CN107526226B - Combined dimming glass composite window and preparation method thereof - Google Patents
Combined dimming glass composite window and preparation method thereof Download PDFInfo
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- CN107526226B CN107526226B CN201710610995.7A CN201710610995A CN107526226B CN 107526226 B CN107526226 B CN 107526226B CN 201710610995 A CN201710610995 A CN 201710610995A CN 107526226 B CN107526226 B CN 107526226B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/153—Constructional details
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/153—Constructional details
- G02F1/155—Electrodes
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/228—Other specific oxides
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/28—Other inorganic materials
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/90—Other aspects of coatings
- C03C2217/94—Transparent conductive oxide layers [TCO] being part of a multilayer coating
- C03C2217/948—Layers comprising indium tin oxide [ITO]
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/15—Deposition methods from the vapour phase
- C03C2218/154—Deposition methods from the vapour phase by sputtering
- C03C2218/156—Deposition methods from the vapour phase by sputtering by magnetron sputtering
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Abstract
The invention relates to a combined dimming glass composite window and a preparation method thereof, wherein the combined dimming glass composite window comprises a substrate, a first outer ITO transparent conductive film layer, an electrochromic layer, an ion transmission layer, an ion storage layer and a second outer ITO transparent conductive film layer which are sequentially arranged on the outer surface of the substrate, and an inner ITO transparent conductive film layer, a PDLC (polymer dispersed liquid crystal) dimming film and an ITO transparent conductive film which are sequentially arranged on the inner surface of the substrate; the substrate is made of common glass, toughened glass, laminated glass, organic glass or a mixture of the common glass, the toughened glass, the laminated glass and the organic glass, the thin film material of the electrochromic layer is made of tungsten oxide, the ion conducting layer is made of a metal lithium ion thin film, and the ion storage layer is made of a nickel oxide ion thin film, so that the electrochromic device has the advantages that: the electrochromic layer and the PDLC light modulation film are combined, and the advantages and the disadvantages of the electrochromic layer and the PDLC light modulation film are combined, so that the intelligent light modulation and shading effects can be achieved.
Description
Technical Field
The invention belongs to the field of electrochromic devices and polymer dispersed liquid crystal dimming devices, in particular to a polymer dispersed liquid crystal dimming device
Relates to a combined dimming glass composite window and a preparation method thereof.
Background
With the increasing exhaustion of earth resources and the excessive influence of human beings on the environment, green, environment-friendly, energy-saving and low-carbon materials become a hotspot of research, and the color-changing material is a novel functional material developed under the situation.
The electrochromic material is a functional material with a good application prospect, and has a wide application prospect in large-scale display, optical switches, glare-free mirrors, electrochromic storage devices, building window glass and smart windows, and devices made of the electrochromic material are called electrochromic devices.
The Polymer Dispersed Liquid Crystal (PDLC) is a material obtained by mixing a low molecular liquid crystal (abbreviated as LC) with a prepolymer, performing a polymerization reaction under a certain condition to form micron-sized liquid crystal droplets, uniformly dispersing the micron-sized liquid crystal droplets in a polymer network, and then utilizing the dielectric anisotropy of liquid crystal molecules to obtain the material with the electro-optical response characteristic, and is widely applied to the aspects of optical modulators, thermosensitive and pressure-sensitive devices, electrically controlled glass, light valves, projection displays, electronic books and the like.
Among them, an Electrochromic (EC) device is a phenomenon in which optical properties (reflectivity, transmittance, absorption, etc.) of a material undergo a stable and reversible color change under the action of an external electric field, and is visually represented as reversible changes in color and transparency. Its disadvantages and limitations are represented by the change of transparency-shading, but not really blocking the view (no privacy); the basic structure of Polymer Dispersed Liquid Crystal (PDLC) is a composite material in which liquid crystal droplets are uniformly dispersed in a polymer matrix, and the material can show two states of transparency and scattering under the switching action of an electric field; the disadvantage and limitation is that both transparent and scattering states block the line of sight (privacy protection), but do not really block the light.
Therefore, it is very necessary to develop a combined type dimming glass composite window capable of intelligent dimming and real shading and a preparation method thereof.
Disclosure of Invention
The invention aims to provide a combined dimming glass composite window capable of intelligently dimming and really shading and a preparation method thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a combined dimming glass composite window, its innovation point lies in:
the device comprises a substrate, a first outer ITO transparent conductive film layer, an electrochromic layer, an ion transmission layer, an ion storage layer and a second outer ITO transparent conductive film layer, which are sequentially arranged on the outer surface of the substrate, and an inner ITO transparent conductive film layer, a PDLC (polymer dispersed liquid crystal) dimming film and an ITO transparent conductive film which are sequentially arranged on the inner surface of the substrate;
the substrate is made of common glass, toughened glass, laminated glass, organic glass or a mixture of the common glass, the toughened glass, the laminated glass and the organic glass, the thin film material of the electrochromic layer is made of tungsten oxide, the ion transmission layer is made of a metal lithium ion thin film, and the ion storage layer is made of a nickel oxide ion thin film.
Further, the metal lithium ion film is doped with tantalum, niobium, cobalt or a mixture thereof.
The preparation process of the combined dimming glass composite window has the innovation points that: the method comprises the following steps:
(1) forming a layer of transparent conductive film with the thickness of 20-400 nm on the outer surface of the substrate by adopting a vacuum coating process, wherein the transparent conductive film is made of ITO (indium tin oxide), and further forming a first outer ITO transparent conductive film layer on the outer surface of the substrate;
(2) taking metal tungsten as a target material, taking oxygen as a working gas, and taking the oxygen doping proportion as 0.5% -20%, forming an electrochromic layer with the thickness of 300 nm-600 nm on the surface of the first outer ITO transparent conductive film layer by adopting a reactive magnetron sputtering method, or taking tungsten oxide as a target material, and directly sputtering the target material on the surface of the first outer ITO transparent conductive film layer to form the electrochromic layer with the thickness of 300 nm-600 nm;
(3) forming a metal lithium ion film with the thickness of 10 nm-300 nm on the surface of the electrochromic layer by adopting a vacuum coating mode, and further forming an ion transmission layer;
(4) taking metallic nickel as a target material, taking oxygen as a working gas, and taking the oxygen doping proportion as 0.5% -20%, forming an ion storage layer with the thickness of 150 nm-350 nm on the surface of the ion transmission layer by adopting a reactive magnetron sputtering method, or taking nickel oxide as a target material, and directly sputtering on the surface of the ion transmission layer to form an ion storage layer with the thickness of 150 nm-350 nm;
(5) forming a layer of transparent conductive film with the thickness of 20-400 nm on the surface of the ion storage layer by adopting a vacuum coating process, wherein the transparent conductive film is made of ITO (indium tin oxide), and further forming a second outer ITO transparent conductive film layer on the surface of the ion storage layer;
(6) forming a layer of transparent conductive film with the thickness of 20 nm-400 nm on the inner surface of the substrate by adopting a vacuum coating process, wherein the transparent conductive film is made of ITO (indium tin oxide), and further forming an inner ITO transparent conductive film layer on the inner surface of the substrate;
(7) mixing low molecular liquid crystal and prepolymer UV series glue, forming micron-sized liquid crystal microdrops through polymerization reaction, uniformly dispersing in a high molecular network, uniformly coating a polymer dispersed liquid crystal solution on an inner ITO transparent conductive film layer, and curing to form a film material with dielectric anisotropy and electro-optic response characteristics, wherein the coating thickness of the film material is 2-50 um, so as to form a PDLC liquid crystal light modulation film;
(8) and (3) attaching the ITO transparent conductive film with the thickness of 20 nm-400 nm to the PDLC liquid crystal dimming film in an attaching or vacuum adsorption mode to form the ITO transparent conductive film, so as to form the combined dimming glass composite window.
Further, in the step (2), the metal tungsten is used as a target material, oxygen is used as a working gas, a reaction magnetron sputtering method is adopted, and the basic parameters are as follows: background vacuum degree of 6 x 10-4Pa, the working pressure is 2-3 Pa, and the sputtering power is DC 220W.
