CN201302713Y

CN201302713Y - Touch panel

Info

Publication number: CN201302713Y
Application number: CNU2008202097105U
Authority: CN
Inventors: 谢隆胜
Original assignee: Minli Investment Co ltd
Current assignee: Minli Investment Co ltd
Priority date: 2008-11-03
Filing date: 2008-11-03
Publication date: 2009-09-02
Anticipated expiration: 2018-11-03

Abstract

The utility model relates to a touch panel, which comprises a transparent substrate, a film layer and a flexible flat cable arranged between the substrate and the film layer; the substrate is provided with a surface, a plurality of electrodes are respectively arranged at the edge of the surface, the thin film layer is covered on the surface of the substrate with the electrodes, a plurality of conducting electrodes opposite to the substrate electrodes are arranged at the edge of the surface of the thin film layer opposite to the substrate, and more than two grooves corresponding to the substrate electrodes are arranged on the thin film layer; the groove on the thin film layer can avoid the phenomenon of unevenness caused by different linear expansion coefficients of materials when the thin film layer and the substrate are hot-pressed and cooled, so that the touch panel has a flat appearance.

Description

Contact panel

Technical field

The utility model is a kind of contact panel, refers to the smooth contact panel in a kind of its edge especially.

Background technology

In order to make people enjoy life more easily, therefore many science and technology all develop towards direction easily gradually, and for for the input media of control electronic installation, also develop into the contact panel that to control by the contact surface plate mode by the input media that is provided with enter key, allow this electronic installation of the more convenient operation of user.

Common contact panel has electric resistance touch-control panel, capacitance type touch-control panel, acoustic wave contact panel and optical touch control panel at present; Wherein, this electric resistance touch-control panel is covered in the thin layer on the substrate and a plurality of electrode of being located between transparency carrier and thin layer and being adjacent to edge by a transparency carrier, to be formed, this electrode is to be connected with an end that is many connecting lines on the T font flexible flat cable, this connecting line other end then be located at electronic installation in control circuit be connected.

Yet this flexible flat cable by hot pressing between substrate and thin layer and with after electrode is connected, because different on this thin layer and the substrate material, when this contact panel the time can present in various degree contraction in cooling, and cause the out-of-flatness of contact panel edge, and cause apparent flaw; Be with, this is touch panel structure provided real necessity that further improvement is arranged.

The utility model content

Therefore, the utility model fundamental purpose is providing a kind of contact panel, and it has the edge of leveling, produces projection with the outward appearance of avoiding this contact panel and causes flaw.

The technological means of taking in order to achieve the above object is to make aforementioned contact panel, and it comprises:

One substrate is transparence, and this substrate has a surface, and this surperficial edge is respectively equipped with a plurality of electrodes;

One thin layer, it covers in aforesaid substrate has on the surface of electrode, this thin layer be provided with in the marginal surface place of relative substrate one with the corresponding conduction electrode of aforesaid substrate electrode, and this thin layer is in having on its edge more than two and the corresponding groove of electrode of substrate; And

One flexible flat cable is located between substrate and the thin layer, and has a plurality of connecting lines and one end on it and be located at going up of substrate and be connected with the conduction electrode of substrate and the electrode of thin layer.

The beneficial effects of the utility model are:

By this above-mentioned structure, after this substrate and film carry out hot pressing, because this thin layer is provided with and the corresponding groove of substrate top electrode, so this groove can provide the space of contact panel dilatational strain when hot pressing and cooling, makes this contact panel have smooth and incorporate outward appearance.

Description of drawings

Be further to disclose concrete technology contents of the present utility model, below in conjunction with embodiment and accompanying drawing describes in detail as after, wherein:

Fig. 1 is the stereographic map of the utility model one preferred embodiment.

Fig. 2 is the assembly drawing of the utility model one preferred embodiment.

Fig. 3 is the amplification stereogram of the utility model one preferred embodiment groove.

