CN110993150A - Transparent conductive film containing nano silver wire and preparation method thereof - Google Patents
Transparent conductive film containing nano silver wire and preparation method thereof Download PDFInfo
- Publication number
- CN110993150A CN110993150A CN201911170263.6A CN201911170263A CN110993150A CN 110993150 A CN110993150 A CN 110993150A CN 201911170263 A CN201911170263 A CN 201911170263A CN 110993150 A CN110993150 A CN 110993150A
- Authority
- CN
- China
- Prior art keywords
- nano
- layer
- transparent conductive
- conductive film
- silver wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electric Cables (AREA)
- Laminated Bodies (AREA)
- Non-Insulated Conductors (AREA)
Abstract
The invention relates to a transparent conductive film containing nano-silver wires and a preparation method thereof. The nano silver wire has high purity, no need of an outer layer surface protective agent and subsequent purification treatment in the preparation process, and in addition, the optical adhesive layer enables the nano silver wire layer and the insulating layer to be better fixed together, the insulating layer is wear-resistant and scratch-resistant, can play a good role in protecting the whole nano silver wire layer, is beneficial to prolonging the service life of the nano silver wire, and has good mechanical property and conductivity and excellent chemical stability.
Description
Technical Field
The invention relates to the technical field of conductive film preparation, in particular to a transparent conductive film containing nano silver wires and a preparation method thereof.
Background
The transparent conductive film is a material having both light transmittance and conductivity, and is mainly classified into a metal film system, an oxide film system, a polymer film system, a composite film system, and the like, wherein the oxide film is dominant, and the transparent conductive film is widely applied to the fields of touch screens, organic light emitting diodes, flat panel displays, solar cells, and the like. The conductive oxide film mainly made of indium tin oxide is widely applied in the current production. ITO has been used in opto-electronic devices as TCF for over fifty years and still has a share of the market of about 90% to date. However, ITO itself has disadvantages of high production cost and poor flexibility, and indium, a raw material required for producing ITO, is becoming scarce. With the continuous development of electronic devices, the requirements of various performances and comprehensive cost of the transparent conductive film in the industry are gradually increased, and the ITO is difficult to meet the increasing requirements of people on the flexible transparent conductive film in terms of cost and flexible transparent conductivity. Therefore, it is desirable to use a material suitable for a flexible transparent conductive film instead of ITO. In recent years, the development and utilization of nano silver wires have become hot spots in the field of photoelectric materials at home and abroad.
The nano silver wire has the characteristics of high transmittance, good conductivity and mechanical property and the like, and becomes an ideal material for preparing the flexible transparent conductive film. The transparent conductive film prepared by using the nano silver wire has the advantages of low cost, easy preparation, high transmittance, low square resistance, good bending property and the like, the production process technology is gradually mature, and the transparent conductive film is expected to replace the traditional ITO (indium tin oxide) in the preparation of the transparent conductive film. However, at present, the transparent conductive film of nano silver wire has strict requirements on its photoelectric properties and flexibility, and also needs to have strong weather resistance and aging resistance. The nano silver wire transparent conductive film is easy to generate electric corrosion and silver migration phenomena in the using process, so that the chemical stability and the service life of the nano silver wire transparent conductive film are influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a transparent conductive film containing nano silver wires and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: a transparent conductive film containing nano-silver wires comprises an anti-reflection protective layer, an insulating layer, an optical adhesive layer and a nano-silver wire layer which are sequentially stacked from top to bottom.
The refractive index of the anti-reflection protective layer is 1.30-1.80.
The material of the anti-reflection protective layer is MgF2、SiO2And cryolite.
The optical adhesive layer is an OCA optical adhesive layer.
The insulating layer is: one or more of thermosetting resin, thermoplastic resin and ultraviolet curing resin are used in combination.
The light transmittance of the insulating layer cannot be lower than 98%, and the haze should be lower than 0.6%.
The invention also provides a preparation method of the transparent conductive film containing the nano silver wire, which comprises the following steps:
a, preparing a nano silver wire:
preparing polyamic acid nano-fiber by adopting a polyamic acid solution with the solid content of 20 percent through an electrostatic spinning method, immersing the prepared polyamic acid nano-fiber into a silver salt solution for ion exchange to prepare polyamic acid/silver composite nano-fiber, and performing temperature rise heat treatment to generate aggregation of silver particles and degradation of polyamic acid so as to finally obtain nano-silver wires;
b, surface modification of the nano silver wire:
adding nano silver wires and a silane coupling agent into an organic solvent toluene at the temperature of 25-45 ℃ for 18h, cooling to room temperature, filtering, washing with an organic solvent benzene, drying to constant weight, and carrying out surface modification on the nano silver wires by using the silane coupling agent;
c, preparing a nano silver wire layer:
carrying out ultrasonic mixing on a nano silver wire aqueous solution and an ITO solution according to the weight ratio of 2-8:2-8 to form 100 parts by weight of mixed solution, adding 3 parts by weight of dispersing agent in the mixing process, adding 2-6 parts by weight of water-soluble polymer resin with the average molecular weight less than 10000, continuing ultrasonic treatment for 40 minutes, carrying out centrifugal separation, taking supernatant to prepare a composite conductive coating, and coating the composite conductive coating on the surface of a PET film with an activated surface to obtain a transparent conductive nano silver wire layer;
d, preparing a transparent conductive film:
coating an optical adhesive layer on the surface layer of the nano silver wire layer, coating a layer of resin on the optical adhesive layer, drying and curing the resin by adopting a heating or ultraviolet irradiation mode to form an insulating layer, coating an organic silicon pressure-sensitive adhesive on the surface of the insulating layer, and fixing an anti-reflection protective layer on the surface of the insulating layer to obtain the transparent conductive film.
The weight ratio of the nano silver wire to the silane coupling agent is 1: 1-1.4.
The invention has the beneficial effects that: the nano silver wire has high purity, no need of an outer layer surface protective agent and subsequent purification treatment in the preparation process, and in addition, the optical adhesive layer enables the nano silver wire layer and the insulating layer to be better fixed together, the insulating layer is wear-resistant and scratch-resistant, can play a good role in protecting the whole nano silver wire layer, is beneficial to prolonging the service life of the nano silver wire, and has good mechanical property and conductivity and excellent chemical stability.
Detailed Description
The invention will be further illustrated with reference to specific examples:
a transparent conductive film containing nano-silver wires comprises an anti-reflection protective layer, an insulating layer, an optical adhesive layer and a nano-silver wire layer which are sequentially stacked from top to bottom.
The refractive index of the anti-reflection protective layer is 1.30-1.80.
The material of the anti-reflection protective layer is MgF2、SiO2And cryolite.
The optical adhesive layer is an OCA optical adhesive layer.
The insulating layer is: one or more of thermosetting resin, thermoplastic resin and ultraviolet curing resin are used in combination.
The light transmittance of the insulating layer cannot be lower than 98%, and the haze should be lower than 0.6%, so as to ensure that the added insulating layer cannot have obvious influence on the conductivity (the insulating layer is required to be thin and uniform and has good adhesion), the light transmittance and the haze of the nano silver wire conductive film.
The invention also provides a preparation method of the transparent conductive film containing the nano silver wire, which comprises the following steps:
a, preparing a nano silver wire:
preparing polyamic acid nano-fiber by adopting a polyamic acid solution with the solid content of 20 percent through an electrostatic spinning method, immersing the prepared polyamic acid nano-fiber into a silver salt solution for ion exchange to prepare polyamic acid/silver composite nano-fiber, and performing temperature rise heat treatment to generate aggregation of silver particles and degradation of polyamic acid so as to finally obtain nano-silver wires;
b, surface modification of the nano silver wire:
adding nano silver wires and a silane coupling agent into an organic solvent toluene at the temperature of 25-45 ℃ for 18h, cooling to room temperature, filtering, washing with an organic solvent benzene, drying to constant weight, and carrying out surface modification on the nano silver wires by using the silane coupling agent;
c, preparing a nano silver wire layer:
carrying out ultrasonic mixing on a nano silver wire aqueous solution and an ITO solution according to the weight ratio of 2-8:2-8 to form 100 parts by weight of mixed solution, adding 3 parts by weight of dispersing agent in the mixing process, adding 2-6 parts by weight of water-soluble polymer resin with the average molecular weight less than 10000, continuing ultrasonic treatment for 40 minutes, carrying out centrifugal separation, taking supernatant to prepare a composite conductive coating, and coating the composite conductive coating on the surface of a PET film with an activated surface to obtain a transparent conductive nano silver wire layer;
d, preparing a transparent conductive film:
coating an optical adhesive layer on the surface layer of the nano silver wire layer, coating a layer of resin on the optical adhesive layer, drying and curing the resin by adopting a heating or ultraviolet irradiation mode to form an insulating layer, coating an organic silicon pressure-sensitive adhesive on the surface of the insulating layer, and fixing an anti-reflection protective layer on the surface of the insulating layer to obtain the transparent conductive film.
The weight ratio of the nano silver wire to the silane coupling agent is 1: 1-1.4.
Example 1:
a transparent conductive film containing nano-silver wires comprises an anti-reflection protective layer, an insulating layer, an optical adhesive layer and a nano-silver wire layer which are sequentially stacked from top to bottom.
The refractive index of the anti-reflection protective layer was 1.30.
The material of the anti-reflection protective layer is MgF2。
The optical adhesive layer is an OCA optical adhesive layer.
The insulating layer is: one or more of thermosetting resin, thermoplastic resin and ultraviolet curing resin are used in combination.
The light transmittance of the insulating layer cannot be lower than 98%, and the haze should be lower than 0.6%, so as to ensure that the added insulating layer cannot have obvious influence on the conductivity (the insulating layer is required to be thin and uniform and has good adhesion), the light transmittance and the haze of the nano silver wire conductive film.
The invention also provides a preparation method of the transparent conductive film containing the nano silver wire, which comprises the following steps:
a, preparing a nano silver wire:
preparing polyamic acid nano-fiber by adopting a polyamic acid solution with the solid content of 20 percent through an electrostatic spinning method, immersing the prepared polyamic acid nano-fiber into a silver salt solution for ion exchange to prepare polyamic acid/silver composite nano-fiber, and performing temperature rise heat treatment to generate aggregation of silver particles and degradation of polyamic acid so as to finally obtain nano-silver wires;
b, surface modification of the nano silver wire:
adding nano silver wires and a silane coupling agent into an organic solvent toluene at the temperature of 25 ℃ for 18h, cooling to room temperature, filtering, washing with an organic solvent benzene, drying to constant weight, and carrying out surface modification on the nano silver wires by using the silane coupling agent;
c, preparing a nano silver wire layer:
ultrasonically mixing a nano silver wire aqueous solution and an ITO solution according to the weight ratio of 2:8 to form 100 parts by weight of mixed solution, adding 3 parts by weight of dispersing agent in the mixing process, adding 2 parts by weight of water-soluble polymer resin with the average molecular weight less than 10000, continuing to perform ultrasonic treatment for 40 minutes, performing centrifugal separation, taking supernatant to prepare composite conductive coating, and coating the composite conductive coating on the surface of a surface-activated PET (polyethylene terephthalate) film to obtain a transparent conductive nano silver wire layer;
d, preparing a transparent conductive film:
coating an optical adhesive layer on the surface layer of the nano silver wire layer, coating a layer of resin on the optical adhesive layer, drying and curing the resin by adopting a heating or ultraviolet irradiation mode to form an insulating layer, coating an organic silicon pressure-sensitive adhesive on the surface of the insulating layer, and fixing an anti-reflection protective layer on the surface of the insulating layer to obtain the transparent conductive film.
The weight ratio of the nano silver wire to the silane coupling agent is 1:1.
Example 2:
a transparent conductive film containing nano-silver wires comprises an anti-reflection protective layer, an insulating layer, an optical adhesive layer and a nano-silver wire layer which are sequentially stacked from top to bottom.
The refractive index of the protective antireflective layer was 1.80.
The material of the anti-reflection protective layer is cryolite.
The optical adhesive layer is an OCA optical adhesive layer.
The insulating layer is: one or more of thermosetting resin, thermoplastic resin and ultraviolet curing resin are used in combination.
The light transmittance of the insulating layer cannot be lower than 98%, and the haze should be lower than 0.6%, so as to ensure that the added insulating layer cannot have obvious influence on the conductivity (the insulating layer is required to be thin and uniform and has good adhesion), the light transmittance and the haze of the nano silver wire conductive film.
The invention also provides a preparation method of the transparent conductive film containing the nano silver wire, which comprises the following steps:
a, preparing a nano silver wire:
preparing polyamic acid nano-fiber by adopting a polyamic acid solution with the solid content of 20 percent through an electrostatic spinning method, immersing the prepared polyamic acid nano-fiber into a silver salt solution for ion exchange to prepare polyamic acid/silver composite nano-fiber, and performing temperature rise heat treatment to generate aggregation of silver particles and degradation of polyamic acid so as to finally obtain nano-silver wires;
b, surface modification of the nano silver wire:
adding nano silver wires and a silane coupling agent into an organic solvent toluene at the temperature of 45 ℃ for 18h, cooling to room temperature, filtering, washing with an organic solvent benzene, drying to constant weight, and carrying out surface modification on the nano silver wires by using the silane coupling agent;
c, preparing a nano silver wire layer:
carrying out ultrasonic mixing on a nano silver wire aqueous solution and an ITO solution according to the weight ratio of 8:2 to form 100 parts by weight of mixed solution, adding 3 parts by weight of dispersing agent in the mixing process, adding 6 parts by weight of water-soluble polymer resin with the average molecular weight of less than 10000, continuing ultrasonic treatment for 40 minutes, carrying out centrifugal separation, taking supernatant to prepare a composite conductive coating, and coating the composite conductive coating on the surface of a surface activated PET film to obtain a transparent conductive nano silver wire layer;
d, preparing a transparent conductive film:
coating an optical adhesive layer on the surface layer of the nano silver wire layer, coating a layer of resin on the optical adhesive layer, drying and curing the resin by adopting a heating or ultraviolet irradiation mode to form an insulating layer, coating an organic silicon pressure-sensitive adhesive on the surface of the insulating layer, and fixing an anti-reflection protective layer on the surface of the insulating layer to obtain the transparent conductive film.
The weight ratio of the nano silver wire to the silane coupling agent is 1: 1.4.
Example 3:
a transparent conductive film containing nano-silver wires comprises an anti-reflection protective layer, an insulating layer, an optical adhesive layer and a nano-silver wire layer which are sequentially stacked from top to bottom.
The refractive index of the anti-reflection protective layer was 1.50.
The material of the anti-reflection protective layer is SiO2。
The optical adhesive layer is an OCA optical adhesive layer.
The insulating layer is: one or more of thermosetting resin, thermoplastic resin and ultraviolet curing resin are used in combination.
The light transmittance of the insulating layer cannot be lower than 98%, and the haze should be lower than 0.6%.
The invention also provides a preparation method of the transparent conductive film containing the nano silver wire, which comprises the following steps:
a, preparing a nano silver wire:
preparing polyamic acid nano-fiber by adopting a polyamic acid solution with the solid content of 20 percent through an electrostatic spinning method, immersing the prepared polyamic acid nano-fiber into a silver salt solution for ion exchange to prepare polyamic acid/silver composite nano-fiber, and performing temperature rise heat treatment to generate aggregation of silver particles and degradation of polyamic acid so as to finally obtain nano-silver wires;
b, surface modification of the nano silver wire:
adding nano silver wires and a silane coupling agent into an organic solvent toluene at the temperature of 30 ℃ for 18h, cooling to room temperature, filtering, washing with an organic solvent benzene, drying to constant weight, and carrying out surface modification on the nano silver wires by using the silane coupling agent;
c, preparing a nano silver wire layer:
ultrasonically mixing a nano silver wire aqueous solution and an ITO solution according to the weight ratio of 3:5 to form 100 parts by weight of mixed solution, adding 3 parts by weight of dispersing agent in the mixing process, adding 4 parts by weight of water-soluble polymer resin with the average molecular weight less than 10000, continuing to perform ultrasonic treatment for 40 minutes, performing centrifugal separation, taking supernatant to prepare composite conductive coating, and coating the composite conductive coating on the surface of a surface-activated PET (polyethylene terephthalate) film to obtain a transparent conductive nano silver wire layer;
d, preparing a transparent conductive film:
coating an optical adhesive layer on the surface layer of the nano silver wire layer, coating a layer of resin on the optical adhesive layer, drying and curing the resin by adopting a heating or ultraviolet irradiation mode to form an insulating layer, coating an organic silicon pressure-sensitive adhesive on the surface of the insulating layer, and fixing an anti-reflection protective layer on the surface of the insulating layer to obtain the transparent conductive film.
The weight ratio of the nano silver wire to the silane coupling agent is 1: 1.2.
The present invention has been described in connection with the specific embodiments, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and it is within the protection scope of the present invention as long as various modifications are made by using the method concept and technical solution of the present invention, or the present invention is directly applied to other occasions without modification.
Claims (8)
1. The transparent conductive film containing the nano-silver wire is characterized by comprising an anti-reflection protective layer, an insulating layer, an optical adhesive layer and a nano-silver wire layer which are sequentially laminated from top to bottom.
2. The transparent conductive film containing silver nanowires of claim 1, wherein the refractive index of the anti-reflection protective layer is 1.30-1.80.
3. The transparent conductive film containing nano-silver wires as claimed in claim 1, wherein the material of the anti-reflection protective layer is MgF2、SiO2And cryolite.
4. The transparent conductive film containing silver nanowires of claim 1, wherein the optical adhesive layer is an OCA optical adhesive layer.
5. The transparent conductive film containing nano-silver wires according to claim 1, wherein the insulating layer is: one or more of thermosetting resin, thermoplastic resin and ultraviolet curing resin are used in combination.
6. The transparent conductive film containing silver nanowires of claim 1, wherein the insulating layer has a light transmittance of not less than 98% and a haze of less than 0.6%.
7. The method for preparing a transparent conductive film containing silver nanowires of claim 1, comprising the steps of:
a, preparing a nano silver wire:
preparing polyamic acid nano-fiber by adopting a polyamic acid solution with the solid content of 20 percent through an electrostatic spinning method, immersing the prepared polyamic acid nano-fiber into a silver salt solution for ion exchange to prepare polyamic acid/silver composite nano-fiber, and performing temperature rise heat treatment to generate aggregation of silver particles and degradation of polyamic acid so as to finally obtain nano-silver wires;
b, surface modification of the nano silver wire:
adding nano silver wires and a silane coupling agent into an organic solvent toluene at the temperature of 25-45 ℃ for 18h, cooling to room temperature, filtering, washing with an organic solvent benzene, drying to constant weight, and carrying out surface modification on the nano silver wires by using the silane coupling agent;
c, preparing a nano silver wire layer:
carrying out ultrasonic mixing on a nano silver wire aqueous solution and an ITO solution according to the weight ratio of 2-8:2-8 to form 100 parts by weight of mixed solution, adding 3 parts by weight of dispersing agent in the mixing process, adding 2-6 parts by weight of water-soluble polymer resin with the average molecular weight less than 10000, continuing ultrasonic treatment for 40 minutes, carrying out centrifugal separation, taking supernatant to prepare a composite conductive coating, and coating the composite conductive coating on the surface of a PET film with an activated surface to obtain a transparent conductive nano silver wire layer;
d, preparing a transparent conductive film:
coating an optical adhesive layer on the surface layer of the nano silver wire layer, coating a layer of resin on the optical adhesive layer, drying and curing the resin by adopting a heating or ultraviolet irradiation mode to form an insulating layer, coating an organic silicon pressure-sensitive adhesive on the surface of the insulating layer, and fixing an anti-reflection protective layer on the surface of the insulating layer to obtain the transparent conductive film.
8. The method for preparing a transparent conductive film containing silver nanowires of claim 7, wherein the ratio of the silver nanowires to the silane coupling agent is 1:1-1.4 by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911170263.6A CN110993150A (en) | 2019-11-26 | 2019-11-26 | Transparent conductive film containing nano silver wire and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911170263.6A CN110993150A (en) | 2019-11-26 | 2019-11-26 | Transparent conductive film containing nano silver wire and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110993150A true CN110993150A (en) | 2020-04-10 |
Family
ID=70086866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911170263.6A Pending CN110993150A (en) | 2019-11-26 | 2019-11-26 | Transparent conductive film containing nano silver wire and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110993150A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111586909A (en) * | 2020-05-09 | 2020-08-25 | 惠州市沃瑞科技有限公司 | Deicing and demisting film and preparation method thereof |
-
2019
- 2019-11-26 CN CN201911170263.6A patent/CN110993150A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111586909A (en) * | 2020-05-09 | 2020-08-25 | 惠州市沃瑞科技有限公司 | Deicing and demisting film and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104134484B (en) | Flexible transparent conductive film and preparation method based on nano-silver thread | |
| CN106131984B (en) | Preparation method of silver nanowire graphene oxide composite conductive film heater | |
| CN108630339B (en) | Ultra-soft low-resistance transparent conductive film and preparation method thereof | |
| KR20140094415A (en) | Coating composition for transparent conductive film, transparent conductive film and method for fabricating the same | |
| JP2018504749A (en) | Transparent sheet heating element | |
| CN1355907A (en) | High-reliability touch panel | |
| WO2008143714A2 (en) | Protective coatings for porous conductive films and coatings | |
| CN210142247U (en) | Flexible intelligent light adjusting film | |
| CN107463047B (en) | Electro-dimming film and preparation method and application thereof | |
| WO2016177007A1 (en) | Method for preparing anti-aging transparent conductive thin film | |
| TW201538636A (en) | Low refractive composition, method for producing the same, and transparent conductive film | |
| KR20110113873A (en) | Nano-particle composition with transparent heat-shield function and method of manufacturing thermal resistance film with transparent heat-shield function using thereof | |
| CN213844777U (en) | Nano-silver wire composite transparent conductive film | |
| CN108447617B (en) | Method for protecting nano silver wire transparent conductive film | |
| CN109116640B (en) | Graphene light modulation film and preparation method thereof | |
| CN110993150A (en) | Transparent conductive film containing nano silver wire and preparation method thereof | |
| CN108707300B (en) | High-performance solar cell panel back film and preparation method thereof | |
| CN106882931B (en) | A kind of novel intelligent shows building glass and preparation method thereof | |
| CN109369945B (en) | Flexible conductive film and preparation method thereof | |
| CN211350127U (en) | Nano silver wire conductive film | |
| JP2012111141A (en) | Transparent conductive film, and liquid crystal display element, organic el element and organic thin film solar cell using the same | |
| JP7005092B2 (en) | Embedded transparent electrode substrate and its manufacturing method | |
| CN111638610A (en) | Flexible intelligent light adjusting film with high visible light transmittance and heat insulation and preparation method thereof | |
| CN101725317A (en) | Dimming glass and manufacturing method thereof | |
| KR102030267B1 (en) | Manufacturing method of smart window film and smart window film thereby |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200410 |
|
| WD01 | Invention patent application deemed withdrawn after publication |