Pixel data voltage determination method, display panel driving method, and display device

Abstract

The present application discloses a method for determining the data voltage of a pixel in a display panel, a method for driving the display panel, and a display device, the method comprising: if a current grayscale value of a target pixel is greater than a preset grayscale value, obtaining an average data voltage difference between pixels in the kth row and pixels in the kth row based on the first data voltage of each pixel in the kth row and the first data voltage of each pixel in the k-1th row; obtaining a grayscale compensation value of the target pixel based on the average data voltage difference between pixels in the kth row and pixels in the k-1th row and the current grayscale value of the target pixel, the target pixel being located in the kth row; obtaining a target grayscale value of the target pixel based on the current grayscale value and the grayscale compensation value of the target pixel; and obtaining a second data voltage of the target pixel based on the target grayscale value of the target pixel as the data voltage of the target pixel, so as to alleviate line crosstalk and improve display quality.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a method for determining a data voltage of a pixel in a display panel, a method for driving a display panel, and a display device. Background Art

[0002] With the development of display technology, the use of display panels has become increasingly common and has become an indispensable part of people's daily work and life. Compared with traditional liquid crystal display (LCD) panels, AMOLED (Active-matrix organic light-emitting diode) display panels offer faster response times, higher contrast, and lower energy consumption. They also support a wider color gamut and thinner screen designs, making them one of the preferred display technologies for smartphones and other portable devices. However, current AMOLED display panels can experience crosstalk when displaying a portion of the image, affecting the display quality and, consequently, the user experience. Summary of the Invention

[0003] In view of the above problems, the present application provides a method for determining the data voltage of a pixel in a display panel, a method for driving a display panel, and a display device to alleviate the crosstalk phenomenon and improve display quality. The specific solution is as follows:

[0004] A method for determining a data voltage of a pixel in a display panel, wherein the display panel includes N pixel rows, each pixel row includes M pixels, and N and M are both greater than 1. The method comprises:

[0005] If the current grayscale value of the target pixel is greater than the preset grayscale value, an average data voltage difference between the pixels in the kth row and the pixels in the k-1th row is obtained based on the first data voltage of each pixel in the kth row and the first data voltage of each pixel in the k-1th row, where k is greater than 1 and not greater than N, and the first data voltage of each pixel is a data voltage determined based on the display brightness requirement of each pixel;

[0006] Obtaining a grayscale compensation value of a target pixel based on an average data voltage difference between pixels in the kth row and pixels in the k-1th row and a current grayscale value of the target pixel, the target pixel being located in the kth row;

[0007] Obtaining a target grayscale value of the target pixel based on the current grayscale value and the grayscale compensation value of the target pixel;

[0008] Based on the target grayscale value of the target pixel, a second data voltage of the target pixel is obtained and recorded as a target data voltage.

[0009] A display method for a display panel, comprising:

[0010] Determine the target data voltage of each pixel in the display panel using the above method for determining the data voltage of the pixel in the display panel;

[0011] When the pixel row where each pixel is located is scanned, a data signal is provided to each pixel based on the target data voltage corresponding to each pixel to control the display of each pixel.

[0012] A display device, comprising:

[0013] A display panel, the display panel comprising N pixel rows, each pixel row comprising M pixels, where N and M are both greater than 1;

[0014] A driving circuit, which uses the above-mentioned method for determining the data voltage of pixels in the display panel to determine the target data voltage of each pixel in the display panel, and when scanning the pixel row where each pixel is located, provides a data signal to each pixel based on the target data voltage corresponding to each pixel to control the display of each pixel.

[0015] In the data voltage determination method provided in the embodiment of the present application, when calculating the grayscale compensation value of the target pixel, it is determined based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row, rather than the average grayscale difference between the pixels in the kth row and the pixels in the k-1th row. This solves the problem of inaccurate grayscale compensation calculation caused by different data voltage changes corresponding to the same grayscale changes in different grayscale areas, improves the matching degree between the target data voltage and the data voltage required by the target pixel, alleviates the line crosstalk phenomenon, improves display quality, and thus improves user experience.

[0016] Moreover, in the data voltage determination method provided in the embodiment of the present application, when determining the grayscale compensation value based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row, the current grayscale value of the target pixel is also taken into account, thereby reducing the probability that the current grayscale values ​​of different display pixels in adjacent rows of display pixels are different and the same grayscale compensation value is provided, resulting in poor compensation effect of display pixels in some positions, further improving the matching degree between the target data voltage and the data voltage required by the target pixel, alleviating the line crosstalk phenomenon, and improving the display quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0018] Figure 1 Schematic diagram of grayscale difference between display pixels at some positions in adjacent rows of display pixels when the background is grayscale 255 (medium brightness gray);

[0019] Figure 2 Schematic diagram of grayscale difference between display pixels at some positions in adjacent rows of display pixels when the background is grayscale 128 (medium brightness gray);

[0020] Figure 3 is a schematic diagram of average grayscale differences and corresponding grayscale compensation amounts for different data voltages;

[0021] Figure 4 A schematic structural diagram of a display panel provided in one embodiment of the present application;

[0022] Figure 5 A flowchart of a method for determining a data voltage of a pixel in a display panel provided in one embodiment of the present application;

[0023] Figure 6 A flowchart of a method for determining a data voltage of a pixel in a display panel provided by another embodiment of the present application;

[0024] Figure 7 A schematic diagram of five brightness nodes (Band1, Band2, Band3, Band4, and Band5) and their corresponding brightness information, brightness gain storage locations, and brightness gain values ​​in a method for determining the data voltage of a pixel in a display panel provided in one embodiment of the present application;

[0025] Figure 8 A schematic diagram of three position nodes (Up, Middle, DOWN) and their corresponding position gain storage locations and position gain values ​​in a method for determining a data voltage of a pixel in a display panel provided by one embodiment of the present application;

[0026] Figure 9 A schematic diagram of the relative positions of three position nodes (Up, Middle, Down) in a display panel in a method for determining a data voltage of a pixel in a display panel provided in one embodiment of the present application;

[0027] Figure 10 A schematic diagram of calculating the luminance gain of a target pixel by using linear interpolation when the target pixel is not located in a luminance gain reference pixel row in a method for determining a data voltage of a pixel in a display panel provided by one embodiment of the present application;

