CN109062451A - A kind of novel flexible graphene touch screen and preparation method thereof - Google Patents
A kind of novel flexible graphene touch screen and preparation method thereof Download PDFInfo
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- CN109062451A CN109062451A CN201811271533.8A CN201811271533A CN109062451A CN 109062451 A CN109062451 A CN 109062451A CN 201811271533 A CN201811271533 A CN 201811271533A CN 109062451 A CN109062451 A CN 109062451A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
Abstract
The invention discloses a kind of novel flexible graphene touch screens and preparation method thereof, belong to electronics field.Present invention graphene layer in touch screen by UV adhesive curing is formed on its surface protective layer after patterning, has both effectively protected the basic structure that graphene in turn ensures touch screen, and realizing that one kind is ultra-thin in simple structure can graphene touch screen flexible.On the one hand thicker solid state optics glue that preparation method through the invention avoids traditional approach use cannot achieve lightening disadvantage so that touch screen is thicker；On the other hand on the basis of graphene inherent characteristic; in conjunction with the distinctive structure of graphene film used; breach traditional laminating type; the graphene touch-control layer surface that will be patterned into directly is handled; increase its surface by the protective layer of layer; graphene layer after patterning is teamed by UV glue, to obtain a kind of novel flexible graphene touch screen.
Description
Technical field
The present invention relates to electronic display fields, and in particular to a kind of novel flexible graphene touch screen further relates to one kind
The preparation method of novel flexible graphene touch screen.
Background technique
Grapheme material has the good characteristics such as high transparency, high conductivity, resistance to flexing be good, therefore use graphene material
The touch screen of material production has the characteristic that translucency is good, touch-control effect is sensitive, flexible；But work as grapheme material touch-screen applications
When in traditional smart phone, compared with traditional ITO material touch screen, the advantage that translucency is good, touch-control effect is sensitive disappears
The person's of expense impression is unobvious, and irreplaceability is not strong；Simultaneously as grapheme material also in developing stage, graphene is soft at this stage
Property touch screen cost of manufacture be still higher than the cost of manufacture of ITO touch screen, therefore at present directly and ITO touch screen competitive application in
The market share in traditional smart phone field is relatively difficult.
The good resistance to flexing of graphene flexible touch screen is its prominent advantage compared with ITO touch screen, and the advantage is such as
Fruit can be showed by suitable flexible terminal product, then user's impression is intuitive, identification is high, can fully demonstrate graphite
The irreplaceability of alkene flexible touch screen, and then open the application market of graphene flexible touch screen.
Therefore it develops using graphene as the new type superthin graphene touch screen of critical material, and in this, as grapheme material
The terminal applies product of application is demonstrated, and can be played prominent grapheme material and touch screen advantage, developing grapheme material and be touched
The effect shielded application market, grapheme material and touch screen technology is pulled to develop, the novel product form being prepared have
The wide market space, and encouraged to support by national correlation department policy.
Summary of the invention
In view of this, one of the objects of the present invention is to provide a kind of novel flexible graphene touch screens；Mesh of the invention
Two be to provide a kind of preparation method of novel flexible graphene touch screen.
For achieving the above object, the invention provides the following technical scheme:
1, a kind of novel flexible graphene touch screen, the touch screen from bottom to top successively include basal layer 4, adhesive layer 3,
Adhesive layer 3 is arranged on the basal layer 4, graphene conductive layer is arranged on the adhesive layer 3 for graphene conductive layer 2 and protective layer 1
2, protective layer 1 is set in the graphene conductive layer 2；The protective layer 1 is UV glue-line.
Preferably, the material of the basal layer is ultrathin flexible high molecular material.
Preferably, the ultrathin flexible high molecular material includes polyimides, polyethylene terephthalate, poly- methyl
Any one in methyl acrylate.
Preferably, the material of the adhesive layer is optical cement.
2, a kind of preparation work method of novel flexible graphene touch screen, the preparation method include the following steps:
(1) aging process is carried out to graphene film and obtains aging graphene film；
(2) silk-screen silver paste is carried out to the surface of aging graphene film side, then carrying out baking solidifies silver paste, is formed solid
Change the graphene film of silver paste；
(3) touch pattern is etched in the graphene film for solidifying silver paste using laser etching techniques, pattern is prepared
The graphene layer of change；
(4) using silk screen printing process on recordization graphene layer surface cover one layer of UV glue-line, then under anaerobic into
The forming method of row ultra-violet curing, the oxygen free condition is as follows: being bonded release film on UV glue-line, guarantees that oxygen is isolated in UV glue；
(5) flexible printed circuit board is bundled in graphite by the release film being bonded on the graphene layer after tearing ultra-violet curing
The graphene conductive layer of side protective mulch can be obtained in the binding area of alkene film；
(6) another side of the graphene conductive layer of side protective mulch is bonded in substrate using the caking property of adhesive layer
A kind of novel flexible graphene touch screen can be obtained on layer.
Preferably, the substrate is ultrathin flexible high molecular material, and the ultrathin flexible high molecular material includes polyamides Asia
Amine, polyethylene terephthalate, any one in polymethyl methacrylate；The material of the adhesive layer is optics
Glue.
Preferably, the temperature of step (2) described baking is 100~130 DEG C, and the time of baking is 15~25min.
Preferably, single layer multipoint configuration is used when step (3) described laser ablation, makes to realize touch-control function on single thin film
Energy.
Preferably, uv curing machine is used when step (4) described ultra-violet curing.
Preferably, step (5) the binding area is that screen AG PIN and FPC for touch bind overlapped the region PAD.
The beneficial effects of the present invention are:
1, the present invention provides a kind of novel flexible graphene touch screen, and graphene layer is by patterning in touch screen
(sensor pattern) is formed on its surface protective layer by UV adhesive curing afterwards, has not only effectively protected graphene but also has guaranteed to touch
Touch the basic structure of screen, realize in simple structure it is a kind of it is ultra-thin can graphene touch screen flexible.
2, the present invention provides a kind of preparation method of novel flexible graphene touch screen, and preparation method is simple, is easy behaviour
Make, the thicker solid state optics glue for avoiding traditional approach use cannot achieve lightening disadvantage so that touch screen is thicker.
3, preparation method of the invention is on the basis of consideration graphene intrinsic characteristic, in conjunction with graphene film used
Distinctive structure breaches traditional laminating type, and the graphene touch-control layer surface that will be patterned into directly is handled, and makes its table
Face increases the protective layer of layer, that is, the graphene layer after patterning is teamed by UV glue, both effectively protects graphene
The basic structure for guaranteeing touch screen again, realize in simple structure it is a kind of it is ultra-thin can graphene touch screen flexible.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing:
Fig. 1 is a kind of structure of novel flexible graphene touch screen；
Fig. 2 is a kind of preparation flow figure of novel flexible graphene touch screen；
Wherein 1 is protective layer, and 2 be graphene conductive layer, and 3 be the adhesive layer of graphene film material, and 4 be substrate.
Specific embodiment
Below by a preferred embodiment of the present invention will be described in detail.The experiment of actual conditions is not specified in embodiment
Method, usually according to conventional conditions or according to the manufacturer's recommendations.
Embodiment 1
The structure of novel flexible graphene touch screen of the invention a kind of as shown in Figure 1, include basal layer 4, adhesive layer 3,
Adhesive layer 3 is arranged on the basal layer 4, graphene conductive layer is arranged on the adhesive layer 3 for graphene conductive layer 2 and protective layer 1
2, protective layer 1 is set in the graphene conductive layer 2；The protective layer 1 is UV glue-line.
The basal layer is ultrathin flexible high molecular material, and wherein ultrathin flexible high molecular material includes polyimides, gathers
Any one in ethylene glycol terephthalate, polymethyl methacrylate.
The material of the adhesive layer is optical cement.
A kind of novel flexible graphene touch screen preparation flow figure is as shown in Fig. 2, be prepared as follows:
(1) aging process is carried out to graphene film and obtains aging graphene film；
(2) surface of aging graphene film side is carried out under the conditions of silk-screen silver paste, then 100 DEG C into baking 15min
Solidify silver paste, forms the graphene film for solidifying silver paste；
(3) touch-control figure is etched in the graphene film for solidifying silver paste using the laser etching techniques of single layer multipoint configuration
Patterned graphene layer is prepared in case；
(4) one layer of UV glue-line is covered using the graphene layer surface of silk screen printing process on recordization, it is then sharp under anaerobic
Ultra-violet curing is carried out with using uv curing machine, the forming method of the oxygen free condition is as follows: being bonded release film on UV glue-line,
Guarantee that oxygen is isolated in UV glue；
(5) flexible printed circuit board is bundled in graphite by the release film being bonded on the graphene layer after tearing ultra-violet curing
Overlapped the region the binding area of alkene film, that is, screen for touch AG PIN and FPC binding PAD, can be obtained side protective mulch
Graphene conductive layer.
Embodiment 2
A kind of novel flexible graphene touch screen is prepared as follows:
(1) aging process is carried out to graphene film and obtains aging graphene film；
(2) surface of aging graphene film side is carried out under the conditions of silk-screen silver paste, then 120 DEG C into baking 20min
Solidify silver paste, forms the graphene film for solidifying silver paste；
(3) touch-control figure is etched in the graphene film for solidifying silver paste using the laser etching techniques of single layer multipoint configuration
Patterned graphene layer is prepared in case；
(4) one layer of UV glue-line is covered using the graphene layer surface of silk screen printing process on recordization, it is then sharp under anaerobic
Ultra-violet curing is carried out with using uv curing machine, the forming method of the oxygen free condition is as follows: being bonded release film on UV glue-line,
Guarantee that oxygen is isolated in UV glue；
(5) flexible printed circuit board is bundled in graphite by the release film being bonded on the graphene layer after tearing ultra-violet curing
Overlapped the region the binding area of alkene film, that is, screen for touch AG PIN and FPC binding PAD, can be obtained side protective mulch
Graphene conductive layer.
Embodiment 3
A kind of novel flexible graphene touch screen is prepared as follows:
(1) aging process is carried out to graphene film and obtains aging graphene film；
(2) surface of aging graphene film side is carried out under the conditions of silk-screen silver paste, then 130 DEG C into baking 15min
Solidify silver paste, forms the graphene film for solidifying silver paste；
(3) touch-control figure is etched in the graphene film for solidifying silver paste using the laser etching techniques of single layer multipoint configuration
Patterned graphene layer is prepared in case；
(4) one layer of UV glue-line is covered using the graphene layer surface of silk screen printing process on recordization, it is then sharp under anaerobic
Ultra-violet curing is carried out with using uv curing machine, the forming method of the oxygen free condition is as follows: being bonded release film on UV glue-line,
Guarantee that oxygen is isolated in UV glue；
(5) flexible printed circuit board is bundled in graphite by the release film being bonded on the graphene layer after tearing ultra-violet curing
Overlapped the region the binding area of alkene film, that is, screen for touch AG PIN and FPC binding PAD, can be obtained side protective mulch
Graphene conductive layer.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (10)
1. a kind of novel flexible graphene touch screen, which is characterized in that the touch screen from bottom to top successively includes basal layer
(4), adhesive layer (3) are arranged on the basal layer (4) in adhesive layer (3), graphene conductive layer (2) and protective layer (1), described viscous
It ties and graphene conductive layer (2) is set on layer (3), protective layer (1) is set on the graphene conductive layer (2)；The protective layer (1)
For UV glue-line.
2. a kind of novel flexible graphene touch screen according to claim 1, which is characterized in that the material of the basal layer is
Ultrathin flexible high molecular material.
3. a kind of novel flexible graphene touch screen according to claim 2, which is characterized in that the ultrathin flexible macromolecule
Material includes polyimides, polyethylene terephthalate, any one in polymethyl methacrylate.
4. a kind of novel flexible graphene touch screen according to claim 1, which is characterized in that the material of the adhesive layer is
Optical cement.
5. a kind of any one of Claims 1 to 4 preparation method of novel flexible graphene touch screen, which is characterized in that institute
Preparation method is stated to include the following steps:
(1) aging process is carried out to graphene film and obtains aging graphene film；
(2) silk-screen silver paste is carried out to the surface of aging graphene film side, then carrying out baking solidifies silver paste, forms solidification silver
The graphene film of slurry；
(3) touch pattern is etched in the graphene film for solidifying silver paste using laser etching techniques, be prepared patterned
Graphene layer；
(4) one layer of UV glue-line is covered using the graphene layer surface of silk screen printing process on recordization, then carried out under anaerobic purple
The forming method of outer solidification, the oxygen free condition is as follows: being bonded release film on UV glue-line, guarantees that oxygen is isolated in UV glue；
(5) it is thin to be bundled in graphene by the release film being bonded on the graphene layer after tearing ultra-violet curing for flexible printed circuit board
The graphene conductive layer of side protective mulch can be obtained in the binding area of film；
(6) another side of the graphene conductive layer of side protective mulch is bonded on the base layer using the caking property of adhesive layer
A kind of novel flexible graphene touch screen can be obtained.
6. a kind of preparation method of novel flexible graphene touch screen according to claim 5, which is characterized in that the substrate
For ultrathin flexible high molecular material, the ultrathin flexible high molecular material include polyimides, polyethylene terephthalate,
Any one in polymethyl methacrylate；The material of the adhesive layer is optical cement.
7. a kind of preparation method of novel flexible graphene touch screen according to claim 5, which is characterized in that step (2)
The temperature of the baking is 100~130 DEG C, and the time of baking is 15~25min.
8. a kind of preparation method of novel flexible graphene touch screen according to claim 5, which is characterized in that step (3)
Single layer multipoint configuration is used when the laser ablation, makes to realize touch function on single thin film.
9. a kind of preparation method of novel flexible graphene touch screen according to claim 5, which is characterized in that step (4)
Uv curing machine is used when the ultra-violet curing.
10. a kind of preparation method of novel flexible graphene touch screen according to claim 5, which is characterized in that step (5)
The binding area is that screen AG PIN and FPC for touch bind overlapped the region PAD.
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Cited By (1)
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| CN114296571A (en) * | 2021-12-14 | 2022-04-08 | 重庆石墨烯研究院有限公司 | Preparation method of graphene touch film for display screen |
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