WO2017143682A1

WO2017143682A1 - Touchscreen

Info

Publication number: WO2017143682A1
Application number: PCT/CN2016/083659
Authority: WO
Inventors: 李学才; 龚得杏; 王榕; 杨越强; 林翰
Original assignee: 意力(广州)电子科技有限公司
Priority date: 2016-02-26
Filing date: 2016-05-27
Publication date: 2017-08-31
Also published as: CN205608687U

Abstract

The present invention relates to a touchscreen, comprising a first substrate and a mutual capacitance. The mutual capacitance is provided with an emitter electrode line layer and a receiver electrode line layer which are respectively stacked on two surfaces opposite to the first substrate. During processing, the emitter electrode line layer or the receiver electrode line layer is first processed on one side of the first substrate, and then the receiver electrode line layer or the emitter electrode line layer is processed on the other side of the first substrate, such that the emitter electrode line layer and receiver electrode line layer are respectively located at the front and back sides of the first substrate. The process thereof is simple and the production cost is reduced; the structure is simple, reducing the thickness of the touch screen, while improving touch accuracy, optical performance and bending resistance.

Description

touch screen

Technical field

The invention relates to a display screen, in particular to a touch screen.

Background technique

At present, the product structure of the touch screen is mainly a GFF structure, as shown in FIG. 1 , which is composed of two layers of ITO (indium tin oxide) film. However, the double-layer ITO structure causes the overall thickness of the touch screen to increase, the cost increases, the manufacturing process is cumbersome, and the optical performance and bending resistance of the product are lowered. Meanwhile, since the ITO has a high square resistance, it is limited in application to a large size.

Summary of the invention

The object of the present invention is to provide a touch screen capable of reducing product thickness, improving touch precision, optical performance and bending resistance, simple processing, and low production cost.

In order to achieve the object of the present invention, the technical solution adopted is:

A touch screen includes a first substrate and a mutual capacitance, wherein the mutual capacitance is provided with an emitter circuit layer and a receiver circuit layer, and the emitter circuit layer and the receiver circuit layer are respectively stacked on opposite surfaces of the first substrate. .

During processing, an emitter line layer or a receiver line layer is first processed on one side of the first substrate, and then a receiver line layer or an emitter line layer is processed on the other side of the first substrate to make the emitter line layer And the receiver circuit layer are respectively located on the front and back sides of the first substrate, the processing is simple, the production cost is reduced; the structure is simple, the thickness of the touch screen is reduced, and the touch precision, optical performance and bending resistance are improved.

The technical solution is further explained below:

Further, the touch screen further comprises a double-sided tape, a protective glass and a second substrate, and the protective glass, the double-sided tape, the receiving circuit layer, the first substrate, the emitter circuit layer and the second substrate are stacked from top to bottom. Assume.

Further, the touch screen further comprises a double-sided tape, a protective glass and a second substrate, and the protective glass, the double-sided tape, the emitter circuit layer, the first substrate, the receiver circuit layer and the second substrate are stacked from top to bottom. Assume.

Further, the first substrate and the second substrate are transparent substrates. Make the shape of the touch screen more beautiful.

Further, the first substrate is a PET film, and the second substrate is a revolving PET film.

Further, the mutual capacitance and the total thickness of the first substrate are 100 μm. Compared with the conventional touch screen composed of two layers of ITO film, the thickness is reduced by at least 140 μm.

Compared with the prior art, the present invention has the following beneficial effects:

When processing, the invention first processes an emitter line layer or a receiver line layer on one side of the first substrate, and then processes a receiver line layer or an emitter line layer on the other side of the first substrate to enable emission. The pole circuit layer and the receiver circuit layer are respectively located on the front and back surfaces of the first substrate, and the processing is simple, the production cost is reduced; the structure is simple, the thickness of the touch screen is reduced, and the touch precision, optical performance and bending resistance are improved.

DRAWINGS

1 is a schematic structural view of a conventional touch screen;

2 is a schematic structural diagram of a touch screen according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a processing flow of a touch screen according to an embodiment of the present invention.

Description of the reference signs:

10. First substrate, 20. mutual capacitance, 210. emitter circuit layer, 220. receiver circuit layer, 30. second substrate, 40. double-sided tape, 50. protective glass.

detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

As shown in FIG. 2, a touch screen includes a first substrate 10 and a mutual capacitance 20, and the mutual capacitance 20 is provided with an emitter circuit layer 210 and a receiver circuit layer 220, an emitter circuit layer 210 and a receiver circuit layer 220. They are respectively stacked on opposite surfaces of the first substrate 10, wherein the emission is extremely TX, and the receiving is extremely RX.

As shown in FIG. 3, during processing, a conductive ink is printed on one side of the first substrate 10 to obtain an emitter wiring layer 210, and then a receiver wiring layer 220 is processed on the other surface of the first substrate 10. The emitter circuit layer 210 and the receiver circuit layer are respectively located on the front and back sides of the first substrate 10, and the double-sided GF2 structure touch screen is obtained, which is simple in processing and reduces production cost; the structure is simple, the thickness of the touch screen is reduced, and the touch precision is improved. , optical properties and bending resistance. The emitter line layer 210 and the receiver line layer 220 can also be processed by inkjet, gravure, sputtering, photolithography, etc. according to actual needs. After the processing is completed, in order to prevent damage during the turnaround, the emitter circuit layer 210 faces away from the first substrate 10 The second substrate 30 is bonded to one side as a process protection substrate and will eventually be removed.

The touch screen can also process the receiver line layer 220 on the first substrate 10 according to actual needs, and then process the emitter line layer 210 on the other side of the first substrate 10, and face the first substrate on the receiver line layer 220. The second substrate 30 is attached to one side of the 10 .

In this embodiment, the first substrate 10 and the second substrate 30 are both transparent substrates, wherein the first substrate 10 is a PET film, the second substrate 30 is a revolving PET film, and the first substrate 10 and the second substrate 30 are further Other transparent materials and opaque materials are actually needed.

As shown in FIG. 2 , the touch screen further includes a double-sided tape 40 and a cover glass 50 , and the cover glass 50 is disposed on a side of the double-sided tape 40 facing away from the mutual capacitor 20 .

As shown in FIGS. 1 and 2, the total thickness of the mutual capacitor 20 and the substrate is 100 μm, which is reduced by 150 μm compared to a conventional touch panel composed of two layers of ITO film. The total thickness of the touch screen of the present invention after the peeling of the PET film is 900 μm, and the thickness of the conventional touch screen is 1050 μm.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A touch screen, comprising: a first substrate and a mutual capacitance, wherein the mutual capacitance is provided with an emitter circuit layer and a receiver circuit layer, and the emitter circuit layer and the receiver circuit layer are respectively stacked On the opposite surfaces of the first substrate.
The touch screen of claim 1 , further comprising a double-sided tape, a cover glass and a second substrate, the cover glass, the double-sided tape, the receiver line layer, the first The substrate, the emitter wiring layer, and the second substrate are sequentially stacked from top to bottom.
The touch screen according to claim 1, further comprising a double-sided tape, a cover glass and a second substrate, the cover glass, the double-sided tape, the emitter circuit layer, and the first The substrate, the receiving line, and the second substrate layer are sequentially stacked from top to bottom.
The touch screen according to claim 2 or 3, wherein the first substrate and the second substrate are transparent substrates.
The touch screen according to claim 4, wherein the first substrate is a PET film, and the second substrate is a revolving PET film.
The touch screen according to any one of claims 1 to 3, wherein the mutual capacitance and the total thickness of the first substrate are 100 μm.