Local amplification profile when Fig. 4 is the utility model one preferred embodiment assembling.

Fig. 5 is the local amplification profile after the utility model one preferred embodiment assembling.

Embodiment

Please refer to Fig. 1 to shown in Figure 3, the utility model is to be a kind of contact panel, and it comprises a substrate 10, a thin layer 20, a flexible flat cable 30 and a binding layer 40.

This substrate 10 is to be transparent rectangular-shaped, and this substrate 10 has a surface, and these substrate 10 surperficial neighboring edge places are provided with a plurality of electrodes 11 respectively, so that the usefulness of substrate 10 induced voltage variations to be provided; This thin layer 20 is to be transparence, this thin layer 20 covers in substrate 10 to have on the surface of electrode 11, and this thin layer 20 is provided with a plurality of and substrate 10 electrodes 11 corresponding conduction electrodes 21 in the marginal surface place of relative substrate 10, have on the edge of this thin layer 20 again more than two and substrate 10 electrodes 11 corresponding grooves 22, and in present embodiment, this groove 22 is relative outer fixs of being located at conduction electrode 21 respectively; Have a plurality of connecting lines 31 on this flexible flat cable 30 and constitute and electrically contact with the conduction electrode 21 of the electrode 11 of substrate 10 and thin layer 20, and this flexible flat cable 30 is to be the T font, it comprises a horizontal connecting portion 32 and an extend longitudinally portion 33, these connecting portion 32 1 ends are to be located on the electrode 11 of substrate, this connecting line 31 and electrode 11 and conduction electrode 21 are connected mutually, and these extension 33 1 ends be be located at electronic installation in integrated circuit be connected; This binding layer 40 is to be located between flexible flat cable 30 and the thin layer 20, and this binding layer 40 is preferably anisotropic conductive film (Anisortropic conductive film; ACF).

When the user utilizes finger or pointer when touching this contact panel, can produce pressure and produce signals, and then via flexible flat cable 30 signal that is produced on the contact panel is sent to and calculate user institute position contacting in the control circuit at electrode 11.

Please refer to Fig. 4 and shown in Figure 5, when groove 22 designs of the utility model on thin layer 20 can make this substrate 10 and thin layer 20 as hot pressing or cooling, the space of this groove 22 can be for the usefulness in 20 spaces of expanding with heat and contract with cold of thin layer, and make thin layer 20 upper limbs after completing be tending towards smooth, and then make this contact panel have smooth outward appearance.

Though the utility model has been exposed specific practice of the present utility model in the aforementioned embodiment; but be not to be only limited to category mentioned in the previous embodiment; any modifications and variations of being done in not breaking away from spirit and scope of the present utility model also belong to the scope that the utility model claim is protected.

Claims

1. A touch panel, characterized in that, comprising:

A substrate is transparent, the substrate has a surface, and the edges of the surface are respectively provided with a plurality of electrodes;

A thin film layer, which is covered on the surface of the above-mentioned substrate with electrodes, the thin film layer is provided with a conduction electrode corresponding to the above-mentioned substrate electrode at the edge of the surface of the opposite substrate, and the thin film layer has two on its edge the above grooves corresponding to the substrate electrodes; and

A flexible cable has a plurality of connection lines on it, and one end of it is arranged on the substrate to connect with the conduction electrode of the substrate and the electrode of the film layer.

2 . The touch panel as claimed in claim 1 , wherein the grooves are respectively disposed on opposite outer positions of the conduction electrodes. 3 .

3. The touch panel according to claim 1 or 2, wherein the flexible cable is T-shaped, which includes a horizontal connecting portion and a vertical extending portion.

4. The touch panel according to claim 3, wherein the touch panel further has a bonding layer, and the bonding layer is disposed between the flexible wiring and the film layer.

5. The touch panel according to claim 4, wherein the bonding layer is an anisotropic conductive adhesive film.