CN107505335B - Detection device and method for attaching bubbles to touch screen - Google Patents
Detection device and method for attaching bubbles to touch screen Download PDFInfo
- Publication number
- CN107505335B CN107505335B CN201710789748.8A CN201710789748A CN107505335B CN 107505335 B CN107505335 B CN 107505335B CN 201710789748 A CN201710789748 A CN 201710789748A CN 107505335 B CN107505335 B CN 107505335B
- Authority
- CN
- China
- Prior art keywords
- touch screen
- light source
- detection
- positioning
- detected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
Landscapes
- 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)
- Position Input By Displaying (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
A detection device and a detection method for bubbles attached to a touch screen comprise a detection light source and a reflective film, wherein the reflective film is arranged below a functional sheet of the touch screen to be detected, the reflective surface of the reflective film faces the direction of a glass cover plate of the touch screen to be detected, the detection light source is positioned above the glass cover plate of the touch screen to be detected and is tightly attached to the glass cover plate, and light rays point to the direction of the glass cover plate; the touch screen detection device comprises a positioning and laminating jig, wherein a bearing surface on the positioning and laminating jig is as large as a visible area of a touch screen to be detected, and the reflective film is laminated on the bearing surface of the positioning and laminating jig; the light is reflected by the reflective film, and the detection efficiency and the detection precision are greatly improved, the production yield is improved, and the product quality is improved after the device and the method are adopted. In addition, the detection method does not use a large amount of light, avoids dazzling, protects eyes of workers, is not easy to cause discomfort, and improves the working comfort level of the workers.
Description
Technical Field
The patent relates to the display screen manufacturing industry, in particular to a device and a method for detecting bubbles attached to a touch screen.
Background
In recent years, capacitive touch screens are developed rapidly, market competition is intensified, and higher requirements are put forward for process inspection of the capacitive touch screens in order to improve production yield and customer satisfaction. In the manufacturing process of the touch screen, the display panel, the touch screen and the protective glass are completely stuck together in a seamless mode by glue or optical cement. The water gel process is a hot use process gradually due to the advantages of high light transmittance, good bonding strength, small curing shrinkage rate and the like, but the water gel is used as a liquid object and has certain gas solubility and is easy to generate bubbles, and local omission possibly exists in the water gel leveling process, so that the produced touch screen product needs to be checked, defective products are checked out and recycled, and the next UV curing treatment can be carried out after no omission or bubble is confirmed through elimination, so that the product yield is improved.
At present, the traditional investigation method is to place a desk lamp or a hanging lamp above a desktop, a worker performs illumination inspection under the light, the naked eye identifies the lacuna and the bubbles in the water gel, the whole or most of the working table surface is illuminated by the light, but the inspection method has a great problem, because the working table surface is too bright, a great amount of light refraction and diffuse reflection exist, the eyes of the worker can be stimulated by various light, because the retinal nerve of the eyes receives the light limitedly, the light is injected in due to the scattered energy, but the worker cannot easily find the tiny bubbles, and the working state for a long time can cause injury to the eyes of the worker, but because the fixed cognition of the masses, people do not make better breakthrough and improvement methods in the aspect, the omission inspection of the tiny bubbles can not be avoided, and the yield of the product can not be further improved, even some consumers find it to be a defective product with micro-bubbles when they purchase touch screen products. In order to overcome this drawback, a new inspection method is required to be found to improve the detection accuracy.
Disclosure of Invention
Based on the reasons, the invention designs the detection device and the detection method for the attaching bubbles of the touch screen, so that detection personnel can quickly find the missing bubbles and the bubbles and easily find the tiny bubbles, the checking efficiency and precision are improved, and the yield of products is ensured.
The specific scheme is as follows: a detection device for bubbles attached to a touch screen comprises a detection light source and a reflective film, wherein the reflective film is arranged below a functional sheet of the touch screen to be detected, the reflective surface of the reflective film faces the direction of a glass cover plate of the touch screen to be detected, the detection light source is positioned above the glass cover plate of the touch screen to be detected and is tightly attached to the glass cover plate, and light rays point to the direction of the glass cover plate;
furthermore, the detection light source is a parallel light source, and the parallel light is more concentrated and has better actual use effect;
further, a novel touch-sensitive screen laminating bubble verifying attachment, its characterized in that: the parallel light source is a plurality of groups of parallel lights emitted by a plurality of groups of LED lamp beads through a focusing lens;
further, a novel touch-sensitive screen laminating bubble verifying attachment, its characterized in that: the positioning and laminating jig is provided, the bearing surface on the positioning and laminating jig is as large as the visible area of the touch screen to be detected, and the reflective film is laminated on the bearing surface of the positioning and laminating jig, so that the stability of the reflective film is improved, and the reflective film is not easy to shift;
further, a novel touch-sensitive screen laminating bubble verifying attachment, its characterized in that: the front end of the detection light source is provided with an annular buffer pad at the peripheral part to avoid scratching the glass cover plate.
