Display panel debugging method, electronic equipment and computer readable storage medium
By traversing the reference grayscale binding points, obtaining the data point set and generating the relationship between display brightness and brightness control parameters, determining the control parameters for calculating grayscale binding points, solving the problem of too long debugging time in the prior art and improving production efficiency.
Patent Information
- Application Number
- CN202510220227.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-06-06
AI Technical Summary
In the production of OLED screens, the existing debugging methods lead to too long debugging time, affecting production efficiency.
By traversing multiple reference grayscale binding points, a first data point set is obtained, and the relationship between the display brightness and the first brightness control parameter is generated, which is used to determine the first brightness control parameter for calculating the grayscale binding points, reducing debugging time.
This method reduces the debugging time of the display panel and improves production efficiency.
Smart Images
Figure CN120108332A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of display technology, and in particular to a debugging method for a display panel, an electronic device, and a computer-readable storage medium. Background Art
[0002] In the production process of OLED (Organic Light-Emitting Diode) screens, the OTP (One Time Programmable) site is mainly responsible for adjusting the grayscale voltage value of each mode according to the Gamma curve, and burning the compensation voltage value into the chip storage module, so that the screen image quality performance meets the needs of customers and users. During the debugging process, the grayscale compensation voltage value is intuitively displayed as the corresponding RGB register value of each grayscale, that is, the debugging process can be abstracted to obtain accurate RGB register values so that the corresponding screen image meets the specifications.
[0003] However, the debugging method commonly used in screen production currently has the problem of too long debugging time, which affects the production efficiency of the screen. Summary of the invention
[0004] The present application provides a display panel debugging method, an electronic device, and a computer-readable storage medium, which can reduce the debugging time of the display panel.
[0005] The present application provides a debugging method for a display panel, the method comprising: traversing multiple reference grayscale binding points to obtain a first data point set; wherein the first data point set comprises multiple first data groups corresponding to the multiple reference grayscale binding points, the first data group comprises a display brightness corresponding to the corresponding reference grayscale binding point and a corresponding first brightness control parameter; wherein the display brightness corresponding to the reference grayscale binding point is the brightness of the display panel after debugging after the display panel displays a white screen at the reference grayscale binding point, and in the process of debugging the display panel, after debugging a first type of sub-pixel in the display panel using the first brightness control parameter corresponding to the reference grayscale binding point, the brightness of the display panel reaches a target brightness; based on the first data point set, generating a first relationship between the display brightness of the display panel and the first brightness control parameter; for each calculated grayscale binding point corresponding to the multiple reference grayscale binding points, determining the first brightness control parameter corresponding to the calculated grayscale binding point according to the target brightness corresponding to the calculated grayscale binding point and the first relationship.
[0006] In one implementation, after the reference grayscale binding points and the calculated grayscale binding points are sorted in order from large to small or from small to large, the calculated grayscale binding point exists between any two adjacent reference grayscale binding points.
[0007] Preferably, after the reference grayscale binding points and the calculated grayscale binding points are sorted in order from large to small or from small to large, the reference grayscale binding points and the calculated grayscale binding points are alternately arranged.
[0008] In one embodiment, before traversing multiple reference grayscale binding points to obtain a first data point set, it also includes: dividing the preset multiple grayscale binding points of the display panel to obtain multiple grayscale binding point intervals, and the calculated grayscale binding points corresponding to the multiple reference grayscale binding points and the multiple reference grayscale binding points are in the same grayscale binding point interval.
[0009] Preferably, the preset multiple grayscale binding points are all greater than preset grayscale values.
[0010] In one embodiment, the plurality of grayscale binding point intervals include a first grayscale binding point interval and a second grayscale binding point interval, and the first grayscale binding point interval and the second grayscale binding point interval partially overlap.
[0011] Preferably, the method also includes: for the first grayscale binding point interval, determining the first brightness control parameter corresponding to the calculated grayscale binding point in the first grayscale binding point interval; for the second grayscale binding point interval, determining the first brightness control parameter corresponding to the calculated grayscale binding point in the second grayscale binding point interval; for the calculated grayscale binding point having two corresponding first brightness control parameters, performing weighted summation of the two first brightness control parameters corresponding to the calculated grayscale binding point to obtain the final first brightness control parameter of the calculated grayscale binding point.
[0012] In one embodiment, the first relationship includes a first polynomial function with the display brightness of the display panel as a dependent variable and the first brightness control parameter as an independent variable.
[0013] Preferably, the step of generating the first relationship between the display brightness of the display panel and the first brightness control parameter based on the first data point set comprises: fitting the first data point set using the least squares method to obtain the first polynomial function.
[0014] In one embodiment, the step of determining the first brightness control parameter corresponding to the calculated grayscale binding point based on the target brightness corresponding to the calculated grayscale binding point and the first relationship includes: determining the first brightness control parameter corresponding to the calculated grayscale binding point by using a dichotomy method based on the target brightness corresponding to the calculated grayscale binding point and the first relationship.
[0015] In one embodiment, the method also includes: obtaining a second data point set while obtaining the first data point set; wherein the second data point set includes a first brightness control parameter corresponding to the corresponding reference grayscale binding point and a second brightness control parameter corresponding to the corresponding reference grayscale binding point; in the process of debugging the display panel, after debugging the second type of sub-pixels in the display panel using the second brightness control parameter corresponding to the reference grayscale binding point, the brightness of the display panel reaches the target brightness; based on the second data point set, generating a second relationship between the second brightness control parameter and the first brightness control parameter; based on the first brightness control parameter corresponding to the calculated grayscale binding point and the second relationship, obtaining the second brightness control parameter corresponding to the calculated grayscale binding point.
[0016] Preferably, the first type of sub-pixels are green sub-pixels, and the second type of sub-pixels are blue sub-pixels or red sub-pixels.
[0017] In one implementation, the first brightness control parameter and the second brightness control parameter include a grayscale voltage value of a pixel or a register value of a pixel.
[0018] A second aspect of the present application provides an electronic device, which includes a processor and a memory, wherein the processor is coupled to the memory respectively, and the memory stores program data. The processor implements the steps in the driving method in any of the above embodiments by executing the program data in the memory.
[0019] A third aspect of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program can be executed by a processor to implement the steps in the driving method in any of the above embodiments.
[0020] Different from the prior art, the beneficial effect of the present application is as follows: the present application uses part of the original debug grayscale binding points as reference grayscale binding points, and the reference grayscale binding points adopt conventional traversal debugging. Then, another part of the original debug grayscale binding points is used as calculated grayscale binding points. This part no longer adopts the traversal debugging method, but determines the first brightness control parameters corresponding to each calculated grayscale binding point based on the first relationship between the display brightness of the display panel corresponding to the reference grayscale binding point in the white screen and the first brightness control parameter of the first type of sub-pixel corresponding to the reference grayscale binding point. It can be seen that the calculated grayscale binding points no longer require traversal debugging, which can reduce the debugging time of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:
[0022] Figure 1 It is a flowchart of an implementation method of a display panel debugging method of the present application;
[0023] Figure 2 yes Figure 1 A schematic diagram of a flow chart of an implementation method after step S300;
[0024] Figure 3 is Figure 1 A schematic flow chart of an implementation method based on each step in FIG.
[0025] Figure 4 is a schematic diagram of an embodiment of the relationship between the display panel and the brightness control parameters of different colors of the present application;
[0026] Figure 5 It is a structural schematic diagram of an embodiment of the electronic device of the present application;
[0027] Figure 6 It is a structural schematic diagram of an implementation method of a computer-readable storage medium of the present application. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0029] It should be noted that the terms "first" and "second" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.
[0030] In the prior art, when optically debugging a display panel, the grayscale from 0 to 255 is divided into debugging grayscale binding points and non-debugging grayscale binding points. The debugging grayscale binding points occupy part of the grayscale from 0 to 255. A traversal debugging method is usually adopted, that is, the register value is continuously written to obtain the optical data of the display panel through the optical acquisition device, and then the register value is further modified according to the measured optical data until the optical data meets the requirements. The non-debugging grayscale binding point is calculated by the linear interpolation method after the optical data of the debugging grayscale binding point is debugged. However, the debugging time of the current debugging grayscale binding point is still relatively long.
[0031] See also Figure 1 The present application provides a method for debugging a display panel, the method comprising:
[0032] S100: traverse multiple reference grayscale binding points to obtain a first data point set; wherein the first data point set includes multiple first data groups corresponding to the multiple reference grayscale binding points, and the first data group includes the display brightness corresponding to the corresponding reference grayscale binding point and the corresponding first brightness control parameter; wherein the display brightness corresponding to the reference grayscale binding point is the brightness of the display panel after debugging after the display panel displays a white screen with the reference grayscale binding point, and in the process of debugging the display panel, after debugging the first type of sub-pixels in the display panel using the first brightness control parameter corresponding to the reference grayscale binding point, the brightness of the display panel reaches the target brightness.
[0033] Specifically, the reference grayscale binding point is a part of the grayscale binding points selected from the entire 0 to 255 grayscales, and the first data group in the first data point set corresponding to each reference grayscale binding point is obtained through an acquisition device, such as a color analyzer. For example, G0, G1, G2, ..., G13 and G14 are selected as grayscale binding points in the 0 to 255 grayscales, and then some of these grayscale binding points are selected as reference grayscale binding points. The first data set includes the first data group corresponding to each reference grayscale binding point, for example, the first data point set P1 = {A1, A2, ..., An}, where A1, A2, ..., An are the first data groups corresponding to each reference grayscale binding point, and n is the number of first data groups.
[0034] Furthermore, each first data group includes the display brightness corresponding to its respective corresponding reference grayscale binding point. The display brightness is obtained by a brightness acquisition device after the white screen debugging of the display panel at the reference grayscale binding point is completed. The above-mentioned debugging completion refers to gamma correction of the reference grayscale binding point of the display panel. The display brightness at the reference grayscale binding point through debugging meets the target brightness requirement of the corresponding reference grayscale binding point. The target brightness of the reference grayscale binding point and the reference grayscale binding point meet the gamma correction requirement (gamma2.2). And each first data group also includes the first brightness control parameter corresponding to its respective corresponding reference grayscale binding point. The first brightness control parameter is used to control the luminous brightness of the first type of sub-pixel. That is, during the debugging process, the first brightness control parameter is obtained by traversing the debugging so that the brightness of the corresponding reference grayscale binding point reaches the target brightness. For example, the first data point set P1={(Lv 1 , G 1 ), (Lv 2 , G 2 ),……,(Lv n , G n )}, where Lv 1 ,Lv 2 ,……,Lv n are the display brightness of the white screen corresponding to each reference grayscale binding point, G 1 , G 2 ,……,G n are respectively the first brightness control parameters of the first type of sub-pixel corresponding to each reference grayscale binding point.
[0035] S200: Generate a first relationship between display brightness of a display panel and a first brightness control parameter according to a first data point set.
[0036] Specifically, the first relationship satisfies the relationship between the display brightness of each reference grayscale binding point in each first data group in the first data point set and the first brightness control parameter of the corresponding first type of sub-pixel. The first relationship can be a functional relationship or an image relationship.
[0037] S300: for each calculated grayscale binding point corresponding to a plurality of reference grayscale binding points, determining a first brightness control parameter corresponding to the calculated grayscale binding point according to a target brightness corresponding to the calculated grayscale binding point and a first relationship.
[0038] Specifically, the calculated grayscale binding point is different from the reference grayscale binding point. The target brightness corresponding to the calculated grayscale binding point can be directly determined according to the gamma correction requirements. According to the target brightness corresponding to the calculated grayscale binding point and the first relationship determined in the above steps, the first brightness control parameter corresponding to the calculated grayscale binding point is obtained.
[0039] The present application uses part of the original debug grayscale binding points as reference grayscale binding points, which use conventional traversal debugging. Then, another part of the original debug grayscale binding points is used as calculated grayscale binding points. This part no longer uses the traversal debugging method, but instead determines the first brightness control parameters corresponding to each calculated grayscale binding point based on the first relationship between the display brightness of the display panel corresponding to the reference grayscale binding point on the white screen and the first brightness control parameters of the first type of sub-pixels corresponding to the reference grayscale binding point. It can be seen that the calculated grayscale binding points no longer require traversal debugging, which can reduce the debugging time of the display panel.
[0040] In one implementation, after the reference grayscale binding points and the calculated grayscale binding points are sorted in order from large to small or from small to large, there is a calculated grayscale binding point between any two adjacent reference grayscale binding points.
[0041] Specifically, the calculation grayscale binding point can be selected between any two adjacent reference grayscale binding points, so that the first relationship obtained based on the display brightness of the reference grayscale binding point and the first brightness control parameter of the reference grayscale binding point can better match the calculation grayscale binding point.
[0042] Preferably, after the reference grayscale binding points and the calculated grayscale binding points are sorted in order from large to small or from small to large, the reference grayscale binding points and the calculated grayscale binding points are alternately arranged.
[0043] Specifically, the reference grayscale binding points and the calculated grayscale binding points are alternately set, which means that there is only one calculated grayscale binding point between any two reference grayscale binding points, so that the first relationship can better match the calculated grayscale binding point.
[0044] Of course, in some other implementations, no calculation binding point grayscale may be set between two reference grayscale binding points.
[0045] In one embodiment, before the above step S100, the method further includes:
[0046] A plurality of preset grayscale binding points of the display panel are divided to obtain a plurality of grayscale binding point intervals, and the calculated grayscale binding points corresponding to the plurality of reference grayscale binding points and the plurality of reference grayscale binding points are in the same grayscale binding point interval.
[0047] Specifically, the preset multiple grayscale binding points refer to some grayscale binding points among the multiple grayscale binding points to be debugged. Generally speaking, the preset multiple grayscale binding points are grayscale binding points within a certain range. The present application further divides all reference grayscale binding points within the range into multiple grayscale binding point intervals, each grayscale binding point interval includes multiple reference grayscale binding points and at least one calculated grayscale binding point, and the first relationship is obtained according to the display brightness of the respective reference grayscale binding points and the corresponding first brightness control parameter in different grayscale binding point intervals, and then the calculated grayscale binding points in the respective grayscale binding point intervals calculate the corresponding first brightness control parameter according to the first relationship obtained in the respective grayscale binding point intervals. By segmenting the grayscale binding points so that the first relationship can match the calculated grayscale binding points in multiple different segmented grayscale binding point intervals, the display brightness of the display panel under the first brightness control parameter can be made closer to the target brightness.
[0048] Furthermore, the preset multiple grayscale binding points are all greater than the preset grayscale value. At this time, the grayscale binding points that are less than the preset grayscale value have no reference grayscale binding points, let alone calculated grayscale binding points. The grayscale binding points that are less than the preset grayscale value can be called low-brightness grayscale binding points. These grayscale binding points may not use the above method in the present application, but may use the traversal debugging method. The reason is that the current display panel has picture display fluctuations at low brightness and the accuracy of the brightness acquisition device is insufficient. Therefore, if the traversal debugging method is not used, the display brightness of the display panel at low brightness will not meet the gamma correction requirements.
[0049] In one embodiment, the plurality of grayscale binding point intervals include a first grayscale binding point interval and a second grayscale binding point interval, and the first grayscale binding point interval and the second grayscale binding point interval partially overlap.
[0050] Specifically, the partial overlap between the first grayscale binding point interval and the second grayscale binding point interval means that there are at least two identical reference grayscale binding points in the two grayscale binding point intervals. At this time, if there is a calculated grayscale binding point in the overlapping grayscale binding point interval, it is necessary to clarify the method for determining the first brightness control parameter of the calculated grayscale binding point.
[0051] Therefore, see Figure 2 , the method of the present application also includes:
[0052] S410: For a first grayscale binding point interval, determine a first brightness control parameter corresponding to a grayscale binding point calculated in the first grayscale binding point interval.
[0053] Specifically, the first brightness control parameter corresponding to the calculated grayscale binding point in the first grayscale binding point interval is determined according to the first relationship determined in the first grayscale interval and the calculated grayscale binding point in the first grayscale binding point interval.
[0054] S420: For the second grayscale binding point interval, determine a first brightness control parameter corresponding to a grayscale binding point calculated in the second grayscale binding point interval.
