Display panel alignment method, display panel gamma debugging method and device

Abstract

The embodiments of the present application provide a display panel alignment method, a display panel gamma debugging method, and a device, which control a predetermined area of the display panel to display an alignment pattern that matches the probe size, wherein the brightness value of the alignment pattern is smaller than the brightness value of other areas around the predetermined area; control the probe to move along a first direction from a starting position, and collect multiple first brightness values at different positions on a first moving path along the first direction, to obtain a first coordinate corresponding to the minimum first brightness value on the first moving path; control the probe to move along a second direction, and collect multiple second brightness values at different positions on a second moving path along the second direction, to obtain a second coordinate corresponding to the minimum second brightness value on the second moving path; determine the alignment position based on the first coordinate and the second coordinate. The embodiments of the present application help to achieve precise and automated alignment between the center of the probe and the center of the alignment pattern.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and in particular relates to a display panel alignment method, a display panel gamma adjustment method and a device. Background Art

[0002] With the rapid development of electronic devices, users are increasingly demanding a higher screen-to-body ratio. To improve this, under-screen camera designs have emerged, dividing the display area of the display panel into a secondary screen area and a main screen area, with the secondary screen area corresponding to the camera and other photosensitive elements.

[0003] To ensure that the brightness and color of the secondary screen are consistent with those of the primary screen, gamma adjustment is typically performed on both the secondary and primary screens. The accuracy of gamma adjustment (especially for the secondary screen) depends primarily on the precise alignment of the optical measurement device's probe with the secondary or primary screen. However, inaccurate alignment between the optical measurement device's probe and the display panel currently exists. Summary of the Invention

[0004] The embodiments of the present application provide a display panel alignment method, a display panel gamma debugging method and a device, which can solve the problem of inaccurate alignment between a probe of an optical measurement device and a display panel.

[0005] In a first aspect, an embodiment of the present application provides a method for aligning a display panel, and the method for aligning a display panel includes: controlling a predetermined area of the display panel to display an alignment pattern that is adapted to the probe size, wherein the brightness value of the alignment pattern is smaller than the brightness value of other areas around the predetermined area; controlling the probe to move from a starting position along a first direction, and collecting multiple first brightness values at different positions on a first moving path along the first direction, to obtain a first coordinate corresponding to the minimum first brightness value on the first moving path; controlling the probe to move along a second direction, and collecting multiple second brightness values at different positions on a second moving path along the second direction, to obtain a second coordinate corresponding to the minimum second brightness value on the second moving path, wherein the second direction intersects the first direction; and determining the alignment position according to the first coordinate and the second coordinate.

[0006] According to an implementation scheme of the first aspect of the present application, collecting multiple first brightness values at different positions on a first moving path along a first direction to obtain a first coordinate corresponding to the minimum first brightness value on the first moving path may specifically include: determining whether the first brightness value corresponding to the i-th position on the first moving path is greater than the first brightness value corresponding to the i-1-th position on the first moving path, where the i-1-th position is the position before the i-th position, and i is a positive integer; when the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, determining the coordinate of the i-1-th position as the first coordinate; collecting multiple second brightness values at different positions on a second moving path along a second direction to obtain a second coordinate corresponding to the minimum second brightness value on the second moving path may specifically include: determining whether the second brightness value corresponding to the j-th position on the second moving path is greater than the second brightness value corresponding to the j-1-th position on the second moving path, where the j-1-th position is the position before the j-th position, and j is a positive integer; when the second brightness value corresponding to the j-th position is greater than the second brightness value corresponding to the j-1-th position, determining the coordinate of the j-1-th position as the second coordinate.

[0007] Because the closer the probe's center is to the center of the alignment pattern, the greater the overlap between the probe and the pattern. Therefore, the closer the probe's center is to the center of the alignment pattern, the smaller the brightness value it collects. Therefore, when the brightness value at the current probe position is greater than the brightness value at the previous position, it indicates that the probe's center has moved away from the center of the alignment pattern, meaning that the position before the current position was closest to the center of the alignment pattern (e.g., it coincided with the center of the alignment pattern). In this way, based on the inflection point where the brightness value collected by the probe changes from small to large, the center coordinates of the alignment pattern can be accurately determined.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, before determining the coordinates of the i-1th position as the first coordinates, the alignment method of the display panel may further include: when the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1th position, judging whether the first brightness values corresponding to the i+1th position to the i+nth position on the first moving path are all greater than the first brightness value corresponding to the i-1th position on the first moving path, the i+1th position is the position after the i-th position, the i+nth position is the n positions after the i-th position, and n is a positive integer; determining the coordinates of the i-1th position as the first coordinate may specifically include: when the first brightness values corresponding to the i+1th position to the i+nth position are all greater than the first brightness value corresponding to the i-1th position, determining the coordinates of the i-1th position as the first coordinate.

[0009] In this way, when the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, verification is performed through the first brightness values corresponding to the i+1-th position to the i+n-th position, which can improve the accuracy of the determined first coordinate, thereby improving the accuracy of the center coordinate of the final determined alignment pattern and effectively avoiding misjudgment.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, before controlling the probe to move along the second direction, the alignment method of the display panel may further include: controlling the probe to return to the i-1th position; after obtaining the second coordinate corresponding to the minimum second brightness value on the second moving path, the alignment method of the display panel may further include: controlling the probe to return to the j-1th position.

[0011] In this way, while determining the first coordinate and the second coordinate, the probe is aligned step by step on the other hand, which can shorten the alignment time of the probe and improve the speed of the alignment process.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the alignment method of the display panel may further include: controlling the probe to move in the reverse direction along the first direction, and collecting a plurality of third brightness values at different positions on the first reverse movement path, where the first reverse movement path is a path moving in the reverse direction along the first direction; determining whether the third brightness value corresponding to the p-th position on the first reverse movement path is greater than the third brightness value corresponding to the p-1-th position on the first reverse movement path, where the p-1-th position is the position before the p-th position, and p is a positive integer; when the third brightness value corresponding to the p-th position is greater than the p-th position, the third brightness value corresponding to the p-th position is greater than the p-th position. 1 position, determine whether the p-1th position is the same as the i-1th position; when the first brightness value corresponding to the ith position is greater than the first brightness value corresponding to the i-1th position, determine the coordinate of the i-1th position as the first coordinate, specifically including: when the p-1th position is the same as the i-1th position, determine the coordinate of the i-1th position as the first coordinate; when the p-1th position is different from the i-1th position, determine the average value of the coordinate of the p-1th position and the coordinate of the i-1th position as the first coordinate.

[0013] In this way, by controlling the probe to move in the opposite direction along the first direction to obtain the p-1th position, and using the p-1th position to calibrate and verify the i-1th position, the accuracy of the determined first coordinate can be improved, thereby improving the accuracy of the center coordinate of the final determined alignment pattern, and effectively avoiding misjudgment.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, controlling the probe to move along the first direction from the starting position specifically includes: determining the magnitude relationship between the first brightness value corresponding to the xth position on the first moving path and the first brightness value corresponding to the x-1th position on the first moving path, where the x-1th position is the previous position of the xth position, and x is a positive integer; when the first brightness value corresponding to the xth position is equal to the first brightness value corresponding to the x-1th position, controlling the probe to move along the first direction with a first step value and / or a first moving speed until the first brightness value corresponding to the xth position is less than the first brightness value corresponding to the x-1th position; when the first brightness value corresponding to the xth position is less than the first brightness value corresponding to the x-1th position, controlling the probe to move along the first direction with a second step value and / or a second moving speed until the first coordinate corresponding to the minimum first brightness value on the first moving path is obtained; wherein, the first step value is greater than the second step value, and the first moving speed is greater than the second moving speed.

[0015] When the first brightness value corresponding to the x-th position is equal to the first brightness value corresponding to the x-1-th position, it means that the probe has not overlapped with the alignment pattern, that is, the probe is still far away from the center of the alignment pattern. When the first brightness value corresponding to the x-th position is less than the first brightness value corresponding to the x-1-th position, it means that the probe begins to overlap with the alignment pattern, that is, the probe is close to the center of the alignment pattern. In this way, on the one hand, when the probe is far away from the center of the alignment pattern, controlling the movement of the probe with a larger first step value and / or a first moving speed can increase the alignment speed and shorten the alignment time; on the other hand, when the probe is close to the center of the alignment pattern, controlling the movement of the probe with a smaller second step value and / or a second moving speed can improve the alignment accuracy and accurately find the center of the alignment pattern.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel includes a first display area and a second display area, and the transmittance of the second display area is greater than the transmittance of the first display area; when the size of the probe is larger than the size of the second display area, the center of the second display area is used as the center of the alignment pattern, and the alignment pattern is displayed based on the second display area and the part of the first display area close to the second display area; when the size of the probe is less than or equal to the size of the second display area, the center of the second display area is used as the center of the alignment pattern, and the alignment pattern is displayed based on the second display area.

[0017] In this way, the embodiment of the present application can be adapted to probes of different sizes and second display areas of different shapes / sizes, that is, it can be adapted to a variety of application scenarios.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the second display area includes a light-transmitting area, the first display area includes a transition area surrounding the light-transmitting area, the transition area is provided with a driving device, and the light-transmitting area is not provided with a driving device; when the size of the probe is less than or equal to the size of the light-transmitting area, the center of the light-transmitting area is used as the center of the alignment pattern, and the alignment pattern is displayed based on the light-transmitting area.

