WO2022025684A1 - 광변조 디바이스 - Google Patents
광변조 디바이스 Download PDFInfo
- Publication number
- WO2022025684A1 WO2022025684A1 PCT/KR2021/009926 KR2021009926W WO2022025684A1 WO 2022025684 A1 WO2022025684 A1 WO 2022025684A1 KR 2021009926 W KR2021009926 W KR 2021009926W WO 2022025684 A1 WO2022025684 A1 WO 2022025684A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- less
- formula
- modulation device
- liquid crystal
- layer
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 63
- 239000000758 substrate Substances 0.000 claims abstract description 117
- 239000010410 layer Substances 0.000 claims description 220
- 239000004973 liquid crystal related substance Substances 0.000 claims description 130
- 150000001875 compounds Chemical class 0.000 claims description 94
- 229920001296 polysiloxane Polymers 0.000 claims description 63
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 51
- 238000002834 transmittance Methods 0.000 claims description 51
- 125000000217 alkyl group Chemical group 0.000 claims description 36
- 239000012790 adhesive layer Substances 0.000 claims description 34
- 125000001424 substituent group Chemical group 0.000 claims description 29
- 125000004432 carbon atom Chemical group C* 0.000 claims description 28
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005538 encapsulation Methods 0.000 abstract description 2
- -1 poly(methyl methacrylate) Polymers 0.000 description 46
- 125000006850 spacer group Chemical group 0.000 description 41
- 239000000203 mixture Substances 0.000 description 28
- 239000000853 adhesive Substances 0.000 description 24
- 230000001070 adhesive effect Effects 0.000 description 24
- 230000000903 blocking effect Effects 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 19
- 230000010287 polarization Effects 0.000 description 18
- 229920000642 polymer Polymers 0.000 description 18
- 150000003377 silicon compounds Chemical class 0.000 description 17
- 230000004888 barrier function Effects 0.000 description 15
- 239000002019 doping agent Substances 0.000 description 15
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 14
- 239000013464 silicone adhesive Substances 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 11
- 229920000139 polyethylene terephthalate Polymers 0.000 description 11
- 125000003342 alkenyl group Chemical group 0.000 description 10
- 229920001577 copolymer Polymers 0.000 description 10
- 239000005020 polyethylene terephthalate Substances 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 125000001183 hydrocarbyl group Chemical group 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 6
- 230000031700 light absorption Effects 0.000 description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 229920006254 polymer film Polymers 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 229920002799 BoPET Polymers 0.000 description 5
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
- 238000005192 partition Methods 0.000 description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 description 5
- 239000002243 precursor Substances 0.000 description 5
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 229920002284 Cellulose triacetate Polymers 0.000 description 4
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 229910004283 SiO 4 Inorganic materials 0.000 description 4
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 4
- 125000003710 aryl alkyl group Chemical group 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 4
- 238000001723 curing Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 239000002346 layers by function Substances 0.000 description 4
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 4
- 229920006267 polyester film Polymers 0.000 description 4
- 125000003944 tolyl group Chemical group 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000004218 chloromethyl group Chemical group [H]C([H])(Cl)* 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 125000001624 naphthyl group Chemical group 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 125000005023 xylyl group Chemical group 0.000 description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- 239000005046 Chlorosilane Substances 0.000 description 2
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 description 2
- 239000004976 Lyotropic liquid crystal Substances 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 2
- 229920000491 Polyphenylsulfone Polymers 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 description 2
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 2
- 230000003098 cholesteric effect Effects 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 125000006165 cyclic alkyl group Chemical group 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 229920005994 diacetyl cellulose Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 125000006038 hexenyl group Chemical group 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 125000005375 organosiloxane group Chemical group 0.000 description 2
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 150000003058 platinum compounds Chemical class 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920001230 polyarylate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- DVWQNBIUTWDZMW-UHFFFAOYSA-N 1-naphthalen-1-ylnaphthalen-2-ol Chemical compound C1=CC=C2C(C3=C4C=CC=CC4=CC=C3O)=CC=CC2=C1 DVWQNBIUTWDZMW-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- KCADUUDDTBWILK-UHFFFAOYSA-N Cumulene Natural products CCCC=C=C=C1OC(=O)C=C1 KCADUUDDTBWILK-UHFFFAOYSA-N 0.000 description 1
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004990 Smectic liquid crystal Substances 0.000 description 1
- 238000013006 addition curing Methods 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000005083 alkoxyalkoxy group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 125000001951 carbamoylamino group Chemical group C(N)(=O)N* 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013005 condensation curing Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 150000001925 cycloalkenes Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- 125000003518 norbornenyl group Chemical class C12(C=CC(CC1)C2)* 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000636 poly(norbornene) polymer Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
Images
Classifications
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/061—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
- B32B17/10467—Variable transmission
- B32B17/10495—Variable transmission optoelectronic, i.e. optical valve
- B32B17/10504—Liquid crystal layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10697—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer being cross-linked
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10798—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing silicone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
- B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
- B32B27/283—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polysiloxanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/325—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polycycloolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
- B32B7/023—Optical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
- B32B7/027—Thermal properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/03—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers with respect to the orientation of features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1393—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/04—4 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/05—5 or more layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/308—Heat stability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/42—Polarizing, birefringent, filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/706—Anisotropic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/202—LCD, i.e. liquid crystal displays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2551/00—Optical elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133633—Birefringent elements, e.g. for optical compensation using mesogenic materials
-
- 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
- G02F2202/00—Materials and properties
- G02F2202/28—Adhesive materials or arrangements
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/01—Function characteristic transmissive
Definitions
- This application relates to an optical modulation device.
- An optical modulation device in which an optical modulation layer including a liquid crystal compound is disposed between two substrates is used for various purposes.
- the light modulation device In order for the light modulation device to exhibit the desired performance, it is important to control the alignment state of the liquid crystal compound between the substrates. Therefore, when the light modulation layer is a liquid crystal layer, a liquid crystal alignment layer is formed on both sides of the liquid crystal layer in order to control the alignment of the liquid crystal compound.
- Patent Document 1 discloses a light modulation device having a structure in which a liquid crystal aligning film is formed on one side of the liquid crystal layer and an adhesive layer is formed on the other side of the liquid crystal aligning film instead of the liquid crystal aligning film.
- the contact bonding layer disclosed by patent document 1 has a liquid-crystal orientation force, it describes the point where the orientation of a target liquid crystal compound is possible, without applying a liquid-crystal aligning film to one side of a liquid-crystal layer.
- the optical modulation device disclosed in Patent Document 1 has an advantage in that the adhesive strength of two substrates disposed opposite to each other can be excellently maintained because an adhesive is applied to one substrate.
- Patent Document 1 Republic of Korea Patent Publication No. 19837373
- the present application provides an optical modulation device.
- an adhesive layer or an adhesive layer is applied to secure the adhesive force between the substrates disposed opposite to each other and at the same time maintain the alignment of the liquid crystal compound stably, and in particular, a light modulation device capable of realizing the desired alignment state of the liquid crystal compound even at high temperatures. intended to provide
- the terms vertical, parallel, orthogonal or horizontal and the numerical value of the angle defining an angle mean substantially vertical, parallel, orthogonal or horizontal and the numerical value in a range that does not impair the intended effect.
- the vertical, parallel, orthogonal or horizontal and numerical ranges include errors such as manufacturing errors or variations.
- the physical properties are those measured at room temperature.
- room temperature refers to a temperature in a state in which the temperature is not particularly warmed or reduced, and any one temperature within the range of about 10°C to 30°C, for example, about 15°C or more, 18°C or more, 20°C or more, or about 23°C or more, , may mean a temperature of about 27 °C or less.
- the unit of temperature referred to in the present specification is °C.
- the retardation, refractive index, and refractive index anisotropy referred to in this specification means the retardation, refractive index, and refractive index anisotropy with respect to light having a wavelength of about 550 nm, unless otherwise specified.
- angles formed by any two directions mentioned herein may be an acute angle among acute to obtuse angles formed by the two directions, or a smaller angle among angles measured in a clockwise direction and a counterclockwise direction.
- angles referred to herein are positive numbers.
- any one of the angle measured in the clockwise direction and the angle measured in the counterclockwise direction is expressed as a positive number, and the other The angle can also be expressed as a negative number.
- the term light modulation device may refer to a device capable of switching between at least two or more different states of light.
- the different states of light may mean different states of at least transmittance, reflectance, color, and/or haze.
- Examples of states that the light modulation device may implement include, but are not limited to, transmission, blocking, high reflection, low reflection, and/or a color mode state representing a specific color.
- the light modulation device may be a device capable of switching between at least the transmit and block mode states.
- the transmittance of the light modulation device in the transmission mode state is at least 10% or more, 15% or more, 20% or more, 25% or more, 30% or more, 35% or more, 40% or more, 45% or more, 50% or more, 55 % or more, 60% or more, 65% or more, 70% or more, 75% or more, or 80% or more.
- the transmittance in the transmission mode may be about 100% or less, 95% or less, 90% or less, or 85% or less in another example.
- the upper limit is not particularly limited because the higher the transmittance in the transmission mode, the more advantageous.
- the transmittance of the optical modulation device in the blocking mode state is 60% or less, 55% or less, 50% or less, 45% or less, 40% or less, 35% or less, 30% or less, 25% or less, 20% or less, 15% or less , 10% or less or 5% or less.