Further, in the step (4), the metal nickel is used as a target material, oxygen is used as a working gas, a reaction magnetron sputtering method is adopted, and the basic parameters are as follows: background vacuum degree of 6 x 10-4Pa, the working pressure is 2-3 Pa, and the sputtering power is DC 200-500W.
The invention has the advantages that:
(1) the combined dimming glass composite window disclosed by the invention combines the electrochromic layer and the PDLC (polymer dispersed liquid crystal) dimming film, integrates the advantages and the disadvantages of the electrochromic layer and the PDLC dimming film, and further can achieve the effects of intelligent dimming and shading;
(2) according to the combined dimming glass composite window, the metal lithium ion film is also doped with tantalum, niobium, cobalt or a mixture of the tantalum, the niobium and the cobalt, so that the characteristics of an ion transmission layer can be improved, the uniformity and the service life of the film are improved, and the realization of a large-area preparation process is ensured;
(3) the preparation method of the combined dimming glass composite window is effective combination of the existing mature technology full-solid electrochromic device color-changing technology and the PDLC liquid crystal dimming film preparation technology, has simple process, is easy to realize industrial production, increases little compared with the preparation cost of the existing full-solid electrochromic device, is easy to realize commercialization, and can better adapt to market demands.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of the composite dimming glass composite window of the present invention.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
Examples
As shown in fig. 1, the combined dimming glass composite window of the embodiment includes a substrate 1, a first outer ITO transparent conductive film layer 2, an electrochromic layer 3, an ion transmission layer 4, an ion storage layer 5, and a second outer ITO transparent conductive film layer 6 sequentially disposed on an outer surface of the substrate 1, and further includes an inner ITO transparent conductive film layer 7, a PDLC liquid crystal dimming film 8, and an ITO transparent conductive film 9 sequentially disposed on an inner surface of the substrate 1; the substrate 1 is made of common glass, toughened glass, laminated glass, organic glass or a mixture of the common glass, the toughened glass, the laminated glass and the organic glass, the thin film material of the electrochromic layer 3 is made of tungsten oxide, the ion transmission layer 4 is made of a metal lithium ion thin film, and the ion storage layer 5 is made of a nickel oxide ion thin film.
The preparation method of the combined dimming glass composite window comprises the following steps:
(1) forming a layer of transparent conductive film with the thickness of 20 nm-400 nm on the outer surface of the substrate by adopting a vacuum coating process, wherein the transparent conductive film is made of ITO (indium tin oxide), and further forming a first outer ITO transparent conductive film layer 2 on the outer surface of the substrate 1;
(2) taking metal tungsten as a target material, taking oxygen as a working gas, and taking the oxygen doping proportion as 0.5% -20%, forming an electrochromic layer 3 with the thickness of 300 nm-600 nm on the surface of the first outer ITO transparent conductive film layer 2 by adopting a reactive magnetron sputtering method, or taking tungsten oxide as a target material, directly sputtering on the surface of the first outer ITO transparent conductive film layer 2 to form the electrochromic layer 3 with the thickness of 300 nm-600 nm, wherein the basic parameters of the reactive magnetron sputtering are as follows: background vacuum degree of 6 x 10-4Pa, the working air pressure is 2-3 Pa, and the sputtering power is DC 200W;
(3) forming a metal lithium ion film with the thickness of 10 nm-300 nm on the surface of the electrochromic layer 3 by adopting a vacuum coating mode, and further forming an ion transmission layer 4;
(4) the method comprises the following steps of taking metallic nickel as a target material, taking oxygen as a working gas, enabling the oxygen doping proportion to be 0.5% -20%, forming an ion storage layer 5 with the thickness of 150 nm-350 nm on the surface of an ion transmission layer 4 by adopting a reactive magnetron sputtering method, or directly sputtering nickel oxide as a target material on the surface of the ion transmission layer 4 to form the ion storage layer 5 with the thickness of 150 nm-350 nm, wherein the basic parameters of reactive magnetron sputtering are as follows: background vacuum degree of 6 x 10-4Pa, the working air pressure is 2-3 Pa, and the sputtering power is DC 220-500W;
(5) forming a transparent conductive film with the thickness of 20-400 nm on the surface of the ion storage layer 5 by adopting a vacuum coating process, wherein the transparent conductive film is made of ITO (indium tin oxide), and further forming a second outer ITO transparent conductive film layer 6 on the surface of the ion storage layer;
(6) forming a transparent conductive film with the film thickness of 20-400 nm on the inner surface of the substrate by adopting a vacuum coating process, wherein the transparent conductive film is made of ITO (indium tin oxide), and further forming an inner ITO transparent conductive film layer 7 on the inner surface of the substrate 1;
(7) mixing low molecular liquid crystal and prepolymer UV series glue, forming micron-sized liquid crystal microdrops through polymerization reaction, uniformly dispersing in a high molecular network, uniformly coating the polymer dispersed liquid crystal solution on an inner ITO transparent conductive film layer, curing to form a film material with dielectric anisotropy and electro-optic response characteristics, wherein the coating thickness of the film material is 2-50 um, and further forming a PDLC liquid crystal light modulation film 8;
(8) and (3) attaching the ITO transparent conductive film with the thickness of 20 nm-400 nm to the PDLC liquid crystal dimming film in an attaching or vacuum adsorption mode to form an ITO transparent conductive film 9, thereby forming the combined dimming glass composite window.
In order to compare the performance of the combined dimming glass composite window and the traditional glass window, electrochromic layers with different light transmittance ratios and a polymer dispersed liquid crystal dimming film in a closed state are selected and used in a matched mode, and the comparison result is shown in the following table:
| EC | | composite window | |
| 5% | Closing device | 0% (complete darkness) | |
| 5% | Tong (Chinese character of 'tong') | 4.5% (observable under strong light) | |
| 65% | Closing device | 0% -4% (observable under strong light) | |
| 65% | Tong (Chinese character of 'tong') | 60% -65% (transparent) | |
| 5 to 65 percent of regulation | Tong (Chinese character of 'tong') | 4.5% -65% (optionally adjusted between) |
As can be seen from the above table, the transmittance of the glass window prepared by solely using the electrochromic layer with a transmittance of 5% is 0%, and the glass window is completely dark; the light transmittance of the prepared glass window is 4.5 percent by adopting an electrochromic layer with the light transmittance of 5 percent and a polymer dispersed liquid crystal dimming film which is matched with the electrochromic layer for use, and the glass window can be observed under strong light; the electrochromic layer with the light transmittance of 65% is independently adopted, the light transmittance of the prepared glass window is 0% -4%, and the glass window can be observed under strong light; therefore, under the condition that the polymer dispersed liquid crystal dimming film is not adopted, the higher the light transmittance of the adopted electrochromic layer is, the glass window prepared also has certain light transmittance; the light transmittance of the glass window is 60% -65% by adopting the electrochromic layer with the light transmittance of 65% and the polymer dispersed liquid crystal dimming film, and the light transmittance of the glass window is 4.5% -65% by adopting the electrochromic layer with the light transmittance of 5% -65% and the polymer dispersed liquid crystal dimming film, so that the combined dimming glass composite window can achieve the effects of intelligent dimming and shading.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A preparation process of a combined dimming glass composite window is characterized by comprising the following steps:
the combined dimming glass composite window comprises a substrate, a first outer ITO transparent conductive film layer, an electrochromic layer, an ion transmission layer, an ion storage layer and a second outer ITO transparent conductive film layer, which are sequentially arranged on the outer surface of the substrate, and further comprises an inner ITO transparent conductive film layer, a PDLC liquid crystal dimming film and an ITO transparent conductive film which are sequentially arranged on the inner surface of the substrate;
the preparation process further comprises the following steps:
forming a layer of transparent conductive film with the thickness of 20-400 nm on the outer surface of the substrate by adopting a vacuum coating process, wherein the transparent conductive film is made of ITO (indium tin oxide), and further forming a first outer ITO transparent conductive film layer on the outer surface of the substrate;
forming the electrochromic layer with the thickness of 300-600 nm on the surface of the first outer ITO transparent conductive film layer by adopting a reactive magnetron sputtering method and taking metal tungsten as a target material and oxygen as working gas, wherein the oxygen doping proportion is 0.5%; forming a layer of metal lithium ion film with the thickness of 10 nm-300 nm on the surface of the electrochromic layer by adopting a vacuum coating method to serve as the ion transmission layer, wherein the metal lithium ion film is also doped with tantalum, niobium, cobalt or a mixture of the tantalum, the niobium and the cobalt;
forming the ion storage layer with the thickness of 150 nm-350 nm on the surface of the ion transmission layer by adopting a reactive magnetron sputtering method and taking metal nickel as a target material and oxygen as working gas, wherein the oxygen doping proportion is 0.5%;
forming a transparent conductive film with the thickness of 20-400 nm on the surface of the ion storage layer by adopting a vacuum coating process, wherein ITO is selected as a transparent conductive film material, and further forming a second outer ITO transparent conductive film layer on the surface of the ion storage layer;
forming a layer of transparent conductive film with the thickness of 20-400 nm on the inner surface of the substrate by adopting a vacuum coating process, wherein the transparent conductive film is made of ITO (indium tin oxide), and further forming an inner ITO transparent conductive film layer on the inner surface of the substrate;
mixing low molecular liquid crystal and a prepolymer UV series adhesive, and performing polymerization reaction to form a polymer dispersed liquid crystal solution, wherein the polymer dispersed liquid crystal solution comprises micron-sized liquid crystal microdroplets which are uniformly dispersed in a high molecular network, uniformly coating the polymer dispersed liquid crystal solution on the inner ITO transparent conductive film layer, and curing to form a film material with dielectric anisotropy and electro-optic response characteristics, wherein the coating thickness of the film material is 2-50 mu m, so that the PDLC light modulation film is formed;
and adhering the ITO transparent conductive film with the thickness of 20 nm-400 nm to the PDLC liquid crystal dimming film in an adhering or vacuum adsorption mode to form the combined dimming glass composite window.
2. The process of making a combination privacy glass composite window of claim 1, wherein: when the electrochromic layer is formedThe basic parameters are as follows: background vacuum degree of 6 x 10-4Pa, the working pressure is 2-3 Pa, and the sputtering power is DC 220W.
3. The process of making a combination privacy glass composite window of claim 1, wherein: when the ion storage layer is formed, the basic parameters are as follows: background vacuum degree of 6 x 10-4Pa, the working pressure is 2-3 Pa, and the sputtering power is DC 200-500W.
4. The combined dimming glass composite window is characterized by comprising a substrate, a first outer ITO transparent conductive film layer, an electrochromic layer, an ion transmission layer, an ion storage layer and a second outer ITO transparent conductive film layer which are sequentially arranged on the outer surface of the substrate, and an inner ITO transparent conductive film layer, a PDLC (polymer dispersed liquid crystal) dimming film and an ITO transparent conductive film which are sequentially arranged on the inner surface of the substrate; the substrate is made of common glass, toughened glass, laminated glass, organic glass or a mixture of the common glass, the toughened glass, the laminated glass and the organic glass, the thin film material of the electrochromic layer is made of tungsten oxide, the ion transmission layer is made of a metal lithium ion thin film, and the ion storage layer is made of a nickel oxide ion thin film; the metal lithium ion film is also doped with tantalum, niobium, cobalt or a mixture thereof;
the first outer ITO transparent conductive film layer, the electrochromic layer, the ion transmission layer, the ion storage layer, the second outer ITO transparent conductive film layer, the inner ITO transparent conductive film layer, the PDLC liquid crystal dimming film and the ITO transparent conductive film are obtained according to the preparation process of the combined dimming glass composite window disclosed by any one of claims 1 to 3.
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| CN110095911B (en) * | 2018-09-06 | 2022-02-22 | 南通繁华新材料科技有限公司 | Preparation method of electrochromic device |
| CN111445785B (en) | 2019-01-16 | 2022-06-10 | 北京小米移动软件有限公司 | Electronic equipment and screen module |
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