CN204331677U - A kind of compound glass capacitive touch screen - Google Patents
A kind of compound glass capacitive touch screen Download PDFInfo
- Publication number
- CN204331677U CN204331677U CN201420793342.9U CN201420793342U CN204331677U CN 204331677 U CN204331677 U CN 204331677U CN 201420793342 U CN201420793342 U CN 201420793342U CN 204331677 U CN204331677 U CN 204331677U
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- conducting film
- ito conducting
- optical cement
- cement layer
- touch screen
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Abstract
The utility model discloses a kind of compound glass capacitive touch screen, comprise upper glass plates and lower glass plate, and an ITO conducting film, the 2nd ITO conducting film and the 3rd ITO conducting film be located between upper glass plates and lower glass plate, the lower surface of the one ITO conducting film is provided with the first sensor arranged by spacing, the lower surface of the 2nd ITO conducting film is provided with the second sensor arranged by spacing, the lower surface of the 3rd ITO conducting film is provided with the 3rd sensor, and an ITO conducting film, the 2nd ITO conducting film and the 3rd ITO conducting film are all electrically connected with flexible circuit board.This double glazing capacitive touch screen is by force anti-interference, and arranges OCA optical cement layer between every two ITO conducting films, adds transmitance, stable performance.This double glazing capacitive touch screen structure is well arranged in addition, and structure is simple, easy to make.
Description
Technical field
the utility model relates to capacitance-type touch screen technology field, more particularly relates to a kind of compound glass capacitive touch screen.
Background technology
Current existing touch-screen is primarily of touch detection part and touch-control IC (signal processor) composition, touching detection part is arranged on before indicator screen, for detecting user touch location, being transferred to touch-control IC after reception and converting thereof into contact coordinate thus the position data determining contact.According to the principle of work of touch-screen and the medium of transmission information, touch-screen can be divided into four kinds, be respectively resistance-type, capacitor induction type, infrared-type and surface acoustic wave type, the ultimate principle of capacitive touch screen utilizes the electric current of human body to respond to carry out work, capacitive touch screen is one piece of two layers of compound glass screen, the inside surface interlayer of glass screen scribbles ITO conducting film, outermost layer is glassivation, ITO coating is as workplace, four electrodes are drawn at four angles, when finger touch is on screen, due to human body electric field, user and touch screen surface form a coupling capacitance, a very little electric current is siphoned away from contact point so point, this electric current flows out respectively from the electrode the corner of touch-screen, and the electric current flowing through these four electrodes is directly proportional to the distance of finger to corner, controller is by the accurate Calculation to these four current ratios, draw the position of touch point.
Capacitive touch screen of the prior art is all generally adopt one deck or the ITO conducting film of double-layer structure, although adopt the transmitance of the ITO conducting film of one deck or double-layer structure high, but because capacitive touch screen is in various electromagnetic environment for a long time, adopt one deck or two-layer ITO conducting film to exist in antijamming capability significantly not enough.
Utility model content
The technical matters that the utility model solves is the capacitive touch screen with compound glass providing a kind of antijamming capability strong.
For the technical scheme solving the problems of the technologies described above employing is: a kind of compound glass capacitive touch screen, comprise upper glass plates and lower glass plate, and the ITO conducting film be located between upper glass plates and lower glass plate, 2nd ITO conducting film and the 3rd ITO conducting film, the lower surface of the one ITO conducting film is provided with the first sensor arranged by spacing, the lower surface of the 2nd ITO conducting film is provided with the second sensor arranged by spacing, the lower surface of the 3rd ITO conducting film is provided with the 3rd sensor, one ITO conducting film, 2nd ITO conducting film and the 3rd ITO conducting film are all electrically connected with flexible circuit board.
Further, also comprise an OCA optical cement layer, the 2nd OCA optical cement layer and the 3rd OCA optical cement layer, an OCA optical cement layer is located between described upper glass plates and a described ITO conducting film; 2nd OCA optical cement layer is located between a described ITO conducting film and described 2nd ITO conducting film; 3rd OCA optical cement layer is located between described 2nd ITO conducting film and described 3rd ITO conducting film.