[0019] In this way, the center of the probe can be aligned with the center of the light-transmitting area, ensuring that the brightness values collected by the probe are all brightness values of the light-transmitting area, that is, the accuracy of the brightness values collected by the probe is improved, which is conducive to improving the accuracy of the subsequent gamma debugging results of the second display area.

[0020] In the second aspect, an embodiment of the present application provides a gamma debugging method for a display panel, wherein the display panel includes a first display area and a second display area. The gamma debugging method for the display panel includes: controlling the probe to move to the first display area, and performing gamma debugging on the first display area; based on the alignment method of the display panel provided in the first aspect, moving the probe to the alignment position, and the alignment pattern is at least partially located in the second display area; performing gamma debugging on the second display area.

[0021] In a third aspect, an embodiment of the present application provides a gamma debugging device for a display panel, which is used to execute the gamma debugging method for a display panel provided in the second aspect. The gamma debugging device includes: a workbench for carrying the display panel; a first conveying part, located on at least one side of the workbench and extending along a first direction; a second conveying part, the second conveying part extending along a second direction and suspended above the workbench, the second conveying part being connected to the first conveying part, and the second conveying part being movable relative to the first conveying part along the first direction; a clamping part, connected to the second conveying part, and the clamping part being movable relative to the second conveying part along the second direction; a probe, fixedly mounted on the clamping part; and a controller, electrically connected to the first conveying part, the second conveying part and the probe.

[0022] According to any of the aforementioned embodiments of the third aspect of the present application, a first groove and a second groove are provided on the workbench, the first groove is used to place the display panel, and the second groove is located on one side of the first groove along the first direction; the gamma debugging device also includes a light-emitting part, which is located in the second groove, and the light-emitting part is strip-shaped and extends along the second direction.

[0023] In this way, by opening a first groove to place the display panel, the display panel can be positioned to ensure the accuracy of the alignment; by opening a second groove on the side of the first groove close to the second display area, the second groove can provide sufficient moving space for the probe to prevent the probe from colliding with the edge of the first groove during alignment; by arranging a light-emitting part in the second groove, it can be ensured that even if a part of the probe moves to the second groove, the brightness value collected by the probe will change from small to large, ensuring the smooth progress of the alignment.

[0024] According to any of the aforementioned embodiments of the third aspect of the present application, the first groove is connected to the second groove.

[0025] In this way, the first groove and the second groove can be integrally formed through the same process, which is beneficial to simplifying the production process and reducing the production cost of the gamma adjustment device for the display panel.

[0026] The display panel alignment method, display panel gamma debugging method and device of the embodiment of the present application control a predetermined area of the display panel to display an alignment pattern that is adapted to the probe size, wherein the brightness value of the alignment pattern is less than the brightness value of other areas around the predetermined area; the probe is controlled to move along a first direction from a starting position, and a plurality of first brightness values at different positions on a first moving path along the first direction are collected to obtain a first coordinate corresponding to the minimum first brightness value on the first moving path; the probe is controlled to move along a second direction, and a plurality of second brightness values at different positions on a second moving path along the second direction are collected to obtain a second coordinate corresponding to the minimum second brightness value on the second moving path, wherein the second direction intersects the first direction; the alignment position is determined based on the first coordinate and the second coordinate. The embodiment of the present application can accurately determine the center coordinate of the alignment pattern based on the first coordinate corresponding to the minimum first brightness value on the first moving path and the second coordinate corresponding to the minimum second brightness value on the second moving path, thereby achieving precise alignment of the probe and the alignment pattern and improving the accuracy of the alignment. In addition, during the alignment process, automatic alignment of the probe and the alignment pattern can be achieved without human intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 A structural diagram of a display panel;

[0029] Figure 2 A schematic top view of an alignment pattern in the alignment method for a display panel provided in an embodiment of the present application;

[0030] Figure 3 Another schematic top view of an alignment pattern in the display panel alignment method provided in an embodiment of the present application;

[0031] Figure 4 A schematic diagram of a flow chart of a display panel alignment method provided in an embodiment of the present application;

[0032] Figure 5A schematic diagram of an operation of a display panel alignment method provided in an embodiment of the present application;

[0033] Figure 6 Another operational schematic diagram of the display panel alignment method provided in an embodiment of the present application;

[0034] Figure 7 A schematic diagram of another operation of the display panel alignment method provided in an embodiment of the present application;

[0035] Figure 8 Another schematic flow chart of a method for aligning a display panel provided in an embodiment of the present application;

[0036] Figure 9 A schematic diagram of another flow chart of the display panel alignment method provided in an embodiment of the present application;

[0037] Figure 10 A schematic diagram of another flow chart of the display panel alignment method provided in an embodiment of the present application;

[0038] Figure 11 A schematic diagram of another flow chart of the display panel alignment method provided in an embodiment of the present application;

[0039] Figure 12 A schematic diagram of another flow chart of the display panel alignment method provided in an embodiment of the present application;

[0040] Figure 13 A schematic diagram of another flow chart of the display panel alignment method provided in an embodiment of the present application;

[0041] Figure 14 A schematic diagram of another operation of the display panel alignment method provided in an embodiment of the present application;

[0042] Figure 15 A schematic diagram of another flow chart of the display panel alignment method provided in an embodiment of the present application;

[0043] Figure 16 A schematic diagram of another operation of the display panel alignment method provided in an embodiment of the present application;

[0044] Figure 17 A schematic diagram of another flow chart of the display panel alignment method provided in an embodiment of the present application;

[0045] Figure 18 A schematic diagram of another operation of the display panel alignment method provided in an embodiment of the present application;

[0046] Figure 19 A schematic diagram of another flow chart of the display panel alignment method provided in an embodiment of the present application;

[0047] Figure 20 A schematic top view of a display panel provided in an embodiment of the present application;

[0048] Figure 21 Another schematic top view of a display panel provided in an embodiment of the present application;

[0049] Figure 22 An operational diagram of a gamma adjustment method for a display panel provided in an embodiment of the present application;

[0050] Figure 23 A schematic flow chart of a gamma adjustment method for a display panel provided in an embodiment of the present application;

[0051] Figure 24 Another operational diagram of the gamma adjustment method for a display panel provided in an embodiment of the present application;

[0052] Figure 25 A schematic structural diagram of a gamma adjustment device for a display panel provided in an embodiment of the present application;

[0053] Figure 26 Another structural diagram of the gamma adjustment device for a display panel provided in an embodiment of the present application;

[0054] Figure 27 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0055] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or device comprising the elements.

[0057] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0058] Before describing the technical solutions provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically describes the problems existing in the prior art:

[0059] like Figure 1 As shown, the display panel includes a main screen area 01' and a sub-screen area 02'. The sub-screen area 02' can be provided with a corresponding photosensitive element such as an under-screen camera. In order to improve the transmittance of the sub-screen area 02', the pixel area and / or pixel density of the sub-screen area 02' can be smaller than the pixel area and / or pixel density of the main screen area 01'. Therefore, due to the difference in pixel area and / or pixel density between the main screen area 01' and the sub-screen area 02', the gamma adjustment result of the main screen area 01' is not very suitable for the sub-screen area 02'.

[0060] Therefore, to ensure that the brightness and color of the secondary screen area are consistent with those of the main screen area, gamma adjustment can usually be performed on the secondary screen area and the main screen area separately. The accuracy of the gamma adjustment results (especially the gamma adjustment of the secondary screen area) mainly depends on the accurate alignment of the optical measurement equipment probe with the secondary screen area or the main screen area.

[0061] To facilitate understanding, let's take the secondary screen area as an example. The secondary screen area includes multiple sub-pixels. The driver chip (driver IC) provides drive signals to sub-pixels at different locations in the secondary screen area via signal lines, driving the sub-pixels in the secondary screen area to emit light. Because the sub-pixels at different locations in the secondary screen area are at different distances from the driver chip, the brightness at different locations in the secondary screen area is affected by the voltage drop (IR drop) on the signal line, such that one near the IC end is brighter and the other far from the IC end is darker. The brightness at the center of the secondary screen area can be considered the average of the brightness at the near IC end and the brightness at the far IC end. Therefore, the brightness at the center of the secondary screen area most objectively reflects the average brightness of the secondary screen area. Therefore, when performing gamma adjustment on the secondary screen area, it is best to align the center of the probe with the center of the secondary screen area. This way, the collected brightness value most objectively reflects the average brightness of the secondary screen area, which helps improve the accuracy of gamma adjustment.

[0062] However, the inventors of this application have discovered that the current optical measurement equipment suffers from inaccurate alignment between the probe and the display panel. For example, when performing gamma adjustment on the secondary screen area, the center of the probe cannot be accurately aligned with the center of the secondary screen area, resulting in poor gamma adjustment accuracy. For example, in some related technologies, the adjustment personnel are required to manually adjust the position of the probe and perform manual alignment, resulting in poor alignment accuracy between the probe and the display panel and a long alignment time.

[0063] In view of the above research findings of the inventors, the embodiments of the present application provide a display panel alignment method, a display panel gamma debugging method and a device, which can solve the technical problem of inaccurate alignment between the probe of the optical measurement equipment and the display panel in the related art.

