CN209086893U - A kind of capacitive touch screen - Google Patents
A kind of capacitive touch screen Download PDFInfo
- Publication number
- CN209086893U CN209086893U CN201821982416.8U CN201821982416U CN209086893U CN 209086893 U CN209086893 U CN 209086893U CN 201821982416 U CN201821982416 U CN 201821982416U CN 209086893 U CN209086893 U CN 209086893U
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- China
- Prior art keywords
- cover board
- touch screen
- foam
- capacitive touch
- line
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Abstract
The utility model provides a kind of capacitive touch screen.The capacitive touch screen includes cover board, function lamella and foam glue-line, and the cover board is connected with function lamella by the foam glue-line；The foam glue-line is frame-shaped construction；The cover board is one of glass workpiece, PC plastic part, PMM A acrylic board or plastic-plastic composite materials, the cover board with a thickness of 2~8mm.Compared with the relevant technologies, capacitive touch screen provided by the utility model is pasted cover board and function lamella using the foam rubber of frame structure, realize non-full laminating type connection, reduce equipment cost, greatly reduce manufacture difficulty, client can voluntarily complete to be bonded, it is also not high to environmental requirement, it is directly sticked by mark line, greatly reduces logistics cost, shorten the production cycle.
Description
Technical field
The utility model relates to touch screen technology field more particularly to a kind of capacitive touch screens.
Background technique
With the development of electronic product, touch screen is widely used on mobile phone, tablet computer.Capacitive touch screen be by
Cover board (decoration and protection part) is constituted plus Sensor (induction part).Existing connection type between the two is to pass through
OCA (Optically Clear Adhesive optical cement) or LOCA (Liquid Optical Clear Adhesive liquid
Optical transparent adhesive) or SCA (Solid Optically Clear Adhesive Optical transparent adhesive) fit together entirely.It is this
Connection structure needs specific environment and corollary equipment to complete.However some special industries and product the size of the cover plate are larger, using biography
If the GG laminating type of system, then tailor-made large scale equipment is needed, and this large scale equipment transports more complicated and higher cost, gives
The manufacture of equipment also brings difficulty.
Accordingly, it is desirable to provide a kind of new capacitive touch screen solves the above problems.
Utility model content
The purpose of this utility model is to provide the capacitors of a kind of foam glue cover board of frame structure and function lamella
Formula touch screen.
The utility model provides a kind of capacitive touch screen, including cover board, function lamella and foam glue-line, the cover board and
Function lamella is connected by the foam glue-line；The foam glue-line is frame-shaped construction；The cover board is glass workpiece, PC plastic
One of part, PMM A acrylic board or plastic-plastic composite materials, the cover board with a thickness of 2~8mm.
Preferably, the function lamella is ITO Film conductive film, ITO Glass electro-conductive glass, graphene or conductive silver
In any one.
Preferably, the cover board is top layer, and the function lamella is bottom.
Preferably, the foam glue-line is PE foam double-faced adhesive, EVA foam double-faced adhesive, PU foam double-faced adhesive, anti-bubble
Any one in cotton double-sided adhesive or acryl foam double-faced adhesive.
Compared with the relevant technologies, capacitive touch screen provided by the utility model will be covered using the foam rubber of frame structure
Plate and function lamella are pasted, and are realized non-full laminating type connection, are reduced equipment cost, greatly reduce manufacture difficulty, client
Can voluntarily complete to be bonded, it is also not high to environmental requirement, directly sticked by mark line, greatly reduce logistics at
This, shortens the production cycle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of capacitive touch screen provided by the utility model.
Specific embodiment
The utility model is described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case where, the feature in the embodiments of the present invention and embodiment can be combined with each other.For sake of convenience, hereinafter such as
There is "upper", "lower", "left", "right" printed words, only indicates consistent with the upper and lower, left and right direction of attached drawing itself, not to structure
Play restriction effect.
As shown in Figure 1, capacitive touch screen provided in this embodiment includes cover board 1, function lamella 2 and foam glue-line 3.Institute
Cover board 1 and function lamella 2 is stated to connect by the foam glue-line 3.
The cover board 1 is top layer, and the function lamella 2 is bottom.
The cover board 1 is one of glass workpiece, PC plastic part, PMM A acrylic board or plastic-plastic composite materials, thickness
For 2~8mm.
PC (Polycarbonate polycarbonate) has excellent physical mechanical property, especially excellent impact resistance,
Tensile strength, bending strength, compressive strength are high；Creep properties is small, dimensionally stable；With good heat resistance and lower temperature resistance,
There is stable mechanical property, dimensional stability, electrical property and anti-flammability in wider temperature range, it can be at 60~120 DEG C
It is used for a long time；It is in molten condition at 220-230 DEG C without sharp melting point；Since molecule chain rigidity is big, resin melt viscosity is big；It inhales
Water rate is small, and shrinking percentage is small, and dimensional accuracy is high, good stability of the dimension.
PMMA (Polymeric Methyl Methacrylate polymethylmethacrylasheet sheet material) i.e. acrylic board is
It is a kind of to develop important plastic macromolecule material earlier, there is the preferable transparency, chemical stability and weatherability, easily contaminate
Color, easy processing, attractive appearance, with the transparency as crystal, light transmittance is 92% or more, and light is soft, optical clarity.Have
The good characteristics such as splendid weatherability, higher surface hardness and lustrous surface, and preferable high-temperature behavior.
Plastic-plastic composite materials are most common a kind of composite materials, and various plastic films have respective merits and demerits, will
After they are compound, new material has the advantageous properties such as oil resistivity, moisture resistance, heat sealability simultaneously.After modeling modeling is compound, two can be formed
Layer, three layers, the composite materials such as four layers, such as: PC-PMMA, OPP-PE, BOPET-PP-PE, PT-PE-EVOH-PE.
The function lamella 2 is Sensor, is the electric signal function lamella of capacitance plate, can be monolayer material composition,
It is also possible to the composite structure of multilayer material formation, is commonly called as " functional sheet ".The function lamella 2 is ITO Film conductive film, ITO
Any one in Glass electro-conductive glass, graphene or conductive silver.
The major parameter of ITO Film conductive film has: sheet resistance, the uniformity of sheet resistance, light transmittance, thermal stability,
Heat shrink rate, heating curling etc..The wherein main sheet resistance with base material used in ito film and ito film of light transmission rate
It is related.In the identical situation of base material, the sheet resistance of ito film is smaller, and the thickness of ito film layer is bigger, light transmission rate phase
That answers has a degree of reduction.
ITO Glass electropane, i.e. tin indium oxide (Indium-Tin Oxide) transparent conducting film glass, multi-pass mistake
ITO electropane production line, using plane magnetic control technology, sputters in the power house environment of high purification on ultra-thin glass
Tin indium oxide conductive film coating and the high-tech product obtained through the high temperature anneal.It is widely used for liquid crystal display
(LCD), solar battery, microelectronics ITO electropane, photoelectron and various optical fields.
With advances in technology with the market pressure of ITO raw material, more and more new materials are developed, are used to
The ito film and ito glass of same performance are made into instead of ITO.For replacing the transparent conductive material of ITO by following several: metal
Grid Metal Mesh；Conducting polymer；Nano silver；Graphene.
The foam glue-line 3 is frame-shaped construction, need to only be pasted the frame of foam glue-line, non-full laminating type
It pastes.The cover board 1, function lamella 2 are bonded by foam glue-line 3, and high degree reduces touch screen assembling difficulty.
The foam glue-line 3 is double sided adhesive tape structure, two-sided for PE foam double-faced adhesive, EVA foam double-faced adhesive, PU foam
Any one in glue, waterproof foam double-faced adhesive or acryl foam double-faced adhesive.
Foam double-faced adhesive, which refers to, coats viscous acrylic acid adhesive by force on foaming foam substrate two sides, is then covered on one side release
A kind of double-sided adhesive made of paper or release film.Foam double-faced adhesive is with adhesion strength is strong, retentivity is good, waterproof performance is good, temperature tolerance
By force, the strong characteristic of ability and ultraviolet resistance.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other relevant technical fields, are also included in the patent protection scope of the utility model.
Claims (4)
1. a kind of capacitive touch screen, which is characterized in that including cover board, function lamella and foam glue-line, the cover board and function
Lamella is connected by the foam glue-line；The foam glue-line is frame-shaped construction；The cover board is glass workpiece, PC plastic part, PMM
One of A acrylic board or plastic-plastic composite materials, the cover board with a thickness of 2~8mm.
2. capacitive touch screen according to claim 1, which is characterized in that the function lamella is ITO Film conductive
Any one in film, ITO Glass electro-conductive glass, graphene or conductive silver.
3. capacitive touch screen according to claim 1, which is characterized in that the cover board is top layer, the function lamella
For bottom.
4. capacitive touch screen according to claim 1, which is characterized in that the foam glue-line be PE foam double-faced adhesive,
Any one in EVA foam double-faced adhesive, PU foam double-faced adhesive, waterproof foam double-faced adhesive or acryl foam double-faced adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821982416.8U CN209086893U (en) | 2018-11-28 | 2018-11-28 | A kind of capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821982416.8U CN209086893U (en) | 2018-11-28 | 2018-11-28 | A kind of capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209086893U true CN209086893U (en) | 2019-07-09 |
Family
ID=67125993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821982416.8U Active CN209086893U (en) | 2018-11-28 | 2018-11-28 | A kind of capacitive touch screen |
Country Status (1)
| Country | Link |
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| CN (1) | CN209086893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254702A (en) * | 2018-11-28 | 2019-01-22 | 深圳市灵触科技有限公司 | A kind of capacitive touch screen |
-
2018
- 2018-11-28 CN CN201821982416.8U patent/CN209086893U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254702A (en) * | 2018-11-28 | 2019-01-22 | 深圳市灵触科技有限公司 | A kind of capacitive touch screen |
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