CN117330570A - Appearance detection method and detection system in sensor glass electrode layer manufacturing process - Google Patents
Appearance detection method and detection system in sensor glass electrode layer manufacturing process Download PDFInfo
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- CN117330570A CN117330570A CN202311226294.5A CN202311226294A CN117330570A CN 117330570 A CN117330570 A CN 117330570A CN 202311226294 A CN202311226294 A CN 202311226294A CN 117330570 A CN117330570 A CN 117330570A
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- sensor glass
- appearance
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- electrode layer
- sensor
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- 239000011521 glass Substances 0.000 title claims abstract description 90
- 238000001514 detection method Methods 0.000 title claims abstract description 87
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 46
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000000007 visual effect Effects 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 238000010030 laminating Methods 0.000 claims description 6
- 238000005286 illumination Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 9
- 238000003475 lamination Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000007689 inspection Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention provides an appearance detection method and a detection system in a sensor glass electrode layer manufacturing process, wherein the method comprises the following steps: finishing the manufacture of bridge points and the ITO pattern layer on a sensor glass; putting the sensor glass which completes the manufacture of the bridge points and the ITO pattern layer into a QC tool table; taking a target cover plate, and dripping industrial ethanol or water on the target cover plate; or dropping industrial ethanol or water on the sensor glass; attaching the cover plate with the industrial ethanol or water dropwise to the sensor glass, slowly dispersing the solvent, and finally filling the whole visual area to simulate the attaching state of a finished product; appearance detection is carried out by adjusting different angles of the QC tool table, and whether sensor glass meets the requirements is confirmed; the appearance detection is qualified, and the next production flow step is continued; and returning to the production again if the appearance detection is unqualified. According to the invention, by utilizing the characteristic that the refractive index of water or alcohol is close to that of OCA or OCR, the water or alcohol is dripped on the sensor glass of the cover plate or the electrode layer is manufactured, and appearance detection is carried out after lamination, so that the defects of the sensor glass can be found out in time and solved in time.
Description
Technical Field
The invention relates to the technical field of touch screen production, in particular to an appearance detection method and a detection system in a sensor glass electrode layer manufacturing process.
Background
In the touch screen manufacturing industry, each process of the product manufacturing process is closely related to the yield of the product, if the product manufactured by the previous process cannot detect whether the product meets the requirement, the defect can be identified when the product is reached, and huge loss is brought to companies. For example, the problem of uneven brightness or the like due to the bridge point of the sensor glass or the ITO pattern, as shown in fig. 2, may occur that the bridge point is lighted. Currently, it is necessary to find the finished product (with OCA and cover plate attached) that will cause irrecoverable losses, as shown in fig. 1.
However, if defects can be well observed before the finished product after the bridge point or ITO pattern is manufactured, problems can be found in advance, and loss is reduced.
Disclosure of Invention
In order to solve the technical problems, in the electrode layer manufacturing process of the sensor glass, the bridge points or the ITO patterns can be detected after the sensor glass is finished, so that the sensor glass meeting the requirements of a touch screen finished product can be detected in time and prevented from being damaged in time, and the subsequent manufacturing process is adjusted. Specifically, the technical scheme of the invention is as follows:
on the one hand, a method for detecting the appearance in the manufacturing process of the sensor glass electrode layer is provided, which comprises the following steps:
finishing the manufacture of bridge points and the ITO pattern layer on a sensor glass;
putting the sensor glass which completes the manufacture of the bridge points and the ITO pattern layer into a QC tool table;
taking a target cover plate, and dripping industrial ethanol or water on the target cover plate; or dropping industrial ethanol or water on the sensor glass;
attaching the cover plate with the industrial ethanol or water dropwise to the sensor glass, slowly dispersing the solvent, and finally filling the whole visual area to simulate the attaching state of a finished product; appearance detection is carried out by adjusting different angles of the QC tool table, and whether sensor glass meets the requirements is confirmed; if the appearance detection is qualified, continuing the next production flow step; and if the appearance detection is not qualified, returning to the production again.
As the preferable technical scheme, the QC tool table comprises a supporting frame, and a clamping groove structure is arranged on the supporting frame.
As the preferable technical scheme, the QC tool table also comprises a detection light source, wherein the detection light source is arranged above and on the side face of the support frame and is used for providing illumination for appearance detection.
As a preferable technical scheme, the illuminance of the detection light source is 800-1200 lux.
