CN107123467B - A kind of flexible conductive film and its application - Google Patents
A kind of flexible conductive film and its application Download PDFInfo
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- CN107123467B CN107123467B CN201710287356.1A CN201710287356A CN107123467B CN 107123467 B CN107123467 B CN 107123467B CN 201710287356 A CN201710287356 A CN 201710287356A CN 107123467 B CN107123467 B CN 107123467B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
Abstract
The present invention provides a kind of flexible conductive film and applications, it is described to lead flexible electrolemma it includes substrate layer, refractive index matching layers and conductive layers, the substrate layer has the first optical surface and the second optical surface, the refractive index matching layers are that ranges of indices of refraction is 1.4-1.52, and the thickness range of the refractive index matching layers (121) is 1.0-2.0 μm.The shadow effect that disappears of present invention collection glass baseplate, transmitance and the flexibility of conventional polymer substrate are integrated, meet the demand of market flexible display screen, selecting reasonable structure sheaf, reasonable thickness and suitable refraction materials to carry out matching, to realize traditional organic substrate shadow effect that disappears poor, the technical problem of transmitance difference, while being applied in touch screen field.
Description
Technical field:
The present invention relates to optical films, and in particular to flexible conductive film and its application.
Background technique:
ITO conductive film be mainly used in field of mobile communication touch screen production, thin-film solar cells transparent electrode,
The fields such as electrode material, the thin film switch of electrochromic device, logical produce produce to obtain using the method for coating plus magnetron sputtering.
Touch-screen has more and more applications in mobile phone and tablet computer etc., and touch screen is as a kind of novel defeated
Equipment is all the fashion and universal out, therefore also more comes also greatly as the essential transparent conductive film demand of touch screen.ITO
Electropane, i.e. tin indium oxide (Indium-TinOxide) transparent conducting film glass, multi-pass cross the production of ITO electropane
Line, using plane magnetic control technology, sputters the plating of tin indium oxide conductive film in the power house environment of high purification on ultra-thin glass
Layer and the high-tech product obtained through the high temperature anneal.Product be widely used for liquid crystal display (LCD), solar battery,
Microelectronics ITO electropane, photoelectron and various optical fields.
It is big as the ito film occupied space of organic substrate using glass；It is not easy to transport；It is frangible；Although having the shadow effect that disappears good, thoroughly
It crosses the advantages that rate is high but cannot be bent, be not able to satisfy the requirement of market flexible display screen.
Although the ito film of traditional PET and COC organic substrate can be bent, shrinking percentage is big；Water absorption rate is big；Disappear shadow effect
It is not so good as glass with transmitance effect.
Summary of the invention:
The purpose of the present invention is have devised disappear shadow effect, transmitance and the conventional polymer of conductive film collection glass baseplate
The flexibility of organic substrate is integrated, and meets the demand of market flexible display screen, selects reasonable structure sheaf, reasonable thickness
And suitable refraction materials carry out matching poor, the technical problem of transmitance difference that realizes traditional organic substrate shadow effect that disappears.
To achieve the above object, the technical solution of the present invention is as follows:
A kind of flexible conductive film, it includes COP substrate layer, refractive index matching layers and conductive layer, the substrate layer has
First optical surface and the second optical surface, the ranges of indices of refraction of the refractive index matching layers are 1.4-1.52, the index matching
The thickness range of layer (121) is 1.0-2.0 μm.
Further, the refractive index matching layers include low-index layer and the first hardened layer, which is characterized in that described low
The ranges of indices of refraction of index layer is 1.4-1.49, and the ranges of indices of refraction of first hardened layer is 1.50-1.52.
Further, the main component of first hardened layer includes polyester acrylate 15-20%, propylene glycol first
It is confused 30%-50%, 3-Methoxy-3-methyl-1-butanol 5%-10%, initiator, 0.1%-1%, auxiliary agent 1%-5%, the group
The purpose divided is the hardening bath for synthesizing 1.50-1.52 refractive index, while meeting the adhesive force of hardened layer and substrate；And hardened layer
The requirement of 5B can be reached according to " ASTM standard " with the adhesive force of low-index layer.Further, the first hardened layer includes poly-
Ester acrylate, the polyester acrylate are selected from epoxy-modified aliphatic polyester acrylate.