[0055] Specifically, the first brightness control parameter corresponding to the calculated grayscale binding point in the second grayscale binding point interval is determined according to the first relationship determined in the second grayscale interval and the calculated grayscale binding point in the second grayscale binding point interval.
[0056] S430: For a calculated grayscale binding point having two corresponding first brightness control parameters, weighted summing the two first brightness control parameters corresponding to the calculated grayscale binding point is performed to obtain a final first brightness control parameter of the calculated grayscale binding point.
[0057] Specifically, the first brightness control parameter of the calculated grayscale binding point in the overlapping part of the first grayscale binding point interval and the second grayscale binding point interval can be obtained by weighted summing the first brightness control parameters obtained in each of the two grayscale intervals. For example, when the weight corresponding to the first grayscale binding point interval is 1 and the weight corresponding to the second grayscale binding point interval is 0, the first brightness control parameter of the calculated grayscale binding point determined by the first grayscale binding point interval is used as the final first brightness control parameter of the calculated grayscale binding point; when the weight corresponding to the first grayscale binding point interval is 0 and the weight corresponding to the second grayscale binding point interval is 1, the first brightness control parameter of the calculated grayscale binding point determined by the second grayscale binding point interval is used as the final first brightness control parameter of the calculated grayscale binding point; when the weight corresponding to the first grayscale binding point interval is 0.5 and the weight corresponding to the second grayscale binding point interval is 0.5, the average value of the first brightness control parameters of the calculated grayscale binding point determined by the two grayscale binding point intervals is used as the final first brightness control parameter of the calculated grayscale binding point. Of course, the present application does not impose specific restrictions on the above-mentioned specific weight values.
[0058] For a clearer explanation, the present application provides an application scenario, in which G0, G1, G2, ..., G13 and G14, which increase in sequence, are used as grayscale binding points, and smaller G0, G1, G2 and G3 are selected as low-brightness grayscale binding points, G4-G10 is used as the first grayscale binding point interval, and G8-G14 is used as the second grayscale binding point interval. The reference grayscale binding points in the first grayscale binding point interval are G4, G6, G8 and G10, and the calculated grayscale binding points are G5, G7 and G9. The reference grayscale binding points in the second grayscale binding point interval are G8, G10, G12 and G14, and the calculated grayscale binding points are G9, G11 and G13. According to the above method, the first relationship corresponding to the reference grayscale binding points G4, G6, G8 and G10 in the first grayscale binding point interval can be determined, thereby further determining the first brightness control parameters of the calculated grayscale binding points G5, G7 and G9 in the first grayscale binding point interval, and simultaneously determining the first relationship corresponding to the reference grayscale binding points G8, G10, G12 and G14 in the second grayscale binding point interval, thereby further determining the first brightness control parameters of the calculated grayscale binding points G9, G11 and G13 in the second grayscale binding point interval, but there is a partial overlap between the two grayscale areas, that is, there is an overlap of the grayscale binding points G8-G10, wherein the overlapping reference grayscale binding points G8 and G10, and the overlapping calculated grayscale binding point G9, therefore, the first brightness control parameter of the final calculated grayscale binding point G9 can be further determined by weighted summation of the two first brightness control parameters determined in the first grayscale binding point interval and the second grayscale binding point interval.
[0059] The first relationship includes a first polynomial function with the display brightness of the display panel as a dependent variable and the first brightness control parameter as an independent variable.
[0060] Specifically, the first polynomial function is as follows:
[0061]
[0062] Among them, G i It refers to the first brightness control parameter of the reference grayscale binding point, m is the polynomial degree, w j is the compensation coefficient, Lv i It is the display brightness of the white screen of the display panel under the reference grayscale binding point.
[0063] Further, the above step S200 includes:
[0064] The first data point set is fitted using the least square method to obtain a first polynomial function.
