A display panel debugging method and a debugging device

Abstract

The application discloses a display panel debugging method and a debugging device. The display panel debugging method comprises the following steps: determining a first function relationship between driving data and color coordinates of a sub-pixel of each light-emitting color; acquiring actual color coordinates of the display panel; and determining an adjustment amount of the driving data of the sub-pixel of each light-emitting color according to target color coordinates of the display panel, the actual color coordinates and the first function relationship of the sub-pixel of each light-emitting color. The embodiment of the application can shorten the gamma debugging time length of the display panel and improve the debugging efficiency.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a debugging method and device for a display panel. Background Technology

[0002] Before leaving the factory, the display panel needs to undergo gamma calibration to determine the driving data of the display panel. However, the existing gamma calibration is time-consuming. Summary of the Invention

[0003] This invention provides a debugging method and device for display panels to shorten the gamma debugging time of display panels and improve debugging efficiency.

[0004] According to one aspect of the present invention, a method for debugging a display panel is provided, comprising:

[0005] Determine the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color;

[0006] Obtain the actual color coordinates of the display panel;

[0007] The driving data adjustment amount for each sub-pixel of the emitting color is determined based on the target color coordinates, actual color coordinates, and the first functional relationship between the sub-pixels of each emitting color on the display panel.

[0008] Optionally, the driving data adjustment amount for each sub-pixel of the emitted color is determined based on the target color coordinates, actual color coordinates, and the first functional relationship between the sub-pixels of each emitted color on the display panel, including:

[0009] Determine a first difference between the x-coordinate of the target color coordinate and the x-coordinate of the actual color coordinate, and a second difference between the y-coordinate of the target color coordinate and the y-coordinate of the actual color coordinate;

[0010] The adjustment amount of the driving data for each sub-pixel of the emitted color is determined based on the first difference, the second difference, the functional relationship between the driving data of each sub-pixel of the emitted color and the abscissa of the chromatic coordinate, and the functional relationship between the driving data of each sub-pixel of the emitted color and the ordinate of the chromatic coordinate.

[0011] Optionally, the adjustment amount of the driving data for each sub-pixel of the emitted color is determined based on the first difference, the second difference, the functional relationship between the driving data of the sub-pixel of each emitted color and the abscissa of the chromatic coordinate, and the functional relationship between the driving data of the sub-pixel of each emitted color and the ordinate of the chromatic coordinate, including:

[0012] Based on the functional relationship between the driving data of each sub-pixel of the luminous color and the abscissa of the color coordinate, calculate the first change in the abscissa of the color coordinate at the actual abscissa position when the driving data of each sub-pixel of the luminous color changes by the minimum amount.

[0013] The second change in the ordinate of the color coordinate is calculated based on the functional relationship between the driving data of each sub-pixel of the luminous color and the ordinate of the color coordinate at the actual ordinate position, when the driving data of each sub-pixel of the luminous color changes by the minimum amount.

[0014] The driving data adjustment amount of each sub-pixel of the emitted color is determined based on the first difference, the second difference, the first change amount of each sub-pixel of the emitted color, and the second change amount of each sub-pixel of the emitted color.

[0015] Optionally, determining the driving data adjustment amount for each sub-pixel of the emitted color based on the first difference, the second difference, the first change amount of each sub-pixel of the emitted color, and the second change amount of each sub-pixel of the emitted color includes:

[0016] A first relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the first difference, based on the first change amount of each sub-pixel of the emitting color and the second change amount of each sub-pixel of the emitting color; and a second relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the second difference.

[0017] The driving data adjustment amount for each sub-pixel of the emitted color is determined based on the first and second relational expressions.

[0018] Optionally, before determining the driving data adjustment amount of each sub-pixel of the emitted color based on the target color coordinates, actual color coordinates, and the first functional relationship of the sub-pixels of each emitted color of the display panel, the method further includes:

[0019] Determine the second functional relationship between the driving data of each sub-pixel of the emitted color and the emitted brightness;

[0020] The driving data adjustment amount for each sub-pixel of the emitted color is determined based on the target color coordinates, actual color coordinates, and the first functional relationship between the sub-pixels of each emitted color on the display panel, including:

[0021] The driving data adjustment amount for each sub-pixel of the emitting color is determined based on the target color coordinates, the actual color coordinates, the target brightness of the display panel, and the first and second functional relationships of the sub-pixels of each emitting color.

[0022] Optionally, the driving data adjustment amount for each sub-pixel of the emitted color is determined based on the target color coordinates, the actual color coordinates, the target brightness of the display panel, and the first and second functional relationships of the sub-pixels of each emitted color, including:

[0023] Determine a first difference between the x-coordinate of the target color coordinate and the x-coordinate of the actual color coordinate, and a second difference between the y-coordinate of the target color coordinate and the y-coordinate of the actual color coordinate;

[0024] Based on the functional relationship between the driving data of each sub-pixel of the luminous color and the abscissa of the color coordinate, calculate the first change in the abscissa of the color coordinate at the actual abscissa position when the driving data of each sub-pixel of the luminous color changes by the minimum amount.

[0025] The second change in the ordinate of the color coordinate is calculated based on the functional relationship between the driving data of each sub-pixel of the luminous color and the ordinate of the color coordinate at the actual ordinate position, when the driving data of each sub-pixel of the luminous color changes by the minimum amount.

[0026] The third change in luminance is calculated based on the driving data of each sub-pixel of the luminous color and the functional relationship between luminance and luminance at the actual luminance position, when the driving data of each sub-pixel of the luminous color changes by the minimum amount.

[0027] The driving data adjustment amount for each emitting color sub-pixel is determined based on the first difference, the second difference, the target brightness, and the first, second, and third changes of the sub-pixel for each emitting color.

[0028] Optionally, the driving data adjustment amount for each sub-pixel of the emitted color is determined based on the first difference, the second difference, the target brightness, and the first, second, and third changes of the sub-pixels of each emitted color, including:

[0029] Obtain the actual display brightness of the display panel;

[0030] Calculate the third difference between the target brightness and the actual brightness of the display panel;

[0031] When the third difference is less than or equal to the brightness threshold, the sub-pixel to be adjusted is determined according to the third change amount, wherein the sub-pixel to be adjusted includes at least one sub-pixel of emitting color;

[0032] Based on the first change, second change, and third change of the sub-pixel to be adjusted, a first relationship is established between the driving data adjustment amount of the sub-pixel to be adjusted and the first difference; a second relationship is established between the driving data adjustment amount of the sub-pixel to be adjusted and the second difference; and a third relationship is established between the driving data adjustment amount of the sub-pixel to be adjusted and the brightness threshold.

[0033] The driving data adjustment amount of each emitting color sub-pixel is determined according to the first relation, the second relation, and the third relation.

[0034] Alternatively, the driving data adjustment amount for each sub-pixel of the emitted color is determined based on the first difference, the second difference, the target brightness, and the first, second, and third changes of the sub-pixels of each emitted color, including:

[0035] Obtain the actual brightness of the display panel;

[0036] Calculate the third difference between the target brightness and the actual brightness of the display panel;

[0037] When the third difference is greater than the brightness threshold, a first relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the first difference based on the first change amount, the second change amount and the third change amount of each sub-pixel of the emitting color, a second relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the second difference, and a fourth relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the third difference.

[0038] The driving data adjustment amount for each emitting color sub-pixel is determined based on the first relation, the second relation, and the fourth relation.

[0039] Optionally, the display panel includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, wherein the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel all emit different colors.

[0040] The functional relationship between the driving data of the first color sub-pixel and the x-coordinate of the color coordinate is:

[0041] x = 2E-05g + 0.238; where x is the x-coordinate of the color coordinates and g is the driving data of the first color sub-pixel;

[0042] The functional relationship between the driving data of the first color sub-pixel and the ordinate of the color coordinate is as follows:

[0043] y = -1E-06g 2 +0.001g+0.4395; where y is the ordinate of the color coordinates;

[0044] The functional relationship between the driving data of the second color sub-pixel and the x-coordinate of the color coordinate is:

[0045] x = -5E-07r 2 +0.0009b+0.2352; where r is the driving data of the second color sub-pixel;

[0046] The functional relationship between the driving data of the second color sub-pixel and the ordinate of the color coordinate is as follows:

[0047] y = -0.0001r + 0.4166;

[0048] The functional relationship between the driving data of the third color sub-pixel and the x-coordinate of the color coordinate is:

[0049] x = 3E-07b 2 -0.0003b+0.2263; where x is the x-coordinate of the color coordinates, and b is the driving data of the third color sub-pixel;

[0050] The functional relationship between the driving data of the third color sub-pixel and the ordinate of the color coordinate is as follows:

[0051] y = -1E-09b 3 +2E-06b 2 -0.0013b+0.4052; where y is the ordinate of the color coordinate.

[0052] Optionally, the drive data includes register values.

[0053] Optionally, a first functional relationship is determined between the driving data and color coordinates of each sub-pixel of the emitted color, including:

[0054] For each sub-pixel of a light-emitting color, the driving data of the sub-pixels of other light-emitting colors is fixed. Starting from the minimum value of the driving data, the driving data input to the sub-pixel of the light-emitting color is gradually increased until it is increased to the value of the driving data increase. The color coordinates of the display panel are measured after each increase in the driving data.

[0055] The first functional relationship between the driving data and color coordinates of the sub-pixels of the emitted color is determined based on the measured color coordinates and the input driving data.

[0056] According to another aspect of the present invention, a debugging device for a display panel is provided, comprising:

[0057] The first functional relationship determination module is used to determine the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color;

[0058] The actual color coordinate acquisition module is used to obtain the actual color coordinates of the display panel;

[0059] The adjustment amount determination module is used to determine the driving data adjustment amount of each sub-pixel of the emitting color based on the target color coordinates, actual color coordinates, and the first functional relationship between the sub-pixels of each emitting color on the display panel.

[0060] In this embodiment of the invention, during gamma calibration, a first functional relationship between the driving data and color coordinates of each sub-pixel of a luminous color is first determined. Based on the target color coordinates, actual color coordinates of the display panel, and the first functional relationship of each luminous color sub-pixel, the driving data adjustment amount of each luminous color sub-pixel is determined. The first functional relationship quantifies the influence of sub-pixels of different luminous colors on the color coordinates. Therefore, the driving data adjustment amount of the sub-pixel determined by the first functional relationship is closer to the actual required adjustment amount. After adjusting the driving data with the determined driving data adjustment amount, the color coordinates of the display panel approach or directly reach the target color coordinates, which can reduce the number of driving data adjustments, shorten the gamma calibration time, and improve calibration efficiency.

[0061] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0062] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0063] Figure 1 This is a schematic diagram of a debugging method for a display panel provided in an embodiment of the present invention;

[0064] Figure 2 This is a schematic diagram of another debugging method for a display panel provided in an embodiment of the present invention;

[0065] Figure 3 This is a schematic diagram of another debugging method for a display panel provided in an embodiment of the present invention;

[0066] Figure 4 This is a schematic diagram of another debugging method for a display panel provided in an embodiment of the present invention;

[0067] Figure 5 This is a flowchart of another debugging method for a display panel provided in an embodiment of the present invention;

[0068] Figure 6 This is the relationship curve between the driving data and color coordinates of the first color sub-pixel provided in the embodiments of the present invention;

[0069] Figure 7 This is the relationship curve between the driving data and color coordinates of the second color sub-pixel provided in the embodiments of the present invention;

[0070] Figure 8 This is the relationship curve between the driving data and color coordinates of the third color sub-pixel provided in the embodiments of the present invention;

[0071] Figure 9 This is a schematic diagram of a display panel debugging device provided in an embodiment of the present invention. Detailed Implementation

[0072] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0073] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0074] As mentioned in the background section, existing gamma calibration methods are time-consuming. The inventors discovered through research that this problem arises because existing gamma calibration methods, when adjusting the driving data corresponding to a specific grayscale level, first set driving data for the display panel, input the driving data into the display panel, drive the display panel to display that grayscale, then acquire the display panel's brightness, adjust the driving data based on the brightness, input the adjusted driving data back into the display panel, and acquire the display panel's brightness again, until the brightness meets the requirements. Then, the driving data is adjusted again based on the display panel's color coordinates. Each adjustment involves a fixed magnitude of driving data adjustment; that is, the values ​​of the registers for different color sub-pixels increase or decrease by the same amount synchronously, resulting in a long gamma calibration time.

[0075] Based on this, embodiments of the present invention provide a method for debugging a display panel. Figure 1 This is a schematic diagram of a debugging method for a display panel provided in an embodiment of the present invention, for reference. Figure 1 The debugging methods for the display panel include:

[0076] S110. Determine the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color.

[0077] The color coordinates include an abscissa and a ordinate. The first functional relationship for each emitted color includes the functional relationship between the driving data and the abscissa of the color coordinates, as well as the functional relationship between the driving data and the ordinate of the color coordinates. The driving data can be driving voltage or driving current, etc., and can be represented by register values.

[0078] Specifically, for a sub-pixel of a certain luminous color, the driving data input to other sub-pixels of different luminous colors can be kept constant. The driving data input to the sub-pixel of this luminous color can be changed, and the color coordinates of the display panel can be measured. Based on the driving data input to the sub-pixel of this luminous color each time and the measured color coordinates each time, the first functional relationship between the driving data and the color coordinates of the sub-pixel of this luminous color can be determined.

[0079] S120, Obtain the actual color coordinates of the display panel.

[0080] Specifically, the actual color coordinates are the color coordinates that the display panel is currently measured to be, and can be measured using optical equipment.

[0081] S130. Determine the driving data adjustment amount of each sub-pixel of the emitting color based on the target color coordinates, actual color coordinates, and the first functional relationship of each emitting color sub-pixel of the display panel.

[0082] The target color coordinates are the color coordinates that the display panel needs to achieve when displaying the image. The driving data adjustment amount for each sub-pixel of the emitting color is determined based on the target color coordinates, actual color coordinates, and the first function relationship of each emitting color sub-pixel. This can be achieved by determining the color coordinate adjustment amount corresponding to each emitting color sub-pixel based on the difference between the target color coordinates and the actual color coordinates, and the first function relationship of each emitting color sub-pixel; then, the driving data adjustment amount for each emitting color sub-pixel is calculated based on the color coordinate adjustment amount and the corresponding first function relationship.

[0083] For example, taking the x-coordinate of the color coordinates as an example, the change in the x-coordinate of the color coordinates when the driving data of each sub-pixel of the emitted color changes can be determined according to the first functional relationship. When the difference between the target color coordinates and the actual color coordinates is small and requires fine-tuning, only the driving data of the sub-pixels whose changes in the x-coordinate of the color coordinates are small can be adjusted. For example, if only the driving data of a certain color's sub-pixels needs to be adjusted, the adjustment amount of the driving data of the sub-pixels of that color can be determined according to the target color coordinates, the measured color coordinates, and the first functional relationship of the sub-pixels of that color. When the difference between the target color coordinates and the actual color coordinates is large and requires a larger adjustment, only the driving data of the sub-pixels whose changes in the x-coordinate of the color coordinates are large can be adjusted, or the driving data of both the two types of sub-pixels whose changes in the x-coordinate of the color coordinates are large and small can be adjusted simultaneously. When simultaneously adjusting the driving data of subpixels with larger changes in the x-coordinate of the color coordinates (hereinafter referred to as "subpixels with larger changes") and subpixels with smaller changes (hereinafter referred to as "subpixels with smaller changes"), the driving data adjustment amount of the subpixel with larger changes can be determined first by establishing a first functional relationship between the x-coordinate of the target color coordinates and the measured color coordinates. Then, the difference between the x-coordinate of the color coordinates after the driving data adjustment of the larger subpixel and the x-coordinate of the target color coordinates can be calculated. Based on this difference and the driving data adjustment amount of the subpixel with smaller changes, the driving data adjustment amount of the subpixel with smaller changes can be determined.

[0084] In this embodiment of the invention, during gamma calibration, a first functional relationship between the driving data and color coordinates of each sub-pixel of a luminous color is first determined. Based on the target color coordinates, actual color coordinates of the display panel, and the first functional relationship of each luminous color sub-pixel, the driving data adjustment amount of each luminous color sub-pixel is determined. The first functional relationship quantifies the influence of sub-pixels of different luminous colors on the color coordinates. Therefore, the driving data adjustment amount of the sub-pixel determined by the first functional relationship is closer to the actual required adjustment amount. After adjusting the driving data with the determined driving data adjustment amount, the color coordinates of the display panel approach or directly reach the target color coordinates, which can reduce the number of driving data adjustments, shorten the gamma calibration time, and improve calibration efficiency.

[0085] Figure 2 This is a schematic diagram of another display panel debugging method provided in an embodiment of the present invention, see reference. Figure 1 and Figure 2 This embodiment optimizes the debugging method of the display panel based on the above embodiment. Specifically, S130, which determines the driving data adjustment amount of each sub-pixel of the emitting color according to the target color coordinates, actual color coordinates and the first functional relationship of each emitting color sub-pixel of the display panel, is optimized to include: S131, which determines the first difference between the horizontal coordinate of the target color coordinates and the horizontal coordinate of the actual color coordinates, and the second difference between the vertical coordinate of the target color coordinates and the vertical coordinate of the actual color coordinates.

[0086] S132. Based on the first difference, the second difference, the functional relationship between the driving data of each sub-pixel of the emitted color and the horizontal coordinate of the color coordinate, and the functional relationship between the driving data of each sub-pixel of the emitted color and the vertical coordinate of the color coordinate, determine the adjustment amount of the driving data of each sub-pixel of the emitted color. The optimized display panel debugging method includes the following steps:

[0087] S110. Determine the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color.

[0088] S120, Obtain the actual color coordinates of the display panel.

[0089] S131. Determine the first difference between the x-coordinate of the target color coordinate and the x-coordinate of the actual color coordinate, and the second difference between the y-coordinate of the target color coordinate and the y-coordinate of the actual color coordinate.

[0090] S132. Determine the driving data adjustment amount of each sub-pixel of the emitting color based on the first difference, the second difference, the functional relationship between the driving data of each sub-pixel of the emitting color and the horizontal coordinate of the color coordinate, and the functional relationship between the driving data of each sub-pixel of the emitting color and the vertical coordinate of the color coordinate.

[0091] Specifically, based on the functional relationship between the driving data of each sub-pixel of the emitting color and the x-coordinate of the color coordinate, the first change in the x-coordinate of the color coordinate when the driving data of each sub-pixel of the emitting color is adjusted to the minimum value can be determined. Based on the functional relationship between the driving data of each sub-pixel of the emitting color and the y-coordinate of the color coordinate, the second change in the y-coordinate of the color coordinate when the driving data of the sub-pixel is adjusted to the minimum value can be determined. Based on the first difference, the second difference, the first change in the y-coordinate of the color coordinate, and the second change in the y-coordinate of the color coordinate for each sub-pixel, the sub-pixels that need to be adjusted, as well as the corresponding y-coordinate and x-coordinate adjustments for each sub-pixel, can be determined. Finally, the driving data adjustment amount for each sub-pixel can be determined based on the corresponding y-coordinate and x-coordinate adjustments for the sub-pixels that need to be adjusted.

[0092] For example, if the first difference is 0.012, and the first change of the second color sub-pixel is 0.005, the first change of the first color sub-pixel is 0.001, and the first change of the third color sub-pixel is -0.003, it can be determined that the first color sub-pixel and the second color sub-pixel are the sub-pixels that need to be adjusted. The horizontal coordinate adjustment of the color coordinate corresponding to the first color sub-pixel is 0.01, and the horizontal coordinate adjustment of the color coordinate corresponding to the second color sub-pixel is 0.002. Thus, the driving data adjustment amount of the first color sub-pixel and the second color sub-pixel can be determined.

[0093] This invention first determines the first difference between the x-coordinate of the target color coordinate and the x-coordinate of the actual color coordinate, and the second difference between the y-coordinate of the target color coordinate and the y-coordinate of the actual color coordinate. Based on the first difference, the second difference, the functional relationship between the driving data of each sub-pixel of the emitting color and the x-coordinate of the color coordinate, and the functional relationship between the driving data of each sub-pixel of the emitting color and the y-coordinate of the color coordinate, the driving data adjustment amount of each sub-pixel of the emitting color can be determined more accurately and quickly, further improving the debugging speed.

[0094] Figure 3 This is a schematic diagram of another display panel debugging method provided in an embodiment of the present invention, see reference. Figure 2 and Figure 3 This embodiment optimizes the display panel debugging method based on the above embodiment. Specifically, S132, determining the adjustment amount of the driving data of each sub-pixel of the emitting color according to the first difference, the second difference, the functional relationship between the driving data of each sub-pixel of the emitting color and the horizontal coordinate, and the functional relationship between the driving data of each sub-pixel of the emitting color and the vertical coordinate, is optimized to include S1321, S1322, and S1323. The optimized display panel debugging method includes the following steps:

[0095] S110. Determine the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color.

[0096] S120, Obtain the actual color coordinates of the display panel.

[0097] S131. Determine the first difference between the x-coordinate of the target color coordinate and the x-coordinate of the actual color coordinate, and the second difference between the y-coordinate of the target color coordinate and the y-coordinate of the actual color coordinate.

[0098] S1321. Calculate the first change in the abscissa of the luminous color at the actual abscissa position when the change in the driving data of the sub-pixel of each luminous color is minimal, based on the functional relationship between the driving data of the sub-pixel of each luminous color and the abscissa of the chromatic coordinate.

[0099] The first change can be calculated by substituting the actual driving data corresponding to the actual color coordinates into the first functional relationship, and then substituting the sum of the actual driving data and the minimum change into the first functional relationship. For example, the functional relationship between the driving data of the third color sub-pixel and the horizontal coordinate of the color coordinates is: x = 3E-07b 2 -0.0003b+0.2263; where x is the x-coordinate of the color coordinates, and b is the actual driving data corresponding to the actual color coordinates of the third color sub-pixel. Therefore, the first change x3 = 3E-07(b1). 2 -0.0003(b1)+0.2263-[3E-07(b2) 2 [-0.0003(b2)+0.2263], where b2 is the actual driving data corresponding to the actual color coordinates of the third color sub-pixel, and b1 is the sum of the actual driving data of the third color sub-pixel and the minimum change amount. Alternatively, the first change amount can be determined by taking the derivative and substituting it into the form of the actual driving data.

[0100] S1322. Calculate the second change in the ordinate of the color coordinate at the actual ordinate position of the ordinate, based on the functional relationship between the driving data of the sub-pixel of each luminous color and the ordinate of the color coordinate. This is the minimum change in the driving data of the sub-pixel of each luminous color.

[0101] The second change can be calculated by substituting the actual driving data corresponding to the actual color coordinates into the first functional relationship, and then substituting the sum of the actual driving data and the minimum change into the first functional relationship. For example, the functional relationship between the driving data of the third color sub-pixel and the ordinate of the color coordinates is: y = -1E-09b 3 +2E-06b 2 -0.0013b+0.4052; where y is the ordinate of the color coordinates; then the second change is 3 2 3 2y3=-1E-09(b1)+2E-06(b1)-0.0013(b1)+0.4052-[-1E-09(b2)+2E-06(b2)-0.0013(b2)+0.4052]. Alternatively, the second change can also be determined by taking the derivative and substituting it into the form of the actual driving data.

[0102] S1323. Determine the driving data adjustment amount of each light-emitting color sub-pixel based on the first difference, the second difference, the first change amount of each light-emitting color sub-pixel, and the second change amount of each light-emitting color sub-pixel.

[0103] Specifically, the driving data adjustment amount of each sub-pixel of the emitting color can be set as an unknown quantity. A system of equations can be established based on the first change amount, the second change amount, the driving data adjustment amount, the first difference, and the second difference of each sub-pixel of the emitting color. The driving data adjustment amount of each sub-pixel of the emitting color can be determined by solving the system of equations.

[0104] This invention quantifies the influence of sub-pixels of different emitting colors on color coordinates by determining the changes in the abscissa and ordinate of the color coordinates when the driving data of each sub-pixel of a certain emitting color changes. The adjustment amount of the driving data of the sub-pixel is determined by the change amount, the first difference, and the second difference. This makes the determined adjustment amount closer to the actual required adjustment amount. After adjusting the driving data by the determined adjustment amount, the color coordinates of the display panel are close to or directly reach the target color coordinates. This can reduce the number of times the driving data is adjusted, shorten the gamma debugging time, and improve debugging efficiency.

[0105] Based on the above embodiments, optionally, determining the driving data adjustment amount of each sub-pixel of the emitted color according to the first difference, the second difference, the first change amount of each sub-pixel of the emitted color, and the second change amount of each sub-pixel of the emitted color includes:

[0106] A first relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the first difference, based on the first change amount of each sub-pixel of the emitting color and the second change amount of each sub-pixel of the emitting color; and a second relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the second difference.

[0107] The driving data adjustment amount for each sub-pixel of the emitted color is determined based on the first and second relational formulas.

[0108] For example, the display panel includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. Let the driving data adjustment amount of the first color sub-pixel be G, the first change amount be x1, and the second change amount be y1; let the driving data adjustment amount of the second color sub-pixel be R, the first change amount be x2, and the second change amount be y2; let the driving data adjustment amount of the third color sub-pixel be B, the first change amount be x3, and the second change amount be y3; let the first difference be X, and the second difference be Y. Then the first relationship is X = G*x1 + R*x2 + B*x3, and the second relationship is Y = G*y1 + R*y2 + B*y3. The values ​​of G, R, and B can be determined by assignment or other methods.

[0109] In this embodiment, a first relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the first difference, based on the first change amount and the second change amount of each sub-pixel of the emitting color. A second relationship is also established between the driving data adjustment amount of each sub-pixel of the emitting color and the second difference. Based on the first and second relationships, the driving data adjustment amount of each sub-pixel of the emitting color can be determined quickly and accurately.

[0110] Figure 4 This is a schematic diagram of another display panel debugging method provided in an embodiment of the present invention, see reference. Figure 1 and Figure 4 This embodiment optimizes the display panel debugging method based on the above embodiment. Specifically, before S130, determining the driving data adjustment amount of each luminous color sub-pixel according to the target color coordinates, actual color coordinates, and the first functional relationship of each luminous color sub-pixel, the following step is added: S100, determining the second functional relationship between the driving data of each luminous color sub-pixel and the luminous brightness; and S130, determining the driving data adjustment amount of each luminous color sub-pixel according to the target color coordinates, actual color coordinates, and the first functional relationship of each luminous color sub-pixel, is optimized to: S133, determining the driving data adjustment amount of each luminous color sub-pixel according to the target color coordinates, actual color coordinates, target brightness of the display panel, and the first and second functional relationships of each luminous color sub-pixel. The optimized display panel debugging method includes the following steps:

[0111] S100, Determine the second functional relationship between the driving data of each sub-pixel of the emitted color and the emitted brightness.

[0112] Specifically, for each sub-pixel of a light-emitting color, the driving data input to sub-pixels of other light-emitting colors can be fixed, the driving data input to the sub-pixel of that light-emitting color can be changed, and the luminance of the display panel can be measured. Based on the driving data input to the sub-pixel of that light-emitting color each time and the measured luminance each time, a second functional relationship between the driving data and the luminance of the sub-pixel of that light-emitting color can be determined.

[0113] S110. Determine the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color.

[0114] S120, Obtain the actual color coordinates of the display panel.

[0115] S133. Determine the driving data adjustment amount of each sub-pixel of the emitting color based on the target color coordinates, actual color coordinates, target brightness of the display panel, and the first and second functional relationships of the sub-pixels of each emitting color.

[0116] Specifically, the first and second changes of each sub-pixel of the emitted color can be calculated. Based on the first and second changes of each sub-pixel of the emitted color, a first relationship between the driving data adjustment amount of each sub-pixel of the emitted color and the first difference can be established, as well as a second relationship between the driving data adjustment amount of each sub-pixel of the emitted color and the second difference can be established. The driving data adjustment amount can be determined based on the first relationship, the second relationship, the target brightness, and the second functional relationship.

[0117] For example, the actual brightness of the display panel can be detected when detecting the actual color coordinates to determine whether the actual brightness meets the target brightness of the display panel (i.e., whether the difference between the actual brightness and the target brightness is less than a set threshold). If it meets the target brightness, the sub-pixels that need to have their driving data adjusted can be determined according to the second function. For example, the sub-pixels that cause the smallest change in the brightness of the display panel when adjusting the driving data can be selected for adjustment according to the relationship of the second function. This simplifies the first and second formulas, allowing the driving data adjustment amount to be quickly calculated according to the first and second formulas. If the actual brightness does not meet the target brightness, the third difference between the actual brightness and the target brightness can be calculated. Based on the driving data adjustment amount, the driving data when the display panel displays the actual brightness and actual color coordinates (i.e., the current driving data), and the second function, the brightness adjustment amount can be calculated. Assuming the brightness adjustment amount is equal to the third difference, a relationship between the driving data adjustment amount and the third difference is established. The driving data adjustment amount for each emitting color sub-pixel is determined according to the first formula, the second formula, and the relationship between the driving data adjustment amount and the third difference.

[0118] The solution in this embodiment takes into account the second functional relationship between the driving data and the luminance of each sub-pixel, as well as the target brightness of the display panel, when determining the driving data adjustment amount. This allows the luminance of the display panel to be taken into account when determining the driving data adjustment amount, thereby improving the accuracy of the driving data adjustment amount and shortening the gamma debugging time.

[0119] Figure 5 This is a flowchart of another display panel debugging method provided in an embodiment of the present invention, see reference. Figure 4 and Figure 5 This embodiment is based on the above embodiment and optimizes the debugging method of the display panel. Specifically, S133 is optimized to include S1331, S1332, S1333, and S1334. The optimized debugging method of the display panel includes:

[0120] S100, Determine the second functional relationship between the driving data of each sub-pixel of the emitted color and the emitted brightness.

[0121] S110. Determine the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color.

[0122] S120, Obtain the actual color coordinates of the display panel.

[0123] S1331. Determine the first difference between the horizontal coordinate of the target color coordinate and the horizontal coordinate of the actual color coordinate, and the second difference between the vertical coordinate of the target color coordinate and the vertical coordinate of the actual color coordinate.

[0124] S1332. Calculate the first change in the abscissa of the luminous color at the actual abscissa position when the change in the driving data of the sub-pixel of each luminous color is minimal, based on the functional relationship between the driving data of the sub-pixel of each luminous color and the abscissa of the chromatic coordinate.

[0125] S1333. Calculate the second change in the ordinate of the color coordinate at the actual ordinate position of the ordinate, based on the functional relationship between the driving data of the sub-pixel of each luminous color and the ordinate of the color coordinate. This is the minimum change in the driving data of the sub-pixel of each luminous color.

[0126] S1334. Calculate the third change in luminance at the actual luminance position when the change in the driving data of each sub-pixel of the luminance color is minimal, based on the functional relationship between the driving data of each sub-pixel of the luminance color and the luminance.

[0127] The third change of each sub-pixel of a given luminous color can be calculated by substituting the actual driving data of that sub-pixel corresponding to its actual color coordinates into the second functional relationship, and then substituting the sum of the actual driving data of that sub-pixel and the minimum change into the second functional relationship. For example, the functional relationship between the driving data of the third color sub-pixel and the luminance is: z = f(b); where z is the luminance. Then the third change z3 = f(b1) - f(b2). Alternatively, the third change can also be determined by taking the derivative and substituting it into the actual driving data.

[0128] S1335. Determine the driving data adjustment amount of each sub-pixel of the emitting color based on the first difference, the second difference, the target brightness, and the first change, the second change, and the third change of the sub-pixel of each emitting color.

[0129] Specifically, a first relationship can be established between the driving data adjustment amount and the first difference of each sub-pixel of the emitting color based on the first change amount, the second change amount, and the third change amount of each sub-pixel of the emitting color; a second relationship can be established between the driving data adjustment amount and the second difference of each sub-pixel of the emitting color; and a relationship can be established between the driving data adjustment amount and the target brightness of each sub-pixel of the emitting color. The driving data adjustment amount can be calculated based on the first relationship, the second relationship, and the relationship between the driving data adjustment amount and the target brightness.

[0130] This embodiment determines the driving data adjustment amount of each emitting color sub-pixel based on the first difference, the second difference, the target brightness, and the first, second, and third changes of the sub-pixel of each emitting color, so that the determined driving data adjustment amount can simultaneously meet the color coordinate and brightness requirements, further shortening the debugging time.

[0131] The following provides two implementation methods for determining the driving data adjustment amount of each emitting color sub-pixel based on the first difference, the second difference, the target brightness, and the first, second, and third changes of each emitting color sub-pixel.

[0132] One implementation involves determining the driving data adjustment amount for each sub-pixel of a emitted color based on the first difference, the second difference, the target brightness, and the first, second, and third changes of the sub-pixels of each emitted color, including:

[0133] S1. Obtain the actual display brightness of the display panel.

[0134] S2. Calculate the third difference between the target brightness and the actual brightness of the display panel.

[0135] S3. When the third difference is less than or equal to the brightness threshold, the sub-pixel to be adjusted is determined according to the third change amount, wherein the sub-pixel to be adjusted includes at least one sub-pixel of emitting color.

[0136] S4. Based on the first change, second change, and third change of the sub-pixel to be adjusted, establish a first relationship between the driving data adjustment amount of the sub-pixel to be adjusted and the first difference, establish a second relationship between the driving data adjustment amount of the sub-pixel to be adjusted and the second difference, and establish a third relationship between the driving data adjustment amount of the sub-pixel to be adjusted and the brightness threshold.

[0137] S5. Determine the driving data adjustment amount of each emitting color sub-pixel according to the first relation, the second relation, and the third relation.

[0138] Specifically, when performing gamma adjustment on the display panel, the brightness is generally adjusted to the target brightness first. In this embodiment, if the display panel's luminous brightness has already been adjusted to the target brightness when determining the adjustment amount of the driving data based on the color coordinates (i.e., the third difference is less than the brightness threshold), then the driving data determined based on the color coordinates should minimize its impact on the display panel's luminous brightness. Determining the sub-pixel to be adjusted based on the third change amount can involve selecting the sub-pixel with the smaller third change amount as the sub-pixel to be adjusted. For example, the number of luminous colors of the sub-pixel to be adjusted is less than the number of luminous colors of the sub-pixels included in the display panel. For instance, if the display panel includes sub-pixels with three different luminous colors, then the sub-pixel to be adjusted can include sub-pixels with two luminous colors.

[0139] The brightness threshold is a predefined known value, representing the deviation between the actual luminous brightness allowed by the display panel and the target brightness. By establishing a third relationship between the driving data adjustment amount of the sub-pixel to be adjusted and the brightness threshold, the brightness change after adjusting the display panel's driving data using the calculated driving data adjustment amount is less than or equal to the brightness threshold, thus avoiding excessive deviation between the display panel's luminous brightness and the target brightness after adjusting the driving data. For example, let the driving data adjustment amount of the first color sub-pixel be G, and the third change amount be z1; the driving data adjustment amount of the second color sub-pixel be R, and the third change amount be z2; the driving data adjustment amount of the third color sub-pixel be B, and the third change amount be z3, with a brightness threshold of Z1. Then the third relationship is Z1 ≥ G*z1 + R*z2 + B*z3.

[0140] In this embodiment, only the driving data adjustment amount of the sub-pixel to be adjusted is unknown in the first and second relational formulas, which reduces the number of unknowns in the first and second relational formulas. Furthermore, by combining the first and second relational formulas with the third relational formula, the driving data adjustment amount can be calculated quickly and accurately. It can also be ensured that after adjusting the driving data according to the driving data adjustment amount, the luminous brightness of the display panel is close to or the same as the target brightness, and the color coordinates are close to or the same as the target color coordinates, further shortening the gamma debugging time.

[0141] Another implementation involves determining the driving data adjustment amount for each sub-pixel of the emitted color based on a first difference, a second difference, the target brightness, and a first change, a second change, and a third change of the sub-pixel of each emitted color, including:

[0142] S1. Obtain the actual brightness of the display panel;

[0143] S2. Calculate the third difference between the target brightness and the actual brightness of the display panel;

[0144] S6. When the third difference is greater than the brightness threshold, establish a first relationship between the driving data adjustment amount of each sub-pixel of the emitting color and the first difference based on the first change amount, the second change amount and the third change amount of each sub-pixel of the emitting color, establish a second relationship between the driving data adjustment amount of each sub-pixel of the emitting color and the second difference, and establish a fourth relationship between the driving data adjustment amount of each sub-pixel of the emitting color and the third difference.

[0145] S7. Determine the driving data adjustment amount of each emitting color sub-pixel according to the first relation, the second relation, and the fourth relation.

[0146] Specifically, when the third difference is greater than the brightness threshold, the luminance of the display panel differs significantly from the target brightness, requiring further adjustments. A fourth relationship is established between the driving data adjustment amount of each sub-pixel of the luminous color and the third difference. This relationship is then combined with the first and second relationships to determine the driving data adjustment amount. This ensures that the determined driving data adjustment amount can simultaneously adjust both the color coordinates and the luminance, making the adjusted color coordinates closer to the target color coordinates and the adjusted luminance closer to the target brightness, further shortening the gamma adjustment time.

[0147] For example, let the driving data adjustment amount of the first color sub-pixel be G, and the third change amount be z1; the driving data adjustment amount of the second color sub-pixel be R, and the third change amount be z2; the driving data adjustment amount of the third color sub-pixel be B, the third change amount be z3, and the third difference be Z2. Then the fourth relation is Z2 = G*z1 + R*z2 + B*z3.

[0148] Based on the above embodiments, optionally, the display panel includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, wherein the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel all emit different colors.

[0149] Figure 6 This is the relationship curve between the driving data and color coordinates of the first color sub-pixel provided in this embodiment of the invention. Figure 7 This is the relationship curve between the driving data and color coordinates of the second color sub-pixel provided in this embodiment of the invention. Figure 8 This is the relationship curve between the driving data and color coordinates of the third color sub-pixel provided in the embodiments of the present invention, for reference. Figures 6-8 The functional relationship between the driving data of the first color sub-pixel and the horizontal coordinate of the color coordinate is:

[0150] x = 2E-05g + 0.238; where x is the x-coordinate of the color coordinates and g is the driving data of the first color sub-pixel;

[0151] The functional relationship between the driving data of the first color sub-pixel and the ordinate of the color coordinate is as follows:

[0152] y = -1E-06g 2 +0.001g+0.4395; where y is the ordinate of the color coordinates;

[0153] The functional relationship between the driving data of the second color sub-pixel and the x-coordinate of the color coordinate is:

[0154] x = -5E-07r 2 +0.0009b+0.2352; where r is the driving data of the second color sub-pixel;

[0155] The functional relationship between the driving data of the second color sub-pixel and the ordinate of the color coordinate is as follows:

[0156] y = -0.0001r + 0.4166;

[0157] The functional relationship between the driving data of the third color sub-pixel and the x-coordinate of the color coordinate is:

[0158] x = 3E-07b 2 -0.0003b+0.2263; where x is the x-coordinate of the color coordinates, and b is the driving data of the third color sub-pixel;

[0159] The functional relationship between the driving data of the third color sub-pixel and the ordinate of the color coordinate is as follows:

[0160] y = -1E-09b 3 +2E-06b 2 -0.0013b+0.4052; where y is the ordinate of the color coordinate.

[0161] For example, the first color sub-pixel can be a green sub-pixel, the second color sub-pixel can be a red sub-pixel, and the third color sub-pixel can be a blue sub-pixel. Figure 6 The horizontal axis represents the driving data g of the first color sub-pixel. Figure 7 The horizontal axis represents the driving data r of the second color sub-pixel. Figure 8 The horizontal axis represents the driving data b of the third color sub-pixel. Figures 6-8 The vertical axis represents the color coordinate.

[0162] Optionally, the drive data includes register values.

[0163] Based on the above embodiments, optionally, determining the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color includes:

[0164] For each sub-pixel of a light-emitting color, the driving data of the sub-pixels of other light-emitting colors is fixed. Starting from the minimum value of the driving data, the driving data input to the sub-pixel of the light-emitting color is gradually increased until it is increased to the maximum value of the driving data. The color coordinates of the display panel are measured after each increase in the driving data.

[0165] The first functional relationship between the driving data and color coordinates of the sub-pixels of the emitted color is determined based on the measured color coordinates and the input driving data.

[0166] Specifically, when determining the first function of a sub-pixel of a certain color, the driving data of sub-pixels of other colors can be fixed as the driving data corresponding to a certain gray level. For example, it can be any gray level from 0 to 255.

[0167] This invention also provides a device for debugging a display panel. Figure 9 This is a schematic diagram of a display panel debugging device provided in an embodiment of the present invention. Figure 9 The debugging device 200 for the display panel includes:

[0168] The first functional relationship determination module 210 is used to determine the first functional relationship between the driving data and color coordinates of the sub-pixels of each luminous color;

[0169] The actual color coordinate acquisition module 220 is used to acquire the actual color coordinates of the display panel;

[0170] The adjustment amount determination module 230 is used to determine the driving data adjustment amount of each sub-pixel of the emitting color based on the target color coordinates, actual color coordinates and the first functional relationship of each emitting color sub-pixel of the display panel.

[0171] The optional adjustment amount determination module 230 includes:

[0172] The difference determination unit is used to determine a first difference between the abscissa of the target color coordinate and the abscissa of the actual color coordinate, and a second difference between the ordinate of the target color coordinate and the ordinate of the actual color coordinate.

[0173] The first adjustment amount determination unit is used to determine the driving data adjustment amount of each sub-pixel of the emitting color based on the first difference, the second difference, the functional relationship between the driving data of each sub-pixel of the emitting color and the abscissa of the chromatic coordinate, and the functional relationship between the driving data of each sub-pixel of the emitting color and the ordinate of the chromatic coordinate.

[0174] Optionally, the first adjustment amount determination unit includes:

[0175] The first change amount determination subunit is used to calculate the first change amount of the abscissa of the chromatic coordinate at the actual abscissa position when the change in the driving data of the sub-pixel of each luminous color is minimal, based on the functional relationship between the driving data of the sub-pixel of each luminous color and the abscissa of the chromatic coordinate.

[0176] The second change amount determination subunit is used to calculate the second change amount of the ordinate ...

[0177] The first adjustment amount determination subunit is used to determine the driving data adjustment amount of each light-emitting color sub-pixel based on the first difference, the second difference, the first change amount of each light-emitting color sub-pixel, and the second change amount of each light-emitting color sub-pixel.

[0178] Optionally, the first adjustment amount determination sub-unit includes:

[0179] The relational determination subunit is used to establish a first relational expression between the driving data adjustment amount of each sub-pixel of the emitting color and the first difference based on the first change amount of each sub-pixel of the emitting color and the second change amount of each sub-pixel of the emitting color, and to establish a second relational expression between the driving data adjustment amount of each sub-pixel of the emitting color and the second difference.

[0180] The adjustment amount determination sub-unit is used to determine the driving data adjustment amount of each emitting color sub-pixel according to the first relation and the second relation.

[0181] Optional debugging methods also include:

[0182] The second functional relationship determination module is used to determine the second functional relationship between the driving data and the luminance of each sub-pixel of the luminous color before determining the driving data adjustment amount of each sub-pixel of the luminous color based on the target color coordinates, actual color coordinates and the first functional relationship of each sub-pixel of the luminous color of the display panel.

[0183] The adjustment amount determination module 230 is specifically used for:

[0184] The driving data adjustment amount for each sub-pixel of the emitting color is determined based on the target color coordinates, the actual color coordinates, the target brightness of the display panel, and the first and second functional relationships of the sub-pixels of each emitting color.

[0185] Optionally, the adjustment amount determination module 230 includes:

[0186] The difference determination unit is used to determine a first difference between the abscissa of the target color coordinate and the abscissa of the actual color coordinate, and a second difference between the ordinate of the target color coordinate and the ordinate of the actual color coordinate.

[0187] The first change amount determination subunit is used to calculate the first change amount of the abscissa of the chromatic coordinate at the actual abscissa position when the change in the driving data of the sub-pixel of each luminous color is minimal, based on the functional relationship between the driving data of the sub-pixel of each luminous color and the abscissa of the chromatic coordinate.

[0188] The second change amount determination subunit is used to calculate the second change amount of the ordinate ...

[0189] The third change amount determination subunit is used to calculate the third change amount of luminance at the actual luminance position when the change in the driving data of each luminance color sub-pixel is the minimum, based on the functional relationship between the driving data of each luminance color sub-pixel and the luminance.

[0190] The second adjustment amount determination unit is used to determine the driving data adjustment amount of each light-emitting color sub-pixel based on the first difference, the second difference, the target brightness, and the first change, second change, and third change of each light-emitting color sub-pixel.

[0191] Optionally, the second adjustment amount determination unit includes:

[0192] The brightness acquisition subunit is used to acquire the actual display brightness of the display panel;

[0193] The third difference determination subunit is used to calculate the third difference between the target brightness and the actual brightness of the display panel.

[0194] The sub-pixel to be adjusted determination sub-unit is used to determine the sub-pixel to be adjusted based on the third change amount when the third difference is less than or equal to the brightness threshold, wherein the sub-pixel to be adjusted includes at least one sub-pixel of emitting color;

[0195] The first relational expression determination subunit is used to establish a first relational expression between the driving data adjustment amount of the sub-pixel to be adjusted and the first difference based on the first change amount, the second change amount and the third change amount of the sub-pixel to be adjusted, to establish a second relational expression between the driving data adjustment amount of the sub-pixel to be adjusted and the second difference, and to establish a third relational expression between the driving data adjustment amount of the sub-pixel to be adjusted and the brightness threshold.

[0196] The second adjustment amount determination subunit is used to determine the driving data adjustment amount of each emitting color sub-pixel according to the first relation, the second relation and the third relation;

[0197] Alternatively, the second adjustment amount determination unit includes:

[0198] The brightness acquisition subunit is used to acquire the actual brightness of the display panel;

[0199] The third difference determination subunit is used to calculate the third difference between the target brightness and the actual brightness of the display panel.

[0200] The second relational expression determination subunit is used to establish a first relational expression between the driving data adjustment amount of each emitting color sub-pixel and the first difference, based on the first change amount, the second change amount and the third change amount of each emitting color sub-pixel, when the third difference is greater than the brightness threshold; establish a second relational expression between the driving data adjustment amount of each emitting color sub-pixel and the second difference; and establish a fourth relational expression between the driving data adjustment amount of each emitting color sub-pixel and the third difference.

[0201] The third adjustment amount determination subunit is used to determine the driving data adjustment amount of each emitting color sub-pixel according to the first relation, the second relation and the fourth relation.

[0202] Optionally, the display panel includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, wherein the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel all emit different colors.

[0203] The functional relationship between the driving data of the first color sub-pixel and the x-coordinate of the color coordinate is:

[0204] x = 2E-05g + 0.238; where x is the x-coordinate of the color coordinates and g is the driving data of the first color sub-pixel;

[0205] The functional relationship between the driving data of the first color sub-pixel and the ordinate of the color coordinate is as follows:

[0206] y = -1E-06g 2 +0.001g+0.4395; where y is the ordinate of the color coordinates;

[0207] The functional relationship between the driving data of the second color sub-pixel and the x-coordinate of the color coordinate is:

[0208] x = -5E-07r 2 +0.0009b+0.2352; where r is the driving data of the second color sub-pixel;

[0209] The functional relationship between the driving data of the second color sub-pixel and the ordinate of the color coordinate is as follows:

[0210] y = -0.0001r + 0.4166;

[0211] The functional relationship between the driving data of the third color sub-pixel and the x-coordinate of the color coordinate is:

[0212] x = 3E-07b 2 -0.0003b+0.2263; where x is the x-coordinate of the color coordinates, and b is the driving data of the third color sub-pixel;

[0213] The functional relationship between the driving data of the third color sub-pixel and the ordinate of the color coordinate is as follows:

[0214] y = -1E-09b 3 +2E-06b 2 -0.0013b+0.4052; where y is the ordinate of the color coordinate.

[0215] Optionally, the drive data includes register values.

[0216] Optionally, the first functional relationship determination module 210 includes:

[0217] The data adjustment unit is used to fix the driving data of the sub-pixels of other emitting colors for each sub-pixel of the emitting color, gradually increase the driving data input to the sub-pixel of the emitting color starting from the minimum value of the driving data, until it is increased to the driving data increase value, and measure the color coordinates of the display panel after each increase of the driving data.

[0218] The first functional relationship determination unit is used to determine the first functional relationship between the driving data and color coordinates of the sub-pixels of the emitted color based on the measured color coordinates and the input driving data.

[0219] The display panel debugging device provided in this embodiment of the invention and the display panel debugging method provided in any embodiment of the invention belong to the same inventive concept and have corresponding beneficial effects. For technical details not covered in this embodiment, please refer to the display panel debugging method described in any embodiment of the invention.

[0220] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0221] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for debugging a display panel, characterized in that, include: Determine the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color; Obtain the actual color coordinates of the display panel; The driving data adjustment amount for each sub-pixel of the emitting color is determined based on the target color coordinates, actual color coordinates, and the first functional relationship between the sub-pixels of each emitting color on the display panel.

2. The debugging method for the display panel according to claim 1, characterized in that, The driving data adjustment amount for each sub-pixel of the emitted color is determined based on the target color coordinates, actual color coordinates, and the first functional relationship between the sub-pixels of each emitted color on the display panel, including: Determine a first difference between the x-coordinate of the target color coordinate and the x-coordinate of the actual color coordinate, and a second difference between the y-coordinate of the target color coordinate and the y-coordinate of the actual color coordinate; The adjustment amount of the driving data for each sub-pixel of the emitted color is determined based on the first difference, the second difference, the functional relationship between the driving data of each sub-pixel of the emitted color and the abscissa of the chromatic coordinate, and the functional relationship between the driving data of each sub-pixel of the emitted color and the ordinate of the chromatic coordinate.

