CN203038251U - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
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- CN203038251U CN203038251U CN 201220719902 CN201220719902U CN203038251U CN 203038251 U CN203038251 U CN 203038251U CN 201220719902 CN201220719902 CN 201220719902 CN 201220719902 U CN201220719902 U CN 201220719902U CN 203038251 U CN203038251 U CN 203038251U
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Abstract
The utility model provides a capacitive touch screen and belongs to the technical field of capacitive screens. The capacitive touch screen comprises a glass substrate, a grapheme film layer and a glass cover layer which are stacked. The grapheme film layer is formed on the glass substrate. The glass cover layer is formed on the grapheme film layer. The capacitive touch screen utilizing grapheme as a component is simple in structure and good in touch effect.
Description
Technical field
The utility model belongs to the touch-screen field, relates in particular to a kind of capacitance touch screen.
Background technology
Current capacitive touch screen structure mainly is divided into three kinds, Glass-Glass structure, film-Glass structure and structure.Touch-screen in the market mainly is to be divided into two parts, and Cover Lens cover plate and Sensor sensor carry out graphical treatment to Sensor glass earlier, fit together with Cover Lens again, have just constituted common capacitance touch screen.This method for making operation is various, complex process, and inefficiency, and cost is higher.Structure is the monolithic glass scheme, with Cover lens and Sensor all be integrated in one on glass, use same block of glass can form touch-screen, the method has reduced the production process of present touch-screen, has guaranteed quality and reduces cost.This structure is the main research approach of current each company.But, present product mainly be with ITO as conducting film because reserves and the price factor of indium, and the heavy demand of flat-panel display device, cost is the problem that each big producer is concerned about always.
The utility model content
In view of this, the utility model provides a kind of capacitance touch screen, solves capacitance plate cost height, inefficient problem in the prior art.
The utility model is achieved in that
A kind of capacitance touch screen comprises mutually stacked substrate of glass, Graphene rete and glass cap rock, and this Graphene rete is formed on this substrate of glass, and this glass cap rock is formed on this Graphene rete.
Further, the thickness of this Graphene rete is 0.335-1.34nm.
Further, the thickness of this substrate of glass is 0.2-2mm.
Further, the thickness of this glass cap rock is 0.5-1.1mm.
Capacitance touch screen of the present utility model is made up of substrate of glass and Graphene rete, and is simple in structure, owing to use Graphene as the assembly of capacitance plate, it is respond well to realize that this touch-screen touches.
Description of drawings
Fig. 1 is the longitudinal section of the capacitance touch screen of the utility model embodiment;
Fig. 2 shows the vertical view of the utility model capacitance touch screen.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The conductive material of the utility model capacitance touch screen is Graphene, substitutes the ITO of big system as conducting film, forms pattern through over etching again.Because Graphene has the two dimensional crystal structure, can regard the graphite of monoatomic layer as, at room temperature also has the carrier mobility up to 200,000 cm2/vs, in the film material that can make at present, the thickness of Graphene is the thinnest, and specific surface area is also bigger.In addition, Graphene has adamantine intensity, elastic modulus and the temperature conductivity of surpassing, even single-layer graphene, can be by the material greater than helium atom yet.The character of above-mentioned Graphene makes capacitance touch screen of the present utility model have good effect.
Please participate in the longitudinal section that Fig. 1, Fig. 1 show the utility model capacitance touch screen, Fig. 2 shows the vertical view of the utility model capacitance touch screen; This capacitance touch screen comprises among mutually stacked substrate of glass 1, Graphene rete 2 and glass cap rock 3(Fig. 2 not shown), this Graphene rete 2 is formed on this substrate of glass 1, and this glass cap rock 3 is formed on this Graphene rete 2.Also namely, the utility model capacitance touch screen is mutually stacked three-decker, and lower floor is substrate of glass 1, and the middle layer is Graphene rete 2, and the superiors are glass cap rock 3.
