CN2510886Y

CN2510886Y - Structure for preventing wire of liquid-crystal display module from breaking

Info

Publication number: CN2510886Y
Application number: CN 01270730
Authority: CN
Inventors: 刘明谋
Original assignee: Wintek Corp
Current assignee: Wintek Corp
Priority date: 2001-11-21
Filing date: 2001-11-21
Publication date: 2002-09-11
Anticipated expiration: 2011-11-21

Abstract

The utility model relates to a structure which can prevent an LCD module conductor from fracture. The utility model utilizes the anti-rupture characteristics of the coating layer in a flexible print circuit board structure, and the adjoining plane of the coating layer and the alloy layer shrinks inwardly and is hot-pressed on the hot pressing area of the LCD when the flexible print circuit board is designed. Therefore the rupture area of the flexible print circuit board while using falls on the coating layer to prevent the conductor in the copper conductor layer of the flexible print circuit board from fracture.

Description

Prevent the structure of LCD MODULE wire fracture

Technical field

The utility model relates to a kind of structure that prevents the LCD MODULE wire fracture, refers to that especially a kind of action of destroying or force to yield that prevents that LCD MODULE structure package material from being flexible printed wiring board when using causes the structure of its wire fracture.

Background technology

Press, please cooperate and consult Fig. 5, Fig. 6, shown in Figure 7, existing liquid crystal display mode block structure is to be provided with a glassy layer 41 in the bottom surface of a LCD 40, the end face of this glassy layer 41 is provided with an integrated circuit 50 and a flexible printed wiring board 60, this flexible printed wiring board 60 links with this integrated circuit 50, and this integrated circuit 50 links with this LCD 40;

This flexible printed wiring board 60 and a transparent electrode layer 61 are stacked on this glassy layer 41 in addition, and the folded anisotropy conducting film 62 that is provided with on this transparent electrode layer 61, the folded alloy-layer 63 that is provided with on this anisotropy conductive film layer 62, and the folded bronze medal conductive layer 64 that is provided with on this alloy-layer 63, this bottom surface, copper conductive layer 64 top coats with a coating layer 65 (Cover Layer) respectively, and makes the coating layer 65 that is positioned at these copper conductive layer 64 bottom surfaces be able to engage with this alloy-layer 63.

So, this coating layer 65 is unlike materials with this alloy-layer 63, so both junctions can form a composition surface B, and not only binding site is little because of this composition surface B, conjugation is poor, and this composition surface B is exposed to outside this anisotropy conductive film layer 62, easily form breakaway poing, if with the bending up and down constantly of this flexible printed wiring board 60, make the deflection maximum of this composition surface B, and B easier generation stress in this composition surface is concentrated, and at an easy rate with the lead bending fracture of this copper conductor layer 64, thereby makes the electrically bad of product, and then make this flexible printed wiring board 60 to remove, maintenance, even it is disconnected easily to cause transparent electrode layer 61 to be scraped when maintenance, makes product to scrap, and causes the increase of cost of labor and Material Cost.And the general improvement method that solves all need use other additional materials (as UV glue, adhesive tape ...) prevent the flexible printed wiring board wire fracture, but the effect that is to use is limited, and increase the cost expenditure virtually, hereat, necessity of being improved is arranged.

Summary of the invention

The purpose of this utility model provides a kind of structure that prevents the LCD MODULE wire fracture, and the action of destroying or force to yield when it can prevent flexible printed wiring board fully because of use causes the situation of its wire fracture.

A kind of structure that prevents the LCD MODULE wire fracture, this LCD MODULE comprises a LCD and a flexible printed wiring board, this LCD is to have a glassy layer, this glassy layer is provided with an integrated circuit, and on this LCD and have a transparency electrode layer by layer, this transparency electrode links mutually with this integrated circuit layer by layer; It is characterized in that:

Described flexible printed wiring board is to have an alloy-layer, establish a copper conductor layer on this alloy-layer, the bottom surface, top of this copper conductive layer coats with a coating layer respectively, this coating layer that is positioned at copper conductive layer bottom surface is the end face that coats to this transparent electrode layer, and this alloy-layer is to combine with the transparent electrode layer of this LCD.

The faying face that the transparent electrode layer of this LCD combines is with an anisotropy conducting film heat pressure adhesive.

This alloy-layer is nickel billon or leypewter.

This coating layer is a polyketone imines material.

The made LCD MODULE of the utility model has following advantage: hot pressing is contractd to the hot pressing district of LCD in the composition surface that is about to this coating layer and this alloy-layer during owing to this flexible printed wiring board design toward in, flexable-broken area when flexible printed wiring board is used falls within on this coating layer, and can prevent fully that the destroy or force to yield action of flexible printed wiring board when using from causing the situation of its wire fracture.

Description of drawings

Fig. 1 is a stereo appearance figure of the present utility model

Fig. 2 is a combination of side view of the present utility model

Fig. 3 is a flexible printed wiring board enlarged diagram of the present utility model

Fig. 4 is an embodiment bending action synoptic diagram of the present utility model

Fig. 5 is the combination of side view of prior art structure

Fig. 6 is the flexible printed wiring board enlarged diagram of prior art

Fig. 7 is the bending action synoptic diagram of prior art

Embodiment

See also Fig. 1, Fig. 2, shown in Figure 3, the utility model is a kind of structure that prevents the LCD MODULE wire fracture, it is to be provided with a glassy layer 11 in the bottom surface of a LCD 10, the end face of this glassy layer 11 is provided with an integrated circuit 12 and a flexible printed wiring board 30, these flexible printed wiring board 30 1 ends are to link with this integrated circuit 12, this integrated circuit 12 links with this LCD 10, and this flexible printed wiring board 30 is positioned at this glassy layer 11 formation one hot pressing district 301, and this flexible printed wiring board 30 is positioned at this glassy layer 11 outer flexable-broken areas 302 that form.

This flexible printed wiring board 30 is to be stacked on this glassy layer 11 with a transparent electrode layer 31 in addition, and the folded anisotropy conductive film layer 32 that is provided with on this transparent electrode layer 31, the folded alloy-layer 33 that is provided with on this anisotropy conductive film layer 32, in present embodiment, this alloy-layer 33 is nickel gold (Ni-Au) alloy or tin lead (Pb-Sn) alloy, and the folded bronze medal conductive layer 34 that is provided with on this alloy-layer 33, this bottom surface, copper conductive layer 34 top coats with a coating layer 35 (COver Layer) respectively, and make the coating layer 35 that is positioned at these copper conductive layer 34 bottom surfaces be able to engage and form a composition surface A with this alloy-layer 33, this composition surface A is positioned at this hot pressing district 301, in present embodiment, this coating layer 35 is polyimide material (Polyimide is called for short PI).

Please cooperate consult shown in Figure 4, because this coating layer 35 is unlike materials with this alloy-layer 33, so both junctions can form a composition surface A, if the user bends this flexible printed wiring board 30 undeservedly up and down, and be located in this hot pressing district 301 because of composition surface A of the present utility model, so the bending point that is bent drops on the outside of this anisotropy conductive film layer 32, so can not form breakaway poing in A place, this composition surface, and more can not produce stress in this composition surface B concentrates, the lead of guaranteeing this copper conductor layer 34 is as excellent as before, optimum condition when making the electrical maintenance of product dispatch from the factory, and do not have wire fracture because of copper conductor layer, make the situation of the wrong survey of product take place.

The utility model is the characteristic of can anti-ly destroying or force to yield of utilizing the coating layer 35 in flexible printed wiring board 30 structures, and when flexible printed wiring board 30 design, be about to contract hot pressing to the hot pressing district 301 of this LCD 10 in the composition surface A post of this coating layer 35 and this alloy-layer 33, flexable-broken area 302 when one flexible printed wiring board 30 is used falls within on this coating layer 35, wire fracture with the copper conductor layer 34 that prevents flexible printed wiring board 30, and can prevent fully that the destroy or force to yield action of flexible printed wiring board 30 when using from causing the situation of its wire fracture, and can be applicable to the flexible printed wiring board design on the LCD MODULE of various types, do not need to increase in addition other fringe cost.

General improvement method all can't prevent a flexible printed wiring board wire fracture, and need to increase other fringe cost (as UV glue, adhesive tape ...), and the method for contracting is fully the disappearance of prior art to be eliminated in the coating layer of the present utility model, and then save every cost expenditure, and processing procedure simply can not increase trouble.

Claims

1, a kind of structure that prevents the LCD MODULE wire fracture, this LCD MODULE comprises a LCD and a flexible printed wiring board, this LCD is to have a glassy layer, this glassy layer is provided with an integrated circuit, and on this LCD and have a transparency electrode layer by layer, this transparency electrode links mutually with this integrated circuit layer by layer; It is characterized in that:

2, as claims 1 described structure that prevents the LCD MODULE wire fracture, it is characterized in that: the faying face that the transparent electrode layer of this LCD combines is with an anisotropy conducting film heat pressure adhesive.

3, as claims 1 described structure that prevents the LCD MODULE wire fracture, it is characterized in that: this alloy-layer is the nickel billon.

4, as claims 1 described structure that prevents the LCD MODULE wire fracture, it is characterized in that: this alloy-layer is a leypewter.

5, as claims 1 described structure that prevents the LCD MODULE wire fracture, it is characterized in that: this coating layer is the polyimide material.