CN202205186U - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
- Publication number
- CN202205186U CN202205186U CN2011203289439U CN201120328943U CN202205186U CN 202205186 U CN202205186 U CN 202205186U CN 2011203289439 U CN2011203289439 U CN 2011203289439U CN 201120328943 U CN201120328943 U CN 201120328943U CN 202205186 U CN202205186 U CN 202205186U
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- CN
- China
- Prior art keywords
- printed circuit
- touch screen
- glass cover
- faced adhesive
- capacitive touch
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a capacitive touch screen which comprises an ITO (Indium Tin Oxide) glass substrate with a printed circuit layer on one side, and a glass cover plate covered on the outer side of the printed circuit layer of the ITO glass substrate, wherein, double-faced adhesive tapes are arranged near the edges between the printed circuit layer and the glass cover plate for bonding the printed circuit layer and the glass cover plate; and uniformly-distributed transparent lattice points are arranged on the surface of the printed circuit on the inner sides of the double-faced adhesive tapes. In the utility model, the general double-faced adhesive tapes are only required to be arranged near the edges, the ITO glass substrate and the glass cover plate can be adhered together with good flatness, and no bubble is generated at the part of a middle transparent window, so the operation is simple, the manufacturing cost can be saved by more than 20 percent, the production yield reaches more than 99 percent, and the capacitance calculation accuracy is higher. As for a large-size touch screen, the added transparent lattice points can effectively prevent the glass cover plate from pressing the ITO glass plate directly, thus avoiding rainbow texture. When rework is required, only the edge part is required to be parted, so the middle transparent window can not be damaged.
Description
Technical field
The utility model relates to the touch-screen field, relates in particular to a kind of capacitive touch screen.
Background technology
At present, existing capacitance touch screen (being called for short " capacitance plate ") mainly adopts the frame mode of upper strata glass cover-plate and lower floor's ito glass plate, fits with glue or optical cement between the layer glass plate.But this structure is directly two glass plates of hard to be fitted, and needs the hard unit equipment of the hard subsides of corresponding use, and the cost of equipment cost and glue and optical cement is all very high, and the applying cost of 7 inches capacitance plates is about 10 dollars.
In addition, the glue that the middle employing of existing capacitance plate is whole carries out bonding, and be easy to generate bubble and cause the product yield low in bond site, and, when product needed is done over again, be difficult to the layer glass plate is intactly separated.
The utility model content
The utility model embodiment technical matters to be solved is, a kind of capacitive touch screen is provided, and its cost is low, and is difficult for producing deformation, also can not produce the rainbow line.
For solving the problems of the technologies described above; The utility model provides following technical scheme: a kind of capacitive touch screen; Comprise the glass cover-plate that a side is provided with the ito glass substrate of layer printed circuit board and is placed on the layer printed circuit board outside on the ito glass substrate, each edge of leaning between layer printed circuit board and the glass cover-plate is provided with the double faced adhesive tape that is used for bonding layer printed circuit board and glass cover-plate.
Further, the double faced adhesive tape of each edge is spliced into frame shaped.
Further, on the P.e.c. laminar surface that is positioned at the inboard ito glass substrate of double faced adhesive tape also seal be provided with equally distributed transparent site.
Further, said transparent site is array and evenly distributes, and its line space and column pitch are 2 ± 0.1mm, and the diameter of transparent site is 0.03 ± 0.01mm.
Further, the width of said double faced adhesive tape is 1.5 ~ 4.5cm.
Further, said ito glass substrate and glass cover-plate are tempered glass.
Through adopting technique scheme; The utility model has following beneficial effect at least: come bonding ito glass substrate and glass cover-plate through adopting common double faced adhesive tape; Only need to get final product in that double faced adhesive tape formation frame bonding coat is set by edge; The good planeness of fitting, the transparent window position at middle part can not produce bubble.And simple to operate, the product yield can reach more than 99%, and the electric capacity counting accuracy is higher.And to the large scale touch-screen, also can be on ito glass substrate the printing transparent site, effectively avoid glass cover-plate directly to press and contact the ito glass plate, avoid producing the rainbow line; The double faced adhesive tape cost only needs 2-3 Renminbi, does not also need special hard subsides computer hardware, and production cost can be saved more than 20%.In addition, in the time of need doing over again,, only need separate the marginal portion and get final product, can not damage the central, clear form with blade or iron wire owing to have only the marginal portion that double faced adhesive tape is arranged.
Description of drawings
Fig. 1 is the decomposing schematic representation of the utility model capacitive touch screen.
Fig. 2 is the cross sectional representation of the utility model capacitive touch screen.
Embodiment
Please refer to Fig. 1 and Fig. 2, the utility model provides a kind of capacitive touch screen, comprises ito glass substrate 1, glass cover-plate 2 and double faced adhesive tape 3.
One side of ito glass substrate 1 is provided with layer printed circuit board 10.And glass cover-plate 2 promptly is placed on the outside of the layer printed circuit board 10 on the ito glass substrate 1.Said ito glass substrate 1 and glass cover-plate 2 all preferably adopt tempered glass, thereby not yielding.