The thickness of this Graphene rete 2 is 0.335-1.34nm.Further, the thickness of this substrate of glass 1 is 0.2-2mm.The thickness of this glass cap rock 3 is 0.5-1.1mm.
Have certain pierced pattern from this Graphene rete 2 of Fig. 2, this pierced pattern does not have special requirement, according to the needs design of producing.
Further, see also Fig. 1, also comprise printing ink 4 on this capacitance touch screen, this printing ink 4 is frame around capacitance touch screen, specifically without limits.
Capacitance touch screen preparation method of the present utility model is as follows:
1, get white glass, clean, after drying up, spin coater is made printing ink, and thickness 1.3-1.8 μ m passes through preceding baking again, and exposure is developed, the back baking.
2, in vapor deposition apparatus, feed methane gas, put into Copper Foil, be heated to 1000 ℃, separate out carbon atom on the Copper Foil, form grapheme material; Coat organic glass, solidify again, Copper Foil is dissolved away; Be attached to again and have the on glass of printing ink, the organic glass of reverse side is dissolved away.Thickness is 0.335-1.34nm, forms Graphene glass.
3, with optical fiber laser marking machine etching glass, power 15-20W forms the Graphene pattern;
4, form the glass cap rock at this Graphene pattern, obtain complete Graphene capacitance touch screen.
Particularly, former sheet glass cleans through cleaning machine, and after drying up, serigraphy black ink, thickness are 1.3-1.8 μ m, by 85 ℃ of 5min of preceding baking, and exposure 100-140s, development 60-90s, 230 ℃ of 60min of back baking.Transfer printing graphene film again, thickness is 0.335-1.34nm, with optical fiber laser marking machine etching Graphene, power 15-20W, speed 1000-5000mm/s forms the function pattern, obtains the Graphene capacitance touch screen.The concrete technology of laser marking has complete exposure in CN201110375846.
Technical advantage of the present utility model is grapheme material is applied in the product, and thickness is low, makes simple.Use laser marking machine etching Graphene, reduced production process than traditional etching, and reduced production cost; And its function is good, is the capacitance touch screen based on graphene conductive of multiple point touching.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. a capacitance touch screen is characterized in that, comprises mutually stacked substrate of glass, Graphene rete and glass cap rock, and described Graphene rete is formed on the described substrate of glass, and described glass cap rock is formed on the described Graphene rete.
2. capacitance touch screen as claimed in claim 1 is characterized in that, the thickness of described Graphene rete is 0.335-1.34nm.
3. capacitance touch screen as claimed in claim 1 is characterized in that, the thickness of described substrate of glass is 0.2-2mm.
4. capacitance touch screen as claimed in claim 1 is characterized in that, the thickness of described glass cap rock is 0.5-1.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719902 CN203038251U (en) | 2012-12-24 | 2012-12-24 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719902 CN203038251U (en) | 2012-12-24 | 2012-12-24 | Capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203038251U true CN203038251U (en) | 2013-07-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220719902 Expired - Fee Related CN203038251U (en) | 2012-12-24 | 2012-12-24 | Capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203038251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104866155A (en) * | 2015-06-12 | 2015-08-26 | 中国电子科技集团公司第十三研究所 | Sapphire cover plate graphene projected capacitance screen and preparation method |
| CN106782102A (en) * | 2016-12-11 | 2017-05-31 | 北京方瑞博石数字技术有限公司 | A kind of optical fiber of conductive arbitrary surface is led as screen |
-
2012
- 2012-12-24 CN CN 201220719902 patent/CN203038251U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104866155A (en) * | 2015-06-12 | 2015-08-26 | 中国电子科技集团公司第十三研究所 | Sapphire cover plate graphene projected capacitance screen and preparation method |
| CN106782102A (en) * | 2016-12-11 | 2017-05-31 | 北京方瑞博石数字技术有限公司 | A kind of optical fiber of conductive arbitrary surface is led as screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20181224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |