Display panel display quality improvement method, device, equipment and medium

Abstract

The application discloses a display panel display quality improvement method, device, equipment and medium. The method can comprise: determining a target binding point of a display panel to be debugged, wherein the display quality of the display panel to be debugged based on an initial reset voltage value corresponding to the target binding point does not meet target quality requirements; adjusting the initial reset voltage value corresponding to the target binding point to obtain a target reset voltage value, so that the display quality of the display panel to be debugged based on the target reset voltage value meets the target quality requirements. According to the embodiment of the application, the display quality of the display panel can be improved, and the problem of color deviation in part of the display area of the display panel can be avoided.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a method, apparatus, device, and medium for improving the display quality of a display panel. Background Technology

[0002] With the development of display technology, users have increasingly higher requirements for the image quality of display panels. Display panels may include driving circuits to drive the light-emitting elements to emit light. These driving circuits may include components such as transistors; however, deviations in the characteristics of these components can affect the image quality of the display panel. For example, color distortion may occur in certain display areas of the panel. Summary of the Invention

[0003] This application provides a method, apparatus, device, and medium for improving the display quality of a display panel, which helps to improve the display quality of the display panel and avoid color distortion in some display areas of the display panel.

[0004] In a first aspect, embodiments of this application provide a method for improving the display quality of a display panel, used to improve the display quality of a display panel to be tested. The method may include: determining a target binding point of the display panel to be tested, wherein the display quality of the display panel to be tested based on an initial reset voltage value corresponding to the target binding point does not meet the target image quality requirements; adjusting the initial reset voltage value corresponding to the target binding point to obtain a target reset voltage value, so that the display quality of the display panel to be tested based on the target reset voltage value meets the target image quality requirements.

[0005] In one possible implementation of the first aspect, the target binding point includes a target brightness binding point. After the step of adjusting the initial reset voltage value corresponding to the target binding point to obtain the target reset voltage value, the method further includes:

[0006] Under the target brightness binding point, obtain the data voltage values ​​of the sub-pixels of various colors of the display panel to be debugged at the reference grayscale.

[0007] Based on the maximum data voltage value of the sub-pixels of various colors on the display panel to be debugged in the reference grayscale, determine the target maximum gamma voltage corresponding to the target brightness binding point.

[0008] In this embodiment, after determining the target reset voltage value corresponding to the target brightness binding point, the maximum gamma voltage is adjusted to determine the target maximum gamma voltage corresponding to the target brightness binding point. This can better improve the color cast problem or solve the problem that the black state of the display panel to be debugged is not black enough.

[0009] Preferably, the target maximum gamma voltage is greater than the maximum data voltage value;

[0010] Preferably, the reference gray level is 1 gray level, and the difference between the target maximum gamma voltage and the maximum data voltage value is greater than or equal to 0.3V.

[0011] In one possible implementation of the first aspect, the target binding point further includes a target grayscale binding point. After the step of adjusting the initial reset voltage value corresponding to the target binding point to obtain the target reset voltage value, the method further includes:

[0012] Obtain the first register value corresponding to the target grayscale point under the target brightness binding point at the initial reset voltage value and the initial maximum gamma voltage, and obtain the compensation coefficient corresponding to the target grayscale point under the target brightness binding point at the target reset voltage value and the target maximum gamma voltage. The display parameters of the display panel to be debugged under the first register value meet the target parameter requirements.

[0013] Based on the first register value and the compensation coefficient, determine the second register value corresponding to the target grayscale binding point under the target reset voltage value and the target maximum gamma voltage.

[0014] In this embodiment, under the target reset voltage and target maximum gamma voltage, the target grayscale binding point no longer corresponds to the first register value. Instead, a compensation coefficient is used to compensate the first register value, thereby obtaining the second register value corresponding to the target grayscale binding point. This ensures that the display parameters of the display panel under test meet the target parameter requirements under the target brightness binding point and target grayscale binding point. Furthermore, directly obtaining the second register value based on the compensation coefficient eliminates the need for gamma calibration of the display panel under test to determine the second register value, thus improving efficiency.

[0015] In one possible implementation of the first aspect, before the step of obtaining the compensation coefficient corresponding to the target grayscale binding point under the target reset voltage value and the target maximum gamma voltage, and the target brightness binding point, the method further includes:

[0016] Under the initial reset voltage value and the initial maximum gamma voltage, obtain the first sample register values ​​corresponding to the target grayscale binding points of multiple sample display panels under the target brightness binding points, wherein the display parameters of the sample display panels under their corresponding first sample register values ​​meet the target parameter requirements, and the display image quality of the sample display panels based on the initial reset voltage value corresponding to the target binding point does not meet the target image quality requirements.

[0017] Under the target reset voltage and the target maximum gamma voltage, the first sample register values ​​corresponding to the target grayscale binding points of multiple sample display panels under the target brightness binding points are adjusted to obtain the second sample register values. The display parameters of the sample display panels under their corresponding second sample register values ​​meet the target parameter requirements.

[0018] The compensation coefficient is determined based on multiple first sample register values ​​and multiple second sample register values.

[0019] In this embodiment, a compensation coefficient is determined based on multiple first sample register values ​​and multiple second sample register values ​​of multiple sample display panels. This compensation coefficient is determined by multiple sample data, so the compensation coefficient determined by multiple sample data is more accurate than arbitrarily setting a compensation coefficient.

[0020] Preferably, the multiple sample display panels and the display panel to be debugged are from the same batch of display panels.

[0021] In one possible implementation of the first aspect, the step of determining the compensation coefficient based on a plurality of first sample register values ​​and a plurality of second sample register values ​​specifically includes:

[0022] A first common register value is determined based on multiple first sample register values, wherein the first common register value can represent multiple first sample register values;

[0023] A second common register value is determined based on multiple second sample register values, wherein the second common register value can represent multiple second sample register values;

[0024] The compensation coefficient is determined based on the values ​​of the first and second common registers.

