Alignment methods, alignment systems and apparatus, computer equipment, storage media

Abstract

This application relates to an alignment method, alignment system and apparatus, computer equipment, and storage medium. The method includes: obtaining alignment deviations based on image information from multiple display panels, wherein the display panels are formed by laminating a substrate and a thin film, and the alignment deviation is the coordinate deviation between alignment marks on the substrate and alignment marks on the thin film; obtaining an alignment compensation value based on the alignment deviation and a preset calibration weight; and controlling a lamination device to correct the pose of the thin film to be laminated based on the alignment compensation value. The method of this application can automatically identify the alignment deviations in the current alignment process and automatically correct the thin film to be laminated, improving the alignment accuracy during the lamination of the thin film and substrate.

Description

Technical Field

[0001] This application relates to the field of optical product processing technology, and in particular to an alignment method, alignment system and apparatus, computer equipment, and storage medium. Background Technology

[0002] With the development of display technology, people have increasingly higher requirements for the performance of display panels. To improve display panel performance, it is necessary to improve the precision of the manufacturing process. One crucial step in the assembly of display panels is laminating a chip-on-film (COF) onto the wiring area of ​​a substrate. However, during the lamination process, misalignment often occurs between the film and the substrate, potentially leading to poor conductivity in the wiring area and affecting the display panel's performance. Therefore, improving the alignment accuracy during film-substrate lamination is a problem that needs to be solved. Summary of the Invention

[0003] Therefore, it is necessary to provide an alignment method, alignment system and apparatus, computer equipment and storage medium that can improve the alignment accuracy between the thin film and the substrate, in order to address the above-mentioned technical problems.

[0004] An alignment method includes: obtaining alignment deviations based on image information of multiple display panels, wherein the display panels are formed by laminating a substrate and a thin film, and the alignment deviations are coordinate deviations between alignment marks on the substrate and alignment marks on the thin film; obtaining alignment compensation values ​​based on the alignment deviations and preset calibration weights; and controlling a laminating device to correct the pose of the thin film to be laminated based on the alignment compensation values.

[0005] In one embodiment, the method further includes: updating the alignment compensation value, and controlling the pressing device to correct the pose of the film to be pressed according to the updated alignment compensation value.

[0006] In one embodiment, updating the alignment compensation value includes: when the alignment compensation value is greater than a preset threshold, correcting the current pre-calibration film to be laminated according to the previous alignment compensation value, and then laminating it with the pre-calibration substrate until the alignment deviation of the pre-calibrated display panel after lamination is less than or equal to the preset threshold, wherein the alignment compensation value corresponding to the alignment deviation being less than or equal to the preset threshold is the updated alignment compensation value; wherein the current alignment deviation of the pre-calibrated display panel and the preset calibration weight are used to obtain the alignment compensation value of the next pre-calibration film to be laminated.

[0007] In one embodiment, obtaining the alignment deviation based on the image information of multiple display panels includes: determining the coordinate offset between the alignment mark of the substrate and the alignment mark of the thin film in each display panel based on the image information of the multiple display panels; and determining the alignment deviation based on the distribution of the coordinate offsets.

[0008] In one embodiment, the coordinate offset includes the absolute value and direction of the offset between the alignment mark of the substrate and the alignment mark of the thin film in the same display panel.

[0009] In one embodiment, the alignment deviation includes X-axis deviation, Y-axis deviation, and angle deviation. Before obtaining the alignment compensation value based on the alignment deviation and preset calibration weight, the method further includes: comparing the X-axis deviation, the Y-axis deviation, and the angle deviation with corresponding preset thresholds for the X-axis, Y-axis, and angle, respectively; if any comparison result does not meet the preset conditions, performing the step of obtaining the alignment compensation value based on the alignment deviation and preset calibration weight.

[0010] An alignment system, the device comprising:

[0011] A lamination device is used to laminate a thin film to a substrate;

[0012] An imaging device for acquiring image information of multiple display panels, wherein the display panels are formed by laminating a substrate and a thin film;

[0013] An optical inspection device, connected to the imaging device, is used to determine the alignment deviation of the display panel based on image information from multiple display panels. The alignment deviation is the coordinate deviation between the alignment mark of the substrate and the alignment mark of the thin film.

[0014] The processor, connected to both the optical detection device and the pressing device, is used to obtain an alignment compensation value based on the alignment deviation and a preset calibration weight; and to control the pressing device to correct the pose of the film to be pressed based on the alignment compensation value. In one embodiment,

[0015] An alignment device, the device comprising:

[0016] The deviation acquisition module is used to acquire the alignment deviation based on the image information of multiple display panels. The display panels are formed by laminating a substrate and a thin film. The alignment deviation is the coordinate deviation between the alignment mark of the substrate and the alignment mark of the thin film.

[0017] The compensation determination module is used to obtain the alignment compensation value based on the alignment deviation and the preset calibration weight;

[0018] A correction module is used to control the pressing device to correct the pose of the film to be pressed based on the alignment compensation value. In one embodiment,

[0019] A computer device includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to perform the following steps: obtaining alignment deviations based on image information from multiple display panels, wherein the display panels are formed by laminating a substrate and a thin film, and the alignment deviations are coordinate deviations between alignment marks on the substrate and alignment marks on the thin film; obtaining alignment compensation values ​​based on the alignment deviations and preset calibration weights; and controlling a laminating device to correct the pose of the thin film to be laminated based on the alignment compensation values.

[0020] A computer-readable storage medium storing a computer program thereon, the computer program being executed by a processor to perform the following steps: obtaining alignment deviations based on image information of multiple display panels, the display panels being formed by laminating a substrate and a thin film, the alignment deviations being coordinate deviations between alignment marks on the substrate and alignment marks on the thin film; obtaining alignment compensation values ​​based on the alignment deviations and preset calibration weights; and controlling a laminating device to correct the pose of the thin film to be laminated based on the alignment compensation values.

[0021] The above-mentioned alignment method, alignment system and apparatus, computer equipment, and storage medium. First, alignment deviation is obtained based on image information from multiple display panels. The display panels are formed by laminating a substrate and a thin film. The alignment deviation is the coordinate deviation between the alignment marks on the substrate and the alignment marks on the thin film. This reveals the alignment deviation present in the current alignment process of the display panels, facilitating subsequent optimization of the alignment process. Then, an alignment compensation value is obtained based on the alignment deviation and a preset calibration weight. This allows for the determination of the alignment compensation value, facilitating thin film correction and improving the accuracy of the alignment process. Furthermore, by setting a preset calibration coefficient, it can be adjusted according to the specifications of the alignment system, ensuring the alignment compensation value remains within a suitable range and avoiding over-correction. Finally, the alignment compensation value is used to control the lamination device to adjust the pose of the thin film to be laminated, thereby correcting the pose of the thin film. In summary, this application automatically identifies the alignment deviation in the current alignment process and automatically corrects the thin film to be laminated, improving the alignment accuracy during the lamination of the thin film and substrate. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 Here is a flowchart of the alignment method in one embodiment;

[0024] Figure 2 This is a schematic diagram illustrating the alignment of bit markers in one embodiment;

[0025] Figure 3 This is a schematic diagram illustrating misaligned bit markers in one embodiment;

[0026] Figure 4 This is a schematic diagram illustrating misaligned bit markers in another embodiment;

[0027] Figure 5 Here is a flowchart of the alignment method in another embodiment;

[0028] Figure 6 This is a flowchart of a method for updating alignment compensation values ​​in one embodiment;

[0029] Figure 7 This is a flowchart of a method for determining alignment deviation in one embodiment;

[0030] Figure 8 This is a flowchart illustrating a method for determining whether correction is needed in one embodiment;

[0031] Figure 9 This is a schematic diagram of the alignment system in one embodiment;

[0032] Figure 10 This is a structural diagram of the alignment device in one embodiment;

[0033] Figure 11 This is an internal structural diagram of a computer device in one embodiment.

