A method, apparatus, and storage medium for restoring panel protective film.

Abstract

This invention discloses a method, apparatus, and storage medium for restoring a protective film on a display panel. The method includes: determining that a repair device is loaded with a display panel to be repaired; emitting laser signals to pixels in a first display area of ​​the display panel to repair the pixels; the first display area is the area where the protective film has been lifted; if the pixel repair is completed, acquiring first image data of the display panel from above; based on the first image data, setting a posture for a restorer in a second display area of ​​the display panel that is adapted to the first display area; the second display area is the area where the protective film has not been lifted; controlling the restorer to move according to the posture to the surface of the unlifted protective film; controlling the restorer to move 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. A standardized process for restoring the protective film on the display panel is established, effectively improving the efficiency of protective film restoration.

Description

Technical Field

[0001] This invention relates to the technical field of panel manufacturing, and in particular to a method, apparatus and storage medium for restoring a panel protective film. Background Art

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

[0003] When pixel defects occur, lasers are typically used to repair them. Since the surface of the display panel is covered with a protective film, before repair begins, the technician uses tools to lift the protective film in the area where the defective pixel is located to prevent the protective film from interfering with the laser signal, allowing the laser signal to penetrate into the interior of the display panel. When the repair is complete, the technician uses tools to press the lifted protective film back onto the surface of the display panel.

[0004] The process of pressing the protective film by technical engineers is a manual operation that relies heavily on their experience. Different technical engineers can produce significantly different results when pressing the protective film, and errors are prone to occur. For example, some technical engineers may damage the protective film when pressing it, while others may spend too much time repeatedly pressing it, 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 method, apparatus and storage medium for restoring a protective film on a display panel, thereby improving the efficiency of restoring the protective film on the display panel.

[0006] A first aspect of the present invention provides a method for restoring a panel protective film, applied to a repair device, the repair device having a restorer, the method comprising:

[0007] The repair equipment is equipped with the display panel to be repaired; a protective film is covered on the surface of the display panel.

[0008] A laser signal is emitted toward a pixel in a first display area of ​​the display panel to repair the pixel; the first display area is the area where the protective film has been lifted.

[0009] If the pixel is repaired, first image data is acquired on the display panel from above the display panel.

[0010] Based on the first image data, the restorer is positioned in a posture that adapts to the first display area in the second display area of ​​the display panel; the second display area is the area where the protective film is not lifted.

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

[0012] The restorer is controlled to move from the surface of the protective film that has never been lifted toward the first display area, so as to re-cover the surface of the first display area with the lifted protective film.

[0013] A second aspect of the present invention provides a panel protective film restoration device for use in repair equipment, the repair equipment having a restorer, the device comprising:

[0014] A display panel loading module is used to determine the display panel to be repaired loaded onto the repair equipment; a protective film is covered on the surface of the display panel;

[0015] A pixel repair module is used to emit laser signals to pixels in a first display area of ​​the display panel to repair the pixels; the first display area is the area where the protective film has been lifted.

[0016] An initial image acquisition module is used to acquire first image data of the display panel from above the display panel if the pixel has been repaired.

[0017] A posture determination module is used to determine a posture for the restorer that is adapted to the first display area 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.

[0018] The first movement control module is used to control 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 re-cover the surface of the first display area with the lifted protective film.

[0020] A third aspect of the present invention provides a repair apparatus, the repair apparatus 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 that can be executed by the at least one processor to enable the at least one processor to perform the panel protective 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 that, when executed by a processor, implements the panel protective film restoration method as described in the first aspect above.

[0025] A fifth aspect of the present invention provides a computer program product comprising a computer program that, when executed by a processor, implements the panel protective film restoration method as described in the first aspect above.

[0026] In this embodiment, a repair device is loaded with a display panel to be repaired; a protective film is covered on the surface of the display panel; a laser signal is emitted to the pixels in the first display area of ​​the display panel to repair the pixels; the first display area is the area where the protective film has been lifted; if the pixel repair is completed, first image data is acquired on the display panel from above; based on the first image data, a restorer is positioned in a second display area of ​​the display panel to adapt to the first display area; the second display area is the area where the protective film has not been lifted; the restorer is controlled to move according to the posture to the surface of the protective film that has not been lifted; the restorer is controlled to move from the surface of the protective film that has not been lifted to the first display area to re-cover the surface of the first display area with the lifted protective film. This embodiment establishes a standardized process for restoring the protective film that has been lifted on the display panel. The process can automatically locate 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 reduces reliance on manual operation, ensures consistent pressing of the protective film, reduces errors, and guarantees 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 description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0030] Figure 2 This is a schematic diagram of a restorative protective film provided in Embodiment 1 of the present invention.

[0031] Figure 3 This is an example diagram of constructing a first baseline provided in Embodiment 1 of the present invention.

[0032] Figure 4 This is an example diagram of another method for constructing a first baseline, provided in Embodiment 1 of the present invention.

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

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

[0035] Figure 7 This is a schematic diagram of the structure of a repair device provided in Embodiment 4 of the present invention. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate so that the embodiments of the invention described herein can cover implementations in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] Example 1

[0039] See Figure 1The diagram shows a flowchart of a panel protective film restoration method provided in Embodiment 1 of the present invention. This embodiment is applicable to situations 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 hardware and / or software and can be configured in a repair device.

[0040] In this embodiment, the repair 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 mounted on 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 conical, cylindrical, or made of materials such as plastic or metal. It has a flat and smooth surface and can be used to press the protective film that has been lifted off the surface of the display panel (PNL). The tail 222 of the restorer 220 is mounted 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 which display panel to be repaired is mounted on the repair equipment.

[0046] During the production process of a display panel, if defects are detected in certain pixels, such as hot pixels, dead pixels, stuck pixels, crushed pixels, etc., the display panel is determined to be in a state of needing repair and is loaded into the repair equipment.

[0047] The surface of the display panel to be repaired is covered with a protective film. 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 (coordinates) with the point defect.

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

[0049] Furthermore, the first display area and the second display area can present regular shapes or irregular shapes.

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

[0051] Step 102: Emit laser signals to the pixels in the 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 movement of the lens from an initial horizontal position to the horizontal position of the pixel with the point defect, aligning it with the pixel with the point defect. In the vertical direction, the 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 with a wavelength matching the point defect towards 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 some of the thin film material, or restore the damaged transistor structure through thermal effects, thus repairing pixels with point defects.

[0054] Step 103: If the pixel repair is completed, the first image data is acquired from above the display panel.

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

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

[0057] Step 104: Based on the first image data, set the posture of the restorer in the second display area of ​​the display panel to match the first display area.

[0058] In practical applications, the relative distribution between the first display area and the second display area on the display panel can be identified in the first image data. Based on this distribution, the restorer is positioned in the second display area of ​​the display panel to match the first display area. This allows the restorer to press the lifted protective film onto the surface of the display panel from the inside (second display area on the display panel) to the outside (first display area on the display panel) according to this 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 the first display area in the first image data.

[0061] In this embodiment, a first display area ACQ can be identified in the first image data, thereby establishing a first baseline L1 that passes through the first display area ACQ.

[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 range where the center, center of gravity, etc. are located), which improves the quality of the restored protective film and reduces the probability of operation error.

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

[0064] For example, such as Figure 3 As shown, for a pixel 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 typically lift the protective film from the corner of the display panel closest to the pixel with the defect, they can compare the average distances to each corner of the display panel to determine the first target corner and the second target corner. The first target corner is the corner with the smallest average distance in the display panel, and the second target corner is the corner in the display panel that is diagonally opposite to the first target corner.

[0067] The system queries 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. Based on the first transformation relationship, the first target corner point and the second target corner point are projected into the first image data respectively to obtain the first projected corner point and the second projected corner point. That is, the first target corner point is projected into the first image data according to the first transformation relationship to obtain the first projected corner point, and the second target corner point is projected into the first image data according to the first transformation relationship to obtain the second projected corner point.

[0068] Connect the first projection corner point and the second projection corner point with a line segment to obtain the first baseline that passes through the first display area.

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

[0070] In this approach, considering that technical engineers typically start by lifting the protective film from the corner of the display panel, the first baseline is planned with the corner of the display panel where the protective film has been lifted as the endpoint. This ensures that the first baseline has little or no deviation from the center of the first display area and, in most cases, will directly pass through the center of the first display area. When constructing the first baseline, the specific shapes of the first and second display areas are not considered, which can reduce the amount of computation, reduce computation time, and increase the speed of constructing the first baseline.

[0071] In another way of constructing the first baseline, since the display panel is fixed in the repair equipment for repair, the display panel in the repair equipment can be pre-calibrated in the coordinate system of the camera. At this time, the area calibrated for the display panel can be cropped from 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 focus is mainly on the lifted protective film. Therefore, the intensity of edge detection can be reduced (such as reducing the gradient magnitude of Sobel in the x and y directions), so that the detected edge data are the strong edges of the lifted protective film, rather than weak edges such as patterns on the display panel.

[0073] Edge data with both endpoints on the border of the first repair area are selected from the first image data and used as the first target edge, such that the first target edge represents the boundary between the lifted protective film and the unlifted protective film.

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

[0075] For example, such as Figure 4 As shown, edge detection is performed in the QWER (first repair area) display panel, and edge data AB, BC, and AC can be detected. Since the two endpoints A and C of edge data AC are both on the border of the first repair area, edge data AC is the first target edge. 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, which improves the matching degree between the first baseline and the first display area, ensures that it passes directly through the center range of the first display area, and improves the accuracy of restoring the protective film.

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

[0078] Step 1042: In the first image data, the corner points of the protective film that has been lifted are mapped onto the first baseline to obtain the reference point.

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

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

[0081] Select one endpoint on the border of the first repair area and one endpoint on the edge of the first repair area as the second target edge, which represents the edge of the lifted protective film.

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

[0083] For example, such as 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. 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, both edge data AB and edge data BC are second target edges. Compared with point B, point B is vertically mapped onto 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 the 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, a preset step size is moved in a direction away from the first display area ACQ to obtain the offset point E in the second display area of ​​the display panel.

[0086] Normally, the protective film that is lifted up is flipped outwards. The corner of the lifted protective film is usually the furthest position of the outward flip. Setting an offset point based on the corner of the lifted protective film can prevent the restorer from pressing on 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 height, offset point and second baseline of the protective film covering the display panel as the orientation.

[0090] Since the display panel is fixed in the repair equipment for repair, the height of the protective film covering the display panel in the repair equipment can be pre-calibrated in the coordinate system of the robotic arm to which the restorer belongs. At this time, the 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 apply a slight pressure to 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. Based on the second transformation relationship, the information of the first image data (such as the first baseline, the second baseline, the offset point, etc.) is projected from the coordinate system of the first image data to the coordinate system of the robotic arm to which the restorer belongs, so that the robotic arm can control the restorer to restore the protective film on the display panel.

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

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

[0094] In the repair equipment, when a technician triggers the restoration operation of the protective film, a robotic arm can be used to control the restorer to move to the surface of the unlifted protective film in its initial posture, so as to press it onto the surface of the unlifted protective film.

[0095] In specific implementations, such as Figure 2 As shown, in the repair equipment, in the horizontal direction, the robotic arm can be controlled to move the robotic arm from the initial horizontal position to the horizontal position of the offset point, and rotate the head of the robotic arm around the offset point, thereby using the robotic arm to control the restorer 220 to be aligned in the horizontal direction according to the offset point E and the second baseline L2. The alignment includes the positioning point (such as the midpoint) 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 horizontally, a robotic arm is used to control the restorer to descend from its initial height to a designated height in the vertical direction, so as to land on 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 to the surface of the first display area, so as to re-cover the surface of the first display area with the lifted protective film.

[0098] In this embodiment, a robotic arm can be used to control the restorer to move from the surface of the protective film that has not been lifted to the first display area. During the movement, the restorer presses the lifted protective film and covers the surface of the first display area with the lifted protective film again.

[0099] In a specific implementation, on the surface of the protective film of the display panel, a controllable restorer moves along a first baseline from the surface of the protective film that has never been lifted to the surface of the first display area, so as to re-cover the lifted protective film on the surface of the first display area.

[0100] In this embodiment, a repair device is loaded with a display panel to be repaired; a protective film is covered on the surface of the display panel; a laser signal is emitted to the pixels in the first display area of ​​the display panel to repair the pixels; the first display area is the area where the protective film has been lifted; if the pixel repair is completed, first image data is acquired on the display panel from above; based on the first image data, a restorer is positioned in a second display area of ​​the display panel to adapt to the first display area; the second display area is the area where the protective film has not been lifted; the restorer is controlled to move according to the posture to the surface of the protective film that has not been lifted; the restorer is controlled to move from the surface of the protective film that has not been lifted to the first display area to re-cover the surface of the first display area with the lifted protective film. This embodiment establishes a standardized process for restoring the protective film that has been lifted on the display panel. The process can automatically locate 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 reduces reliance on manual operation, ensures consistent pressing of the protective film, reduces errors, and guarantees 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] Example 2

[0102] See Figure 5 The diagram shows a flowchart of a panel protective film restoration method according to Embodiment 2 of the present invention. This embodiment adds an operation to check the restoration status of the protective film based on the previous embodiments. Figure 5 As shown, the method includes:

[0103] Step 501: Determine the display panel to be repaired on the equipment being repaired.

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

[0105] Step 502: Emit laser signals to the pixels in the first display area of ​​the display panel to repair the pixels.

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

[0107] Step 503: If the pixel repair is completed, the first image data is acquired from above the display panel.

[0108] Step 504: Based on the first image data, set the posture of the restorer in the second display area of ​​the display panel to match the first display area.

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

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

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

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

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

[0114] Step 508: Detect the restoration status of the protective film based on the second image data.

[0115] In this embodiment, target detection, classification, and other operations can be performed on the second image data to detect the restoration state of the protective film and determine whether the protective film has been re-covered on the surface of the first display area.

[0116] For example, an area labeled for the display panel can be cropped from the second image data as a second repair area, and edge detection can be performed in the second repair area 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 of the protective film has failed. At this time, the restorer can be controlled again to perform the restoration operation.

[0118] If multiple restoration attempts fail, an alarm message can be generated to prompt a technical engineer to check the display panel.

[0119] If no edge data is detected in the second repair area, the protective film can be considered successfully restored.

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

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

[0122] If the restoration of the display panel is determined to be successful, the restorer can be driven to reset. That is, the restorer is controlled by a robotic arm to rise vertically from a specified height above the display panel to the initial height, and the lens is controlled by the robotic arm to move horizontally from the current horizontal position to the initial horizontal position.

[0123] If the restorer completes the reset, you can control the unloading display panel of the repair equipment. At this time, open the door of the repair equipment and remove the repair equipment.

[0124] Example 3

[0125] See Figure 6 This diagram illustrates a structural schematic of a panel protective film restoration device according to Embodiment 3 of the present invention. It is applied to repair equipment, which includes a restorer, such as... Figure 6 As shown, the device includes:

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

[0127] The pixel repair module 602 is used to emit laser signals to the pixels in the first display area of ​​the display panel to repair the pixels; the first display area is the area where the protective film has been lifted.

[0128] The initial image acquisition module 603 is used to acquire first image data of the display panel from above the display panel if the pixel has been repaired.

[0129] The posture determination module 604 is used to determine the posture of the restorer in the second display area of ​​the display panel according to the first image data, which is adapted to the first display area; the second display area is the area where the protective film is not lifted.

[0130] The first movement control module 605 is 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 re-cover the surface of the first display area with the lifted protective film.

[0132] In one embodiment of the present invention, the attitude determination module 604 includes:

[0133] The first baseline generation module is used to generate a first baseline passing through the first display area in the first image data;

[0134] The reference point mapping module is used to map the corner points of the protective film that has been lifted onto the first baseline in the first image data to obtain reference points;

[0135] The offset point determination module is used to move a preset step size from the reference point on the first baseline in the first image data in a direction away from the first display area to obtain the offset point in the second display area of ​​the display panel.

[0136] The second baseline generation module is used to generate a second baseline that passes through the offset point and is perpendicular to the first baseline;

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

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

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

[0140] The average distance calculation module is used to calculate the average value between the actual distances for each corner point of the display panel, and use it as the average distance.

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

[0142] The target corner projection module is used to project the first target corner and the second target corner onto the first image data respectively to obtain the first projected corner and the second projected corner.

[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] The first repair area cropping module is used to crop out the first repair area marked on the display panel from the first image data;

[0146] An edge data detection module is used to detect multiple edge data in the first repair area;

[0147] The first target edge filtering module is used to filter out the edge data whose two endpoints are both on the border of the first repair area, as the first target edge;

[0148] The perpendicular line generation module is used to generate a line segment that passes through the midpoint of the first target side and is perpendicular to the first target side, 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] The second target edge filtering module is used to filter out the edge data with one endpoint on the border of the first repair area and one endpoint within the first repair area, as the second target edge;

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

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

[0153] An alignment module is used to control the restorer to align horizontally according to the offset point and the second baseline; the alignment includes the positioning point in the head of the restorer overlapping with the offset point and the head of the restorer being parallel to the second baseline;

[0154] A landing module is used to control the restorer to rise 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 motion control module 606 includes:

[0156] A baseline movement module is used to control the restorer to move along the first baseline toward the surface of the protective film that has never been lifted toward the first display area, so as to re-cover the lifted protective film onto the surface of the first display area.

[0157] The second motion control module 606 also includes:

[0158] Repair the image acquisition module, used to acquire second image data of the display panel from above the display panel;

[0159] The restoration state detection module is used to detect the restoration state of the protective film based on the second image data;

[0160] The recovery status unloading module is used to control the repair equipment to unload the display panel if the recovery status is successful.

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

[0162] The second repair area cropping module is used to crop out the second repair area marked on the display panel from the second image data;

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

[0164] The panel protective film restoration device provided in this embodiment of the invention can perform the panel protective film restoration method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects for performing the panel protective film restoration method.

[0165] Example 4

[0166] See Figure 7 This diagram illustrates a structural schematic 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 illustrative and are not intended to limit the implementation of the 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, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer programs stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the repair device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

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

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

[0170] In some embodiments, the panel protective film restoration method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as 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 ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the panel protective film restoration method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the panel protective film restoration method by any other suitable means (e.g., by means of firmware).

[0171] Various embodiments 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-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0172] Computer programs used to implement 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, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

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

[0174] To provide interaction with the user, the systems and techniques described herein can 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 the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the repair device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0175] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0176] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0177] Example 5

[0178] This invention also provides a computer program product, which includes a computer program that, when executed by a processor, implements the panel protective film restoration method provided in any embodiment of this invention.

[0179] In implementing the computer program product, computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. Programming languages ​​include object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0180] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0181] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for restoring a panel protective film, characterized in that, Applied to repair equipment, the repair equipment having a restorer, the method includes: The repair equipment is equipped with the display panel to be repaired; a protective film is covered on the surface of the display panel. A laser signal is emitted toward a pixel in a first display area of ​​the display panel to repair the pixel; the first display area is the area where the protective film has been lifted. If the pixel is repaired, first image data is acquired on the display panel from above the display panel. Based on the first image data, the restorer is positioned in a posture that adapts to the first display area in the second display area of ​​the display panel; the second display area is the area where the protective film is not lifted. Control the restorer to move to the surface of the protective film that has not been lifted, according to the stated posture; The restorer is controlled to move from the surface of the protective film that has never been lifted toward the first display area, so as to re-cover the surface of the first display area with the lifted protective film.

2. The method according to claim 1, characterized in that, The step of setting a posture for the restorer to adapt to the first display area in the second display area of ​​the display panel based on the first image data includes: In the first image data, a first baseline is generated that passes through the first display area; In the first image data, the corner points of the protective film that has been lifted are mapped onto the first baseline to obtain reference points; In the first image data, starting from the reference point on the first baseline, a preset step size is moved in a direction away from the first display area to obtain an offset point in the second display area of ​​the display panel; Generate a second baseline that passes through the offset point and is perpendicular to the first baseline; The height of the protective film covering the display panel, the offset point, and the second baseline are set as the orientation.

3. The method according to claim 2, characterized in that, The step of generating a first baseline passing through the first display area in the first image data includes: Calculate the actual distance between each pixel and each corner point of the display panel; For each corner point of the display panel, calculate the average value between the actual distances, and use it as the average distance; A first target corner point and a second target corner point are determined in the display panel; the first target corner point is the corner point with the smallest average distance in the display panel, and the second target corner point is the corner point in the display panel that is diagonally opposite to the first target corner point; The first target corner point and the second target corner point are respectively projected into the first image data to obtain the first projected corner point and the second projected corner point; Connect the first projection corner point and the second projection corner point to obtain a first baseline that passes through the first display area.

4. The method according to claim 2, characterized in that, The step of generating a first baseline passing through the first display area in the first image data includes: A first repair area, defined for the display panel, is cropped from the first image data. Multiple edge data are detected in the first repair area; The edge data whose two endpoints are both on the border of the first repair area are selected 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: The edge data with one endpoint on the border of the first repair area and one endpoint within the first repair area are selected as the second target edge; The point where the two second target edges intersect is vertically mapped onto the first baseline to obtain the reference point.

6. The method according to claim 2, characterized in that, The control of the restorer to move to the surface of the protective film that has not been lifted according to the posture includes: The restorer is aligned horizontally according to the offset point and the second baseline; the alignment includes the positioning point in the head of the restorer overlapping 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, then the restorer is controlled to be raised to the height in the vertical direction so as to land on the surface of the protective film that has not been lifted. The control of moving the restorer from the surface of the protective film that has not been lifted toward the first display area to re-cover the surface of the first display area with the lifted protective film includes: The restorer is controlled to move along the first baseline toward the first display area from the surface of the protective film that has never been lifted, so as to re-cover the lifted protective film onto the surface of the first display area.

7. The method according to any one of claims 1-6, characterized in that, Also includes: Acquire second image data of the display panel from above the display panel; The restoration status of the protective film is detected based on the second image data; If the restoration status is successful, then control the repair equipment to unload the display panel.

8. The method according to claim 7, characterized in that, The step of detecting the restoration state of the protective film based on the second image data includes: The second repair area, defined for the display panel, is cropped from the second image data. If no edge data is detected in the second repair area, the protective film is determined to have been successfully restored.

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 that can be executed by the at least one processor to enable the at least one processor to perform the panel protective film restoration method as described in any one of claims 1-8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method for restoring the panel protective film as described in any one of claims 1-8.

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