analysis, the extraction coefficient matrix corresponding to each color sub-pixel at the first preset grayscale can be obtained.

[0105] Step 340: Determine the initial optical data corresponding to each sub-pixel in the extracted pixel group based on the position information of each sub-pixel in the extracted pixel group.

[0106] After determining the position information of each sub-pixel in the extracted pixel group, based on the initial optical data corresponding to the position of each sub-pixel and the position information of each sub-pixel in the extracted pixel group under the white screen of the first preset grayscale of the display panel, the initial optical data corresponding to the position of each sub-pixel in the extracted pixel group can be determined, that is, the initial optical data corresponding to each sub-pixel in the extracted pixel group can be determined.

[0107] Step 350: Determine the actual optical data corresponding to the target sub-pixel based on the initial optical data of each sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel, the extraction coefficient matrix corresponding to the target sub-pixel, and the preset rules; this step is the same as step 220 in the above embodiment, and will not be repeated here.

[0108] Optional, preset rules include:

[0109] Multiply the initial optical data matrix corresponding to the extracted pixel group corresponding to the target sub-pixel with the extraction coefficient matrix corresponding to the target sub-pixel, and use the resulting product as the transfer matrix; wherein the initial optical data matrix corresponding to the extracted pixel group includes the initial optical data corresponding to each sub-pixel in the extracted pixel group; then determine the actual optical data corresponding to the target sub-pixel based on the element values ​​in the transfer matrix.

[0110] by Figure 4 Taking the extracted pixel group corresponding to the green sub-pixel as an example, if the target sub-pixel is a green sub-pixel, the target sub-pixel is denoted as G. nm Let be the green sub-pixel located in the nth row and mth column of the display panel, where m and n are both integers greater than or equal to 2. Then, the sub-pixels in the extracted pixel group are B. (n-1)(m-1) G (n-1)m R (n-1)(m+1) R n(m-1) G nm B n(m+1) B (n+1)(m-1) G (n+1)m R (n+1)(m+1) Among them, B (n-1)(m-1) G represents the blue sub-pixel located in row (n-1) and column (m-1) of the display panel. (n-1)mR represents the green sub-pixel located in row (n-1) and column m in the display panel. (n-1)(m+1) R represents the red sub-pixel located in row (n-1) and column (m+1) of the display panel. n(m-1) B represents the red sub-pixel located in the nth row and m-1th column of the display panel. n(m+1) B represents the blue sub-pixel located in the nth row and m+1th column of the display panel. (n+1)(m-1) G represents the blue sub-pixel located in row (n+1) and column (m-1) of the display panel. (n+1)m R represents the green sub-pixel located in row (n+1) and column (m) of the display panel. (n+1)(m+1) This represents the red sub-pixel in row (n+1) and column (m+1) of the display panel. The initial optical data matrix corresponding to the extracted pixel group of the target sub-pixel is... Among them LB (n-1)(m-1) Represents blue sub-pixel B (n-1)(m-1) Corresponding initial optical data, LG (n-1)m Represents the green sub-pixel G (n-1)m Corresponding initial optical data, LR (n-1)(m+1) Represents the red sub-pixel R (n-1)(m+1) Corresponding initial optical data, LR n(m-1) Represents the red sub-pixel R n(m-1) Corresponding initial optical data, LG nm Represents the green sub-pixel G nm (i.e., the initial optical data corresponding to the target sub-pixel), LB n(m+1) Represents blue sub-pixel B n(m+1) Corresponding initial optical data, LB (n+1)(m-1) Represents blue sub-pixel B (n+1)(m-1) Corresponding initial optical data, LG (n+1)m Represents the green sub-pixel G (n+1)m Corresponding initial optical data, LR (n+1)(m+1) Represents the red sub-pixel R (n+1)(m+1) The corresponding initial optical data. The extraction coefficient matrix corresponding to the target sub-pixel is denoted as... Where g 11 Represents blue sub-pixel B (n-1)(m-1) The corresponding brightness weighting coefficient, g 12 Represents the green sub-pixel G (n-1)m The corresponding brightness weighting coefficient, g 13 Represents the red sub-pixel R (n-1)(m+1) The corresponding brightness weighting coefficient, g 21 Represents the red sub-pixel R n(m-1) The corresponding brightness weighting coefficient, g 22 Represents the green sub-pixel G nm The brightness weighting coefficient g corresponding to the target sub-pixel (i.e., the target sub-pixel) 23Represents blue sub-pixel B n(m+1) The corresponding brightness weighting coefficient, g 31 Represents blue sub-pixel B (n+1)(m-1) The corresponding brightness weighting coefficient, g 32 Represents the green sub-pixel G (n+1)m The corresponding brightness weighting coefficient, g 33 Represents the red sub-pixel R (n+1)(m+1) The corresponding brightness weighting coefficient.