[0028] Figure 11A schematic diagram of calculating the position gain of a target pixel by using linear interpolation when the target pixel is not located in a position gain reference pixel row in a method for determining a data voltage of a pixel in a display panel provided by one embodiment of the present application;

[0029] Figure 12 A schematic diagram of a method for calculating a grayscale compensation value of a target pixel in a method for determining a data voltage of a pixel in a display panel provided by one embodiment of the present application;

[0030] Figure 13 A schematic diagram of some brightness nodes in the first database and the second database in a method for determining the data voltage of a pixel in a display panel provided by one embodiment of the present application;

[0031] Figure 14 A schematic diagram of some position nodes in the first database and the second database in a method for determining the data voltage of a pixel in a display panel provided by one embodiment of the present application;

[0032] Figure 15 A flowchart of a method for driving a display panel provided in one embodiment of the present application;

[0033] Figure 16 A schematic structural diagram of a display device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] It will be apparent to those skilled in the art that various modifications and variations can be made in this application without departing from the spirit or scope of this application. Therefore, this application is intended to cover modifications and variations of this application that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the embodiments provided in the examples of this application can be combined with each other without contradiction.

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] As described in the background technology section, current AMOLED display panels may experience line crosstalk when displaying images, which affects the quality of the displayed images and thus affects the user experience.

[0038] This is because the quality of the display image of an organic light-emitting diode (OLED) display panel is usually affected by the stability of the OLED display panel's anode voltage (ELVDD). When there is interference on the ELVDD voltage, the display image will be distorted or even display abnormalities. When an AMOLED display panel displays a color image (i.e., a non-pure color image), its data voltage needs to constantly jump. In the display panel's wiring, there is a coupling path between the data line that provides the data voltage and the anode line that provides the anode voltage. Therefore, the data voltage jump on the data line will affect the anode voltage on the anode line, and the anode voltage on the anode line will in turn affect the data voltage on the data line, thereby affecting the brightness of the current display pixel. As a result, when the AMOLED display panel displays part of the display image, line crosstalk (line crosstalk) occurs, affecting the quality of the display image.

[0039] like Figure 1 and Figure 2 As shown, Figure 1 and Figure 2 The figure shows the grayscale difference between the display pixels at different positions along the row direction in two adjacent rows of display pixels. Figure 1 The figure shows a schematic diagram of the grayscale difference of display pixels at different positions in adjacent rows of display pixels when the background is 255 grayscale (white), such as the grayscale difference between the S-th display pixel in the R-th row of display pixels and the S-th display pixel in the R+1-th row of display pixels. R and S are positive integers, and different black bar areas correspond to different S values. The white background represents 255 grayscales, and the length of the black area represents the magnitude of the grayscale difference. The longer the black area, the larger the corresponding grayscale difference. Specifically, the grayscale difference corresponding to the black bar area A is smaller than the grayscale difference corresponding to the black bar area B, which is smaller than the grayscale difference corresponding to the black bar area C.

[0040] like Figure 2 As shown, Figure 2 The figure shows the grayscale difference of display pixels at some positions in adjacent rows of display pixels when the background is 128 grayscale (medium-brightness gray). The gray background represents 128 grayscales, and the length of the black area represents the magnitude of the grayscale difference. The longer the black area, the larger the corresponding grayscale difference. Specifically, the grayscale difference corresponding to the black bar area D is smaller than the grayscale difference corresponding to the black bar area E, which is smaller than the grayscale difference corresponding to the black bar area F.

[0041] The solution to the line crosstalk phenomenon currently adopted is an overall compensation approach. Specifically, the average grayscale difference of the data voltages corresponding to the display pixels in two adjacent rows is first calculated. Then, based on the average grayscale difference of the data voltages corresponding to the display pixels in two adjacent rows, the compensation amount of the data voltage is determined by looking up a table.

[0042] like Figure 3 As shown, Figure 3 A schematic diagram showing the average grayscale difference of different data voltages and their corresponding compensation amounts is shown. Figure 3 It can be seen that the greater the average grayscale difference of the data voltage, the greater the compensation amount. This solution will result in better compensation effects at pixels whose grayscale difference is closer to the average grayscale difference in adjacent rows of display pixels in the display image, and worse compensation effects at pixels whose grayscale difference is farther from the average grayscale difference. For example, if the average grayscale difference is 10, the compensation effect at a pixel with a grayscale difference of 9 is better than that at a pixel with a grayscale difference of 15, which is better than that at a pixel with a grayscale difference of 4.

[0043] In addition, the grayscale value corresponding to each display pixel and its corresponding data voltage value are not in a completely proportional relationship. In different grayscale areas, the change in the data voltage corresponding to the same grayscale change is different. For example, if the high grayscale area changes by 10 grayscales, the corresponding data voltage change may be 1V, and if the low grayscale area changes by 10 grayscales, the corresponding data voltage change may be 1.5V. That is, the average grayscale difference between two adjacent rows of display pixels cannot accurately represent the change in the data voltage corresponding to the two adjacent rows of display pixels, so that the compensation effect obtained by the above solution needs to be improved.

[0044] In view of this, an embodiment of the present application provides a method for determining the data voltage of a pixel in a display panel, such as Figure 4 As shown, the display panel includes N pixel rows, each pixel row includes M pixels, N and M are both greater than 1, optionally, the N pixel rows are arranged along a first direction X, and the M pixels are arranged along a second direction Y, the second direction Y is different from the first direction X, specifically, the second direction Y may be perpendicular to the first direction X. In this embodiment, Figure 5 As shown, the method includes:

[0045] S1: If the current grayscale value of the target pixel is greater than the preset grayscale value, based on the first data voltage of each pixel in the kth row and the first data voltage of each pixel in the k-1th row, obtain the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row, k is greater than 1 and not greater than N, and the first data voltage of each pixel is a data voltage determined based on the display brightness requirement of each pixel.

[0046] Specifically, in one embodiment of the present application, obtaining the average data voltage between the pixels in the kth row and the pixels in the k-1th row based on the first data voltage of each pixel in the kth row and the first data voltage of each pixel in the k-1th row includes:

[0047] Obtaining an average data voltage of pixels in the kth row based on the first data voltage of each pixel in the kth row;

[0048] Obtaining an average data voltage of pixels in the k-1th row based on the first data voltages of the pixels in the k-1th row;

[0049] Based on the average data voltage of the pixels in the kth row and the average data voltage of the pixels in the k-1th row, an average data voltage difference between the pixels in the kth row and the pixels in the k-1th row is obtained.

[0050] It should be noted that, in the above embodiment, the first data voltage of each pixel in the k-th row is a data voltage determined based on the display brightness requirement of the k-th row, that is, a data voltage determined based on the display information carried in the image data information of each pixel in the k-th row; the first data voltage of each pixel in the k-1-th row is a data voltage determined based on the display brightness requirement of the k-1-th row, that is, a data voltage determined based on the display information carried in the image data information of each pixel in the k-1-th row.

[0051] Since the display information carried in the image information corresponding to each pixel is mainly grayscale information, in one embodiment of the present application, Figure 6 As shown, the method also includes: obtaining the first data voltage of each pixel in the k-th row based on the first grayscale value of each pixel in the k-th row, and obtaining the first data voltage of each pixel in the k-1-th row based on the first grayscale value of each pixel in the k-1-th row. Specifically, based on the first grayscale value carried in the image data corresponding to each pixel in the k-th row, the first data voltage of each pixel in the k-th row is obtained, and based on the first grayscale value carried in the image data corresponding to each pixel in the k-1-th row, the first data voltage of each pixel in the k-1-th row is obtained.

[0052] Specifically, the current actual display brightness of the pixel is the product of the current grayscale value of the pixel and the brightness parameter, and the brightness parameter is the maximum display brightness information of the display panel, such as the brightness bar information in the device where the display panel is located. It should be noted that when the current grayscale value of the pixel is the same, if the brightness parameters of the display panel are different, the actual display brightness of the pixel is different. Specifically, the brightness parameter of the display panel can be set based on the user's usage requirements. For example, in an environment with strong light, the user can set the brightness parameter of the display panel to be lower to reduce power consumption. In an environment with weak light, the user can set the brightness parameter of the display panel to be higher to improve the recognition of the displayed image.

[0053] Therefore, in one embodiment of the present application, Figure 6 As shown, based on the first grayscale value of each pixel in the k-th row, obtaining the first data voltage of each pixel in the k-th row includes:

[0054] Obtaining, from a first database, a first data voltage for each pixel in the k-th row based on a first grayscale value and a brightness parameter of each pixel in the k-th row, wherein the brightness parameter represents brightness information corresponding to a maximum grayscale value, that is, brightness information corresponding to a grayscale of 255 under a current brightness bar setting of the display panel;

[0055] The first database stores data voltages corresponding to a plurality of brightness nodes and a plurality of grayscale nodes.

[0056] Similarly, continue as Figure 6 As shown, in one embodiment of the present application, obtaining the first data voltage of each pixel in the k-1th row based on the first grayscale value of each pixel in the k-1th row includes:

[0057] Obtaining, from a third database, a first data voltage for each pixel in the k-1th row based on a first grayscale value and a brightness parameter of each pixel in the k-1th row, wherein the brightness parameter represents brightness information corresponding to a maximum grayscale value, that is, brightness information corresponding to a grayscale of 255 under a current brightness bar setting of the display panel;

[0058] The third database stores data voltages corresponding to a plurality of brightness nodes and a plurality of grayscale nodes.

[0059] It should be noted that in the above embodiment, the first database and the third database can be the same database to simplify the determination method, but this application does not limit this. In other embodiments of the present application, the first database and the third database can also be different databases, and this application does not limit this, depending on the specific circumstances.

[0060] The following describes the determination method provided in the embodiment of the present application by taking the first database and the third database as the same database as an example.

[0061] In order to simplify the storage capacity of the first database, thereby reducing the space required for the determination method provided in the embodiments of the present application during operation, in one embodiment of the present application, the first database stores data voltages corresponding to some brightness nodes and some grayscale nodes. Specifically, the first database can be a two-dimensional table, where the abscissa of the two-dimensional table represents the grayscale nodes, the ordinate represents the brightness nodes, and the intersection of each abscissa and each ordinate represents the data voltage corresponding to the combination of the grayscale node and the brightness node.

[0062] Specifically, in one embodiment of the present application, if the first grayscale value belongs to one of the multiple grayscale nodes, and the brightness parameter belongs to one of the multiple brightness nodes, a data voltage corresponding to a combination of the first grayscale value and the brightness parameter is obtained by searching the first database;

[0063] If the first grayscale value does not belong to one of the plurality of grayscale nodes, and the brightness parameter belongs to one of the plurality of brightness nodes, obtaining a data voltage corresponding to a combination of an adjacent node of the first grayscale value and the brightness parameter in the first database by searching the first database, and then obtaining a data voltage corresponding to the first grayscale value and the brightness parameter by linear interpolation;

[0064] If the first grayscale value belongs to one of the plurality of grayscale nodes and the brightness parameter does not belong to one of the plurality of brightness nodes, a data voltage corresponding to a combination of the first grayscale value and an adjacent brightness node of the brightness parameter in the first database is obtained by searching the first database, and a data voltage corresponding to the first grayscale value and the brightness parameter is obtained by linear interpolation;

[0065] If the first grayscale value does not belong to one of the multiple grayscale nodes, and the brightness parameter does not belong to one of the multiple brightness nodes, the data voltage corresponding to the combination of the adjacent node of the first grayscale value in the first database and the adjacent brightness node of the brightness parameter in the first database is obtained by searching the first database, and then the data voltage corresponding to the first grayscale value and the brightness parameter is obtained by linear interpolation calculation.

[0066] In another embodiment of the present application, the first database may also store data voltages corresponding to all brightness nodes and all grayscale nodes to reduce the computational complexity of the determination method. In this embodiment, the data voltage corresponding to the first grayscale value and brightness parameter combination is obtained by directly searching the first database.

[0067] S2: Obtaining a grayscale compensation value of a target pixel based on an average data voltage difference between pixels in the kth row and pixels in the k-1th row and a current grayscale value of the target pixel, the target pixel being located in the kth row.

[0068] Optionally, in one embodiment of the present application, obtaining the grayscale compensation value of the target pixel based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row and the current grayscale value of the target pixel includes: obtaining the grayscale compensation value of the target pixel by querying a fourth database based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row and the current grayscale value of the target pixel. Specifically, the fourth database is a two-dimensional line crosstalk compensation table, wherein one input parameter is the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row, and the other parameter is the current grayscale value of the target pixel. Optionally, the fourth database uses CTB 2D LUT1, which refers to a two-dimensional lookup table (2D Lookup Table) used in color conversion.

[0069] Based on the above embodiments, in one embodiment of the present application, the method further comprises: determining a grayscale compensation value range for each pixel in the display panel based on the grayscale compensation value required for the area with the most severe linear crosstalk in the display image of the display panel, so that the determination method provided by the embodiment of the present application can take into account display images with different linear crosstalk levels of the display panel, and can also take into account display panels with different linear crosstalk levels, thereby improving the compatibility of the determination method provided by the embodiment of the present application. Specifically, in one embodiment of the present application, the grayscale compensation value of each pixel in the display panel can range from -8 grayscale to 8 grayscale. In another embodiment of the present application, the grayscale compensation value of each pixel in the display panel can range from -16 grayscale to 16 grayscale. This application is not limited to this. The grayscale compensation value range depends on the grayscale compensation value required for the area with the most severe linear crosstalk in the display image of the display panel. For example, for a display panel or display image with very severe linear crosstalk, a larger grayscale compensation value range is used to obtain a higher compensation value. For a display panel or display image with relatively mild linear crosstalk, a smaller grayscale compensation value range is used to obtain a higher compensation accuracy.

[0070] Optionally, in one embodiment of the present application, the value range of the grayscale compensation value of each pixel in the display panel can cover the grayscale compensation value required for the area with the most serious line crosstalk in the display image of the display panel, so as to ensure that the display of each line crosstalk area in the display image of the display panel can be better compensated, but the present application does not limit this, and it depends on the specific situation.

[0071] It should be noted that, in actual applications, only one grayscale compensation value range may be set in the same display panel, or multiple grayscale compensation value ranges may be set. This application does not limit this, and the specific situation may vary.

[0072] In the data voltage determination method provided in the embodiment of the present application, when calculating the grayscale compensation value of the target pixel, it is determined based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row, rather than the average grayscale difference between the pixels in the kth row and the pixels in the k-1th row. This solves the problem of inaccurate grayscale compensation calculation caused by different data voltage changes corresponding to the same grayscale changes in different grayscale areas, improves the matching degree between the target data voltage and the data voltage required by the target pixel, alleviates the line crosstalk phenomenon, improves display quality, and thus improves user experience.

[0073] Moreover, in the data voltage determination method provided in the embodiment of the present application, when determining the grayscale compensation value based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row, the current grayscale value of the target pixel is also taken into account, thereby reducing the probability that the current grayscale values ​​of different display pixels in adjacent rows of display pixels are different and the same grayscale compensation value is provided, resulting in poor compensation effect of display pixels in some positions, further improving the matching degree between the target data voltage and the data voltage required by the target pixel, alleviating the line crosstalk phenomenon, and improving the display quality.

[0074] Optionally, in one embodiment of the present application, continue as Figure 6 As shown, based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row and the current grayscale value of the target pixel, obtaining the grayscale compensation value of the target pixel includes:

[0075] Obtaining a first grayscale compensation value based on an average data voltage difference between pixels in the kth row and pixels in the k-1th row and a current grayscale value of the target pixel;

[0076] The first grayscale compensation value is adjusted to obtain a grayscale compensation value of the target pixel.

[0077] The data voltage determination method provided in the embodiment of the present application first obtains a first grayscale compensation value based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row and the current grayscale value of the target pixel, and then adjusts the first grayscale compensation value to obtain the grayscale compensation value of the target pixel, so as to further improve the accuracy of the obtained grayscale compensation value of the target pixel, thereby further improving the matching degree between the target data voltage and the data voltage required by the target pixel, further alleviating the line crosstalk phenomenon, and improving the display quality.

[0078] It should be noted that, under the premise that the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row and the current grayscale value of the target pixel are the same, the position of the target pixel in the N pixel rows is different, and the grayscale compensation value required by the target pixel may also be different. Therefore, in one embodiment of the present application, Figure 6 As shown, adjusting the first grayscale compensation value to obtain the grayscale compensation value of the target pixel includes: adjusting the first grayscale compensation value using the position gain and brightness gain of the target pixel to obtain a second grayscale compensation value.

[0079] Moreover, in actual applications, line crosstalk exists not only in adjacent rows of display pixels, but also in non-adjacent rows of display pixels. Moreover, the line crosstalk effects between different pixel rows are different. The farther the distance between two pixel rows, the smaller the line crosstalk effect. The closer the distance between two pixel rows, the greater the line crosstalk effect. Therefore, in one embodiment of the present application, continue as follows Figure 6 As shown, adjusting the first grayscale compensation value to obtain the grayscale compensation value of the target pixel further includes: adjusting the second grayscale compensation value using a line crosstalk gain to obtain the grayscale compensation value of the target pixel.

[0080] The determination method provided in the embodiment of the present application first adjusts the first grayscale compensation value based on the position gain and brightness gain of the target pixel, and then performs a second adjustment based on the line crosstalk gain to further improve the accuracy of the grayscale compensation value of the target pixel, thereby further improving the matching degree between the target data voltage and the data voltage required by the target pixel, further alleviating the line crosstalk phenomenon, and improving the display quality.

[0081] On the basis of any of the above embodiments, in one embodiment of the present application, the N pixel rows include a plurality of brightness gain reference pixel rows and a plurality of position gain reference pixel rows arranged along the first direction, such as Figure 7-Figure 9 As shown, Figure 7 shows the brightness gain of some reference pixel rows, Figure 8 and Figure 9 The position gain of some position reference pixel rows is shown. Specifically, Figure 7 5 brightness nodes (Band1, Band2, Band3, Band4, Band5) and their corresponding brightness information, brightness gain storage location, and brightness gain value are shown; Figure 8 3 position nodes (Up, Middle, Down) and their corresponding position gain storage locations and position gain values ​​are shown. In this embodiment, the method further includes:

[0082] Determining the brightness gain of the target pixel based on the brightness gain of the reference pixel rows in the N pixel rows;

[0083] The position gain of the target pixel is determined based on the position gain of the reference pixel rows in the N pixel rows.

[0084] Optionally, based on the above embodiments, in one embodiment of the present application, if the target pixel is located in a luminance gain reference pixel row, the gain of the luminance gain reference pixel row where the target pixel is located is the luminance gain of the target pixel; if the target pixel is not located in the luminance gain reference pixel row, the luminance gain of the target pixel is calculated based on the luminance gains of the luminance gain reference pixel rows located on both sides of the target pixel along the first direction.

[0085] like Figure 10As shown, in one embodiment of the present application, if the target pixel is not located in the brightness gain reference pixel row, calculating the brightness gain of the target pixel based on the brightness gains of the brightness gain reference pixel rows located on both sides of the target pixel along the first direction includes: if the target pixel is not located in the brightness gain reference pixel row, calculating the brightness gain of the target pixel using linear interpolation based on the brightness gains of the brightness gain reference pixel rows located on both sides of the target pixel along the first direction. For example, continuing as Figure 10 As shown, the pixel row where the target pixel D1 is located is located between the w-th brightness gain reference pixel row and the w-1-th brightness gain reference pixel row, then the brightness gain of the target pixel D1 is calculated based on the brightness gain DVB_Gain_w of the w-th brightness gain reference pixel row and the brightness gain DVB_Gain_w-1 of the w-1-th brightness gain reference pixel row by linear interpolation.

[0086] Based on the above embodiments, in one embodiment of the present application, the N pixel rows include multiple brightness gain reference pixel rows, and the brightness gain reference pixel rows are evenly arranged along the first direction in the N pixel rows, but the present application is not limited to this. In other embodiments of the present application, the brightness gain reference pixel rows may not be evenly arranged along the first direction in the multiple pixel rows, depending on the specific circumstances.

[0087] Similarly, if the target pixel is located in the position gain reference pixel row, the gain in the position gain reference direction where the target pixel is located is the position gain of the target pixel; if the target pixel is not located in the position gain reference direction, the position gain of the target pixel is calculated based on the position gains of the position gain reference pixel rows located on both sides of the target pixel along the first direction.

[0088] Optionally, in one embodiment of the present application, Figure 9 As shown, the first pixel row (Up) and the last pixel row (Down) arranged along the first direction among the N pixel rows are the position gain reference pixel rows, and the first direction points to the area where the circuit board of the display panel is located (i.e., the lower frame area of ​​the display panel) within the plane of the display panel. In other embodiments of the present application, the middle pixel row (Middle) between the first pixel row and the last pixel row can also be selected as the position gain reference pixel row among the N pixel rows.

[0089] Specifically, in one embodiment of the present application, Figure 11As shown, if the target pixel is not located in the position gain reference pixel row, the position gain of the target pixel is calculated based on the position gains of the position gain reference pixel rows located on both sides of the target pixel along the first direction, including: if the target pixel is not located in the position gain reference pixel row, the position gain of the target pixel is obtained by linear interpolation calculation based on the upward position gains of the position gain reference rows located on both sides of the target pixel along the first direction.

[0090] For example, continue as Figure 11 As shown, if the pixel row where the target pixel D2 is located is between the position gain reference pixel row Up and the position gain reference pixel row Middle, the position gain of the target pixel D2 is calculated based on the position gain Pos_Gain_1 of the position gain reference pixel row Up and the position gain Pos_Gain_2 of the position gain reference pixel row Middle through linear interpolation; if the pixel row where the target pixel D3 is located is between the position gain reference pixel row Down and the position gain reference pixel row Middle, the position gain of the target pixel D3 is calculated based on the position gain Pos_Gain_3 of the position gain reference pixel row Down and the position gain Pos_Gain_2 of the position gain reference pixel row Middle through linear interpolation.

[0091] On the basis of any of the above embodiments, in one embodiment of the present application, the average data voltages of the pixels in the k-1th row and the pixels in the kth row are different, and the second grayscale compensation value is adjusted in different ways using the line crosstalk gain. Optionally, in one embodiment of the present application, continue as follows Figure 6 As shown, adjusting the second grayscale compensation value by using the line crosstalk gain includes:

[0092] If the average data voltage difference between the pixels in the k-1th row and the pixels in the kth row is greater than zero, using the first gain to compensate the second grayscale value to obtain the grayscale compensation value of the target pixel;

[0093] If the average data voltage difference between the pixels in the k-1th row and the pixels in the kth row is less than zero, using a second gain to obtain a grayscale compensation value for the target pixel from the second grayscale compensation value;

[0094] The first gain is a positive gain, and the second gain is a negative gain.

[0095] The inventors have found that, in practical applications, line crosstalk primarily affects the display quality of four adjacent rows of display pixels. Therefore, in one embodiment of the present application, if N is greater than 4 and k is greater than 1, the second grayscale compensation value is adjusted using the line crosstalk gain. The grayscale compensation value of the target pixel obtained includes:

[0096] Based on the second grayscale compensation value of the k-2th row and its corresponding line crosstalk gain weight value, the second grayscale compensation value of the k-1th row and its corresponding line crosstalk gain weight value, the second grayscale compensation value of the kth row and its corresponding line crosstalk gain weight value, and the second grayscale compensation value of the k+1th row and its corresponding line crosstalk gain weight value, the grayscale compensation value of the target pixel is obtained.

[0097] like Figure 12 As shown, Figure 12 The figure shows the influence of each pixel row on the grayscale compensation value of the current row when the number of rows affected by line crosstalk is four; wherein,

[0098] LCTBO[k] represents the second grayscale compensation value of the k-th pixel row, LCTBO[k-1] represents the second grayscale compensation value of the k-1-th pixel row, LCTBO[k-2] represents the second grayscale compensation value of the k-2-th pixel row, and LCTBO[k-3] represents the second grayscale compensation value of the k-3-th pixel row;

[0099] LineGain represents the weight of the line crosstalk gain, j represents the relative row, specifically, LineGain[j-1] represents the weight of the line crosstalk gain of the pixel row in the previous row of the current row to the pixel row in the current row, that is, LineGain[j-1] represents the weight of the second grayscale compensation value of the pixel row in the previous row of the current row in the grayscale compensation value of the pixel row in the current row, LineGain[j-1]×LCTBO[k] represents the weight of the second grayscale compensation value of the pixel row in the previous row of the current row in the grayscale compensation value of the pixel row in the current row multiplied by the second grayscale compensation value of the pixel row in the previous row of the current row; LineGain[j] represents the weight of the second grayscale compensation value of the current row in the grayscale compensation value of the current row; LineGain[j+1] represents the weight of the second grayscale compensation value of the row below the current row in the grayscale compensation value of the current row; LineGain[j+2] represents the weight of the second grayscale compensation value of the row below the current row in the grayscale compensation value of the current row.

[0100] Specifically, in one embodiment of the present application, the target pixel is located in the k-1th pixel row, then the grayscale compensation value of the target pixel is: LCTBO_F(k-1)=LineGain[j+2]×LCTBO[k-3]+LineGain[j+1]×LCTBO[k-2]+LineGain[j]×LCTBO[k-1]+LineGain[j-1]×LCTBO[k]

[0101] It should be noted that, in the above embodiment, the method for calculating the grayscale compensation value of the target pixel is described by taking the influence of line crosstalk as an example, fixing the influence of line crosstalk on four adjacent rows of display pixels, but the present application is not limited to this. In other embodiments of the present application, the method provided in the embodiment of the present application can also be used to fix the influence of line crosstalk on T adjacent rows of display pixels to calculate the grayscale compensation value of the target pixel, depending on the specific situation, where T is a positive integer.

[0102] S3: Obtaining a target grayscale value of the target pixel based on the current grayscale value and the grayscale compensation value of the target pixel.

[0103] Optionally, in one embodiment of the present application, based on the current grayscale value and grayscale compensation value of the target pixel, obtaining the target grayscale value of the target pixel includes: summing the current grayscale value and grayscale compensation value of the target pixel to obtain the target grayscale value of the target pixel.

[0104] S4: Based on the target grayscale value of the target pixel, obtain a second data voltage of the target pixel, recorded as a target data voltage, for providing a data voltage to the target pixel.

[0105] Optionally, in one embodiment of the present application, obtaining the second data voltage of the target pixel based on the target grayscale value of the target pixel includes: obtaining the second data voltage of the target pixel through a second database based on the target grayscale value and brightness parameter of the target pixel, wherein the second database stores data voltages corresponding to each grayscale value and each brightness parameter.

[0106] It should be noted that since the first data voltage is mainly used to calculate the grayscale compensation value of the target pixel, and the second data voltage is the supply voltage actually displayed by the target pixel, the determination method provided in the embodiment of the present application has a lower accuracy of the first data voltage of each pixel than the second data voltage of the target pixel. The first database can store data voltages corresponding to some grayscale nodes and brightness nodes, and the data voltages corresponding to other grayscale nodes and brightness nodes are obtained by linear interpolation.

[0107] like Figure 13 and Figure 14 As shown, Figure 13 Shows the number of some brightness nodes in the second database and the first database, Figure 14 The number of grayscale nodes in the second database and the first database is shown. Figure 13 and Figure 14It can be seen that the number of brightness nodes and the number of grayscale nodes in the first database are much smaller than the number of brightness nodes and the number of grayscale nodes in the second database. Optionally, in one embodiment of the present application, the number of brightness nodes in the first database is half the number of brightness nodes in the second database, and the number of grayscale nodes in the first database is half the number of grayscale nodes in the second database, so as to maximize the accuracy of the obtained first data voltage of each pixel while reducing the number of brightness nodes and the number of grayscale nodes in the first database. However, this application does not impose a limitation on this, and the specific situation will depend on the circumstances.

[0108] Based on any of the above embodiments, in one embodiment of the present application, the method further includes: if the current grayscale value of the target pixel is not greater than the preset grayscale value, then the current grayscale value of the target pixel is the target grayscale value of the target pixel. That is, in this embodiment, if the current grayscale value of the target pixel is not greater than the preset grayscale value, the grayscale value of the target pixel is not compensated, so as to avoid the calculated grayscale compensation value being greater than the current grayscale value of the target pixel, over-compensating the target pixel, and reducing the display quality of the display panel. It should be noted that the present application does not limit the specific numerical value of the preset grayscale value, which will be determined according to the specific circumstances.

[0109] In summary, in the data voltage determination method provided in the embodiment of the present application, when calculating the grayscale compensation value of the target pixel, it is determined based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row, rather than the average grayscale difference between the pixels in the kth row and the pixels in the k-1th row. This solves the problem of inaccurate grayscale compensation amount calculation caused by different data voltage changes corresponding to the same grayscale changes in different grayscale areas, improves the matching degree between the target data voltage and the data voltage required by the target pixel, alleviates the line crosstalk phenomenon, improves the display quality, and thus improves the user experience.

[0110] Moreover, in the data voltage determination method provided in the embodiment of the present application, when determining the grayscale compensation value based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row, the current grayscale value of the target pixel is also taken into account, thereby reducing the probability that the current grayscale values ​​of different display pixels in adjacent rows of display pixels are different and the same grayscale compensation value is provided, resulting in poor compensation effect of display pixels in some positions, further improving the matching degree between the target data voltage and the data voltage required by the target pixel, alleviating the line crosstalk phenomenon, and improving the display quality.

[0111] Accordingly, the embodiment of the present application also provides a display method of a display panel, such as Figure 15 As shown, the method includes:

[0112] S10: Determine a target data voltage for each pixel in the display panel using the method for determining the data voltage of the pixel in the display panel provided in any one of the above embodiments;

[0113] S20: When scanning the pixel row where each pixel is located, providing a data signal to each pixel based on the target data voltage corresponding to each pixel to control the display of each pixel.

[0114] Specifically, in one embodiment of the present application, determining the target data voltage of each pixel in the display panel using the method for determining the data voltage of a pixel in the display panel provided by any of the above embodiments includes: taking each pixel in the display panel as a target pixel one by one, and using the method for determining the data voltage of a pixel in the display panel provided by any of the above embodiments to obtain the target data voltage of the target pixel, thereby obtaining the target data voltage of each pixel in the display panel. It should be noted that since the method for obtaining the target data voltage of the target pixel using the method for determining the data voltage of a pixel in the display panel provided by any of the above embodiments has been described in detail in the above embodiments, it will not be repeated here. For details, reference may be made to the description of the method for determining the data voltage of a pixel in the display panel provided by any of the above embodiments.

[0115] The display method of the display panel provided in the embodiment of the present application provides a data signal to each pixel based on the target data voltage corresponding to each pixel when scanning the pixel row where each pixel is located and controlling the display of each pixel. This can improve the matching degree between the data voltage actually provided to each pixel and the required data voltage of each pixel, improve the quality of the display picture of the display panel, and thus improve the user experience.

[0116] In addition, the embodiment of the present application also provides a display device, which can be a mobile phone, tablet computer, laptop computer, television, or other device with display function. The present application does not limit this, and the specific situation depends on the specific situation. Specifically, as shown in the figure, the display device includes:

[0117] A display panel 100 includes N pixel rows, each pixel row includes M pixels, where N and M are both greater than 1. Optionally, the N pixel rows are arranged along a first direction X, and the M pixels are arranged along a second direction Y, where the second direction Y is different from the first direction X. Specifically, the second direction Y may be perpendicular to the first direction X.

[0118] A driving circuit 200, which uses the method for determining the data voltage of pixels in a display panel provided by any of the above embodiments to determine the target data voltage of each pixel in the display panel, and when scanning the pixel row where each pixel is located, provides a data signal to each pixel based on the target data voltage corresponding to each pixel to control the display of each pixel.

[0119] Specifically, in one embodiment of the present application, the display panel includes a plurality of pixel circuits, which correspond one-to-one to the pixels and are used to output data signals to the corresponding pixels based on the target data voltage provided by the driving circuit when scanning the pixel row where each pixel is located, thereby controlling the display of the pixel.

[0120] Since the method for determining the data voltage of the pixel in the display panel provided by any of the above embodiments has been described in detail in the above embodiments, it will not be repeated here. For details, please refer to the description of the method for determining the data voltage of the pixel in the display panel provided by any of the above embodiments.

[0121] It should be noted that in one embodiment of the present application, compared with the first database storing data voltages corresponding to all brightness nodes and all grayscale nodes, the first database storing data voltages corresponding to some brightness nodes and some grayscale nodes can reduce the space required for the driving circuit.

[0122] In summary, in the display device provided by the embodiments of the present application, the driving circuit can utilize the method for determining the data voltage of pixels in the display panel provided by any of the above embodiments to determine the target data voltage of each pixel in the display panel, and when scanning the pixel row where each pixel is located, provide a data signal to each pixel based on the target data voltage corresponding to each pixel to control the display of each pixel, thereby improving the matching degree between the data voltage actually provided to each pixel and the required data voltage of each pixel, improving the quality of the display picture of the display panel, and thus improving the user experience.

[0123] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on the differences from other embodiments, and reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For relevant parts, refer to the description of the methods.

[0124] It should be noted that in the description of this application, it should be understood that the description of the drawings and embodiments is illustrative rather than restrictive. The same figure numbers throughout the embodiments of the specification identify the same structure. In addition, for the purpose of understanding and ease of description, the drawings may exaggerate the thickness of some layers, films, panels, regions, etc. It is also understood that when an element such as a layer, film, region or substrate is referred to as "on" another element, the element may be directly on the other element or there may be an intermediate element. In addition, "on" refers to positioning an element on or below another element, but does not essentially mean positioning on the upper side of another element according to the direction of gravity.

[0125] The terms "upper," "lower," "top," "bottom," "inner," "outer," and the like, indicating positions or locations, are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this application. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0126] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the article or device comprising the aforementioned elements.

[0127] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for determining a data voltage of a pixel in a display panel, wherein the display panel includes N pixel rows, each pixel row includes M pixels, and N and M are both greater than 1, characterized in that: The method includes: If the current grayscale value of the target pixel is greater than the preset grayscale value, an average data voltage difference between the pixels in the kth row and the pixels in the k-1th row is obtained based on the first data voltage of each pixel in the kth row and the first data voltage of each pixel in the k-1th row, where k is greater than 1 and not greater than N, and the first data voltage of each pixel is a data voltage determined based on the display brightness requirement of each pixel; Obtaining a grayscale compensation value of a target pixel based on an average data voltage difference between pixels in the kth row and pixels in the k-1th row and a current grayscale value of the target pixel, the target pixel being located in the kth row; Obtaining a target grayscale value of the target pixel based on the current grayscale value and the grayscale compensation value of the target pixel; Based on the target grayscale value of the target pixel, obtaining a second data voltage of the target pixel, recorded as a target data voltage; Wherein, obtaining the grayscale compensation value of the target pixel based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row and the current grayscale value of the target pixel includes: obtaining a first grayscale compensation value based on the average data voltage difference between the pixels in the kth row and the pixels in the k-1th row and the current grayscale value of the target pixel; and adjusting the first grayscale compensation value to obtain the grayscale compensation value of the target pixel; Adjusting the first grayscale compensation value to obtain the grayscale compensation value of the target pixel includes: adjusting the first grayscale compensation value using the position gain and brightness gain of the target pixel to obtain the second grayscale compensation value; and adjusting the second grayscale compensation value using the line crosstalk gain to obtain the grayscale compensation value of the target pixel.

2. The determination method according to claim 1, characterized in that The second grayscale compensation value is adjusted by using the line crosstalk gain to obtain the grayscale compensation value of the target pixel, which includes: If the average data voltage difference between the pixels in the k-1th row and the pixels in the kth row is greater than zero, using the first gain to compensate the second grayscale value to obtain the grayscale compensation value of the target pixel; If the average data voltage difference between the pixels in the k-1th row and the pixels in the kth row is less than zero, using a second gain to obtain a grayscale compensation value for the target pixel from the second grayscale compensation value; The first gain is a positive gain, and the second gain is a negative gain.

3. The determination method according to claim 1, characterized in that N is greater than 4, k is greater than 2, and the second grayscale compensation value is adjusted using the line crosstalk gain to obtain the grayscale compensation value of the target pixel. Based on the second grayscale compensation value of the k-2th row and its corresponding line crosstalk gain weight value, the second grayscale compensation value of the k-1th row and its corresponding line crosstalk gain weight value, the second grayscale compensation value of the kth row and its corresponding line crosstalk gain weight value, and the second grayscale compensation value of the k+1th row and its corresponding line crosstalk gain weight value, the grayscale compensation value of the target pixel is obtained.

4. The determination method according to claim 1, characterized in that The N pixel rows include a plurality of brightness gain reference pixel rows and a plurality of position gain reference pixel rows arranged along a first direction, and the method further includes: Determining the brightness gain of the target pixel based on the brightness gain of the reference pixel rows in the N pixel rows; The position gain of the target pixel is determined based on the position gain of the reference pixel rows in the N pixel rows.

5. The determination method according to claim 4, characterized in that: If the target pixel is located in a luminance gain reference pixel row, the gain of the luminance gain reference pixel row where the target pixel is located is the luminance gain of the target pixel; If the target pixel is not located in the luminance gain reference pixel row, calculating the luminance gain of the target pixel based on the luminance gains of the luminance gain reference pixel rows located on both sides of the target pixel along the first direction; If the target pixel is located in a position gain reference pixel row, the gain of the position gain reference pixel row where the target pixel is located is the position gain of the target pixel; If the target pixel is not located in the position gain reference pixel row, the position gain of the target pixel is calculated based on the position gains of the position gain reference pixel rows located on both sides of the target pixel along the first direction.

6. The determination method according to claim 5, characterized in that: The brightness gain reference pixel rows are uniformly arranged along the first direction among the N pixel rows; The first pixel row and the last pixel row arranged along the first direction among the N pixel rows are the position gain reference pixel rows.

7. The determination method according to claim 5, characterized in that: If the target pixel is not located in the luminance gain reference pixel row, calculating the luminance gain of the target pixel based on the luminance gains of the luminance gain reference pixel rows located on both sides of the target pixel along the first direction includes: If the target pixel is not located in the brightness gain reference pixel row, the brightness gain of the target pixel is calculated by linear interpolation based on the brightness gains of the brightness gain reference pixel rows located on both sides of the target pixel along the first direction; If the target pixel is not located in the position gain reference pixel row, calculating the position gain of the target pixel based on the position gains of the position gain reference pixel rows located on both sides of the target pixel along the first direction includes: If the target pixel is not located in the position gain reference pixel row, the position gain of the target pixel is calculated by linear interpolation based on the position gains of the position gain reference pixel rows located on both sides of the target pixel along the first direction.

8. The determination method according to claim 1, characterized in that: Obtaining an average data voltage difference between pixels in the kth row and pixels in the k-1th row based on the first data voltage of each pixel in the kth row and the first data voltage of each pixel in the k-1th row includes: Obtaining an average data voltage of pixels in the kth row based on the first data voltage of each pixel in the kth row; Based on the first data voltage of each pixel in the k-1th row, the average data voltage of the pixels in the k-1th row is obtained. Based on the average data voltage of the pixels in the kth row and the average data voltage of the pixels in the k-1th row, an average data voltage difference between the pixels in the kth row and the pixels in the k-1th row is obtained.

9. The determination method according to claim 8, characterized in that: The method further includes: The first data voltage of each pixel in the kth row is obtained based on the first grayscale value of each pixel in the kth row, and the first data voltage of each pixel in the k-1th row is obtained based on the first grayscale value of each pixel in the k-1th row.

10. The determination method according to claim 9, characterized in that: Obtaining a first data voltage of each pixel in the k-th row based on the first grayscale value of each pixel in the k-th row includes: Obtaining, through a first database, a first data voltage for each pixel in the kth row based on a first grayscale value and a brightness parameter of each pixel in the kth row, wherein the brightness parameter represents brightness information corresponding to a maximum grayscale value; The first database stores data voltages corresponding to a plurality of brightness nodes and a plurality of grayscale nodes.

11. The determination method according to claim 10, characterized in that: If the first grayscale value belongs to one of the plurality of grayscale nodes, and the brightness parameter belongs to one of the plurality of brightness nodes, obtaining a data voltage corresponding to the first grayscale value and the brightness parameter by searching the first database; If the first grayscale value does not belong to one of the multiple grayscale nodes, and / or the brightness parameter does not belong to one of the multiple brightness nodes, the data voltage corresponding to the adjacent nodes of the first grayscale value and / or the brightness parameter is obtained by searching the first database, and the data voltage corresponding to the first grayscale value and the brightness parameter is obtained by linear interpolation calculation.

12. The determination method according to claim 1, characterized in that: Obtaining a second data voltage of the target pixel based on a target grayscale value of the target pixel includes: Based on the target grayscale value and brightness parameter of the target pixel, obtaining a second data voltage of the target pixel through a second database; The second database stores data voltages corresponding to various grayscale values ​​and brightness parameters.

13. The determination method according to claim 1, characterized in that: The method further includes: If the current grayscale value of the target pixel is not greater than the preset grayscale value, the current grayscale value of the target pixel is the target grayscale value of the target pixel.

14. A display method for a display panel, characterized in that: include: Determine a target data voltage for each pixel in the display panel using the method for determining a data voltage for a pixel in a display panel according to any one of claims 1 to 13; When the pixel row where each pixel is located is scanned, a data signal is provided to each pixel based on the target data voltage corresponding to each pixel to control the display of each pixel.

15. A display device, characterized in that: include: A display panel, the display panel comprising N pixel rows, each pixel row comprising M pixels, where N and M are both greater than 1; A driving circuit, wherein the driving circuit utilizes the method for determining the data voltage of a pixel in a display panel according to any one of claims 1 to 13 to determine a target data voltage for each pixel in the display panel, and when scanning a pixel row where each pixel is located, provides a data signal to each pixel based on the target data voltage corresponding to each pixel to control the display of each pixel.

Images