[0065] First, use this m-th degree first polynomial to represent f(G i ,w j ) and G i The relationship between the first polynomial and the actual result is: According to the least squares method, the problem is transformed into a set of compensation coefficients with the smallest sum of squared errors, and the sum of squared errors is calculated:
[0066] Secondly, to minimize E(w), E(w) should be k (k=0, 1, 2, ..., m) find the partial derivative and set it to zero: The calculation can be obtained: Among them, k = 0, 1, 2, ..., m, further converted into matrix form:
[0067]
[0068] The above matrix can be simplified to AW = B, and only needs to calculate k = 0, 1, 2, ..., 2m and k=0, 1, 2, ..., m, after calculation, substitute the first matrix A and the second matrix B in the above formula, then the compensation coefficient matrix W can be obtained by solving the linear equations. Through the above method, the function Lv i =f(G i ,w j ), which is used to characterize a characteristic curve between the display brightness of this display panel and the first brightness control parameter of the first type of sub-pixel.
[0069] Furthermore, the above step S300 includes: determining a first brightness control parameter corresponding to the calculated grayscale binding point by using a dichotomy method according to the target brightness corresponding to the calculated grayscale binding point and the first relationship.
[0070] Specifically, the first brightness control parameter of the calculated grayscale binding point is substituted into the first relationship to obtain the brightness determined according to the first relationship, and the first brightness control parameter is adjusted by the dichotomy method so that the calculated brightness determined according to the first relationship is close to or equal to the target brightness. The specific method of the dichotomy method is as follows:
[0071] According to the first brightness control parameters of two adjacent reference grayscale binding points, the possible value range of the first brightness control parameter of the grayscale binding point is obtained. min , G max ], take the first brightness control parameter Substituting into the first relation, for example, the first polynomial function f(G i ,w j ), the calculated brightness Lv temp , compare the target brightness Lv target And calculate the brightness Lv temp If the difference is greater than zero, it indicates that the first brightness control parameter G of the reference grayscale binding point is tempThe corresponding brightness is too small, so the lower limit of the value interval G is taken. min Assign it to G temp Otherwise, it indicates that the first brightness control parameter G of the reference grayscale binding point is temp The corresponding brightness is too large, and the upper limit of the value range G max Assign it to G temp . Then take Repeat the above steps until G min Greater than or equal to G max At this time, the best match to the target brightness Lv is calculated by the first relationship target The first brightness control parameter.
[0072] For further information, see Figure 3 , the method of the present application also includes:
[0073] S1000: While obtaining the first data point set, obtain the second data point set; wherein the second data point set includes a first brightness control parameter corresponding to the corresponding reference grayscale binding point and a second brightness control parameter corresponding to the corresponding reference grayscale binding point; in the process of debugging the display panel, after debugging the second type of sub-pixels in the display panel using the second brightness control parameter corresponding to the reference grayscale binding point, the brightness of the display panel reaches the target brightness.
[0074] Specifically, for example, the second data point set P2 = {(R 1 , G 1 ), (R 2 , G 2 ), ..., (R n , G n )}, where R 1 , R 2 ,……,R n are the second brightness control parameters of the second type of sub-pixel corresponding to each reference grayscale binding point, G 1 , G 2 ,……,G n They are the first brightness control parameters of the first type of sub-pixels corresponding to each reference grayscale binding point. The first type of sub-pixels and the second type of sub-pixels have different colors. In addition, unlike the first data point set, the second data point set includes the first brightness control parameters for controlling the lighting of the first type of sub-pixels and the second brightness control parameters for controlling the lighting of the second type of sub-pixels. The traversal debugging method is also used for the second brightness control parameters corresponding to the reference grayscale binding point, which is the same as the debugging method for the first brightness control parameters corresponding to the reference grayscale binding point.
[0075] S2000: Generate a second relationship between a second brightness control parameter and the first brightness control parameter according to a second data point set.
[0076] Specifically, the second relationship establishes the relationship between the first brightness control parameter of the first type of sub-pixel at the reference grayscale binding point and the second brightness control parameter of the second type of sub-pixel at the reference grayscale binding point. Therefore, it can be understood that in the above, after the first relationship between the display brightness of the display panel at the reference grayscale binding point and the corresponding first brightness control parameter has been obtained, because the relative brightness ratio of sub-pixels of different colors is fixed, the second relationship is further used to use the first brightness control parameter of the first type of sub-pixel as a bridge to establish a relationship between the display brightness of the display panel at the reference grayscale binding point and the corresponding second brightness control parameter of the second type of sub-pixel.
