CN202535640U

CN202535640U - Structure of flexible printed circuit in touch screen

Info

Publication number: CN202535640U
Application number: CN2012203462189U
Authority: CN
Inventors: 罗百世; 李丽娟; 王平心
Original assignee: SHENZHEN WEIYI TECHNOLOGY Co Ltd
Current assignee: SHENZHEN WEIYI TECHNOLOGY Co Ltd
Priority date: 2012-07-17
Filing date: 2012-07-17
Publication date: 2012-11-14
Anticipated expiration: 2022-07-17

Abstract

The utility model provides a structure of a flexible printed circuit (FPC) in a touch screen. An anti-tear line is arranged in the chamfer of an FPC body. Due to the configuration of the anti-tear line in the chamfer of the FPC body, the FPC is prevented being torn due to improper operation or excessively large pull force when being assembled and used, so that the defect rate is reduced.

Description

The structure of FPC in a kind of touch-screen

Technical field

The utility model relates to electric group of formula touch-screen production field, relates in particular to the structure of the FPC that on resistive touch screen, uses.

Background technology

In the production technology of present four-wire ohm touch-screen, existing structure generally comprises (arranging from top to bottom): panel layer, the working lining of reaching the standard grade, the working lining that rolls off the production line, supporting substrate.Panel layer and reach the standard grade between the working lining, roll off the production line and all adopt the optical clear glue bond between working lining and the supporting substrate wherein.The conductive layer of conductive layer and the working lining that rolls off the production line of working lining of reaching the standard grade adopts the double faced adhesive tape combination.Between two-layer circuit, play conduction and do usefulness with FPC (FPC) lead-out wire.

Flexible PCB (Flexible Printed Circuit Board) is claimed " soft board " again, is the printed circuit of processing with flexible insulating substrate, has the advantage that many rigid printed circuit boards do not possess.For example it can free bend, coiling, folding, can require to arrange arbitrarily according to space layout, and move arbitrarily and flexible, thereby reach integrated that the components and parts assembling is connected with lead at three dimensions.Utilize FPC can dwindle the volume of electronic product greatly, be suitable for the needs that electronic product develops to high density, miniaturization, highly reliable direction.Therefore, FPC in space flight, arrived widely and to have used.

On field such as also tool military affairs of FPC, mobile communication, laptop computer, computer peripheral equipment, PDA, digital camera or the product good thermal diffusivity and solderability must be arranged and be easy to advantages such as load, integrated cost be lower, the design that soft or hard combines has also remedied flexible parent metal not enough slightly on the element bearing capacity to a certain extent.

Flexible print circuit board has the branch of single face, two-sided and multi-layer sheet.The base material that is adopted is main with polyimide copper clad lamination.This kind material thermal resistance height, dimensional stability are good, form final products with the coverlay that has mechanical protection and good electrical insulation property concurrently through compacting.Top layer and inner conductor two-sided, multilayer printed wiring board are realized being electrically connected of ectonexine circuit through metallization.

In the production technology of present four-wire ohm touch-screen.The design of FPC lead-out wire is to anti-tear less demanding, in use FPC tear the territory break off cause bad.

The utility model content

The purpose of the utility model is to overcome in the production technology of present four-wire ohm touch-screen.The design of FPC lead-out wire is to anti-tear less demanding, and in use FPC tears the territory disconnection and causes bad deficiency, and the structure of FPC in a kind of touch-screen is provided.

The purpose of the utility model realizes through following technical scheme: the structure of FPC in a kind of touch-screen, the chamfering place of FPC body is a circular arc, at the chamfering place of FPC body an anti-tear line is set.

The utility model increases an anti-tear line at the chamfering place of FPC, avoid product in assembling and use, to tear FPC when excessive because of misoperation or pulling force.Reduce bad.

Below in conjunction with accompanying drawing and embodiment the utility model is further explained.

Description of drawings

Fig. 1 is the structural representation of FPC in the utility model touch-screen.

Among the figure, 1, the FPC body, 2, anti-tear line.

Embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

See also shown in Figure 1ly, present embodiment is provided with an anti-tear line 2 in order to reduce the structure that PFC in use tears FPC in a kind of touch-screen that provides to FPC because of misoperation or pulling force when excessive at the chamfering place of FPC body 1.In the present embodiment, the design of FPC lead-out wire increases an anti-tear line 2 at the chamfering place of FPC body, avoids product in assembling and use, to tear FPC when excessive because of misoperation or pulling force.Reduce bad.

Claims

1. the structure of FPC in the touch-screen, it is characterized in that: the chamfering place of FPC body (1) is a circular arc, at the chamfering place of described FPC body (1) an anti-tear line (2) is set.