CN203102219U - Capacitive touch screen structure - Google Patents
Capacitive touch screen structure Download PDFInfo
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- CN203102219U CN203102219U CN 201220747496 CN201220747496U CN203102219U CN 203102219 U CN203102219 U CN 203102219U CN 201220747496 CN201220747496 CN 201220747496 CN 201220747496 U CN201220747496 U CN 201220747496U CN 203102219 U CN203102219 U CN 203102219U
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Abstract
The utility model discloses a capacitive touch screen structure. The capacitive touch screen structure comprises a polymethyl methacrylate layer, a liquid crystal display (LCD), a first sensing film layer with an ITO sensing electrode pattern and a second sensing film layer with an ITO sensing electrode pattern, wherein the polymethyl methacrylate layer and the first sensing film layer are bonded through a first OCA optical adhesive layer, the first sensing film layer and the second sensing film layer are bonded through a second OCA optical adhesive layer, the upper surface of the polymethyl methacrylate layer and a PET film layer are bonded through a third OCA optical adhesive layer, the surface, in contact with the third optical adhesive layer, of the PET film layer is coated with a printing ink layer, and the printing ink layer is located in an edge area of the PET film layer so that a display area is formed in the central area of the PET film layer. The capacitive touch screen layer structure has the advantages that usage amount of the OCA optical adhesive layers is reduced, production of bubbles is avoided, and meanwhile production efficiency and defect-free rate are improved.
Description
Technical field
The utility model relates to a kind of capacitance touch screen, relates in particular to a kind of capacitance touch screen structure.
Background technology
Capacitive touch screen is four layers of compound glass screen; the inside surface of glass screen and interlayer respectively scribble one deck ITO, and outermost layer is a skim silicon soil glassivation, and interlayer ITO coating is as workplace; draw four electrodes on four angles, internal layer ITO is that screen layer is to guarantee good working environment.When finger touch was on metal level, because people's bulk electric field, user and touch screen surface formed with a coupling capacitance, and for high-frequency current, electric capacity is direct conductor, so finger siphons away a very little electric current from contact point.This electric current divides the electrode on from touch-screen four jiaos and flows out, and the electric current of these four electrodes of flowing through is directly proportional with the distance of pointing four jiaos, and controller passes through the accurate Calculation to these four current ratios, draws touch point position.Form from the capacitive touch screen structure, its glass substrate occupies very big proportion; And during practical application, capacitance touch screen often all need embed in the corresponding electronic product, ink lay is to be printed on the glass-based flaggy in the existing capacitance touch screen, the thickness of ink lay that causes being positioned at the edge is thicker, and the OCA optics glue-line that the middle section that is positioned at ink lay needs should cost an arm and a leg with bonding middle section and the OCA optics glue-line that also needs to fill ink lay of lower floor, thereby cause OCA optical cement layer thickness thicker, and be easy to generate bubble, so cost has increased greatly; Secondly, the glass-based flaggy prints and adhesion technique simultaneously, is unfavorable for the raising of production efficiency and yield.Therefore how to reduce the use amount of OCA optics glue-line, avoid the generation of bubble, simultaneously, enhance productivity and yield, become the direction that those skilled in the art make great efforts.
Summary of the invention
The utility model provides a kind of capacitance touch screen structure, this capacitance touch screen structure decrease the use amount of OCA optics glue-line, avoided the generation of bubble; Simultaneously, also enhance productivity and yield.
For achieving the above object, the technical solution adopted in the utility model is: a kind of capacitance touch screen structure, comprise polymethyl methacrylate layers, LCD liquid crystal display and have the first sensing film layer, the second sensing film layer of ITO sensing electrode figure respectively, bonding between the described polymethyl methacrylate layers and the first sensing film layer by an OCA optics glue-line, bonding between the described first sensing film layer and the second sensing film layer by the 2nd OCA optics glue-line;
The upper surface of described polymethyl methacrylate layers is bonding by the 3rd an OCA optics glue-line and a PET thin layer, surface coverage one ink lay that described PET thin layer contacts with the 3rd OCA optics glue-line, this ink lay is positioned at the fringe region of PET thin layer, thereby forms the viewing area at described PET thin layer middle section.
Further improved technical scheme is as follows in the technique scheme:
In the such scheme, the described first sensing film layer, the second sensing film layer are PET film, polypropylene film, polyethylene film or polyvinyl chloride film.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
The utility model capacitance touch screen structure, bonding between its polymethyl methacrylate layers and the first sensing film layer by an OCA optics glue-line, bonding between the first sensing film layer and the second sensing film layer by the 2nd OCA optics glue-line, the upper surface of polymethyl methacrylate layers is bonding by the 3rd an OCA optics glue-line and a PET thin layer, surface coverage one ink lay that described PET thin layer contacts with the 3rd OCA optics glue-line, this ink lay is positioned at the fringe region of PET thin layer, thereby form the viewing area at described PET thin layer middle section, thereby reduced the use amount of OCA optics glue-line, avoided the generation of bubble, simultaneously, also enhance productivity and yield.
Description of drawings
Accompanying drawing 1 is the utility model capacitance touch screen structural representation.
