Method and equipment for recovering panel protective film and storage medium

Abstract

The invention discloses a panel protection film recovery method and device and a storage medium. The method comprises the steps that it is determined that a to-be-repaired display panel is loaded on a repair device; emitting a laser signal to a pixel point in a first display area of the display panel to repair the pixel point; the first display area is an area where the protective film is lifted; if the pixel points are repaired, acquiring first image data of the display panel above the display panel; according to the first image data, a posture matched with the first display area is set for the restorer in a second display area of the display panel; the second display area is an area where the protective film is not lifted; controlling the restorer to move to the surface of the unlifted protective film according to the posture; and controlling the restorer to move from the surface of the unlifted protective film to the first display area so as to enable the lifted protective film to cover the surface of the first display area again. A standardized process is formulated for restoring the protective film on the display panel, and the efficiency of restoring the protective film is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of panel production, and in particular to a method, equipment and storage medium for restoring a panel protective film. Background Art

[0002] During the production process of display panels such as LCD (Liquid Crystal Display) and OLED (Organic Light-Emitting Diode), due to process complexity and material properties, certain pixels on the display panels will produce different types of point defects.

[0003] When a pixel defect occurs, a laser is usually used to repair the pixel. Since the surface of the display panel is covered with a protective film, before the repair begins, the technical engineer uses a tool to lift the protective film in the area where the pixel defect is located to prevent the protective film from interfering with the laser signal and allowing the laser signal to penetrate into the interior of the display panel. When the repair is completed, the technical engineer uses a tool to press the lifted protective film and restore the lifted protective film to the surface of the display panel.

[0004] The operation of pressing the protective film by the technical engineer is a manual operation, which mainly relies on the experience of the technical engineer. The effects of pressing the protective film by different technical engineers vary greatly and mistakes are prone to occur. For example, some technical engineers will damage the protective film when pressing it, and some technical engineers take a long time to repeatedly press the protective film, etc., resulting in low efficiency in restoring the protective film on the display panel. Summary of the invention

[0005] In view of this, the present invention provides a panel protective film recovery method, device and storage medium, so as to improve the efficiency of recovering the protective film on the display panel.

[0006] A first aspect of the present invention provides a method for restoring a panel protective film, which is applied to a repair device, wherein the repair device has a restorer, and the method comprises:

[0007] Determining that the repair device is loaded with a display panel to be repaired; a protective film is covered on the surface of the display panel;

[0008] Emitting a laser signal to a pixel point in a first display area of ​​the display panel to repair the pixel point; the first display area is an area where the protective film is lifted;

[0009] If the pixel point is repaired, collecting first image data of the display panel above the display panel;

[0010] According to the first image data, the restorer is configured with a posture adapted to the first display area in a second display area of ​​the display panel; the second display area is an area where the protective film is not lifted;

[0011] Controlling the restorer to move to the surface of the protective film that has not been lifted according to the posture;

[0012] The restorer is controlled to move from the surface of the protective film that has not been lifted toward the first display area, so that the lifted protective film is re-covered on the surface of the first display area.

[0013] A second aspect of the present invention provides a panel protective film recovery device, which is applied to a repair device, wherein the repair device has a restorer, and the device comprises:

[0014] A display panel loading module, used to determine that the repair device loads a display panel to be repaired; a protective film is covered on the surface of the display panel;

[0015] A pixel repair module, used for emitting laser signals to pixels in a first display area of ​​the display panel to repair the pixels; the first display area is an area where the protective film is lifted;

[0016] an initial image acquisition module, configured to acquire first image data of the display panel above the display panel if the pixel point has been repaired;

[0017] A posture setting module, used for setting a posture of the restorer adapted to the first display area in a second display area of ​​the display panel according to the first image data; the second display area is an area where the protective film is not lifted;

[0018] A first movement control module, used for controlling the restorer to move to the surface of the protective film that has not been lifted according to the posture;

[0019] The second movement control module is used to control the restorer to move from the surface of the protective film that has not been lifted to the first display area, so as to cover the lifted protective film on the surface of the first display area again.

[0020] A third aspect of the present invention provides a repair device, the repair device comprising:

[0021] at least one processor; and

[0022] a memory communicatively connected to the at least one processor; wherein,

[0023] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the panel protection film restoration method as described in the first aspect above.

[0024] A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the panel protection film restoration method as described in the first aspect above.

[0025] A fifth aspect of the present invention provides a computer program product, the computer program product comprising a computer program, and when the computer program is executed by a processor, the method for restoring the panel protective film as described in the first aspect above is implemented.

[0026] In this embodiment, it is determined that the repair equipment is loaded with the display panel to be repaired; a protective film is covered on the surface of the display panel; a laser signal is emitted to the pixel points in the first display area of ​​the display panel to repair the pixel points; the first display area is the area where the protective film is lifted; if the pixel points are repaired, first image data of the display panel is collected above the display panel; a posture adapted to the first display area is formulated for the restorer in the second display area of ​​the display panel based on the first image data; the second display area is the area where the protective film is not lifted; the restorer is controlled to move to the surface of the unlifted protective film according to the posture; the restorer is controlled to move from the surface of the unlifted protective film to the first display area to re-cover the lifted protective film on the surface of the first display area. This embodiment has established a standardized process for restoring the lifted protective film on the display panel, which can automatically position the lifted protective film and use a restorer to move from the inside to the outside on the protective film covering the display panel. This can reduce reliance on manual operation, unify the effect of pressing the protective film, reduce errors, and ensure that the lifted protective film is pressed back onto the surface of the display panel, effectively improving the efficiency of restoring the protective film on the display panel.

[0027] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 This is a flow chart of a panel protective film restoration method provided in Example 1 of the present invention.

[0030] Figure 2 It is a schematic diagram of a recovery protective film provided in Example 1 of the present invention.

[0031] Figure 3 This is an example diagram for constructing a first baseline provided in the first embodiment of the present invention.

[0032] Figure 4 This is another example diagram for constructing a first baseline provided in the first embodiment of the present invention.

[0033] Figure 5 This is a flow chart of a panel protective film restoration method provided in Embodiment 2 of the present invention.

[0034] Figure 6 It is a schematic diagram of a panel protective film recovery device provided in Embodiment 3 of the present invention.

[0035] Figure 7 It is a structural schematic diagram of a repair device provided in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can cover sequential implementations other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] Embodiment 1

[0039] See also Figure 1, showing a flow chart of a panel protective film restoration method provided in Embodiment 1 of the present invention. This embodiment can be applied to the situation where a restorer is used to automatically restore the lifted protective film to the surface of the display panel. The method can be performed by a panel protective film restoration device, which can be implemented in the form of hardware and / or software, and can be configured in a repair device.

[0040] In this embodiment, the repairing equipment includes components such as a lens, a camera, and a restorer.

[0041] The lens is mounted on a robotic arm and can move in multiple degrees of freedom. It is used to emit laser signals.

[0042] The camera is installed on the top of the repair equipment and is used to collect image data.

[0043] like Figure 2 As shown, the restorer 220 can be divided into a head 221 and a tail 222. The head 221 of the restorer 220 can be in a conical, cylindrical or other shape, and is made of plastic, metal or other materials. It has a flat and smooth surface and can be used to press the protective film lifted up on the surface of the display panel (Panel, PNL). The tail 222 of the restorer 220 is installed on a robotic arm and can move in multiple degrees of freedom.

[0044] like Figure 1 As shown, the method includes:

[0045] Step 101: Determine that a repair device is loaded with a display panel to be repaired.

[0046] During the production process of the display panel, if it is detected that some pixels of the display panel have point defects, such as hot pixels, dead pixels, stuck pixels, crushed pixels, etc., it can be determined that the display panel is in a state of waiting to be repaired and is loaded into the repair equipment.

[0047] The surface of the display panel to be repaired is covered with a protective film, and the technical engineer lifts the protective film from a corner of the display panel based on the pixel with the point defect. Generally, the technical engineer lifts the protective film from the corner of the display panel that is closest to the pixel (coordinate) with the point defect.

[0048] For easy distinction, the area on the display panel where the protective film is lifted by the technical engineer can be recorded as the first display area, and the area on the display panel where the protective film is not lifted by the technical engineer can be recorded as the second display area. That is, the first display area is the area on the display panel where the protective film is lifted, and the second display area is the area on the display panel where the protective film is not lifted (still covered with the protective film).

[0049] Furthermore, the first display area and the second display area may be in a regular shape or an irregular shape.

[0050] For example, Figure 2 As shown, in the display panel 200, there is a pixel point P with a point defect in the upper left corner. Technical engineers usually start to lift the protective film from the corner point Q of the display panel 200. At this time, a first display area ACQ and a second display area ACWER can be formed in the display panel 200.

[0051] Step 102: emitting laser signals to pixels in a first display area of ​​the display panel to repair the pixels.

[0052] In the repair equipment, in the horizontal direction, a robotic arm can be used to control the lens to move from an initial horizontal position to the horizontal position of a pixel with a point defect, and align with the pixel with the point defect. In the vertical direction, a robotic arm can be used to control the lens to descend from an initial height to a specified position above the display panel. At this time, the lens can be driven to emit a laser signal at a wavelength matching the point defect to the pixel with the point defect, thereby repairing the pixel with the point defect.

[0053] Generally, using precise laser signals to irradiate pixels with point defects can melt or evaporate part of the thin film material, or restore the damaged transistor structure through thermal effects, thereby repairing the pixels with point defects.

[0054] Step 103: If the pixel point is repaired, first image data is collected from the display panel above the display panel.

[0055] Technical engineers can observe in real time the process of repairing pixels with point defects and determine whether the pixels with point defects have been repaired (such as repaired or faded).

[0056] If the technical engineer triggers the repair completion operation in the repair equipment and confirms that the repair of the pixel with the point defect is completed, on the one hand, the lens can be driven to reset, that is, in the vertical direction, the robotic arm can be used to control the lens to rise from the specified position above the display panel to the initial height, and in the horizontal direction, the robotic arm can be used to control the lens to move from the horizontal position of the pixel with the point defect to the initial horizontal position. On the other hand, the camera can be controlled to collect image data from the display panel at a top-down angle above the display panel, which is recorded as the first image data.

[0057] Step 104 : according to the first image data, a posture of the restorer adapted to the first display area is set in the second display area of ​​the display panel.

[0058] In actual applications, the relative distribution state between the first display area and the second display area on the display panel can be identified in the first image data, and a posture that is adapted to the first display area is formulated for the restorer in the second display area on the display panel based on the distribution state, so that the restorer can press the lifted protective film to the surface of the display panel from the inside (the second display area on the display panel) to the outside (the first display area on the display panel) according to the posture, so that the protective film is re-covered on the surface of the display panel.

[0059] In one embodiment of the present invention, step 104 may include the following steps:

[0060] Step 1041: Generate a first baseline passing through a first display area in the first image data.

[0061] In this embodiment, the first display area ACQ may be identified in the first image data, so that the first baseline L1 passing through the first display area ACQ may be generated.

[0062] The first baseline L1 is the path of the restorer 220 pressing the lifted protective film ABC. Therefore, under normal circumstances, the first baseline L1 is usually a line segment passing through the center range of the first display area ACQ (such as the center, center of gravity, etc.), which improves the quality of the restored protective film and reduces the probability of operational errors.

[0063] In one method of constructing the first baseline, in the world coordinate system, the actual distance between each pixel with a point defect and each corner point of the display panel can be calculated based on parameters such as the size of the display panel and the coordinates of each pixel with a point defect.

[0064] For example, Figure 3 As shown, for a pixel point P with a point defect, the actual distances PQ, PW, PE, and PR between each corner point QWER of the display panel can be calculated respectively.

[0065] For each corner point of the display panel, the average value of all corresponding actual distances can be calculated as the average distance.

[0066] Since technical engineers usually lift the protective film from the corner point in the display panel that is closest to the pixel with the point defect, the average distances corresponding to the corner points of the display panel can be compared to determine the first target corner point and the second target corner point in the display panel, where the first target corner point is the corner point in the display panel with the smallest average distance, and the second target corner point is the corner point in the display panel that is diagonally opposite to the first target corner point.

[0067] Query the first transformation relationship (such as translation relationship, rotation relationship, etc.) between the coordinate system of the display panel and the coordinate system of the camera, and project the first target corner point and the second target corner point into the first image data according to the first transformation relationship to obtain the first projection corner point and the second projection corner point, that is, project the first target corner point into the first image data according to the first transformation relationship to obtain the first projection corner point, and project the second target corner point into the first image data according to the first transformation relationship to obtain the second projection corner point.

[0068] A line segment is used to connect the first projection corner point and the second projection corner point to obtain a first baseline passing through the first display area.

