CN106293182A - A kind of contact panel based on Graphene and preparation method thereof - Google Patents
A kind of contact panel based on Graphene and preparation method thereof Download PDFInfo
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- CN106293182A CN106293182A CN201510297557.0A CN201510297557A CN106293182A CN 106293182 A CN106293182 A CN 106293182A CN 201510297557 A CN201510297557 A CN 201510297557A CN 106293182 A CN106293182 A CN 106293182A
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Abstract
The invention discloses a kind of contact panel based on Graphene, including transparency carrier;Described transparency carrier is provided with transparency conductive electrode layer, wherein said transparency conductive electrode layer includes multiple touch pattern, described touch pattern is mutually isolated, is electrically insulated, and wherein said touch pattern includes graphene film layer and is formed at the conductive polymer coating on graphene film layer;Described transparency conductive electrode layer is provided with protective clear layer.The present invention utilizes Graphene to solve in prior art to use conducting polymer poor as electric conductivity present in contact panel transparency conductive electrode layer, the electric conductivity using binding agent bonding conducting polymer and transparency carrier to produce changes, the problem that resistance fluctuation is big.
Description
Technical field
The present invention relates to the technical field that contact panel manufactures, be related specifically to a kind of based on Graphene tactile
Control panel and preparation method thereof.
Background technology
In recent years, contact panel as a kind of up-to-date input equipment, be the simplest, convenient, natural one
Kind of man-machine interaction mode, it gives multimedia equipment with brand-new looks, is extremely attractive brand-new many
Media interactive device, is not only widely used in the electronic equipment such as flat board, mobile phone, is also applied to large-scale
Display such as TV, computer etc..Along with the application of contact panel is more and more extensive, to contact panel
High transmission rate and the requirement of minimal thickness more and more higher.
At present, contact panel use expensive tin indium oxide (ITO) film as transparency conductive electrode layer, but
Owing to ito film is to form very thin one layer mechanical performance height on the surface of flexible polymer base material in fact
Tin indium oxide and produce, so when ito film heated impact time, film surface easily produces mechanically
Damage, rupture, thus the effect of electrode layer can not be played, cause touch-control not to be identified.
Conducting polymer is the research field that 20 century 70s grow up, because its excellent electricity
Lead and be with a wide range of applications with chemical property and receive much concern.At present, occurred using conduction poly-
Compound substitutes traditional tin indium oxide (ITO) film contact panel as transparency conductive electrode layer, such as patent
201010579728.6 a kind of capacitive touch screen proposed, this capacitive touch screen includes: transparent substrate;
Being formed at the transparency electrode on described transparent substrate, this transparency electrode is formed by conducting polymer;It is formed at institute
Stating the protective clear layer in transparency electrode, described protective clear layer has transparent characteristic;And it is formed at described
Clear binder on protective clear layer.Compared with ito film, use conducting polymer as electrically conducting transparent electricity
Pole layer, the most soft, flexible deformation, may be used for flexible contact panel, and be not likely to produce mechanically
Damage, rupture, there is longer service life, and can be coated directly onto on base material, low temperature in atmosphere
Under the conditions of film forming characteristics, there is higher volume production ability.But compared with ito film, leading of conducting polymer
Electrical property is poor, and in prior art, uses conducting polymer as the transparency conductive electrode layer of contact panel,
Generally using clear binder transparent conductive polymer and substrate to be binded, this easily causes conducting polymer
Thing reacts with binding agent, makes transparent conductive polymer generation electric conductivity produce change, causes resistance ripple
The dynamic scope exceeding permission, the appearance of the problem such as cause touch-control identification insensitive.
Summary of the invention
It is an object of the invention to provide a kind of contact panel based on Graphene and preparation method thereof, it is intended to solve
Certainly prior art use conducting polymer as electric conductivity present in contact panel transparency conductive electrode layer
Difference, the electric conductivity using binding agent bonding conducting polymer and transparency carrier to produce changes, resistance ripple
Dynamic big problem.
To this end, the present invention is by the following technical solutions:
A kind of contact panel based on Graphene, including
Transparency carrier;
Being provided with transparency conductive electrode layer on described transparency carrier, wherein said transparency conductive electrode layer includes many
Individual touch pattern, described touch pattern is mutually isolated, is electrically insulated, and wherein said touch pattern includes graphite
Alkene thin layer and be formed at the conductive polymer coating on graphene film layer;
Described transparency conductive electrode layer is provided with protective clear layer.
Preferably, described touch pattern includes first direction touch pattern and second direction touch pattern, described
First direction touch pattern and second direction touch pattern intersect and arrange continuously and be mutually electrically insulated.
Preferably, described conductive polymer coating is poly-3,4-rthylene dioxythiophene/poly styrene sulfonate, gathers
Aniline, polyacetylene or polyphenylacetylene, its thickness is 30 μm~70 μm.
Preferably, described graphene film layer thickness is 0.335nm-3.35nm, is 1-10 layer carbon atom.
Preferably, described transparency carrier is glass, PET, PMMA, PVC, PC, PP, PS or PE,
Its thickness is 50 μm~100 μm;Described protective layer be PET, PMMA, PVC, PC, PP, PS or
Person PE, its thickness is 50 μm~100 μm.
Present invention also offers the manufacture method of a kind of contact panel based on Graphene, comprise the steps:
1) transparency carrier is provided;
2) on described transparency carrier, last layer graphene film layer is shifted, on described graphene film layer
Carry out screen painting, solidification, graphene film layer is formed multiple conducting polymer layer pattern, wherein leads
Electric polymer layer pattern is mutually isolated, is electrically insulated;
3) by 2) substrate that obtains uses oxygen plasma to process, makes not by conductive polymer coating pattern covers
Graphene film rupture pulverizing, through over cleaning, described transparency carrier obtains multiple mutually isolated,
The touch pattern being electrically insulated, forms transparency conductive electrode layer, and wherein said touch pattern includes that Graphene is thin
Film layer and be formed at the conductive polymer coating on graphene film layer;
4) on described transparency conductive electrode layer, it is provided with protective clear layer, obtains contact panel based on Graphene.
Preferably, described method also includes being designed electric polymer layer pattern by the pattern of design and printing half tone.
Preferably, described graphene film layer uses CVD to prepare, and its thickness is 0.335nm-3.35nm,
It is 1-10 layer carbon atom.
Preferably, described conductive polymer coating is poly-3,4-rthylene dioxythiophene/poly styrene sulfonate, gathers
Aniline, polyacetylene or polyphenylacetylene, its thickness is 30 μm~70 μm.
Preferably, described transparency carrier is glass, PET, PMMA, PVC, PC, PP, PS or PE,
Its thickness is 50 μm~100 μm;Described protective layer be PET, PMMA, PVC, PC, PP, PS or
Person PE, its thickness is 50 μm~100 μm.
The present invention uses above technical scheme, described contact panel to use graphene film layer on the transparent substrate
And the conductive polymer coating being formed on graphene film layer is combined as the touch-control figure of transparency conductive electrode layer
Case, can solve transparency carrier and conductive polymer coating to be binded with binding agent in prior art, cause
Conducting polymer react with binding agent, make transparent conductive polymer generation electric conductivity produce change,
The resistance fluctuation problem caused, and Graphene has high conductivity, is combined as transparent leading with conducting polymer
The touch pattern of electricity electrode layer, compensate for the problem that in prior art, the electric conductivity of conducting polymer is relatively low,
Simultaneously because Graphene has high flexibility, it is combined as transparency conductive electrode layer with itself and conducting polymer
Touch pattern, the most soft, flexible deformation, may be used for flexible contact panel, and be not likely to produce machinery
Property ground damage, rupture, there is longer service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of present invention contact panel based on Graphene.
Fig. 2 is the touch pattern schematic diagram of present invention contact panel based on Graphene.
Fig. 3 is the structural representation of transparency carrier of the present invention.
Fig. 4 is the structural representation after the present invention shifts graphene film layer on the transparent substrate.
Fig. 5 is present invention structural representation on graphene film layer after screen painting conducting polymer layer pattern.
Fig. 6 is the structural representation that the present invention forms transparency conductive electrode layer on the transparent substrate.
Detailed description of the invention
In order to make objects, features and advantages of the present invention more clear, below in conjunction with drawings and Examples,
The detailed description of the invention of the present invention is made more detailed description, in the following description, elaborates a lot
Concrete details is so that sufficiently understanding the present invention, but the present invention can be to be much different from its of description
He implements mode.Therefore, the present invention not by following discloses be embodied as limited.
A kind of contact panel based on Graphene, as it is shown in figure 1, include
Transparency carrier 1;
Being provided with transparency conductive electrode layer 2 on described transparency carrier 1, wherein said transparency conductive electrode layer 2 wraps
Including multiple touch pattern 20, described touch pattern 20 is mutually isolated, is electrically insulated, wherein said touch pattern
20 include graphene film layer 201 and the conductive polymer coating 202 being formed on graphene film layer 201;
Described transparency conductive electrode layer 2 is provided with protective clear layer 3.