[0064] The technical concept of the embodiment of the present application is as follows: controlling a predetermined area of the display panel to display an alignment pattern that is adapted to the probe size, wherein the brightness value of the alignment pattern is less than the brightness values of other areas around the predetermined area; controlling the probe to move along a first direction from a starting position, and collecting multiple first brightness values at different positions on a first movement path along the first direction, to obtain a first coordinate corresponding to the minimum first brightness value on the first movement path; controlling the probe to move along a second direction, and collecting multiple second brightness values at different positions on a second movement path along the second direction, to obtain a second coordinate corresponding to the minimum second brightness value on the second movement path, wherein the second direction intersects the first direction; and determining the alignment position based on the first coordinate and the second coordinate. In this way, based on the first coordinate corresponding to the minimum first brightness value on the first movement path and the second coordinate corresponding to the minimum second brightness value on the second movement path, the center coordinate of the alignment pattern can be accurately determined, thereby achieving precise alignment between the probe center and the center of the alignment pattern, thereby improving the accuracy of alignment.

[0065] The following first describes the alignment method of the display panel provided in the embodiment of the present application.

[0066] Figure 2 A schematic top view of an alignment pattern in the display panel alignment method provided in an embodiment of the present application. Figure 3 Another schematic top view of the alignment pattern in the display panel alignment method provided in an embodiment of the present application. Figure 4 A schematic flow chart of a method for aligning a display panel provided in an embodiment of the present application.

[0067] like Figure 4 As shown, the display panel alignment method provided in the embodiment of the present application may include the following steps S101 to S104.

[0068] S101 , controlling a predetermined area of a display panel to display an alignment pattern that matches the probe size, wherein a brightness value of the alignment pattern is smaller than a brightness value of other areas around the predetermined area.

[0069] like Figure 2 As shown, in an embodiment of the present application, in S101, a predetermined area of the display panel 10 can be controlled to display an alignment pattern 100 that is adapted to the probe size. The probe size can be understood as the size of the probe lens (cross section or light collecting surface), and the probe is a probe of an optical measuring device (such as a color analyzer). The adaptation of the alignment pattern 100 to the probe size can be understood as: the size of the alignment pattern 100 displayed in the predetermined area of the display panel 10 is exactly the same as the probe size, or the size of the alignment pattern 100 displayed in the predetermined area of the display panel 10 can be exactly the same as the size of a part of the probe lens. For example, taking the probe lens as a circle as an example, in Figure 2 In the embodiment shown, the size of the alignment pattern 100 displayed in a predetermined area of the display panel 10 is exactly the same as the size of the probe, that is, the alignment pattern 100 can be a circle with the same size as the probe. Figure 3 In the illustrated embodiment, the size of the alignment pattern 100 displayed in a predetermined area of the display panel 10 can be identical to the size of a portion of the probe's lens, that is, the alignment pattern 100 can be a portion of a circle having the same size as the probe. The predetermined area can be a pre-defined portion of the display panel 10, such as a secondary screen of the display panel 10, or portions of both the secondary screen and the primary screen of the display panel 10, although this embodiment of the present application is not limited thereto.

[0070] It should be noted that the size of the alignment pattern 100 is the same as the size of the probe, which can be understood as the size of the alignment pattern 100 being the same as the size of the probe within an allowable error. In other words, the difference between the size of the alignment pattern 100 and the size of the probe can be within the allowable error. The size of the error can be flexibly adjusted according to actual conditions and is not limited in this embodiment of the present application.

[0071] Continue to see Figure 2 or Figure 3 , the brightness value of the alignment pattern 100 is lower than the brightness values of other areas surrounding the predetermined area, that is, the brightness value of the alignment pattern 100 is lower than the brightness values of other areas surrounding the alignment pattern 100 on the display panel 10, so as to facilitate the subsequent determination of the center coordinates of the alignment pattern 100 based on the brightness changes. For example, in some embodiments, the alignment pattern 100 can be displayed in a predetermined area of the display panel 10, and the background image 200 can be displayed in other areas of the display panel 10 except the predetermined area. The brightness value of the alignment pattern 100 is lower than the brightness value of the background image 200. For example, for example, the background image 200 is white or other light-colored, and the alignment pattern 100 is black, gray, or other dark-colored.

[0072] S102 : Control the probe to move from the starting position along a first direction, and collect a plurality of first brightness values at different positions on a first moving path along the first direction, to obtain a first coordinate corresponding to the minimum first brightness value on the first moving path.

[0073] Figure 5 This is an operational diagram of the alignment method of the display panel provided in the embodiment of the present application. Figure 5 As shown, the first direction may be the column direction Y of the display panel 10, or the first direction may be the row direction X of the display panel 10, which is not limited in the present embodiment. Taking the first direction as the column direction Y of the display panel 10 as an example, in S101, the probe 500 may be controlled to move from the starting position P along the first direction (such as the column direction Y), i.e., along Figure 5 The first moving path s1 shown moves. It is easy to understand that at least part of the alignment pattern 100 is located on the first moving path s1, so that the probe 500 can collect the brightness value of the alignment pattern 100 when moving along the first moving path s1. In some specific examples, for example, the minimum distance L between the starting position P and the center O of the alignment pattern 100 in the second direction (such as the row direction X) can be made smaller than a preset first distance threshold, so that at least part of the alignment pattern 100 can be located on the first moving path s1. Among them, the first distance threshold can be flexibly set according to actual conditions. For example, the first distance threshold can be smaller than the radius of the alignment pattern 100. In actual operation, the starting position can be simply determined by the human eye.

[0074] As the probe 500 moves along the first direction, the probe 500 can collect multiple brightness values at different locations along a first movement path s1 in the first direction. For ease of distinction, the brightness values collected by the probe 500 along the first movement path s1 are referred to herein as first brightness values. For example, each time the probe 500 moves a certain distance along the first movement path s1, the probe 500 collects a brightness value and the coordinates of the center of the probe 500, thereby obtaining multiple first brightness values at different locations along the first movement path s1.

[0075] Figure 6 Another operation diagram of the alignment method of the display panel provided in the embodiment of the present application. Figure 6 As shown, assuming that the coordinates of the center O of the alignment pattern 100 are (x1, y1), and the first direction can be the column direction Y of the display panel 10. Then, when the center O' of the probe 500 moves along the first direction until its ordinate is equal to that of the center O of the alignment pattern 100, that is, when the center O' of the probe 500 is located on the line y = y1, the overlapping area between the probe 500 and the alignment pattern 100 is maximized, and the brightness value collected by the probe is minimized. At this time, the first coordinate (i.e., the coordinate of the center O' of the probe 500) is (x2, y1). In other words, after obtaining the first coordinate corresponding to the minimum first brightness value along the first movement path s1, at least one coordinate of the center O of the alignment pattern 100 (e.g., the ordinate y1) can be determined.

[0076] S103, controlling the probe to move along a second direction, and collecting multiple second brightness values at different positions on a second moving path along the second direction, to obtain a second coordinate corresponding to the minimum second brightness value on the second moving path, where the second direction intersects the first direction.

[0077] Continue to see Figure 6 The second direction may be the row direction X of the display panel 10, or the first direction may be the column direction Y of the display panel 10, which is not limited in the present embodiment. Taking the first direction being the column direction Y of the display panel 10 and the second direction being the row direction X of the display panel 10 as an example, in S102, the probe 500 may be controlled to move along a line y=y1 or y=y1±Δy (i.e., the second direction), where y1 is the ordinate y1 in the first coordinate system, and Δy may be flexibly adjusted based on actual conditions, and Δy may be smaller than the radius of the alignment pattern 100.

[0078] As the probe 500 moves along the second direction, the probe 500 can collect multiple brightness values at different locations along a second movement path s2 in the second direction. For ease of distinction, the brightness values collected by the probe 500 along the second movement path s2 are referred to herein as second brightness values. For example, each time the probe 500 moves a certain distance along the second movement path s2, the probe 500 collects a brightness value and the coordinates of the center of the probe 500, thereby obtaining multiple second brightness values at different locations along the second movement path s2.

[0079] Figure 7 This is another operation diagram of the display panel alignment method provided in the embodiment of the present application. Figure 7 As shown, assuming that the coordinates of the center O of the alignment pattern 100 are (x1, y1), the first direction can be the column direction Y of the display panel 10, and the second direction can be the row direction X of the display panel 10. Then, when the center O' of the probe 500 moves along the second direction until its horizontal coordinate is equal to that of the center O of the alignment pattern 100, that is, when the center O' of the probe 500 is located on the line x = x1, the overlapping area between the probe 500 and the alignment pattern 100 is maximized, and the brightness value collected by the probe is minimized. At this time, the second coordinate (i.e., the coordinate of the center O' of the probe 500) is (x1, y1) or (x1, y1±Δy). In other words, after obtaining the second coordinate corresponding to the minimum second brightness value along the second movement path s2, at least another coordinate of the center O of the alignment pattern 100 (e.g., the horizontal coordinate x1) can be determined.

[0080] S104: Determine the alignment position according to the first coordinate and the second coordinate.