[0025] In this embodiment, since the first common register value can represent the distribution pattern of multiple first sample register values ​​and the second common register value can represent the distribution pattern of multiple second sample register values, the compensation coefficient determined by the first common register value and the second common register value can better match the actual situation of the display panel to be debugged, making the compensation coefficient more accurate. This compensation coefficient can also be applied to other display panels that also have color deviation problems.

[0026] In one possible implementation of the first aspect, the step of determining a first common register value based on a plurality of first sample register values ​​specifically includes:

[0027] The value that appears most frequently among the multiple first sample register values ​​is taken as the first common register value;

[0028] The steps for determining the value of the second common register based on multiple second sample register values ​​specifically include:

[0029] The value that appears most frequently among the multiple second sample register values ​​is taken as the second common register value;

[0030] Alternatively, the step of determining the first common register value based on multiple first sample register values ​​specifically includes:

[0031] The average of multiple first sample register values ​​is used as the first common register value;

[0032] The steps for determining the value of the second common register based on multiple second sample register values ​​specifically include:

[0033] The average of multiple second sample register values ​​is used as the second common register value;

[0034] Preferably, the step of determining the compensation coefficient based on the first common register value and the second common register value specifically includes:

[0035] Determine the difference between the first common register value and the second common register value, and use the ratio of the difference to the first common register value as the compensation coefficient.

[0036] In this embodiment of the application, the determined first common register value and second common register value make the determined compensation coefficient more accurate.

[0037] In one possible implementation of the first aspect, the method for improving the display quality of a display panel provided in this application embodiment may further include:

[0038] The target reset voltage value, target maximum gamma voltage, and second register value are stored in the memory corresponding to the display panel to be debugged. In this way, for display panels that cannot be removed, direct programming can effectively avoid loss.

[0039] Based on the same inventive concept, in a second aspect, embodiments of this application provide a display panel display quality improvement device for improving the display quality of a display panel to be adjusted. The device includes:

[0040] The binding point determination module is used to determine the target binding point of the display panel to be debugged, wherein the display quality of the display panel to be debugged based on the initial reset voltage value corresponding to the target binding point does not meet the target image quality requirements.

[0041] The debugging module is used to adjust the initial reset voltage value corresponding to the target binding point to obtain the target reset voltage value, so that the display quality of the display panel to be debugged meets the target image quality requirements based on the target reset voltage value.

[0042] Based on the same inventive concept, in a third aspect, embodiments of this application provide an electronic device, including:

[0043] The processor and the memory storing computer program instructions, wherein the processor, when executing the computer program instructions, implements the method for improving the display quality of the display panel as described in any embodiment of the first aspect.

[0044] Based on the same inventive concept, in a fourth aspect, embodiments of this application provide a computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, it implements the method for improving the display quality of a display panel as described in any embodiment of the first aspect.

[0045] According to the display panel display quality improvement method, apparatus, device and medium provided in the embodiments of this application, the target binding point whose display quality does not meet the requirements is first determined, and then the initial reset voltage value corresponding to the target binding point is adjusted to obtain the target reset voltage value, so that when the display panel to be tested is driven to display based on the target reset voltage value, the display quality of the target binding point meets the requirements, thereby improving the display quality of the display panel to be tested and solving the color deviation problem, such as solving the problem of greening at the edge of the display panel on the driver chip side. Attached Figure Description

[0046] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0047] Figure 1 A schematic diagram illustrating the display quality of a display panel in related technologies is shown;

[0048] Figure 2 This diagram illustrates a flowchart of a method for improving the display quality of a display panel according to an embodiment of this application.

[0049] Figure 3 This is a flowchart illustrating a method for improving the display quality of a display panel according to another embodiment of this application;

[0050] Figure 4 This is a schematic flowchart illustrating a method for improving the display quality of a display panel according to another embodiment of this application;

[0051] Figure 5 This is a schematic flowchart illustrating a method for improving the display quality of a display panel according to another embodiment of this application;

[0052] Figure 6 This is a schematic flowchart illustrating a method for improving the display quality of a display panel according to another embodiment of this application;

[0053] Figure 7 This is a schematic flowchart illustrating a method for improving the display quality of a display panel according to another embodiment of this application;

[0054] Figure 8 This is a schematic diagram of the structure of a display panel display quality improvement device according to an embodiment of this application;

[0055] Figure 9 This diagram illustrates the structure of an electronic device provided in one embodiment of the present application. Detailed Implementation

[0056] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0058] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0059] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0060] Before describing the technical solutions provided in the embodiments of this application, in order to facilitate understanding of the embodiments of this application, this application first specifically explains the problems existing in the related technologies:

[0061] In the production process of display panels, a large-size display panel motherboard can be formed first, and then the motherboard can be cut to obtain multiple smaller display panels. Through long-term research, the inventors discovered that, taking Low Temperature Poly-silicon (LTPS) display panels as an example, the cutting process affects the characteristics of components such as transistors in the motherboard. In particular, the transistors and other components in the display panels cut from the edges of the motherboard experience characteristic shifts. This results in color distortion in some display areas of the edge-cut display panels, even with the same image quality improvement program, especially noticeable at low brightness. For example, ... Figure 1 As shown, the display panel is cut at the edge, and a greenish tinge appears in the edge region Q1 on the side closer to the driver chip (IC).

[0062] A pixel driving circuit is used to drive the light-emitting elements of a display panel to emit light. The pixel driving circuit may include a driving transistor, the gate of which can receive a data voltage. The driving transistor can generate different driving currents depending on the magnitude of the data voltage, thereby causing different brightness levels of the light-emitting elements. The characteristic deviation of the driving transistor affects the magnitude of its driving current. Through long-term research, the inventors discovered that a reset voltage can be used to reset the gate of the driving transistor to improve the deviation of the driving transistor or to improve the data voltage writing to the gate of the driving transistor, thereby improving the driving current generated by the driving transistor and thus improving the brightness of the light-emitting elements.

[0063] In view of the inventor's above-mentioned research findings, the present application provides a method, apparatus, device and medium for improving the display quality of a display panel. The following will describe the various embodiments of the method, apparatus, device and medium for improving the display quality of a display panel in this application with reference to the accompanying drawings.

[0064] The technical concept of this application embodiment is as follows: first, identify the binding points whose display quality does not meet the requirements, and then adjust the reset voltage value corresponding to the binding point so that the display quality of the binding point meets the requirements, thereby improving the display quality of the display panel.

[0065] The following first introduces the display panel display quality improvement method provided in the embodiments of this application. The display panel display quality improvement method provided in the embodiments of this application can be used to improve the display quality of a display panel. To clearly distinguish different display panels, in this application, different display panels are named the display panel to be debugged and the sample display panel. Specifically, the display panel display quality improvement method provided in the embodiments of this application can be used to improve the display quality of the display panel to be debugged. It is understood that the display panel display quality improvement method provided in the embodiments of this application can also be used to improve the display quality of the sample display panel.

[0066] Figure 2 This diagram illustrates a flowchart of a method for improving the display quality of a display panel according to an embodiment of this application. Figure 2 As shown, the display panel display quality improvement method provided in this application embodiment may include S10 to S20.

[0067] S10, determine the target binding point of the display panel to be debugged. The display quality of the display panel to be debugged based on the initial reset voltage value corresponding to the target binding point does not meet the target image quality requirements.

[0068] S20, adjust the initial reset voltage value corresponding to the target binding point to obtain the target reset voltage value, so that the display quality of the display panel to be debugged meets the target image quality requirements based on the target reset voltage value.

[0069] The specific implementation methods of the above steps will be described in detail below.

[0070] According to the display panel display quality improvement method provided in the embodiments of this application, the target binding point whose display quality does not meet the requirements is first determined, and then the initial reset voltage value corresponding to the target binding point is adjusted to obtain the target reset voltage value, so that when the display panel to be tested is driven to display based on the target reset voltage value, the display quality of the target binding point meets the requirements, thereby improving the display quality of the display panel to be tested and solving the color deviation problem, such as solving the problem of the display area near the driver chip turning green.

[0071] The specific implementation methods for each of the above steps are described below.

[0072] First, let's introduce S10.

[0073] As described above, in the display panel production process, a large-size display panel master board can be formed first, and then the master board can be cut to obtain multiple smaller display panels. For example, the same gamma calibration method can be used to perform gamma calibration on each of the cut display panels. During the gamma calibration process, multiple binding points can be set, allowing gamma calibration to be performed only on these binding points, thus reducing gamma calibration time. It is understood that after gamma calibration on each of the cut display panels, the display parameters of the display panel meet the target parameter requirements. For example, the brightness and color coordinates of the display panel meet the target brightness and target color coordinate requirements, respectively.

[0074] For example, the gates of the driving transistors in each of the cut display panels can be reset using the same initial reset voltage value. That is, the reset voltage used when performing gamma adjustment on each of the cut display panels can be the initial reset voltage value. Furthermore, gamma adjustment on each of the cut display panels can be performed at the initial maximum gamma voltage. The data voltage of the display panel can be between the maximum gamma voltage and the minimum gamma voltage (VGSP). The maximum gamma voltage can be understood as the black-state voltage, and the minimum gamma voltage can be understood as the white-state voltage. The maximum gamma voltage can be greater than the minimum gamma voltage.

[0075] The initial reset voltage and the initial maximum gamma voltage can be set empirically. In some examples, the initial reset voltage can be a negative voltage. For ease of distinction, the initial reset voltage can be denoted as Vref, and the target reset voltage, described later, can be denoted as Vref'. The initial maximum gamma voltage can be denoted as VGMP, and the target maximum gamma voltage, described later, can be denoted as VGMP'.

[0076] Since some of the display panels obtained from the cutting process have color distortion issues (e.g., some areas appear green), the display panel with color distortion issues can be identified from the multiple display panels obtained from the cutting process based on the display conditions. This display panel with color distortion issues can be used as the display panel to be debugged.

[0077] Understandably, the display panel to be tested can be one of multiple display panels cut from the display panel motherboard.

[0078] Understandably, the display panel to be debugged may include multiple binding points. Through extensive research, the inventors discovered that the display panel to be debugged may only have color distortion issues at some of these binding points. Therefore, the test screen corresponding to each binding point of the display panel to be debugged can be lit sequentially, and then it can be determined whether the display quality of the test screen corresponding to each binding point meets the target image quality requirements. Binding points that do not meet the target image quality requirements are designated as target binding points. Conversely, binding points that meet the target image quality requirements can be designated as non-target binding points, and non-target binding points still correspond to the initial reset voltage value.

[0079] The target image quality requirements may include no color cast in the displayed image or an improvement in the color cast of the displayed image.

[0080] For example, the binding points of the display panel to be debugged may include brightness binding points and grayscale binding points.

[0081] Brightness binding points, also known as DBV binding points, are points on a brightness bar. A brightness binding point can be understood as a specific position on the brightness bar; the brightness of the same image displayed on the display panel under test varies depending on the position on the brightness bar. Different brightness binding points correspond to different brightness ranges. For example, a low brightness binding point might have a brightness range of 0–2 nits, while a high brightness binding point might have a brightness range of 0–600 nits.

[0082] The display panel to be debugged may include 0 to 255 gray levels, and the gray level binding point may be a certain gray level among 0 to 255 gray levels.

[0083] The display panel to be tested can display the image corresponding to gray levels 0 to 255 under each brightness binding point.

[0084] Target binding points can include at least one of target brightness binding points and target grayscale binding points. For example, if the display panel to be tested has a color cast problem at a certain brightness binding point, then the target binding point can include the target brightness binding point; if the display panel to be tested has a color cast problem at a certain grayscale binding point, then the target binding point can include the target grayscale binding point. Since there are 0 to 255 grayscale levels under each brightness binding point, if the display panel to be tested has a color cast problem at a certain brightness binding point, it is possible to further pinpoint which grayscale binding point under that brightness binding point has the color cast problem. Therefore, target binding points can include both target brightness binding points and target grayscale binding points.

