CN203673191U - Intelligent dimming film with grapheme as transparent conductive electrode - Google Patents
Intelligent dimming film with grapheme as transparent conductive electrode Download PDFInfo
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- CN203673191U CN203673191U CN201420014226.2U CN201420014226U CN203673191U CN 203673191 U CN203673191 U CN 203673191U CN 201420014226 U CN201420014226 U CN 201420014226U CN 203673191 U CN203673191 U CN 203673191U
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 86
- 229910021389 graphene Inorganic materials 0.000 claims description 86
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 20
- 239000011521 glass Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 13
- 229920006267 polyester film Polymers 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 3
- 239000010408 film Substances 0.000 description 46
- 239000010410 layer Substances 0.000 description 40
- 239000011159 matrix material Substances 0.000 description 28
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000001723 curing Methods 0.000 description 4
- -1 graphite alkene Chemical class 0.000 description 4
- 239000005273 liquid crystalline composite material Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Non-Insulated Conductors (AREA)
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Abstract
The utility model discloses an intelligent dimming film with grapheme as a transparent conductive electrode. Grapheme films on the upper side and the lower side are adopted as a conductive electrode, liquid crystal mixed materials are clamped between the grapheme films, transparent substrates are attached to the outer sides of the grapheme films on the upper side and the lower side, and a transparent substrate/grapheme/liquid crystal/grapheme/transparent substrate structure is formed. The edge of the upper grapheme film and the edge of the lower grapheme film are respectively provided with one or more electrode guide-out structures, and the electrode guide-out structures are connected with an external drive power source. According to the intelligent dimming film based on the grapheme electrodes, an intelligent dimming film structure with the grapheme films to replace ITO as the electrode and the guide-out structure of adopting the conductive electrode in the practical application of the intelligent dimming film according to the characteristic of the grapheme are adopted, the cost of the intelligent dimming film is effectively lowered, manufacturing cost is greatly lowered, the process is simple, and compared with an existing intelligent dimming film, the cost is lowered by more than 30 percent.
Description
Technical field
The utility model relates to a kind of intelligent light modulation film.
Background technology
Intelligent glass, claims again electronic-control dimming glass, by automatically controlled realize glass transparent and opaque between conversion, be widely applied at present house property decorate, vehicle glass, large area projection wall, office space, the fields such as public entertainment facility.The conversion of the electric-controlled light-regulating of intelligent glass, realizes by intelligent light modulation film.As most crucial parts, intelligent light modulation film be by upper and lower two-layer ITO transparent conductive film as electrode, and the composite material of the liquid crystal material being clipped in the middle and polymkeric substance form.ITO(tin indium oxide in the market) be can material selection as the unique of intelligent dimming membrane electrode, and ITO is expensive, phosphide element reserves are on earth limited, but ITO is at electron device, photoelectricity, and the domain requirement amounts such as photovoltaic are increasing.So, the utility model relates to brand-new a kind of transparent conductive film material in intelligent glass field, cost is low, and transmittance is adjustable (97.7%-10%), and electric conductivity is adjustable (square resistance is at 50-300 ohm/).
In the existing intelligent dimming membrane technology take ITO as transparency electrode, there is following problem: one, use ITO transparent membrane, ITO is unique selection; Two, ITO is expensive, and the cost of raw material is too high, and phosphide element is more rare, and on the earth, storage is limited, and ITO market demand is increasing, so the price of ITO only can be more and more higher; Three, ito thin film is more crisp, and pliability is poor, and the breakage of will rupturing more than bending 60 degree, causes component failure, so be not suitable for being used in, flexibility is required to higher occasion; The transmitance of four, ITO is low, and can not regulate arbitrarily by the restriction of sheet resistance.
Graphene is as a kind of monolayer carbon atom two-dimensional network, and its thickness only has 0.34 nanometer, therefore can be bending arbitrarily, its visible light transmissivity is 97.7%, theoretical conductance is 10E8/Sm, is to find at present best electric conductor, and be a kind of fabulous transparency conductive electrode material in theory.But due to the ultra-thin property of Graphene, in actual application process, there is very large difficulty with the connection of external power source system in Graphene electrodes, thereby fails so far grapheme material to be applied in intelligent dimming membrane technology.