[0081] For example, after obtaining the first coordinate (x2, y1) and the second coordinate (x1, y1) or (x1, y1±Δy), the alignment position (x1, y1) can be obtained based on the ordinate y1 in the first coordinate and the abscissa x1 in the second coordinate. The alignment position is the center O of the alignment pattern 100.

[0082] The embodiment of the present application can accurately determine the center coordinates of the alignment pattern based on the first coordinate corresponding to the minimum first brightness value on the first moving path and the second coordinate corresponding to the minimum second brightness value on the second moving path, thereby achieving precise alignment of the probe and the alignment pattern and improving the accuracy of the alignment.

[0083] Figure 8 Another flow chart of the method for aligning a display panel provided in an embodiment of the present application. Figure 8As shown, according to some embodiments of the present application, optionally, in S102, multiple first brightness values at different positions on the first moving path along the first direction are collected to obtain the first coordinate corresponding to the minimum first brightness value on the first moving path, which can specifically include the following steps S801 and S802.

[0084] S801: Determine whether a first brightness value corresponding to the i-th position on the first moving path is greater than a first brightness value corresponding to the i-1-th position on the first moving path, where the i-1-th position is the position immediately before (or preceding) the i-th position, and i is a positive integer greater than 1.

[0085] S802: When the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, determine the coordinates of the i-1-th position as the first coordinates.

[0086] It should be noted that the i-th position is any position on the first moving path. That is, every time the center of the probe moves to a position, the position can be used as the i-th position and the above steps S801 and S802 can be performed.

[0087] Combine Figure 6 As shown, the closer the center O' of the probe 500 is to the center O of the alignment pattern 100, the larger the overlapping area between the probe 500 and the alignment pattern 100. Therefore, the closer the probe 500 is to the center O of the alignment pattern 100, the smaller the brightness value collected by the probe 500. Therefore, when the brightness value of the current position collected by the probe 500 is greater than the brightness value of the previous position, it means that the center O' of the probe 500 has moved from the position closest to the center O of the alignment pattern 100 to a position away from the center O of the alignment pattern 100, that is, the position before the current position is closest to the center O of the alignment pattern 100 (such as coinciding with the center O of the alignment pattern 100). In this way, based on the inflection point where the brightness value collected by the probe changes from small to large, the first coordinate corresponding to the minimum first brightness value on the first movement path can be accurately determined, and then the center coordinate of the alignment pattern can be accurately determined.

[0088] Similarly, if Figure 9 As shown, according to some embodiments of the present application, optionally, in S103, multiple second brightness values at different positions on the second moving path along the second direction are collected to obtain the second coordinate corresponding to the minimum second brightness value on the second moving path, which can specifically include the following steps S901 and S902.

[0089] S901: Determine whether a second brightness value corresponding to the j-th position on the second moving path is greater than a second brightness value corresponding to the j-1-th position on the second moving path, where the j-1-th position is the position immediately before (or preceding) the j-th position, and j is a positive integer greater than 1.

[0090] S902: When the second brightness value corresponding to the j-th position is greater than the second brightness value corresponding to the j-1-th position, determine the coordinates of the j-1-th position as the second coordinates.

[0091] It should be noted that the jth position is any position on the second moving path. That is, every time the center of the probe moves to a position, the position can be used as the jth position and the above steps S901 and S902 can be performed.

[0092] Combine Figure 7 As shown, the closer the center O' of the probe 500 is to the center O of the alignment pattern 100, the larger the overlapping area between the probe 500 and the alignment pattern 100. Therefore, the brightness value collected by the probe 500 at a position closer to the center O of the alignment pattern 100 is smaller. Therefore, when the brightness value of the current position collected by the probe 500 is greater than the brightness value of the previous position, it means that the center O' of the probe 500 has moved from the position closest to the center O of the alignment pattern 100 to a position away from the center O of the alignment pattern 100, that is, the position before the current position is closest to the center O of the alignment pattern 100 (such as coinciding with the center O of the alignment pattern 100). In this way, based on the inflection point where the brightness value collected by the probe changes from small to large, the second coordinate corresponding to the minimum first brightness value on the second movement path can be accurately determined, and then combined with the first coordinate, the center coordinate of the alignment pattern can be accurately determined.

[0093] Figure 10 This is another flow chart of the method for aligning a display panel provided in an embodiment of the present application. Figure 10 As shown, according to some embodiments of the present application, optionally, in S802, when the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, before determining the coordinates of the i-1-th position as the first coordinates, the display panel alignment method may further include the following steps:

[0094] S1001: When the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, determine whether the first brightness values corresponding to the i+1-th position to the i+n-th position on the first moving path are all greater than the first brightness value corresponding to the i-1-th position on the first moving path. The i+1-th position is the position after the i-th position, the i+n-th position is the n positions after the i-th position, and n is a positive integer. For example, n may be equal to or greater than 1.

[0095] Accordingly, S802 may specifically include the following steps: when the first brightness values corresponding to the i+1th position to the i+nth position are all greater than the first brightness value corresponding to the i-1th position, determining the coordinate of the i-1th position as the first coordinate.

[0096] In this way, when the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, verification is performed through the first brightness values corresponding to the i+1-th position to the i+n-th position, that is, the first brightness value corresponding to the i-1-th position is verified through the first brightness values of at least two consecutive positions, which can improve the accuracy of the determined first coordinate, and then improve the accuracy of the center coordinate of the final determined alignment pattern, effectively avoiding misjudgment.

[0097] Similarly, according to some embodiments of the present application, optionally, in S902, when the second brightness value corresponding to the j-th position is greater than the second brightness value corresponding to the j-1-th position, before determining the coordinates of the j-1-th position as the second coordinates, the display panel alignment method may further include the following steps:

[0098] If the second brightness value corresponding to the jth position is greater than the second brightness value corresponding to the j-1th position, determine whether the second brightness values corresponding to the j+1th position to the j+nth position on the second movement path are all greater than the second brightness value corresponding to the j-1th position on the second movement path. Wherein, the j+1th position is the position after the jth position, the j+nth position is the nth position after the jth position, and n is a positive integer. For example, n can be equal to 1 or 1.

[0099] Accordingly, S902 may specifically include the following steps: when the second brightness values corresponding to the j+1th position to the j+nth position are all greater than the second brightness value corresponding to the j-1th position, determining the coordinate of the j-1th position as the second coordinate.

[0100] In this way, when the second brightness value corresponding to the j-th position is greater than the second brightness value corresponding to the j-1-th position, verification is performed through the second brightness values corresponding to the j+1-th position to the j+n-th position, that is, the second brightness value corresponding to the j-1-th position is verified through the second brightness values of at least two consecutive positions, which can improve the accuracy of the determined second coordinates, and then improve the accuracy of the center coordinates of the final determined alignment pattern, effectively avoiding misjudgment.

[0101] Figure 11 This is another flow chart of the method for aligning a display panel provided in an embodiment of the present application. Figure 11 As shown, according to some embodiments of the present application, optionally, after determining the alignment position based on the first coordinate and the second coordinate in S104, the display panel alignment method may further include the following steps: S105, controlling the probe to move to the alignment position. For example, controlling the center of the probe to move to the center of the alignment pattern, thereby achieving alignment.

[0102] Figure 12 This is another flow chart of the method for aligning a display panel provided in an embodiment of the present application. Figure 12 As shown, Figure 11 Different from the illustrated embodiment, according to other embodiments of the present application, the probe can optionally be aligned in steps while determining the first coordinate and the second coordinate.

[0103] Specifically, after determining the coordinates of the (i-1)th position as the first coordinates and before controlling the probe to move along the second direction in S103, the display panel alignment method may further include the following steps:

[0104] S121. Control the probe to return to the i-1th position.

[0105] As previously described, the position corresponding to the minimum first brightness value on the first movement path is the i-1th position, and the coordinates of the i-1th position are the first coordinates. Since the probe has already moved to the i-th position, the probe can be controlled to return to the i-1th position, for example, so that the center O' of the probe is located on the line y=y1, that is, the vertical coordinate of the center O' of the probe is consistent with the vertical coordinate of the center O of the alignment pattern 100.

[0106] Accordingly, after obtaining the second coordinate corresponding to the minimum second brightness value on the second moving path, the alignment method of the display panel may further include the following steps:

[0107] S122. Control the probe to return to the j-1th position.

[0108] As previously described, the position corresponding to the minimum second brightness value on the second movement path is the j-1th position, and the coordinates of the j-1th position are the second coordinates. Since the probe has already moved to the j-th position, the probe can be controlled to return to the j-1th position. In S121, since the center O' of the probe has been moved to the line y = y1, the coordinates of the j-1th position are the coordinates (x1, y1) of the center O of the alignment pattern 100. Therefore, by moving the center of the probe to the j-1th position, the center O' of the probe is aligned with the center O of the alignment pattern 100.

[0109] In this way, while determining the first coordinate and the second coordinate, the probe is aligned step by step on the other hand, which can shorten the alignment time of the probe and improve the speed of the alignment process.

[0110] Figure 13 This is another flow chart of the method for aligning a display panel provided in an embodiment of the present application. Figure 13 As shown, according to some embodiments of the present application, optionally, the display panel alignment method provided in the embodiments of the present application may further include the following steps S131 to S133.

[0111] S131 , controlling the probe to move in the reverse direction along the first direction, and collecting a plurality of third brightness values at different positions on the first reverse movement path, where the first reverse movement path is a path moving in the reverse direction along the first direction.

[0112] During reverse movement along the first direction, the probe 500 can collect multiple brightness values at different locations along the first reverse movement path s1'. For ease of distinction, the brightness values collected by the probe 500 along the first reverse movement path s1' are referred to herein as third brightness values. For example, each time the probe 500 moves a certain distance along the first reverse movement path s1', it collects a brightness value and the coordinates of the center of the probe 500, thereby obtaining multiple third brightness values at different locations along the first reverse movement path s1'.

[0113] S132: Determine whether the third brightness value corresponding to the p-th position on the first reverse moving path is greater than the third brightness value corresponding to the p-1-th position on the first reverse moving path, where the p-1-th position is the position immediately preceding the p-th position, and p is a positive integer greater than 1.

[0114] S133. When the third brightness value corresponding to the p-th position is greater than the third brightness value corresponding to the p-1-th position, determine whether the p-1-th position is the same as the i-1-th position.

[0115] It should be noted that, in theory, the p-1th position and the i-1th position should be the same, but in practice there may be a certain deviation between the p-1th position and the i-1th position.

[0116] Correspondingly, S802, when the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, the coordinates of the i-1-th position are determined as the first coordinates, which may specifically include the following steps S134 and S135.

[0117] S134. When the p-1th position is the same as the i-1th position, determine the coordinate of the i-1th position as the first coordinate.

[0118] S135. When the p-1th position is different from the i-1th position, determine the average value of the coordinates of the p-1th position and the i-1th position as the first coordinate.

[0119] In this way, by controlling the probe to move in the opposite direction along the first direction to obtain the p-1th position, and using the p-1th position to calibrate and verify the i-1th position, the accuracy of the determined first coordinate can be improved, thereby improving the accuracy of the center coordinate of the final determined alignment pattern, and effectively avoiding misjudgment.

[0120] According to some embodiments of the present application, optionally, in S131 , when a brightness increase inflection point is found, movement may be immediately performed in the reverse direction along the first direction. Figure 14 This is another operation diagram of the display panel alignment method provided in the embodiment of the present application. Figure 14 As shown, taking the first direction as the column direction Y of the display panel 10 as an example, when the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, the probe 500 can be controlled to move in the opposite direction of the first direction (i.e., the i-th position points in the direction of the i-1-th position, with the dotted arrow indicating the direction). In other words, upon finding the inflection point of increasing brightness, the probe 500 moves in the opposite direction of the first direction.

[0121] In this way, when the brightness increase inflection point is found, the device immediately moves in the reverse direction along the first direction instead of continuing to move in the forward direction along the first direction. Therefore, the time used in the alignment process can be reduced and the alignment efficiency can be improved.

[0122] According to some embodiments of the present application, optionally, in S131, the probe may move in the opposite direction along the first direction when it reaches a preset end point. For example, in some examples, the coordinates of the end point may be preset as (xm, ym), and when the probe reaches the end point (xm, ym), the probe is controlled to move in the opposite direction along the first direction. For example, in other examples, a first distance between the starting position and the end point may be preset, and when the probe moves a first distance from the starting position along the first direction, it is considered that the probe has reached the preset end point, and the probe is controlled to move in the opposite direction along the first direction. In this way, the brightness values between multiple adjacent positions between the starting position and the end point can be compared to ensure the accuracy of the determined center of the alignment pattern, thereby ensuring the accuracy of the alignment.

[0123] Figure 15 This is another flow chart of the method for aligning a display panel provided in an embodiment of the present application. Figure 15 As shown, according to some embodiments of the present application, optionally, the display panel alignment method provided in the embodiments of the present application may further include the following steps S151 to S153.

[0124] S151 , controlling the probe to move in the reverse direction along the second direction, and collecting a plurality of fourth brightness values at different positions on a second reverse movement path, where the second reverse movement path is a path moving in the reverse direction along the second direction.

[0125] Similarly, in S151, for example, upon detecting the brightness increase inflection point, the probe may immediately move in the opposite direction along the second direction. Alternatively, for example, upon reaching a preset end point, the probe may move in the opposite direction along the second direction. This embodiment of the present application is not limited to this. The specific implementation process is described above and will not be repeated here.

[0126] Figure 16This is another operation diagram of the display panel alignment method provided in the embodiment of the present application. Figure 16 As shown, taking the second direction as the row direction X of the display panel 10 as an example, when the second brightness value corresponding to the j-th position is greater than the second brightness value corresponding to the j-1-th position, the probe 500 can be controlled to move in the opposite direction of the second direction (that is, the j-th position points to the direction of the j-1-th position, and the dotted arrow indicates the direction).

[0127] During reverse movement along the second direction, the probe 500 can collect multiple brightness values at different locations along the second reverse movement path s2'. For ease of distinction, the brightness values collected by the probe 500 along the second reverse movement path s2' are referred to herein as fourth brightness values. For example, each time the probe 500 moves a certain distance along the second reverse movement path s2', it collects a brightness value and the coordinates of the center of the probe 500, thereby obtaining multiple fourth brightness values at different locations along the second reverse movement path s2'.

[0128] S152: Determine whether the fourth brightness value corresponding to the qth position on the second reverse moving path is greater than the fourth brightness value corresponding to the q-1th position on the second reverse moving path, where the q-1th position is the position before the qth position, and q is a positive integer greater than 1.

[0129] S153. When the fourth brightness value corresponding to the qth position is greater than the fourth brightness value corresponding to the q-1th position, determine whether the q-1th position is the same as the j-1th position.

[0130] It should be noted that, in theory, the q-1th position and the j-1th position should be the same, but in practice there may be a certain deviation between the q-1th position and the j-1th position.

[0131] Correspondingly, S902, when the second brightness value corresponding to the j-th position is greater than the second brightness value corresponding to the j-1-th position, the coordinates of the j-1-th position are determined as the second coordinates, which may specifically include the following steps S154 and S155.

[0132] S154. When the q-1th position is the same as the j-1th position, determine the coordinate of the j-1th position as the second coordinate.

[0133] S155. When the q-1th position is different from the j-1th position, an average value of the coordinates of the q-1th position and the coordinates of the j-1th position is determined as the second coordinate.

[0134] In this way, when the second brightness value corresponding to the j-th position is greater than the second brightness value corresponding to the j-1-th position, the q-1-th position is obtained by controlling the probe to move in the opposite direction along the second direction, and the j-1-th position is calibrated and verified using the q-1-th position. The accuracy of the determined second coordinate can be improved, thereby improving the accuracy of the center coordinate of the final determined alignment pattern, and effectively avoiding misjudgment.

[0135] Figure 17 This is another flow chart of the method for aligning a display panel provided in an embodiment of the present application. Figure 17 As shown, according to some embodiments of the present application, optionally, S101, controlling the probe to move from a starting position along a first direction, may specifically include the following steps:

[0136] S171. Determine a magnitude relationship between a first brightness value corresponding to an x-th position on the first moving path and a first brightness value corresponding to an x-1-th position on the first moving path, where the x-1-th position is a position preceding the x-th position, and x is a positive integer.

[0137] like Figure 18 As shown, when the probe 500 has not yet overlapped with the alignment pattern 100, such as when the probe 500 is in area a, the brightness values collected by the probe 500 at different positions are almost unchanged. That is, when the first brightness value corresponding to the x-th position is equal to the first brightness value corresponding to the x-1-th position, it means that the probe has not yet overlapped with the alignment pattern, that is, the distance between the probe 500 and the center of the alignment pattern 100 is still relatively far. When the probe 500 begins to overlap with the alignment pattern 100, the brightness value collected by the probe 500 will decrease. That is, when the first brightness value corresponding to the x-th position is less than the first brightness value corresponding to the x-1-th position, it means that the probe 500 begins to overlap with the alignment pattern 100, that is, the probe has approached the center of the alignment pattern.

[0138] S172. When the first brightness value corresponding to the x-th position is equal to the first brightness value corresponding to the x-1-th position, control the probe to move along the first direction with the first step value and / or the first moving speed until the first brightness value corresponding to the x-th position is less than the first brightness value corresponding to the x-1-th position.

[0139] S173. When the first brightness value corresponding to the x-th position is less than the first brightness value corresponding to the x-1-th position, control the probe to move along the first direction at a second step value and / or a second moving speed until the first coordinate corresponding to the minimum first brightness value on the first moving path is obtained.

[0140] The first step value is greater than the second step value, and the first moving speed is greater than the second moving speed.

[0141] In this way, on the one hand, when the probe is far away from the center of the alignment pattern, controlling the probe movement with a larger first step value and / or a first moving speed can increase the alignment speed and shorten the alignment time; on the other hand, when the probe is close to the center of the alignment pattern, controlling the probe movement with a smaller second step value and / or a second moving speed can improve the alignment accuracy and accurately find the center of the alignment pattern.

[0142] In some specific examples, the second step value may optionally decrease with time, and / or the second movement speed may decrease with time. That is, the closer the center of the probe is to the center of the alignment pattern, the smaller the step value for controlling the movement of the probe and / or the slower the movement speed of the probe.