Wherein, as in figure 2 it is shown, described touch pattern 20 includes first direction touch pattern 21 and second party
To touch pattern 22, described first direction touch pattern 21 and second direction touch pattern 22 company of intersecting
Continue and arrange and mutually isolated, be electrically insulated.
Wherein, described conductive polymer coating 202 be poly-3,4-rthylene dioxythiophene/poly styrene sulfonate,
Polyaniline, polyacetylene or polyphenylacetylene, its thickness is 30 μm~70 μm.
Wherein, described graphene film layer 201 thickness is 0.335nm-3.35nm, is 1-10 layer carbon former
Son.
Wherein, described transparency carrier 1 is glass, PET, PMMA, PVC, PC, PP, PS or PE,
Its thickness is 50 μm~100 μm;Described protective layer 3 is PET, PMMA, PVC, PC, PP, PS
Or PE, its thickness is 50 μm~100 μm.
Present invention also offers the manufacture method of a kind of contact panel based on Graphene, comprise the steps:
1) transparency carrier 1 is provided, as shown in Figure 3;
2) on described transparency carrier 1, last layer graphene film layer 201 is shifted, as shown in Figure 4, in institute
Screen painting is carried out on the graphene film layer 201 stated, solidification, graphene film layer 201 is formed many
Individual conducting polymer layer pattern 202, wherein conductive polymer coating 202 pattern is mutually isolated, is electrically insulated,
As shown in Figure 5;
3) by 2) substrate that obtains uses oxygen plasma to process, makes not by conducting polymer layer pattern 202
The graphene film 201 covered ruptures pulverizing, through over cleaning, obtains many on described transparency carrier 1
Touch pattern 20 that is individual mutually isolated, that be electrically insulated, forms transparency conductive electrode layer 2, wherein said touch-control
Pattern 20 includes graphene film layer 201 and is formed at the conductive polymer coating on graphene film layer 201
202, as shown in Figure 6;
4) on described transparency conductive electrode layer 2, it is provided with protective clear layer 3, obtains touch-control based on Graphene
Panel, as shown in Figure 1.
Wherein, described method also includes being designed electric polymer layer pattern by the pattern of design and printing half tone.
Wherein, described graphene film layer 201 uses CVD to prepare, and its thickness is 0.335nm-3.35nm,
It is 1-10 layer carbon atom.
Wherein, described conductive polymer coating 202 be poly-3,4-rthylene dioxythiophene/poly styrene sulfonate,
Polyaniline, polyacetylene or polyphenylacetylene, its thickness is 30 μm~70 μm.
Wherein, described transparency carrier 1 is glass, PET, PMMA, PVC, PC, PP, PS or PE,
Its thickness is 50 μm~100 μm;Described protective layer 3 is PET, PMMA, PVC, PC, PP, PS
Or PE, its thickness is 50 μm~100 μm.
Use method of the present invention, carry out following experiment and obtain contact panel based on Graphene:
Embodiment one
Wherein transparency carrier is PET, and thickness is 50 μm;The thickness of graphene film layer is 0.335nm, i.e.
1 layer of carbon atom;Conductive polymer coating uses poly-3,4-rthylene dioxythiophene/poly styrene sulfonate, and thickness is
30μm;Protective layer is PET, and thickness is 50 μm.
Embodiment two
Wherein transparency carrier is PET, and thickness is 75 μm;The thickness of graphene film layer is 1.675nm, i.e.
5 layers of carbon atom;Conductive polymer coating uses poly-3,4-rthylene dioxythiophene/poly styrene sulfonate, and thickness is
30 μm, protective layer is PET, and thickness is 75 μm.
Embodiment three
Wherein transparency carrier is PET, and thickness is 100 μm;The thickness of graphene film layer is 3.35nm, i.e.
10 layers of carbon atom;Conductive polymer coating uses poly-3,4-rthylene dioxythiophene/poly styrene sulfonate, thickness
Being 30 μm, protective layer is PET, and thickness is 75 μm.