Utility model content
The technical problems to be solved in the utility model is to overcome existing defect, and a kind of can be arbitrarily bending, transmittance can regulate arbitrarily and cost is low intelligent light modulation film using Graphene as transparency conductive electrode is provided;
Another object of the present utility model is to provide the preparation method of the above-mentioned intelligent light modulation film using Graphene as transparency conductive electrode.
The purpose of this utility model is carried out specific implementation by the following technical programs:
A kind of intelligent light modulation film using Graphene as transparency conductive electrode, using the graphene film of upper and lower both sides as conductive electrode, in the middle of liquid crystal mixed material is sandwiched in, outside at the graphene film of upper and lower both sides is attached with transparent base, form the structure of transparent base/Graphene/liquid crystal/Graphene/transparent base, wherein, the edge of upper and lower graphene film is respectively equipped with one or more electrode deriving structures, is connected with external drive power supply.
Further, described electrode deriving structure is the metal of coating the conductive silver paste on graphene film or fitting tightly with graphene film.
Preferably,
The thickness of described conductive silver paste is 100 nanometer ~ 200 micron;
Described metal is copper, and thickness is 10 ~ 200 microns;
Described upper/lower electrode deriving structure is positioned at same one side of intelligent light modulation film, or is positioned at as required both sides, and in the time that described upper/lower electrode deriving structure is positioned at same one side of intelligent light modulation film, upper/lower electrode deriving structure staggers up and down.
Further, described graphene film is one or more layers Graphene formation.
Further, described transparent base is clear glass, PET polyester film or is the composite structure that clear glass is adhered in PET polyester film outside.
The preparation method of the above-mentioned intelligent light modulation film using Graphene as transparency conductive electrode, comprises the steps:
1) Graphene growing is transferred on transparent base, formed transparency conducting layer, as upper strata;
2) by coating method, Graphene one side of the transparency conducting layer obtaining according to step 1) additionally arranges liquid crystal mixed material, when coating, reserves the region of certain width at the edge of transparency conducting layer, forms lower floor;
3) cover step 2 with the upper strata that method obtains of step 1)) the lower floor that obtains of method, form liquid crystal mixed material in centre, transparency conducting layer is in " sandwich " structure of both sides, form light modulation film through pressing or after solidifying, wherein, while covering lower floor on upper strata, reserve the fringe region not contacting with liquid crystal mixed material;
4) the region coating reserving in the upper and lower or point are covered to one deck conductive silver paste, or by the bonding layer of metal of conducting resinl, form electrode deriving structure, and the position that does not scribble conductive silver paste or bonding metal in described region is removed.
Preferably, while preparing transparency conducting layer in described step 1), adopt repeatedly and shift, increase the number of plies of Graphene.
Preferably, in described step 4), as required, in upper strata or lower floor, make respectively multiple electrode deriving structures according to the method for step 4), and in the time that described electrode deriving structure is positioned at same one side of intelligent light modulation film, these electrode deriving structures are staggered mutually.