[0143] In this way, as the center of the probe is closer to the center of the alignment pattern, the step value for controlling the movement of the probe is smaller and / or the movement speed of the probe is slower, the accuracy of finding the center of the alignment pattern can be further improved, effectively avoiding the center of the probe jumping over / over the center of the alignment pattern due to a large step value or too fast movement speed.

[0144] It should be noted that, in some other examples of the present application, the second step value may also remain unchanged as time increases, and / or the second moving speed may also remain unchanged as time increases.

[0145] Figure 19 This is another flow chart of the method for aligning a display panel provided in an embodiment of the present application. Figure 19 As shown, Figure 17 Similar to the illustrated embodiment, according to some embodiments of the present application, optionally, S102 , controlling the probe to move along the second direction according to the first coordinate, may specifically include the following steps S191 to S193 .

[0146] S191. Determine a magnitude relationship between a second brightness value corresponding to the yth position on the second moving path and a second brightness value corresponding to the y-1th position on the second moving path, where the y-1th position is the position immediately preceding the yth position, and y is a positive integer.

[0147] S192. When the second brightness value corresponding to the y-th position is equal to the second brightness value corresponding to the y-1-th position, control the probe to move along the second direction at a third step value and / or a third moving speed until the second brightness value corresponding to the y-th position is less than the second brightness value corresponding to the y-1-th position.

[0148] S193. When the second brightness value corresponding to the y-th position is less than the second brightness value corresponding to the y-1-th position, the probe is controlled to move along the second direction at a fourth step value and / or a fourth moving speed until the second coordinate corresponding to the minimum second brightness value on the second moving path is obtained.

[0149] The third step value is greater than the fourth step value, and the third moving speed is greater than the fourth moving speed.

[0150] In this way, on the one hand, when the probe is far away from the center of the alignment pattern, controlling the probe movement with a larger third step value and / or a third moving speed can increase the alignment speed and shorten the alignment time; on the other hand, when the probe is close to the center of the alignment pattern, controlling the probe movement with a smaller fourth step value and / or a fourth moving speed can improve the alignment accuracy and accurately find the center of the alignment pattern.

[0151] In some specific examples, the fourth step value may optionally decrease over time, and / or the fourth movement speed may decrease over time. That is, the closer the center of the probe is to the center of the alignment pattern, the smaller the step value for controlling the movement of the probe and / or the slower the movement speed of the probe.

[0152] In this way, as the center of the probe is closer to the center of the alignment pattern, the step value for controlling the movement of the probe is smaller and / or the movement speed of the probe is slower, the accuracy of finding the center of the alignment pattern can be further improved, effectively avoiding the center of the probe jumping over / over the center of the alignment pattern due to a large step value or too fast movement speed.

[0153] It should be noted that, in some other examples of the present application, the fourth step value may also remain unchanged as time increases, and / or the fourth moving speed may also remain unchanged as time increases.

[0154] Figure 20 This is a schematic top view of a display panel provided in an embodiment of the present application. Figure 20 As shown, according to some embodiments of the present application, optionally, the display panel 10 may include a first display area A1 and a second display area A2, and the transmittance of the second display area A2 is greater than the transmittance of the first display area A1. That is, the first display area A1 is the main screen area described above, and the second display area A2 is the secondary screen area described above. When the probe size is larger than the size of the second display area A2, such as when a 10mm caliber probe is used, the center o of the second display area A2 can be used as the center O of the alignment pattern 100, and the alignment pattern 100 can be displayed based on the second display area A2 and the portion of the first display area A1 close to the second display area A2. Exemplarily, the alignment pattern 100 can be a circle with the same size as the probe, or a part of a circle with the same size as the probe (such as a semicircle or three-quarter circle).

[0155] Figure 21 This is another schematic top view of the display panel provided in the embodiment of the present application. Figure 21 As shown, according to some embodiments of the present application, optionally, when the probe size is less than or equal to the size of the second display area A2, such as when a 2 mm caliber probe is used, the center o of the second display area A2 can be used as the center O of the alignment pattern 100, and the alignment pattern 100 can be displayed based on the second display area A2. Exemplarily, the alignment pattern 100 can be a circle with the same size as the probe, or a portion of a circle with the same size as the probe (such as a semicircle or three-quarter circle).

[0156] In this way, the embodiment of the present application can be adapted to probes of different sizes and second display areas of different shapes / sizes, that is, it can be adapted to a variety of application scenarios.

[0157] Continue to see Figure 21 According to some embodiments of the present application, the second display area A2 may optionally include a light-transmitting area 210, and the first display area A1 may include a transition area 220 surrounding the light-transmitting area 210. Sub-pixels may be provided in both the light-transmitting area 210 and the transition area 220. The transition area 220 is provided with a driving device (such as a transistor), while the light-transmitting area 210 is not provided with a driving device. The center of the light-transmitting area 210 may coincide with the center of the second display area A2, and the transition area 220 may be provided around the light-transmitting area 210. When the size of the probe is less than or equal to the size of the light-transmitting area 210, the center o of the light-transmitting area 210 may be used as the center O of the alignment pattern 100, and the alignment pattern 100 may be displayed based on the light-transmitting area 210.

[0158] In this way, the center of the probe can be aligned with the center of the light-transmitting area, ensuring that the brightness values collected by the probe are all brightness values of the light-transmitting area, that is, the accuracy of the brightness values collected by the probe is improved, which is conducive to improving the accuracy of the subsequent gamma debugging results of the second display area.

[0159] like Figure 21 As shown, optionally, the shape of the light-transmitting area 210 can be rectangular, and the shape of the second display area A2 can also be rectangular. In other embodiments, the shape of the light-transmitting area 210 can be circular, and the shape of the second display area A2 can also be circular. Of course, the shapes of the light-transmitting area 210 and the second display area A2 can also be other shapes, and this embodiment of the application is not limited to this.

[0160] Based on the alignment method of the display panel provided in the above embodiment, accordingly, an embodiment of the present application further provides a gamma adjustment method of the display panel.

[0161] Figure 22 An operational diagram of a gamma adjustment method for a display panel provided in an embodiment of the present application. Figure 23 A flow chart of a gamma adjustment method for a display panel provided in an embodiment of the present application. Figure 22 and Figure 23 As shown, the display panel 10 includes a first display area A1 and a second display area A2. The transmittance of the second display area A2 can be greater than the transmittance of the first display area A1. That is, the first display area A1 is the main screen area mentioned above, and the second display area A2 is the auxiliary screen area mentioned above.

[0162] The gamma adjustment method for a display panel provided in an embodiment of the present application may include the following steps S221 to S223 .

[0163] S221 , controlling the probe to move to the first display area, and performing gamma adjustment on the first display area.

[0164] The first display area A1 can display a picture of a target grayscale. The target grayscale can be any preset grayscale. In S221, the probe can be controlled to move to the first display area A1 to collect the actual brightness value of the first display area A1. Then, based on the comparison result of the actual brightness value of the first display area A1 and the target brightness value corresponding to the target grayscale, at least one of the data voltage value corresponding to the red sub-pixel, the data voltage value corresponding to the green sub-pixel, and the data voltage value corresponding to the blue sub-pixel in the first display area A1 is adjusted until the difference between the actual brightness value of the first display area A1 and the target brightness value corresponding to the target grayscale is less than a preset first error threshold. Finally, the adjusted data voltage value corresponding to the red sub-pixel, the data voltage value corresponding to the green sub-pixel, and the data voltage value corresponding to the blue sub-pixel in the first display area A1 are obtained, thereby completing the gamma debugging of the first display area A1.

[0165] It should be noted that when gamma tuning the first display area A1, after completing gamma tuning for one grayscale, the first display area A1 can switch to displaying an image at another grayscale, repeating the above process to complete gamma tuning for another grayscale. Furthermore, during gamma tuning, multiple grayscales can be selected as binding points. For grayscales other than the binding points, the data voltage values corresponding to the red sub-pixels, the data voltage values corresponding to the green sub-pixels, and the data voltage values corresponding to the blue sub-pixels in the first display area A1 corresponding to the other grayscales can be obtained based on a linear interpolation algorithm.

[0166] S222: Based on the display panel alignment method provided in the above embodiment, move the probe to the alignment position, and the alignment pattern is at least partially located in the second display area.

[0167] like Figure 20As shown, when the probe size is larger than the size of the second display area A2, the center o of the second display area A2 can be used as the center O of the alignment pattern 100, and the alignment pattern 100 can be displayed based on the second display area A2 and the part of the first display area A1 close to the second display area A2. Figure 21 As shown, when the probe size is less than or equal to the size of the second display area A2, the center o of the second display area A2 can be used as the center O of the alignment pattern 100, and the alignment pattern 100 can be displayed based on the second display area A2. The alignment position is the center O of the alignment pattern 100, which is located within the second display area A2.

[0168] In S222 , based on the display panel alignment method provided in the above embodiment, the center of the probe may be moved to the center O of the alignment pattern 100 to complete the alignment.

[0169] S223: Perform gamma adjustment on the second display area.

[0170] like Figure 24 As shown, in some embodiments, when the probe size is larger than the second display area A2, the second display area A2 is controlled to display the target grayscale image, while the portion of the first display area A1 near the second display area A2 is written black. For example, the portion of the first display area A1 near the second display area A2 still displays the alignment pattern 100. This effectively prevents the probe from capturing the brightness value of the first display area A1, improves the accuracy of the captured brightness value of the second display area A2, and thus ensures the accuracy of the gamma adjustment results.

[0171] In other embodiments, when the probe size is smaller than the size of the second display area A2, the second display area A2 can be controlled to display a target grayscale image, and the portion of the first display area A1 near the second display area A2 does not need to be written black.

[0172] In S223, after alignment is completed, the actual brightness value of the first display area A2 can be collected. Then, based on the comparison result between the actual brightness value of the second display area A2 and the target brightness value corresponding to the target grayscale, at least one of the data voltage values corresponding to the red sub-pixels, the green sub-pixels, and the blue sub-pixels in the second display area A2 is adjusted until the difference between the actual brightness value of the second display area A2 and the target brightness value corresponding to the target grayscale is less than a preset first error threshold. Finally, the adjusted data voltage values corresponding to the red sub-pixels, the green sub-pixels, and the blue sub-pixels in the second display area A2 are obtained, thereby completing the gamma adjustment of the second display area A2.

[0173] It should be noted that when gamma tuning the second display area A2, after completing gamma tuning for one grayscale, the second display area A2 can switch to displaying another grayscale image, repeating the above process to complete gamma tuning for another grayscale. Furthermore, during gamma tuning, multiple grayscales can be selected as binding points. For grayscales other than the binding points, the data voltage values corresponding to the red sub-pixels, the data voltage values corresponding to the green sub-pixels, and the data voltage values corresponding to the blue sub-pixels in the second display area A2 corresponding to the other grayscales can be obtained based on a linear interpolation algorithm.

[0174] In the gamma debugging method for a display panel according to an embodiment of the present application, the display panel displays an alignment pattern with the center of the second display area as the center of the alignment pattern. Based on the first coordinate corresponding to the minimum first brightness value on the first movement path and the second coordinate corresponding to the minimum second brightness value on the second movement path, the center coordinates of the alignment pattern can be accurately determined, thereby achieving precise alignment between the probe and the second display area, improving the accuracy of the alignment between the probe and the second display area, and thereby improving the accuracy of gamma debugging for the second display area. Furthermore, during the alignment process, automatic alignment of the probe and the alignment pattern can be achieved without human intervention.

[0175] Based on the gamma adjustment method of the display panel provided in the above embodiment, accordingly, the embodiment of the present application also provides a specific implementation method of the gamma adjustment device of the display panel.

[0176] Figure 25 A structural diagram of a gamma debugging device for a display panel provided in an embodiment of the present application. The gamma debugging device for a display panel provided in an embodiment of the present application can be used to execute the gamma debugging method for a display panel provided in the above embodiment. Figure 25 As shown, the gamma debugging device 2500 for the display panel provided in the embodiment of the present application may include a workbench 251, a first conveying part 252, a second conveying part 253, a clamping part 254, a controller (not shown in the figure) and a probe 500. Among them, the workbench 251 is used to carry the display panel 10. The first conveying part 252 is located on at least one side of the workbench 251 and extends along a first direction (such as a column direction Y). Exemplarily, the first conveying part 252 is located on two opposite sides of the workbench 251 along a second direction (such as a row direction X). The second conveying part 253 extends along the second direction and is suspended above the workbench 251. The second conveying part 253 is connected to the first conveying part 252. The second conveying part 253 can move relative to the first conveying part 252 along the first direction. When the first conveying part 252 is working, it drives the second conveying part 253 to move along the first direction, that is, Figure 25 The clamping portion 254 is connected to the second conveying portion 253, and the clamping portion 254 can move relative to the second conveying portion 253 along the second direction. When the second conveying portion 253 is working, the clamping portion 254 is driven to move along the second direction. Figure 25 The probe 500 is fixedly mounted on the clamping portion 254, that is, the clamping portion 254 clamps the probe 500. The controller is electrically connected to the first conveying portion 252, the second conveying portion 253 and the probe.

[0177] Specifically, the probe 500 can be placed in the clamping portion 254 at an angle perpendicular to the plane where the display panel is located, and the clamping portion 254 can clamp the probe 500. Then, the controller can control the first conveying portion 252 and the second conveying portion 253 so that the clamping portion 254 and the probe 500 can move up, down, left and right. During the movement of the probe 500, the probe 500 can be controlled to collect the brightness values of different positions of the display panel 10 and collect the coordinate values of the probe 500. Then, the alignment of the display panel is completed by the alignment method of the display panel provided in the above embodiment. Alternatively, the gamma debugging method of the display panel is completed by the gamma debugging method of the display panel provided in the above embodiment.

[0178] In the gamma debugging device for a display panel according to an embodiment of the present application, the display panel displays an alignment pattern with the center of the second display area as the center of the alignment pattern. Based on the first coordinate corresponding to the minimum first brightness value on the first movement path and the second coordinate corresponding to the minimum second brightness value on the second movement path, the center coordinates of the alignment pattern can be accurately determined, achieving precise alignment between the probe and the second display area, improving the accuracy of the alignment between the probe and the second display area, and thereby improving the accuracy of gamma debugging for the second display area. Furthermore, during the alignment process, automatic alignment of the probe center and the alignment pattern can be achieved without human intervention.

[0179] Figure 26 Another structural diagram of the gamma adjustment device for the display panel provided in the embodiment of the present application. Figure 26 As shown, according to some embodiments of the present application, optionally, a first groove 261 and a second groove 262 are formed on the workbench 251. The first groove 261 is used to place the display panel 10, and the second groove 262 is located on one side of the first groove 261 along the first direction. The gamma debugging device 2500 for the display panel provided in the embodiment of the present application may also include a light-emitting portion 263, which is located in the second groove 262. The light-emitting portion 263 is strip-shaped and extends along the second direction. Exemplarily, the light-emitting portion 263 includes but is not limited to a lamp, such as an LED lamp.

[0180] For ease of understanding, the following Figure 26 The gamma adjustment device of the display panel and the gamma adjustment method of the display panel provided by the above embodiments are described.

[0181] Step 1: Control the probe to move to the first display area and perform gamma adjustment on the first display area.

[0182] Step 2: The display panel displays an alignment pattern with the center of the second display area as the center of the alignment pattern.

[0183] Step 3: The light emitting unit emits light and controls the probe to move from the starting position along the first direction, and collects multiple first brightness values at different positions on the first moving path along the first direction to obtain the first coordinate corresponding to the minimum first brightness value on the first moving path.

[0184] Step 4: Control the probe to move along the second direction, and collect multiple second brightness values at different positions on a second moving path along the second direction, to obtain a second coordinate corresponding to the minimum second brightness value on the second moving path.

[0185] Step 5: Control the probe to move to the alignment position determined based on the first coordinate and the second coordinate, turn off the light emitting portion, and display the target grayscale image in the second display area. Perform gamma adjustment on the second display area.

[0186] Step 6: After completing the gamma adjustment of the second display area, control the probe to return to the starting position.

[0187] In this way, by opening a first groove to place the display panel, the display panel can be positioned to ensure the accuracy of the alignment; by opening a second groove on the side of the first groove close to the second display area, the second groove can provide sufficient moving space for the probe to prevent the probe from colliding with the edge of the first groove during alignment; by arranging a light-emitting part in the second groove, it can be ensured that even if a part of the probe moves to the second groove, the brightness value collected by the probe will change from small to large, ensuring the smooth progress of the alignment.

[0188] According to some embodiments of the present application, optionally, the first groove 261 and the second groove 262 are in communication.

[0189] In this way, the first groove and the second groove can be integrally formed through the same process, which is beneficial to simplifying the production process and reducing the production cost of the gamma adjustment device for the display panel.

[0190] Continue to see Figure 26 According to some embodiments of the present application, the workbench 251 may optionally further be provided with a third groove 264 and a fourth groove 265. The third groove 264 and the fourth groove 265 may facilitate the commissioning personnel to place the display panel 10 in the first groove 261 or to facilitate the commissioning personnel to remove the display panel 10 from the first groove 261.

[0191] According to some embodiments of the present application, the first conveying unit 252 may optionally include, but is not limited to, a combination of a motor (e.g., a stepping motor) and a conveying mechanism, or a combination of a guide rail and a movable component (e.g., a trolley). The second conveying unit 253 may include, but is not limited to, a combination of a motor (e.g., a stepping motor) and a conveying mechanism, or a combination of a guide rail and a movable component (e.g., a trolley).

[0192] Based on the display panel alignment method or display panel gamma adjustment method provided in the above embodiments, the present application also provides a specific implementation of the electronic device. Please refer to the following embodiments.

[0193] Figure 27 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application is shown.

[0194] The electronic device may include a processor 2701 and a memory 2702 storing computer program instructions.

[0195] Specifically, the processor 2701 may include a central processing unit (CPU) or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0196] Memory 2702 may include a large capacity memory for data or instructions. By way of example and not limitation, memory 2702 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In one example, memory 2702 may include removable or non-removable (or fixed) media, or memory 2702 may be a non-volatile solid-state memory. Memory 2702 may be inside or outside the integrated gateway disaster recovery device.

[0197] In one example, the memory 2702 may be a read-only memory (ROM). In one example, 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 a flash memory, or a combination of two or more of these.

