CN105739802A - Graphene curled type capacitive touch screen and manufacturing method of the graphene curled type capacitive touch screen - Google Patents
Graphene curled type capacitive touch screen and manufacturing method of the graphene curled type capacitive touch screen Download PDFInfo
- Publication number
- CN105739802A CN105739802A CN201610078783.4A CN201610078783A CN105739802A CN 105739802 A CN105739802 A CN 105739802A CN 201610078783 A CN201610078783 A CN 201610078783A CN 105739802 A CN105739802 A CN 105739802A
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- China
- Prior art keywords
- graphene
- touch screen
- functional layer
- capacitive touch
- flexible cover
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Classifications
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The invention discloses a graphene curled type capacitive touch screen. The touch screen comprises a flexible cover board and a function layer. The function layer comprises at least two graphene function layers which are mutually jointed together; the graphene function layer located at the most upper end is jointed with the flexible cover board; the graphene function layers comprise base materials; graphene conductive thin films are arranged in the middle parts of the upper surfaces of the base materials; and conductive metal materials located on the upper surfaces of the base materials are arranged in two setting regions at two sides of the graphene conductive thin films. The invention also discloses a manufacturing method of the graphene curled type capacitive touch screen. The method comprises following steps of 1), manufacturing the graphene function layers, wherein the step comprises sub-steps of a, transferring the graphene conductive thin films onto the base materials; patterning the graphene conductive thin films; b, depositing conductive metal materials in the two setting regions at two sides of the graphene conductive thin films; forming graphene conductive thin film external connection circuits; 2), jointing the graphene function layers together to obtain the function layer; and 3), jointing the function layer and the flexible cover board.
Description
Technical field
The invention belongs to touch screen technology field, concrete is a kind of graphene roll musical form capacitive touch screen and preparation method thereof.
Background technology
Lightening and flexibility increasingly becomes the development trend of consumable electronic product.In electronic product the flexibility of screen from Qu Ping to can any curved screens, then to spool electron-like screen.There is multinomial Display Technique for flexible display screen at present, such as OLED, flexible electronic ink screen etc..This represents in the development of flexible electronic product, and the port from output of products to people has developed into ripe, and also lacks a kind of flexible solution being input to equipment from people at present.
Capacitive touch screen is as a kind of input mode most widely used on smart mobile phone, and it has prominent advantage.But, traditional capacitive touch screen receives numerous challenge when being applied to flexible field, and Major Difficulties is in that: 1) conductive material tin indium oxide is a kind of non-flexible material；2) the glass cover-plate inflexibility that capacitive touch screen adopts；3) capacitive touch screen is thicker, and it is flexible curling that these features make existing capacitive touch screen be unfavorable for.Therefore capacitive touch screen is applied in flexible electronic product, it is necessary to carry out the improvement of each side.
Graphene is a kind of two-dimensional material, its thickness only 0.34nm.It has good electric conductivity and flexibility, and light transmittance is higher.These factors determine graphene conductive film materials application in flexible capacitive touch screen, will be the perfect solutions solving above-mentioned great number of issues.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of graphene roll musical form capacitive touch screen and preparation method thereof, it is possible to realize flexible curling purpose.
For reaching above-mentioned purpose, the present invention provides following technical scheme:
Present invention firstly provides a kind of graphene roll musical form capacitive touch screen, including flexible cover plate and be fitted in the functional layer below described flexible cover plate, described functional layer includes at least two-layer Graphene functional layer together bonded to each other, is positioned at described Graphene functional layer topmost and is fitted and connected with described flexible cover plate；Described Graphene functional layer includes base material, is provided with graphene conductive film in the middle part of described substrate upper surface, and the both sides setting regions of described graphene conductive film is respectively equipped with the conductive metallic material being positioned at described substrate upper surface.
Further, OCA optical cement is all adopted to fit between Graphene functional layer and between described Graphene functional layer and described flexible cover plate topmost described in adjacent two layers.