As the preferable technical scheme, the rotating structure is connected to the two sides of the support frame, and the rotating structure can be used for adjusting the angle of the support frame.
As the preferable technical scheme, the rotating structure can be used for adjusting the angle of the support frame, and particularly, the angle range of the support frame is-45 degrees to 45 degrees.
As a preferable technical scheme, when appearance detection is carried out, the detection direction comprises a longitudinal direction and a transverse direction, and the detection distance is 25-35 cm.
In a preferred embodiment, the background is black-and-white background when the sensor glass is used for appearance detection, and the backlight is used for detection when the key region of the sensor glass is used for detection.
On the other hand, an appearance detection system in a sensor glass electrode layer manufacturing process is provided, and an automatic positioning module, a laminating detection module and an appearance detection module are provided; the automatic positioning module is used for accurately positioning the sensor glass and the cover plate; the laminating detection module is used for detecting whether the sensor glass is laminated completely with the apron, and the outward appearance detection module is used for detecting whether the sensor glass has the outward appearance bad.
As a preferable technical scheme, the appearance detection module comprises a sensor and an image processor, wherein the sensor is used for acquiring image data of the sensor glass, and the image processor is used for analyzing the image data and giving out corresponding analysis results.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, after the manufacturing of the sensor glass electrode layer is finished, before the cover plate is attached, the characteristics that the refractive indexes of water, alcohol and OCA or OCR are close are utilized, the sensor glass electrode layer is dripped onto the cover plate or the manufactured electrode layer, and appearance detection is carried out after the attachment, so that the defects of the sensor glass can be timely found and timely solved, the defect of a finished product is not found until the attachment is finished, and the loss is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of appearance detection of a finished touch screen in the prior art;
FIG. 2 is a schematic diagram of an appearance inspection defect in the prior art;
FIG. 3 is a schematic flow chart of an appearance detection method in a process for manufacturing a sensor glass electrode layer according to embodiment 1 of the present invention;
FIG. 4 is a schematic diagram showing the dropping of industrial ethanol or water onto a target cover plate or sensor glass according to example 1 of the present invention;
fig. 5 is a schematic structural diagram of a QC tool table proposed in embodiment 1 of the present invention;
FIG. 6 is a diagram showing the appearance inspection of sensor glass according to embodiment 1 of the present invention;
FIG. 7 is a diagram showing the detection of the sensor glass according to embodiment 1 of the present invention;
FIG. 8 is a diagram illustrating a key region for detecting sensor glass according to embodiment 1 of the present invention;
FIG. 9 is a schematic diagram of an appearance inspection system in a process for fabricating a sensor glass electrode layer according to embodiment 2 of the present invention;
reference numerals illustrate: an automatic positioning module 01; a fit detection module 02; an appearance detection module 03;
QC tool table 1; a support frame 11; a support site 111; an air hole 112; a rotation mechanism 12; the light source 13 is detected.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.
The manufacturing process of the sensor glass electrode layer is a key process in the whole production, and directly influences the quality of the manufactured touch screen, so that the detection of the electrode layer is also a key process. In the prior art, the problem of uneven brightness and the like of bridge points or ITO patterns can be detected only after the sensor glass is attached to an OCA, OCR or a cover plate, but when the problem is detected, waste is caused. Because, in general, the OCA or OCR is not only inconvenient to attach, but also the attached cover plate cannot be attached next time, and even the optical cement is detected after being made into a finished product by UV light irradiation or other conditions, in this case, the operation is extremely inconvenient and the material is wasted. Therefore, based on the problems, the method provided by the invention can be used for detection in production without waiting for a finished product, so that the efficiency is low and the production cost is high.
Example 1
As shown in fig. 3, a method for detecting an appearance in a process for manufacturing a sensor glass electrode layer is provided in this embodiment, including:
and S10, finishing the manufacture of the bridge points and the ITO pattern layer on the sensor glass.
S20, putting the sensor glass which completes the manufacture of the bridge points and the ITO pattern layer into the QC tool table 1.
S30, taking a target cover plate, and dripping industrial ethanol or water on the target cover plate; or dropping industrial ethanol or water on the sensor glass. The target cover plate can be any one, and in the detection process, the sensor glass of any typesetting can be detected at will under the condition of not changing the cover plate. Further, the detection reagent selected here has an index of refraction close to that of OCA or OCR. Industrial ethanol or water is dripped into the sensor glass or the target cover plate, and the sensor glass and the target cover plate are attached together, so that the attachment of the sensor glass and the target cover plate together by OCA or OCR is completely simulated. As shown in FIG. 4, it should be appreciated by those skilled in the art that the sensor glass is laid on the QC tool table 1, and industrial ethanol or water is dripped on the single sensor glass through a path set by the system, and the dripping is carried out through 9 areas, so that the whole visual area can be uniformly distributed after the lamination.