[0069] For example, Figure 3 As shown, the first target corner point Q and the second target corner point E are located in the display panel QWER, then the first baseline L1 is the line segment QE.

[0070] In this method, considering that technical engineers usually start to lift up the protective film from the corner point of the display panel, the first baseline is planned with the corner point of the display panel where the protective film is lifted up as the end point, so that the first baseline has no deviation or little deviation from the center range of the first display area. In most cases, the first baseline directly passes through the center range of the first display area. When constructing the first baseline, the specific shapes of the first display area and the second display area are not concerned, which can reduce the amount of calculation, reduce the calculation time, and increase the speed of constructing the first baseline.

[0071] In another way of constructing the first baseline, since the display panel will be fixed in the repair equipment for repair, the display panel in the repair equipment can be calibrated in advance in the coordinate system of the camera. At this time, the area where the display panel is calibrated can be cropped out in the first image data as the first repair area, that is, the first repair area is the area where the display panel is located in the first image data, and the border of the first repair area is the border of the display panel.

[0072] Edge detection is performed in the first repair area using algorithms such as Sobel, Prewitt, and Laplacian. Multiple edge data are detected in the first repair area. In the business scenario of restoring the protective film, the edge of concern is mainly the lifted protective film. Therefore, the intensity of edge detection can be reduced (such as reducing the gradient amplitude of Sobel in the x and y directions, etc.), so that the detected edge data is the strong edge of the lifted protective film, rather than the weak edge such as the stripes of the display panel.

[0073] Edge data whose two endpoints are both on the border of the first repair area are screened out from the first image data as a first target edge, so that the first target edge represents a boundary between the lifted protective film and the unlifted protective film.

[0074] A line segment passing through the midpoint of the first target side and perpendicular to the first target side is generated as a first baseline passing through the first display area.

[0075] For example, Figure 4 As shown, edge detection is performed in the display panel QWER (first repair area) to detect edge data AB, BC, and AC, wherein since the two endpoints A and C of the edge data AC are both on the border of the first repair area, the edge data AC is the first target edge, and a first baseline L1 perpendicular to the first target edge AC is generated through the midpoint F of the first target edge AC.

[0076] In this method, a first baseline is constructed based on the boundary between the lifted protective film and the unlifted protective film, thereby improving the matching degree between the first baseline and the first display area, ensuring that it directly passes through the center range of the first display area, and improving the accuracy of restoring the protective film.

[0077] Of course, the above-mentioned method of constructing the first baseline is only used as an example. When implementing this embodiment, other methods of constructing the first baseline can be set according to actual conditions, and this embodiment does not limit this.

[0078] Step 1042: In the first image data, map the corner points of the lifted protective film onto the first baseline to obtain reference points.

[0079] In the first image data, the corner points of the lifted protective film can be located, and the corner points of the lifted protective film can be mapped onto the first baseline to obtain reference points.

[0080] In a specific implementation, if the first baseline is first constructed using the former method mentioned above, a first repair area for calibrating the display panel can be cropped out from the first image data, and multiple edge data can be detected in the first repair area; if the first baseline is first constructed using the latter method mentioned above, the first repair area and the first baseline can be queried.

[0081] Edge data with one end point on the border of the first repair area and one end point in the first repair area are screened out as the second target edge, and the second target edge represents the edge of the lifted protective film.

[0082] The point where the two second target edges intersect represents the corner point of the lifted protective film, and the point where the two second target edges intersect is vertically mapped onto the first baseline to obtain a reference point.

[0083] For example, Figure 2 As shown, endpoint A of edge data AB is on the border of the first repair area and endpoint B is within the first repair area, and endpoint C of edge data BC is on the border of the first repair area and endpoint B is within the first repair area. Therefore, edge data AB and edge data BC are both second target edges. Compared with point B, point B is vertically mapped to the first baseline to obtain reference point D.

[0084] Step 1043: In the first image data, starting from the reference point on the first baseline, move a preset step length in a direction away from the first display area to obtain an offset point in the second display area of ​​the display panel.

[0085] like Figure 2 As shown, in the first image data, starting from the reference point D on the first baseline L1 and moving a preset step length in a direction away from the first display area ACQ, an offset point E in the second display area of ​​the display panel is obtained.

[0086] Generally, the lifted protective film is turned outward, and the corner points of the lifted protective film are usually the farthest positions turned outward. Determining offset points based on the corner points of the lifted protective film can prevent the restorer from pressing the lifted protective film when it descends.

[0087] Step 1044: Generate a second baseline that passes through the offset point and is perpendicular to the first baseline.

[0088] like Figure 2 As shown, in the first image data, a line segment passing through the offset point E and perpendicular to the first baseline can be generated as the second baseline L2.

[0089] Step 1045: Set the calibrated height, offset point and second baseline of the protective film covering the display panel as the posture.

[0090] Since the display panel will be fixed in the repair equipment for repair, the height of the protective film covering the display panel in the repair equipment can be calibrated in advance in the coordinate system of the robotic arm to which the restorer belongs. At this time, the calibrated height of the protective film covering the display panel can be queried. When the restorer is lowered to this height, the head of the restorer (especially the flat and smooth surface) will slightly press on the protective film covering the display panel.

[0091] Furthermore, the second transformation relationship (such as translation relationship, rotation relationship, etc.) between the coordinate system of the camera and the coordinate system of the robotic arm to which the restorer belongs can be queried, and the information of the first image data (such as the first baseline, the second baseline, the offset point, etc.) can be projected from the coordinate system of the first image data to the coordinate system of the robotic arm where the restorer is located according to the second transformation relationship, so as to facilitate the robotic arm to control the restorer to restore the protective film on the display panel.

[0092] In this embodiment, the calibrated height, offset point and second baseline of the protective film covering the display panel may be set as the initial posture of the restorer.

[0093] Step 105 , controlling the restorer to move to the surface of the protective film that has not been lifted according to the posture.

[0094] In the repair equipment, when the technical engineer triggers the restoration operation of the protective film, the robotic arm can be used to control the restorer to move to the surface of the unlifted protective film according to the initial posture to press on the surface of the unlifted protective film.

[0095] In the specific implementation, Figure 2 As shown, in the repair equipment, in the horizontal direction, the robotic arm can be used to control the robotic arm to move from the initial horizontal position to the horizontal position of the offset point, and the head of the robotic arm can be rotated around the offset point, so that the robotic arm is used to control the restorer 220 to be aligned in the horizontal direction according to the offset point E and the second baseline L2, wherein the alignment includes the positioning point (such as the midpoint, etc.) in the head 221 of the restorer 220 overlapping with the offset point E, and the head 221 of the restorer 220 being parallel to the second baseline L2.

[0096] If the restorer is aligned in the horizontal direction, the restorer is controlled by a robotic arm to drop from an initial height to a specified height in the vertical direction so as to drop to the surface of the protective film that has not been lifted.

[0097] Step 106: Control the restorer to move from the surface of the protective film that has not been lifted toward the first display area, so as to cover the surface of the first display area with the lifted protective film again.

[0098] In this embodiment, a robotic arm can be used to control the restorer to move from the surface of the unlifted protective film to the first display area. During the movement, the restorer presses the lifted protective film and re-covers the lifted protective film on the surface of the first display area.

[0099] In a specific implementation, on the surface of the protective film of the display panel, the restorer can be controlled to move along the first baseline from the surface of the unlifted protective film to the first display area to re-cover the surface of the first display area with the lifted protective film.

[0100] In this embodiment, it is determined that the repair equipment is loaded with the display panel to be repaired; a protective film is covered on the surface of the display panel; a laser signal is emitted to the pixel points in the first display area of ​​the display panel to repair the pixel points; the first display area is the area where the protective film is lifted; if the pixel points are repaired, first image data of the display panel is collected above the display panel; a posture adapted to the first display area is formulated for the restorer in the second display area of ​​the display panel based on the first image data; the second display area is the area where the protective film is not lifted; the restorer is controlled to move to the surface of the unlifted protective film according to the posture; the restorer is controlled to move from the surface of the unlifted protective film to the first display area to re-cover the lifted protective film on the surface of the first display area. This embodiment has established a standardized process for restoring the lifted protective film on the display panel, which can automatically position the lifted protective film and use a restorer to move from the inside to the outside on the protective film covering the display panel. This can reduce reliance on manual operation, unify the effect of pressing the protective film, reduce errors, and ensure that the lifted protective film is pressed back onto the surface of the display panel, effectively improving the efficiency of restoring the protective film on the display panel.