Further, described flexible cover plate adopts PET material to make.
Further, described base material adopts PI or PET material to make.
Further, the thickness of described base material is less than 20um.
The invention allows for a kind of manufacture method for graphene roll musical form capacitive touch screen described above, it is characterised in that: comprise the steps:
1) Graphene functional layer is made:
A. described graphene conductive film is transferred on described base material, and graphene conductive film is patterned process；
B. the setting regions in described graphene conductive film both sides deposits described conductive metallic material, and forms described graphene conductive film external circuits；
2) Graphene functional layer is fit together obtain described functional layer；
3) described functional layer and described flexible cover plate are fit together.
Further, the laminating of OCA optical cement is adopted between described Graphene functional layer and between described functional layer and described flexible cover plate.
Further, described graphene conductive film adopts vapour deposition process to generate on Copper Foil.
The beneficial effects of the present invention is:
The graphene roll musical form capacitive touch screen of the present invention, adopts Graphene as conductive material, utilizes graphene conductive film 180 degree to bend all without the feature affecting electric conductivity, for capacitive touch screen, it may be achieved flexible curling purpose.
Adopt the material capacitance plate protective layers the most such as PET flexible cover plate, rupture pressure disc, the shortcoming that traditional cover-plate glass inflexibility can be overcome；Transfer graphene to thickness less than < on the matrix material such as PI, PET of 20 μm, can the thickness of significantly thinning capacitive touch screen, thus overcoming the defect that traditional capacitance screen thickness is big from thickness.
Accompanying drawing explanation
In order to make the purpose of the present invention, technical scheme and beneficial effect clearly, the present invention provides drawings described below to illustrate:
Fig. 1 is the structural representation of graphene roll musical form capacitive touch screen embodiment of the present invention；
Fig. 2 is the flow chart of graphene roll musical form capacitive touch screen manufacture method of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, so that those skilled in the art can be better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As it is shown in figure 1, be the structural representation of graphene roll musical form capacitive touch screen embodiment of the present invention.The graphene roll musical form capacitive touch screen of the present embodiment, including flexible cover plate 1 be fitted in the functional layer below flexible cover plate 1, functional layer includes at least two-layer Graphene functional layer together bonded to each other, is positioned at Graphene functional layer topmost and is fitted and connected with flexible cover plate 1.The Graphene functional layer of the present embodiment includes base material 2, and base material 2 upper surface middle part is provided with graphene conductive film 3, and the both sides setting regions of graphene conductive film 3 is respectively equipped with the conductive metallic material 4 being positioned at base material 2 upper surface.The functional layer of the present embodiment includes two-layer Graphene functional layer together bonded to each other.
Further, OCA optical cement 5 is all adopted to fit between adjacent two layers Graphene functional layer and between Graphene functional layer and flexible cover plate topmost.The flexible cover plate 1 of the present embodiment adopts PET material to make, and base material 2 adopts PI or PET material to make, and the base material 2 of the present embodiment adopts PET material to make, and the thickness of base material 2 is less than 20um.
The graphene roll musical form capacitive touch screen of the present embodiment, adopts Graphene as conductive material, utilizes graphene conductive film 180 degree to bend all without the feature affecting electric conductivity, for capacitive touch screen, it may be achieved flexible curling purpose.
Below in conjunction with above-mentioned graphene roll musical form capacitive touch screen, the detailed description of the invention of the graphene roll musical form capacitive touch screen manufacture method of the present invention being elaborated, the graphene roll musical form capacitive touch screen manufacture method of the present embodiment comprises the steps:
1) Graphene functional layer is made:
A. being transferred on base material 2 by graphene conductive film 3, and graphene conductive film 3 is patterned process, to realize certain conductive pattern, concrete, the graphene conductive film 3 of the present embodiment adopts vapour deposition process to generate on Copper Foil；
B. at the setting regions conductive metal deposition material 4 of graphene conductive film 3 both sides, and graphene conductive film 3 external circuits is formed, to realize Graphene internal circuit external connecting function；
2) Graphene functional layer being fit together and obtain functional layer, concrete, the functional layer of the present embodiment includes two-layer Graphene functional layer together bonded to each other, and adopts OCA optical cements to fit together in two layer graphene functional layers；
3) functional layer and flexible cover plate 1 are fit together, between functional layer and the flexible cover plate 1 of the present embodiment, adopt the laminating of OCA optical cement.
