CN105487721A - Graphene self-inductance type pressure-sensing touch screen and making method thereof - Google Patents
Graphene self-inductance type pressure-sensing touch screen and making method thereof Download PDFInfo
- Publication number
- CN105487721A CN105487721A CN201610078799.5A CN201610078799A CN105487721A CN 105487721 A CN105487721 A CN 105487721A CN 201610078799 A CN201610078799 A CN 201610078799A CN 105487721 A CN105487721 A CN 105487721A
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- Prior art keywords
- graphene
- conductive film
- graphene conductive
- self
- sensing touch
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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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- 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 self-inductance type pressure-sensing touch screen. The graphene self-inductance type pressure-sensing touch screen comprises a substrate, wherein a graphene conductive film is arranged on the substrate, metal materials are arranged on the two sides of the graphene conductive film, and the graphene conductive film is bonded with a cover plate through an optical adhesive. The invention further discloses a making method of the graphene self-inductance type pressure-sensing touch screen. The making method comprises the following steps that 1, the graphene conductive film is transferred to the substrate, and the metal materials are piled on the two sides of the graphene conductive film; 2, an etching method is adopted to etch a designated pattern in the graphene conductive film; 3, the etching method is adopted to etch the metal materials into set circuits, self-inductance type capacitive screen signal detection circuits are designed in the circuits, and a detection circuit of each graphene line resistance signal is detected; 4, the patterned graphene conductive film is coated with the optical adhesive to design a graphene pressure sensor; 5, the graphene pressure sensor is bound with a peripheral IC circuit, and the cover plate is arranged in an adhered mode.
Description
Technical field
The present invention relates to a kind of touch screen, concrete is a kind of Graphene self-induction type pressure sensing touch-screen and preparation method thereof.
Background technology
Touch input mode is from touch screens, and the large-scale application of capacitance plate then improves the convenience of electronic product input greatly.From apple smart mobile phone first Application capacitance plate, capacitance plate experienced by the development of explosion type, and its market scale constantly expands.At present, capacitance plate market is because supply exceed demand, and product price constantly declines, and profit continues to reduce.Thus cause the bankruptcy of large quantities of small-scale capacitance plate production firm.And no matter be touch screens or capacitance plate, be all a kind of input mode of two dimension, we can only position on plane of orientation.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of Graphene self-induction type pressure sensing touch-screen and preparation method thereof, by contact execute stressed size and present different return signals, realize three-dimensional touch.
For achieving the above object, the invention provides following technical scheme:
The present invention first proposed a kind of Graphene self-induction type pressure sensing touch-screen, comprise substrate, described substrate is provided with graphene conductive film, the both sides of described graphene conductive film are provided with and are positioned at described suprabasil metal material, and described graphene conductive film is fitted with cover plate by optical cement with it.
Further, described substrate adopts PET, PMMA or PDMS to make.
Further, described graphene conductive film comprises one deck graphene conductive layer, two-layer graphene conductive layer, minority layer graphene conductive layer or three-dimensional grapheme material film.
Further, described metal material is silver, silver slurry, copper, nickel, gold, aluminium, titanium alloy or nickel alloy.
Further, described graphene conductive film is etched to the figure of setting.
Further, described metal material is etched to the circuit of setting.
Further, described optical cement adopts OCA optical cement.
The invention allows for a kind of method for making for making Graphene self-induction type pressure sensing touch-screen as above, comprising the steps:
1) adopt mode growing graphene conductive film on metal of chemical vapor deposition, graphene conductive film is transferred in described substrate, and piles up described metal material in the both sides of graphene conductive film;
2) engraving method is adopted graphene conductive film to be etched to the figure of setting, to realize the graphical of graphene conductive film;
3) adopt engraving method that metal material is etched to initialization circuit, and in described circuit, design the testing circuit of self-induction type capacitance plate signal deteching circuit and the every root Graphene line resistance signal of detection;
4) to fit on patterned described graphene conductive film optical cement, to realize Graphene pressure sensor design;
5) described Graphene pressure transducer and peripheral IC circuit are bound, and described cover plate of fitting.
Beneficial effect of the present invention is:
Graphene self-induction type pressure sensing touch-screen of the present invention, utilize the peculiar property of graphene conductive film, devise corresponding touch screen structure, thus achieve the function of voltage-controlled touch, it can not only realize the particular location of locating finger touch in the plane, simultaneously in third dimension, by pressing the detection of different pressures to finger, three-dimensional signal input can be realized.
When not having finger presses, we think that Graphene is in the state of a balance, and the signals such as the resistance of Graphene are in a normal value; After certain pressure is pressed, original equilibrium state is broken, and the signals such as resistance change, and under different pressure states, the intensity of variation of signal is different; By detecting the situation of change of the electric signal such as resistance, we can judge the size of pressure, thus realize the input of third dimension information.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearly, the invention provides following accompanying drawing and being described:
Fig. 1 is the structural representation of Graphene self-induction type pressure sensing touch-screen embodiment of the present invention;
Fig. 2 is the Making programme figure of the present embodiment Graphene self-induction type pressure sensing touch-screen.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, can better understand the present invention and can be implemented, but illustrated embodiment is not as a limitation of the invention to make those skilled in the art.
As shown in Figure 1, be the structural representation of Graphene self-induction type pressure sensing touch-screen embodiment of the present invention.The Graphene self-induction type pressure sensing touch-screen of the present embodiment, comprise substrate 1, substrate 1 is provided with graphene conductive film 2, and the both sides of graphene conductive film 2 are provided with and are positioned at suprabasil metal material 3, and graphene conductive film 2 is fitted with cover plate 5 by optical cement 4 with it.The optical cement 4 of the present embodiment adopts OCA optical cement.
Further, substrate 1 adopts PET, PMMA or PDMS to make, and the substrate 1 of the present embodiment adopts PET to make.Graphene conductive film comprises one deck graphene conductive layer, two-layer graphene conductive layer, minority layer graphene conductive layer or three-dimensional grapheme material film, and the graphene conductive film of the present embodiment comprises one deck graphene conductive layer.Metal material 3 is silver, silver slurry, copper, nickel, gold, aluminium, titanium alloy or nickel alloy, and the metal material 3 of the present embodiment is silver slurry.
Further, graphene conductive film 2 is etched to the figure of setting, and metal material 3 is etched to the circuit of setting.
The Graphene self-induction type pressure sensing touch-screen of the present embodiment, utilize the peculiar property of graphene conductive film 2, devise corresponding touch screen structure, thus achieve the function of voltage-controlled touch, it can not only realize the particular location of locating finger touch in the plane, simultaneously in third dimension, by pressing the detection of different pressures to finger, three-dimensional signal input can be realized.When not having finger presses, we think that Graphene is in the state of a balance, and the signals such as the resistance of Graphene are in a normal value; After certain pressure is pressed, original equilibrium state is broken, and the signals such as resistance change, and under different pressure states, the intensity of variation of signal is different; By detecting the situation of change of the electric signal such as resistance, we can judge the size of pressure, thus realize the input of third dimension information.
Elaborate below in conjunction with the embodiment of above-mentioned Graphene self-induction type pressure sensing touch-screen to Graphene self-induction type pressure sensing touch-screen method for making of the present invention.
The Graphene self-induction type pressure sensing touch-screen method for making of the present embodiment, comprises the steps:
1) adopt mode growing graphene conductive film 2 on metal of chemical vapor deposition, graphene conductive film 2 is transferred in substrate 1, and at the both sides deposit material 3 of graphene conductive film 2;
2) engraving method is adopted graphene conductive film 2 to be etched to the figure of setting, to realize the graphical of graphene conductive film 2;
3) adopt engraving method that metal material 3 is etched to initialization circuit, and design the testing circuit of self-induction type capacitance plate signal deteching circuit and the every root Graphene line resistance signal of detection in circuit; Just can be realized the function of capacitance plate by self-induction type capacitance plate signal deteching circuit, the touch-input function of third dimension can be realized by the testing circuit detecting every root Graphene line resistance signal;
4) to fit on patterned graphene conductive film 2 optical cement 4, to realize Graphene pressure sensor design;
5) Graphene pressure transducer and peripheral IC circuit are bound, and cover plate 5 of fitting.
The above embodiment is only that protection scope of the present invention is not limited thereto in order to absolutely prove the preferred embodiment that the present invention lifts.The equivalent alternative or conversion that those skilled in the art do on basis of the present invention, 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 self-induction type pressure sensing touch-screen, it is characterized in that: comprise substrate, described substrate is provided with graphene conductive film, the both sides of described graphene conductive film are provided with and are positioned at described suprabasil metal material, and described graphene conductive film is fitted with cover plate by optical cement with it.
2. Graphene self-induction type pressure sensing touch-screen according to claim 1, is characterized in that: described substrate adopts PET, PMMA or PDMS to make.