[0085] Next, let's introduce S20.

[0086] During the adjustment of the initial reset voltage value, adjustments can be made in certain step sizes, such as 0.05V. After each adjustment, the display panel under test can be set to display based on the adjusted reset voltage value, and it can be determined whether the display quality meets the target image quality requirements. If it does not meet the target image quality requirements, the reset voltage value is adjusted again until the display quality of the display panel under test, based on the final adjusted reset voltage value, meets the target image quality requirements. The final adjusted reset voltage value is then considered the target reset voltage value.

[0087] Specifically, in the process of adjusting the initial reset voltage value, it may be necessary to add a certain adjustment step size each time, or it may be necessary to subtract a certain adjustment step size each time. The specific adjustment direction can be determined according to the actual situation.

[0088] Each grayscale level under the target brightness binding point can correspond to the target reset voltage value.

[0089] Understandably, after the display panel to be debugged leaves the factory, when the user actually uses the display panel to be debugged, the display panel to be debugged can display the image corresponding to the target binding point based on the target reset voltage value, and the display panel to be debugged can display the image corresponding to the non-target binding point based on the initial reset voltage value.

[0090] Through long-term research, the inventors discovered that since the reset voltage resets the gate of the driving transistor in the pixel driving circuit, the actual data voltage written to or to be written to the gate of the driving transistor will also change when the reset voltage changes. If the initial maximum gamma voltage VGMP is still used at the target binding point, the display panel to be debugged may still have problems such as insufficient blackness or color deviation, and the problem will not be well improved.

[0091] In some embodiments, such as Figure 3 As shown, after S20, the display quality improvement method for the display panel provided in this application embodiment may further include S31 and S32.

[0092] S31, obtain the data voltage values ​​of the sub-pixels of various colors of the display panel to be debugged at the reference grayscale under the target brightness binding point;

[0093] S32, based on the maximum data voltage value of the sub-pixels of various colors of the display panel to be debugged in the reference grayscale corresponding to the data voltage values, determine the target maximum gamma voltage corresponding to the target brightness binding point.

[0094] In this embodiment, after determining the target reset voltage value corresponding to the target brightness binding point, the maximum gamma voltage is adjusted to determine the target maximum gamma voltage corresponding to the target brightness binding point. This can better improve the color cast problem or solve the problem that the black state of the display panel to be debugged is not black enough.

[0095] In S31, the display panel to be debugged can be positioned at the target brightness binding point, and the target reset voltage value can be provided to the display panel to be debugged. The data voltage values ​​corresponding to the sub-pixels of various colors of the display panel to be debugged at the reference grayscale can be captured respectively.

[0096] Specifically, the display panel to be debugged may include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B. The data voltage values ​​Vdata_R, Vdata_G, and Vdata_B corresponding to the red sub-pixel R, green sub-pixel G, and blue sub-pixel B under the target brightness binding point and the reference grayscale can be captured respectively.

[0097] As mentioned above, the maximum gamma voltage can be the black-state voltage, which means the maximum gamma voltage can be the data voltage corresponding to 0 grayscale. To ensure the accuracy of the obtained target maximum gamma voltage, the reference grayscale can be relatively close to 0 grayscale, for example, the reference grayscale can be 1 grayscale.

[0098] In S32, in order to better avoid the problem that the black state of the display panel to be debugged is not black enough, the target maximum gamma voltage can be greater than the maximum data voltage value among the data voltage values ​​Vdata_R, Vdata_G, and Vdata_B.

[0099] The inventors discovered that when the reference grayscale is 1 grayscale, a difference between the target maximum gamma voltage and the maximum data voltage value is greater than or equal to 0.3V, the color cast problem can be improved or the problem of insufficient black in the black state of the display panel to be debugged can be solved.

[0100] As described above, the same gamma adjustment method can be used to perform gamma adjustment on each display panel obtained from the cutting process. The display panel to be adjusted can be one of multiple display panels obtained from the cutting process of the display panel motherboard. That is to say, before S10, gamma adjustment of the display panel to be adjusted can already be performed. Theoretically, after S32, the brightness and color coordinates of the display panel to be adjusted under the target brightness binding point and the target grayscale binding point should meet the requirements. However, after long-term research, the inventors also found that after S32, there are cases where the brightness and color coordinates of the display panel to be adjusted under the target brightness binding point and the target grayscale binding point do not meet the requirements. This is because the reset voltage, data voltage, and maximum gamma voltage will affect each other. When the reset voltage value is adjusted from the initial reset voltage value to the target reset voltage value, and the maximum gamma voltage is adjusted from the initial maximum gamma voltage to the target maximum gamma voltage, the data voltage will change, and the magnitude of the data voltage is determined by the magnitude of the gamma register value.

[0101] As an example, such as Figure 4 As shown, the display panel display quality improvement method provided in this application embodiment may further include S41 to S42.

[0102] S41, obtain the first register value corresponding to the target grayscale binding point under the target brightness binding point at the initial reset voltage value and the initial maximum gamma voltage, and obtain the compensation coefficient corresponding to the target grayscale binding point under the target reset voltage value and the target maximum gamma voltage, wherein the display parameters of the display panel to be debugged under the first register value meet the target parameter requirements.

[0103] S42, based on the first register value and the compensation coefficient, determine the second register value corresponding to the target grayscale binding point under the target reset voltage value and the target maximum gamma voltage.

[0104] Understandably, the first register value is the register value obtained after gamma adjustment of the target grayscale binding point under the target brightness binding point of the display panel to be debugged, under the initial reset voltage value and the initial maximum gamma voltage.