[0101] Embodiment 2

[0102] See also Figure 5 , shows a flow chart of a panel protection film recovery method provided by the second embodiment of the present invention. This embodiment adds an operation of checking the recovery state of the protection film on the basis of the previous embodiment. Figure 5 As shown, the method includes:

[0103] Step 501: Determine whether a repair device is loaded with a display panel to be repaired.

[0104] Wherein, the surface of the display panel is covered with a protective film.

[0105] Step 502: emit a laser signal to a pixel point in a first display area of ​​the display panel to repair the pixel point.

[0106] The first display area is the area where the protective film is lifted.

[0107] Step 503: If the pixel point is repaired, first image data is collected from the display panel above the display panel.

[0108] Step 504: according to the first image data, a posture adapted to the first display area is set for the restorer in the second display area of ​​the display panel.

[0109] The second display area is an area where the protective film is not lifted.

[0110] Step 505: Control the restorer to move to the surface of the protective film that has not been lifted according to the posture.

[0111] Step 506: Control the restorer to move from the surface of the protective film that has not been lifted toward the first display area, so as to cover the surface of the first display area with the lifted protective film again.

[0112] Step 507 : collecting second image data from the display panel above the display panel.

[0113] In this embodiment, the camera is controlled to collect image data of the display panel at a top-down angle above the display panel, which is recorded as second image data.

[0114] Step 508 : Detect the restored state of the protective film according to the second image data.

[0115] In this embodiment, operations such as target detection and classification may be performed in the second image data to detect the restored state of the protective film and determine whether the protective film is re-covered on the surface of the first display area.

[0116] Exemplarily, a region for calibrating the display panel may be cropped out from the second image data as a second repair region, and edge detection may be performed in the second repair region using algorithms such as Sobel, Prewitt, and Laplacian.

[0117] If any edge data is detected in the second repair area, it can be determined that the restoration state of the protective film is restoration failure. At this time, the restorer can be controlled again to perform the restoration operation.

[0118] When the restoration operation fails after multiple executions, an alarm message may be generated to prompt a technical engineer to check the display panel.

[0119] If no edge data is detected in the second repair area, it can be determined that the restoration state of the protection film is successful.

[0120] In this embodiment, edge detection is used in the second repair area to detect the restored state of the protective film, which can ensure high accuracy, simple calculation and fast detection speed.

[0121] Step 509: If the restoration status is successful, control the repairing equipment to uninstall the display panel.

[0122] If it is determined that the recovery state of the display panel is successful, the restorer can be driven to reset, that is, the mechanical arm is used to control the restorer to rise vertically from a specified height above the display panel to an initial height, and the mechanical arm is used to control the lens to move horizontally from the current horizontal position to the initial horizontal position.

[0123] If the restorer completes the resetting, the repair device can be controlled to unload the display panel. At this time, the door of the repair device is opened and the repair device is moved out of the repair device.

[0124] Embodiment 3

[0125] See also Figure 6 , showing a schematic diagram of the structure of a panel protective film recovery device provided by the third embodiment of the present invention. Applied to a repair device, the repair device has a restorer, such as Figure 6 As shown, the device comprises:

[0126] The display panel loading module 601 is used to determine that the repair device loads the display panel to be repaired; the surface of the display panel is covered with a protective film;

[0127] A pixel repair module 602 is used to emit a laser signal to a pixel in a first display area of ​​the display panel to repair the pixel; the first display area is an area where the protective film is lifted;

[0128] An initial image acquisition module 603, configured to acquire first image data of the display panel above the display panel if the pixel point has been repaired;

[0129] A posture setting module 604 is used to set a posture of the restorer adapted to the first display area in a second display area of ​​the display panel according to the first image data; the second display area is an area where the protective film is not lifted;

[0130] A first movement control module 605, used to control the restorer to move to the surface of the protective film that has not been lifted according to the posture;

[0131] The second movement control module 606 is used to control the restorer to move from the surface of the protective film that has not been lifted to the first display area, so as to cover the lifted protective film on the surface of the first display area again.

[0132] In one embodiment of the present invention, the posture formulation module 604 includes:

[0133] A first baseline generating module, configured to generate a first baseline passing through the first display area in the first image data;

[0134] A reference point mapping module, used for mapping the corner points of the lifted protective film to the first baseline in the first image data to obtain reference points;

[0135] an offset point determination module, configured to obtain an offset point in a second display area of ​​the display panel by moving a preset step length from the reference point on the first baseline in the first image data in a direction away from the first display area;

[0136] A second baseline generating module, used for generating a second baseline passing through the offset point and perpendicular to the first baseline;

[0137] The posture determination module is used to set the calibrated height of the protective film covering the display panel, the offset point and the second baseline as a posture.