Further, a described OCA optical cement layer, described 2nd OCA optical cement layer, described 3rd OCA optical cement layer have equal thickness; A described ITO conducting film, described 2nd ITO conducting film, described 3rd ITO conducting film have equal thickness.
Further, the thickness of a described OCA optical cement layer, described 2nd OCA optical cement layer, described 3rd OCA optical cement layer is the twice of a described ITO conducting film, described 2nd ITO conducting film, described 3rd ITO conducting film thickness.
Further, also comprise the 4th optical cement layer, the 4th optical cement layer is located between described 3rd ITO conducting film and described lower glass plate, and the lower surface of the 4th optical cement layer is provided with protective seam, is provided with packing ring between protective seam and described lower glass plate.
Further, the thickness of described protective seam is 0.042mm.
The beneficial effects of the utility model are: double glazing capacitive touch screen of the present utility model, an ITO conducting film is provided with between upper glass plates and lower glass plate, 2nd ITO conducting film and the 3rd ITO conducting film, the lower surface of the one ITO conducting film is provided with first sensor, the lower surface of the 2nd ITO conducting film is provided with the second sensor, the lower surface of the 3rd ITO conducting film is provided with the 3rd sensor, on the basis of the two-layer ITO conducting film of prior art, increase by the 3rd ITO conductive film layer, each ITO conducting film arranges corresponding sensor, this double glazing capacitive touch screen is by force anti-interference.And OCA optical cement layer is set between every two ITO conducting films, add transmitance, stable performance.This double glazing capacitive touch screen structure is well arranged in addition, and structure is simple, easy to make.
Accompanying drawing explanation
Fig. 1 is the first example structure figure of the utility model.
Fig. 2 is the utility model the second example structure figure.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figure 1, a kind of compound glass capacitive touch screen, comprise upper glass plates 10 and lower glass plate 20, and the ITO conducting film 30 be located between upper glass plates 10 and lower glass plate 20, 2nd ITO conducting film 40 and the 3rd ITO conducting film 50, the lower surface of the one ITO conducting film 30 is provided with the first sensor 31 arranged by spacing, the lower surface of the 2nd ITO conducting film 40 is provided with the second sensor 41 arranged by spacing, the lower surface of the 3rd ITO conducting film 50 is provided with the 3rd sensor 51, one ITO conducting film 30, 2nd ITO conducting film 40 and the 3rd ITO conducting film 50 are all electrically connected with flexible circuit board.The structure of this three layers of ITO conducting film adds the antijamming capability of capacitive touch screen, even if be in the very strong environment of electromagnetic wave, this capacitive touch screen also can not be interfered.
Also comprising an OCA optical cement layer 60, the 2nd OCA optical cement layer 70 and the 3rd OCA optical cement layer the 80, one OCA optical cement layer 60 is located between upper glass plates 10 and an ITO conducting film 30; 2nd OCA optical cement layer 70 is located between an ITO conducting film 30 and the 2nd ITO conducting film 40; 3rd OCA optical cement layer 80 is located between the 2nd ITO conducting film 40 and the 3rd ITO conducting film 50.One OCA optical cement layer 60, the 2nd OCA optical cement layer 70, the 3rd OCA optical cement layer 80 have equal thickness; One ITO conducting film 30, the 2nd ITO conducting film 40, the 3rd ITO conducting film 50 have equal thickness.The thickness of the one OCA optical cement layer 60, the 2nd OCA optical cement layer 70, the 3rd OCA optical cement layer 80 is twices of an ITO conducting film 30, the 2nd ITO conducting film 40, the 3rd ITO conducting film 50 thickness.In the present embodiment, the thickness of an OCA optical cement layer 60, the 2nd OCA optical cement layer 70, the 3rd OCA optical cement layer 80 is 0.05mm, and the thickness of an ITO conducting film 30, the 2nd ITO conducting film 40, the 3rd ITO conducting film 50 is 0.025 mm.OCA optical cement layer is set between every two ITO conducting films, adds transmitance, and make performance more stable.
As shown in Figure 2, also comprise the 4th optical cement layer the 90, four optical cement layer 90 and be located between the 3rd ITO conducting film 50 and lower glass plate 20, the lower surface of the 4th optical cement layer 90 is provided with protective seam 21, is provided with packing ring 22 between protective seam 21 and lower glass plate 20.The thickness of protective seam 21 is 0.042mm, and packing ring 22 is hollow structure, namely has gap between protective seam 21 and lower glass plate 20.