[0034] Explanation of reference numerals in the attached drawings: 10-pressing device, 20-imaging device, 30-optical inspection device, 40-processor, 100-alignment mark of the thin film, 200-alignment mark of the substrate. Detailed Implementation

[0035] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0037] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “under,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0038] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. Furthermore, in the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if there is transmission of electrical signals or data between the connected objects.

[0039] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0040] In one embodiment, such as Figure 1 As shown, an alignment method is provided, which includes:

[0041] Step S100: Obtain the alignment deviation based on the image information from multiple display panels.

[0042] The display panel is formed by laminating a substrate and a thin film. The alignment deviation is the coordinate deviation between the alignment marks on the substrate and the alignment marks on the thin film. Specifically, image information of multiple display panels is acquired, and then the alignment marks on the substrate and the thin film are identified from the image information. The coordinates of the alignment marks on the substrate and the thin film are determined in a preset coordinate system, and then the coordinate deviation between the alignment marks on the substrate and the thin film is determined. For example, the alignment deviation can be determined by processing the image information using an Automated Optical Inspection (AOI) device. The alignment deviation includes the deviation distance between the alignment marks on the thin film and the pre-planned alignment marks on the substrate in the X-axis direction, the deviation distance in the Y-axis direction, and the angular deviation of the alignment marks on the thin film and the alignment marks on the substrate in terms of orientation. The alignment deviation is a vector, including the absolute value and direction of the deviation distance between the alignment marks on the thin film and the pre-planned alignment marks on the substrate, and the absolute value and direction of the angular deviation of the alignment marks on the thin film and the alignment marks on the substrate in terms of orientation.

[0043] For example, the film is a flip-chip film, obtained by attaching an integrated circuit to a flexible circuit board. The film can also be a flexible add-on circuit board without encapsulated chips.

[0044] For example, such as Figure 2 As shown, the alignment mark 100 of the thin film is perfectly aligned with the alignment mark 200 of the substrate, with an alignment deviation of 0. Figure 3 As shown, there is a certain deviation between the alignment mark 100 of the thin film and the alignment mark 200 of the substrate, indicating misalignment. Figure 4 As shown, there is a certain angular deviation between the alignment mark 100 of the thin film and the alignment mark 200 of the substrate, indicating misalignment.

[0045] Step S110: Obtain the alignment compensation value based on the alignment deviation and the preset calibration weight.

[0046] For example, the alignment compensation value can be obtained by multiplying the alignment deviation by a preset calibration weight.

[0047] For example, the preset calibration weight can be determined according to the specifications of the equipment used during alignment, so that the obtained alignment compensation value can be controlled within a suitable range.

[0048] For example, the preset calibration weight is between 0 and 0.3.

[0049] Step S120: The positioning of the film to be pressed is corrected by controlling the pressing device according to the alignment compensation value.

[0050] Specifically, after determining the alignment compensation value, the pressing device is controlled to adjust the position and orientation of the new film to be pressed next, based on the alignment compensation value.

[0051] For example, the pressing device may consist of an Outer Lead Bonding (OLB) machine and a servo motor driver.

[0052] In this embodiment, the alignment deviation is first obtained based on image information from multiple display panels. The display panels are formed by laminating a substrate and a thin film. The alignment deviation is the coordinate deviation between the alignment marks on the substrate and the alignment marks on the thin film. This reveals the alignment deviation in the current alignment process of the display panels, facilitating subsequent optimization of the alignment process. Then, an alignment compensation value is obtained based on the alignment deviation and a preset calibration weight. This allows for the determination of the alignment compensation value, facilitating thin film correction and improving the accuracy of the alignment process. Furthermore, by setting a preset calibration coefficient, the coefficient can be adjusted according to the specifications or process precision of the equipment used to perform the alignment method (e.g., a laminating device), ensuring the alignment compensation value remains within a suitable range and avoiding over-correction. Finally, the alignment compensation value is used to control the laminating device to adjust the pose of the thin film to be laminated, thus correcting the pose of the film. In summary, this method automatically identifies the alignment deviation in the current alignment process and automatically corrects the thin film to be laminated, improving the alignment accuracy during the lamination of the thin film and substrate.

[0053] In one embodiment, such as Figure 5 As shown, the alignment method further includes: step S130, updating the alignment compensation value, and controlling the pressing device to correct the pose of the film to be pressed according to the updated alignment compensation value.

[0054] In this embodiment, the alignment compensation value can be updated according to the actual alignment deviation of the display panel, and the updated alignment compensation value is used to control the bonding device to correct the position of the film to be bonded, thereby making the alignment of the film and the substrate more accurate.

[0055] In one embodiment, such as Figure 6 As shown, step S130, updating the alignment compensation value, specifically includes:

[0056] Step S1301: When the alignment compensation value is greater than the preset threshold, the pre-calibration film to be pressed is corrected according to the previous alignment compensation value, and then pressed with the pre-calibration substrate.

[0057] Step S1302: Determine whether the alignment deviation of the pre-calibrated display panel after lamination is less than or equal to a preset threshold. If the alignment deviation of the pre-calibrated display panel after lamination is less than or equal to the preset threshold, proceed to step S1304, using the alignment compensation value corresponding to the pre-calibrated display panel with an alignment deviation less than or equal to the preset threshold as the updated alignment compensation value. If the alignment deviation of the pre-calibrated display panel after lamination is greater than the preset threshold, proceed to step S1303, determining the alignment compensation value of the next pre-calibrated film to be laminated based on the alignment deviation of the pre-calibrated display panel after lamination and the preset calibration weight. After proceeding to step S1303, return to step S1301 until the alignment deviation of the pre-calibrated display panel is less than or equal to the preset threshold.

[0058] For example, when the alignment deviation of the i-th pre-calibrated display panel is greater than a preset threshold, the alignment compensation value of the (i+1)-th pre-calibrated film is determined based on the alignment deviation of the i-th pre-calibrated display panel and a preset calibration weight. The alignment compensation value of the (i+1)-th pre-calibrated film is used to calibrate the (i+1)-th pre-calibrated film before lamination. If the alignment deviation of the (i+1)-th pre-calibrated display panel is still greater than the preset threshold, the above steps are repeated to calibrate the (i+2)-th pre-calibrated display panel, and so on, until the alignment deviation of the pre-calibrated display panel after lamination is less than or equal to the preset threshold.

[0059] Specifically, the alignment compensation value calculated based on the image information of the previous display panel processed by the laminating device is used to correct the film to be laminated in the current laminating device. Then, the film is laminated with the substrate to obtain a pre-corrected display panel after lamination. This process is repeated, and the alignment compensation value calculated based on the image information of the current pre-corrected display panel is used as the alignment compensation value for the next pre-corrected film and substrate, until the alignment deviation of the pre-corrected display panel after lamination is less than or equal to a preset threshold. At this point, the alignment accuracy of the display panel meets the requirements. The alignment compensation value corresponding to the alignment deviation being less than or equal to the preset threshold can be used as the updated alignment compensation value. Using the updated alignment compensation value in the laminating device ensures that the display panel laminated by the laminating device meets the alignment accuracy requirements.

[0060] For example, taking the angle deviation in the alignment compensation value as an example, if the angle deviation in the alignment compensation value calculated based on the image information of the first set of display panels is 3°, then the pressing device is controlled to adjust the angle of the film to be pressed by 3° before pressing it with the substrate to form the second set of display panels. Then, if the angle deviation calculated based on the image information of the second set of display panels is 2°, then the pressing device is controlled to adjust the angle of the film to be pressed by 2° before pressing it with the substrate to form the third set of display panels, and so on, until the angle deviation calculated based on the image information of a certain set of display panels is 0°, or less than a preset angle threshold. This completes the calibration of the pressing device.

[0061] In this embodiment, a display panel is obtained by laminating a thin film to a substrate. The alignment deviation of the display panel is then assessed. If it does not meet the standard, an alignment compensation value is used to adjust the lamination device until the alignment deviation of the display panel meets the standard. This achieves closed-loop control of the lamination device, enabling it to automatically correct itself until the alignment accuracy requirements are met, thus improving the precision and stability of the alignment process. Furthermore, during this closed-loop control process, a preset calibration weight is set to display the step size of each adjustment, achieving incremental adjustment of the lamination device. The lamination device is gradually compensated until it can control the alignment deviation of the display panel to be less than or equal to a preset threshold, thereby avoiding over-correction and improving the accuracy of the correction.

[0062] In one embodiment, such as Figure 7 As shown, step S100 involves obtaining the alignment deviation based on image information from multiple display panels. This includes:

[0063] Step S700: Based on the image information of multiple display panels, determine the coordinate offset between the alignment mark of the substrate and the alignment mark of the thin film in each display panel.

[0064] Specifically, based on the image information of multiple display panels, the coordinate offset between the alignment mark of the substrate and the alignment mark of the thin film in each display panel can be determined.

[0065] For example, a computer or tester can randomly select 20 sets of 20 display panels formed by laminating thin films and substrates, and then take pictures of these 20 display panels to obtain image information. Based on the image information of the 20 display panels, the coordinate offset data between the alignment marks of multiple substrates and the alignment marks of the thin films can be obtained.

[0066] Step S710: Determine the alignment deviation based on the distribution of each coordinate offset.

[0067] Specifically, based on the distribution of each coordinate offset, the coordinate offsets with concentrated distribution are selected to determine the alignment deviation.

[0068] For example, a computer can plot a normal distribution curve of multiple coordinate offsets and select the values ​​in the distribution set as the alignment deviation.

[0069] Optionally, the computer can also calculate the average of multiple coordinate offsets as the alignment deviation.

[0070] In this embodiment, a large number of display panel coordinate offsets are tested, thereby increasing the sample data volume of alignment deviations. This allows for more accurate alignment deviations to be obtained through large-scale statistical analysis. Then, the alignment deviation is determined based on the coordinate offsets of multiple display panels. Because the values ​​are selected from a concentrated distribution of multiple coordinate offsets, the obtained alignment deviation has better universality, is applicable to more display panels, and is closest to the actual alignment deviation of display panels. This eliminates the influence of process errors between different display panels, facilitating precise adjustment of the pose of the film to be laminated.

[0071] In one embodiment, the coordinate offset includes the absolute value and direction of the offset between the alignment mark of the substrate and the alignment mark of the thin film in the same display panel.

[0072] In this embodiment, the coordinate offset includes the absolute value of the offset and the direction of the offset, which facilitates the determination of the correct adjustment method of the pressing device, enabling the pressing device to be adjusted according to the correct distance and direction, thereby improving the alignment accuracy of the pressing device.

[0073] In one embodiment, such as Figure 8 As shown, the alignment deviation includes X-axis deviation, Y-axis deviation, and angular deviation. Before obtaining the alignment compensation value based on the alignment deviation and the preset calibration weight in step S110, the alignment method further includes:

[0074] Step S800: Compare the X-axis deviation, Y-axis deviation, and angle deviation with the corresponding preset thresholds for the X-axis, Y-axis, and angle, respectively.

[0075] Specifically, the X-axis and Y-axis are perpendicular to each other on the plane of the substrate.

[0076] Step S810: Determine whether the comparison results of X-axis deviation, Y-axis deviation, and angle deviation all meet the preset conditions. If any comparison result does not meet the preset conditions, proceed to step S110 to obtain the alignment compensation value based on the alignment deviation and preset calibration weight. If the comparison results of X-axis deviation, Y-axis deviation, and angle deviation all meet the preset conditions, it means that the display panel has been aligned, and the process ends.