[0198] The memory 2702 may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical or other physical / tangible memory storage devices. Thus, generally, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to an aspect of the present application.

[0199] The processor 2701 reads and executes the computer program instructions stored in the memory 2702 to implement the method / steps in the above-mentioned display panel alignment method or the display panel gamma debugging method, and achieves the corresponding technical effects achieved by executing the method / steps of the above-mentioned display panel alignment method or the display panel gamma debugging method. For the sake of brevity, they are not repeated here.

[0200] In one example, the electronic device may further include a communication interface 2703 and a bus 2710. Figure 27 As shown, the processor 2701, the memory 2702, and the communication interface 2703 are connected via a bus 2710 and communicate with each other.

[0201] The communication interface 2703 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0202] Bus 2710 includes hardware, software or both, couples the parts of electronic equipment to each other.For example, but not limitation, bus may include Accelerated Graphics Port (AGP) or other graphics buses, Enhanced Industry Standard Architecture (EISA) bus, Front Side Bus (FSB), Hyper Transport (HT) interconnection, Industry Standard Architecture (ISA) bus, InfiniBand interconnection, Low Pin Count (LPC) bus, memory bus, Micro Channel Architecture (MCA) bus, Peripheral Component Interconnect (PCI) bus, PCI-Express (PCI-X) bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 2710 may include one or more buses. Although the present application embodiment describes and shows specific bus, the application considers any suitable bus or interconnection.

[0203] In addition, in combination with the alignment method of the display panel or the gamma debugging method of the display panel in the above-mentioned embodiment, the embodiment of the present application may provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the alignment methods of the display panel or the gamma debugging method of the display panel in the above-mentioned embodiment is implemented. Examples of computer-readable storage media include non-transitory computer-readable storage media, such as electronic circuits, semiconductor memory devices, ROM, random access memory, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, and hard disks.

[0204] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link via a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0205] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0206] Aspects of the present application have been described above with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed via the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. This 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 box in the block diagram and / or the flowchart and the combination of the boxes in the block diagram and / or the flowchart can also be implemented by the dedicated hardware that performs the specified function or action, or can be implemented by the combination of dedicated hardware and computer instructions.

[0207] The above description is only a specific embodiment of the present application. Those skilled in the art will clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the scope of protection of the present application.

Claims

1. A method for aligning a display panel, characterized in that: include: Controlling a predetermined area of the display panel to display an alignment pattern adapted to the probe size, wherein the brightness value of the alignment pattern is smaller than the brightness values of other areas surrounding the predetermined area; Controlling the probe to move from a starting position along a first direction, and collecting a plurality of first brightness values at different positions on a first moving path along the first direction, to obtain a first coordinate corresponding to the minimum first brightness value on the first moving path; controlling the probe to move along a second direction, and collecting a plurality of second brightness values at different positions on a second movement path along the second direction, to obtain a second coordinate corresponding to the minimum second brightness value on the second movement path, where the second direction intersects the first direction; An alignment position is determined according to the first coordinate and the second coordinate.

2. The alignment method according to claim 1, wherein: The collecting a plurality of first brightness values at different positions on the first moving path along the first direction to obtain a first coordinate corresponding to the minimum first brightness value on the first moving path specifically includes: Determine whether a first brightness value corresponding to an i-th position on the first moving path is greater than a first brightness value corresponding to an i-1-th position on the first moving path, where the i-1-th position is a position preceding the i-th position, and i is a positive integer; When the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, determining the coordinates of the i-1-th position as the first coordinates; The collecting a plurality of second brightness values at different positions on the second moving path along the second direction to obtain a second coordinate corresponding to the minimum second brightness value on the second moving path specifically includes: Determine whether a second brightness value corresponding to the j-th position on the second moving path is greater than a second brightness value corresponding to the j-1-th position on the second moving path, where the j-1-th position is a position before the j-th position, and j is a positive integer; When the second brightness value corresponding to the j-th position is greater than the second brightness value corresponding to the j-1-th position, the coordinates of the j-1-th position are determined as the second coordinates.

3. The alignment method according to claim 2, wherein: Before determining the coordinates of the (i-1)th position as the first coordinates, the alignment method further includes: If the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, determine whether the first brightness values corresponding to the i+1-th position to the i+n-th position on the first moving path are all greater than the first brightness value corresponding to the i-1-th position on the first moving path, where the i+1-th position is the position after the i-th position, the i+n-th position is the n positions after the i-th position, and n is a positive integer; Determining the coordinates of the i-1th position as the first coordinates specifically includes: When the first brightness values corresponding to the i+1th position to the i+nth position are all greater than the first brightness value corresponding to the i-1th position, the coordinates of the i-1th position are determined as the first coordinates.

4. The alignment method according to claim 2 or 3, characterized in that: Before controlling the probe to move along the second direction, the alignment method further includes: Controlling the probe to return to the (i-1)th position; After obtaining the second coordinate corresponding to the minimum second brightness value on the second moving path, the method further includes: Control the probe to return to the j-1th position.

5. The alignment method according to claim 2, wherein: The alignment method further comprises: Controlling the probe to move in the reverse direction along the first direction, and collecting a plurality of third brightness values at different positions along a first reverse movement path, where the first reverse movement path is a path moving in the reverse direction along the first direction; Determine whether a third brightness value corresponding to a p-th position on the first reverse moving path is greater than a third brightness value corresponding to a p-1-th position on the first reverse moving path, where the p-1-th position is a position before the p-th position, and p is a positive integer; When the third brightness value corresponding to the p-th position is greater than the third brightness value corresponding to the p-1-th position, determining whether the p-1-th position is the same as the i-1-th position; When the first brightness value corresponding to the i-th position is greater than the first brightness value corresponding to the i-1-th position, determining the coordinates of the i-1-th position as the first coordinates specifically includes: When the p-1th position is the same as the i-1th position, determining the coordinates of the i-1th position as the first coordinates; In a case where the p-1th position is different from the i-1th position, an average value of the coordinates of the p-1th position and the coordinates of the i-1th position is determined as the first coordinate.

6. The alignment method according to claim 1, wherein: The controlling the probe to move from a starting position along a first direction specifically includes: Determine a magnitude relationship between a first brightness value corresponding to an x-th position on the first moving path and a first brightness value corresponding to an x-1-th position on the first moving path, where the x-1-th position is a position preceding the x-th position, and x is a positive integer; When the first brightness value corresponding to the x-th position is equal to the first brightness value corresponding to the x-1-th position, controlling the probe to move along the first direction at a first step value and / or a first moving speed until the first brightness value corresponding to the x-th position is less than the first brightness value corresponding to the x-1-th position; When the first brightness value corresponding to the x-th position is less than the first brightness value corresponding to the x-1-th position, the probe is controlled to move along the first direction with a second step value and / or a second moving speed until the first coordinate corresponding to the minimum first brightness value on the first moving path is obtained; wherein the first step value is greater than the second step value, and the first moving speed is greater than the second moving speed.

7. The alignment method according to claim 1, wherein: The display panel includes a first display area and a second display area, wherein the light transmittance of the second display area is greater than the light transmittance of the first display area; When the size of the probe is larger than the size of the second display area, the center of the second display area is used as the center of the alignment pattern, and the alignment pattern is displayed based on the second display area and a portion of the first display area close to the second display area; When the size of the probe is smaller than or equal to the size of the second display area, the center of the second display area is used as the center of the alignment pattern, and the alignment pattern is displayed based on the second display area.

8. The alignment method according to claim 7, characterized in that: The second display area includes a light-transmitting area, the first display area includes a transition area surrounding the light-transmitting area, the transition area is provided with a driving device, and the light-transmitting area is not provided with the driving device; when the size of the probe is less than or equal to the size of the light-transmitting area, the center of the light-transmitting area is used as the center of the alignment pattern, and the alignment pattern is displayed based on the light-transmitting area.

9. A gamma adjustment method for a display panel, wherein the display panel comprises a first display area and a second display area, wherein: include: Controlling the probe to move to the first display area and performing gamma adjustment on the first display area; Based on the display panel alignment method according to any one of claims 1 to 8, the probe is moved to the alignment position, and the alignment pattern is at least partially located in the second display area; Gamma adjustment is performed on the second display area.

10. A gamma adjustment device for a display panel, used to execute the gamma adjustment method for a display panel according to claim 9, characterized in that: include: a workbench, used for carrying the display panel; a first conveying portion, located on at least one side of the workbench and extending along a first direction; a second conveying portion, the second conveying portion extending along a second direction and suspended above the workbench, the second conveying portion being connected to the first conveying portion and movable relative to the first conveying portion along the first direction; a clamping portion connected to the second conveying portion, and the clamping portion is movable relative to the second conveying portion along a second direction; A probe is fixedly mounted on the clamping portion; The controller is connected to the first transmission part, the second transmission part and the probe.

11. The device according to claim 10, characterized in that The workbench is provided with a first groove and a second groove, the first groove is used to place the display panel, and the second groove is located on one side of the first groove along the first direction; The gamma debugging device further includes a light emitting portion, which is located in the second groove and is strip-shaped and extends along the second direction.

12. The device according to claim 11, characterized in that The first groove is communicated with the second groove.

Images