[0105] In this embodiment, under the target reset voltage and target maximum gamma voltage, the target grayscale binding point no longer corresponds to the first register value. Instead, a compensation coefficient is used to compensate the first register value, thereby obtaining the second register value corresponding to the target grayscale binding point. This ensures that the display parameters of the display panel under test meet the target parameter requirements under the target brightness binding point and target grayscale binding point. Furthermore, directly obtaining the second register value based on the compensation coefficient eliminates the need for gamma calibration of the display panel under test to determine the second register value, thus improving efficiency.

[0106] In S41, the display parameters may include at least one of the display brightness and the display color coordinates, and the corresponding target parameter requirements may include at least one of the target brightness requirements and the target color coordinate requirements.

[0107] The target parameter requirements for different target grayscale binding points under the same target brightness binding point can be different.

[0108] When the display panel to be debugged includes sub-pixels of multiple colors, the first register value in S41 may include the first register values ​​corresponding to the sub-pixels of multiple colors respectively, and the compensation coefficient may include the compensation coefficients corresponding to the sub-pixels of multiple colors respectively.

[0109] In S42, as an example, the product of the first register value and the compensation coefficient can be used as the second register value.

[0110] For example, the first register value of the red sub-pixel R is Rv01, the compensation coefficient of the red sub-pixel R is Roffset, the second register value of the red sub-pixel R is Rv02, and Rv02 = Rv01 * Roffset.

[0111] Similarly, the first register value of the green sub-pixel G is Gv01, the compensation coefficient of the green sub-pixel G is Goffset, the second register value of the green sub-pixel G is Gv02, and Gv02 = Gv01 * Goffset.

[0112] The first register value of blue sub-pixel B is Bv01, the compensation coefficient of blue sub-pixel B is Boffset, the second register value of blue sub-pixel B is Bv02, and Bv02 = Bv01 * Boffset.

[0113] In some alternative embodiments, such as Figure 5 As shown, prior to S41, the display quality improvement method for the display panel provided in this application embodiment may further include S51 to S53.

[0114] S51, obtain the first sample register values ​​corresponding to the target grayscale binding points of multiple sample display panels under the target brightness binding points under the initial reset voltage value and the initial maximum gamma voltage, wherein the display parameters of the sample display panels under their corresponding first sample register values ​​meet the target parameter requirements, and the display image quality of the sample display panels based on the initial reset voltage value corresponding to the target binding point does not meet the target image quality requirements.

[0115] S52, under the target reset voltage value and the target maximum gamma voltage, adjust the first sample register value corresponding to the target grayscale binding point of multiple sample display panels under the target brightness binding point to obtain the second sample register value, wherein the display parameters of the sample display panel under its corresponding second sample register value meet the target parameter requirements;

[0116] S53 determines the compensation coefficient based on multiple first sample register values ​​and multiple second sample register values.

[0117] Understandably, the first sample register value is the register value obtained after gamma adjustment of the target grayscale point under the target brightness point of the sample display panel at the initial reset voltage value and the initial maximum gamma voltage. Since the display quality of the sample display panel based on the initial reset voltage value corresponding to the target point does not meet the target image quality requirements, it can be assumed that the sample display panel also has a color cast problem at the target point.

[0118] In this embodiment, a compensation coefficient is determined based on multiple first sample register values ​​and multiple second sample register values ​​of multiple sample display panels. This compensation coefficient is determined by multiple sample data, so the compensation coefficient determined by multiple sample data is more accurate than arbitrarily setting a compensation coefficient.

[0119] In step S51, as described above, since some of the multiple display panels obtained from the cutting process have color cast issues (e.g., some areas appear greenish), the display panels with color cast issues are identified from the multiple display panels obtained from the cutting process, and these multiple display panels with color cast issues are used as sample display panels. Preferably, the multiple sample display panels can belong to the same display panel motherboard. Of course, the multiple sample display panels can also belong to different display panel motherboards.

[0120] Similarly, in S51, the display parameters may include at least one of the display brightness and the display color coordinates, and the corresponding target parameter requirements may include at least one of the target brightness requirements and the target color coordinate requirements.

[0121] When the sample display panel includes sub-pixels of multiple colors, the first sample register value in S51 may include the first sample register values ​​corresponding to the sub-pixels of multiple colors respectively.

[0122] As an example, since display panels in the same batch have similar characteristics, multiple sample display panels and the display panel to be debugged can be from the same batch, so that the compensation coefficient determined by the sample display panels is more consistent with the actual situation of the display panel to be debugged.

[0123] In S52, under the target reset voltage value and the target maximum gamma voltage, the target grayscale binding point under the target brightness binding point of each sample display panel is gamma-tuned to obtain the second register value corresponding to each sample display panel.

[0124] Similarly, in S52, the display parameters may include at least one of the display brightness and the display color coordinates, and the corresponding target parameter requirements may include at least one of the target brightness requirements and the target color coordinate requirements.

[0125] When the sample display panel includes sub-pixels of multiple colors, the second sample register value in S52 may include the second sample register values ​​corresponding to the sub-pixels of multiple colors respectively.

[0126] In some alternative embodiments, such as Figure 6 As shown, S53 may specifically include S531 to S533.

[0127] S531, determine the first common register value based on multiple first sample register values, wherein the first common register value can represent multiple first sample register values;

[0128] S532, determine the value of the second common register based on multiple second sample register values, wherein the value of the second common register can represent multiple second sample register values;

[0129] S533 determines the compensation coefficient based on the values ​​of the first and second common registers.

[0130] In this embodiment, since the first common register value can represent the distribution pattern of multiple first sample register values ​​and the second common register value can represent the distribution pattern of multiple second sample register values, the compensation coefficient determined by the first common register value and the second common register value can better match the actual situation of the display panel to be debugged, making the compensation coefficient more accurate. This compensation coefficient can also be applied to other display panels that also have color deviation problems.

[0131] As an example, the first common register value may represent the central tendency of multiple first sample register values, and the second common register value may represent the central tendency of multiple second sample register values.

[0132] Specifically, S531 may include: using the value that appears most frequently among a plurality of first sample register values ​​as the first common register value. Specifically, S532 may include: using the value that appears most frequently among a plurality of second sample register values ​​as the second common register value.