The electric conductivity of the contact panel that above-mentioned experiment obtains, resistance stability, light transmittance are tested,
Test result is as follows:
Embodiment | Conductivity | Resistance stability | Light transmittance |
One | 92.3% | Well | 95.6% |
Two | 94.5% | Well | 94.2% |
Three | 94.9% | Well | 93.4% |
It follows that use contact panel based on Graphene prepared by method of the present invention, resistance is steady
Fixed, electric conductivity is strong, solves and uses conducting polymer as contact panel electrically conducting transparent electricity in prior art
Present in the layer of pole, electric conductivity is poor, uses the conduction that binding agent bonding conducting polymer produces with transparency carrier
Performance changes, the problem that resistance fluctuation is big.And Graphene light transmittance height does not interferes with contact panel
Light transmittance.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (10)
1. a contact panel based on Graphene, it is characterised in that include
Transparency carrier;
Being provided with transparency conductive electrode layer on described transparency carrier, wherein said transparency conductive electrode layer includes many
Individual touch pattern, described touch pattern is mutually isolated, is electrically insulated, and wherein said touch pattern includes graphite
Alkene thin layer and be formed at the conductive polymer coating on graphene film layer;
Described transparency conductive electrode layer is provided with protective clear layer.
A kind of contact panel based on Graphene the most according to claim 1, it is characterised in that described
Touch pattern includes first direction touch pattern and second direction touch pattern, described first direction touch pattern
Intersect with second direction touch pattern and arrange continuously and mutually isolated, be electrically insulated.
A kind of contact panel based on Graphene the most according to claim 1, it is characterised in that described
Conductive polymer coating is poly-3,4-rthylene dioxythiophene/poly styrene sulfonate, polyaniline, polyacetylene or poly-
Phenylacetylene, its thickness is 30 μm~70 μm.
A kind of contact panel based on Graphene the most according to claim 1, it is characterised in that described
Graphene film layer thickness is 0.335nm-3.35nm, is 1-10 layer carbon atom.
A kind of contact panel based on Graphene the most according to claim 1, it is characterised in that described
Transparency carrier is glass, PET, PMMA, PVC, PC, PP, PS or PE, its thickness be 50 μm~
100μm;Described protective layer is PET, PMMA, PVC, PC, PP, PS or PE, and its thickness is
50 μm~100 μm.
6. the manufacture method of a contact panel based on Graphene, it is characterised in that comprise the steps:
1) transparency carrier is provided;
2) on described transparency carrier, last layer graphene film layer is shifted, on described graphene film layer
Carry out screen painting, solidification, graphene film layer is formed multiple conducting polymer layer pattern, wherein leads
Electric polymer layer pattern is mutually isolated, is electrically insulated;
3) by 2) substrate that obtains uses oxygen plasma to process, makes not by conductive polymer coating pattern covers
Graphene film rupture pulverizing, through over cleaning, described transparency carrier obtains multiple mutually isolated,
The touch pattern being electrically insulated, forms transparency conductive electrode layer, and wherein said touch pattern includes that Graphene is thin
Film layer and be formed at the conductive polymer coating on graphene film layer;
4) on described transparency conductive electrode layer, it is provided with protective clear layer, obtains contact panel based on Graphene.
The manufacture method of a kind of contact panel based on Graphene the most according to claim 6, its feature
Being, described method also includes being designed electric polymer layer pattern by the pattern of design and printing half tone.
The manufacture method of a kind of contact panel based on Graphene the most according to claim 6, its feature
Being, described graphene film layer uses CVD to prepare, and its thickness is 0.335nm-3.35nm, is 1-10
Layer carbon atom.
A kind of contact panel based on Graphene the most according to claim 6, it is characterised in that described
Conductive polymer coating is poly-3,4-rthylene dioxythiophene/poly styrene sulfonate, polyaniline, polyacetylene or poly-
Phenylacetylene, its thickness is 30 μm~70 μm.
A kind of contact panel based on Graphene the most according to claim 6, it is characterised in that institute
Stating transparency carrier is glass, PET, PMMA, PVC, PC, PP, PS or PE, its thickness be 50 μm~
100μm;Described protective layer is PET, PMMA, PVC, PC, PP, PS or PE, and its thickness is
50 μm~100 μm.
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CN109298800A (en) * | 2018-09-19 | 2019-02-01 | 信利光电股份有限公司 | A kind of flexibility touch screen and preparation method thereof |
CN110413043A (en) * | 2018-04-26 | 2019-11-05 | Oppo广东移动通信有限公司 | A kind of manufacturing method of Curved screen, Curved screen and electronic equipment |
CN113556882A (en) * | 2020-04-23 | 2021-10-26 | 鹏鼎控股(深圳)股份有限公司 | Manufacturing method of transparent circuit board and transparent circuit board |
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