CN203422733U

CN203422733U - Capacitive touch screen

Info

Publication number: CN203422733U
Application number: CN201320551141.3U
Authority: CN
Inventors: 黄家豪
Original assignee: BERN OPTISK (SHENZHEN) CO Ltd
Current assignee: Biel Crystal Manufactory Huizhou Ltd
Priority date: 2013-09-05
Filing date: 2013-09-05
Publication date: 2014-02-05
Anticipated expiration: 2023-09-05

Abstract

The utility model provides a capacitive touch screen, which relates to the field of touch screens. The capacitive touch screen comprises a surface layer, a shielding layer and capacitive sensing layers, wherein a pattern layer is added between the surface layer and the shielding layer, and is a photoresistance layer, the shielding layer is plated on the inner surface of the pattern layer, and the capacitive sensing layers are stacked on the inner surface of the shielding layer. The capacitive touch screen solves the problem that a capacitive screen is monotonous in appearance, and affects surface flatness and reliability of conductive wires when printing. The capacitive touch screen can adjust patterns of the pattern layer or color combination of the pattern layer and a color film layer according to demands, thereby forming different patterns and visual effect in capacitive screen non-visible window area, and meeting different demands of people. Furthermore, the pattern layer is photoresistance which is coated on the inner surface of the surface layer through coating technology, is thin in thickness, is easy to control thickness uniformity and simple in making process, can improve surface flatness, improves positional accuracy of the conductive wires, and further improves reliability of the conductive wires.

Description

A kind of capacitive touch screen

Technical field

The utility model relates to touch-screen field, is specifically related to a kind of capacitive touch screen.

Background technology

Even if capacitive touch screen has advantages of that machinery-free motion is worn and torn in screen, simple in structure, transmittance is high, the linearity is good, dustproof, fire prevention, scratch resistantly also have a stable performance in worst environment, thereby become the main flow in market, the sharpest edges of capacitive touch screen are that it has multi-point touch function, have greatly improved operating characteristic and the result of use of electronic product.The sharpest edges of capacitive touch screen are that it has multi-point touch function, have greatly improved operating characteristic and the result of use of electronic product.The major part of existing capacitance plate is tempered glass and capacitive sensing layer, wherein, in fact capacitive sensing layer is formed by MULTILAYER COMPOSITE, and structure is comparatively complicated, generally includes longitudinal transparent conductive film, horizontal transparent conductive film, insulation, bridging and edge plain conductor etc.Normally, between tempered glass and capacitive sensing layer, be provided with a shielding layer.The effect of shielding layer is to form screen outward appearance layout, and hides metallic circuit, with avoid its see through glass display in outside, affect visual effect.

Yet along with the raising of the development of technology and material, inspirit culture level, people make its outward appearance to material have higher requirement to the pursuit of stimulus to the sense organ, flat colour can not meet the variation of people to the requirement of euphorosia degree and thinking.In order to beautify the outward appearance of capacitance plate, minority producer adds one deck lines by printing between glass and shielding layer, yet this method still exists two problems: the one, and simple lines still can not meet people's needs; The 2nd, print thickness is large, thereby surface uniformity is difficult to control, and surface smoothness is poor, affects the reliability that conducting wire flies positional precision and conducting wire.

Utility model content

In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of capacitive touch screen, and it can improve the surface smoothness of touch-screen, and can improve the reliability of conducting wire.

For addressing the above problem, the technical scheme that the utility model adopts is as follows:

, comprising: superficial layer, shielding layer and capacitive sensing layer add patterned layer between superficial layer and shielding layer.Patterned layer is photoresist layer; Shielding layer is plated on patterned layer inside surface, and capacitive sensing layer is stacked in shielding layer inside surface.

Preferably, patterned layer is applied to superficial layer inside surface by coating technique, and it has one deck structure or multi-layer compound structure.

Preferably, add color rete between described patterned layer and shielding layer, described color rete is plated on patterned layer inside surface by coating method.

Preferably, described color rete comprises multilayer optical rete, and described multilayer optical rete replaces stacking forming by fluorescence coating and hyaline layer; The refractive index of described fluorescence coating is greater than the refractive index of described hyaline layer.

Preferably, the material of described hyaline layer is SiO ₂or MgF ₂.

Preferably, the color of described shielding layer is white or black.

Preferably, described superficial layer is strengthened glass panel.

Preferably, capacitive sensing layer is the glass sapphire substrate that has the glass substrate of capacitive sensing layout or have capacitive sensing layout.

Preferably, capacitive sensing layer is the flexible and transparent conductive material with capacitive sensing layout.

Preferably, the outside surface at superficial layer is provided with one deck reflection-proof coating.

Compared to existing technology, the beneficial effects of the utility model are:

The utility model can be adjusted arbitrarily the combination of pattern or patterned layer and the color Film color of patterned layer as required, and patterned layer is by the mode of coating, to be coated with the photoresistance of superficial layer inside surface, its thickness is little, and thickness evenness is easy to control, and manufacture craft is simple, positional precision is high, reach ± 5 μ m of its positional precision, logically can improve surface smoothness, and can improve conducting wire positional precision, and then improved the reliability of conducting wire.

Accompanying drawing explanation

Fig. 1 is the schematic cross-section of a kind of capacitive touch screen of the present utility model;

Fig. 2 is the schematic cross-section of embodiment bis-of the present utility model;

Wherein: 1, superficial layer; 2, patterned layer; 3, shielding layer; 4, capacitive sensing layer; 5, color rete.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

A kind of capacitive touch screen that the utility model provides, comprises superficial layer 1, shielding layer 3 and capacitive sensing layer 4, between superficial layer 1 and shielding layer 3, adds patterned layer 2, and patterned layer 2 is photoresist layers; Shielding layer 3 is plated on patterned layer 2 inside surfaces, and capacitive sensing layer 4 is stacked in shielding layer 3 inside surfaces.Patterned layer 2 consists of transparent organic photoresistance, and it is applied to superficial layer 1 inside surface by coating technique, and in non-viewfinder area, forms required pattern through gold-tinted processing procedure, the thin thickness of patterned layer 2, and even thickness, thereby little on the impact of wire.The pattern of patterned layer 2 comprises lines, square, round dot etc. or its combination, but is not limited to this three kinds of patterns and combination thereof.Patterned layer 2 has one deck structure or multi-layer compound structure, and in multi-layer compound structure, the pattern of every layer can be the same or different.

A kind of is preferred embodiment between patterned layer 2 and shielding layer 3, to add a color rete 5, and it is to be plated on patterned layer 2 inside surfaces by coating method.Color rete 5 comprises multilayer optical rete, and it is to replace stacking forming by fluorescence coating and hyaline layer.The refractive index of fluorescence coating is greater than the refractive index of described hyaline layer.The material of hyaline layer is selected from SiO ₂or MgF ₂.The color of color rete 5 is reached by adjusting target and film thickness, and its width, shape are depending on patterned layer 2.

Superficial layer 1 is a strengthened glass panel, shields.

The effect of shielding layer 3 is to form screen outward appearance layout, and hides metallic circuit, with avoid its see through glass display in outside, affect visual effect.It can be comprised of one or more of the metals such as silver slurry, silver foil, aluminium paste, aluminium foil or Copper Foil and metallic composite.It is generally white or black.

If glass capacitive screen, capacitive sensing layer 4 is glass substrate or the sapphire substrate with specific capacitor induction layout, i.e. transparent electrode layer and substrate; If film (Film) capacitance plate, capacitive sensing layer 4 is the flexible and transparent conductive material with specific capacitor induction layout, i.e. transparent electrode layer and film.

In addition, on superficial layer 1, can also plate one deck reflection-proof coating.

Embodiment mono-

As shown in Figure 1, a kind of capacitive touch screen that the utility model provides, comprises superficial layer 1, patterned layer 2, shielding layer 3 and capacitive sensing layer 4, and patterned layer 2 is by coating technique, to be applied to the photoresistance of superficial layer 1 inside surface, shielding layer 3 is plated on patterned layer 2 inside surfaces, and its color is white.Capacitive sensing layer 4 is stacked in shielding layer 3 inside surfaces.

Embodiment bis-

Fig. 2 is another embodiment of the present utility model, a kind of capacitive touch screen of the present embodiment, comprise superficial layer 1, patterned layer 2, color rete 5, shielding layer 3 and capacitive sensing layer 4, patterned layer 2 is by coating technique, to be applied to the photoresistance of superficial layer 1 inside surface, color rete 5 adopts coating method to be directly plated on patterned layer 2 inside surfaces, shielding layer 3 is plated on patterned layer 2 inside surfaces, and its color is black.Capacitive sensing layer 4 is stacked in shielding layer 3 inside surfaces.

Above-mentioned embodiment is only preferred implementation of the present utility model; can not limit with this scope of the utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.

Claims

1. a capacitive touch screen, comprising: superficial layer (1), shielding layer (3) and capacitive sensing layer (4), is characterized in that: between superficial layer (1) and shielding layer (3), add patterned layer (2), described patterned layer (2) is photoresist layer; Shielding layer (3) is plated on patterned layer (2) inside surface, and capacitive sensing layer (4) is stacked in shielding layer (3) inside surface.

2. a kind of capacitive touch screen as claimed in claim 1, is characterized in that: described patterned layer (2) is applied to superficial layer (1) inside surface by coating technique, and it has one deck structure or multi-layer compound structure.

3. a kind of capacitive touch screen as claimed in claim 1, is characterized in that: between described patterned layer (2) and shielding layer (3), add color rete (5), described color rete (5) is plated on patterned layer (2) inside surface by coating method.

4. a kind of capacitive touch screen as claimed in claim 3, is characterized in that: described color rete (5) comprises multilayer optical rete, and described multilayer optical rete replaces stacking forming by fluorescence coating and hyaline layer; The refractive index of described fluorescence coating is greater than the refractive index of described hyaline layer.

5. a kind of capacitive touch screen as claimed in claim 4, is characterized in that: the material of described hyaline layer is SiO ₂or MgF ₂.

6. a kind of capacitive touch screen as claimed in claim 1, is characterized in that: the color of described shielding layer (3) is white or black.

7. a kind of capacitive touch screen as claimed in claim 1, is characterized in that: described superficial layer (1) is strengthened glass panel.

8. a kind of capacitive touch screen as claimed in claim 1, is characterized in that: capacitive sensing layer (4) is the sapphire substrate that has the glass substrate of capacitive sensing layout or have capacitive sensing layout.

9. a kind of capacitive touch screen as claimed in claim 1, is characterized in that: capacitive sensing layer (4) is the flexible and transparent conductive material with capacitive sensing layout.

10. a kind of capacitive touch screen as claimed in claim 1, is characterized in that: the outside surface at superficial layer (1) is provided with one deck reflection-proof coating.