[0133] For example, there are n sample display panels, and correspondingly, the first sample register has n values, and the second sample register also has n values.

[0134] For example, if n is 10, among the 10 first sample register values, 5 first sample register values ​​are V1, 3 first sample register values ​​are V2, and 2 first sample register values ​​are V3. Then the first sample register value V1 appears the most often, so the first sample register value V1 can be used as the first common register value.

[0135] Similarly, among the 10 second sample register values, 2 are first sample register values ​​V4, 6 are second sample register values ​​V5, and 2 are second sample register values ​​V6. Therefore, the second sample register value V5 appears the most frequently, so the second sample register value V5 can be used as the second common register value.

[0136] As another example, S531 may specifically include: using the average of multiple first sample register values ​​as a first common register value. S532 may specifically include: using the average of multiple second sample register values ​​as a second common register value.

[0137] Taking n=10 as an example, among the 10 first sample register values, 5 first sample register values ​​are V1, 3 first sample register values ​​are V2, and 2 first sample register values ​​are V3. Then the value (5*V1+3*V2+2*V3) / 10 can be used as the first common register value.

[0138] Similarly, among the 10 second sample register values, 2 are V4, 6 are V5, and 2 are V6. Therefore, the value (2*V4+6*V5+2*V6) / 10 can be used as the second common register value.

[0139] Understandably, the larger n is, the more representative the determined values ​​of the first and second common registers will be.

[0140] In some embodiments, S533 may specifically include: determining the difference between the first common register value and the second common register value, and using the ratio of the difference to the first common register value as a compensation coefficient.

[0141] For example, the first common register value corresponding to the red sub-pixel R is denoted as Rv01', the second common register value corresponding to the red sub-pixel R is denoted as Rv02', and the compensation coefficient corresponding to the red sub-pixel R is denoted as Roffset. Then Roffset = (Rv01' - Rv02') / Rv01'.

[0142] Let the first common register value corresponding to the green sub-pixel G be denoted as Gv01', the second common register value corresponding to the green sub-pixel G be denoted as Gv02', and the compensation coefficient corresponding to the green sub-pixel G be denoted as Goffset. Then, Goffset = (Gv01' - Gv02') / Gv01'.

[0143] Let the first common register value corresponding to the blue sub-pixel B be denoted as Bv01', the second common register value corresponding to the blue sub-pixel B be denoted as Bv02', and the compensation coefficient corresponding to the blue sub-pixel B be denoted as Boffset. Then, Boffset = (Bv01' - Bv02') / Bv01'.

[0144] In some alternative embodiments, such as Figure 7 As shown, after S42, the method for improving the display quality of the display panel provided in this application embodiment may further include S70.

[0145] S70 stores the target reset voltage value, the target maximum gamma voltage, and the second register value into the memory corresponding to the display panel to be debugged.

[0146] For example, the target reset voltage value Vref', the target maximum gamma voltage VGMP', and the second register value can be stored in the memory corresponding to the display panel to be debugged by programming. In this way, for display panels that cannot be removed, direct programming can effectively avoid loss.

[0147] For example, as described above, when performing gamma calibration on each binding point of each cut display panel, the reset voltage value used can be the initial reset voltage value. Furthermore, when performing gamma calibration on each cut display panel, calibration can be performed at the initial maximum gamma voltage. Therefore, after gamma calibration, the initial reset voltage value, the initial maximum gamma voltage, and the register values ​​corresponding to each binding point are stored in the memory corresponding to the display panel.

[0148] For the display panels with color cast issues among the multiple display panels obtained from the cutting process, which are the display panels to be debugged, the target reset voltage value, target maximum gamma voltage, and second register value corresponding to the target binding point with color cast issues will be further determined. The memory corresponding to the display panel to be debugged may already store the initial reset voltage value, initial maximum gamma voltage, and register values ​​corresponding to each binding point. In this case, the target reset voltage value, target maximum gamma voltage, and second register value corresponding to the target binding point can replace the initial reset voltage value, initial maximum gamma voltage, and register value already stored for that binding point.

[0149] Based on the same inventive concept, embodiments of this application also provide a display panel display quality improvement device for improving the display quality of a display panel to be adjusted. For example... Figure 8 As shown, the display panel display quality improvement device 800 provided in this application embodiment may include a binding point determination module 801 and a debugging module 802.

[0150] The binding point determination module 801 is used to determine the target binding point of the display panel to be debugged, wherein the display quality of the display panel to be debugged based on the initial reset voltage value corresponding to the target binding point does not meet the target image quality requirements.

[0151] The debugging module 802 is used to adjust the initial reset voltage value corresponding to the target binding point to obtain the target reset voltage value, so that the display quality of the display panel to be debugged meets the target image quality requirements based on the target reset voltage value.

[0152] According to the display panel display quality improvement device provided in the embodiments of this application, the target binding point whose display quality does not meet the requirements is first determined, and then the initial reset voltage value corresponding to the target binding point is adjusted to obtain the target reset voltage value, so that when the display panel to be tested is driven to display based on the target reset voltage value, the display quality of the target binding point meets the requirements, thereby improving the display quality of the display panel to be tested and solving the color deviation problem, such as solving the problem of greening in the display area near the driver chip.

[0153] In some alternative embodiments, the debugging module 802 may also be used for:

[0154] Under the target brightness binding point, obtain the data voltage values ​​of the sub-pixels of various colors of the display panel to be debugged at the reference grayscale.

[0155] Based on the maximum data voltage value of the sub-pixels of various colors in the display panel to be debugged, among the data voltage values ​​corresponding to the reference grayscale, determine the target maximum gamma voltage corresponding to the target brightness binding point;

[0156] Preferably, the target maximum gamma voltage is greater than the maximum data voltage value;

[0157] Preferably, the reference gray level is 1 gray level, and the difference between the target maximum gamma voltage and the maximum data voltage value is greater than or equal to 0.3V.

[0158] In some optional embodiments, the target binding point further includes a target grayscale binding point, and the debugging module 802 can also be used for:

[0159] Obtain the first register value corresponding to the target grayscale binding point under the target brightness binding point at the initial reset voltage value and the initial maximum gamma voltage, and obtain the compensation coefficient corresponding to the target grayscale binding point under the target brightness binding point at the target reset voltage value and the target maximum gamma voltage. The display parameters of the display panel to be debugged under the first register value meet the target parameter requirements.

[0160] Based on the first register value and the compensation coefficient, determine the second register value corresponding to the target grayscale binding point under the target reset voltage value and the target maximum gamma voltage.

[0161] In some alternative embodiments, the debugging module 802 may also be used for:

[0162] Under the initial reset voltage value and the initial maximum gamma voltage, obtain the first sample register values ​​corresponding to the target grayscale binding points of multiple sample display panels under the target brightness binding points, wherein the display parameters of the sample display panels under their corresponding first sample register values ​​meet the target parameter requirements, and the display image quality of the sample display panels based on the initial reset voltage value corresponding to the target binding point does not meet the target image quality requirements.

[0163] Under the target reset voltage and the target maximum gamma voltage, the first sample register values ​​corresponding to the target grayscale binding points of multiple sample display panels under the target brightness binding points are adjusted to obtain the second sample register values. The display parameters of the sample display panels under their corresponding second sample register values ​​meet the target parameter requirements.

[0164] The compensation coefficient is determined based on multiple first sample register values ​​and multiple second sample register values;

[0165] Preferably, the multiple sample display panels and the display panel to be debugged are from the same batch of display panels.

[0166] In some alternative embodiments, the debugging module 802 may also be used for:

[0167] A first common register value is determined based on multiple first sample register values, wherein the first common register value can represent multiple first sample register values;

[0168] A second common register value is determined based on multiple second sample register values, wherein the second common register value can represent multiple second sample register values;

[0169] The compensation coefficient is determined based on the values ​​of the first and second common registers.

[0170] In some alternative embodiments, the debugging module 802 may also be used for:

[0171] The value that appears most frequently among the multiple first sample register values ​​is taken as the first common register value;

[0172] The steps for determining the value of the second common register based on multiple second sample register values ​​specifically include:

[0173] The value that appears most frequently among the multiple second sample register values ​​is taken as the second common register value;

[0174] Alternatively, the step of determining the first common register value based on multiple first sample register values ​​specifically includes:

[0175] The average of multiple first sample register values ​​is used as the first common register value;

[0176] The steps for determining the value of the second common register based on multiple second sample register values ​​specifically include:

[0177] The average of multiple second sample register values ​​is used as the second common register value;

[0178] Preferably, the step of determining the compensation coefficient based on the first common register value and the second common register value specifically includes:

[0179] Determine the difference between the first common register value and the second common register value, and use the ratio of the difference to the first common register value as the compensation coefficient.

[0180] In some optional embodiments, the display panel image quality improvement device provided in this application may further include a storage enabling module, which may be used for:

[0181] Store the target reset voltage value, the target maximum gamma voltage, and the second register value into the memory corresponding to the display panel to be debugged.

[0182] The display panel image quality improvement device in this application embodiment can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile electronic device or a non-mobile electronic device. For example, mobile electronic devices can be mobile phones, tablets, laptops, PDAs, in-vehicle electronic devices, wearable devices, ultra-mobile personal computers (UMPCs), netbooks, or personal digital assistants (PDAs), etc., while non-mobile electronic devices can be servers, network attached storage (NAS), personal computers (PCs), televisions (TVs), ATMs, or self-service machines, etc. This application embodiment does not impose specific limitations.

[0183] The display panel image quality improvement device provided in this application embodiment can achieve... Figure 1 To avoid repetition, the various processes in the embodiment of the method for improving the display quality of the display panel will not be described again here.

[0184] Figure 9 A schematic diagram of the hardware structure of the electronic device provided in an embodiment of this application is shown.

[0185] An electronic device may include a processor 901 and a memory 902 storing computer program instructions.

[0186] Specifically, the processor 901 may include a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement the embodiments of the present invention.

[0187] Memory 902 may include mass storage for data or instructions. For example, and not limitingly, memory 902 may include a hard disk drive (HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 902 may include removable or non-removable (or fixed) media. Where appropriate, memory 902 may be internal or external to the integrated gateway disaster recovery device. In a particular embodiment, memory 902 is non-volatile solid-state memory. In a particular embodiment, memory 902 includes read-only memory (ROM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these. Exemplarily, memory may include non-volatile transient memory.

[0188] The processor 901 reads and executes computer program instructions stored in the memory 902 to implement any of the display panel display quality improvement methods in the above embodiments.

[0189] In one example, the electronic device may also include a communication interface 903 and a bus 910. Wherein, as... Figure 9 As shown, the processor 901, memory 902, and communication interface 903 are connected through bus 910 and complete communication with each other.

[0190] The communication interface 903 is mainly used to realize communication between various modules, devices, units and / or equipment in the embodiments of the present invention.

[0191] Bus 910 includes hardware, software, or both, that couples components of an electronic device together. For example, and not limitingly, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, bus 910 may include one or more buses. While specific buses are described and illustrated in embodiments of the invention, the invention contemplates any suitable bus or interconnect.

[0192] The electronic device can execute the display panel display quality improvement method in the embodiments of this application, thereby achieving a combination of Figure 1 and Figure 8 The described display panel display quality improvement method and display panel display quality improvement device.

[0193] This application also provides a computer-readable storage medium storing a computer program. When executed by a processor, the computer program can implement the display panel image quality improvement method described in the above embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here. The aforementioned computer-readable storage medium may include read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, etc., and is not limited thereto.

[0194] The functional blocks shown in the above-described structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Computer-readable medium" can include any medium capable of storing or transmitting information. Examples of computer-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0195] According to embodiments of this application, the computer-readable storage medium may be a non-transitory computer-readable storage medium.

[0196] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0197] The aspects of this application have been described above with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It should be understood that each block in the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowchart illustrations and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by dedicated hardware performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0198] The embodiments described above are not exhaustive, nor do they limit the application to the specific embodiments described herein. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A method for improving the display quality of a display panel, characterized in that, The method for improving the display quality of a display panel to be debugged includes: The target binding point of the display panel to be debugged is determined, wherein the display quality of the display panel to be debugged based on the initial reset voltage value corresponding to the target binding point does not meet the target image quality requirements; Adjust the initial reset voltage value corresponding to the target binding point to obtain the target reset voltage value, so that the display quality of the display panel to be debugged based on the target reset voltage value meets the target image quality requirements; The display panel to be debugged includes a pixel driving circuit, which includes a driving transistor. A reset voltage is used to reset the gate of the driving transistor.

2. The method according to claim 1, characterized in that, The target binding point includes a target brightness binding point. After the step of adjusting the initial reset voltage value corresponding to the target binding point to obtain the target reset voltage value, the method further includes: Under the target brightness binding point, obtain the data voltage values ​​of the sub-pixels of various colors of the display panel to be debugged at the reference grayscale respectively; Based on the maximum data voltage value of the sub-pixels of various colors on the display panel to be debugged in the reference grayscale corresponding to the data voltage values, the target maximum gamma voltage corresponding to the target brightness binding point is determined.

3. The method according to claim 2, characterized in that, The target maximum gamma voltage is greater than the maximum data voltage value.

4. The method according to claim 2, characterized in that, The reference gray level is 1 gray level, and the difference between the target maximum gamma voltage and the maximum data voltage value is greater than or equal to 0.3V.

5. The method according to claim 2, characterized in that, The target binding point further includes a target grayscale binding point. After the step of adjusting the initial reset voltage value corresponding to the target binding point to obtain the target reset voltage value, the method further includes: The first register value corresponding to the target grayscale binding point under the target brightness binding point is obtained under the initial reset voltage value and the initial maximum gamma voltage. The compensation coefficient corresponding to the target grayscale binding point under the target brightness binding point is also obtained under the target reset voltage value and the target maximum gamma voltage. The display parameters of the display panel to be debugged under the first register value meet the target parameter requirements. Based on the first register value and the compensation coefficient, determine the second register value corresponding to the target grayscale binding point under the target reset voltage value and the target maximum gamma voltage.

6. The method according to claim 5, characterized in that, Before the step of obtaining the compensation coefficient corresponding to the target grayscale binding point under the target reset voltage value and the target maximum gamma voltage, and under the target brightness binding point, the method further includes: Under the initial reset voltage value and the initial maximum gamma voltage, obtain the first sample register values ​​corresponding to the target grayscale binding points of multiple sample display panels under the target brightness binding point, wherein the display parameters of the sample display panels under their corresponding first sample register values ​​meet the target parameter requirements, and the display image quality of the sample display panels based on the initial reset voltage value corresponding to the target binding point does not meet the target image quality requirements. Under the target reset voltage value and the target maximum gamma voltage, the first sample register values ​​corresponding to the target grayscale binding points of multiple sample display panels under the target brightness binding points are adjusted to obtain the second sample register values, wherein the display parameters of the sample display panels under their corresponding second sample register values ​​meet the target parameter requirements; The compensation coefficient is determined based on a plurality of first sample register values ​​and a plurality of second sample register values.

7. The method according to claim 6, characterized in that, The multiple sample display panels and the display panel to be debugged are from the same batch of display panels.

8. The method according to claim 6, characterized in that, The step of determining the compensation coefficient based on a plurality of first sample register values ​​and a plurality of second sample register values ​​specifically includes: A first common register value is determined based on multiple first sample register values, wherein the first common register value may represent multiple first sample register values; A second common register value is determined based on a plurality of second sample register values, wherein the second common register value may represent a plurality of second sample register values; The compensation coefficient is determined based on the first common register value and the second common register value.

9. The method according to claim 8, characterized in that, The step of determining the first common register value based on multiple first sample register values ​​specifically includes: The value that appears most frequently among the multiple first sample register values ​​is taken as the first common register value; The step of determining the second common register value based on multiple second sample register values ​​specifically includes: The value that appears most frequently among the multiple second sample register values ​​is taken as the second common register value; Alternatively, the step of determining the first common register value based on multiple first sample register values ​​specifically includes: The average of the multiple first sample register values ​​is used as the first common register value; The step of determining the second common register value based on multiple second sample register values ​​specifically includes: The average of the multiple second sample register values ​​is used as the second common register value.

10. The method according to claim 9, characterized in that, The step of determining the compensation coefficient based on the first common register value and the second common register value specifically includes: The difference between the first common register value and the second common register value is determined, and the ratio of the difference to the first common register value is used as the compensation coefficient.

11. The method according to claim 5, characterized in that, The method further includes: The target reset voltage value, the target maximum gamma voltage, and the second register value are stored in the memory corresponding to the display panel to be debugged.

12. A display panel image quality improvement device, characterized in that, The device is used to improve the display quality of a display panel under test, and includes: The binding point determination module is used to determine the target binding point of the display panel to be debugged, wherein the display quality of the display panel to be debugged based on the initial reset voltage value corresponding to the target binding point does not meet the target image quality requirements; The debugging module is used to adjust the initial reset voltage value corresponding to the target binding point to obtain the target reset voltage value, so that the display quality of the display panel to be debugged based on the target reset voltage value meets the target image quality requirements. The display panel to be debugged includes a pixel driving circuit, which includes a driving transistor. A reset voltage is used to reset the gate of the driving transistor.

13. An electronic device, characterized in that, include: The processor and the memory storing computer program instructions, wherein the processor, when executing the computer program instructions, implements the display quality improvement method for the display panel as described in any one of claims 1 to 11.

14. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, which, when executed by a processor, implements the method for improving the display quality of a display panel as described in any one of claims 1 to 11.

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