3. The debugging method for the display panel according to claim 2, characterized in that, The adjustment amount of the driving data for each sub-pixel of the emitted color is determined based on the first difference, the second difference, the functional relationship between the driving data of each sub-pixel of the emitted color and the abscissa of the chromatic coordinate, and the functional relationship between the driving data of each sub-pixel of the emitted color and the ordinate of the chromatic coordinate, including: Based on the functional relationship between the driving data of each sub-pixel of the luminous color and the abscissa of the color coordinate, calculate the first change in the abscissa of the color coordinate at the actual abscissa position when the driving data of each sub-pixel of the luminous color changes by the minimum amount. The second change in the ordinate of the color coordinate is calculated based on the functional relationship between the driving data of each sub-pixel of the luminous color and the ordinate of the color coordinate at the actual ordinate position, when the driving data of each sub-pixel of the luminous color changes by the minimum amount. The driving data adjustment amount of each sub-pixel of the emitted color is determined based on the first difference, the second difference, the first change amount of each sub-pixel of the emitted color, and the second change amount of each sub-pixel of the emitted color.

4. The debugging method for the display panel according to claim 3, characterized in that, The driving data adjustment amount for each sub-pixel of the emitted color is determined based on the first difference, the second difference, the first change amount of each sub-pixel of the emitted color, and the second change amount of each sub-pixel of the emitted color, including: A first relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the first difference, based on the first change amount of each sub-pixel of the emitting color and the second change amount of each sub-pixel of the emitting color; and a second relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the second difference. The driving data adjustment amount for each sub-pixel of the emitted color is determined based on the first and second relational expressions.

5. The debugging method for the display panel according to claim 1, characterized in that, Before determining the driving data adjustment amount for each sub-pixel of the emitted color based on the target color coordinates, actual color coordinates, and the first functional relationship of each emitted color sub-pixel of the display panel, the method further includes: Determine the second functional relationship between the driving data of each sub-pixel of the emitted color and the emitted brightness; The driving data adjustment amount for each sub-pixel of the emitted color is determined based on the target color coordinates, actual color coordinates, and the first functional relationship between the sub-pixels of each emitted color on the display panel, including: The driving data adjustment amount for each sub-pixel of the emitting color is determined based on the target color coordinates, the actual color coordinates, the target brightness of the display panel, and the first and second functional relationships of the sub-pixels of each emitting color.

6. The debugging method for the display panel according to claim 5, characterized in that, The driving data adjustment amount for each sub-pixel of the emitted color is determined based on the target color coordinates, the actual color coordinates, the target brightness of the display panel, and the first and second functional relationships of the sub-pixels of each emitted color, including: Determine a first difference between the x-coordinate of the target color coordinate and the x-coordinate of the actual color coordinate, and a second difference between the y-coordinate of the target color coordinate and the y-coordinate of the actual color coordinate; Based on the functional relationship between the driving data of each sub-pixel of the luminous color and the abscissa of the color coordinate, calculate the first change in the abscissa of the color coordinate at the actual abscissa position when the driving data of each sub-pixel of the luminous color changes by the minimum amount. The second change in the ordinate of the color coordinate is calculated based on the functional relationship between the driving data of each sub-pixel of the luminous color and the ordinate of the color coordinate at the actual ordinate position, when the driving data of each sub-pixel of the luminous color changes by the minimum amount. The third change in luminance is calculated based on the driving data of each sub-pixel of the luminous color and the functional relationship between luminance and luminance at the actual luminance position, when the driving data of each sub-pixel of the luminous color changes by the minimum amount. The driving data adjustment amount for each emitting color sub-pixel is determined based on the first difference, the second difference, the target brightness, and the first, second, and third changes of the sub-pixel for each emitting color.

7. The debugging method for the display panel according to claim 6, characterized in that, The driving data adjustment amount for each sub-pixel of the emitted color is determined based on the first difference, the second difference, the target brightness, and the first, second, and third changes of the sub-pixels of each emitted color, including: Obtain the actual display brightness of the display panel; Calculate the third difference between the target brightness and the actual brightness of the display panel; When the third difference is less than or equal to the brightness threshold, the sub-pixel to be adjusted is determined according to the third change amount, wherein the sub-pixel to be adjusted includes at least one sub-pixel of emitting color; Based on the first change, second change, and third change of the sub-pixel to be adjusted, a first relationship is established between the driving data adjustment amount of the sub-pixel to be adjusted and the first difference; a second relationship is established between the driving data adjustment amount of the sub-pixel to be adjusted and the second difference; and a third relationship is established between the driving data adjustment amount of the sub-pixel to be adjusted and the brightness threshold. The driving data adjustment amount for each emitting color sub-pixel is determined based on the first relation, the second relation, and the third relation. Alternatively, the driving data adjustment amount for each sub-pixel of the emitted color is determined based on the first difference, the second difference, the target brightness, and the first, second, and third changes of the sub-pixels of each emitted color, including: Obtain the actual brightness of the display panel; Calculate the third difference between the target brightness and the actual brightness of the display panel; When the third difference is greater than the brightness threshold, a first relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the first difference based on the first change amount, the second change amount and the third change amount of each sub-pixel of the emitting color, a second relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the second difference, and a fourth relationship is established between the driving data adjustment amount of each sub-pixel of the emitting color and the third difference. The driving data adjustment amount for each emitting color sub-pixel is determined based on the first relation, the second relation, and the fourth relation.

8. The debugging method for the display panel according to claim 1, characterized in that: The display panel includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, wherein the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel all emit different colors. The functional relationship between the driving data of the first color sub-pixel and the x-coordinate of the color coordinate is: x = 2E-05g + 0.238; where x is the x-coordinate of the color coordinates and g is the driving data of the first color sub-pixel; The functional relationship between the driving data of the first color sub-pixel and the ordinate of the color coordinate is as follows: y = -1E-06g 2 +0.001g+0.4395; where y is the ordinate of the color coordinates; The functional relationship between the driving data of the second color sub-pixel and the x-coordinate of the color coordinate is: x = -5E-07r 2 +0.0009b+0.2352; where r is the driving data of the second color sub-pixel; The functional relationship between the driving data of the second color sub-pixel and the ordinate of the color coordinate is as follows: y＝-0.0001r+0.4166； The functional relationship between the driving data of the third color sub-pixel and the x-coordinate of the color coordinate is: x = 3E-07b 2 -0.0003b+0.2263; where x is the x-coordinate of the color coordinates, and b is the driving data of the third color sub-pixel; The functional relationship between the driving data of the third color sub-pixel and the ordinate of the color coordinate is as follows: y = -1E-09b 3 +2E-06b 2 -0.0013b+0.4052; where y is the ordinate of the color coordinate. Preferably, the driving data includes register values.

9. The debugging method for the display panel according to claim 1, characterized in that, Determine the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color, including: For each sub-pixel of a light-emitting color, the driving data of the sub-pixels of other light-emitting colors is fixed. Starting from the minimum value of the driving data, the driving data input to the sub-pixel of the light-emitting color is gradually increased until it is increased to the value of the driving data increase. The color coordinates of the display panel are measured after each increase in the driving data. The first functional relationship between the driving data and color coordinates of the sub-pixels of the emitted color is determined based on the measured color coordinates and the input driving data.

10. A device for debugging a display panel, characterized in that, include: The first functional relationship determination module is used to determine the first functional relationship between the driving data and color coordinates of each sub-pixel of the emitted color; The actual color coordinate acquisition module is used to obtain the actual color coordinates of the display panel; The adjustment amount determination module is used to determine the driving data adjustment amount of each sub-pixel of the emitting color based on the target color coordinates, actual color coordinates, and the first functional relationship between the sub-pixels of each emitting color on the display panel.

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