CN215450153U - Novel touch capacitive screen - Google Patents
Novel touch capacitive screen Download PDFInfo
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- CN215450153U CN215450153U CN202122066595.9U CN202122066595U CN215450153U CN 215450153 U CN215450153 U CN 215450153U CN 202122066595 U CN202122066595 U CN 202122066595U CN 215450153 U CN215450153 U CN 215450153U
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- cover plate
- capacitive screen
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Abstract
The utility model discloses a novel touch capacitive screen which comprises cover plate glass, a first optical adhesive layer, a sensor functional sheet, a second optical adhesive layer and shielding glass, wherein the cover plate glass, the first optical adhesive layer, the sensor functional sheet, the second optical adhesive layer and the shielding glass are sequentially and closely stacked from top to bottom; a metal compound film coating is arranged on the surface of the cover plate glass; the cover plate glass is also attached with a protective film, and the protective film comprises an ultraviolet-proof layer. The novel touch capacitive screen provided by the utility model is characterized in that the surface of the cover plate glass is provided with the metal compound film coating, the coating has the functions of reflecting far infrared radiation, effectively reducing the heat transfer coefficient of the glass, reflecting heat radiation in the sun, selectively reducing the sun shading coefficient, and not excessively limiting the penetration of visible light.
Description
Technical Field
The utility model relates to a screen for an electronic product, in particular to a novel touch capacitive screen.
Background
At present, a touch screen in an electronic product mainly comprises a glass cover plate and a glass functional sheet, wherein an SCA optical adhesive is used for adhering the glass cover plate and the glass functional sheet, wherein ito (indium Tin oxides) conducting layers are respectively arranged on two surfaces of the glass functional sheet, and the conducting layers respectively correspond to electrode layers in the X-axis direction and the Y-axis direction. When a finger touches the touch screen, a coupling capacitor is formed on the surface of the touch screen due to the human body electric field, and the controller obtains the position of a touch point through calculation, so that the purpose of touching the touch screen is achieved.
However, the applicant researches and discovers that the existing products have the following defects:
ultraviolet rays affect the photostability and lifetime of capacitive screen devices because high energy ultraviolet photons can break the chemical bonds of long chain molecules, resulting in cracking and poor molecular alignment. Strong ultraviolet short-time irradiation tends to show yellowing of color, darkening of screen, blackening of screen, etc., thereby degrading the performance of the display device.
Still traditional electric capacity screen does not generally possess anti ultraviolet function, easily harms the panel when outdoor use, reduces life.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defects, the utility model provides a novel touch capacitive screen.
In order to solve the problems, the utility model is realized according to the following technical scheme:
the novel touch capacitive screen comprises cover plate glass, a first optical adhesive layer, a sensor functional sheet, a second optical adhesive layer and shielding glass which are sequentially and closely stacked from top to bottom;
a metal compound film coating is arranged on the surface of the cover plate glass;
the cover plate glass is also attached with a protective film, and the protective film comprises an ultraviolet-proof layer.
Preferably, the protective film includes a substrate layer, an ultraviolet-proof layer disposed on the substrate layer, and a photo-curing resin layer disposed on the ultraviolet-proof layer.
Preferably, the substrate layer is made of PET, PVC or PC.
Preferably, the thickness of the light-curing resin layer is 30 μm, the thickness of the ultraviolet-proof layer is 10 μm, and the thickness of the base material layer is 100 μm.
Preferably, the cover glass has a thickness of 2mm, and the shielding glass has a thickness of 0.8 mm.
Preferably, a circular polarizer is further interposed between the cover glass and the sensor functional sheet.
Preferably, the cover glass is subjected to AG treatment to form an uneven granular structure on the surface of the cover glass.
Compared with the prior art, the utility model has the beneficial effects that:
1. the novel touch capacitive screen provided by the utility model is characterized in that the surface of the cover plate glass is provided with the metal compound film coating, the coating has the functions of reflecting far infrared radiation, effectively reducing the heat transfer coefficient of the glass, reflecting heat radiation in the sun, selectively reducing the sun shading coefficient, and not excessively limiting the penetration of visible light.
2. Be provided with the protection film on the top layer glass of electric capacity screen, the protection film is provided with prevents the ultraviolet layer, has higher luminousness when guaranteeing to filter ultraviolet ray, and the electric capacity screen can be in outdoor occasion, and the protection film is effectively avoided ultraviolet ray direct irradiation to electric capacity screen on, combines metal compound membrane coating to improve life.
Drawings
Embodiments of the utility model are described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic view of the layer structure of a capacitive screen of the present invention;
FIG. 2 is a schematic view of the layer structure of the protective film of the present invention;
FIG. 3 is a schematic perspective view of a screen according to the present invention;
in the figure:
10-protective film, 11-photocuring resin layer, 12 ultraviolet-proof layer and 13-base material layer;
20-cover glass, 21-metal compound film coating;
30-a first optical glue layer;
40-sensor functional sheet, 41-circular polarizer;
50-a second optical glue layer;
60-shielding glass.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1 to fig. 3, the preferred structure of the novel touch capacitive screen is described in the present invention.
As shown in fig. 1, the novel touch capacitive screen includes a protective film 10, a cover glass 20, a first optical adhesive layer 30, a sensor functional sheet 40, a second optical adhesive layer 50, and a shielding glass 60, which are closely stacked in sequence from top to bottom.
In order to meet the requirements of touch performance, radiation resistance and electromagnetic compatibility, the capacitive touch screen adopts a G + G + G structural design scheme on the overall design idea, the first layer is cover plate glass, the second layer is a sensor functional sheet (an Rx electrode layer and wiring, a Tx electrode layer and wiring can be respectively arranged on the upper surface and the lower surface of the sensor functional sheet), the third layer is shielding glass for electromagnetic shielding, and 3 layers of glass are completely laminated through 0.2mm of optical cement.
The utility model plates a metal compound film coating 21 with a thickness of 8-10 layers and a thickness of 50-300 nm on the surface of cover plate glass 20. The coating firstly reflects far infrared radiation, and effectively reduces the heat transfer coefficient of the glass. Secondly, the heat radiation in the sun is reflected, and the shading coefficient is selectively reduced. At the same time, the penetration of visible light is not too much restricted.
In one implementation, the cover glass 20 has a thickness of 2mm and the shielding glass 60 has a thickness of 0.8 mm.
Preferably, a circular polarizer 41 is further interposed between the cover glass 20 and the sensor functional sheet 40. The circular polarizer is composed of a linear polarizer and a delay plate, and the polarization state of reflected light is changed through the delay plate, so that the polarization state of the reflected light in the touch screen is orthogonal to the angle of the surface linear polarizer, the extinction purpose is achieved, and the intensity of the reflected light is greatly reduced. The sensor functional sheet 40 and the circular polarizer 41 are connected by an optical adhesive.
The cover glass 20 is subjected to AG treatment to form an uneven granular structure on the surface of the cover glass. AG treatment is to change the glass surface into an uneven granular structure through a chemical etching or spraying mode so as to achieve the effect of diffuse reflection, reduce the reflected light to human eyes and enable users to experience better visual effect by combining a circular polarizer.
Wherein, carry out effectual adhesion with Sensor function piece and cover plate glass and shielding glass through the optical cement, play and strengthen protection and fixed effect, select high light transmissivity, high temperature resistant OCA optical cement.
In the present invention, as shown in fig. 2, the protective film 10 includes a base material layer 13, an ultraviolet-proof layer 12 disposed on the base material layer 13, and a photocurable resin layer 11 disposed on the ultraviolet-proof layer 12.
Be provided with protection film 10 on the glass of the apron of electric capacity screen, protection film 10 is provided with anti ultraviolet layer, has higher luminousness when guaranteeing to filter ultraviolet ray, and electric capacity screen can be in outdoor occasion, and the protection film is effectively avoided ultraviolet direct irradiation to electric capacity screen on, improve life-span.
The protective film is provided with a light-cured resin layer as a surface layer, and the light-cured resin consists of a resin monomer and a prepolymer, contains an active functional group, and can initiate polymerization reaction by a photosensitizer under the irradiation of ultraviolet light to generate an insoluble transparent coating. The method has the characteristics of simple and convenient operation, low cost, good chemical solvent resistance, high hardness and the like, and well protects the capacitive screen.
In a preferred implementation, the substrate layer is made of PET, PVC or PC.
In a preferred embodiment, the thickness of the light-curing resin layer is 30 μm, the thickness of the ultraviolet-proof layer is 10 μm, and the thickness of the substrate layer is 100 μm.
Other structures of the novel touch capacitive screen are shown in the prior art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (7)
1. A novel touch capacitive screen is characterized by comprising cover plate glass, a first optical adhesive layer, a sensor functional sheet, a second optical adhesive layer and shielding glass which are sequentially and closely stacked from top to bottom;
a metal compound film coating is arranged on the surface of the cover plate glass;
the cover plate glass is also attached with a protective film, and the protective film comprises an ultraviolet-proof layer.
2. The novel touch capacitive screen of claim 1, wherein:
the protection film includes the substrate layer, sets up the anti ultraviolet layer on the substrate layer and sets up the photocuring resin layer on the anti ultraviolet layer.
3. The novel touch capacitive screen of claim 2, wherein:
the substrate layer is made of PET, PVC or PC.
4. The novel touch capacitive screen of claim 3, wherein:
the thickness of the light-cured resin layer is 30 micrometers, the thickness of the ultraviolet-proof layer is 10 micrometers, and the thickness of the base material layer is 100 micrometers.
5. The novel touch capacitive screen of claim 1, wherein:
the thickness of the cover plate glass is 2mm, and the thickness of the shielding glass is 0.8 mm.
6. The novel touch capacitive screen of claim 1, wherein:
and a circular polarizer is also clamped between the cover plate glass and the sensor functional sheet.
7. The novel touch capacitive screen of claim 6, wherein:
the cover glass is subjected to AG treatment to form an uneven granular structure on the surface of the cover glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122066595.9U CN215450153U (en) | 2021-08-30 | 2021-08-30 | Novel touch capacitive screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122066595.9U CN215450153U (en) | 2021-08-30 | 2021-08-30 | Novel touch capacitive screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215450153U true CN215450153U (en) | 2022-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122066595.9U Active CN215450153U (en) | 2021-08-30 | 2021-08-30 | Novel touch capacitive screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215450153U (en) |
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2021
- 2021-08-30 CN CN202122066595.9U patent/CN215450153U/en active Active
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