[0138] In one embodiment of the present invention, the first baseline generation module includes:

[0139] An actual distance calculation module, used to calculate the actual distance between each pixel point and each corner point of the display panel;

[0140] An average distance calculation module, used for calculating the average value of the actual distances for each corner point of the display panel as the average distance;

[0141] A target corner point determination module, used to determine a first target corner point and a second target corner point in the display panel; the first target corner point is a corner point in the display panel with the smallest average distance, and the second target corner point is a corner point in the display panel that is diagonally related to the first target corner point;

[0142] A target corner point projection module, used to project the first target corner point and the second target corner point into the first image data respectively to obtain a first projection corner point and a second projection corner point;

[0143] The projection corner point connection module is used to connect the first projection corner point and the second projection corner point to obtain a first baseline passing through the first display area.

[0144] In one embodiment of the present invention, the first baseline generation module includes:

[0145] A first repair region cropping module, configured to crop a first repair region for calibrating the display panel from the first image data;

[0146] An edge data detection module, configured to detect a plurality of edge data in the first repair area;

[0147] A first target edge screening module, used for screening the edge data whose two endpoints are both on the border of the first repair area as the first target edge;

[0148] The vertical line generating module is used to generate a line segment passing through the midpoint of the first target edge and perpendicular to the first target edge as a first baseline passing through the first display area.

[0149] In one embodiment of the present invention, the reference point mapping module includes:

[0150] A second target edge screening module, used for screening the edge data with one endpoint on the border of the first repair area and one endpoint in the first repair area as the second target edge;

[0151] The intersection mapping module is used to vertically map the intersection point of two second target edges to the first baseline to obtain a reference point.

[0152] In one embodiment of the present invention, the first movement control module 605 includes:

[0153] an alignment module, used for controlling the restorer to align in the horizontal direction according to the offset point and the second baseline; the alignment includes overlapping the positioning point in the head of the restorer with the offset point and the head of the restorer being parallel to the second baseline;

[0154] A landing module, used for controlling the restorer to be lifted to the height in the vertical direction if the restorer is aligned in the horizontal direction, so as to land on the surface of the protective film that has not been lifted;

[0155] The second movement control module 606 includes:

[0156] The baseline moving module is used to control the restorer to move along the first baseline from the surface of the protective film that has not been lifted to the first display area, so as to cover the lifted protective film on the surface of the first display area again.

[0157] The second movement control module 606 further includes:

[0158] A repair image acquisition module, used for acquiring second image data of the display panel above the display panel;

[0159] a recovery state detection module, used for detecting the recovery state of the protective film according to the second image data;

[0160] The recovery state unloading module is used to control the repairing equipment to unload the display panel if the recovery state is a successful recovery.

[0161] In one embodiment of the present invention, the recovery state detection module includes:

[0162] A second repair region cropping module, used for cropping a second repair region calibrated for the display panel from the second image data;

[0163] The restoration success determination module is used to determine that the restoration state of the protection film is a restoration success if no edge data is detected in the second repair area.

[0164] The panel protective film recovery device provided in the embodiment of the present invention can execute the panel protective film recovery method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the panel protective film recovery method.

[0165] Embodiment 4

[0166] See also Figure 7 , shows a schematic diagram of the structure of a repair device provided by an embodiment of the present invention. The repair device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, blade servers, mainframe computers, and other suitable computers. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0167] like Figure 7 As shown, the repair device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by the at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the repair device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0168] A number of components in the repair device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the repair device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0169] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the panel protective film recovery method.

[0170] In some embodiments, the panel protective film recovery method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the repair device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the panel protective film recovery method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the panel protective film recovery method in any other appropriate manner (e.g., by means of firmware).

[0171] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0172] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0173] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0174] To provide interaction with a user, the systems and techniques described herein may be implemented on a repair device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) through which a user can provide input to the repair device. Other types of devices may also be used to provide interaction with a user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0175] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0176] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0177] Embodiment 5

[0178] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the method for restoring the panel protective film provided by any embodiment of the present invention is implemented.