In the above accompanying drawing: 1, polymethyl methacrylate layers; 2, the first sensing film layer; 3, LCD liquid crystal display; 4, an OCA optics glue-line; 5, the 2nd OCA optics glue-line; 6, PET thin layer; 7, ink lay; 8, viewing area; 9, the second sensing film layer; 10, the 3rd OCA optics glue-line.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment 1: a kind of capacitance touch screen structure, comprise polymethyl methacrylate layers 1, LCD liquid crystal display 3 and have the first sensing film layer 2, the second sensing film layer 9 of ITO sensing electrode figure respectively, bonding between the described polymethyl methacrylate layers 1 and the first sensing film layer 2 by an OCA optics glue-line 4, bonding between the described first sensing film layer 2 and the second sensing film layer 9 by the 2nd OCA optics glue-line 5;
The upper surface of described polymethyl methacrylate layers 1 is bonding by the 3rd an OCA optics glue-line 10 and a PET thin layer 6, surface coverage one ink lay 7 that described PET thin layer 6 contacts with the 3rd OCA optics glue-line 10, this ink lay 7 is positioned at the fringe region of PET thin layer 6, thereby forms viewing area 8 at described PET thin layer 6 middle sections.
The above-mentioned first sensing film layer 2, the second sensing film layer 9 are PET film PET.
Embodiment 2: a kind of capacitance touch screen structure, comprise polymethyl methacrylate layers 1, LCD liquid crystal display 3 and have the first sensing film layer 2, the second sensing film layer 9 of ITO sensing electrode figure respectively, bonding between the described polymethyl methacrylate layers 1 and the first sensing film layer 2 by an OCA optics glue-line 4, bonding between the described first sensing film layer 2 and the second sensing film layer 9 by the 2nd OCA optics glue-line 5;
The upper surface of described polymethyl methacrylate layers 1 is bonding by the 3rd an OCA optics glue-line 10 and a PET thin layer 6, surface coverage one ink lay 7 that described PET thin layer 6 contacts with the 3rd OCA optics glue-line 10, this ink lay 7 is positioned at the fringe region of PET thin layer 6, thereby forms viewing area 8 at described PET thin layer 6 middle sections.
The above-mentioned first sensing film layer 2, the second sensing film layer, 9 polyvinyl chloride film PVC.
When adopting above-mentioned capacitance touch screen structure, bonding between its polymethyl methacrylate layers and the first sensing film layer by an OCA optics glue-line, bonding between the first sensing film layer and the second sensing film layer by the 2nd OCA optics glue-line, the upper surface of polymethyl methacrylate layers is bonding by the 3rd an OCA optics glue-line and a PET thin layer, surface coverage one ink lay that described PET thin layer contacts with the 3rd OCA optics glue-line, this ink lay is positioned at the fringe region of PET thin layer, thereby form the viewing area at described PET thin layer middle section, thereby reduced the use amount of OCA optics glue-line, avoided the generation of bubble, simultaneously, also enhance productivity and yield.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (2)
1. capacitance touch screen structure, it is characterized in that: comprise polymethyl methacrylate layers (1), LCD liquid crystal display (3) and have the first sensing film layer (2), the second sensing film layer (9) of ITO sensing electrode figure respectively, bonding between the described polymethyl methacrylate layers (1) and the first sensing film layer (2) by an OCA optics glue-line (4), bonding between the described first sensing film layer (2) and the second sensing film layer (9) by the 2nd OCA optics glue-line (5);
The upper surface of described polymethyl methacrylate layers (1) is bonding by the 3rd an OCA optics glue-line (10) and a PET thin layer (6), surface coverage one ink lay (7) that described PET thin layer (6) contacts with the 3rd OCA optics glue-line (10), this ink lay (7) is positioned at the fringe region of PET thin layer (6), thereby forms viewing area (8) at described PET thin layer (6) middle section.
2. capacitance touch screen structure according to claim 1 is characterized in that: the described first sensing film layer (2), the second sensing film layer (9) are PET film (PET), polypropylene film (PP), polyethylene film (PE) or polyvinyl chloride film (PVC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220747496 CN203102219U (en) | 2012-12-31 | 2012-12-31 | Capacitive touch screen structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220747496 CN203102219U (en) | 2012-12-31 | 2012-12-31 | Capacitive touch screen structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203102219U true CN203102219U (en) | 2013-07-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220747496 Expired - Lifetime CN203102219U (en) | 2012-12-31 | 2012-12-31 | Capacitive touch screen structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203102219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109871160A (en) * | 2018-05-29 | 2019-06-11 | 广州视源电子科技股份有限公司 | Electromagnetic touch screen, terminal equipment and preparation method of electromagnetic touch screen |
-
2012
- 2012-12-31 CN CN 201220747496 patent/CN203102219U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109871160A (en) * | 2018-05-29 | 2019-06-11 | 广州视源电子科技股份有限公司 | Electromagnetic touch screen, terminal equipment and preparation method of electromagnetic touch screen |
| CN109871160B (en) * | 2018-05-29 | 2021-08-13 | 广州视源电子科技股份有限公司 | Electromagnetic touch screen, terminal equipment and preparation method of electromagnetic touch screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 223900 Sihong Province Economic Development Zone, Suqian, West Ocean West Road, No. 6 Patentee after: JIANGSU SIDIKE NEW MATERIALS SIENCE & TECHNOLOGY Co.,Ltd. Address before: 215400 Taicang, Suzhou, Taicang Economic Development Zone, Qingdao West Road, No. 11, No. Patentee before: SUZHOU SIDIKE NEW MATERIALS SIENCE & TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |