CN205015873U

CN205015873U - Touch screen

Info

Publication number: CN205015873U
Application number: CN201520601355.6U
Authority: CN
Inventors: 于浩; 王兆财; 谢代洲; 蓝丽娟; 李华明; 江海; 肖辉鸿; 陈石明; 高敏; 李超; 韩喆; 徐长远
Original assignee: Shenzhen Jinghua Displays Co ltd
Current assignee: Shenzhen Jinghua Display Electronics Co Ltd
Priority date: 2015-08-11
Filing date: 2015-08-11
Publication date: 2016-02-03
Anticipated expiration: 2025-08-11

Abstract

The utility model provides a touch screen, includes two -layer glass, ITO layer and glue, two -layer glass is outer glass and bottom glass respectively, form a cavity structure between outer glass and the bottom glass, be full of the glue in the cavity, the ITO level in in the space that outer glass and bottom glass encircle a city, wherein the X layer sensing on ITO layer is walked the line and is located outer glass's cavity is inside and paste on outer glass, the Y layer sensing on ITO layer is walked the line and is located bottom glass's cavity is inside and paste on bottom glass. The utility model discloses an increase and set up one deck glass to set up the ITO shielding layer bottom glass, such structure makes touch screen's interference killing feature ability strong, and the effect is better.

Description

A kind of touch-screen

Technical field

The utility model relates to a kind of touch-screen.

Background technology

In industrial circle, display module often works in harsh applied environment, and electromagnetic radiation is strong, and capacitance touch screen display module needs directly in the face of multiple electromagnetic radiation.Simultaneously because equipment needs, the cover plate of touch-screen increase in demand 2mm ~ 6mm, requiring touch-screen to possess needs the sensitivity of superelevation.Under this application conditions, touch-screen is more easily subject to the interference from bottom interference source, and interference source comprises TFT/OLED and shows module, motherboard circuit drive plate etc.To such an extent as to touch-screen cannot work normally, occur that touch-screen is reported a little or the breakneck bad phenomenon such as insensitive automatically.Especially, in medicine equipment, definitely insensitive situation can not be there is.

For reducing the interference of touch-screen, usually need to add a screen layer at the bottom of touch-screen.Traditional settling mode is, increases the glass of one deck with shielding stratum in the bottom of touch-screen module.But the thickness of this shield glass itself will affect the integral thickness of touch-screen display module.Adopt this kind of mode, the requirement of client to product thickness cannot be met.

Utility model content

For overcoming the deficiencies in the prior art, the utility model provides a kind of highly sensitive effective touch-screen and preparation method thereof.

The technical scheme that the utility model provides is:

A kind of touch-screen, comprises layer glass, ITO layer and glue;

Described layer glass is respectively glass outer and bottom glass, forms a cavity structure, be full of glue in cavity between described glass outer and bottom glass; Described ITO layer is arranged in the cavity that described glass outer and bottom glass surround, and wherein the X layer sensing cabling of ITO layer is positioned at cavity inside and is affixed on glass outer, and the Y layer sensing cabling of described ITO layer is positioned at cavity inside and is affixed on bottom glass.

Preferably, also comprise a screen layer, described screen layer is positioned at described bottom glass outer and is closely affixed on bottom glass.

Preferably, the impedance of described screen layer is 80 ~ 300 Ω/mm ².

Preferably, described screen layer is ITO screen layer.

Preferably, between the X layer sensing cabling of ITO layer and the Y layer sensing cabling of ITO layer by the electrical connection of silver slurry point.

Preferably, also comprise flexible PCB and touch chip, described touch chip is positioned on flexible PCB, and described flexible PCB is electrically connected with glass outer by conductive tape, thus the touch-control circuit at touch chip place is electrically connected with touch-screen.

Preferably, described conductive tape is ACF adhesive tape.

The beneficial effects of the utility model:

The utility model arranges one deck glass by increase, and arranges ITO screen layer at Glass base, and such structure makes the antijamming capability energy of touch-screen strong, better effects if.

Accompanying drawing explanation

Fig. 1 is the structural representation of touch-screen of the present utility model;

Fig. 2 is the touch-screen of touch-screen of the present utility model and the schematic diagram of flexible PCB combination.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As depicted in figs. 1 and 2, a kind of touch-screen, comprises layer glass, and described layer glass is respectively glass outer 1 and bottom glass 5; Form a cavity structure between described glass outer 1 and bottom glass 5, in cavity, be full of glue 3; Described ITO layer is arranged in the cavity that described glass outer 1 and bottom glass 5 surround, wherein the X layer sensing cabling 2 of ITO layer is horizontal sensing cabling, it is positioned at cavity inside and is affixed on glass outer 1, the Y layer sensing cabling 4 of described ITO layer is vertical cabling, and it is positioned at cavity inside and is affixed on bottom glass 5.Also comprise a screen layer 6, described screen layer 6 is positioned at the outside of described bottom glass 5 and is closely affixed on bottom glass 5.Described screen layer can be ITO screen layer, and its impedance is 80 ~ 300 Ω/mm ².Described ITO screen layer is the screen layer of whole, does not etch it.Use glass of the present utility model is 0.7mm, and ensures that thickness is no more than 1.45mm when not adding ITO screen layer.

By the electrical connection of silver slurry point between the X layer sensing cabling 2 of ITO layer of the present utility model and the Y layer sensing cabling 4 of ITO layer.Flexible PCB 7 and touch chip 8 are the signal exit of touch-screen, described touch chip 8 is positioned on flexible PCB 7, described flexible PCB 7 is electrically connected with glass outer 1 by ACF adhesive tape, thus the touch-control circuit at touch chip 8 place is electrically connected with touch-screen.

Claims

1. a touch-screen, is characterized in that:

Comprise layer glass, ITO layer and glue;

2. touch-screen according to claim 1, is characterized in that:

Also comprise a screen layer, described screen layer is positioned at described bottom glass outer and is closely affixed on bottom glass.

3. touch-screen according to claim 2, is characterized in that:

The impedance of described screen layer is 80 ~ 300 Ω/mm ².

4. the touch-screen according to Claims 2 or 3, is characterized in that:

Described screen layer is ITO screen layer.

5. touch-screen according to claim 1, is characterized in that:

By the electrical connection of silver slurry point between the X layer sensing cabling of ITO layer and the Y layer sensing cabling of ITO layer.

6. touch-screen according to claim 1, is characterized in that:

Also comprise flexible PCB and touch chip, described touch chip is positioned on flexible PCB, and described flexible PCB is electrically connected with glass outer by conductive tape, thus the touch-control circuit at touch chip place is electrically connected with touch-screen.

7. touch-screen according to claim 6, is characterized in that:

Described conductive tape is ACF adhesive tape.