Further, a novel touch-sensitive screen laminating bubble verifying attachment, its characterized in that: the front end peripheral part of the detection light source is provided with an annular flange, so that the purpose of the detection light source is achieved, scattering of light before entering a product is avoided, and concentrated light is more beneficial to effective reflection of the light.
Further, a novel touch-sensitive screen laminating bubble verifying attachment, its characterized in that: a cushion pad is provided on the outer ring of the annular flange of the peripheral edge portion of the front end of the detection light source.
Further, a novel touch-sensitive screen laminating bubble verifying attachment, its characterized in that: the reflective film is a high-strength nano reflective film, and the high-strength nano reflective film has a good reflective effect and is more favorable for detecting micro bubbles;
the method for detecting the attaching bubbles of the touch screen of the novel touch screen attaching bubble inspection device comprises the steps of attaching a reflecting film with the area size of 1:1 on the bearing surface of a positioning attaching jig, wherein the reflecting surface is upward, then, the functional sheet and the glass cover plate of the touch screen to be detected are sequentially placed into a positioning and laminating jig to complete the dispensing and laminating process and the leveling process, then the positioning and laminating jig is pushed into the inspection area, the detection light source is moved to the position above the glass cover plate of the touch screen to be detected, and the functional sheet and the glass cover plate are tightly attached to the glass cover plate to move back and forth in the visible area of the touch screen to be detected, the light rays are irradiated in, the light rays reach the reflective film to be further reflected, bubbles in the water gel layer corresponding to the visible area of the touch screen to be detected are clearly reflected out, and detection personnel can easily find the missing and the bubbles in the water gel layer of the touch screen to be detected by detecting the reflected light rays around the light source.
Furthermore, the touch screen attaching bubble detection method of the novel touch screen attaching bubble detection device is characterized in that the reflective film is attached to the positioning and attaching jig in a stripping manner, so that the detachment is facilitated.
After the device and the method are adopted, the device is simple in structure, energy-saving and not dazzling, the omission and the bubble reflection of the uniform glue layer are particularly obvious, the omission and the bubble in the glue of the touch screen functional sheet and the glass cover plate are reflected clearly by the high-strength nanometer reflective film through the LED lamp source, so that the tiny bubble can be found easily, the bubble with the minimum diameter of 50um can be detected, the detection efficiency and the detection precision are greatly improved, the production yield is improved, and the product quality is improved. In addition, the detection method does not use a large amount of light, avoids dazzling, protects eyes of workers, is not easy to cause discomfort, and improves the working comfort level of the workers.
Drawings
FIG. 1 is a schematic cross-sectional view of an exemplary detection light source;
FIG. 2 is a schematic diagram of the embodiment;
FIG. 3 is a schematic diagram of light reflection according to an embodiment.
Detailed Description
A detection device 1 for detecting bubbles attached to a touch screen, as shown in figures 1 and 2, comprises a detection light source 2 and a reflective film 3, wherein the detection light source 2 is a parallel light source, the reflective film 3 is arranged below the functional sheet 41 of the touch screen 4 to be detected, the reflective surface 31 of the reflective film 3 faces the direction of the glass cover plate 42 of the touch screen 4 to be detected, the detection light source 2 is arranged above the glass cover plate 42 of the touch screen 4 to be detected and clings to the glass cover plate 42, the light rays point to the direction of the glass cover plate 42, the front end of the detection light source 2 is provided with an annular flange 21 and an annular buffer pad 22 at the peripheral part, a positioning and jointing jig 5 is provided, a bearing surface 51 on the positioning and jointing jig 5 is as large as a visible area 421 of the touch screen 4 to be detected, the reflective film 3 is attached to the bearing surface 51 of the positioning and attaching jig 5, and the reflective film 3 is a high-strength nano reflective film.