[0111] The target sub-pixel is denoted as G. nm The corresponding transit matrix is ​​calculated as follows:

[0112]

[0113] Among them, Gt 11 =g 11 *LB (n-1)(m-1) +g 12 *LR n(m-1) +g 13 *LB (n+1)(m-1) ,Gt 12 =g 11 *LG (n-1)m +g 12 *LG nm +g 13 *LB (n+1)m And so on, the other elements of the transit matrix will not be described in detail.

[0114] The above explanation uses a green sub-pixel as an example to illustrate the calculation of the transfer matrix. The process for determining the transfer matrix when the target sub-pixel is red is similar to that when the target sub-pixel is green. For the case where the target sub-pixel is red, please refer to... Figure 6 Let the red sub-pixel that is used as the target sub-pixel be denoted as R. nm This refers to the red sub-pixel located in the nth row and mth column of the display panel, where m and n are both integers greater than or equal to 2. The extracted pixel group comprises N x N sub-pixels, and the extraction coefficient matrix comprises an N x N matrix. Taking N = 3 as an example, the target sub-pixel R... nm The corresponding transit matrix is:

[0115]

[0116] in, Represents the target sub-pixel R nm The corresponding extraction coefficient matrix, Represents the target sub-pixel R nm The corresponding initial optical data matrix of the extracted pixel group, Represents the target sub-pixel Rnm The corresponding transfer matrix.

[0117] In the initial optical data matrix, LG (n-1)(m-1) Represents the green sub-pixel G (n-1)(m-1) (The initial optical data corresponding to the green sub-pixel located in row (n-1) and column (m-1) of the display panel, LB) (n-1)m Represents blue sub-pixel B (n-1)m (The initial optical data corresponding to the blue sub-pixel located in row (n-1) and column m in the display panel, LG) (n-1)(m+1) Represents the green sub-pixel G (n-1)(m+1) (The initial optical data corresponding to the green sub-pixel located in row (n-1) and column (m+1) of the display panel, LG n(m-1) Represents the green sub-pixel G n(m-1) (The initial optical data corresponding to the green sub-pixel located in row n, column m-1 of the display panel, LR) nm Represents the red sub-pixel R nm (The initial optical data corresponding to the red sub-pixel located in the nth row and mth column of the display panel, i.e., the target sub-pixel), LG n(m+1) Represents the green sub-pixel G n(m+1) (The initial optical data corresponding to the green sub-pixel located in row n, column m+1 of the display panel, LG) (n+1)(m-1) Represents the green sub-pixel G (n+1)(m-1) (The initial optical data corresponding to the green sub-pixel located in row (n+1) and column (m-1) of the display panel, LB) (n+1)m Represents blue sub-pixel B (n+1)m (The initial optical data corresponding to the blue sub-pixel located in row (n+1) and column m in the display panel, LG) (n+1)(m+1) Represents the green sub-pixel G (n+1)(m+1) The initial optical data corresponding to the green sub-pixel located in row (n+1) and column (m+1) of the display panel. The extraction coefficient moments corresponding to the target sub-pixel, where r... 11 Represents the green sub-pixel G (n-1)(m-1) The corresponding brightness weighting coefficient, r 12 Represents blue sub-pixel B (n -1 )m The corresponding brightness weighting coefficient, r 13 Represents the green sub-pixel G (n-1)(m+1) The corresponding brightness weighting coefficient, r 21 Represents the green sub-pixel LG n(m-1) The corresponding brightness weighting coefficient, r 22 Represents the red sub-pixel R nm The brightness weighting coefficient r corresponding to the target sub-pixel (i.e., the target sub-pixel) 23 Represents the green sub-pixel Gn(m+1) The corresponding brightness weighting coefficient, r 31 Represents the green sub-pixel G (n+1)(m-1) The corresponding brightness weighting coefficient, r 32 Represents blue sub-pixel B (n+1)m The corresponding brightness weighting coefficient, r 33 Represents the green sub-pixel G (n+1)(m+1) The corresponding brightness weighting coefficient.

[0118] The process of determining the relay matrix when the target sub-pixel is blue is similar to the process of determining the relay matrix when the target sub-pixel is green or red. See also... Figure 7 When the target sub-pixel is a blue sub-pixel, the blue sub-pixel that is used as the target sub-pixel is denoted as B. nm This refers to the blue sub-pixel located in the nth row and mth column of the display panel, where m and n are both integers greater than or equal to 2. The extracted pixel group comprises N x N sub-pixels, and the extraction coefficient matrix comprises an N x N matrix. Taking N = 3 as an example, the target sub-pixel B... nm The corresponding transit matrix is:

[0119]

[0120] in, Represents target sub-pixel B nm The corresponding extraction coefficient matrix, Represents target sub-pixel B nm The corresponding initial optical data matrix of the extracted pixel group, Represents target sub-pixel B nm The corresponding transfer matrix.

