CN2788331Y

CN2788331Y - Notebook computer keyboard film switch structure

Info

Publication number: CN2788331Y
Application number: CN 200520101165
Authority: CN
Inventors: 杨新川
Original assignee: JIAXING CHUNXIANG ELECTRONICS TECHNOLOGY Co Ltd
Current assignee: JIAXING CHUNXIANG ELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2005-03-24
Filing date: 2005-03-24
Publication date: 2006-06-14
Anticipated expiration: 2015-03-24

Abstract

The utility model discloses a film switch structure for a notebook computer keyboard, which comprises an upper plastic film and a lower plastic film, wherein one side face of the lower plastic film is provided with an upper circuit layer and a lower circuit layer, an insulating layer is arranged between the upper circuit layer and the lower circuit layer, and the insulating layer is provided with a through hole used for the electrical connection of the upper circuit layer and the lower circuit layer; a press key point is simultaneously printed with two electrodes, the upper plastic film is only provided with corresponding electricity conducting points on press keys and the electricity conducting points on the upper plastic film simultaneously and downward contact the two electrodes on the two circuit layers on the lower plastic film to form a loop when the press keys are pressed downward. The film switch structure for a notebook computer keyboard has the technical advantages that circuits are intensively fabricated on one plastic film and the other plastic film is only used for fabricating the electricity conducting points without need of the mutual connection of the upper circuit and the lower circuit. Thus, the mass production of products is convenient to carry out and the costly anisotropic electricity conducting glue is saved.

Description

A kind of keyboard of notebook computer thin film switch structure

Technical field

The utility model relates to a kind of keyboard of notebook computer member, particularly a kind of keyboard of notebook computer thin film switch structure.

Background technology

At keyboard of notebook computer with adopting following this structure in the thin film switch usually: last slice circuit and following sheet circuit separate with plastic film between upper and lower circuit or with dielectric ink making formation interlayer.Two kinds of methods are adopted in the connection of upper and lower circuit at present: a kind of is that convertible is promptly on the plastic film chip of 2 times of big products, make upper and lower circuit simultaneously, connect upper and lower circuit by product edge, in the processing procedure of back, upper and lower circuit doubling formed; Another kind method is that upper and lower circuit is produced on two plastic films, and upper and lower circuit is to link together by specially designed anisotropic conductive.The former is because make the big and difficult control precision of area and be difficult for improving production capacity; The latter is because operation is too much and anisotropic conductive cost height.

Summary of the invention

The purpose of this utility model is to provide a kind of simple in structure for the deficiency that solves above-mentioned technology, circuit concentrates on a slice plastic film, need not interconnecting of upper and lower circuit, and make things convenient for a kind of keyboard of notebook computer thin film switch structure of large-scale production.

In order to achieve the above object, a kind of keyboard of notebook computer thin film switch structure that the utility model is designed, it comprises a plastic film and following sheet plastic film, on a side of following sheet plastic film, be provided with circuit layer and following circuit layer, be provided with insulating barrier between last circuit layer and the following circuit layer, be provided with on the insulating barrier, the perforation that is electrically connected usefulness of following circuit layer, then be printed with two electrodes simultaneously at button point, only be provided with conductiving point corresponding on the button on last plastic film, last slice two electrodes of conductiving point on sheet two circuit layers under the contact simultaneously downwards of button down state constitute the loop.For protective circuit layer better, between last plastic film and following sheet plastic film, also can be provided with partition.

The resulting a kind of keyboard of notebook computer thin film switch structure of the utility model, its technical characterstic is that circuit concentrates on a slice plastic film and makes, another sheet is only made conductiving point, need not interconnecting of upper and lower circuit, thereby made things convenient for the large-scale production of product, and saved the high anisotropic conductive of cost again.

Description of drawings

Fig. 1 is the utility model example structure schematic diagram;

Fig. 2 is an embodiment thin film switch overall structure schematic diagram.

1, last slice plastic film; 2, partition; 3, the upper strata circuit of following sheet; 4, insulating barrier; 5, the lower circuit of following sheet; 6, following sheet plastic film; 7, upper and lower layer circuit through hole; 8, last slice conductiving point; 9, the electrode of following sheet conductiving point.

Embodiment

The utility model will be further described in conjunction with the accompanying drawings below by embodiment.

Embodiment 1

As Fig. 1, shown in Figure 2, a kind of keyboard of notebook computer thin film switch structure that present embodiment is described, it comprises a plastic film 1 and following sheet plastic film 6, on a side of following sheet plastic film 6, be provided with circuit layer 3 and following circuit layer 5, be provided with insulating barrier 4 between last circuit layer 3 and the following circuit layer 5, be provided with on the insulating barrier 4, following circuit layer 3,5 the perforation that is electrically connected usefulness 7, then be printed with two electrodes 9 simultaneously at button point, on last plastic film 1, only be provided with conductiving point 8 corresponding on the button, last slice conductiving point 8 is sheet two circuit layers 3 under the contact simultaneously downwards of button down state, two electrodes 9 on 5 constitute the loop, also can be provided with partition 2 between last plastic film 1 and following sheet plastic film 6.

On the described keyboard of notebook computer thin film switch of present embodiment, its structure can adopt two or three plastic films, when also being three plastic films, wherein a slice is a partition 2, owing to making double layer circuit 3,5 on the sheet plastic film 6 down, 3,5 of double layer circuits separate with insulating barrier 4, guaranteed the insulation between circuit, at this, insulating barrier 4 can or have the plastic film of perforation 7 with dielectric ink, 3,5 perforations of reserving by insulating barrier 47 of two-tier circuit are electrically connected, and then print off two electrodes 9 simultaneously at button point; Last slice plastic film 1 does not then have circuit, and corresponding conductiving point 8 is only arranged on the button, and conductiving point 8 contact simultaneously downwards when button is pressed on last slice plastic film 1 two electrodes 9 of sheet plastic film 6 down constitutes loops.

Claims

1, a kind of keyboard of notebook computer thin film switch structure, it comprises a plastic film (1) and following sheet plastic film (6), it is characterized in that on a side of following sheet plastic film (6), being provided with circuit layer (3) and following circuit layer (5), be provided with insulating barrier (4) between last circuit layer (3) and the following circuit layer (5), on insulating barrier (4), be provided with, following circuit layer (3), (5) the perforation that is electrically connected usefulness (7), then be printed with two electrodes (9) simultaneously at button point, on last plastic film (1), only be provided with on the button corresponding conductiving point (8), last slice conductiving point (8) sheet two circuit layers (3) under the contact simultaneously downwards of button down state, (5) two electrodes (9) on constitute the loop.

2, a kind of keyboard of notebook computer thin film switch structure according to claim 1 is characterized in that being provided with partition (2) between last plastic film (1) and following sheet plastic film (6).