Further, the acrylate is selected from polyester acrylate, and the polyester acrylate is selected from epoxy-modified
Aliphatic polyester acrylate.
Further, it is pentaerythrite, (first that the aliphatic polyester acrylate, which is selected from (methyl) acrylate monomer,
Base) acrylate, (methyl) acrylic acid methylol propyl ester, (methyl) glycerol acrylate, (methyl) acrylic acid (2- ethoxy)
Isocyanates or (methyl) acrylic acid (2- ethoxy) isocyanuric acid ester one or more and succinic acid, 1,2,3- third carboxylic acid,
Glutaric acid, lactones orReaction is made, wherein R2 is the support group of C2~C10.
Further, the photoinitiator be 1- hydroxyl phenylcyclohexyl ketone, 2,2- dimethoxy -2- phenyl acetophenone,
2,2- dimethoxy -2- phenyl acetophenone, xanthone, Fluorenone, anthraquinone, triphenylamine, carbazole, 3- methyl acetophenone, 4- chlorodiphenyl
Ketone, 4,4- dimethoxy-benzophenone, 4,4- diaminobenzophenone, Michler's keton, benzoin ethyl ether, benzyl dimethyl ketal contracting
Alcohol, 1- (4- isopropyl phenyl) -2- hydroxy-2-methyl propyl- 1- ketone, 2- hydroxy-2-methyl -1- phenyl propyl- 1- ketone, thioxanthones,
Diethyl thioxanthone, 2-isopropylthioxanthone, 2-chlorothioxanthone, 2,4,6- trimethylbenzoyl diphenyl phosphine oxide, it is double-(2,
6- dimethoxybenzoyl) one or more of -2,4,4- trimethylpentylphosphine oxide mixture.
Further, on the first optical surface of the substrate layer successively fold equipped with the first hardened layer, low-index layer and
Conductive layer.
Further, it is successively folded on the first optical surface of the substrate layer and is equipped with hardened layer, the first hardened layer, low-refraction
Layer and conductive layer.
Further, the second hardened layer is provided on the second optical surface of the substrate layer.
Further, on the second optical surface of the substrate layer successively fold equipped with the first hardened layer, low-index layer and
Conductive layer.
Further, the substrate layer with a thickness of 30-180 μm.
Further, the thickness range of the low-index layer is 20-50nm.
Further, the thickness range of first hardened layer is 1.0-1.5 μm.
Further, the thickness range of the conductive layer is 20-30nm, and the ranges of indices of refraction of the conductive layer is 2.0-
2.5。
Further, the conductive layer is ITO.
A kind of touch screen includes flexible conductive film described above.
The utility model has the advantages that
The present invention is the shadow effect that disappears, transmitance and the conventional polymer organic group for having devised conductive film collection glass baseplate
The flexibility of material is integrated, and meets the demand of market flexible display screen, selects reasonable structure sheaf, reasonable thickness and conjunction
Suitable refraction materials carry out matching poor, the technical problem of transmitance difference that realizes traditional organic substrate shadow effect that disappears.
Detailed description of the invention:
Below with reference to structural schematic diagram and embodiment, the present invention is further described.
Fig. 1 shows a kind of compliant conductive membrane structure diagram that a kind of typical embodiment 1 of the invention provides.
Fig. 2 shows a kind of compliant conductive membrane structure diagrams that a kind of typical embodiment 2 of the invention provides.
Specific embodiment:
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Interlayer structure in the application, the thickness of each layer and the matching relationship of refractive index make the application with higher
Comprehensive performance.Above structure thickness degree, which carries out reasonable refractive index collocation, ensure that total overcomes the skill for the shadow effect difference that disappears
It ensure that high transmittance while art problem.
Embodiment 1
Illustrate a kind of flexible conductive film 100 shown in FIG. 1, in the first optical surface of the COP substrate 10 with a thickness of 50 μm
Sided corona treatment is first carried out with the second optical surface, passes through the first optics table of the COP substrate 10 that coating process is crossed in sided corona treatment
Face forms the first hardened layer 11 with a thickness of 2 μm after being coated with the glue curing that refractive index is 1.50.Second light of the substrate 10
Learning surface coating refractive index is 1.50 hardened glues, and the second hardened layer 15 with a thickness of 2 μm is formed after solidification, hard described first
Change the sputtering of 11 surface of layer with a thickness of 30nm, the silica that refractive index is 1.40 forms low-refraction matching layer 12.In the folding
It penetrates 12 surface of rate matching layer to sputter with a thickness of 25nm, the ITO layer 13 that refractive index is 2.3.Flexible conductive film 1, test result is made
The whole mist degree of film is 0.25%, not demoulding (hundred lattice: 5B) of boiling water bath 30min ITO layer 13；Acid-proof alkaline is excellent: 15g/L
Not demoulding (hundred lattice: 5B), 1mol/L HCl/5min ITO layer not demoulding (hundred lattice: 5B) of 55 DEG C/10min of NaOH ITO layer 13,
Resistance is up to 150 Ω, reflectivity < 2%, the characteristic of transmitance > 95%, the shadow effect that disappears b* < 1.5.
Embodiment 2
Illustrate a kind of flexible conductive film 100 shown in FIG. 1, in the first optical surface of the COP substrate 10 with a thickness of 50 μm
Sided corona treatment is first carried out with the second optical surface, passes through the first optics table of the COP substrate 10 that coating process is crossed in sided corona treatment
Face forms the first hardened layer 11 with a thickness of 2 μm after being coated with the glue curing that refractive index is 1.52.Second light of the substrate 10
Learning surface coating refractive index is 1.52 hardened glues, and the second hardened layer 15 with a thickness of 2 μm is formed after solidification, hard described first
Change the sputtering of 11 surface of layer with a thickness of 20nm, the silica that refractive index is 1.40 forms low-refraction matching layer 12.In the folding
It penetrates 12 surface of rate matching layer to sputter with a thickness of 25nm, the ITO layer 13 that refractive index is 2.3.Flexible conductive film 2, test result is made
The whole mist degree of film is 0.25%, not demoulding (hundred lattice: 5B) of boiling water bath 30min ITO layer 13；Acid-proof alkaline is excellent: 15g/L
Not demoulding (hundred lattice: 5B), 1mol/L HCl/5min ITO layer not demoulding (hundred lattice: 5B) of 55 DEG C/10min of NaOH ITO layer 13,
Resistance is up to 150 Ω, reflectivity < 1%, the characteristic of transmitance > 97%, the shadow effect that disappears b* < 1.2.
Embodiment 3
Illustrate a kind of flexible conductive film 100 shown in FIG. 1, in the first optical surface of the COP substrate 10 with a thickness of 50 μm
Sided corona treatment is first carried out with the second optical surface, passes through the first optics table of the COP substrate that coating process is crossed in sided corona treatment
Face forms the first hardened layer 11 with a thickness of 2 μm after being coated with the glue curing that refractive index is 1.50, the second of the substrate 10
It is 1.52 hardened glues that optical surface, which is coated with refractive index, the second hardened layer 15 with a thickness of 2 μm is formed after solidification, described first
For the sputtering of 11 surface of hardened layer with a thickness of 50nm, the silica that refractive index is 1.49 forms low-index layer 12.In low-refraction
The sputtering of 12 surface of layer is with a thickness of 25nm, the ITO layer 13 that refractive index is 2.3.Flexible conductive film 3, the entirety of test result film is made
Mist degree is 0.25%, not demoulding (hundred lattice: 5B) of boiling water bath 30min ITO layer 13；Acid-proof alkaline is excellent: 15g/L NaOH 55
DEG C/not demoulding (hundred lattice: 5B), 1mol/L HCl/5min ITO layer not demoulding (hundred lattice: 5B) of 10min ITO layer 13, resistance reaches
150 Ω, reflectivity 6%, the characteristic of transmitance > 91%, the shadow effect that disappears b* < 2.5.