The main creation part of the utility model is: the double faced adhesive tape 3 that leans on each edge to be provided with to be used for bonding layer printed circuit board 10 and glass cover-plate 2 between layer printed circuit board 10 and glass cover-plate 2.The double faced adhesive tape 3 of each edge frame shaped that can be spliced each other, as shown in Figure 1.Further, the width of said double faced adhesive tape is 1.5 ~ 4.5cm.When concrete the applying; Be earlier double faced adhesive tape to be labelled on the layer printed circuit board 10 of ito glass substrate; The glass cover-plate of fitting again, and the product that posts is put into the deaeration machine utilizes air pressure that double faced adhesive tape is compressed, the flatness of applying is better; Cooperate software to adjust, can effectively solve capacitance plate Coordinate Calculation problem.
And for size at the big touch-screen more than 4.3 inches; Also can be further on the surface of the layer printed circuit board 10 that is positioned at the inboard ito glass substrate 1 of double faced adhesive tape 3 also seal be provided with equally distributed transparent site 32; As can beappreciated from fig. 2, said transparent site 32 specifically is that seal is located on the outside surface of layer printed circuit board 10.Said transparent site is array and evenly distributes, and its line space and column pitch can be preferably 2 ± 0.1mm, and the diameter of transparent site then is preferably 0.03 ± 0.01mm.
The utility model capacitance touch screen can be widely used in industries such as panel computer, mobile phone, GPS, learning machine, PDA, automation equipment, military affairs, vehicle carried video system, vehicle-carrying DVD, touch display.
Claims (6)
1. capacitive touch screen; Comprise the glass cover-plate that a side is provided with the ito glass substrate of layer printed circuit board and is placed on the layer printed circuit board outside on the ito glass substrate; It is characterized in that each edge of leaning between layer printed circuit board and the glass cover-plate is provided with the double faced adhesive tape that is used for bonding layer printed circuit board and glass cover-plate.
2. capacitive touch screen as claimed in claim 1 is characterized in that the double faced adhesive tape of each edge is spliced into frame shaped.
3. according to claim 1 or claim 2 capacitive touch screen is characterized in that, also seal is provided with equally distributed transparent site on the P.e.c. laminar surface that is positioned at the inboard ito glass substrate of double faced adhesive tape.
4. capacitive touch screen as claimed in claim 3 is characterized in that, said transparent site is array and evenly distributes, and its line space and column pitch are 2 ± 0.1mm, and the diameter of transparent site is 0.03 ± 0.01mm.
5. according to claim 1 or claim 2 capacitive touch screen is characterized in that the width of said double faced adhesive tape is 1.5 ~ 4.5cm.
6. capacitive touch screen as claimed in claim 1 is characterized in that said ito glass substrate and glass cover-plate are tempered glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203289439U CN202205186U (en) | 2011-09-02 | 2011-09-02 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203289439U CN202205186U (en) | 2011-09-02 | 2011-09-02 | Capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202205186U true CN202205186U (en) | 2012-04-25 |
Family
ID=45969298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203289439U Expired - Fee Related CN202205186U (en) | 2011-09-02 | 2011-09-02 | Capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202205186U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019486A (en) * | 2012-11-27 | 2013-04-03 | 深圳市百川海奇科技有限公司 | Touch screen assembling method |
| CN103144410A (en) * | 2013-03-27 | 2013-06-12 | 城步新鼎盛电子科技有限公司 | Defoaming method of capacitance touching fitting process |
| CN104461143A (en) * | 2014-12-12 | 2015-03-25 | 江西合力泰科技有限公司 | Touch screen production technique |
-
2011
- 2011-09-02 CN CN2011203289439U patent/CN202205186U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019486A (en) * | 2012-11-27 | 2013-04-03 | 深圳市百川海奇科技有限公司 | Touch screen assembling method |
| CN103019486B (en) * | 2012-11-27 | 2016-01-20 | 深圳市百川海奇科技有限公司 | Touch-screen assemble method |
| CN103144410A (en) * | 2013-03-27 | 2013-06-12 | 城步新鼎盛电子科技有限公司 | Defoaming method of capacitance touching fitting process |
| CN104461143A (en) * | 2014-12-12 | 2015-03-25 | 江西合力泰科技有限公司 | Touch screen production technique |
| CN104461143B (en) * | 2014-12-12 | 2017-09-01 | 江西合力泰科技有限公司 | A kind of touch-screen production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN DEPUTE ELECTRONICS CO., LTD. Free format text: FORMER OWNER: GANZHOU DPT TECHNOLOGY CO.,LTD. Effective date: 20150707 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150707 Address after: 518000 Guangdong city of Shenzhen province Baoan District Xixiang South Street Community Shu Tai Road No. 2 Patentee after: SHENZHEN DPT ELECTRONICS Co.,Ltd. Address before: 341000 Depp special industrial zone, Nankang West Industrial Zone, Ganzhou, Jiangxi Patentee before: Ganzhou DPT Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20200902 |