Embodiment described above is only the preferred embodiment lifted for absolutely proving the present invention, and protection scope of the present invention is not limited to this.Equivalent replacement that those skilled in the art make on basis of the present invention or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (8)
1. a graphene roll musical form capacitive touch screen, it is characterized in that: include flexible cover plate and be fitted in the functional layer below described flexible cover plate, described functional layer includes at least two-layer Graphene functional layer together bonded to each other, is positioned at described Graphene functional layer topmost and is fitted and connected with described flexible cover plate；Described Graphene functional layer includes base material, is provided with graphene conductive film in the middle part of described substrate upper surface, and the both sides setting regions of described graphene conductive film is respectively equipped with the conductive metallic material being positioned at described substrate upper surface.
2. graphene roll musical form capacitive touch screen according to claim 1, it is characterised in that: all adopt OCA optical cement to fit between Graphene functional layer and between described Graphene functional layer and described flexible cover plate topmost described in adjacent two layers.
3. graphene roll musical form capacitive touch screen according to claim 1, it is characterised in that: described flexible cover plate adopts PET material to make.
4. graphene roll musical form capacitive touch screen according to claim 1, it is characterised in that: described base material adopts PI or PET material to make.
5. the graphene roll musical form capacitive touch screen according to any one of claim 1-4, it is characterised in that: the thickness of described base material is less than 20um.
6. one kind is used for the manufacture method of graphene roll musical form capacitive touch screen as described in any one of claim 1-5, it is characterised in that: comprise the steps:
1) Graphene functional layer is made:
A. described graphene conductive film is transferred on described base material, and graphene conductive film is patterned process；
B. the setting regions in described graphene conductive film both sides deposits described conductive metallic material, and forms described graphene conductive film external circuits；
2) Graphene functional layer is fit together obtain described functional layer；
3) described functional layer and described flexible cover plate are fit together.
7. graphene roll musical form capacitive touch screen manufacture method according to claim 6, it is characterised in that: adopt the laminating of OCA optical cement between described Graphene functional layer and between described functional layer and described flexible cover plate.
8. graphene roll musical form capacitive touch screen manufacture method according to claim 6, it is characterised in that: described graphene conductive film adopts vapour deposition process to generate on Copper Foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610078783.4A CN105739802A (en) | 2016-02-04 | 2016-02-04 | Graphene curled type capacitive touch screen and manufacturing method of the graphene curled type capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610078783.4A CN105739802A (en) | 2016-02-04 | 2016-02-04 | Graphene curled type capacitive touch screen and manufacturing method of the graphene curled type capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105739802A true CN105739802A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610078783.4A Pending CN105739802A (en) | 2016-02-04 | 2016-02-04 | Graphene curled type capacitive touch screen and manufacturing method of the graphene curled type capacitive touch screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107450784A (en) * | 2017-05-22 | 2017-12-08 | 茆胜 | A kind of flexible projecting type capacitor touch screen and preparation method thereof |
| CN109032418A (en) * | 2018-08-10 | 2018-12-18 | 北京旭碳新材料科技有限公司 | A kind of flexible touch screen and preparation method thereof |
-
2016
- 2016-02-04 CN CN201610078783.4A patent/CN105739802A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107450784A (en) * | 2017-05-22 | 2017-12-08 | 茆胜 | A kind of flexible projecting type capacitor touch screen and preparation method thereof |
| CN109032418A (en) * | 2018-08-10 | 2018-12-18 | 北京旭碳新材料科技有限公司 | A kind of flexible touch screen and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160706 |