Although double glazing capacitive touch screen of the present utility model is the ITO conducting film adopting three-decker, layer of structure is clearly reasonable in design, and structure is simple, easy to make, without the need to too high technological requirement.
The foregoing is only preferred implementation of the present utility model; not thereby this scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in this scope of patent protection of the present utility model.
Claims (6)
1. a compound glass capacitive touch screen, it is characterized in that: comprise upper glass plates (10) and lower glass plate (20), and the ITO conducting film (30) be located between upper glass plates (10) and lower glass plate (20), 2nd ITO conducting film (40) and the 3rd ITO conducting film (50), the lower surface of the one ITO conducting film (30) is provided with the first sensor (31) arranged by spacing, the lower surface of the 2nd ITO conducting film (40) is provided with the second sensor (41) arranged by spacing, the lower surface of the 3rd ITO conducting film (50) is provided with the 3rd sensor (51), one ITO conducting film (30), 2nd ITO conducting film (40) and the 3rd ITO conducting film (50) are all electrically connected with flexible circuit board.
2. a kind of compound glass capacitive touch screen according to claim 1, it is characterized in that: also comprise an OCA optical cement layer (60), the 2nd OCA optical cement layer (70) and the 3rd OCA optical cement layer (80), an OCA optical cement layer (60) is located between described upper glass plates (10) and a described ITO conducting film (30); 2nd OCA optical cement layer (70) is located between a described ITO conducting film (30) and described 2nd ITO conducting film (40); 3rd OCA optical cement layer (80) is located between described 2nd ITO conducting film (40) and described 3rd ITO conducting film (50).
3. a kind of compound glass capacitive touch screen according to claim 2, is characterized in that: a described OCA optical cement layer (60), described 2nd OCA optical cement layer (70), described 3rd OCA optical cement layer (80) have equal thickness; A described ITO conducting film (30), described 2nd ITO conducting film (40), described 3rd ITO conducting film (50) have equal thickness.
4. a kind of compound glass capacitive touch screen according to claim 3, is characterized in that: the thickness of a described OCA optical cement layer (60), described 2nd OCA optical cement layer (70), described 3rd OCA optical cement layer (80) is the twice of a described ITO conducting film (30), described 2nd ITO conducting film (40), described 3rd ITO conducting film (50) thickness.
5. a kind of compound glass capacitive touch screen according to claim 1; it is characterized in that: also comprise the 4th optical cement layer (90); 4th optical cement layer (90) is located between described 3rd ITO conducting film (50) and described lower glass plate (20); the lower surface of the 4th optical cement layer (90) is provided with protective seam (21), is provided with packing ring (22) between protective seam (21) and described lower glass plate (20).
6. a kind of compound glass capacitive touch screen according to claim 5, is characterized in that: the thickness of described protective seam (21) is 0.042mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793342.9U CN204331677U (en) | 2014-12-16 | 2014-12-16 | A kind of compound glass capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793342.9U CN204331677U (en) | 2014-12-16 | 2014-12-16 | A kind of compound glass capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204331677U true CN204331677U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420793342.9U Expired - Fee Related CN204331677U (en) | 2014-12-16 | 2014-12-16 | A kind of compound glass capacitive touch screen |
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| Country | Link |
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| CN (1) | CN204331677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688417A (en) * | 2017-10-11 | 2018-02-13 | 中航华东光电有限公司 | Novel and multifunctional capacitance touch screen |
-
2014
- 2014-12-16 CN CN201420793342.9U patent/CN204331677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688417A (en) * | 2017-10-11 | 2018-02-13 | 中航华东光电有限公司 | Novel and multifunctional capacitance touch screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160520 Address after: 518103, Shenzhen, Guangdong, Fuyong Baoan District Street on the south side of Great Ocean Road fourth, 1 Patentee after: Dijing Optoelectronics (Shenzhen) Co.,Ltd. Address before: 518108 A5 building, Phoenix third industrial park, Fuyong street, Guangdong, Shenzhen, Patentee before: SHENZHEN DJN OPTRONICS 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: 20150513 Termination date: 20211216 |