[0077] Specifically, preset thresholds for the X-axis, Y-axis, and angle are established. When the X-axis deviation, Y-axis deviation, and angle deviation are less than or equal to their respective preset thresholds, the alignment deviation is considered less than the preset threshold, meaning the alignment accuracy of the display panel meets the requirements. No alignment compensation value is needed to adjust the pressing device. However, if any of the X-axis deviation, Y-axis deviation, or angle deviation exceeds its corresponding preset threshold, the alignment accuracy of the display panel is considered substandard, and an alignment compensation value needs to be calculated. When calculating the alignment compensation value, only the substandard X-axis deviation, Y-axis deviation, or angle deviation needs to be calculated.

[0078] In this embodiment, by comparing the X-axis deviation, Y-axis deviation, and angle deviation with the corresponding preset thresholds for the X-axis, Y-axis, and angle, respectively, it is possible to accurately determine whether the alignment accuracy of the display panel meets the standard. Then, based on the non-compliant items, the alignment compensation value is calculated to ensure that the alignment accuracy of the display panel meets the requirements, thereby achieving the correction of the alignment process of the display panel.

[0079] It should be understood that, although Figure 1 , 5 The steps in flowchart -8 are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order requirement for the execution of these steps, and they can be executed in other orders. Furthermore, Figure 1 , 5 At least some of the steps in -8 may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily sequential, but may be executed in turn or alternately with other steps or at least some of the steps or stages in other steps.

[0080] In one embodiment, such as Figure 9 As shown, an alignment system is provided, comprising: a pressing device 10, an imaging device 20, an optical inspection device 30, and a processor 40. Wherein:

[0081] The pressing device 10 is used to press the film onto the substrate.

[0082] For example, the bonding apparatus 10 may include an Outer Lead Bonding (OLB) machine and a servo motor driver. The OLB machine is provided with a station for fixing the thin film, and can adjust the position of the thin film and bond it to the substrate under the drive of the servo electrode to obtain a display panel.

[0083] The imaging device 20 is used to acquire image information of multiple display panels, which are formed by laminating a substrate and a thin film.

[0084] For example, the imaging device 20 can be a charge-coupled device (CCD) camera or an industrial camera.

[0085] The optical inspection device 30 is connected to the imaging device 20 and is used to determine the alignment deviation of the display panel based on the image information of multiple display panels. The alignment deviation is the coordinate deviation between the alignment mark of the substrate and the alignment mark of the thin film.

[0086] For example, alignment deviations can be determined by processing image information using Automated Optical Inspection (AOI) equipment. AOI equipment is a mature inspection tool used on production lines, effectively detecting the quality of display panel mounting, thereby enabling quality control of display panels and identifying defective products.

[0087] The processor 40 is connected to the optical detection device 30 and the pressing device 10 respectively, and is used to obtain the alignment compensation value according to the alignment deviation and the preset calibration weight; and to control the pressing device 10 to correct the pose of the film to be pressed according to the alignment compensation value.

[0088] Specifically, the processor 40 can receive the alignment deviation obtained by the optical detection device 30, and then calculate the alignment compensation value according to the preset calibration weight in the processor 40. Then, according to the alignment compensation value, it controls the pressing device 10 to adjust the pose of the film to be pressed, thus realizing the correction of the pose of the film to be pressed.

[0089] In this embodiment, image information of the display panel is first acquired using an imaging device. Then, an optical inspection device obtains the alignment deviation based on the image information of multiple display panels. The display panel is formed by laminating a substrate and a thin film; the alignment deviation is the coordinate deviation between the alignment marks on the substrate and the alignment marks on the thin film. This reveals the alignment deviation present in the current alignment process of the display panel, facilitating subsequent optimization of the alignment process based on the alignment deviation. Next, the processor obtains an alignment compensation value based on the alignment deviation and a preset calibration weight. This allows for the determination of the alignment compensation value, facilitating thin film correction and improving the accuracy of the alignment process. Furthermore, by setting a preset calibration coefficient, the preset calibration coefficient can be adjusted according to the specifications of the alignment system, ensuring the alignment compensation value remains within a suitable range and avoiding over-correction. Then, the lamination device is controlled to adjust the pose of the thin film to be laminated based on the alignment compensation value, thereby correcting the pose of the thin film to be laminated. In summary, this method automatically identifies the alignment deviation in the current alignment process and automatically corrects the thin film to be laminated, improving the alignment accuracy during the lamination of the thin film and substrate.

[0090] In one embodiment, such as Figure 10 As shown, an alignment device is provided, comprising: a deviation acquisition module 1001, a compensation determination module 1002, and a correction module 1003. Wherein:

[0091] The deviation acquisition module 1001 is used to acquire the alignment deviation based on the image information of multiple display panels. The display panels are formed by laminating a substrate and a thin film. The alignment deviation is the coordinate deviation between the alignment mark of the substrate and the alignment mark of the thin film.

[0092] The compensation determination module 1002 is used to obtain the alignment compensation value based on the alignment deviation and the preset calibration weight.

[0093] The correction module 1003 is used to control the pressing device to correct the position and orientation of the film to be pressed according to the alignment compensation value.

[0094] In one embodiment, the alignment device further includes an update module for updating the alignment compensation value and controlling the pressing device to correct the orientation of the film to be pressed based on the updated alignment compensation value.

[0095] In one embodiment, the updating module further includes: a correction unit, used to correct and press the currently pre-corrected film and substrate according to the previous alignment compensation value, until the alignment deviation of the pre-corrected display panel after the pressing process is less than or equal to a preset threshold, and the alignment compensation value corresponding to the alignment deviation being less than or equal to the preset threshold is the updated alignment compensation value.

[0096] In one embodiment, the deviation acquisition module 1001 includes: an offset determination unit and a deviation determination unit.

[0097] in:

[0098] The offset determination unit is used to determine the coordinate offset between the alignment mark of the substrate and the alignment mark of the thin film in each display panel based on the image information of multiple display panels.

[0099] The deviation determination unit is used to determine the alignment deviation based on the distribution of each coordinate offset.

[0100] For specific limitations regarding the alignment device, please refer to the limitations of the alignment method above, which will not be repeated here. Each module in the aforementioned alignment device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module. It should be noted that the module division in this embodiment is illustrative and only represents a logical functional division; other division methods may be used in actual implementation.

[0101] In one embodiment, a computer device is provided, the internal structure of which can be shown in the following diagram. Figure 11 As shown, the computer device includes a processor, memory, and a network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements a bitwise method.

[0102] Those skilled in the art will understand that Figure 11 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0103] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0104] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps in the above method embodiments.

[0105] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0106] In the description of this specification, references to terms such as "some embodiments," "other embodiments," and "ideal embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0107] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0108] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An aligning method, characterized by, The method includes: The alignment deviation is obtained based on the image information of multiple display panels, wherein the display panels are formed by laminating a substrate and a thin film, and the alignment deviation is the coordinate deviation between the alignment mark of the substrate and the alignment mark of the thin film. The alignment compensation value is obtained based on the alignment deviation and the preset calibration weight; When the alignment compensation value is less than a preset threshold, the pressing device is controlled to correct the pose of the film to be pressed according to the alignment compensation value. When the alignment compensation value is greater than a preset threshold, the pre-calibrated film to be pressed is calibrated according to the previous alignment compensation value, and then pressed with the pre-calibrated substrate until the alignment deviation of the pre-calibrated display panel after pressing is less than or equal to the preset threshold. The alignment compensation value corresponding to the alignment deviation being less than or equal to the preset threshold is the updated alignment compensation value. The current alignment deviation of the pre-calibrated display panel and the preset calibration weight are used to obtain the alignment compensation value of the next pre-calibrated film to be pressed. The pressing device is controlled to correct the pose of the film to be pressed according to the updated alignment compensation value.