And S40, attaching the cover plate with the industrial ethanol or water dropwise to the sensor glass, slowly dispersing the solvent, and finally filling the whole visual area to simulate the attaching state of the finished product. Further, appearance detection is performed by adjusting different angles of the QC tool table 1, and whether the sensor glass meets the requirement is confirmed. If the appearance detection is qualified, the next production process steps are continued, such as cutting into single grains, edging, chamfering, binding FPC, laminating lens, optical film and the like. However, if the appearance inspection is not acceptable, it is necessary to return to the production again, that is, to newly produce the electrode layer of the sensor glass.
As shown in fig. 5, preferably, the QC tool table 1 includes a support frame 11, a clamping groove structure is disposed on the support frame 11, the clamping groove includes a support position 111, an air hole 112 is further designed on the support position 111, a vacuum pump can be connected below the air hole 112 through an air pipe, and a sensor glass to be detected and attached to a cover plate is fixed through an air suction hole 112.
In other preferred embodiments, the fixing structure may be a clamping jaw structure, or may be an upper and a lower fixing structures, and after the sensor glass attached to the cover plate to be tested is placed, the upper and the lower fixing structures are fixed. The specific structure is not described in detail here, and a person skilled in the art can perform a corresponding design for realizing the technical effect of fixing. The fixing structures may be disposed at a certain distance, and the specific number of the fixing structures is not limited.
Preferably, the detection light sources 13 are disposed above and beside the support frame 11, and specifically, the two detection light sources 13 are disposed vertically. The detection light source 13 is used for providing illumination for the appearance detection of the sensor glass attached with the cover plate. Further, in the detection, the illuminance of the detection light source 13 is set to 800 to 1200lux.
Further, the two sides of the supporting frame 11 are connected with the rotating mechanism 12, and the angle of the supporting frame 11 can be adjusted through the rotating mechanism 12, so that the supporting frame 11 is in different angles under the detection light source 13, and the problems of uneven brightness and the like caused by poor manufacture of bridge points and ITO pattern layers can be conveniently detected from each angle. With continued reference to fig. 5, the rotating mechanisms 12 are disposed on two sides of the QC tool table 1, and drive the support frame 11 to rotate in different directions and angles through the rotating shaft. Specifically, the rotation angle can be controlled by a motor, and parameters with the rotation angle can be manually input by a system control.
Preferably, as shown in fig. 6, the appearance detection is performed by adjusting different angles of the QC tool table 1, specifically, adjusting the angle of the support frame 11, and the angle range thereof may be set to-45 ° to 45 °. Further, the detection direction comprises longitudinal detection and transverse detection, namely omnibearing scanning, the detection distance is 25-35 cm, and the detection distance is the distance between a sensor of the detection module and the sensor glass to be detected. During detection, the sample is scanned from the longitudinal direction and the transverse direction slowly, and detection is performed.
Preferably, the appearance detection is performed by adjusting different angles of the QC tool table 1, wherein, as shown in fig. 7, the background is set to be black-white background when the visual area of the sensor glass is detected, and as shown in fig. 8, the detection is performed by lighting the backlight when the key area of the sensor glass is detected.
Example 2
Referring to fig. 9, a schematic structural diagram of an appearance detection system in a process for manufacturing a sensor glass electrode layer according to this embodiment is provided, where the detection system at least includes: an automatic positioning module 01, a laminating detection module 02 and an appearance detection module 03.
The automatic positioning module 01 is used for accurately positioning the sensor glass and the cover plate, and the automatic positioning module 01 further comprises a sensor and a fine adjustment structure. Specifically, when the sensor glass after the cover plate is attached is put into the supporting frame 11, before the supporting frame 11 is not fixed, when the alignment is not correct, the cover plate and the sensor glass are aligned accurately through the fine adjustment structure. The sensor can be arranged at four corners of the support frame 11 on the QC tool table 1, and the sensor glass and the cover plate are accurately positioned through the communication connection of the sensor and the fine adjustment structure.
The fitting detection module 02 is used for detecting whether the sensor glass and the cover plate are completely fitted, mainly detecting whether industrial ethanol or water is even and not full of the whole visual area, whether the cover plate and the sensor glass are deviated in fitting, and whether bubbles and foreign matters exist, because the two indexes can interfere the appearance detection result of the sensor glass.
The appearance detection module 03 is used for detecting whether the sensor glass has poor appearance. The sensor is used for acquiring image data of the sensor glass, and the image processor is used for analyzing the image data and giving corresponding analysis results. Further, the sensor can scan from the lateral and longitudinal directions of the sensor glass to acquire image data. Further, the image processor analyzes the image data to give out corresponding analysis results, wherein the analysis results comprise defect problems and positions of defects, and further, the positions of the defects can be accurately positioned, so that convenience is brought to staff, and the detection efficiency and the detection yield are improved.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (10)
1. The appearance detection method in the manufacturing process of the sensor glass electrode layer is characterized by comprising the following steps of:
finishing the manufacture of bridge points and the ITO pattern layer on a sensor glass;
putting the sensor glass which completes the manufacture of the bridge points and the ITO pattern layer into a QC tool table;
taking a target cover plate, and dripping industrial ethanol or water on the target cover plate; or dropping industrial ethanol or water on the sensor glass;
attaching the cover plate with the industrial ethanol or water dropwise to the sensor glass, slowly dispersing the solvent, and finally filling the whole visual area to simulate the attaching state of a finished product; appearance detection is carried out by adjusting different angles of the QC tool table, and whether the sensor glass meets the requirement is confirmed; if the appearance detection is qualified, continuing the next production flow step; and if the appearance detection is not qualified, returning to the production again.
2. The method for detecting the appearance in the manufacturing process of the sensor glass electrode layer according to claim 1, wherein the QC tool table comprises a supporting frame, and a clamping groove structure is arranged on the supporting frame.
3. The method for detecting the appearance in the manufacturing process of the sensor glass electrode layer according to claim 2, wherein the QC tool table further comprises a detection light source, and the detection light source is arranged above and on the side surface of the support frame and is used for providing illumination for the appearance detection.
4. The method for detecting the appearance in the process of manufacturing a sensor glass electrode layer according to claim 3, wherein the illuminance of the detection light source is 800-1200 lux.
5. The method for detecting the appearance in the manufacturing process of the sensor glass electrode layer according to claim 2, wherein two sides of the supporting frame are connected with rotating structures, and the rotating structures can be used for adjusting the angle of the supporting frame.
6. The method for detecting the appearance in the process of manufacturing a sensor glass electrode layer according to claim 5, wherein the rotating structure can be used for adjusting the angle of the support frame, in particular, adjusting the angle of the support frame to be in a range of-45 ° to 45 °.
7. The method for detecting the appearance in the manufacturing process of the sensor glass electrode layer according to claim 6, wherein the detection direction comprises a longitudinal direction and a transverse direction, and the detection distance is 25-35 cm.
8. The method for detecting appearance in a process for manufacturing a sensor glass electrode layer according to claim 7, wherein the background is black-and-white background when detecting the sensor glass visual area, and the backlight is used for detecting the key area of the sensor glass.
9. The appearance detection system in the sensor glass electrode layer manufacturing process is characterized by comprising an automatic positioning module, a laminating detection module and an appearance detection module; the automatic positioning module is used for accurately positioning the sensor glass and the cover plate; the laminating detection module is used for detecting whether the sensor glass is completely laminated with the cover plate, and the appearance detection module is used for detecting whether the sensor glass has poor appearance.
10. The appearance detection system in the process of manufacturing a sensor glass electrode layer according to claim 9, wherein the appearance detection module comprises a sensor and an image processor, wherein the sensor is used for acquiring image data of the sensor glass, and the image processor is used for analyzing the image data and giving corresponding analysis results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311226294.5A CN117330570A (en) | 2023-09-22 | 2023-09-22 | Appearance detection method and detection system in sensor glass electrode layer manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311226294.5A CN117330570A (en) | 2023-09-22 | 2023-09-22 | Appearance detection method and detection system in sensor glass electrode layer manufacturing process |
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| Publication Number | Publication Date |
|---|---|
| CN117330570A true CN117330570A (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311226294.5A Pending CN117330570A (en) | 2023-09-22 | 2023-09-22 | Appearance detection method and detection system in sensor glass electrode layer manufacturing process |
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| Country | Link |
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| CN (1) | CN117330570A (en) |
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2023
- 2023-09-22 CN CN202311226294.5A patent/CN117330570A/en active Pending
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