[0179] In the process of implementation, the computer program product can be written in one or more programming languages ​​or a combination thereof to perform the computer program code of the present invention, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, using an Internet service provider to connect through the Internet).

[0180] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0181] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for restoring a panel protective film, characterized in that: Applied to a repair device, wherein the repair device has a restorer, the method comprises: Determining that the repair device is loaded with a display panel to be repaired; a protective film is covered on the surface of the display panel; Emitting a laser signal to a pixel point in a first display area of ​​the display panel to repair the pixel point; the first display area is an area where the protective film is lifted; If the pixel point is repaired, collecting first image data of the display panel above the display panel; According to the first image data, the restorer is configured with a posture adapted to the first display area in a second display area of ​​the display panel; the second display area is an area where the protective film is not lifted; Controlling the restorer to move to the surface of the protective film that has not been lifted according to the posture; The restorer is controlled to move from the surface of the protective film that has not been lifted toward the first display area, so that the lifted protective film is re-covered on the surface of the first display area.

2. The method according to claim 1, characterized in that The step of formulating a posture of the restorer adapted to the first display area in the second display area of ​​the display panel according to the first image data comprises: In the first image data, generating a first baseline passing through the first display area; In the first image data, the corner points of the lifted protective film are mapped onto the first baseline to obtain reference points; In the first image data, starting from the reference point on the first baseline and moving in a direction away from the first display area by a preset step length, an offset point in the second display area of ​​the display panel is obtained; generating a second baseline passing through the offset point and perpendicular to the first baseline; The height calibrated for the protection film covering the display panel, the offset point and the second baseline are set as a posture.

3. The method according to claim 2, characterized in that Generating a first baseline passing through the first display area in the first image data includes: Calculating the actual distance between each pixel point and each corner point of the display panel; For each corner point of the display panel, calculating an average value between the actual distances as an average distance; Determine a first target corner point and a second target corner point in the display panel; the first target corner point is a corner point in the display panel with the smallest average distance, and the second target corner point is a corner point in the display panel that is diagonally related to the first target corner point; Projecting the first target corner point and the second target corner point into the first image data respectively to obtain a first projection corner point and a second projection corner point; The first projection corner point and the second projection corner point are connected to obtain a first baseline passing through the first display area.

4. The method according to claim 2, characterized in that: Generating a first baseline passing through the first display area in the first image data includes: Cutting out a first repair area calibrated for the display panel from the first image data; detecting a plurality of edge data in the first repair area; Filter out the edge data whose two endpoints are both on the border of the first repair area as the first target edge; A line segment passing through the midpoint of the first target edge and perpendicular to the first target edge is generated as a first baseline passing through the first display area.

5. The method according to claim 4, characterized in that In the first image data, mapping the corner points of the lifted protective film onto the first baseline to obtain reference points includes: Filtering the edge data with one endpoint on the border of the first repair area and one endpoint in the first repair area as the second target edge; The intersection point of the two second target edges is vertically mapped onto the first baseline to obtain a reference point.

6. The method according to claim 2, characterized in that The controlling the restorer to move to the surface of the protective film that is not lifted according to the posture comprises: Controlling the restorer to align in the horizontal direction according to the offset point and the second baseline; the alignment includes overlapping the positioning point in the head of the restorer with the offset point and the head of the restorer being parallel to the second baseline; If the restorer is aligned in the horizontal direction, the restorer is controlled to be lifted to the height in the vertical direction so as to be dropped to the surface of the protective film that is not lifted; The controlling the restorer to move from the surface of the protective film that has not been lifted toward the first display area so as to cover the lifted protective film on the surface of the first display area again comprises: The restorer is controlled to move along the first baseline from the surface of the protective film that has not been lifted toward the first display area, so as to cover the lifted protective film on the surface of the first display area again.

7. The method according to any one of claims 1 to 6, characterized in that Also includes: collecting second image data from the display panel above the display panel; detecting a restored state of the protective film according to the second image data; If the restoration status is successful, the repairing device is controlled to unload the display panel.

8. The method according to claim 7, characterized in that The detecting the restored state of the protective film according to the second image data comprises: Cutting out a second repair area calibrated for the display panel from the second image data; If no edge data is detected in the second repair area, it is determined that the restoration state of the protection film is successful.

9. A repair device, characterized in that: The repair equipment includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the panel protection film restoration method according to any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for restoring the panel protective film according to any one of claims 1 to 8 is implemented.

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