- the transmittance in the blocking mode may be about 0% or more, 5% or more, 10% or more, 15% or more, 20% or more, or 25% or more.
- the lower the transmittance the more advantageous, so the lower limit of the transmittance in the blocking mode is not particularly limited.
- the transmittance may be, for example, a straight light transmittance.
- the straight light transmittance is a percentage of the ratio of the light transmitted in the same direction as the incident direction to the light incident on the device.
- the transmittance is defined as the percentage of light that has passed through the device in a direction parallel to the normal direction among the light incident in a direction parallel to the normal direction of the film or sheet surface.
- the transmittance is, respectively, the transmittance for any one wavelength within the visible light region, for example, about 400 to 700 nm or about 380 to 780 nm, the transmittance for the entire visible light region, or the transmittance for the entire visible light region It may be a maximum or minimum transmittance, or may be an average value of transmittance within the visible light region.
- the optical modulation device of the present application may be designed to be able to switch between any one state selected from the transmission mode and the blocking mode state and the other state in one example. If necessary, a third state or more state other than the above state may also be implemented.
- the switching of the optical modulation device may be controlled according to whether an external signal is applied, for example, an electrical signal such as a voltage is applied. For example, in a state in which the external signal is not applied, the optical modulation device may maintain any one of the states described above, and may be switched to another state when a voltage is applied. By changing the strength, frequency, and/or shape of the applied voltage, the state of the mode may be changed, or the third other mode state may be implemented.
- the optical modulation device of the present application may include two substrates disposed opposite to each other and an optical modulation layer positioned between the substrates.
- 2 is a diagram illustrating an example of the structure.
- the optical modulation device includes a first substrate 100 and a second substrate 200 disposed to face each other.
- the first and second substrates may each have a first surface and a second surface.
- the first surface may be one major surface of the substrate, and the second surface may mean a major surface opposite thereto.
- a functional layer is formed on one surface (eg, the first surface) of the first substrate 100, and a liquid crystal alignment film (eg, the first surface) on one surface (eg, the first surface) of the second substrate 200 2001) may be formed.
- the functional layer may be an adhesive layer or a pressure-sensitive adhesive layer, which will be described later.
- the light modulation layer 600 is positioned between the first substrate 100 and the second substrate 200 disposed to face each other.
- the type of the light modulation layer is not particularly limited, and a liquid crystal layer may be used as the light modulation layer.
- the light modulation layer is a liquid crystal layer
- a liquid crystal alignment layer is usually formed on both surfaces of the first and second substrates 100 and 200, but an adhesive layer or an adhesive layer is formed on the first substrate 100 instead of the liquid crystal alignment layer.
- the liquid crystal alignment layer is not formed on the first substrate.
- a spacer for maintaining a cell gap between the first and second substrates is present on any one of the first and second substrates of the optical modulation device, and the functionalities on the first substrate 100 are present.
- the layer is the pressure-sensitive adhesive layer or the adhesive layer 1001
- the pressure-sensitive adhesive layer or the adhesive layer 1001 is attached to the spacer to greatly improve the bonding force between the first and second substrates.
- the substrate a known substrate material may be used without particular limitation.
- an inorganic substrate such as a glass substrate, a crystalline or amorphous silicon substrate, or a quartz substrate, or a plastic substrate
- a plastic substrate examples include a triacetyl cellulose (TAC) substrate; COP (cyclo olefin copolymer) substrates such as norbornene derivative substrates; PMMA(poly(methyl methacrylate) substrate; PC(polycarbonate) substrate; PE(polyethylene) substrate; PP(polypropylene) substrate; PVA(polyvinyl alcohol) substrate; DAC(diacetyl cellulose) substrate; Pac(Polyacrylate) substrate; PES(polypropylene) substrate ether sulfone) substrate; PEEK (polyetheretherketon) substrate; PPS (polyphenylsulfone), PEI (polyetherimide) substrate; PEN (polyethylenemaphthatlate)
- TAC triacety
- an optically anisotropic film may be applied as the substrate.
- a film having such optical anisotropy is usually also anisotropic in mechanical properties, and it is possible to provide an optical modulation device having superior durability by utilizing such anisotropy.
- the anisotropic film may have an in-plane retardation of about 500 nm or more.
- the in-plane retardation is a value for light having a wavelength of 550 nm, and is a physical quantity defined by the following Equation A.
- the in-plane retardation of the retardation film is 600 nm or more, 700 nm or more, 800 nm or more, 900 nm or more, 1000 nm or more, 1100 nm or more, 1200 nm or more, 1300 nm or more, 1400 nm or more, 1500 nm or more , 2000 nm or more, 2500 nm or more, 3000 nm or more, 3500 nm or more, 4000 nm or more, 4500 nm or more, 5000 nm or more, 5500 nm or more, 6000 nm or more, 6500 nm or more, 7000 nm or more, 7500 nm or more, 8000 nm or more, 8500 nm or more, 9000 nm or more, or 9500 nm or less, 100000 nm or less, 90000 nm or less, 80000 nm or less, 70000 nm or less, 60000
- the specific kind of the film applicable to the substrate is not particularly limited as long as it exhibits an in-plane retardation within the above-mentioned range.
- an anisotropic polymer film to which optical anisotropy is imparted by stretching may be applied.
- the polymer film examples include a polyolefin film such as a polyethylene film or a polypropylene film, a cyclic olefin polymer (COP) film such as a polynorbornene film, a polyvinyl chloride film, a polyacrylonitrile film, a poly Cellulose ester-based polymer films such as sulfone films, polyacrylate films, PVA (poly(vinyl alcohol)) films or TAC (Triacetyl cellulose) films, polyester films or polycarbonate films, or two or more types of monomers forming the polymer A copolymer film of a monomer and the like can be exemplified.
- COP cyclic olefin polymer
- a polyester film such as a poly(ethylene terephthalate) (PET) film may be applied. That is, a film exhibiting the in-plane retardation in the above range is known in the industry, and in the case of a polymer film, such a film exhibits asymmetry in mechanical properties due to stretching in the manufacturing process, etc. as well as optically large anisotropy.
- a representative example of such a retardation film known in the art is a stretched polyester film, such as a stretched poly(ethylene terephthalate) (PET) film.
- a polyester film such as a PET film may be applied as the film, but it is not limited thereto to the type of film applicable as a substrate in the present application.
- in-plane retardation is a physical quantity according to Equation A below.
- Rin d ⁇ (nx - ny)
- Rin is the in-plane retardation
- nx is the refractive index in the slow axis direction of the film
- ny is the refractive index in the fast axis direction of the film
- d is the thickness of the film.
- the substrates When the anisotropic film is simultaneously applied to the first and second substrates, the substrates may be arranged such that their slow axes are parallel or perpendicular to each other.
- the light modulation layer present between the substrates is a functional layer capable of changing light transmittance, reflectivity, haze and/or color, alone or in conjunction with other components, depending on whether an external signal is applied.
- a light modulation layer may be referred to as an active light modulation layer in the present specification.
- an external signal is an external factor that may affect the behavior of a light modulation material (eg, liquid crystal compound) included in the light modulation layer (eg, liquid crystal layer), for example, voltage, etc. It may mean an electrical signal. Accordingly, the state in which there is no external signal may mean a state in which no electrical signal is applied from the outside. The state in which there is no external signal may be referred to as an initial state.
- the type of the light modulation layer is not particularly limited as long as it has the above-described function, and a known light modulation layer may be applied.
- the light modulation layer may be, for example, a liquid crystal layer, an electrochromic material layer, a photochromic material layer, an electrophoretic material layer, or a dispersed particle alignment layer.
- the liquid crystal layer may be applied as the light modulation layer.
- a liquid crystal layer is a layer containing a liquid crystal compound.
- the scope of the term liquid crystal layer includes all layers containing a liquid crystal compound, for example, a so-called guest host layer containing a liquid crystal compound (liquid crystal host) and a dichroic dye, or other additives such as a chiral dopant, a liquid crystal compound
- the layer included together with is also a kind of liquid crystal layer defined in this specification.
- the liquid crystal layer may include a liquid crystal compound formed such that an alignment direction is changed according to whether an external signal is applied.
- any kind of liquid crystal compound may be used as long as its alignment direction can be changed by application of an external signal.
- liquid crystal compound a smectic liquid crystal compound, a nematic liquid crystal compound, or a cholesteric liquid crystal compound may be used.
- the liquid crystal compound may be, for example, a compound that does not have a polymerizable group or a crosslinkable group, or a compound that exists in a non-polymerized and cross-linked state even if it does, so that the alignment direction can be changed by the application of an external signal. .
- the liquid crystal layer may include a liquid crystal compound having a positive or negative dielectric anisotropy.
- the absolute value of the dielectric anisotropy of the liquid crystal may be appropriately selected in consideration of the purpose of the present application.
- the term “dielectric anisotropy ( ⁇ )” may mean a difference ( ⁇ // - ⁇ ) between a horizontal dielectric constant ( ⁇ //) and a vertical dielectric constant ( ⁇ ) of a liquid crystal.
- the term horizontal permittivity ( ⁇ //) refers to a dielectric constant value measured along the direction of the electric field in a state in which a voltage is applied so that the direction of the electric field by the applied voltage and the director of liquid crystal molecules is substantially horizontal
- the perpendicular permittivity ⁇ refers to a dielectric constant value measured along the direction of the electric field in a state in which a voltage is applied so that the direction of the electric field by the applied voltage is substantially perpendicular to the direction of the liquid crystal molecules.