The detection method of the novel touch screen attaching bubble detection device comprises the steps of attaching a reflection film 3 to a support surface 51 of a positioning and attaching jig 5 with the area size of 1:1, enabling a reflection surface 31 to face upwards, sequentially placing a functional sheet 41 and a glass cover plate 42 of a touch screen 4 to be detected into the positioning and attaching jig 5 to complete a dispensing and attaching process and a leveling process, then pushing the positioning and attaching jig 5 into a detection area, moving a detection light source 2 to the position above the glass cover plate 42 of the touch screen 4 to be detected, moving the glass cover plate 42 in a reciprocating manner in a visible area 421 of the touch screen 4 to be detected in a clinging manner, irradiating light on the reflection film 3 after being refracted by the glass cover plate 42, a water glue layer 43 and the functional sheet 41 as shown in figure 2, reflecting the light by the reflection film 3, sequentially refracting the light by the functional sheet 41, the water glue layer 43 and the glass cover plate 42, and clearly displaying bubbles 431 in the water glue layer 43 corresponding to the visible area 421 of the touch screen 4 to be detected, the detection personnel can easily find the missing and the air bubbles in the water gel layer of the touch screen to be detected by detecting the reflected light around the light source.
The above is only an example within the protection scope of the patent, and the right of the patent is not limited by the example.
Claims (9)
1. The utility model provides a detection apparatus for touch-sensitive screen laminating bubble, including a detection light source and a reflective membrane, the reflective membrane sets up and is waiting to detect the function piece below of touch-sensitive screen, the direction of the glass apron of touch-sensitive screen is waited to detect to reflective membrane's reflection of light face orientation, the detection light source is located waits to detect the glass apron top of touch-sensitive screen, and this detection light source front end week edge portion is equipped with cyclic annular blotter, wherein, this detection light source is hugging closely the glass apron setting, and can be on the glass apron round trip movement, the directional glass apron direction of light, and then detect the in-situ disappearance and the bubble of touch-sensitive screen glue through the reflection light discovery around the detection light source.
2. The touch screen attachment bubble detection device of claim 1, wherein: the detection light source is a parallel light source.
3. The touch screen attachment bubble detection device of claim 2, wherein: the parallel light source is a plurality of groups of parallel lights emitted by a plurality of groups of LED lamp beads through the focusing lens.
4. The touch screen attachment bubble detection device of claim 1, wherein: the touch screen comprises a positioning and laminating jig, wherein a bearing surface on the positioning and laminating jig is as large as a visible area of the touch screen to be detected, and the reflective film is laminated on the bearing surface of the positioning and laminating jig.
5. The touch screen attachment bubble detection device of claim 1, wherein: the front end of the detection light source is provided with an annular flange at the peripheral part.
6. The touch screen attachment bubble detection device of claim 5, wherein: an annular cushion pad is arranged on the outer ring of the annular flange of the peripheral part of the front end of the detection light source.
7. The touch screen attachment bubble detection device of claim 1, wherein: the reflective film is a high-strength nanometer reflective film.
8. A touch screen attaching bubble detection method of a touch screen attaching bubble detection device according to any one of claims 1 to 7, wherein a reflecting film with the area size of 1:1 is attached to a supporting surface of a positioning and attaching jig, the reflecting surface faces upwards, then a functional sheet and a glass cover plate of a touch screen to be detected are sequentially placed into the positioning and attaching jig to complete a dispensing and attaching process and a leveling process, then the positioning and attaching jig is pushed into an inspection area, a detection light source is moved to the position above the glass cover plate of the touch screen to be detected, the functional sheet and the glass cover plate are tightly attached to the glass cover plate to move back and forth in the visual area of the touch screen to be detected, and the defects and bubbles in a glue layer corresponding to the visual area of the touch screen to be detected are clearly reflected out.