[0077] Similarly, the second relationship includes a second polynomial function with the second brightness control parameter as the dependent variable and the first brightness control parameter as the independent variable, and further uses the least squares method to fit the second data point set to obtain the second polynomial function.
[0078] S3000: Obtain a second brightness control parameter corresponding to the calculated grayscale binding point according to the first brightness control parameter corresponding to the calculated grayscale binding point and the second relationship.
[0079] Specifically, according to the target brightness corresponding to the calculated grayscale binding point and the second relationship, the second brightness control parameter corresponding to the calculated grayscale binding point is determined using the dichotomy method. The determination process is similar to the determination of the first brightness control parameter above and will not be repeated here.
[0080] It should be noted that the first type of sub-pixel can be single and the second type of sub-pixel can be multiple. That is to say, a first relationship with the display brightness of the display panel is established through the first brightness control parameter of the first type of sub-pixel, and a second relationship with the second brightness control parameters of multiple different second type sub-pixels is established through the first brightness control parameter of the first type of sub-pixel.
[0081] In one embodiment, see Figure 4 , the first type of sub-pixel is a green sub-pixel, and the second type of sub-pixel is a blue sub-pixel or a red sub-pixel. The relative brightness ratio of the sub-pixels based on the three primary colors of red, green and blue is 1.000:4.5907:0.0601. At the same time, since the display brightness of the green sub-pixel accounts for a higher proportion of the brightness of the white screen, the green sub-pixel is used as a bridge to reduce the errors of the first relationship and the second relationship. According to the above-mentioned first relationship and second relationship, the first brightness control parameter of the calculated grayscale binding point of the green sub-pixel, the second brightness control parameter of the calculated grayscale binding point of the red sub-pixel, and the second brightness control parameter of the calculated grayscale binding point of the blue sub-pixel can be finally calculated.
[0082] Furthermore, the first brightness control parameter and the second brightness control parameter include the grayscale voltage value of the pixel or the register value of the pixel. Either one of them can be selected to establish the first relationship and the second relationship. At the same time, in order to reduce errors, the grayscale voltage value of the pixel or the register value of the pixel should be used simultaneously when establishing the first relationship and the second relationship.
[0083] It should be noted that the display panel in the prior art usually includes multiple brightness levels, for example, NOR1, NOR2, ... NOR9, AOD1, AOD2, AOD3 and HDM, among which NOR is the standard mode, AOD is the screen-off display mode, HDM is the high-brightness mode, and the numbers following them represent different levels. The maximum brightness of the above-mentioned different modes and different brightness levels is different. Therefore, the method of the present application can be used to debug the display panel.
[0084] See also Figure 5 , Figure 5 1 is a schematic diagram of the structure of an embodiment of an electronic device of the present application. The electronic device 300 includes a processor 310 and a memory 320, the processor 310 is coupled to the memory 320, and the memory 320 stores program data. The processor 310 implements the steps in any of the above-mentioned implementation methods by executing the program data in the memory 320, and the detailed steps can be referred to the above-mentioned implementation, which will not be repeated here.
[0085] The electronic device 300 may be any device with algorithm capabilities, such as a mobile phone, a tablet computer, a smart watch, a desktop computer or a laptop computer, and is not limited here.
[0086] See also Figure 6 , Figure 6 The computer-readable storage medium 400 stores a computer program 410, which can be executed by a processor to implement the steps in any of the above methods. The detailed method steps can be found in the above related content, which will not be described here.
[0087] Among them, the computer-readable storage medium 400 can specifically be a device that can store the computer program 410, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or it can also be a server that stores the computer program 410. The server can send the stored computer program 410 to other devices for execution, or it can also run the stored computer program 410 by itself.
[0088] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A method for debugging a display panel, characterized in that: The method comprises: Traversing multiple reference grayscale binding points to obtain a first data point set; wherein the first data point set includes multiple first data groups corresponding to the multiple reference grayscale binding points, and the first data group includes display brightness and corresponding first brightness control parameters corresponding to the corresponding reference grayscale binding points; wherein the display brightness corresponding to the reference grayscale binding point is the brightness of the display panel after debugging after the display panel displays a white screen at the reference grayscale binding point, and in the process of debugging the display panel, after debugging the first type of sub-pixels in the display panel using the first brightness control parameters corresponding to the reference grayscale binding point, the brightness of the display panel reaches the target brightness; generating a first relationship between the display brightness of the display panel and the first brightness control parameter according to the first data point set; For each calculated grayscale binding point corresponding to the plurality of reference grayscale binding points, the first brightness control parameter corresponding to the calculated grayscale binding point is determined according to the target brightness corresponding to the calculated grayscale binding point and the first relationship.
2. The method according to claim 1, characterized in that After the reference grayscale binding points and the calculated grayscale binding points are sorted in order from large to small or from small to large, the calculated grayscale binding point exists between any two adjacent reference grayscale binding points, wherein there is at least one grayscale value between any two adjacent reference grayscale binding points, and at least one of the grayscale values is used as the calculated grayscale binding point; Preferably, after the reference grayscale binding points and the calculated grayscale binding points are sorted in order from large to small or from small to large, the reference grayscale binding points and the calculated grayscale binding points are alternately arranged.
3. The method according to claim 1, characterized in that Before traversing a plurality of reference grayscale binding points to obtain a first data point set, the method further includes: Dividing a plurality of preset grayscale binding points of the display panel to obtain a plurality of grayscale binding point intervals, wherein the calculated grayscale binding points corresponding to the plurality of reference grayscale binding points and the plurality of reference grayscale binding points are in the same grayscale binding point interval; Preferably, the preset multiple grayscale binding points are all greater than preset grayscale values.
4. The method according to claim 3, characterized in that The plurality of grayscale binding point intervals include a first grayscale binding point interval and a second grayscale binding point interval, and the first grayscale binding point interval and the second grayscale binding point interval partially overlap; Preferably, the method further comprises: For the first grayscale binding point interval, determining the first brightness control parameter corresponding to the calculated grayscale binding point in the first grayscale binding point interval; For the second grayscale binding point interval, determining the first brightness control parameter corresponding to the calculated grayscale binding point in the second grayscale binding point interval; For the calculated grayscale binding point having two corresponding first brightness control parameters, weighted sum is performed on the two first brightness control parameters corresponding to the calculated grayscale binding point to obtain the final first brightness control parameter of the calculated grayscale binding point.
5. The method according to claim 1, characterized in that The first relationship includes a first polynomial function with the display brightness of the display panel as a dependent variable and the first brightness control parameter as an independent variable; Preferably, the step of generating a first relationship between the display brightness of the display panel and the first brightness control parameter according to the first data point set comprises: The first data point set is fitted using the least squares method to obtain the first polynomial function.
6. The method according to claim 1, characterized in that The step of determining the first brightness control parameter corresponding to the calculated grayscale binding point according to the target brightness corresponding to the calculated grayscale binding point and the first relationship includes: The first brightness control parameter corresponding to the calculated grayscale binding point is determined by using a dichotomy method according to the target brightness corresponding to the calculated grayscale binding point and the first relationship.
7. The method according to claim 1, characterized in that The method further comprises: While acquiring the first data point set, acquiring a second data point set; wherein the second data point set includes a first brightness control parameter corresponding to the corresponding reference grayscale binding point and a second brightness control parameter corresponding to the corresponding reference grayscale binding point; during the process of debugging the display panel, after debugging the second type of sub-pixels in the display panel using the second brightness control parameter corresponding to the reference grayscale binding point, the brightness of the display panel reaches the target brightness; generating a second relationship between a second brightness control parameter and the first brightness control parameter according to the second data point set; Obtaining the second brightness control parameter corresponding to the calculated grayscale binding point according to the first brightness control parameter corresponding to the calculated grayscale binding point and the second relationship; Preferably, the first type of sub-pixels are green sub-pixels, and the second type of sub-pixels are blue sub-pixels or red sub-pixels.
8. The method according to claim 7, characterized in that The first brightness control parameter and the second brightness control parameter include a grayscale voltage value of a pixel or a register value of a pixel.
9. An electronic device, characterized in that: The electronic device comprises a processor and a memory, wherein the processor is configured to execute a computer program stored in the memory to implement the steps in the method according to any one of claims 1 to 8.
10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program can be executed by a processor to implement the steps in the method according to any one of claims 1 to 8.