The beneficial effects of the utility model:
1, the utility model utilizes Graphene to have excellent transmittance, electric conductivity and mechanical property, the intelligent light modulation film of preparation take Graphene as transparency conducting layer, its visible light transmissivity (400-700 nanometer) is adjustable at 10%-97.7%, square resistance (ohm/): 50-300;
2, the utility model intelligent light modulation film both can be used on rigidity intelligent dimming glass, also can directly be used in flexibility is had on the various curved surfaces of requirement, can be used for making various intelligent dimming glass, or be made into flexible intelligent light modulation film, be used on various curved surfaces.Can be according to specific requirement, make any shape, any size, its pliability: ultra-thin, be bent to arbitrarily 180 degree;
3, the utility model gives the electrode lead-out method as transparency conducting layer to Graphene, overcome that Graphene is ultra-thin is difficult to external problem, safe and practical, easy operating, the structural design that its electrode is drawn, can effectively avoid contact short circuit, is convenient to install, be beneficial to intelligent dimming glass and be used in different occasions, realize the ultrathin electrodes that has grapheme material;
4, the intelligent light modulation film of the utility model based on Graphene electrodes, substitute ITO(tin indium oxide using graphene film for one) as the intelligent dimming membrane structure of electrode, and for the feature of Graphene and the deriving structure of the conductive electrode in actual applications of utility model, not only effectively reduce the cost of intelligent light modulation film, and greatly reduce cost of manufacture, technique is simple, the cost reduction of more existing intelligent light modulation film more than 30%.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for instructions, is used from explanation the utility model with embodiment mono-of the present utility model, does not form restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the intelligent light modulation film sectional view using Graphene as transparency conductive electrode in the utility model embodiment 1;
Fig. 2 is the intelligent light modulation film perspective view using Graphene as transparency conductive electrode in the utility model embodiment 1;
Fig. 3 is the intelligent light modulation film sectional view using Graphene as transparency conductive electrode in the utility model embodiment 2.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
embodiment 1:
A kind of intelligent light modulation film using Graphene as transparency conductive electrode, with reference to Fig. 1-2, with the wide 2cm of graphene film 2(of upper and lower both sides, long 10cm) as conductive electrode, in the middle of liquid crystal mixed material 1 is sandwiched in, described graphene film is that double-layer graphite alkene forms, outside at the graphene film 2 of upper and lower both sides is attached with PET polyester film 3, form the structure of PET polyester film 3/ double-layer graphite alkene 2/ liquid crystal 1/ double-layer graphite alkene 2/PET polyester film 3, wherein, the edge of upper and lower graphene film 2 is respectively equipped with two electrode deriving structures 4, be connected with external drive power supply.
Described electrode deriving structure 4 is for coating the conductive silver paste on graphene film, and thickness is 10 microns;
Described electrode deriving structure staggers up and down.
embodiment 2:
A kind of intelligent light modulation film using Graphene as transparency conductive electrode, with reference to Fig. 3, with the wide 2cm of graphene film 2(of upper and lower both sides, long 10cm) as conductive electrode, in the middle of liquid crystal mixed material 1 is sandwiched in, described graphene film is that double-layer graphite alkene forms, outside at the graphene film 2 of upper and lower both sides is attached with PET polyester film 3, the outside of PET polyester film 3 is attached with clear glass 5, form the structure of clear glass 5/PET polyester film 3/ double-layer graphite alkene 2/ liquid crystal 1/ double-layer graphite alkene 2/PET polyester film 3/ clear glass 5, wherein, the edge of upper and lower graphene film 2 is respectively equipped with two electrode deriving structures 4, be connected with external drive power supply.
Described electrode deriving structure 4 is for coating the conductive silver paste on graphene film, and thickness is 10 microns;
Described electrode deriving structure staggers up and down.
embodiment 3:
The preparation method of the intelligent light modulation film using Graphene as transparency conductive electrode, comprises the steps:
The first step, described Graphene is grown on Copper Foil by chemical gaseous phase depositing process;
Second step, etches away copper by chemical etching method, then Graphene is transferred on different matrixes, such as glass or PET polyester film.Shift Graphene by continuation, can increase the number of plies of Graphene, thereby increase the electric conductivity of graphene conductive layer, regulate its transmitance;
The 3rd step, by coating method, lays liquid crystal mixed material on the Graphene transparency conducting layer matrix obtaining at second step.Because the thickness of graphene conductive layer is in 0.3-3 nanometer, expose conductive layer according to classic method by peeling off matrix material, the method that is directly connected external drive power supply by conductive layer is inapplicable.Therefore, in coating of liquid crystalline composite material, on Graphene transparency conducting layer, reserve the region (such as 1 centimetre wide, width size is according to actual conditions) of certain width, only at all the other homogeneous area coating of liquid crystalline composite materials;
The 4th step, on the Graphene transparency conducting layer matrix that scribbles liquid crystal mixed material obtaining in the 3rd step (for aspect for the purpose of, be called " lower floor " matrix), add the Graphene transparency conducting layer matrix (being called " upper strata " matrix) that last layer is obtained by second step, form a kind of liquid crystal mixed material in centre, transparency conducting layer is in " sandwich " structure of both sides.Notice that the electrode of " upper strata " matrix, in the time covering " lower floor " matrix, also needs the region of leaving certain width not cover liquid crystal mixed material, as shown in Figure 1 or 2.