3. Graphene self-induction type pressure sensing touch-screen according to claim 1, is characterized in that: described graphene conductive film comprises one deck graphene conductive layer, two-layer graphene conductive layer, minority layer graphene conductive layer or three-dimensional grapheme material film.
4. Graphene self-induction type pressure sensing touch-screen according to claim 1, is characterized in that: described metal material is silver, silver slurry, copper, nickel, gold, aluminium, titanium alloy or nickel alloy.
5. Graphene self-induction type pressure sensing touch-screen according to claim 1, is characterized in that: described graphene conductive film is etched to the figure of setting.
6. Graphene self-induction type pressure sensing touch-screen according to claim 1, is characterized in that: described metal material is etched to the circuit of setting.
7. Graphene self-induction type pressure sensing touch-screen according to claim 1, is characterized in that: described optical cement adopts OCA optical cement.
8., for making a method for making for the Graphene self-induction type pressure sensing touch-screen as described in any one of claim 1-7, it is characterized in that: comprise the steps:
1) adopt mode growing graphene conductive film on metal of chemical vapor deposition, graphene conductive film is transferred in described substrate, and piles up described metal material in the both sides of graphene conductive film;
2) engraving method is adopted graphene conductive film to be etched to the figure of setting, to realize the graphical of graphene conductive film;
3) adopt engraving method that metal material is etched to initialization circuit, and in described circuit, design the testing circuit of self-induction type capacitance plate signal deteching circuit and the every root Graphene line resistance signal of detection;
4) to fit on patterned described graphene conductive film optical cement, to realize Graphene pressure sensor design;
5) described Graphene pressure transducer and peripheral IC circuit are bound, and described cover plate of fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610078799.5A CN105487721A (en) | 2016-02-04 | 2016-02-04 | Graphene self-inductance type pressure-sensing touch screen and making method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610078799.5A CN105487721A (en) | 2016-02-04 | 2016-02-04 | Graphene self-inductance type pressure-sensing touch screen and making method thereof |
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| CN105487721A true CN105487721A (en) | 2016-04-13 |
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| CN201610078799.5A Pending CN105487721A (en) | 2016-02-04 | 2016-02-04 | Graphene self-inductance type pressure-sensing touch screen and making method thereof |
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| CN103324376A (en) * | 2013-07-10 | 2013-09-25 | 无锡力合光电石墨烯应用研发中心有限公司 | One-chip type capacitive touch screen and preparation method thereof |
| CN104020919A (en) * | 2014-05-20 | 2014-09-03 | 深圳市航泰光电有限公司 | Graphene capacitive type touch screen and production and manufacturing method thereof |
| CN104220964A (en) * | 2010-12-24 | 2014-12-17 | 石墨烯广场株式会社 | Touch sensor using graphin for simultaneously detecting pressure and position |
| CN104571762A (en) * | 2014-12-31 | 2015-04-29 | 常州二维碳素科技有限公司 | Graphene touch screen and manufacturing process thereof |
| CN204706017U (en) * | 2015-06-29 | 2015-10-14 | 重庆墨希科技有限公司 | The flexible capacitance touch screen of a kind of single sheet |
| CN205507724U (en) * | 2016-02-04 | 2016-08-24 | 重庆墨希科技有限公司 | Graphite alkene self -induction formula pressure sensing touch -sensitive screen |
-
2016
- 2016-02-04 CN CN201610078799.5A patent/CN105487721A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104220964A (en) * | 2010-12-24 | 2014-12-17 | 石墨烯广场株式会社 | Touch sensor using graphin for simultaneously detecting pressure and position |
| CN103324376A (en) * | 2013-07-10 | 2013-09-25 | 无锡力合光电石墨烯应用研发中心有限公司 | One-chip type capacitive touch screen and preparation method thereof |
| CN104020919A (en) * | 2014-05-20 | 2014-09-03 | 深圳市航泰光电有限公司 | Graphene capacitive type touch screen and production and manufacturing method thereof |
| CN104571762A (en) * | 2014-12-31 | 2015-04-29 | 常州二维碳素科技有限公司 | Graphene touch screen and manufacturing process thereof |
| CN204706017U (en) * | 2015-06-29 | 2015-10-14 | 重庆墨希科技有限公司 | The flexible capacitance touch screen of a kind of single sheet |
| CN205507724U (en) * | 2016-02-04 | 2016-08-24 | 重庆墨希科技有限公司 | Graphite alkene self -induction formula pressure sensing touch -sensitive screen |
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Application publication date: 20160413 |
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