Embodiment 4
Illustrate a kind of flexible conductive film 100 shown in FIG. 1, in the first optical surface of the COP substrate 10 with a thickness of 50 μm
Sided corona treatment is first carried out with the second optical surface, passes through the first optics table of the COP substrate that coating process is crossed in sided corona treatment
Face forms the first hardened layer 11 with a thickness of 2 μm after being coated with the glue curing that refractive index is 1.50, the second of the substrate 10
It is 1.50 hardened glues that optical surface, which is coated with refractive index, the second hardened layer 15 with a thickness of 2 μm is formed after solidification, described first
For the sputtering of 11 surface of hardened layer with a thickness of 50nm, the silica that refractive index is 1.49 forms low-index layer 12.In low-refraction
The sputtering of 12 surface of layer is with a thickness of 25nm, the ITO layer 13 that refractive index is 2.3.Flexible conductive film 4, the entirety of test result film is made
Mist degree is 0.25%, not demoulding (hundred lattice: 5B) of boiling water bath 30min ITO layer 13；Acid-proof alkaline is excellent: 15g/L NaOH 55
DEG C/not demoulding (hundred lattice: 5B), 1mol/L HCl/5min ITO layer not demoulding (hundred lattice: 5B) of 10min ITO layer 13, resistance reaches
150 Ω, reflectivity 6%, the characteristic of transmitance > 91%, the shadow effect that disappears b* < 4.
Embodiment 5
Illustrate a kind of flexible conductive film 100 shown in Fig. 2, in the first optical surface of the COP substrate 10 with a thickness of 50 μm
Sided corona treatment is first carried out with the second optical surface, passes through the first optics table of the COP substrate 10 that coating process is crossed in sided corona treatment
Face forms the first hardened layer 11 with a thickness of 2 μm after being coated with the glue curing that refractive index is 1.52, in first hardened layer 11
With a thickness of 30nm, the silica that refractive index is 1.40 forms low-index layer 12 for surface sputtering.In the low-index layer 12
Surface sputtering is with a thickness of 25nm, the ITO layer 13 that refractive index is 2.3, is the first optics table on the second optical surface of COP substrate
Face mirror image, preparation method and structure are consistent with the first optical surface.Flexible conductive film 5 is made, test result film
Whole mist degree is 0.25%, not demoulding (hundred lattice: 5B) of boiling water bath 30min ITO layer 13；Acid-proof alkaline is excellent: 15g/L NaOH
Not demoulding (hundred lattice: 5B), 1mol/L HCl/5min ITO layer not demoulding (hundred lattice: 5B) of 55 DEG C/10min ITO layer 13, resistance reaches
150 Ω, reflectivity < 2%, the characteristic of transmitance > 95%, the shadow effect that disappears b* < 1.5.
Embodiment 6
Illustrate a kind of flexible conductive film 100 shown in Fig. 2, in the first optical surface of the COP substrate 10 with a thickness of 50 μm
Sided corona treatment is first carried out with the second optical surface, passes through the first optics table of the COP substrate 10 that coating process is crossed in sided corona treatment
Face forms the first hardened layer 11 with a thickness of 2 μm after being coated with the glue curing that refractive index is 1.50, in first hardened layer 11
With a thickness of 30nm, the silica that refractive index is 1.49 forms low-index layer 12 for surface sputtering.On 12 surface of low-index layer
Sputtering is with a thickness of 25nm, the ITO layer 13 that refractive index is 2.3.It is the first optics table on the second optical surface of the substrate 10
Face mirror image, preparation method and structure are consistent with the first optical surface.Flexible conductive film 6 is made, test result film
Whole mist degree is 0.25%, not demoulding (hundred lattice: 5B) of boiling water bath 30min ITO layer 13；Acid-proof alkaline is excellent: 15g/L NaOH
Not demoulding (hundred lattice: 5B), 1mol/L HCl/5min ITO layer not demoulding (hundred lattice: 5B) of 55 DEG C/10min ITO layer 13, resistance reaches
150 Ω, reflectivity < 8%, the characteristic of transmitance > 90%, the shadow effect that disappears b* < 2.5.
By the refractive index matching layers and rationally for selecting Rational Thickness and reasonable refractive index known to embodiment 1,2,3,4,5 and 6
Conductive layer is sputtered again after the substrate layer collocation of thickness, and the conductive film reflectivity of acquisition is low, transmitance is high, thereby is achieved perfect
Disappear shadow effect, and selects substrate to be flexible, therefore meet the demand of flexible screen.
The foregoing is merely the preferred embodiment of invention, be not intended to limit the present invention, it is all the spirit and principles in the present invention it
Modifications, equivalent substitutions and improvements made by interior etc., should all be included in the protection scope of the present invention.Attempt accordingly to the present invention
Make limitation in any form, therefore all have any modification or change for making the related present invention under identical spirit,
The scope that the invention is intended to protect should be all included in.
Claims (12)
1. a kind of flexible conductive film (100), it includes COP substrate layer (10), refractive index matching layers (121) and conductive layers
(13), the substrate layer (10) has the first optical surface and the second optical surface, which is characterized in that the refractive index matching layers
It (121) be ranges of indices of refraction is 1.4-1.52, the thickness range of the refractive index matching layers (121) is 1.0-2.0 μm, the folding
Penetrating rate matching layer (121) includes low-index layer (12) and the first hardened layer (11), the refractive index of the low-index layer (12)
Range is 1.4-1.49, and the ranges of indices of refraction of first hardened layer (11) is 1.50-1.52, the thickness of the substrate layer (10)
It is 30-180 μm.
2. flexible conductive film (100) according to claim 1, which is characterized in that the main ingredient of first hardened layer
Comprising polyester acrylate 15-20%, propylene glycol first is confused 30%-50%, and 3-Methoxy-3-methyl-1-butanol 5%-10% draws
Send out agent 0.1%-1%, levelling agent 1%-5%.
3. flexible conductive film (100) according to claim 1, which is characterized in that the first hardened layer includes polyester acrylic
Ester, the polyester acrylate are selected from epoxy-modified aliphatic polyester acrylate.
4. flexible conductive film (100) according to claim 3, which is characterized in that the polyester acrylate is selected from (first
Base) acrylate monomer be pentaerythrite, (methyl) acrylate, (methyl) acrylic acid methylol propyl ester, (methyl) acrylic acid
Glyceride, (methyl) acrylic acid (2- ethoxy) isocyanates or (methyl) acrylic acid (2- ethoxy) isocyanuric acid ester it is a kind of or
Person is a variety of and succinic acid, 1,2,3- third carboxylic acid, glutaric acid, lactones orOne or more of reaction be made,
In, R2 is the support group of C2~C10.
5. flexible conductive film (100) according to claim 2, which is characterized in that the initiator is 1- hydroxyl cyclohexyl
Benzophenone, 2,2- dimethoxy -2- phenyl acetophenone, 2,2- dimethoxy -2- phenyl acetophenone, xanthone, Fluorenone, anthraquinone,
Triphenylamine, carbazole, 3- methyl acetophenone, 4- chlorobenzophenone, 4,4- dimethoxy-benzophenone, 4,4- diamino hexichol first
Ketone, Michler's keton, benzoin ethyl ether, benzyl dimethyl ketal, 1- (4- isopropyl phenyl) -2- hydroxy-2-methyl propyl- 1- ketone,
2- hydroxy-2-methyl -1- phenyl propyl- 1- ketone, thioxanthones, diethyl thioxanthone, 2-isopropylthioxanthone, 2-chlorothioxanthone, 2,
In 4,6- trimethylbenzoyl diphenyl phosphine oxide, double-(2,6- dimethoxybenzoyl) -2,4,4- trimethylpentylphosphine oxide
One or more kinds of mixtures.
6. flexible conductive film (100) according to claim 1, which is characterized in that the first optics of the substrate layer (10)
It successively folds on face equipped with the first hardened layer (11), low-index layer (12) and conductive layer (13).
7. flexible conductive film (100) according to claim 1, which is characterized in that the second optics of the substrate layer (10)
The second hardened layer (15) are provided on face.
8. flexible conductive film (100) according to claim 1, which is characterized in that the second optics of the substrate layer (10)
It successively folds on face equipped with the first hardened layer (11), low-index layer (12) and conductive layer (13).
9. flexible conductive film (100) according to claim 1, which is characterized in that flexibility according to claim 1 is led
Electrolemma (100), which is characterized in that the thickness range of first hardened layer (11) is 1.0-1.5 μm.
10. flexible conductive film (100) according to claim 1, which is characterized in that the thickness range of the conductive layer (13)
For 20-30nm, the ranges of indices of refraction of the conductive layer (13) is 2.0-2.5.
11. flexible conductive film (100) according to claim 1, which is characterized in that the thickness of the low-index layer (12)
For 20-50nm.
12. a kind of touch screen, which is characterized in that include flexible conductive film described in any one of claim 1-11 claim
(100)。
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| CN201710287356.1A CN107123467B (en) | 2017-04-27 | 2017-04-27 | A kind of flexible conductive film and its application |
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| CN201710287356.1A CN107123467B (en) | 2017-04-27 | 2017-04-27 | A kind of flexible conductive film and its application |
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| CN107123467A CN107123467A (en) | 2017-09-01 |
| CN107123467B true CN107123467B (en) | 2019-06-21 |
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| CN115390171B (en) * | 2022-08-17 | 2023-10-13 | 鹤山市嘉米基光电科技有限公司 | Variable-color high-reflection reflector and preparation method thereof |
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| KR20120125824A (en) * | 2011-05-09 | 2012-11-19 | 에이스하임 주식회사 | A ito transparent substrate comprising a continuous index matching layer and manufacturing process thereof |
| CN202632797U (en) * | 2012-05-21 | 2012-12-26 | 珠海兴业光电科技有限公司 | Flexible conductive film of capacitive touch screen |
| CN103531270A (en) * | 2012-07-04 | 2014-01-22 | 冠华科技股份有限公司 | Transparent conductive film and touch control panel provided therewith |
| CN104303240A (en) * | 2012-05-17 | 2015-01-21 | 株式会社钟化 | Substrate with transparent electrode, method for manufacturing same, and touch panel |
| CN205384882U (en) * | 2016-01-16 | 2016-07-13 | 汕头万顺包装材料股份有限公司 | Two -sided ITO conductive film |
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- 2017-04-27 CN CN201710287356.1A patent/CN107123467B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438822A (en) * | 2009-03-31 | 2012-05-02 | 帝人株式会社 | Transparent conductive laminate and transparent touch panel |
| KR20120125824A (en) * | 2011-05-09 | 2012-11-19 | 에이스하임 주식회사 | A ito transparent substrate comprising a continuous index matching layer and manufacturing process thereof |
| CN104303240A (en) * | 2012-05-17 | 2015-01-21 | 株式会社钟化 | Substrate with transparent electrode, method for manufacturing same, and touch panel |
| CN202632797U (en) * | 2012-05-21 | 2012-12-26 | 珠海兴业光电科技有限公司 | Flexible conductive film of capacitive touch screen |
| CN102779570A (en) * | 2012-06-25 | 2012-11-14 | 普发玻璃（深圳）有限公司 | Shadow-eliminating and anti-reflection electric conduction film coating layer |
| CN103531270A (en) * | 2012-07-04 | 2014-01-22 | 冠华科技股份有限公司 | Transparent conductive film and touch control panel provided therewith |
| CN205384882U (en) * | 2016-01-16 | 2016-07-13 | 汕头万顺包装材料股份有限公司 | Two -sided ITO conductive film |
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