[0121] In the initial optical data matrix, LG (n-1)(m-1) Represents the green sub-pixel G (n-1)(m-1) (The initial optical data corresponding to the green sub-pixel located in row (n-1) and column (m-1) of the display panel, LR) (n-1)m Represents the red sub-pixel R (n-1)m Initial optical data corresponding to the red sub-pixel located in row (n-1) and column m in the display panel, LG (n-1)(m+1) Represents the green sub-pixel G (n-1)(m+1) (The initial optical data corresponding to the green sub-pixel located in row (n-1) and column (m+1) of the display panel, LG n(m-1) Represents the green sub-pixel G n(m-1) (The initial optical data corresponding to the green sub-pixel located in row n, column m-1 of the display panel, LB) nm Represents blue sub-pixel B nm(The initial optical data corresponding to the blue sub-pixel located in the nth row and mth column of the display panel, i.e., the target sub-pixel), LG n(m+1) Represents the green sub-pixel G n(m+1) (The initial optical data corresponding to the green sub-pixel located in row n, column m+1 of the display panel, LG) (n+1)(m-1) Represents the green sub-pixel G (n+1)(m-1) (The initial optical data corresponding to the green sub-pixel located in row (n+1) and column (m-1) of the display panel, LR (n+1)m Represents the red sub-pixel R (n+1)m (The initial optical data corresponding to the red sub-pixel located in row (n+1) and column m in the display panel, LG) (n+1)(m+1) Represents the green sub-pixel G (n+1)(m+1) The initial optical data corresponding to the green sub-pixel located in row (n+1) and column (m+1) of the display panel. In the extraction coefficient moments corresponding to the target sub-pixel, where b... 11 Represents the green sub-pixel G (n-1)(m-1) The corresponding brightness weighting coefficient, b 12 Represents the red sub-pixel R (n-1)m The corresponding brightness weighting coefficient, b 13 Represents the green sub-pixel G (n-1)(m+1) The corresponding brightness weighting coefficient, b 21 Represents the green sub-pixel LG n(m-1) The corresponding brightness weighting coefficient, b 22 Represents blue sub-pixel B nm (i.e., the brightness weighting coefficient corresponding to the target sub-pixel), b 23 Represents the green sub-pixel G n(m+1) The corresponding brightness weighting coefficient, b 31 Represents the green sub-pixel G (n+1)(m-1) The corresponding brightness weighting coefficient, b 32 Represents the red sub-pixel R (n+1)m The corresponding brightness weighting coefficient, b 33 Represents the green sub-pixel G (n+1)(m+1) The corresponding brightness weighting coefficient.

[0122] After the relay matrix is ​​obtained, the actual optical data corresponding to the target sub-pixel is determined based on the element values ​​in the relay matrix. Specifically, a rule for determining the actual optical data corresponding to the target sub-pixel based on the element values ​​in the relay matrix can be preset. After the relay matrix is ​​determined, the actual optical data of the target sub-pixel is determined according to the preset rule for determining the actual optical data corresponding to the target sub-pixel based on the element values ​​in the relay matrix.

[0123] Optionally, determining the actual optical data corresponding to the target sub-pixel based on the element values ​​in the relay matrix includes: determining the actual optical data corresponding to the target sub-pixel based on the relationship between the absolute value of the difference between the sum of the elements in the first set row and the sum of the elements in the second set row in the relay matrix and the absolute value of the difference between the sum of the elements in the first set column and the sum of the elements in the second set column; wherein the first set row includes at least the first row, the second set row includes at least the Nth row, the first set column includes at least the first column, and the second set column includes at least the Nth column.

[0124] In some optional embodiments of the present invention, the first setting row includes a first row, the second setting row includes an Nth row, the first setting column includes a first column, and the second setting column includes an Nth column. In another optional embodiment of the present invention, the first setting row includes rows one through n-1, the second setting row includes rows n+1 through N; the first setting column includes columns one through m-1, and the second setting column includes columns m+1 through N.

[0125] Optionally, when the absolute value of the difference between the sum of elements in the first set row and the sum of elements in the second set row is less than the absolute value of the difference between the sum of elements in the first set column and the sum of elements in the second set column, the actual optical data corresponding to the target sub-pixel is determined as the average of each element in the first set row and each element in the second set row; when the absolute value of the difference between the sum of elements in the first set row and the sum of elements in the second set row is greater than the absolute value of the difference between the sum of elements in the first set column and the sum of elements in the second set column, the actual optical data corresponding to the target sub-pixel is determined as the average of each element in the first set column and each element in the second set column; when the absolute value of the difference between the sum of elements in the first set row and the sum of elements in the second set row is equal to the absolute value of the difference between the sum of elements in the first set column and the sum of elements in the second set column, the actual optical data corresponding to the target sub-pixel is determined as the average of the sums of elements in the first set row, the second set row, the second set column, and the second set column in the relay matrix. N=3, the target sub-pixel is the green sub-pixel G. nm At that time, the target sub-pixel G nm Corresponding actual optical data L s G nm The calculation formula is:

[0126]

[0127] N=3, the target sub-pixel is the red sub-pixel R nm At that time, the target sub-pixel R nm Corresponding actual optical data L s R nm The calculation formula is:

[0128]

[0129] N=3, the target sub-pixel is the blue sub-pixel B. nm At that time, target sub-pixel B nm Corresponding actual optical data L s B nm The calculation formula is:

[0130]

[0131] Based on the above technical solutions, Figure 9 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention, for reference. Figure 9 Optionally, the display area AA of the display panel is divided into multiple sub-display areas, and the extraction coefficient matrices corresponding to the same color target sub-pixels in different sub-display areas are not completely the same.

[0132] Specifically, in different sub-display areas of a display panel, the degree of brightness influence between adjacent sub-pixels may differ. Therefore, the extraction coefficient matrices corresponding to the same color target sub-pixels in different sub-display areas may be different. For example, in a curved screen located at the edge, for a certain sub-pixel in the edge area of ​​the display area, the surrounding sub-pixels may not be on the same plane as the sub-pixel, while all sub-pixels in the central area are on the same plane. Therefore, the degree of brightness influence between adjacent sub-pixels differs between the central area and the edge area. Figure 10 yes Figure 9 The side view of the display panel shown is for reference. Figure 9 and Figure 10 The display area is divided into multiple edge sub-display areas and a central sub-display area AA0, with the multiple edge sub-display areas surrounding the central sub-display area. The multiple edge sub-display areas may include a first edge sub-display area AA1 and a second edge sub-display area AA2 that are arranged opposite to each other, as well as a third edge sub-display area AA3 and a fourth edge sub-display area AA4 that are arranged opposite to each other, wherein the first edge sub-display area AA1 and the second edge sub-display area AA2 can be a curved display area.

[0133] Figure 11 This is a flowchart of another optical data determination method provided in an embodiment of the present invention, see reference. Figure 11 The method for determining the optical data of the display panel includes:

[0134] Step 410: Obtain the position information of each color sub-pixel in the display panel and label the sub-pixels by row and column. This step is the same as the process in step 310 in the above embodiment, and will not be described again here.

[0135] Step 420: Obtain the initial optical data of the display panel corresponding to the position of each sub-pixel under the first preset grayscale white screen; this step is the same as step 110 in the above embodiment, and will not be repeated here.

[0136] Step 430: Based on the row and column positions corresponding to the position information of the target sub-pixel and the correspondence between the pre-stored position information of the sub-pixel and the pixel arrangement of the extracted pixel group, determine the pixel arrangement of the extracted pixel group corresponding to the target sub-pixel.

[0137] As described above, the pixel arrangement of the extracted pixel group corresponding to each color sub-pixel can be predetermined based on the pixel arrangement in the display panel, and the correspondence between the sub-pixel position information and the extracted pixel group arrangement can be pre-stored. After the target sub-pixel is determined, the pixel arrangement of the extracted pixel group corresponding to the target sub-pixel can be obtained based on the target sub-pixel position information and the pre-stored correspondence between the sub-pixel position information and the extracted pixel group arrangement.

[0138] Step 440: Determine the sub-display area to which the target sub-pixel belongs based on the row and column positions corresponding to the position information of the target sub-pixel.

[0139] Specifically, different sub-display areas contain different sub-pixels. Based on the position signal of the target sub-pixel, the sub-display area to which the target sub-pixel belongs can be determined.

[0140] Step 450: Determine the extraction coefficient matrix corresponding to the target sub-pixel based on the pixel arrangement of the extraction pixel group corresponding to the target sub-pixel and the sub-display area to which the target sub-pixel belongs.

[0141] Specifically, even if two target sub-pixels belonging to different sub-display areas have the same pixel arrangement in their corresponding extraction pixel groups, the extraction coefficient matrices for the two target sub-pixels may still be different. In this step, when determining the extraction coefficient matrix of a target sub-pixel, while considering the pixel arrangement of the extraction pixel group corresponding to the target sub-pixel, the sub-display area to which the target sub-pixel belongs should also be taken into account to ensure the accuracy of the obtained extraction coefficient matrix. Consequently, this ensures the accuracy of the actual optical data of the target sub-pixel obtained from the calculation.

[0142] Step 460: Determine the extraction pixel group corresponding to the target sub-pixel based on the row and column positions corresponding to the position information of the target sub-pixel, the pixel arrangement of the extraction pixel group corresponding to the target sub-pixel, and the position information of the sub-pixels in the sub-display area to which the target sub-pixel belongs.

[0143] Specifically, based on the position information of the target sub-pixel, the pixel arrangement of the extraction pixel group corresponding to the target sub-pixel, and the position information of the sub-pixels in the sub-display area to which the target sub-pixel belongs, the location of each sub-pixel in the extraction pixel group can be determined, that is, each sub-pixel included in the extraction pixel group can be determined.

[0144] Step 470: Determine the initial optical data corresponding to each sub-pixel in the extracted pixel group based on the position information of each sub-pixel in the extracted pixel group; this step is the same as step 340 in the above embodiment, and will not be described again here.

[0145] Step 480: Based on the initial optical data of each sub-pixel in the extraction pixel group corresponding to the target sub-pixel in the display panel, the extraction coefficient matrix corresponding to the target sub-pixel, and the preset rules, determine the actual optical data corresponding to the target sub-pixel under the first preset gray level; this step is the same as step 220 in the above embodiment, and will not be described again here.

[0146] Figure 12 This is a flowchart of a method for obtaining the position information of each sub-pixel in a display panel according to an embodiment of the present invention. Based on the above embodiment, the processes of obtaining the position information of each sub-pixel in steps 310 and 410 respectively include:

[0147] Step 11: Under the condition that the second preset grayscale dot matrix images are displayed on the display panel, obtain the optical data of each sub-pixel in the display panel.

[0148] Figure 13 This is a schematic diagram of a primary color dot matrix image. For example, when the display panel includes red, green, and blue sub-pixels, it can be controlled to display a red dot matrix image (only some red sub-pixels in the display panel are illuminated, and the displayed grayscale of the illuminated red sub-pixels is the second preset grayscale), a green dot matrix image (only some green sub-pixels in the display panel are illuminated, and the displayed grayscale of the illuminated green sub-pixels is the second preset grayscale), and a blue dot matrix image (only some blue sub-pixels in the display panel are illuminated, and the displayed grayscale of the illuminated blue sub-pixels is the second preset grayscale), respectively. In the primary color dot matrix image, the interval between two adjacent illuminated sub-pixels in the same direction is equal. For example, the interval between two adjacent illuminated sub-pixels in the row direction x1 is equal, and the interval between two adjacent illuminated sub-pixels in the column direction y1 is equal. Optionally, in the primary color dot matrix images corresponding to different colors, the illuminated sub-pixels belong to the same pixel, where each pixel includes at least one red sub-pixel, at least one green sub-pixel, and at least one blue sub-pixel.

[0149] Specifically, before step 11, a coordinate system can be established. The horizontal and vertical coordinates of the coordinate system are related to the resolution of the display panel, and the precision of the coordinate system is a positive integer multiple of the display panel resolution. Optionally, the precision of the coordinate system is 3W times the display panel resolution, where W is a positive integer. For example, when W=1, if the resolution of the display panel is 1080x2400, then the horizontal and vertical coordinate ranges of the coordinate system are [0, 1080x3] and [0, 2400x3], respectively.

[0150] In the primary color dot matrix image, sub-pixels of the same color in the display panel are illuminated at specified intervals. This means that corresponding driving data is sent to the sub-pixels in the display panel at specified intervals, causing the display panel to display the primary color dot matrix image. The principle for setting the dot interval is that the horizontal coordinate interval value can be divided by the maximum value of the corresponding horizontal coordinate, and the vertical coordinate interval value can be divided by the maximum value of the corresponding vertical coordinate. For example, based on a 1080x2400 resolution, when the horizontal and vertical coordinate ranges of the coordinate system are [0, 1080x3] and [0, 2400x3] respectively, the dot interval is [360, 800], where 360 ​​is divisible by 1080x3, and 800 is divisible by 2400x3. The dot interval [360, 800] represents the illumination of two adjacent sub-pixels in the row direction of the display panel (e.g., ...). Figure 13 The spacing between A1 and A2 is 360 degrees. For two adjacent sub-pixels lit in the column direction of the display panel (e.g., ... Figure 13 The interval between A1 and A3 is 800.

[0151] Step 12: Determine the position information of the primary color sub-pixels in the display panel based on the optical data of each sub-pixel in the primary color dot matrix image.

[0152] Based on the optical data of each sub-pixel in the display panel under the primary color dot matrix image, the position information of the lit sub-pixels can be obtained. This position information can be the horizontal and vertical coordinates of the sub-pixel in the coordinate system. After determining the position information of the lit sub-pixels, the position information of the unlit sub-pixels of the same color can be calculated.

[0153] Optionally, step 12 above includes:

[0154] Based on the actual positions of the lit primary color sub-pixels in the display panel under the primary color dot matrix image, the position information with errors in the pre-stored initial position information table is corrected.

[0155] The initial position information table can be obtained by determining the position information of the sample display panel. Due to deviations in the manufacturing process, the physical positions of sub-pixels may vary in different display panels. In this embodiment, the position information in the pre-stored initial position information table that contains errors can be corrected based on the actual position information corresponding to the lit primary color sub-pixels in the display panel under the obtained primary color dot matrix image, so as to ensure the accuracy of the obtained sub-pixel position information.

[0156] Step 13: Label the sub-pixels with rows and columns according to the position information of each sub-pixel in the display panel.

[0157] Specifically, after obtaining the position information of each sub-pixel in the display panel, the row of the sub-pixel is determined based on its horizontal coordinate, and the column of the sub-pixel is determined based on its total coordinates, and row and column labels are made accordingly. Optionally, the second preset grayscale includes at least one grayscale within the range of 8-64 grayscale levels.

[0158] Specifically, because the brightness of a sub-pixel is more significantly affected by the brightness of its surrounding sub-pixels when the display panel is at low brightness, this embodiment obtains the position of each sub-pixel under a primary color dot matrix image at a second preset grayscale level at low brightness. Since the sub-pixels surrounding a lit sub-pixel in the primary color dot matrix image will not be lit, the accuracy of the low grayscale coordinate information can be improved. The second preset grayscale level can be grayscale 8-64 in the first display mode, or it can be grayscale 255 in the second display mode. The maximum brightness in the first display mode is higher than the maximum brightness in the second display mode. In some optional embodiments, the brightness at grayscale 255 in the second display mode is equal to the brightness of a certain grayscale level within the range of grayscale 8-64 in the first display mode.

[0159] It should be noted that the second preset gray level can also be other gray levels besides 8-64, and this embodiment does not make specific limitations here.

[0160] This invention also provides an optical data determination device. Figure 14 This is a schematic diagram of an optical data determination device provided in an embodiment of the present invention. (Refer to...) Figure 14 The optical data determination device includes:

[0161] The acquisition module 510 is used to acquire the initial optical data of the display panel corresponding to the position of each sub-pixel under the white screen of the first preset gray level;

[0162] The determining module 520 is used to determine the actual optical data corresponding to the target sub-pixel under the first preset gray level based on the initial optical data and preset rules of each sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel.

[0163] The extracted pixel group corresponding to the target sub-pixel includes the target sub-pixel and its surrounding sub-pixels; the target sub-pixel is any sub-pixel in the display panel.

[0164] The optical data determination apparatus of this embodiment is used to execute the optical data determination method of any of the above embodiments of the present invention, and has the beneficial effects of the optical data determination method of any of the above embodiments of the present invention, which will not be described again here.

[0165] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for determining optical data, characterized in that, Comprising: obtaining initial optical data corresponding to the position of each sub-pixel when the display panel presents a white picture at a first preset gray scale; determining, according to the initial optical data corresponding to each sub-pixel in an extraction pixel group corresponding to a target sub-pixel of the display panel and a preset rule, actual optical data corresponding to the target sub-pixel at the first preset gray scale; wherein the extraction pixel group corresponding to the target sub-pixel comprises the target sub-pixel and surrounding sub-pixels thereof; the target sub-pixel is any one of the sub-pixels in the display panel; the step of determining, according to the initial optical data corresponding to each sub-pixel in the extraction pixel group corresponding to the target sub-pixel of the display panel and the preset rule, actual optical data corresponding to the target sub-pixel at the first preset gray scale comprises: determining, according to the initial optical data corresponding to each sub-pixel in the extraction pixel group corresponding to the target sub-pixel of the display panel, an extraction coefficient matrix corresponding to the target sub-pixel and the preset rule, the actual optical data corresponding to the target sub-pixel at the first preset gray scale; wherein the extraction coefficient matrix comprises luminance weight coefficients corresponding to each sub-pixel in the extraction pixel group; the preset rule comprises a calculation rule for determining the actual optical data corresponding to the target sub-pixel according to the initial optical data corresponding to each sub-pixel in the extraction pixel group corresponding to the target sub-pixel of the display panel and the extraction coefficient matrix corresponding to the target sub-pixel; the extraction coefficient matrix is an N×N matrix, the extraction pixel group comprises N×N sub-pixels continuously arranged in a row direction and continuously arranged in a column direction, the target sub-pixel is the p-th sub-pixel in the row direction and the q-th sub-pixel in the column direction in the extraction pixel group, wherein 1 < p < N, 1 < q < N, and N is a positive integer greater than or equal to 3; the preset rule comprises: multiplying an initial optical data matrix corresponding to the extraction pixel group corresponding to the target sub-pixel by the extraction coefficient matrix corresponding to the target sub-pixel, and taking the obtained product as a transfer matrix; wherein the initial optical data matrix corresponding to the extraction pixel group comprises the initial optical data corresponding to each sub-pixel in the extraction pixel group; determining, according to element values in the transfer matrix, the actual optical data corresponding to the target sub-pixel at the first preset gray scale; the step of determining, according to element values in the transfer matrix, the actual optical data corresponding to the target sub-pixel at the first preset gray scale comprises: determining the actual optical data corresponding to the target sub-pixel according to the magnitude relationship between an absolute value of a difference between a sum of elements in a first set row and a sum of elements in a second set row in the transfer matrix and an absolute value of a difference between a sum of elements in a first set column and a sum of elements in a second set column; wherein the first set row at least comprises a first row, and the second set row at least comprises an N-th row; the first set column at least comprises a first column, and the second set column at least comprises an N-th column.

2. The optical data determination method according to claim 1, characterized in that, N is an odd number greater than or equal to 3, and p = q = (N+1) / 2.

3. The optical data determination method according to claim 1, characterized in that, Each color sub-pixel corresponds to at least one extracted pixel group, the same extraction coefficient matrix is ​​corresponding to the same extracted pixel group, and different extraction coefficient matrices are corresponding to different extracted pixel groups. The pixel arrangement in the extracted pixel group corresponds to different color sub-pixels; the pixel arrangement in the extracted pixel group is related to the pixel arrangement in the display panel; the type of extracted pixel group corresponding to each color sub-pixel is related to the pixel arrangement in the display panel.

4. The optical data determination method according to claim 1, characterized in that, Before acquiring the initial optical data corresponding to the location of each sub-pixel on the white screen of the display panel at the first preset grayscale, the method further includes: The position information of each color sub-pixel in the display panel is obtained respectively, and the sub-pixels are labeled with rows and columns; Before determining the actual optical data corresponding to the target sub-pixel at the first preset grayscale based on the initial optical data corresponding to each sub-pixel in the extraction pixel group corresponding to the target sub-pixel in the display panel, the extraction coefficient matrix corresponding to the target sub-pixel, and the preset rule, the method further includes: Based on the row and column positions corresponding to the position information of the target sub-pixel, determine the extracted pixel group and the extraction coefficient matrix corresponding to the target sub-pixel; The initial optical data corresponding to each sub-pixel in the extracted pixel group is determined based on the position information of each sub-pixel in the extracted pixel group.

5. The optical data determination method according to claim 4, characterized in that, The step of determining the extracted pixel group and the extraction coefficient matrix corresponding to the target sub-pixel based on the row and column positions corresponding to the position information of the target sub-pixel includes: Based on the row and column positions corresponding to the position information of the target sub-pixel, determine the pixel arrangement of the extracted pixel group corresponding to the target sub-pixel and the corresponding extraction coefficient matrix; Based on the pixel arrangement of the extracted pixel group corresponding to the target sub-pixel, the position information of the target sub-pixel, and the position information of each color sub-pixel, the extracted pixel group corresponding to the target sub-pixel is determined.

6. The optical data determination method according to claim 5, characterized in that, The display panel is divided into multiple sub-display areas, and the extraction coefficient matrices corresponding to the target sub-pixels of the same color in each sub-display area are not completely the same; The step of determining the pixel arrangement of the extracted pixel group and the corresponding extraction coefficient matrix based on the row and column positions corresponding to the position information of the target sub-pixel includes: Based on the row and column positions corresponding to the position information of the target sub-pixel, and the pre-stored correspondence between the position information of the sub-pixel and the pixel arrangement of the extracted pixel group, the pixel arrangement of the extracted pixel group corresponding to the target sub-pixel is determined. Based on the row and column positions corresponding to the position information of the target sub-pixel, the sub-display area to which the target sub-pixel belongs is determined; The extraction coefficient matrix corresponding to the target sub-pixel is determined based on the pixel arrangement of the extraction pixel group corresponding to the target sub-pixel and the sub-display area to which the target sub-pixel belongs; The extracted pixel group corresponding to the target sub-pixel is determined based on the row and column positions corresponding to the position information of the target sub-pixel, the pixel arrangement of the extracted pixel group corresponding to the target sub-pixel, and the position information of the sub-pixel in the sub-display area to which the target sub-pixel belongs.

7. The optical data determination method according to claim 6, characterized in that, The display area is divided into multiple edge sub-display areas and a central sub-display area, with the multiple edge sub-display areas surrounding the central sub-display area.

8. The optical data determination method according to claim 4, characterized in that, The step of acquiring the position information of each color sub-pixel in the display panel and labeling the sub-pixels by row and column includes: Optical data of each sub-pixel in the display panel are obtained when the display panel displays different primary color dot matrix images of the second preset grayscale. Based on the optical data of each sub-pixel in the display panel under the primary color dot matrix image, determine the position information corresponding to the primary color sub-pixel in the display panel; The sub-pixels are labeled with rows and columns based on their position information in the display panel.

9. The optical data determination method according to claim 8, characterized in that, Based on the optical data of each sub-pixel in the display panel under the primary color dot matrix image, determine the position information corresponding to the primary color sub-pixels in the display panel, including: Based on the actual position of the lit primary color sub-pixels in the display panel under the primary color dot matrix image, the position information with errors in the pre-stored initial position information table is corrected.

10. The optical data determination method according to claim 8, characterized in that, The second preset grayscale includes at least one grayscale within the range of 8-64 grayscale.

11. The optical data determination method according to claim 1, characterized in that, The acquisition of initial optical data corresponding to the location of each sub-pixel on the display panel under a white screen at the first preset grayscale includes: The initial optical data corresponding to the location of each sub-pixel on the display panel under a white screen with the first preset grayscale is obtained by a monochrome optical device.

12. An optical data determining device, characterized in that, include: The acquisition module is used to acquire the initial optical data of the display panel corresponding to the position of each sub-pixel under the white screen of the first preset gray level; The determining module is used to determine the actual optical data corresponding to the target sub-pixel under the first preset grayscale based on the initial optical data and preset rules corresponding to each sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel; Wherein, the extracted pixel group corresponding to the target sub-pixel includes the target sub-pixel and its surrounding sub-pixels; the target sub-pixel is any one of the sub-pixels in the display panel; The step of determining the actual optical data of the target sub-pixel at the first preset grayscale based on the initial optical data and preset rules corresponding to each sub-pixel in the extracted pixel group corresponding to the target sub-pixel in the display panel includes: Based on the initial optical data corresponding to each sub-pixel in the extraction pixel group corresponding to the target sub-pixel in the display panel, the extraction coefficient matrix corresponding to the target sub-pixel, and the preset rule, the actual optical data corresponding to the target sub-pixel under the first preset grayscale is determined; Wherein, the extraction coefficient matrix includes luminance weight coefficients corresponding to each of the sub-pixels in the extracted pixel group; the preset rule includes a calculation rule for determining actual optical data corresponding to a target sub-pixel according to the initial optical data corresponding to each of the sub-pixels in the extracted pixel group corresponding to the target sub-pixel in the display panel and the extraction coefficient matrix corresponding to the target sub-pixel; The extraction coefficient matrix comprises an N×N matrix, the extracted pixel group comprises N×N sub-pixels continuously arranged in a row direction and continuously arranged in a column direction, the target sub-pixel is the p-th sub-pixel in the row direction and the q-th sub-pixel in the column direction in the extracted pixel group, wherein 1<p<N, 1<q<N, and N is a positive integer greater than or equal to 3; The preset rules include: Multiplying an initial optical data matrix corresponding to the extracted pixel group corresponding to the target sub-pixel by an extraction coefficient matrix corresponding to the target sub-pixel, and taking the obtained product as a transfer matrix; wherein the initial optical data matrix corresponding to the extracted pixel group includes initial optical data corresponding to each of the sub-pixels in the extracted pixel group; Determining, according to element values in the transfer matrix, actual optical data corresponding to the target sub-pixel under the first preset gray scale; The step of determining the actual optical data corresponding to the target sub-pixel under the first preset gray scale according to the element values in the transfer matrix comprises: Determining the actual optical data corresponding to the target sub-pixel according to the magnitude relationship between the absolute value of the difference between a sum of first setting row elements and a sum of second setting row elements and the absolute value of the difference between a sum of first setting column elements and a sum of second setting column elements in the transfer matrix; Wherein, the first setting row at least comprises the first row, and the second setting row at least comprises the N-th row; The first setting column at least comprises the first column, and the second setting column at least comprises the N-th column.

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