CN201936286U - Touch screen with single-sided structure - Google Patents

Abstract

The utility model provides a touch screen with a single-sided structure. A continuous X-axis electrode (2) is arranged on a transparent substrate (1); an insulating layer (3) is arranged on the continuous X-axis electrode (2); and a continuous Y-axis electrode (4) is arranged on the insulating layer (3). Two ends of the Y-axis electrode (4) are respectively connected with an outer area (5) of a visible area. The touch screen has the advantages that: firstly, various units of the Y-axis electrode are directly connected and the favorable reliability for connection is obtained; secondly, the contact area of the part at which the Y-axis electrode is contacted with the substrate is large, the contacted width is 4,000-8,000 micrometers and the production difficulty is reduced; thirdly, the touch screen can resist 12,000V static electricity; and fourthly, the Y-axis electrode can be only led outside the visible area; if a broken bridge generates, the broken bridge can be repaired by a simplest printing mode and the like without influencing the appearance and the performances of the device; and the rate of finished products can be improved and the cost is reduced.

Description

A kind of touch-screen of single-sided structure

Technical field:

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

Background technology:

Capacitance touch screen can be realized multiple spot and touch sensible accurately, and simple in structure, transmittance is high, is the main flow direction of current demonstration touch technology development.The touch sensible parts of projection-type capacitive touch screen are generally the induction matrix of a plurality of column electrodes, the interlaced formation of row electrode.The column electrode of touch sensible parts and row electrode are arranged on the same one side of a slice transparency carrier, and separate by certain insulation course at the cross-point of column electrode and row electrode, to prevent that it is in the mutual short circuit of cross-point.Therefore must be at the cross-point of column electrode and row electrode by certain bridge formation structure, column electrode and row electrode are separated and guarantee its conducting on direction separately, as Fig. 4, shown in Figure 5, staggered X-axis electrode 2, Y-axis electrode 4 are set on the transparency carrier 1.As shown in Figure 5, directions X electrode 2 is continuous at cross-point, and Y direction electrode 4 disconnects at cross-point, therefore, must adopt insulation course 6, conducting bridge 7 that Y direction electrode 4 is connected.

Above-described:

(1), substrate 1 is transparent material, transmitance is greater than 90%, thickness range: 0.12mm～2mm;

(2), the transmitance of directions X transparent conductive electrode and Y direction transparent conductive electrode is greater than 88%, thickness range is at 5nm～25nm, resistance range in 80 ohm/～400 ohm/;

(3), the transmitance of insulating material 6 is greater than 90%, thickness range is at 500nm～2500nm;

(4), conducting bridge 7 materials are thin film of conductive material, thickness range: 25nm～400nm., resistance range: 0.4 ohm/～400 ohm/, its width range of the thinnest place: 8 microns～200 microns;

(5), the visible area exterior domain 5.This zone is light tight, can make of lighttight printing ink and lighttight membraneous material.

The major defect of its existence has:

Y-axis needs several conducting bridges could be with the Y-axis conducting, and one of them conducting bridge defectiveness then whole piece Y-axis has disappearance;

Conducting bridge need come transition by the edge of insulation course with the place that the Y-axis electrode contacts at first, defective appears in place in transition easily, and the thinnest local width range of conducting bridge is at 8 microns～200 microns, and disconnected easily under the high-pressure electrostatic condition, its ability of bearing static is less than 6000V.

At conducting bridge and insulation course and conducting bridge defective appears easily in addition during with local plated film that the Y-axis electrode contacts.Check very difficult.As long as their any one defectiveness then can not remedy, can cause entire device to scrap.

The utility model content

The purpose of this utility model is exactly for complex structure, the flimsy shortcoming that the bridging structure exists in the existing capacitance touch screen, the touch screen structure of a kind of single-sided structure that provides are provided.

To achieve these goals, the utility model has adopted following technical scheme:

A kind of touch-screen of single-sided structure comprises staggered X-axis electrode, Y-axis electrode are set on the transparency carrier, it is characterized in that:

The X-axis electrode is set on a, the transparency carrier, and the X-axis electrode is continuous at cross-point;

Above b, the continuous X-axis electrode layer insulating is set;

C, the Y-axis electrode is set above the insulation course, the Y-axis electrode is continuous at cross-point.

Advantage of the present utility model is:

1, is direct connection between each unit of Y-axis electrode, do not need to put up a bridge that the reliability of connection is fine;

2, the local contact area of Y-axis electrode and substrate contacts is very big, and the width of contact is 4000 microns～8000 microns, and manufacture difficulty reduces;

3, can the static of anti-12000V.

4, the Y-axis electrode is only derived outside visible area.If bridge cut-off is arranged, can there be mode such as simple printing repair, do not influence the outward appearance and the performance of device.Can improve yield rate, reduce cost.

Description of drawings:

Fig. 1 is a front view of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the A portion enlarged drawing of Fig. 2, has omitted insulation course among the figure;

Fig. 4 is the vertical view of existing single face touch-screen;

Fig. 5 is the B portion enlarged drawing of Fig. 4.

Embodiment:

As shown in Figure 1 and Figure 2, the touch-screen of a kind of single-sided structure that the utility model provides, comprise transparency carrier 1, X-axis electrode 2 is set on the transparency carrier 1, X-axis electrode 2 is continuous at cross-point 2a, one layer insulating 3 is set on continuous X-axis electrode 2, Y-axis electrode 4 is set on insulation course 3, Y-axis electrode 4 is continuous at cross-point 4a.The two ends of Y-axis electrode 4 are connected to visible area exterior domain 5, and this zone is light tight, can make of lighttight printing ink and lighttight membraneous material.

As shown in Figure 3, X-axis electrode 2 is continuous at cross-point 2a, and Y-axis electrode 4 also is continuous at cross-point 4a, does not need bridging structure of the prior art, realizes the continuous of whole Y-axis electrode 4.

In the present embodiment, all material all can adopt the starting material that use in the prior art, as:

Substrate can adopt: glass, tempered glass, organic glass, PET film;

Electrode adopts thin film of conductive material, can be: tin indium oxide, tin oxide, aluminium oxide tin, zinc paste.Also can be opaque, as: chromium, molybdenum aluminium molybdenum, aluminium, gold.

Insulation course can adopt: silicon dioxide, silicon nitride, organic resin.

The outer method for making of visible area is to make of thin-film metallic oxide on substrate, and also on the cover board the lighttight printing ink of silk-screen is realized, also can be that the film that is pasted with interception on the surface of substrate is realized.

Claims (1)

1. the touch-screen of a single-sided structure comprises transparency carrier (1), and staggered X-axis electrode (2) and Y-axis electrode (4) are set on the transparency carrier (1), it is characterized in that:

On a, the transparency carrier (1) X-axis electrode (2) is set, X-axis electrode (2) is continuous at cross-point (2a);

Above b, the continuous X-axis electrode (2) layer insulating (3) is set;

C, Y-axis electrode (4) is set above the insulation course (3), Y-axis electrode (4) is continuous at cross-point (4a).

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