CN201383138Y

CN201383138Y - Novel projection-type touch screen utilizing capacitive technology

Info

Publication number: CN201383138Y
Application number: CN200920130479U
Authority: CN
Inventors: 白格雷
Original assignee: Touch International Pacific Ltd
Current assignee: Touch International Pacific Ltd
Priority date: 2009-04-03
Filing date: 2009-04-03
Publication date: 2010-01-13
Anticipated expiration: 2019-04-03

Abstract

A novel projection-type touch screen utilizing the capacitive technology comprises two pieces of glasses, two transparent conducting films, two flexible circuit boards, and a layer of transparent optical cement. The transparent conducting films are bonded with the transparent optical cement, wherein circuit layers are distributed on inner sides of the two transparent conducting films; and the two flexible circuit boards are pressed at circuit outputting terminals of the glasses bonded with transparent conducting films. The structure can form the novel projection-type touch screen utilizing capacitive technology and having the two-layer glass structure.

Description

A kind of novel projecting type capacitor technology touch-screen

Technical field

The utility model relates to a kind of touch-screen, refers more particularly to a kind of two-layer ito glass structure that has, a kind of novel projecting type capacitor technology touch-screen of real multiple spot electric capacity.

Background technology

Along with using computer as the growing with each passing day of information source, touch-screen with its be easy to use, sturdy and durable, reaction velocity fast, save advantages such as space, makes system designers more and more feel to use touch-screen to have sizable superiority really.Touch-screen appears at has only short several years so far on the Chinese market, this new information terminal apparatus also is not many people's contacts and understands, comprise the system designer that some are just planning to use touch-screen, also all touch-screen is used as dispensable outfit, from the stage that universal course and China's information terminal of developed country's touch-screen is in, this idea also has certain ubiquity.In fact, the appearance of touch-screen is a revolution that makes the information terminal man-machine interface, gives its brand-new looks.The system designers of developed country and China take the lead in using the system designers of touch-screen clearly to know, touch-screen no longer has been dispensable thing for the man-machine interface of various applications, and the configuration that is absolutely necessary.It has great convenience for the user, even the people that peripheral hardware operation interfaces such as keyboard are known nothing also can realize by finger touch in the same old way, make the equipment in touch-screen field show bigger glamour.Main four big kinds of touch-screen have: resistive technologies touch-screen, surface acoustic wave technique touch-screen, capacitance technology touch-screen, infrared technique touch-screen.The capacitance technology touch screen structure also has multiple, and the multiple spot capacitive touch screen of single-glass structure commonly used also can be supported multiple point touching and request for utilization, but single-glass structure manufacturing process complexity, the manufacturing cost height.

The utility model content

The purpose of this utility model is to provide a kind of manufacturing process simple, reduces a kind of novel projecting type capacitor technology touch-screen of the manufacturing cost of capacitance technology touch-screen.

For achieving the above object, the utility model provides a kind of novel projecting type capacitor technology touch-screen, and it comprises two sheet glass, two nesa coatings, two flexible circuit board, a slice transparent optical cement.These two nesa coatings and glass are fitted by transparent optical cement, and wherein line layer is distributed in the inboard of two transparent conducting glass; These two flexible circuit board are pressed together on the line output of the glass that is fitted with nesa coating respectively, just constitute the novel projecting type capacitor technology with layer glass structure and touch institute.

The utility model adopts the layer glass structure, with the technology that the single-glass repeated structure plates two-layer ITO, split into single-glass plating individual layer ITO, then two-layer ito glass is fitted by transparent optical cement, simple to reach manufacturing process, as to reduce production costs purpose.

The utlity model has following beneficial effect: manufacturing process is simple, greatly reduces the manufacturing cost of capacitance technology touch-screen.

Description of drawings

Fig. 1 is a kind of novel projecting type capacitor technology touch-screen decomposing state structural drawing of the utility model.

Embodiment

See also Fig. 1, a kind of novel projecting type capacitor technology touch-screen, it comprises two sheet glass (1), two nesa coatings (2), two flexible circuit board (3), a slice transparent optical cement (4);

The glass (1) of these two nesa coatings (2) is fitted by transparent optical cement (4), and wherein line layer is distributed in the inboard of two transparent conducting glass; These two flexible circuit board (3) are pressed together on the line output of the glass (1) that is fitted with nesa coating (2) respectively.

The principle of work of this novel projecting type capacitor technology touch-screen is as follows: it is by the induction of human body, when finger touch is on surface layer of glass, because people's bulk electric field, user and touch screen surface form a coupling capacitance, for high-frequency current, electric capacity is direct conductor, so finger siphons away a very little electric current from contact point.Controller is by X, and Y draws touch point position information to the accurate Calculation of scanning to these four current ratios.

The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction; though the utility model discloses as above with preferred embodiment; yet be not in order to limit the utility model; any those skilled in the art; in not breaking away from the technical solutions of the utility model scope; when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations; in every case be the content that does not break away from technical solutions of the utility model; according to technical spirit of the present utility model to any simple modification that above embodiment did; equivalent variations and modification all still belong in the protection domain of technical solutions of the utility model.

Claims

1, a kind of novel projecting type capacitor technology touch-screen, it is characterized in that: it comprises two sheet glass (1), two nesa coatings (2), two flexible circuit board (3), a slice transparent optical cement (4); These two nesa coatings (2) are fitted by transparent optical cement (4) with glass (1), and wherein line layer is distributed in the inboard of two transparent conducting glass; These two flexible circuit board (3) are pressed together on the line output of the glass (1) that is fitted with nesa coating (2) respectively.