WO2023149397A1 - 多層積層体 - Google Patents
多層積層体 Download PDFInfo
- Publication number
- WO2023149397A1 WO2023149397A1 PCT/JP2023/002866 JP2023002866W WO2023149397A1 WO 2023149397 A1 WO2023149397 A1 WO 2023149397A1 JP 2023002866 W JP2023002866 W JP 2023002866W WO 2023149397 A1 WO2023149397 A1 WO 2023149397A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light control
- control layer
- multilayer laminate
- liquid crystal
- base material
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 82
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 45
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 14
- 229920000642 polymer Polymers 0.000 claims description 12
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 claims description 9
- 239000005357 flat glass Substances 0.000 claims description 9
- 235000021286 stilbenes Nutrition 0.000 claims description 3
- 150000004053 quinones Chemical class 0.000 claims 1
- 150000001629 stilbenes Chemical class 0.000 claims 1
- 238000002834 transmittance Methods 0.000 abstract description 29
- 238000010030 laminating Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 116
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- -1 for example Substances 0.000 description 5
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- VCMLCMCXCRBSQO-UHFFFAOYSA-N 3h-benzo[f]chromene Chemical compound C1=CC=CC2=C(C=CCO3)C3=CC=C21 VCMLCMCXCRBSQO-UHFFFAOYSA-N 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- BIAWAXVRXKIUQB-UHFFFAOYSA-N 2-(2-phenylethenyl)pyridine Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=N1 BIAWAXVRXKIUQB-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- PJANXHGTPQOBST-VAWYXSNFSA-N Stilbene Natural products C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- SQDFHQJTAWCFIB-UHFFFAOYSA-N n-methylidenehydroxylamine Chemical compound ON=C SQDFHQJTAWCFIB-UHFFFAOYSA-N 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 2
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
- B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
-
- 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
-
- 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
-
- 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
- G02F1/17—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 variable-absorption elements not provided for in groups G02F1/015 - G02F1/169
Definitions
- the present invention relates to a multilayer laminate, and more particularly to a multilayer laminate having a dimming function.
- window glass with a light control function has been widely used for building window glass and vehicle window glass.
- a windowpane having such a light control function can be constructed by providing a light control sheet on the windowpane.
- the light control sheet can be configured using a light control layer containing liquid crystal molecules and a pair of transparent electrode layers sandwiching the light control layer.
- Patent Document 1 discloses a technology related to a light control sheet that suppresses color unevenness exhibited by the light control layer and enables improvement of long-term reliability.
- the haze (cloudiness) of the light-modulating layer can be controlled. That is, the haze of the light control layer can be appropriately controlled by changing the alignment state of the liquid crystal molecules and changing the scattering state of light passing through the light control layer.
- an object of the present invention is to provide a multilayer laminate whose haze and transmittance can be appropriately adjusted.
- a multilayer laminate according to one aspect of the present invention includes a base material, a first light control layer containing liquid crystal molecules whose orientation state changes according to an applied voltage, and a second light control layer containing a photochromic material. It is a laminated multilayer laminate.
- the base material may include a first base material and a second base material, and the first base material, the first light control layer, the second light control layer, and It may be laminated in order of the second base material.
- the first light control layer is a polymer-dispersed liquid crystal in which the liquid crystal molecules are dispersed in a polymer, or a polymer in which the liquid crystal molecules are arranged inside a three-dimensional polymer network. It may be a network type liquid crystal.
- the photochromic material may be at least one selected from the group consisting of triarylmethane, stilbene, azastilbene, nitrone, fulgide, spiropyran, naphthopyran, spirooxazine and quinone.
- the second light control layer may be made of polyvinyl butyral, and the photochromic material may be dispersed in the polyvinyl butyral.
- the multilayer laminate may be used as a material constituting at least one of a vehicle window glass, a vehicle sunroof, and a building window glass.
- FIG. 1 is a cross-sectional view for explaining a configuration example of a multilayer laminate according to an embodiment
- the multilayer laminate according to the present embodiment includes at least a substrate, a first light control layer containing liquid crystal molecules whose alignment state changes according to an applied voltage, and a second light control layer containing a photochromic material. It has a configured configuration.
- the multilayer laminate according to this embodiment will be described in detail below.
- FIG. 1 is a cross-sectional view for explaining a configuration example of a multilayer laminate according to an embodiment.