2. The method of claim 1, wherein, The step of obtaining alignment deviation based on image information from multiple display panels includes: Based on image information from multiple display panels, determine the coordinate offset between the alignment mark of the substrate and the alignment mark of the thin film in each display panel; The alignment deviation is determined based on the distribution of each coordinate offset.

3. The method of claim 2, wherein, The coordinate offset includes the absolute value and direction of the offset between the alignment mark of the substrate and the alignment mark of the thin film in the same display panel.

4. The method according to claim 1, characterized in that, The alignment deviation includes X-axis deviation, Y-axis deviation, and angular deviation. Before obtaining the alignment compensation value based on the alignment deviation and the preset calibration weight, the method further includes: The X-axis deviation, the Y-axis deviation, and the angle deviation are compared with the corresponding preset thresholds for the X-axis, Y-axis, and angle, respectively. If any comparison result does not meet the preset conditions, the step of obtaining the alignment compensation value based on the alignment deviation and the preset calibration weight is executed.

5. An alignment system, characterized in that, The alignment system includes: A lamination device is used to laminate a thin film to a substrate; An imaging device for acquiring image information of multiple display panels, wherein the display panels are formed by laminating a substrate and a thin film; An optical inspection device, connected to the imaging device, is used to determine the alignment deviation of the display panel based on image information from multiple display panels. The alignment deviation is the coordinate deviation between the alignment mark of the substrate and the alignment mark of the thin film. The processor, connected to the optical detection device and the pressing device respectively, is used to obtain an alignment compensation value based on the alignment deviation and a preset calibration weight; when the alignment compensation value is less than a preset threshold, the processor controls the pressing device to correct the pose of the film to be pressed based on the alignment compensation value; when the alignment compensation value is greater than the preset threshold, the processor corrects the current pre-calibrated film to be pressed based on the previous alignment compensation value, and then presses it with the pre-calibrated substrate until the alignment deviation of the pre-calibrated display panel after pressing is less than or equal to the preset threshold, and the alignment compensation value corresponding to the alignment deviation being less than or equal to the preset threshold is the updated alignment compensation value; wherein, the current alignment deviation of the pre-calibrated display panel and the preset calibration weight are used to obtain the alignment compensation value of the next pre-calibrated film to be pressed; the processor controls the pressing device to correct the pose of the film to be pressed based on the updated alignment compensation value.

6. An alignment device, characterized in that, The device includes: The deviation acquisition module is used to acquire the alignment deviation based on the image information of multiple display panels. The display panels are formed by laminating a substrate and a thin film. The alignment deviation is the coordinate deviation between the alignment mark of the substrate and the alignment mark of the thin film. The compensation determination module is used to obtain the alignment compensation value based on the alignment deviation and the preset calibration weight; The calibration module is used to control the pressing device to correct the pose of the film to be pressed according to the alignment compensation value when the alignment compensation value is less than a preset threshold; when the alignment compensation value is greater than the preset threshold, the current pre-calibrated film to be pressed is corrected according to the previous alignment compensation value, and then pressed with the pre-calibrated substrate until the alignment deviation of the pre-calibrated display panel after pressing is less than or equal to the preset threshold, and the alignment compensation value corresponding to the alignment deviation being less than or equal to the preset threshold is the updated alignment compensation value; wherein, the current alignment deviation of the pre-calibrated display panel and the preset calibration weight are used to obtain the alignment compensation value of the next pre-calibrated film to be pressed; and the pressing device is controlled to correct the pose of the film to be pressed according to the updated alignment compensation value.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the alignment method according to any one of claims 1 to 4.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the alignment method according to any one of claims 1 to 4.

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