The 5th step, the structure that the 4th step obtains is shaped to light modulation film afterwards through pressing and curing (ultra-violet curing or heat curing);
The 6th step, in the part not covered by liquid crystal material of " lower floor " matrix, according to actual conditions, selection portion subregion, coating or point cover the conductive silver paste of one deck 10 micron thickness, conductive silver paste can not contact with the Graphene of " upper strata " matrix, and cut in the region that all the other are not scribbled to conductive silver paste (or metal).This conductive silver paste of stating (or metal) is connected as drawing with external drive power supply.Electrode is drawn and can according to actual needs, be done according to the method described above one or several, has made 2 as shown in Figure 2 and draw on the Graphene electrodes layer of " lower floor " matrix.
The 7th step, on " upper strata " matrix, the process of describing according to above-mentioned the 6th step is carried out repetition, it should be noted that will stagger with conductive silver paste (or metal) region of " lower floor " in the region of coating conductive silver paste (or metal), thereby avoids contact short circuit.This states conductive silver paste (or metal) and is connected as drawing with external drive power supply.Corresponding " lower floor " matrix is made one or more and is drawn on the Graphene electrodes layer of " upper strata " matrix.
embodiment 4:
The preparation method of the intelligent light modulation film using Graphene as transparency conductive electrode, comprises the steps:
The first step, described Graphene is grown on Copper Foil by chemical gaseous phase depositing process;
Second step, etches away copper by chemical etching method, then Graphene is transferred on different matrixes, such as glass or PET polyester film.Shift Graphene by continuation, can increase the number of plies of Graphene, thereby increase the electric conductivity of graphene conductive layer, regulate its transmitance;
The 3rd step, by coating method, lays liquid crystal mixed material on the Graphene transparency conducting layer matrix obtaining at second step.Because the thickness of graphene conductive layer is in 0.3-3 nanometer, expose conductive layer according to classic method by peeling off matrix material, the method that is directly connected external drive power supply by conductive layer is inapplicable.Therefore, in coating of liquid crystalline composite material, on Graphene transparency conducting layer, reserve the region (such as 1 centimetre wide, width size is according to actual conditions) of certain width, only at all the other homogeneous area coating of liquid crystalline composite materials;
The 4th step, on the Graphene transparency conducting layer matrix that scribbles liquid crystal mixed material obtaining in the 3rd step (for aspect for the purpose of, be called " lower floor " matrix), add the Graphene transparency conducting layer matrix (being called " upper strata " matrix) that last layer is obtained by second step, form a kind of liquid crystal mixed material in centre, transparency conducting layer is in " sandwich " structure of both sides.Notice that the electrode of " upper strata " matrix, in the time covering " lower floor " matrix, also needs the region of leaving certain width not cover liquid crystal mixed material, as shown in Figure 1 or 2.
The 5th step, the structure that the 4th step obtains is shaped to light modulation film afterwards through pressing and curing (ultra-violet curing or heat curing);
The 6th step, in the part not covered by liquid crystal material of " lower floor " matrix, according to actual conditions, selection portion subregion, directly be stained with 10 microns of above metal (for example copper of one deck with conducting resinl, but be not limited to copper), person's metal can not contact with the Graphene of " upper strata " matrix, and cut in the region that all the other are not scribbled to conductive silver paste (or metal).This conductive silver paste of stating (or metal) is connected as drawing with external drive power supply.Electrode is drawn and can according to actual needs, be done according to the method described above one or several, has made 2 as shown in Figure 2 and draw on the Graphene electrodes layer of " lower floor " matrix.
The 7th step, on " upper strata " matrix, the process of describing according to above-mentioned the 6th step is carried out repetition, it should be noted that will stagger with conductive silver paste (or metal) region of " lower floor " in the region of coating conductive silver paste (or metal), thereby avoids contact short circuit.This states conductive silver paste (or metal) and is connected as drawing with external drive power supply.Corresponding " lower floor " matrix is made one or more and is drawn on the Graphene electrodes layer of " upper strata " matrix.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. the intelligent light modulation film using Graphene as transparency conductive electrode, it is characterized in that: using the graphene film of upper and lower both sides as conductive electrode, in the middle of liquid crystal mixed material is sandwiched in, outside at the graphene film of upper and lower both sides is attached with transparent base, form the structure of transparent base/Graphene/liquid crystal/Graphene/transparent base, wherein, the edge of upper and lower graphene film is respectively equipped with one or more electrode deriving structures, is connected with external drive power supply.
2. the intelligent light modulation film using Graphene as transparency conductive electrode according to claim 1, is characterized in that: described electrode deriving structure is the metal of coating the conductive silver paste on graphene film or fitting tightly with graphene film.
3. the intelligent light modulation film using Graphene as transparency conductive electrode according to claim 2, is characterized in that: the thickness of described conductive silver paste is 100 nanometer ~ 200 micron.
4. the intelligent light modulation film using Graphene as transparency conductive electrode according to claim 2, is characterized in that: described metal is copper, and thickness is 10 ~ 200 microns.
5. the intelligent light modulation film using Graphene as transparency conductive electrode according to claim 1, it is characterized in that: described upper/lower electrode deriving structure is positioned at same one side of intelligent light modulation film, or be positioned at as required both sides, in the time that described upper/lower electrode deriving structure is positioned at same one side of intelligent light modulation film, upper/lower electrode deriving structure staggers up and down.
6. according to the intelligent light modulation film using Graphene as transparency conductive electrode described in claim 1 to 5 any one, it is characterized in that: described graphene film is one or more layers Graphene formation.
7. according to the intelligent light modulation film using Graphene as transparency conductive electrode described in claim 1 to 5 any one, it is characterized in that: described transparent base is clear glass, PET polyester film or is the composite structure that clear glass is adhered in PET polyester film outside.
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| CN201420014226.2U CN203673191U (en) | 2014-01-10 | 2014-01-10 | Intelligent dimming film with grapheme as transparent conductive electrode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880844A (en) * | 2015-05-22 | 2015-09-02 | 重庆捷尔士显示技术有限公司 | Novel liquid crystal display and manufacturing method |
| CN105810303A (en) * | 2014-12-30 | 2016-07-27 | 北京生美鸿业科技有限公司 | Graphene/ inorganic matter composite transparent conductive film-based light adjusting film |
| CN106313794A (en) * | 2016-10-13 | 2017-01-11 | 衡山县佳诚新材料有限公司 | Composite heat insulation dimming glass and preparation method thereof |
-
2014
- 2014-01-10 CN CN201420014226.2U patent/CN203673191U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810303A (en) * | 2014-12-30 | 2016-07-27 | 北京生美鸿业科技有限公司 | Graphene/ inorganic matter composite transparent conductive film-based light adjusting film |
| CN104880844A (en) * | 2015-05-22 | 2015-09-02 | 重庆捷尔士显示技术有限公司 | Novel liquid crystal display and manufacturing method |
| CN106313794A (en) * | 2016-10-13 | 2017-01-11 | 衡山县佳诚新材料有限公司 | Composite heat insulation dimming glass and preparation method thereof |
| CN106313794B (en) * | 2016-10-13 | 2023-09-19 | 衡山县佳诚新材料有限公司 | Composite heat-insulating dimming glass and preparation method thereof |
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Effective date of registration: 20190311 Address after: No. 518-5 Zhonghui Road, Standard Factory Building of Chang'an Industrial Park, Huishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee after: WUXI SIXTH ELEMENT ELECTRONIC FILM TECHNOLOGY Co.,Ltd. Address before: Room A2005, Tsinghua Innovation Building, No. 1 Zhihui Road, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: WUXI GRAPHENE FILM Co.,Ltd. |
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Address after: 213100 floor 1, building 4, No. 6, Xiangyun Road, West Taihu science and Technology Industrial Park, Changzhou City, Jiangsu Province Patentee after: Changzhou sixth element Semiconductor Co.,Ltd. Address before: No. 518-5 Zhonghui Road, Standard Factory Building of Chang'an Industrial Park, Huishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee before: WUXI SIXTH ELEMENT ELECTRONIC FILM TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20140625 |