9. The touch screen attaching bubble detection method of the touch screen attaching bubble detection device according to claim 8, wherein the light-reflecting film is attached to the positioning attaching jig in a peelable manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789748.8A CN107505335B (en) | 2017-09-05 | 2017-09-05 | Detection device and method for attaching bubbles to touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789748.8A CN107505335B (en) | 2017-09-05 | 2017-09-05 | Detection device and method for attaching bubbles to touch screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107505335A CN107505335A (en) | 2017-12-22 |
| CN107505335B true CN107505335B (en) | 2022-08-02 |
Family
ID=60694848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710789748.8A Active CN107505335B (en) | 2017-09-05 | 2017-09-05 | Detection device and method for attaching bubbles to touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107505335B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61107106A (en) * | 1984-10-30 | 1986-05-26 | Meinan Mach Works Inc | Flaw detection head for detecting surface flaw of plywood |
| JPH0961139A (en) * | 1995-08-22 | 1997-03-07 | Asahi Glass Co Ltd | Method and apparatus for detection of fault in transparent body |
| CN102896873A (en) * | 2012-10-26 | 2013-01-30 | 东莞宇龙通信科技有限公司 | Fitting jig for display screen and touch screen, fitting device and method |
| CN203643356U (en) * | 2014-01-03 | 2014-06-11 | 苏州吉视电子科技有限公司 | Sheet part surface quality detection device |
| CN104081192A (en) * | 2011-04-21 | 2014-10-01 | 艾悌亚信息技术（上海）有限公司 | Apparatus and method for photographing glass defects in multiple layers |
| CN206095968U (en) * | 2016-10-08 | 2017-04-12 | 厦门理工学院 | LCD screen bubble defect detecting device based on machine vision |
| CN206223686U (en) * | 2016-11-25 | 2017-06-06 | 北京兆维电子(集团)有限责任公司 | A kind of LCD open defects detecting system |
-
2017
- 2017-09-05 CN CN201710789748.8A patent/CN107505335B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61107106A (en) * | 1984-10-30 | 1986-05-26 | Meinan Mach Works Inc | Flaw detection head for detecting surface flaw of plywood |
| JPH0961139A (en) * | 1995-08-22 | 1997-03-07 | Asahi Glass Co Ltd | Method and apparatus for detection of fault in transparent body |
| CN104081192A (en) * | 2011-04-21 | 2014-10-01 | 艾悌亚信息技术（上海）有限公司 | Apparatus and method for photographing glass defects in multiple layers |
| CN102896873A (en) * | 2012-10-26 | 2013-01-30 | 东莞宇龙通信科技有限公司 | Fitting jig for display screen and touch screen, fitting device and method |
| CN203643356U (en) * | 2014-01-03 | 2014-06-11 | 苏州吉视电子科技有限公司 | Sheet part surface quality detection device |
| CN206095968U (en) * | 2016-10-08 | 2017-04-12 | 厦门理工学院 | LCD screen bubble defect detecting device based on machine vision |
| CN206223686U (en) * | 2016-11-25 | 2017-06-06 | 北京兆维电子(集团)有限责任公司 | A kind of LCD open defects detecting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107505335A (en) | 2017-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208043682U (en) | A kind of leaded light board defect Automatic Visual Inspection device | |
| CN101718714B (en) | System and method for detecting surface defects of flat glass | |
| EP2594972A3 (en) | Backlight unit and display apparatus thereof | |
| CN103438821B (en) | A kind of honeycomb ceramic support transmittance detection device and method | |
| CN105548217A (en) | Appearance inspection device and method of film coating product | |
| CN107505335B (en) | Detection device and method for attaching bubbles to touch screen | |
| CN204832058U (en) | Automatic optics inspection device of automatic rigging machine built -in of backlight module | |
| CN203606027U (en) | Testing support for lighting test | |
| CN103439812B (en) | Liquid crystal glass base 45° angle inspection technique | |
| CN207148002U (en) | A kind of detection means of touch-screen fitting bubble | |
| CN204598435U (en) | Face glass quality inspection device | |
| CN218674691U (en) | Detection apparatus for touch-sensitive screen laminating bubble | |
| CN203464906U (en) | Lens center thickness optical detection instrument light path | |
| CN206618704U (en) | A kind of touch-screen laminating bubble verifying attachment | |
| CN202362255U (en) | Illumination detecting device of illuminator | |
| CN115616003A (en) | Fresnel optical film inspection equipment and inspection method thereof | |
| CN204062671U (en) | A kind of bottom lighting type backlight device | |
| CN202956348U (en) | Device for detecting printing dots of light guide plate | |
| CN204154918U (en) | A kind of circular blast microstructure light diffusing sheet | |
| CN208537879U (en) | Corner coaxial light source | |
| CN207335646U (en) | A kind of lens assemble vertical detection device | |
| CN203069525U (en) | Novel photovoltaic module mirror surface detection worktable | |
| CN203454977U (en) | Honeycomb ceramic support transmittance detection device | |
| CN203849181U (en) | Contact lens finished product inspection workbench | |
| CN206281636U (en) | Light guide plate check-out console |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |