CN115631110A - Alignment method, alignment system and apparatus, computer device, and storage medium - Google Patents
Alignment method, alignment system and apparatus, computer device, and storage medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000003860 storage Methods 0.000 title claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 75
- 238000010030 laminating Methods 0.000 claims abstract description 44
- 238000003825 pressing Methods 0.000 claims abstract description 30
- 238000012937 correction Methods 0.000 claims description 30
- 238000004590 computer program Methods 0.000 claims description 15
- 230000003287 optical effect Effects 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 7
- 239000010408 film Substances 0.000 description 89
- 239000010409 thin film Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
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Abstract
The application relates to a contraposition method, a contraposition system, a contraposition device, computer equipment and a storage medium. The method comprises the following steps: acquiring alignment deviation according to image information of a plurality of display panels, wherein the display panels are formed by laminating a substrate and a film, and the alignment deviation is coordinate deviation between alignment marks of the substrate and alignment marks of the film; acquiring a contraposition compensation value according to the contraposition deviation and a preset calibration weight; and controlling a pressing device to correct the pose of the film to be pressed according to the alignment compensation value. The method can automatically identify the alignment deviation of the current alignment process, automatically correct the film to be laminated and improve the alignment precision when the film is laminated with the substrate.
Description
Technical Field
The present application relates to the field of optical product processing technologies, and in particular, to a method, a system, and a device for alignment, a computer device, and a storage medium.
Background
With the development of display technology, the performance of display panels is required to be higher and higher, and in order to improve the performance of display panels, the precision of the manufacturing process of display panels needs to be improved, and during the manufacturing and assembling process of display panels, one of the important steps is to bond a Chip On Film (COF) on the wiring region of a substrate. However, when the thin film is pressed on the wiring area of the substrate, the thin film and the substrate are usually offset, and the thin film and the wiring area of the substrate may have poor conduction, which may affect the performance of the display panel. Therefore, how to improve the alignment accuracy when the film and the substrate are laminated is a problem to be solved at present.
Disclosure of Invention
In view of the above, it is desirable to provide a method, a system and an apparatus for aligning, a computer device, and a storage medium, which can improve the accuracy of alignment between a thin film and a substrate.
A method of aligning, the method comprising: acquiring alignment deviation according to image information of a plurality of display panels, wherein the display panels are formed by laminating a substrate and a film, and the alignment deviation is coordinate deviation between alignment marks of the substrate and alignment marks of the film; acquiring a counterpoint compensation value according to the counterpoint deviation and a preset calibration weight; and controlling a laminating device to correct the pose of the film to be laminated according to the alignment compensation value.
In one embodiment, the method further comprises: and updating the alignment compensation value, and controlling a pressing device to correct the pose of the film to be pressed according to the updated alignment compensation value.
In one embodiment, the updating the alignment compensation value includes: when the alignment compensation value is larger than a preset threshold value, correcting the pre-correction film to be pressed currently according to the previous alignment compensation value, and then performing pressing treatment on the pre-correction film and the pre-correction substrate until the alignment deviation of the pre-correction display panel after pressing treatment is smaller than or equal to the preset threshold value, wherein the alignment compensation value corresponding to the alignment deviation smaller than or equal to the preset threshold value is an updated alignment compensation value; the current alignment deviation of the pre-correction display panel and the preset calibration weight are used for obtaining an alignment compensation value of a next pre-correction film to be pressed.
In one embodiment, the acquiring the alignment deviation according to the image information of the plurality of display panels includes: determining coordinate offset between the alignment marks of the substrate and the alignment marks of the film in each display panel according to image information of the display panels; and determining the alignment deviation according to the distribution state of each coordinate offset.
In one embodiment, the coordinate offset includes: and the absolute value and the offset direction of the offset between the alignment mark of the substrate and the alignment mark of the film in the same display panel.
In one embodiment, the alignment deviation includes an X-axis deviation, a Y-axis deviation, and an angle deviation, and before the acquiring the alignment compensation value according to the alignment deviation and the preset calibration weight, the method further includes: comparing the X-axis deviation, the Y-axis deviation and the angle deviation with corresponding X-axis preset threshold, Y-axis preset threshold and angle preset threshold respectively; and under the condition that any comparison result does not accord with a preset condition, executing the step of acquiring the alignment compensation value according to the alignment deviation and the preset calibration weight.
An alignment system, the apparatus comprising:
the laminating device is used for laminating the film and the substrate;
the shooting device is used for acquiring image information of a plurality of display panels, and the display panels are formed by pressing a substrate and a film;
the optical detection device is connected with the shooting device and used for determining the alignment deviation of the display panels according to the image information of the display panels, wherein the alignment deviation is the coordinate deviation between the alignment mark of the substrate and the alignment mark of the film;
the processor is respectively connected with the optical detection device and the pressing device and is used for acquiring an alignment compensation value according to the alignment deviation and a preset calibration weight; and controlling the pressing device to correct the pose of the film to be pressed according to the alignment compensation value. In one of the embodiments, the first and second electrodes are,
an alignment device, the device comprising:
the deviation acquiring module is used for acquiring alignment deviation according to image information of a plurality of display panels, the display panels are formed by laminating a substrate and a film, and the alignment deviation is coordinate deviation between alignment marks of the substrate and alignment marks of the film;
the compensation determining module is used for acquiring an alignment compensation value according to the alignment deviation and a preset calibration weight;
and the correction module is used for controlling the pressing device to correct the pose of the film to be pressed according to the alignment compensation value. In one of the embodiments, the first and second electrodes are,
a computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program: acquiring alignment deviation according to image information of a plurality of display panels, wherein the display panels are formed by laminating a substrate and a film, and the alignment deviation is coordinate deviation between alignment marks of the substrate and alignment marks of the film; acquiring a contraposition compensation value according to the contraposition deviation and a preset calibration weight; and controlling a laminating device to correct the pose of the film to be laminated according to the alignment compensation value.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of: acquiring alignment deviation according to image information of a plurality of display panels, wherein the display panels are formed by laminating a substrate and a film, and the alignment deviation is coordinate deviation between alignment marks of the substrate and alignment marks of the film; acquiring a counterpoint compensation value according to the counterpoint deviation and a preset calibration weight; and controlling a laminating device to correct the pose of the film to be laminated according to the alignment compensation value.
The alignment method, the alignment system and device, the computer equipment and the storage medium are provided. The method comprises the steps of firstly obtaining alignment deviation according to image information of a plurality of display panels, wherein the display panels are formed by laminating a substrate and a film, and the alignment deviation is coordinate deviation between alignment marks of the substrate and the film, so that the alignment deviation existing in the alignment process of the current display panel is obtained, and the alignment process of the display panels is optimized according to the alignment deviation. Then obtain the alignment compensation value according to alignment deviation and preset calibration weight to can confirm the alignment compensation value, be convenient for rectify the film, thereby improve the accuracy of alignment technology, and through setting up preset calibration coefficient, can adjust preset calibration coefficient according to the specification of alignment system etc. thereby make the alignment compensation value can be in a suitable within range, avoid rectifying excessively. And then controlling the laminating device to adjust the pose of the film to be laminated according to the alignment compensation value, so as to realize the correction of the pose of the film to be laminated. In conclusion, by the mode of the application, the alignment deviation of the current alignment process can be automatically identified, the film to be laminated is automatically corrected, and the alignment precision when the film and the substrate are laminated is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of an alignment method according to an embodiment;
FIG. 2 is a diagram illustrating alignment of alignment marks in one embodiment;
FIG. 3 is a diagram illustrating misalignment of alignment marks in one embodiment;
FIG. 4 is a schematic diagram of another embodiment of misalignment of alignment marks;
FIG. 5 is a flow chart of a method of alignment according to another embodiment;
FIG. 6 is a flow diagram of a method for updating alignment compensation values in one embodiment;
FIG. 7 is a flow diagram of a method for determining alignment deviation in one embodiment;
FIG. 8 is a flowchart illustrating a method for determining whether calibration is required in one embodiment;
FIG. 9 is a schematic diagram of an embodiment of a registration system;
FIG. 10 is a block diagram of an alignment device in one embodiment;
FIG. 11 is a diagram illustrating an internal structure of a computer device in one embodiment.
Description of the reference numerals: 10-a laminating device, 20-a shooting device, 30-an optical detection device, 40-a processor, 100-a film alignment mark and 200-a substrate alignment mark.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, 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 in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Spatially relative terms, such as "under," "below," "beneath," "under," "above," "over," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "under" can encompass both an orientation of above and below. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
In one embodiment, as shown in fig. 1, there is provided a method of aligning, the method comprising:
in step S100, alignment deviations are obtained from image information of the plurality of display panels.
The display panel is formed by pressing a substrate and a film, and the alignment deviation is coordinate deviation between an alignment mark of the substrate and an alignment mark of the film. Specifically, image information of a plurality of display panels is acquired, alignment marks of the substrate and alignment marks of the thin film are identified in the image information, coordinates of the alignment marks of the substrate and the alignment marks of the thin film are respectively determined under a preset coordinate system, and then coordinate deviation between the alignment marks of the substrate and the alignment marks of the thin film is determined. Illustratively, the alignment deviation may be determined by processing the image information with an Automated Optical Inspection (AOI) device. The alignment deviation comprises a deviation distance of the alignment mark of the film and a pre-planned alignment mark on the substrate in the X-axis direction, a deviation distance in the Y-axis direction, and an angle deviation of the alignment mark of the film and the alignment mark of the substrate in the posture. The alignment deviation is a vector including an absolute value of a deviation distance between the alignment mark of the thin film and a previously planned alignment mark on the substrate and a direction of a deviation, and an absolute value of an angular deviation between the alignment mark of the thin film and the alignment mark of the substrate in terms of posture and a direction of the deviation.
Illustratively, the film is a chip on film, obtained by mounting an integrated circuit on a flexible wiring board. The film may also be a flexible additional circuit board that does not encapsulate the chip.
For example, as shown in fig. 2, the alignment mark 100 of the thin film is completely aligned with the alignment mark 200 of the substrate, and the alignment deviation is 0. As shown in fig. 3, the alignment mark 100 of the film and the alignment mark 200 of the substrate are misaligned with each other by a certain offset distance. As shown in fig. 4, the alignment mark 100 of the thin film and the alignment mark 200 of the substrate are misaligned with each other by a certain angle.
And step S110, acquiring an alignment compensation value according to the alignment deviation and a preset calibration weight.
Illustratively, the alignment offset is multiplied by a preset calibration weight to obtain an alignment compensation value.
For example, the preset calibration weight can be determined according to the specification of the equipment used in the alignment, so that the alignment compensation value can be controlled within a suitable range.
Illustratively, the preset calibration weight is between 0-0.3.
And S120, controlling the laminating device to correct the pose of the film to be laminated according to the alignment compensation value.
Specifically, after the alignment compensation value is determined, the pressing device is controlled according to the alignment compensation value to adjust the pose of a new film to be pressed next.
For example, the Bonding apparatus may be composed of an Outer Lead Bonding (OLB) and a servo motor driver.
In this embodiment, first, a registration deviation is obtained according to image information of a plurality of display panels, where the display panels are formed by laminating a substrate and a film, and the registration deviation is a coordinate deviation between a registration mark of the substrate and a registration mark of the film, so that a registration deviation existing in a current registration process of the display panel is obtained, and it is convenient to subsequently optimize the registration process of the display panel according to the registration deviation. And the preset calibration coefficient is set, so that the preset calibration coefficient can be adjusted according to the specification or process precision of equipment (such as a pressing device) used for executing the alignment method, and the alignment compensation value can be in a proper range, and excessive correction is avoided. And then the pressing device is controlled to adjust the pose of the film to be pressed according to the alignment compensation value, so that the pose of the film to be pressed is corrected. In conclusion, by the mode of the application, the alignment deviation of the current alignment process can be automatically identified, the film to be laminated is automatically corrected, and the alignment precision when the film and the substrate are laminated is improved.
In one embodiment, as shown in fig. 5, the alignment method further includes: and step S130, updating the alignment compensation value, and controlling the laminating device to correct the pose of the film to be laminated according to the updated alignment compensation value.
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 pressing device to correct the pose of the film to be pressed, so that the alignment between the film and the substrate is more accurate.
In an embodiment, as shown in fig. 6, in step S130, updating the alignment compensation value specifically includes:
step S1301, when the alignment compensation value is greater than the preset threshold, correcting the pre-corrected thin film to be laminated according to the previous alignment compensation value, and laminating the pre-corrected thin film and the pre-corrected substrate.
In step S1302, it is determined whether the alignment deviation of the pre-corrected display panel after the stitching process is smaller than or equal to a preset threshold. If the alignment deviation of the pre-corrected display panel after the stitching process is smaller than or equal to the preset threshold, step S1304 is executed, and the alignment compensation value corresponding to the pre-corrected display panel with the alignment deviation smaller than or equal to the preset threshold is used as the updated alignment compensation value. If the alignment deviation of the pre-corrected display panel after the pressing process is greater than the preset threshold, step S1303 is executed to determine an alignment compensation value of the next pre-corrected film to be pressed according to the alignment deviation of the pre-corrected display panel after the pressing process and the preset calibration weight. After step S1303 is executed, the process returns to step S1301 until the misalignment of the pre-corrected display panel is smaller than or equal to the preset threshold.
Illustratively, when the alignment deviation of the ith pre-correction display panel is greater than a preset threshold, the alignment compensation value of the (i + 1) th pre-correction film is determined according to the alignment deviation of the ith pre-correction display panel and the preset calibration weight. And (3) adopting the alignment compensation value of the (i + 1) th pre-correction film to correct the (i + 1) th pre-correction film and then laminating the film, if the alignment deviation of the (i + 1) th pre-correction display panel is still larger than a preset threshold value, continuously correcting the (i + 2) th pre-correction display panel according to the steps, and repeating the steps until the alignment deviation of the pre-correction display panel after lamination processing is smaller than or equal to the preset threshold value.
Specifically, the film to be laminated currently by the laminating device is corrected according to the alignment compensation value calculated according to the image information of the previous display panel processed by the laminating device, then the film and the substrate are laminated to obtain the pre-corrected display panel after the laminating processing, the action is repeated, and the alignment compensation value calculated according to the image information of the pre-corrected display panel after the current laminating processing is used as the alignment compensation value of the next pre-corrected film and the substrate until the alignment deviation of the pre-corrected display panel after the laminating processing is smaller than or equal to the preset threshold value. The alignment precision of the display panel at this time meets the requirement. And the alignment offset is smaller than or equal to the alignment compensation value corresponding to the preset threshold value at the moment, and the updated alignment compensation value can be used as an updated alignment compensation value, and the updated alignment compensation value is used on the pressing device, so that the display panel pressed by the pressing device can meet the requirement of alignment precision.
Illustratively, taking an angle deviation in the alignment compensation values as an example, if an angle deviation in the alignment compensation values calculated according to the image information of the first group of display panels is 3 °, controlling the laminating device to adjust the angle of the film to be laminated by 3 ° and then laminating the film with the substrate to form a second group of display panels, and then controlling the laminating device to adjust the angle of the film to be laminated by 2 ° and then laminating the film with the substrate to form a third group of display panels, and so on until the angle deviation calculated according to the image information of a certain group of display panels is 0 ° or is smaller than a preset angle threshold. The correction of the stitching device is completed.
In this embodiment, through obtaining display panel with film and base plate pressfitting to judge whether display panel's counterpoint deviation is up to standard, if not then adopt counterpoint compensation value to adjust compression fittings up to display panel's counterpoint deviation is up to standard, thereby realized the closed-loop control to compression fittings, make the correction that compression fittings can be automatic, up to satisfying the requirement of counterpoint precision, improved the accuracy and the stability of counterpoint technology. In the process of the closed-loop control, the step length of each adjustment is displayed by setting the preset calibration weight, the climbing adjustment of the pressing device is realized, the pressing device is gradually compensated until the alignment deviation of the display panel can be controlled to be less than or equal to the preset threshold value by the pressing device, so that the problem of excessive correction is avoided, and the correction precision is improved.
In one embodiment, as shown in fig. 7, in step S100, the alignment deviation is obtained according to the image information of the plurality of display panels. The method comprises the following steps:
step S700 is to determine a coordinate offset between the alignment mark of the substrate and the alignment mark of the film in each display panel according to the image information of the plurality of display panels.
Specifically, the coordinate shift amount between the alignment mark of the substrate and the alignment mark of the thin film in each display panel can be determined based on the image information of the plurality of display panels.
For example, a computer or a tester may randomly select 20 sets of 20 display panels formed by laminating films and substrates, and then photograph the 20 display panels to obtain image information, so that data of coordinate offsets between alignment marks of the substrates and alignment marks of the films can be obtained according to the image information of the 20 display panels.
Step S710, determining the alignment deviation according to the distribution state of the coordinate offsets.
Specifically, the coordinate offset amount distributed in a concentrated manner is selected to determine the registration deviation according to the distribution state of each coordinate offset amount.
For example, the computer may draw a normal distribution curve for a plurality of coordinate offsets, wherein the values in the distribution set are selected as the alignment deviations.
Alternatively, the computer may calculate an average value of the coordinate offsets as the alignment deviation.
In this embodiment, a large amount of coordinate offsets of the display panel are tested in a testing manner, so that the sample data size of the alignment offset is increased, and more accurate alignment offset can be obtained through statistics of big data. And then, according to the coordinate offset of the plurality of display panels, determining the alignment deviation, wherein the numerical values distributed in the plurality of coordinate offsets are selected, so that the obtained alignment deviation has better universality, is suitable for more display panels, is most close to the actual alignment deviation of the display panels, can eliminate the influence of process errors among different display panels, and is convenient for accurately adjusting the pose of the film to be laminated in the follow-up process.
In one embodiment, the coordinate offset comprises: and the absolute value and the offset direction of the offset between the alignment mark of the substrate and the alignment mark of the film in the same display panel.
In this embodiment, the coordinate offset includes an absolute value of the offset and a direction of the offset, so that a correct adjustment manner of the stitching device is determined, the stitching device can be adjusted according to a correct distance and a correct direction, and the alignment accuracy of the stitching device is improved.
In one embodiment, as shown in fig. 8, the alignment deviation includes an X-axis deviation, a Y-axis deviation and an angle deviation, and before acquiring the alignment compensation value according to the alignment deviation and the preset calibration weight in step S110, the alignment method further includes:
step S800, comparing the X-axis deviation, the Y-axis deviation and the angle deviation with the corresponding X-axis preset threshold, Y-axis preset threshold and angle preset threshold respectively.
Specifically, the X-axis and the Y-axis are perpendicular to each other in the plane of the substrate.
And step S810, judging whether the comparison results of the X-axis deviation, the Y-axis deviation and the angle deviation all accord with preset conditions. If any comparison result does not meet the preset condition, step S110 is executed to obtain an alignment compensation value according to the alignment deviation and the preset calibration weight. And if the comparison results of the X-axis deviation, the Y-axis deviation and the angle deviation all accord with preset conditions, indicating that the display panels are aligned, and ending the process.
Specifically, an X-axis preset threshold, a Y-axis preset threshold, and an angle preset threshold are preset, and when the X-axis deviation, the Y-axis deviation, and the angle deviation are respectively less than or equal to the corresponding X-axis preset threshold, Y-axis preset threshold, and angle preset threshold, it is determined that the alignment deviation is less than the preset threshold, that is, the alignment precision of the display panel at this time meets the requirement. The pressing device is adjusted without acquiring the alignment compensation value. And if any one of the X-axis deviation, the Y-axis deviation and the angle deviation is greater than the corresponding X-axis preset threshold, the Y-axis preset threshold and the angle preset threshold, indicating that the alignment precision of the display panel does not reach the standard, and calculating an alignment compensation value. When the alignment compensation value is calculated, only the alignment compensation value corresponding to one of the X-axis deviation, the Y-axis deviation and the angle deviation which does not reach the standard needs to be calculated.
In this embodiment, the X-axis deviation, the Y-axis deviation and the angle deviation are respectively compared with the corresponding X-axis preset threshold, the Y-axis preset threshold and the angle preset threshold, so as to accurately judge whether the alignment precision of the display panel reaches the standard, and then the alignment compensation value is calculated according to the non-standard items, so that the alignment precision of the display panel meets the requirement, and the alignment process of the display panel is corrected.
It should be understood that although the various steps in the flowcharts of fig. 1, 5-8 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1, 5-8 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps or stages.
In one embodiment, as shown in fig. 9, there is provided an alignment system, the apparatus comprising: the laminating device 10, the shooting device 20, the optical detection device 30 and the processor 40. Wherein:
the laminating device 10 is used for laminating the film and the substrate.
For example, the Bonding apparatus 10 may include an Outer Lead Bonding (OLB) and a servo motor driver. The welding press-fitting machine is provided with a station capable of fixing the film, and the position and posture of the film can be adjusted and pressed with the substrate under the driving of the servo electrode, so that the display panel is obtained.
The camera 20 is configured to obtain image information of a plurality of display panels, and the display panels are formed by laminating a substrate and a film.
Illustratively, the photographing Device 20 may be a Charge Coupled Device (CCD) camera, or an industrial camera.
And an optical detection device 30 connected to the imaging device 20, for determining the alignment deviation of the display panels based on the image information of the plurality of display panels, wherein the alignment deviation is the coordinate deviation between the alignment mark of the substrate and the alignment mark of the film.
Illustratively, the alignment deviation may be determined by processing the image information with an Automated Optical Inspection (AOI) device. The optical detection equipment is mature detection equipment on a production line, and can effectively detect the mounting quality of the display panel, so that the quality control of the display panel can be detected, and defective products can be found.
The processor 40 is respectively connected with the optical detection device 30 and the pressing device 10, and is used for acquiring an alignment compensation value according to the alignment deviation and the preset calibration weight; and controlling the pressing device 10 to correct the pose of the film to be pressed according to the alignment compensation value.
Specifically, the processor 40 can receive the alignment deviation obtained by the optical detection device 30, then can calculate an alignment compensation value according to a calibration weight preset in the processor 40, and then controls the laminating device 10 to adjust the pose of the film to be laminated according to the alignment compensation value, that is, the pose of the film to be laminated is corrected.
In the present embodiment, image information of the display panel is first acquired by the photographing device. And then the optical detection device acquires alignment deviation according to the image information of the plurality of display panels, wherein the display panels are formed by laminating the substrate and the film, and the alignment deviation is the coordinate deviation between the alignment mark of the substrate and the alignment mark of the film, so that the alignment deviation existing in the alignment process of the current display panel is obtained, and the subsequent alignment process of the display panel is optimized according to the alignment deviation. Then the treater acquires the alignment compensation value according to alignment deviation and preset calibration weight to can confirm the alignment compensation value, be convenient for rectify the film, thereby improve the accuracy of counterpoint technology, and predetermine the calibration coefficient through setting up, can adjust predetermineeing the calibration coefficient according to the specification of counterpoint system etc. thereby make the alignment compensation value can be in a suitable within range, avoid rectifying excessively. And then controlling the laminating device to adjust the pose of the film to be laminated according to the alignment compensation value, so as to realize the correction of the pose of the film to be laminated. In conclusion, by the mode of the application, the alignment deviation of the current alignment process can be automatically identified, the film to be laminated is automatically corrected, and the alignment precision when the film and the substrate are laminated is improved.
In one embodiment, as shown in fig. 10, there is provided an aligning apparatus, comprising: a deviation acquisition module 1001, a compensation determination module 1002, and a correction module 1003. Wherein:
the deviation obtaining module 1001 is configured to obtain alignment deviations according to image information of a plurality of display panels, where the display panels are formed by laminating a substrate and a film, and the alignment deviations are coordinate deviations between alignment marks of the substrate and alignment marks of the film.
And a compensation determining module 1002, configured to obtain an alignment compensation value according to the alignment deviation and a preset calibration weight.
And the correcting module 1003 is configured to control the pressing device to correct the pose of the film to be pressed according to the alignment compensation value.
In one embodiment, the aligning apparatus further comprises: and the updating module is used for 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.
In one embodiment, the update module further comprises: and the correcting unit is used for correcting and laminating the film and the substrate which are pre-corrected currently according to the previous alignment compensation value until the alignment deviation of the pre-corrected display panel after lamination processing is less than or equal to a preset threshold value, and the alignment compensation value corresponding to the alignment deviation less than or equal to the preset threshold value is an updated alignment compensation value.
In one embodiment, the offset acquisition module 1001 includes: offset determining unit and deviation determining unit.
Wherein:
and the offset determining unit is used for determining the coordinate offset between the alignment marks of the substrate and the alignment marks of the thin film in each display panel according to the image information of the plurality of display panels.
And the deviation determining unit is used for determining the alignment deviation according to the distribution state of the coordinate deviation.
For the specific definition of the alignment apparatus, reference may be made to the above definition of the alignment method, which is not described herein again. All or part of the modules in the aligning device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
In one embodiment, a computer device is provided, the internal structure of which may be as shown in fig. 11. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operating system and the computer program to run on the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a registration method.
It will be appreciated by those skilled in the art that the configuration shown in fig. 11 is a block diagram of only a portion of the configuration associated with the present application, and is not intended to limit the computing device to which the present application may be applied, and that a particular computing device may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the above-described method embodiments when executing the computer program.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of aligning, the method comprising:
acquiring alignment deviation according to image information of a plurality of display panels, wherein the display panels are formed by laminating a substrate and a film, and the alignment deviation is coordinate deviation between alignment marks of the substrate and alignment marks of the film;
acquiring a counterpoint compensation value according to the counterpoint deviation and a preset calibration weight;
and controlling a laminating device to correct the pose of the film to be laminated according to the alignment compensation value.
2. The method of claim 1, further comprising:
and updating the alignment compensation value, and controlling the laminating device to correct the pose of the film to be laminated according to the updated alignment compensation value.
3. The method of claim 2, wherein said updating the alignment compensation value comprises:
when the alignment compensation value is larger than a preset threshold value, correcting the pre-correction film to be pressed currently according to the previous alignment compensation value, and then performing pressing treatment on the pre-correction film and the pre-correction substrate until the alignment deviation of the pre-correction display panel after pressing treatment is smaller than or equal to the preset threshold value, wherein the alignment compensation value corresponding to the alignment deviation smaller than or equal to the preset threshold value is an updated alignment compensation value;
the current alignment deviation of the pre-correction display panel and the preset calibration weight are used for obtaining an alignment compensation value of a next pre-correction film to be pressed.
4. The method of claim 1, wherein obtaining the misalignment based on image information of a plurality of display panels comprises:
determining coordinate offset between the alignment marks of the substrate and the alignment marks of the film in each display panel according to image information of the display panels;
and determining the alignment deviation according to the distribution state of each coordinate offset.
5. The method of claim 4, wherein the coordinate offset comprises: and the absolute value and the offset direction of the offset between the alignment mark of the substrate and the alignment mark of the film in the same display panel.
6. The method of claim 1, wherein the alignment deviation comprises an X-axis deviation, a Y-axis deviation and an angle deviation, and before the obtaining the alignment compensation value according to the alignment deviation and the preset calibration weight, the method further comprises:
comparing the X-axis deviation, the Y-axis deviation and the angle deviation with a corresponding X-axis preset threshold, a Y-axis preset threshold and an angle preset threshold respectively;
and under the condition that any comparison result does not meet the preset condition, executing the step of acquiring the alignment compensation value according to the alignment deviation and the preset calibration weight.
7. An alignment system, comprising:
the laminating device is used for laminating the film and the substrate;
the shooting device is used for acquiring image information of a plurality of display panels, and the display panels are formed by pressing a substrate and a film;
the optical detection device is connected with the shooting device and used for determining the alignment deviation of the display panels according to the image information of the display panels, and the alignment deviation is the coordinate deviation between the alignment marks of the substrate and the alignment marks of the film;
the processor is respectively connected with the optical detection device and the pressing device and is used for acquiring an alignment compensation value according to the alignment deviation and a preset calibration weight; and controlling the laminating device to correct the pose of the film to be laminated according to the alignment compensation value.
8. An alignment device, comprising:
the deviation acquiring module is used for acquiring alignment deviation according to image information of a plurality of display panels, the display panels are formed by laminating a substrate and a film, and the alignment deviation is coordinate deviation between alignment marks of the substrate and alignment marks of the film;
the compensation determining module is used for acquiring an alignment compensation value according to the alignment deviation and a preset calibration weight;
and the correction module is used for controlling the pressing device to correct the pose of the film to be pressed according to the alignment compensation value.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the bit alignment method according to any one of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method of aligning bits of any one of claims 1 to 6.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116543052A (en) * | 2023-06-15 | 2023-08-04 | 深圳荣耀智能机器有限公司 | Alignment deviation processing method and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116543052A (en) * | 2023-06-15 | 2023-08-04 | 深圳荣耀智能机器有限公司 | Alignment deviation processing method and electronic equipment |
| CN116543052B (en) * | 2023-06-15 | 2023-11-10 | 深圳荣耀智能机器有限公司 | Alignment deviation processing method and electronic equipment |
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