- the multilayer laminate 1 according to this embodiment includes a first base material 11 , a second base material 12 , a first light control layer 21 and a second light control layer 22 . That is, the multilayer laminate 1 shown in FIG. 1 includes a first substrate 11 and a second substrate 12 as substrates. 22, and the second base material 12 are laminated in this order. In other words, the first light control layer 21 and the second light control layer 22 are sandwiched between the first base material 11 and the second base material 12 .
- the first base material 11 and the second base material 12 can be configured using a transparent material.
- the first base material 11 and the second base material 12 can be configured using a transparent resin material or transparent glass.
- a resin material for example, polycarbonate, polyethylene, polyethylene terephthalate, polyethylene naphthalate, polypropylene, vinyl chloride resin, or the like can be used.
- At least one of the first base material 11 and the second base material 12 may be colored in a predetermined color within the scope of the present invention.
- a pigment may be added to the resin material or glass constituting the base material.
- a dye is a material that absorbs light of a wavelength corresponding to predetermined light included in the visible light region.
- dyes and pigments can be used as pigments.
- the first light control layer 21 contains liquid crystal molecules whose alignment state changes according to the applied voltage.
- the first light control layer 21 may be a polymer dispersed liquid crystal (PDLC) in which liquid crystal molecules are dispersed in a polymer.
- the first light control layer 21 may be a polymer network liquid crystal (PNLC: Polymer Network Liquid Crystal) in which liquid crystal molecules are arranged inside a three-dimensional mesh polymer network.
- PDLC polymer dispersed liquid crystal
- PNLC Polymer network liquid crystal
- the first light control layer 21 may be configured using a liquid crystal layer (not shown) containing liquid crystal molecules and two transparent electrode layers (not shown) provided to sandwich the liquid crystal layer. can be done.
- the liquid crystal layer can be configured using the above-described polymer dispersed liquid crystal (PDLC) or polymer network liquid crystal (PNLC).
- the transparent electrode layer can be configured using, for example, a transparent oxide conductor.
- the transparent oxide conductor for example, ITO, IZO, SnO 2 or the like can be used.
- the transparent electrode layer may be formed using a conductive polymer.
- PEDOT/PSS or the like can be used as the conductive polymer.
- the liquid crystal molecules contained in the first light control layer 21 change their alignment state according to the applied voltage applied to the transparent electrode layer. Specifically, when a voltage is applied to the transparent electrode layer, the liquid crystal molecules are aligned in the direction of the electric field. become transparent. On the other hand, when no voltage is applied to the transparent electrode layer, the arrangement of the liquid crystal molecules becomes irregular, and the light passing through the first light control layer 21 is scattered and becomes opaque (white turbidity).
- the second light control layer 22 contains a photochromic material.
- a photochromic material is a material that, upon irradiation with light, changes its molecular structure without changing its molecular weight, and reversibly produces two isomers with different absorption spectra.
- a material that changes color when sunlight is incident may be used as the photochromic material.
- a material that changes color with light having a wavelength of 370 nm or longer may be used as the photochromic material.
- the second light control layer 22 has a function of adjusting the transmittance (total light transmittance) of the multilayer laminate 1 .
- the transmittance of the second light control layer 22 may be reduced when light with a wavelength of 370 nm or more is incident on the second light control layer 22 .
- At least one selected from the group consisting of triarylmethane, stilbene, azastilbene, nitrone, fulgide, spiropyran, naphthopyran, spirooxazine and quinone may be used as the photochromic material.
- the photochromic material By appropriately selecting the amount of photochromic material added, it is possible to control the transmittance to a desired value.
- the second light control layer 22 may be configured by dispersing a photochromic material in a resin sheet that is a base material.
- a resin sheet for example, polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer resin (EVA), polyurethane, or the like can be used. Since the response speed of the photochromic material greatly depends on the resin sheet that is the base material, it is more preferable to use plasticized polyvinyl butyral (PVB) as the base material of the second light control layer 22 in this embodiment.
- the first base material 11, the second base material 12, the first light control layer 21, and the second light control layer 22 may be adhered to each other via an adhesive layer.
- a thermoplastic resin, a thermosetting resin, or a photocurable resin can be used for the adhesive layer.
- PVB plasticized polyvinyl butyral
- the multilayer laminate according to the present embodiment includes a substrate, the first light control layer 21 containing liquid crystal molecules whose alignment state changes according to the applied voltage, and the second light control layer 21 containing a photochromic material. At least the light control layer 22 is laminated. Since the first light control layer 21 contains liquid crystal molecules, it is possible to control whether the first light control layer 21 becomes transparent or opaque according to the applied voltage. Therefore, the haze (cloudiness) of the multilayer laminate 1 can be adjusted using the first light control layer 21 . Moreover, since the second light control layer 22 contains a photochromic material, the color of the second light control layer 22 changes according to the light incident on the second light control layer 22 . Therefore, the transmittance (total light transmittance) of the multilayer laminate 1 can be adjusted using the second light control layer 22 .
- haze cloudiness
- transmittance can be adjusted using the second light control layer 22. Therefore, haze and transmittance can be adjusted. can be appropriately adjusted.
- the multilayer laminate 1 according to the present embodiment may be used as a material for composing vehicle window glass, vehicle sunroof, building window glass, and the like.
- the haze (cloudiness value) can be arbitrarily adjusted according to the application.
- the haze (cloudiness) in the transparent mode is more preferably 3% or less.
- the transmittance can be arbitrarily adjusted according to the application.
- the transmittance range can be controlled by the amount of photochromic material added.
- Vehicle sunroofs are preferably adjusted in the range of 50% to 4% to reduce glare from sunlight.
- a commercially available dye or pigment may be used to adjust the transmittance indoors.
- the multilayer laminate 1 according to the present embodiment when used for a vehicle sunroof, sunlight can be blocked by the second light control layer 22 when the weather is fine.
- the haze (cloudiness) of the multilayer laminate 1 can be adjusted by adjusting the voltage applied to the first light-modulating layer 21 .
- the transmittance of the second light control layer 22 is high at night or in cloudy weather, the visibility of the outside of the vehicle can be improved.
- the haze (cloudiness) of the multilayer laminate 1 can be adjusted by adjusting the voltage applied to the first light-modulating layer 21 .
- the haze (cloudiness) of the first light control layer 21 it is possible to make it difficult to see the inside of the vehicle from the outside, and the privacy inside the vehicle can be protected.
- FIG. 1 shows a configuration example in which the first base material 11, the first light control layer 21, the second light control layer 22, and the second base material 12 are laminated in this order.
- first base material 11 and second base material 12 may be omitted.
- the second base material 12 is used to maintain the weather resistance of the second base material 12 side.
- the first base material 11 may be omitted while providing the base material 12 .
- the positions of the first light control layer 21 and the second light control layer 22 may be reversed.
- the second light control layer 22 and the first light control layer 21 may be provided in this order from the light incident side (see FIG. 1). may be provided in the order of the first light control layer 21 and the second light control layer 22 from the incident side.
- the first light control layer 21 and the second light control layer 22 may be formed as the same layer. That is, the photochromic material may be dispersed inside the polymer dispersed liquid crystal (PDLC) or the polymer network liquid crystal (PNLC) forming the first light control layer 21 .
- the liquid crystal molecules contained in the first light control layer 21 are used to control the transmission and scattering of light to adjust the haze (cloudiness), and the liquid crystal molecules in the first light control layer 21
- a photochromic material dispersed in a liquid can be used to adjust the transmittance of light.
- a decorative layer with a design may be included in the multilayer laminate.
- a multilayer laminate having the configuration shown in FIG. 1 was produced as a sample according to the example.
- Glass was used for the first base material 11 and the second base material 12 .
- a PDLC film manufactured by Kyushu Nanotech Optical Co., Ltd. was used for the first light control layer 21 .
- a film in which a photochromic material is dispersed in plasticized polyvinyl butyral (PVB) as a base material is used for the second light control layer 22 .
- a naphthopyran-based material was used as the photochromic material.
- Plasticized polyvinyl butyral (PVB) was used for the adhesive layer 24 between the first dimming layer 21 and the first substrate 11 . Then, these films were laminated to prepare a sample (multilayer laminate) according to an example.
- the state in which a voltage is applied to the first light control layer 21, that is, the state in which the liquid crystal molecules are aligned in the direction of the electric field and the first light control layer 21 is transparent is referred to as a "transparent mode.”
- a state in which no voltage is applied to the first light control layer 21, that is, an opaque (cloudy) state in which the arrangement of the liquid crystal molecules becomes irregular and the light passing through the first light control layer 21 is scattered It was called "haze mode”.
- the color of the second light control layer 22 changes according to the light incident on the second light control layer 22 . Specifically, as the amount of light incident on the second light control layer 22 increases, the color of the second light control layer 22 darkens and the transmittance decreases.
- FIG. 2 is a diagram showing the indoor state of the multilayer laminate according to the example, and shows the results of observing each state indoors when the first light control layer 21 is set to the transparent mode and the haze mode. showing.
- the multilayer laminate according to the example became transparent. That is, in the transparent mode, a voltage is applied to the liquid crystal molecules contained in the first light control layer 21, and the liquid crystal molecules are aligned in the electric field direction, so the first light control layer 21 becomes transparent.
- the haze in transparent mode was 2% and the total light transmittance was 86%.
- the multi-layer laminate according to the example was in an opaque state (cloudy state). That is, when the haze mode is set, no voltage is applied to the liquid crystal molecules contained in the first light control layer 21, so the alignment of the liquid crystal molecules becomes irregular, and the light passing through the first light control layer 21 is reduced. It was scattered and turned into an opaque state (cloudy state). The haze in haze mode was 98% and the total light transmittance was 77%.
- the photochromic material contained in the second light control layer 22 is in a state where the color does not change, that is, in a state where the transmittance is high. change was only 9%.
- FIG. 3 is a diagram showing the state of the multilayer laminate according to the example outdoors, and shows the results of observation of each state when the first light control layer 21 is set to the transparent mode and the haze mode outdoors. showing.
- FIG. 3 shows the state immediately after switching the first light control layer 21 to each mode and the state after three minutes have passed.
- the multilayer laminate according to the example became transparent. That is, in the transparent mode, a voltage is applied to the liquid crystal molecules contained in the first light control layer 21, and the liquid crystal molecules are aligned in the electric field direction, so the first light control layer 21 becomes transparent.
- the sunlight was transmitted immediately after switching to the transparent mode, but after 3 minutes from switching to the transparent mode, the color of the photochromic material contained in the second light control layer 22 changed to black without any spots, and the sunlight was transmitted. rate fell. As a result, the amount of sunlight passing through the multi-layer laminate of the example was significantly reduced. The total light transmittance at this time was 4%.
- the multi-layer laminate according to the example was in an opaque state (cloudy state). That is, when the haze mode is set, no voltage is applied to the liquid crystal molecules contained in the first light control layer 21, so the alignment of the liquid crystal molecules becomes irregular, and the light passing through the first light control layer 21 is reduced. It was scattered and turned into an opaque state (cloudy state). Immediately after switching to the haze mode, the multilayer laminate was in a cloudy state, but after 3 minutes from switching to the haze mode, the color of the photochromic material contained in the second light control layer 22 changed to black, and the transmittance decreased. The total light transmittance at this time was 4%.
- the haze (cloudiness) is adjusted from 2% to 98% using the first light control layer 21, and the second light control is performed by moving from indoors to outdoors.
- Layer 22 could be used to adjust the total light transmission from 4% to 86%. Therefore, by using the multilayer laminate according to the present invention, the haze and transmittance could be appropriately adjusted.
- the present invention has been described in accordance with the above embodiments, but the present invention is not limited only to the configurations of the above embodiments, and is applicable within the scope of the invention of the claims of the present application. Needless to say, it includes various modifications, modifications, and combinations that can be made by a trader.
- Multilayer laminate 11 First substrate 12 Second substrate 21 First light control layer 22 Second light control layer
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Structural Engineering (AREA)
- Mathematical Physics (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Liquid Crystal (AREA)
- Laminated Bodies (AREA)
Abstract
Description
実施例にかかるサンプルとして、図1に示した構成を備える多層積層体を作製した。第1基材11、及び第2基材12には、ガラスを用いた。また、第1調光層21には九州ナノテック光学株式会社製のPDLCフィルムを用いた。第2調光層22には、母材である可塑化ポリビニルブチラール(PVB)にフォトクロミック材料を分散させたフィルムを用いた。フォトクロミック材料には、ナフトピラン系の材料を用いた。また第1調光層21と第1基材11の間の接着層24には可塑化ポリビニルブチラール(PVB)を用いた。そしてこれらのフィルムを積層させて実施例にかかるサンプル(多層積層体)を作製した。
11 第1基材
12 第2基材
21 第1調光層
22 第2調光層
Claims (6)
- 基材と、
印加電圧に応じて配向状態が変化する液晶分子を含む第1調光層と、
フォトクロミック材料を含む第2調光層と、が少なくとも積層された、
多層積層体。 - 前記基材は、第1基材と第2基材とを備え、
前記第1基材、前記第1調光層、前記第2調光層、及び前記第2基材の順に積層されている、
請求項1に記載の多層積層体。 - 前記第1調光層は、前記液晶分子がポリマー中に分散された高分子分散型液晶、または三次元網目状のポリマーネットワークの内部に前記液晶分子が配置されたポリマーネットワーク型液晶である、請求項1または2に記載の多層積層体。
- 前記フォトクロミック材料が、トリアリールメタン、スチルベン、アザスチルベン、ニトロン、フルギド、スピロピラン、ナフトピラン、スピロオキサジンおよびキノンからなる群から選択される少なくとも一つである、請求項1~3のいずれか一項に記載の多層積層体。
- 前記第2調光層はポリビニルブチラールを用いて構成されており、
前記フォトクロミック材料は前記ポリビニルブチラール内に分散されている、
請求項1~4のいずれか一項に記載の多層積層体。 - 前記多層積層体は、車両用窓ガラス、車両用サンルーフ、建築物用の窓ガラスのうちの少なくとも一つを構成する材料に用いられる、請求項1~5のいずれか一項に記載の多層積層体。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023578545A JPWO2023149397A1 (ja) | 2022-02-01 | 2023-01-30 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022-014084 | 2022-02-01 | ||
JP2022014084 | 2022-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023149397A1 true WO2023149397A1 (ja) | 2023-08-10 |
Family
ID=87552348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2023/002866 WO2023149397A1 (ja) | 2022-02-01 | 2023-01-30 | 多層積層体 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPWO2023149397A1 (ja) |
WO (1) | WO2023149397A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6474285A (en) * | 1987-10-16 | 1989-03-20 | Nissan Motor | Photochromic photosensitive material |
JP2018141826A (ja) * | 2017-02-27 | 2018-09-13 | セイコーエプソン株式会社 | 画像表示装置 |
CN209979973U (zh) * | 2019-03-27 | 2020-01-21 | 张家港康得新光电材料有限公司 | 变色调光元件及调光玻璃 |
JP2020052374A (ja) | 2018-09-28 | 2020-04-02 | 凸版印刷株式会社 | 調光シート、および、調光ガラス |
JP2022014084A (ja) | 2020-07-06 | 2022-01-19 | 株式会社三共 | 遊技機 |
-
2023
- 2023-01-30 WO PCT/JP2023/002866 patent/WO2023149397A1/ja active Application Filing
- 2023-01-30 JP JP2023578545A patent/JPWO2023149397A1/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6474285A (en) * | 1987-10-16 | 1989-03-20 | Nissan Motor | Photochromic photosensitive material |
JP2018141826A (ja) * | 2017-02-27 | 2018-09-13 | セイコーエプソン株式会社 | 画像表示装置 |
JP2020052374A (ja) | 2018-09-28 | 2020-04-02 | 凸版印刷株式会社 | 調光シート、および、調光ガラス |
CN209979973U (zh) * | 2019-03-27 | 2020-01-21 | 张家港康得新光电材料有限公司 | 变色调光元件及调光玻璃 |
JP2022014084A (ja) | 2020-07-06 | 2022-01-19 | 株式会社三共 | 遊技機 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2023149397A1 (ja) | 2023-08-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10416521B2 (en) | Variable transmittance optical filter and uses thereof | |
JP7503881B2 (ja) | 多機能の調光フィルムおよびこのフィルムを含む構造体 | |
US20230013056A1 (en) | Systems With Adjustable Windows | |
EP2856222A1 (en) | Optical filter comprising a variable transmittance layer | |
US8687258B2 (en) | Variable transmittance optical filter and uses thereof | |
WO2022097739A1 (ja) | 合わせパネル用中間膜構成体、及び合わせパネル構成体 | |
EP4075190A1 (en) | Dimming glass and glass module | |
JPH06160823A (ja) | 調光用素子及び調光システム | |
CN111505857A (zh) | 一种pdlc调光膜及调光玻璃 | |
WO2023149397A1 (ja) | 多層積層体 | |
JP2020101665A (ja) | 調光ガラス | |
JP2020052374A (ja) | 調光シート、および、調光ガラス | |
US20240027818A1 (en) | Ir stable and uv stable switchable panel and methods for making and using | |
US20200398538A1 (en) | Light valve films laminated between thin glass and plastic substrates | |
CN104885001A (zh) | 具有较暗的关态透光率和较亮的开态透光率的spd膜 | |
TW202212927A (zh) | 可顯示光線調整裝置 | |
WO2023038143A1 (ja) | 調光窓 | |
CN114203020A (zh) | 可显示光线调整装置 | |
JP2000010126A (ja) | エレクトロクロミック調光体及びエレクトロクロミック調光窓 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23749713 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2023578545 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023749713 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2023749713 Country of ref document: EP Effective date: 20240902 |