- the refractive index anisotropy ( ⁇ n) of the liquid crystal layer may be in the range of 0.01 to 0.5.
- the refractive index anisotropy is 0.02 or more, 0.03 or more, 0.04 or more, 0.05 or more, 0.06 or more, 0.07 or more, 0.08 or more, or 0.085 or more, or 0.45 or less, 0.4 or less, 0.35 or less, 0.3 or less, 0.25 or less, 0.2 or less, It may be about 0.15 or less or 0.1 or less.
- the refractive index anisotropy of the liquid crystal layer is selected according to the purpose and is not limited thereto.
- the driving mode of the liquid crystal layer is, for example, DS (Dynamic Scattering) mode, ECB (Electrically Controllable Birefringence) mode, IPS (In-Plane Switching) mode, FFS (Fringe-Field Switching) mode, OCB (Optially Compensated Bend) mode.
- VA Vertical Alignment
- MVA Multi-domain Vertical Alignment
- PVA Powerned Vertical Alignment
- HAN Hybrid Aligned Nematic
- TN Transmission Nematic
- STN Super Twisted Nematic
- R-TN Reversed Twisted Nematic
- the liquid crystal layer of the present application may be designed (formed) to implement at least a twisted orientation in the above modes.
- the twisted alignment refers to a state in which the liquid crystal compounds in the liquid crystal layer are aligned in a twisted form based on an imaginary spiral axis. It can be implemented in a state or spray oriented state. In addition, the twisted alignment may be implemented in the initial state of the liquid crystal layer or may be implemented in a state to which an external signal is applied.
- the liquid crystal layer may be designed (formed) to be able to switch between at least a vertical alignment state and the twisted alignment state.
- any one of the two states may be implemented in an initial state or switched to another state when an external signal (eg, an electrical signal such as a voltage) is applied.
- the vertical alignment state may be implemented in the initial state.
- the optical modulation device of the present application may be designed so that the alignment state (particularly, the vertical alignment state) of the liquid crystal layer as described above can be stably maintained even at a high temperature.
- first and second substrates each having a first surface and a second surface, the first and second substrates facing each other to face each other; and a liquid crystal layer present between the first and second substrates may satisfy Equation 1 below.
- T 1 is the initial transmittance measured after vertically aligning the liquid crystal layer and placing it between orthogonal polarizers
- T 2 is the T 1 at 100° C. in a state in which the liquid crystal layer showing the transmittance is vertically aligned. This is the transmittance measured after holding for 5 minutes and placing it between the orthogonal polarizers.
- the unit of T 1 and T 2 is %.
- the initial transmittance T 1 is measured at room temperature, and the transmittance T2 is measured while maintaining the temperature at 100° C. as it is after maintaining it at 100° C. for 5 minutes.
- the measurement wavelengths of the transmittances T1 and T2 are visible light wavelengths (380 nm to 770 nm).
- 1 is a view showing a process of confirming the T 1 and T 2 .
- the transmittances T 1 and T 2 may be measured while the liquid crystal layer or the light modulation device 200 is positioned between the two orthogonal polarizers 101 and 102 .
- the transmittance is the transmittance measured from the other polarizer 102 after light is incident on one of the two orthogonal polarizers 101 and 102 (in the direction of the arrow in FIG. 1 ). to be.
- the orthogonal polarizer means a state in which the light absorption axes of the two polarizers are perpendicular to each other.
- the transmittance is measured while the light absorption axis of one of the two polarizers is fixed and the light absorption axis of the other polarizer is rotated with respect to the light absorption axis, the point at which the lowest transmittance appears is the light of the two polarizers.
- the absorption axes are considered to be perpendicular to each other.
- T 1 is displayed as a very low value.
- T 2 measured above is higher than T 1 .
- the slow axis of the substrate is parallel to the light absorption axis of any one of the two polarizers placed to do
- T 2 may be 3 times or less (3 ⁇ T 1 or less) of T 1 . .
- T 2 is 2.5 times or less of T 1 (2.5 ⁇ T 1 or less), 2 times or less of T 1 (2 ⁇ T 1 or less), 1.5 times or less of T 1 (1.5 ⁇ T 1 or less), or T It may be about 1 time or less (T 1 or less).
- the lower limit of T 2 is not particularly limited, and in one example, 0.5 times or more of T 1 (0.5 ⁇ T 1 or more), 0.7 times or more of T 1 (0.7 ⁇ T 1 or more), or 0.9 times or more of T 1 (0.9 ⁇ T 1 or more). In one example, T 1 and T 2 may be substantially the same.
- T 2 is not particularly limited, but may be about 2% or less in one example. In another example, T 2 may be 1.8% or less, 1.6% or less, 1.4% or less, 1.2% or less, 1% or less, 0.8% or less, 0.6% or less, 0.4% or less, or 0.2% or less.
- the lower limit of T 2 is not limited, for example, T 2 may be 0% or more.
- the light modulation layer which is a liquid crystal layer, basically includes the liquid crystal compound, and may also include additional components if necessary.
- the liquid crystal layer as the light modulation layer may include a so-called chiral dopant together with the liquid crystal compound.
- a chiral dopant may induce the orientation of the helical structure in the liquid crystal compound, that is, the twisted orientation.
- the chiral dopant is not particularly limited and may be used as long as it can induce a desired twisting without impairing liquid crystallinity, for example, nematic regularity.
- the chiral dopant for inducing rotation in the liquid crystal molecules needs to include at least chirality in the molecular structure.
- a chiral dopant is, for example, a compound having one or two or more asymmetric carbons, a compound having an asymmetric point on a heteroatom such as a chiral amine or a chiral sulfoxide, or cumulene ) or a compound having an axially asymmetric, optically active site having an axial agent such as binaphthol may be exemplified.
- the chiral dopant may be, for example, a low molecular weight compound having a molecular weight of 1,500 or less.
- a commercially available chiral nematic liquid crystal for example, a chiral dopant liquid crystal S811 commercially available from Merck or LC756 from BASF may be applied.
- the ratio of the chiral dopant there is no particular limitation on the ratio of the chiral dopant, but the ratio of the thickness (d, cell gap) of the light modulation layer and the pitch of the helical structure of the liquid crystal compound (pitch of the twisted orientation) generated by the addition of the chiral dopant (p) (d/p) may be added to satisfy the K value to be described later.
- the pitch (p) of the so-called twist-oriented optical modulation layer (liquid crystal layer) to which the chiral dopant is applied can be measured by a measurement method using a wedge cell, and a Simple method for accurate measurements of the cholesteric pitch using a D.Podolskyy et al. It can be measured by the method described in the stripe-wedge Grandjean-Cano cell (Liquid Crystals, Vol. 35, No. 7, July 8 ⁇ 2008, 789-791).
- the content (wt%) of the chiral dopant is calculated by the formula of 100/(Helixcal Twisting power (HTP) ⁇ pitch (nm), and may be selected at an appropriate ratio in consideration of the desired pitch (p).
- a ratio (d/p) of a pitch (p) of the twisted alignment and a thickness (d, cell) of the light modulation layer (liquid crystal layer) may be designed to be less than 1.
- the ratio (d/p) is 0.95 or less, 0.9 or less, 0.85 or less, 0.8 or less, 0.75 or less, 0.7 or less, 0.65 or less, 0.6 or less, 0.55 or less, 0.5 or less, 0.45 or less, 0.4 or less, 0.35 or less, 0.3 or less, 0.25 or less, or 0.2 or less, or 0.1 or more, 0.15 or more, 0.2 or more, 0.25 or more, 0.3 or more, 0.35 or more, 0.4 or more, 0.45 or more, or 0.5 or more.
- the liquid crystal layer may be designed so that the pitch (p) of the twisted alignment is in the range of 1 to 100 ⁇ m.
- the ratio is 2 ⁇ m or more, 3 ⁇ m or more, 4 ⁇ m or more, 5 ⁇ m or more, 6 ⁇ m or more, 7 ⁇ m or more, 8 ⁇ m or more, 9 ⁇ m or more, 10 ⁇ m or more, 11 ⁇ m or more, 12 ⁇ m or more, 13 or more, 14 ⁇ m or more, 15 ⁇ m or more, 16 ⁇ m or more, 17 ⁇ m or more, 18 ⁇ m or more, 19 ⁇ m or more, or 19.5 ⁇ m or more, or 95 ⁇ m or less, 90 ⁇ m or less, 85 ⁇ m or less, 80 ⁇ m or less, 75 ⁇ m or less, 70 ⁇ m or less, 65 ⁇ m or less, 60 ⁇ m or less, 55 ⁇ m or less, 50 ⁇ m or less, 45 ⁇ m or less, 40 ⁇ m or less, 35
- the thickness (d, cell gap) of the liquid crystal layer may be in the range of 0.5 ⁇ m to 50 ⁇ m.
- the thickness (d, cell gap) is, in another example, 1 ⁇ m or more, 1.5 ⁇ m or more, 2 ⁇ m or more, 2.5 ⁇ m or more, 3 ⁇ m or more, or 3.5 ⁇ m or more, 4 ⁇ m or more, 4.5 ⁇ m or more, 5 ⁇ m or more, 5.5 or more, 6 ⁇ m or more, 6.5 ⁇ m or more, 7 ⁇ m or more, 7.5 ⁇ m or more, 8 ⁇ m or more, 8.5 ⁇ m or more, 9 ⁇ m or more, 9.5 ⁇ m or more, or 10 ⁇ m or more, 48 ⁇ m or less, 46 ⁇ m or less, 44 ⁇ m or less, 42 ⁇ m or less, 30 ⁇ m or less, 38 ⁇ m or less, 36 ⁇ m or less, 34 ⁇ m or less, 32 ⁇ m or less, 30 ⁇ m or less
- the light modulation layer may contain other necessary additional components (eg, dichroic dye, etc.).
- the type of the pressure-sensitive adhesive layer or the adhesive layer is not particularly limited, but a compound represented by the following formula (1) (hereinafter referred to as a silicon compound)
- a silicone-based pressure-sensitive adhesive layer or a silicone-based adhesive layer may be applied.
- various types of silicone-based adhesives or silicone-based adhesives known in the industry as so-called Optically Clear Adhesive (OCA) or Optical Clear Resin (OCR) exist, and these adhesives or adhesives are liquid crystal in a state containing a silicon compound to be described later. In combination with the alignment film, it is possible to induce a suitable alignment of the liquid crystal compound.
- the unique surface properties of the silicone pressure-sensitive adhesive or adhesive containing the silicon compound may be combined with a liquid crystal alignment layer (particularly, a vertical alignment layer) to induce an alignment state of the liquid crystal compound suitable for the purpose.
- a cured product of a curable silicone adhesive or a pressure-sensitive adhesive composition (hereinafter, may simply be referred to as a curable silicone composition) may be used.
- the type of the curable silicone composition is not particularly limited, and, for example, a heat-curable silicone composition or an ultraviolet-curable silicone composition may be used.
- the curable silicone composition is an addition curable silicone composition, (1) an organopolysiloxane containing two or more alkenyl groups in a molecule and (2) an organopolysiloxane containing two or more silicon-bonded hydrogen atoms in a molecule may include
- the silicone compound as described above can form a cured product by addition reaction in the presence of a catalyst such as a platinum catalyst.
- the (1) organopolysiloxane contains at least two alkenyl groups in one molecule as a main component constituting the cured silicone product.
- specific examples of the alkenyl group include a vinyl group, an allyl group, a butenyl group, a pentenyl group, a hexenyl group, or a heptenyl group, among which a vinyl group is usually applied, but is not limited thereto.
- the bonding position of the above-described alkenyl group is not particularly limited.
- the alkenyl group may be bonded to the end of the molecular chain and/or to the side chain of the molecular chain.
- the types of substituents that may be included in addition to the above-described alkenyl include an alkyl group such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, or a heptyl group; Aryl groups, such as a phenyl group, a tolyl group, a xylyl group, or a naphthyl group; an aralkyl group such as a benzyl group or a phenentyl group; and a halogen-substituted alkyl group such as a chloromethyl group, a 3-chloropropyl group, or a 3,3,3-trifluoropropyl group, and among these, a methyl group or a phenyl group is usually applied, but is not limited thereto.
- the molecular structure of the (1) organopolysiloxane is not particularly limited, and for example, it may have any shape, such as linear, branched, cyclic, networked, or partially branched linear. In general, those having a linear molecular structure among the molecular structures described above are generally applied, but the present invention is not limited thereto.
- organopolysiloxane examples include dimethylsiloxane-methylvinylsiloxane copolymer blocking trimethylsiloxane groups at both ends of the molecular chain, methylvinylpolysiloxane blocking both ends of the molecular chain, and trimethylsiloxane group blocking at both ends of the molecular chain Dimethylsiloxane-methylvinylsiloxane-methylphenylsiloxane copolymer, blocking dimethylvinylsiloxane groups at both ends of the molecular chain dimethylpolysiloxane, blocking dimethylvinylsiloxane groups at both ends of the molecular chain Methylvinylpolysiloxane, blocking dimethylvinylsiloxane groups at both ends of the molecular chain dimethylsiloxane-methyl Vinylsiloxane copolymer, dimethylvinylsiloxane group blocking at both ends of molecular chain
- R 1 is a hydrocarbon group other than the alkenyl group, specifically, an alkyl group such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, or a heptyl group;
- Aryl groups such as a phenyl group, a tolyl group, a xylyl group, or a naphthyl group; an aralkyl group such as a benzyl group or a phenentyl group; It may be a halogen-substituted alkyl group such as a chloromethyl group, a 3-chloropropyl group, or a 3,3,3-trifluoropropyl group.
- R 2 is an alkenyl group, and specifically, may be a vinyl group, an allyl group, a butenyl group, a pentenyl group, a hexenyl group, or a heptenyl group.
- the organopolysiloxane may serve to crosslink the (1) organopolysiloxane.
- the bonding position of the hydrogen atom is not particularly limited, and, for example, may be bonded to the terminal and/or side chain of the molecular chain.
- the types of substituents that may be included in addition to the silicon-bonded hydrogen atoms are not particularly limited, and for example, as mentioned in (1) organopolysiloxane, an alkyl group, an aryl group, and an aralkyl group or a halogen-substituted alkyl group, and among these, a methyl group or a phenyl group is usually applied, but is not limited thereto.
- the molecular structure of the (2) organopolysiloxane is not particularly limited, and for example, may have any shape, such as linear, branched, cyclic, network, or partially branched linear. Among the molecular structures described above, those having a linear molecular structure are usually applied, but the present invention is not limited thereto.
- organopolysiloxane More specific examples of the (2) organopolysiloxane include methylhydrogenpolysiloxane blocking trimethylsiloxane groups at both ends of the molecular chain, dimethylsiloxane-methylhydrogen copolymer blocking trimethylsiloxane groups at both ends of the molecular chain, and trimethylsiloxane groups at both ends of the molecular chain Blocking dimethylsiloxane-methylhydrogensiloxane-methylphenylsiloxane copolymer, blocking dimethylhydrogensiloxane groups at both ends of the molecular chain Dimethylpolysiloxane, blocking dimethylhydrogensiloxane groups at both ends of the molecular chain Dimethylsiloxane-methylphenylsiloxane copolymer, dimethyl at both ends of the molecular chain
- R 1 is a hydrocarbon group other than the alkenyl group, specifically, an alkyl group such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, or a heptyl group;
- Aryl groups such as a phenyl group, a tolyl group, a xylyl group, or a naphthyl group; an aralkyl group such as a benzyl group or a phenentyl group; It may be a halogen-substituted alkyl group such as a chloromethyl group, a 3-chloropropyl group, or a 3,3,3-trifluoropropyl group.
- the content of the (2) organopolysiloxane is not particularly limited as long as it is included to the extent that appropriate curing can be achieved.
- the (2) organopolysiloxane may be contained in an amount such that the number of silicon-bonded hydrogen atoms is 0.5 to 10 with respect to one alkenyl group included in the aforementioned (1) organopolysiloxane. In this range, curing can be sufficiently advanced and heat resistance can be secured.
- the addition-curable silicone composition may further include platinum or a platinum compound as a catalyst for curing.
- platinum or a platinum compound as a catalyst for curing.
- the specific kind of platinum or the platinum compound is not particularly limited.
- the ratio of the catalyst may also be adjusted to a level at which proper curing can be achieved.
- the addition-curable silicone composition may also contain an appropriate additive required from the viewpoint of storage stability, handleability and workability improvement in an appropriate ratio.
- the silicone composition is a condensation-curable silicone composition, for example, (a) an alkoxy group-containing siloxane polymer; and (b) a hydroxyl group-containing siloxane polymer.
- the (a) siloxane polymer may be, for example, a compound represented by the following formula (I).
- R 1 and R 2 each independently represent a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group
- R 3 represents an alkyl group
- a and b each independently represent a number greater than or equal to 0 and less than 1
- a+b represents a number greater than 0 and less than 2
- c represents a number greater than 0 and less than 2
- d represents a number greater than 0 and less than 4
- a+b+c ⁇ 2+d is 4.
- the monovalent hydrocarbon may be, for example, an alkyl group having 1 to 8 carbon atoms, a phenyl group, a benzyl group, or a tolyl group, and in this case, the alkyl group having 1 to 8 carbon atoms includes a methyl group, an ethyl group, a propyl group, It may be an isopropyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, or an octyl group.
- the monovalent hydrocarbon group may be substituted with a known substituent such as, for example, a halogen, an amino group, a mercapto group, an isocyanate group, a glycidyl group, a glycidoxy group, or a ureido group.
- a known substituent such as, for example, a halogen, an amino group, a mercapto group, an isocyanate group, a glycidyl group, a glycidoxy group, or a ureido group.
- examples of the alkyl group for R 3 include a methyl group, an ethyl group, a propyl group, an isopropyl group, or a butyl group.
- alkyl groups a methyl group or an ethyl group is usually applied, but is not limited thereto.
- the hydroxyl group may remain
- the siloxane polymer (a) can be produced, for example, by hydrolyzing and condensing polyfunctional alkoxysilane or polyfunctional chlorosilane.
- An average person skilled in the art can easily select an appropriate polyfunctional alkoxysilane or chlorosilane according to the desired (a) siloxane polymer, and the conditions of hydrolysis and condensation reaction using the same can also be easily controlled.
- an appropriate monofunctional alkoxysilane may be used in combination according to the purpose.
- siloxane polymer (a) commercially available organosiloxanes such as X40-9220 or X40-9225 from Shin-Etsu Silicone, XR31-B1410, XR31-B0270 or XR31-B2733 from GE Toray Silicone, etc. Polymers may be used.
- (b) hydroxyl group-containing siloxane polymer contained in the condensation-curable silicone composition for example, a compound represented by the following formula (II) can be used.
- R 4 and R 5 each independently represent a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group, and when a plurality of R 5 and R 6 are present, they may be the same or different from each other. and n represents an integer of 5 to 2,000.
- specific types of the monovalent hydrocarbon group include, for example, the same hydrocarbon group as in the case of the formula (I).
- the siloxane polymer (b) can be produced, for example, by hydrolyzing and condensing dialkoxysilane and/or dichlorosilane.
- a person skilled in the art can easily select an appropriate dialkoxy silane or dichloro silane according to the desired (b) siloxane polymer, and the conditions of hydrolysis and condensation reaction using the same can also be easily controlled.
- the siloxane polymer (b) as described above for example, a commercially available bifunctional organosiloxane polymer such as XC96-723, YF-3800, YF-3804 manufactured by GE Toray Silicones can be used.
- the addition curing type or condensation curing type silicone composition described above is one example of a material for forming the silicone pressure-sensitive adhesive or adhesive applied in the present application. That is, basically any silicon adhesive or adhesive known as OCA or OCR in the industry may be applied in the present application.
- the type of the pressure-sensitive adhesive or adhesive or the curable composition forming the same is not particularly limited and may be appropriately selected depending on the intended use.
- a solid, semi-solid or liquid pressure-sensitive adhesive or adhesive or curable composition may be used.
- the solid or semi-solid pressure-sensitive adhesive or adhesive or curable composition may be cured before the bonding object is bonded.
- the liquid pressure-sensitive adhesive or adhesive or curable composition is so-called optical clear resin (OCR), and may be cured after the bonding object is bonded.
- a so-called polydimethyl siloxane-based pressure-sensitive adhesive or adhesive or curable composition or polymethylvinyl siloxane-based pressure-sensitive adhesive or adhesive or curable composition or alkoxy Alkoxy silicone-based adhesive or adhesive or curable composition may be used, but is not limited thereto.
- the silicone pressure-sensitive adhesive layer or the adhesive layer contains a specific silicon compound.
- a specific silicon compound As the silicon compound, a compound having three or more substituents represented by the following Chemical Formula 1 may be applied. Such a compound can effectively form and maintain the alignment of the liquid crystal compound by controlling the surface properties of the silicone pressure-sensitive adhesive layer or the adhesive layer, and the alignment can be stably maintained even under high-temperature conditions.
- R 1 to R 3 are each independently a hydrogen atom or an alkyl group, and at least two of R 1 to R 3 may be an alkyl group.
- * means that the corresponding site is connected.
- the alkyl group may be a linear, branched or cyclic alkyl group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms. Such an alkyl group may be optionally substituted with one or more substituents, or may be an unsubstituted alkyl group.
- the alkyl group of Formula 1 may be a straight or branched chain alkyl group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms, or a straight chain alkyl group.
- any one of R 1 to R 3 in Formula 1 may be a hydrogen atom, and the other two may be the alkyl group.
- any one of R 1 to R 3 in Formula 1 is a hydrogen atom, and the other two have 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms. It may be a straight-chain or branched-chain alkyl group, or a straight-chain alkyl group, and such an alkyl group may be optionally substituted with one or more substituents or may be an unsubstituted alkyl group.
- the compound having three or more substituents of Formula 1 has 3 to 10, 3 to 9, 3 to 8, 3 to 7, 3 to 6, 3 substituents of Formula 1 to 5 or 3 to 4 may be included.
- R 4 to R 7 are each independently hydrogen, an alkyl group, or a substituent of Formula 1, but three or more or all of R 4 to R 7 are a substituent of Formula 1 above.
- the alkyl group may be a linear, branched or cyclic alkyl group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms. Such an alkyl group may be optionally substituted with one or more substituents, or may be an unsubstituted alkyl group.
- the alkyl group of Formula 2 may be a straight or branched chain alkyl group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms, or a straight chain alkyl group.
- the ratio of the compound (silicon compound) having three or more substituents of Formula 1 in the silicone pressure-sensitive adhesive layer or the adhesive layer is not particularly limited, but the ratio may be adjusted within the range of 1 to 50% by weight.
- the ratio is 2% by weight or more, 3% by weight or more, 4% by weight or more, 5% by weight or more, 6% by weight or more, 7% by weight or more, 8% by weight or more, 9% by weight or more, 10% by weight or more in another example.
- the compound (silicon compound) having a substituent of Formula 1 may be selected and applied so that the K value according to Equation 1 below is 2 ⁇ m or more.
- Equation 1 A is a value determined by Equation 2 below, B is the number of substituents of Formula 1 included in the compound (silicon compound) having three or more substituents of Formula 1, D is a silicone pressure-sensitive adhesive layer or adhesive is the thickness of the layer. In the above, the unit of the thickness (D) of the silicone pressure-sensitive adhesive layer or the adhesive layer is ⁇ m.
- Equation 2 S is the weight of the compound (silicon compound) having three or more substituents of Formula 1 included in the silicone pressure-sensitive adhesive layer or adhesive layer, and O is the pressure-sensitive adhesive layer except for the compound having three or more substituents of Formula 1 or the weight of the adhesive layer.
- Various units may be used as the unit of weight of S and O as long as they are the same, but g is generally applied.
- the K value of Equation 1 may be 2.5 or more or 3 or more, or 10 or less, 9 or less, 8 or less, 7 or less, 6 or less, 5 or less, or 4.5 or less. Within this range, the desired alignment and high-temperature alignment stability of the liquid crystal compound may be more stably secured.
- A may be, for example, in the range of 0.01 to 0.5.
- A is 0.02 or more, 0.03 or more, 0.04 or more, 0.05 or more, 0.06 or more, 0.07 or more, 0.08 or more, 0.09 or more, 0.10 or more, 0.11 or more, 0.12 or more, 0.13 or more, 0.14 or more, or 0.15 or more, or 0.49 or more.
- the desired alignment property and high temperature stability of the liquid crystal compound can be more effectively secured. Within this range, the desired alignment and high-temperature alignment stability of the liquid crystal compound may be more stably secured.
- the thickness of the silicone pressure-sensitive adhesive layer or the adhesive layer may be, for example, in the range of 0.5 ⁇ m to 50 ⁇ m.
- the thickness (d, cell gap) is, in another example, 1 ⁇ m or more, 1.5 ⁇ m or more, 2 ⁇ m or more, 2.5 ⁇ m or more, 3 ⁇ m or more, or 3.5 ⁇ m or more, 4 ⁇ m or more, 4.5 ⁇ m or more, 5 ⁇ m or more, 5.5 or more, 6 ⁇ m or more, 6.5 ⁇ m or more, 7 ⁇ m or more, 7.5 ⁇ m or more, 8 ⁇ m or more, 8.5 ⁇ m or more, 9 ⁇ m or more, 9.5 ⁇ m or more, or 10 ⁇ m or more, 48 ⁇ m or less, 46 ⁇ m or less, 44 ⁇ m or less, 42 ⁇ m or less, 30 ⁇ m or less, 38 ⁇ m or less, 36 ⁇ m or less, 34 ⁇ m or less, 32 ⁇
- the liquid crystal alignment layer may not be formed on the first substrate.
- the kind of liquid crystal aligning film that can be formed on the first surface of the second substrate in the light modulation device.
- the alignment layer a known vertical or horizontal alignment layer or other alignment layer may be applied in consideration of a desired initial alignment.
- a contact alignment layer such as a rubbing alignment layer or a non-contact alignment layer such as a photo alignment layer may be applied.
- a vertical alignment layer may be used as the alignment layer.
- a combination of the vertical alignment layer and the aforementioned pressure-sensitive adhesive layer or adhesive layer may induce an alignment state of a liquid crystal compound suitable for various uses.
- the initial alignment of the liquid crystal compound which is formed by the liquid crystal alignment layer and/or the pressure-sensitive adhesive layer or the adhesive layer and the liquid crystal alignment layer in the liquid crystal layer as the light modulation layer, may be a vertical alignment, a horizontal alignment, an inclined alignment, or a spray alignment.
- the liquid crystal compound may be twisted in the vertical alignment, horizontal alignment, oblique alignment state, or spray alignment state to exist in the twisted alignment or cholesteric alignment state, or may not.
- the initial alignment refers to the alignment of the liquid crystal compound in the initial state described above.
- the meaning of the horizontal orientation, oblique orientation, vertical orientation or spray orientation is as known in the art.
- the liquid crystal compound of the light modulation layer maintains the horizontal alignment, the inclined alignment, the vertical alignment, or the spray alignment in the initial state, and may be changed to a different alignment state according to an external signal.
- the initial alignment of the liquid crystal compound in the light modulation layer may be a vertical alignment or an alignment state similar to the vertical alignment, and the twisted alignment may be implemented when an external signal is applied.
- Such an alignment state is obtained by applying a vertical alignment film as the liquid crystal alignment film.
- Such an orientation is useful in a device implementing a so-called R-TN (Reversed Twisted Nematic) orientation.
- the in-plane retardation (based on a wavelength of 550 nm) of the optical modulation layer in the vertical alignment or in an alignment state similar to the vertical alignment is, for example, about 30 nm or less, 25 nm or less, 20 nm or less, 15 nm or less, 10 nm or less, or 5 nm or less, 0 nm or more, or more than 0 nm.
- Equation A The in-plane retardation is obtained according to Equation A.
- nx, ny, and d in Equation A are the slow-axis direction refractive index, the fast-axis direction refractive index, and the thickness of the light modulation layer, respectively.
- the light modulation device may further include a spacer for maintaining a spacer between the first and second substrates.
- the spacer is a commonly applied spacer, and a ball spacer, a column spacer, a partition wall spacer, or a combination of two or more of the above may be applied.
- the barrier rib spacer may be used as the spacer, and in particular, the barrier rib spacer in which the barrier ribs form at least one closed shape may be applied.
- a hexagon eg, a regular hexagon
- a quadrangle eg, a square or a rectangle
- the barrier rib spacer in which the closed shape is a hexagon, particularly a regular hexagon, is also called a so-called honeycomb type spacer.
- the honeycomb or quadrangular barrier rib spacer is a case in which the shape formed by the barrier rib spacer is a honeycomb or quadrangle when the shape of the barrier rib spacer formed on the substrate is observed in the normal direction of the substrate. it means.
- the honeycomb type is usually a combination of a regular hexagon, and in the case of a quadrangle, there may be a square, a rectangle, or a combination of a square and a rectangle.
- a barrier rib spacer may be used as the spacer in consideration of the adhesion between the first and second substrates, but is not limited thereto.
- the pitch of the spacers may also be appropriately selected in consideration of a desired adhesion force or cell gap maintenance efficiency.
- the pitch of the barrier rib spacer when the barrier rib spacer is applied, the pitch of the barrier rib spacer may be in the range of 50 ⁇ m to 2,000 ⁇ m.
- a method of obtaining the pitch in the partition wall spacer is known.
- the pitch is obtained through the spacing between the sides facing in the hexagon constituting the honeycomb, and the pitch is obtained through the length of the sides of the rectangle in the case of the rectangular spacer.
- the average value thereof may be defined as the pitch.
- the area of the closed figure ie, an area of, for example, a hexagon or a square
- the area is an arithmetic mean.
- the line width of the barrier rib spacer for example, the width of each hexagonal or quadrangular wall constituting the honeycomb may be, for example, in the range of about 5 ⁇ m to 50 ⁇ m. In another example, the line width may be about 10 ⁇ m or more or 15 ⁇ m or more, or 45 ⁇ m or less, 40 ⁇ m or less, 35 ⁇ m or less, 30 ⁇ m or less, 25 ⁇ m or less, or 20 ⁇ m or less.
- the cell gap is properly maintained, and the adhesion between the substrates can be maintained excellently.
- the combination with the barrier rib spacer can provide excellent adhesion between the substrates.
- An electrode layer may be formed on each substrate of the light modulation device as a component for applying an external signal to the light modulation layer.
- the first surface and the functional layer between the liquid crystal alignment film, the pressure-sensitive adhesive or the adhesive layer (between 100 and 1001 in FIG. 2)
- the first surface and the liquid crystal alignment film in the second substrate An electrode layer may be present between (between 200 and 2001 in FIG. 2 ) (between the spacer and the alignment layer when a spacer is present).
- the electrode layer is formed between the first surface of the second substrate and the spacer and alignment film. can be located between
- a known transparent electrode layer may be applied.
- a so-called conductive polymer layer, a conductive metal layer, a conductive nanowire layer, or a metal oxide layer such as ITO (Indium Tin Oxide) may be used as the electrode layer.
- ITO Indium Tin Oxide
- various materials and methods for forming the transparent electrode layer are known and can be applied without limitation.
- the light modulation device basically includes the light modulation device, and may include additional other components as needed. That is, the above-described transmission, blocking, high reflection and/or low reflection modes can be implemented and switched between the above-described transmission, blocking, high reflection and/or low reflection modes even with the light modulation device alone depending on the driving mode. The inclusion of a configuration is also possible.
- the device may further include a polarization layer (passive polarization layer) disposed on one side or both sides of the light modulation device.
- a polarization layer passive polarization layer
- 3 is an example of the structure, in which the polarization layer 400 is disposed only on one surface of the light modulation device in the structure of FIG. 2, and FIG. 4 shows the polarization layer 400 on both surfaces of the light modulation device in the structure of FIG. This is the case where it is placed.
- the partition wall spacer is applied as a spacer and has a rectangular shape (square or rectangular), it is appropriate that the sides of the rectangle and the absorption axis of the polarizing layer are substantially perpendicular or horizontal to each other.
- the term polarization layer may refer to a device that converts natural light or unpolarized light into polarized light.
- the polarization layer may be a linear polarization layer.
- the linear polarization layer refers to a case in which selectively transmitted light is linearly polarized light vibrating in one direction, and selectively absorbed or reflected light is linearly polarized light vibrating in a direction orthogonal to the vibration direction of the linearly polarized light. That is, the linear polarization layer may have a transmission axis and an absorption axis or a reflection axis orthogonal to each other in a plane direction.
- the polarization layer may be an absorption type polarization layer or a reflection type polarization layer.
- absorption-type polarizing layer for example, a polarizing layer in which iodine is dyed on a polymer stretched film, such as a PVA (poly(vinyl alcohol)) stretched film, or a liquid crystal polymerized in an aligned state as a host, and the liquid crystal
- a guest-host type polarizing layer having a dichroic dye arranged according to orientation as a guest may be used, but is not limited thereto.
- a reflective polarizing layer for example, a reflective polarizing layer known as a so-called DBEF (Dual Brightness Enhancement Film) or a reflective polarizing layer formed by coating a liquid crystal compound such as LLC (Lyotropic liquid crystal) may be used.
- DBEF Double Brightness Enhancement Film
- LLC Lithotropic liquid crystal
- the polarization layer may be disposed on both sides of the light modulation device.
- the angle formed by the transmission axes of the polarizing layers disposed on both sides may be within the range of 85 degrees to 95 degrees or approximately vertical.
- the optical device may be configured without including a polarization layer.
- an optical device may be constructed without applying a polarizing layer after blending a dichroic dye as an additional component in the liquid crystal layer.
- the light modulation device may include other necessary components in addition to the above components.
- the light modulation device may further include an optically anisotropic film satisfying the refractive index relationship of Equation 3 below.
- Such a film may further improve the performance of the device by optically compensating for the substrate or the light modulation layer.
- ny is a refractive index with respect to a wavelength of 550 nm in the fast axis direction of the optically anisotropic film
- nz is a refractive index with respect to a wavelength of 550 nm in the thickness direction of the optically anisotropic film.
- optically anisotropic film satisfying the relationship of Equation 3 is a film exhibiting the properties of a so-called negative C plate.
- the retardation in the thickness direction of the optically anisotropic film may be, for example, in a range of less than 0 nm to -600 nm or more based on a wavelength of 550 nm.
- the optically anisotropic film may exist in one layer or two or more layers in the optical device, and the thickness direction retardation is the thickness direction retardation of the film of the one layer when there is one optically anisotropic film layer, two or more layers When it exists, it is the sum total of thickness direction retardation of a mode film.
- the thickness direction retardation is a physical quantity determined by Equation 4 below.
- Rin d ⁇ (nz - ny)
- Equation 4 Rth is the thickness direction retardation, nz is the thickness direction refractive index of the film, ny is the fast axis direction refractive index of the film, and d is the thickness of the film.
- the meaning of the thickness direction and the fast axis is known in the art.
- optically anisotropic film as a known retardation film, a film satisfying Equation 3 can be applied, and as this type of film in the industry, for example, a stretched polymer film or a liquid crystal film is variously known. .
- the optically anisotropic film may be present on the first and/or second substrate, for example, formed on the first surface of the first and/or second substrate.
- the optically anisotropic film may be present between the first and/or second substrate and the light modulation layer, and a liquid crystal alignment film, the pressure-sensitive adhesive layer, or an adhesive layer (liquid crystal alignment film, etc.) is formed on the first surface. It may be formed between the first and/or second substrate and the liquid crystal alignment layer, etc., and when an electrode layer is formed on the first surface, it may be formed between the first and/or second substrate and the electrode layer. .
- the light modulation device may include other components, if necessary, in addition to the above components.
- NIR Near-Infrared
- a method of manufacturing the light modulation device is not particularly limited, and the device may be manufactured through a known method except that the above element is applied as each component.
- optical devices can be used for various purposes, and for example, eyewear such as sunglasses or eyewear for AR (Argumented Reality) or VR (Virtual Reality), exterior walls of buildings or sunroofs for vehicles, etc. have.
- eyewear such as sunglasses or eyewear for AR (Argumented Reality) or VR (Virtual Reality), exterior walls of buildings or sunroofs for vehicles, etc. have.
- an optical modulation device it is possible to provide an optical modulation device, an optical device, or a manufacturing method thereof that can stably maintain designed optical properties even after an encapsulation process in which pressure is applied, such as an autoclave process.
- the present application can provide an optical modulation device, an optical device including the same, or a method of manufacturing the same, which can stably maintain the alignment state of the optical modulation layer while effectively securing adhesion between the upper and lower substrates.
- FIG. 1 is a view showing a process of measuring transmittance T 1 and T 2 .
- FIGS. 2 to 4 are schematic diagrams of an exemplary light modulation device of the present application.
- Transmittance T 1 and T 2 were measured for the light modulation device manufactured in Example or Comparative Example.
- the light modulating device applied to the measurement is a device before attaching a poly(vinyl alcohol) (PVA) polarizing layer to the second surfaces of the first and second substrates.
- PVA poly(vinyl alcohol)
- the light modulation device of the Example or Comparative Example is a device configured such that the initial orientation is vertical, transmittance T 1 and T 2 were measured without applying a separate power source.
- the optical absorption axes of the built-in polarizers were set to be orthogonal to each other, and after turning on the metal halide light source of the microscope, a Linkam LTS420 hot stage was installed on the microscope stage.
- the sample (the optical modulation device) was placed on the Linkam LTS420 hot stage.
- the slow axis of the substrate of the light modulation device was parallel to the light absorption axis of one of the polarizers built in the BX51 polarization microscope.
- Transmittance T 1 was measured in the above state. Transmittance was measured by installing StellarNet's Blue-Wave and UVN spectrometer on a microscope, and the measurement wavelength was set in the visible light wavelength range (about 380 nm to 770 nm).
- the temperature of the Linkam LTS420 hot stage was set to 100° C., and maintained there for 5 minutes.
- transmittance T 2 was measured in the same manner as transmittance T 1 . However, transmittance T 2 was measured using a Linkam LTS420 hot stage immediately after maintaining at 100° C. for 5 minutes while maintaining the temperature as it is.
- the in-plane retardation value (Rin) of the film was measured for light of a wavelength of 550 nm using Agilent's UV/VIS spectroscope 8453 equipment. After installing two polarizers in a UV/VIS spectroscope so that their transmission axes are orthogonal to each other, the slow axis of the polymer film between the two polarizers forms 45 degrees with the transmission axes of the two polarizers, respectively, transmittance according to wavelength was measured. A phase retardation order of each peak is obtained from the transmittance graph according to wavelength.
- Equation A the waveform satisfies the following Equation A
- Tmax the maximum peak (Tmax) condition in the sine waveform satisfies the following Equation B.
- T of Equation A and T of Equation B are the same, the expression is expanded. Expanding the equations for n+1, n+2, and n+3, arranging the n and n+1 equations to eliminate R, and rearranging n into the ⁇ n and ⁇ n+1 equations, the following equation C is derived.
- R is obtained for each of ⁇ n, ⁇ n+1, ⁇ n+2 and ⁇ n+3.
- R is obtained for each of ⁇ n, ⁇ n+1, ⁇ n+2 and ⁇ n+3.
- the Y value when 550 nm is substituted for x of the above function is the Rin value for light having a wavelength of 550 nm.
- n ( ⁇ n -3 ⁇ n+1)/(2 ⁇ n+1 +1-2 ⁇ n)
- R means the in-plane phase difference (Rin)
- ⁇ means the wavelength
- n means the vertex order of the sine wave.
- the thickness of the liquid crystal layer and the silicone pressure-sensitive adhesive layer was checked using a measuring device (F20, manufactured by Filmetric). In the above, the thickness of the liquid crystal layer was the cell gap, and it was confirmed through the height of the spacer.
- a poly(ethylene terephthalate) (PET) film (SKC, a high-stretch PET product) having a thickness of about 145 ⁇ m on which an indium tin oxide (ITO) electrode layer is deposited on one surface was used.
- the in-plane retardation (550 nm) of the PET film was about 10,000 nm.
- a silicone pressure-sensitive adhesive layer was formed on the surface of the ITO electrode layer of the PET film.
- the silicone adhesive layer is a catalyst (Shin-Etsu, CAT-PL) in a silicone adhesive precursor solution (manufactured by Shin-Etsu Chemical, KR-3700) in which a silicone adhesive precursor is dissolved in toluene as a solvent at a solid concentration of about 60% by weight. -56) and a pressure-sensitive adhesive solution prepared by adding the compound of Formula A below was coated on the ITO layer with a bar, and maintained at about 150° C. for 5 minutes to form a thickness of about 8 ⁇ m.
- the weight ratio of the silicone pressure-sensitive adhesive precursor, the catalyst, and the compound of formula A is 60:0.5:6.7.
- a PET (poly(ethylene terephthalate)) film manufactured by Toyobo, SRF
- ITO indium tin oxide
- the in-plane retardation (550 nm) of the PET film was about 9,000.
- a rectangular barrier rib spacer having a pitch of about 350 ⁇ m, a line width of about 10 ⁇ m, and a height of about 6 ⁇ m was used in an area ratio of about 9% (spacer out of the total substrate area). ratio of the area occupied by ).
- a vertical alignment layer (5661LB3, Nissan) was formed on the spacer.
- the alignment layer was formed by diluting the alignment layer material (5661LB3, Nissan Corporation) in a solvent to have a solid content of about 2.2% by weight, and maintaining it at 100° C. for about 10 minutes after #2 bar coating.
- the vertical alignment layer was formed by rubbing in one direction. The rubbing direction was perpendicular to the slow axis direction of the second substrate.
- the liquid crystal composition was coated on the surface of the vertical alignment layer of the second substrate, and the pressure-sensitive adhesive layer of the first substrate was laminated to face the coated surface of the liquid crystal composition.
- the positions of the slow axes of the first and second substrates were adjusted to be parallel to each other.
- liquid crystal composition a composition including a liquid crystal compound (Merck, MAT-19-1205) and a chiral dopant (Merck, S811) was used.
- the content of the chiral dopant was adjusted so that the pitch (chiral pitch) (p) of the twisted orientation was about 20 ⁇ m.
- a poly(vinyl alcohol) (PVA) polarizing layer was attached to the second surfaces of the first and second substrates, respectively.
- PVA poly(vinyl alcohol)
- Equation 2 S is the weight of the silicon compound (compound of Formula A in the case of Example 1) in the pressure-sensitive adhesive layer, and O is the weight of the pressure-sensitive adhesive layer excluding the silicon compound.
- a light modulation device was manufactured in the same manner as in Example 1, except that the thickness of the silicone adhesive layer was formed to be about 10 ⁇ m.
- a light modulation device was manufactured in the same manner as in Example 1, except that the ratio of the compound of Formula A was adjusted so that the A value of Equation 2 was about 0.125, and the thickness of the silicone adhesive layer was about 6 ⁇ m. .
- the compound of Formula B is applied instead of the compound of Formula A, the ratio of the compound of Formula B is adjusted so that the value of A in Formula 2 is about 0.15, and the thickness of the silicone adhesive layer is about 8 ⁇ m except that Then, an optical modulation device was manufactured in the same manner as in Example 1.
- a light modulation device was manufactured in the same manner as in Example 1, except that the compound of Formula D was applied instead of the compound of Formula A, and the thickness of the silicone adhesive layer was about 5 ⁇ m.
- a light modulation device was manufactured in the same manner as in Example 1, except that the compound of Formula D of Comparative Example 3 was applied instead of the compound of Formula A, and the thickness of the silicone adhesive layer was about 12 ⁇ m.
- a light modulation device was manufactured in the same manner as in Example 1, except that the compound of Formula E was applied instead of the compound of Formula A, and the thickness of the silicone adhesive layer was about 3.6 ⁇ m.
- a light modulation device was manufactured in the same manner as in Example 1, except that the compound of Formula E of Comparative Example 5 was applied instead of the compound of Formula A, and the thickness of the silicone adhesive layer was about 14 ⁇ m.
- Example comparative example One 2 3 4
- FIG. 5 is a result of evaluating the light leakage for Example 1
- FIG. 6 is a result for Comparative Example 1. As shown in FIG. 5
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Thermal Sciences (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
Description
실시예 | ||||
1 | 2 | 3 | 4 | |
A(하기 수식 2에 의해 정해짐) | 0.1 | 0.1 | 0.125 | 0.15 |
D(점착제층의 두께, μm) | 8 | 10 | 6 | 8 |
B(규소 화합물의 디알킬실록시기의 수) | 4 | 4 | 4 | 3 |
K=A×B×D | 3.2μm | 4μm | 3μm | 3.6μm |
(수식 2) A=S/(S+O) 수식 2에서 S는 점착제층 내의 규소 화합물의 무게이고, O는 상기 규소 화합물을 제외한 점착제층의 무게이다. |
비교예 | ||||||
1 | 2 | 3 | 4 | 5 | 6 | |
A(하기 수식 2에 의해 정해짐) | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
D(점착제층의 두께, μm) | 4 | 15 | 5 | 12 | 3.6 | 14 |
B(규소 화합물의 디알킬실록시기의 수) | 2 | 2 | 0 | 0 | 0 | 0 |
K=A×B×D | 1.2μm | 4.5μm | 0μm | 0μm | 0μm | 0μm |
(수식 2) A=S/(S+O) 수식 2에서 S는 점착제층 내의 규소 화합물의 무게이고, O는 상기 규소 화합물을 제외한 점착제층의 무게이다. |
실시예 | 비교예 | |||||||||
1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | 5 | 6 | |
투과율T1(%) | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
투과율T2(%) | 0.2 | 0.2 | 0.2 | 0.2 | 4.7 | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 |
실시예 | 비교예 | |||||||||
1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | 5 | 6 | |
수직 배향성 |
P | P | P | P | N | N | N | N | N | N |
Claims (19)
- 각각 제 1 표면과 제 2 표면을 가지며, 서로의 제 1 표면이 마주하도록 대향 배치되어 있는 제 1 및 제 2 기판; 및상기 제 1 및 제 2 기판의 사이에 존재하는 액정층을 포함하고,하기 식 1을 충족하는 광변조 디바이스:[식 1]T2 ≤ 3 × T1식 1에서 T1은, 상기 액정층을 수직 배향시키고, 직교 편광자의 사이에 위치시킨 후에 측정한 초기 투과율이고, T2는 상기 T1의 투과율을 나타내는 액정층을 수직 배향시킨 상태에서 100℃에서 5분 유지한 후에 상기 직교 편광자의 사이에 위치시킨 후에 측정한 투과율이다.
- 제 1 항에 있어서, 투과율 T2가 2% 이하인 광변조 디바이스.
- 제 1 항 또는 제 3 항에 있어서, 액정층은 수직 배향 상태 및 트위스티드 배향 상태를 스위칭할 수 있도록 형성되어 있는 광변조 디바이스.
- 제 3 항에 있어서, 화학식 1에서 R1 내지 R3 중 어느 하나는 수소 원자이고, 나머지 2개는 알킬기인 광변조 디바이스.
- 제 3 항에 있어서, 화학식 1에서 R1 내지 R3 중 어느 하나는 수소 원자이고, 나머지 2개는 탄소수 1 내지 20의 직쇄형 알킬기인 광변조 디바이스.
- 제 3 항에 있어서, 화학식 1의 치환기를 3개 이상 가지는 화합물은 상기 화학식 1의 치환기를 3개 내지 10개 포함하는 광변조 디바이스.
- 제 3 항에 있어서, 실리콘 점착제층 또는 접착제층은, 화학식 1의 치환기를 3개 이상 가지는 화합물을 1 내지 50 중량%의 비율로 포함하는 광변조 디바이스.
- 제 3 항에 있어서, 하기 수식 1에 따른 K값이 2 μm 이상인 광변조 디바이스:[수식 1]K = A×B×D수식 1에서 A는 하기 수식 2에 의해 정해지는 값이고, B는 화학식 1의 치환기를 3개 이상 가지는 화합물이 포함하는 상기 화학식 1의 치환기의 수이며, D는 실리콘 점착제층 또는 접착제층의 두께(단위: μm)이다:[수식 2]A = S/(S+O)수식 2에서 S는 실리콘 점착제층 또는 접착제층에 포함된 화학식 1의 치환기를 3개 이상 가지는 화합물의 무게이고, O는 상기 화학식 1의 치환기를 3개 이상 가지는 화합물을 제외한 상기 점착제층 또는 접착제층의 무게이다.
- 제 10 항에 있어서, 수식 1의 A가 0.01 내지 0.5의 범위 내에 있는 광변조 디바이스.
- 제 10 항에 있어서, 수식 1의 D가 0.5 내지 50μm의 범위 내에 있는 광변조 디바이스.
- 제 1 항 또는 제 3 항에 있어서, 제 1 기판에는 액정 배향막이 형성되어 있지 않은 광변조 디바이스.
- 제 1 항 또는 제 3 항에 있어서, 제 2 기판의 제 1 표면에는 액정 배향막이 형성되어 있는 광변조 디바이스.
- 제 1 항 또는 제 3 항에 있어서, 제 1 또는 제 2 기판은 550 nm 파장의 광에 대한 면내 위상차가 500 nm 이상인 광변조 디바이스.
- 제 1 항 또는 제 3 항에 있어서, 제 1 또는 제 2 기판의 제 2 표면상에 배치된 편광층을 추가로 포함하는 광변조 디바이스.
- 제 1 항 또는 제 3 항에 있어서, 제 1 또는 제 2 기판과 액정층의 사이에 존재하며, 하기 수식 3을 만족하는 광학 이방성 필름을 추가로 포함하는 광변조 디바이스:[수식 3]nz < ny수식 3에서 ny는 광학 이방성 필름의 진상축 방향의 550 nm 파장에 대한 굴절률이고, nz는 광학 이방성 필름의 두께 방향의 550 nm 파장에 대한 굴절률이다.
- 제 1 항 또는 제 3 항의 광변조 디바이스를 포함하는 원도우.
- 제 1 항 또는 제 3 항의 광변조 디바이스를 포함하는 선루프.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022575243A JP7552975B2 (ja) | 2020-07-31 | 2021-07-29 | 光変調デバイス |
EP21849685.9A EP4191328A4 (en) | 2020-07-31 | 2021-07-29 | OPTICAL MODULATION DEVICE |
US18/010,558 US20230258992A1 (en) | 2020-07-31 | 2021-07-29 | Light Modulating Device |
CN202180040904.5A CN115720645A (zh) | 2020-07-31 | 2021-07-29 | 光调制装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20200095864 | 2020-07-31 | ||
KR10-2020-0095864 | 2020-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022025684A1 true WO2022025684A1 (ko) | 2022-02-03 |
Family
ID=80035898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2021/009926 WO2022025684A1 (ko) | 2020-07-31 | 2021-07-29 | 광변조 디바이스 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230258992A1 (ko) |
EP (1) | EP4191328A4 (ko) |
JP (1) | JP7552975B2 (ko) |
KR (1) | KR102634119B1 (ko) |
CN (1) | CN115720645A (ko) |
TW (1) | TWI841862B (ko) |
WO (1) | WO2022025684A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11273319B2 (en) | 2008-03-18 | 2022-03-15 | Pthera LLC | Method and apparatus for irradiating a surface with pulsed light |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20240018238A (ko) * | 2022-08-02 | 2024-02-13 | 주식회사 엘지화학 | 광변조 디바이스 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007047460A (ja) * | 2005-08-10 | 2007-02-22 | Sony Corp | 液晶表示素子および投射型表示装置 |
JP4058321B2 (ja) * | 2002-10-07 | 2008-03-05 | ソニー株式会社 | 液晶表示素子およびその製造方法 |
KR101987371B1 (ko) * | 2015-04-08 | 2019-06-10 | 주식회사 엘지화학 | 수직 배향막 및 이를 포함하는 액정 소자 |
KR101987373B1 (ko) | 2015-02-16 | 2019-06-10 | 주식회사 엘지화학 | 액정 소자 |
KR20190076363A (ko) * | 2017-12-22 | 2019-07-02 | 주식회사 엘지화학 | 액정셀 |
KR101999963B1 (ko) * | 2015-06-12 | 2019-07-15 | 주식회사 엘지화학 | 표시 소자 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009053256A (ja) * | 2007-08-23 | 2009-03-12 | Sharp Corp | 液晶表示装置 |
JP2011190303A (ja) * | 2010-03-12 | 2011-09-29 | Seiko Epson Corp | 配向膜形成用組成物、配向膜、画像表示装置および電子機器 |
KR101461047B1 (ko) | 2010-08-09 | 2014-11-13 | 제이에스알 가부시끼가이샤 | 광지향성 제어 유닛 및 그의 제조 방법, 2d/3d 변환 가능 표시 모듈, 그리고 액정 배향제 |
KR101976215B1 (ko) * | 2012-09-17 | 2019-05-07 | 전북대학교산학협력단 | 액정 수직배향 유도제 및 이를 이용하여 제조된 액정표시장치 |
WO2014116076A1 (ko) * | 2013-01-25 | 2014-07-31 | 주식회사 엘지화학 | 액정 소자 |
TWI508970B (zh) * | 2014-03-07 | 2015-11-21 | Daxin Materials Corp | 矽氧烷三酸酐、聚合物、液晶配向劑、液晶配向膜以及液晶顯示元件 |
KR101732789B1 (ko) * | 2014-04-04 | 2017-05-08 | 주식회사 엘지화학 | 액정 소자 |
CN104961894B (zh) | 2015-07-13 | 2017-09-01 | 深圳市华星光电技术有限公司 | 用作取向膜材料的聚合物及取向膜的制备方法 |
JP2018532869A (ja) | 2015-09-15 | 2018-11-08 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングMerck Patent Gesellschaft mit beschraenkter Haftung | ホメオトロピック配向を有する液晶媒体 |
JP6183492B1 (ja) | 2016-03-29 | 2017-08-23 | 大日本印刷株式会社 | 調光フィルム及び調光フィルムの製造方法 |
KR102024252B1 (ko) * | 2016-09-09 | 2019-09-23 | 주식회사 엘지화학 | 폴더블(foldable) 디스플레이용 점착제 조성물 |
KR101941118B1 (ko) * | 2016-11-25 | 2019-01-23 | 주식회사 엘지화학 | 액정필름셀 및 이의 용도 |
EP3617786B1 (en) | 2017-04-28 | 2022-12-28 | LG Chem, Ltd. | Optical modulation device |
-
2021
- 2021-07-28 KR KR1020210098978A patent/KR102634119B1/ko active IP Right Grant
- 2021-07-29 WO PCT/KR2021/009926 patent/WO2022025684A1/ko active Application Filing
- 2021-07-29 JP JP2022575243A patent/JP7552975B2/ja active Active
- 2021-07-29 US US18/010,558 patent/US20230258992A1/en active Pending
- 2021-07-29 EP EP21849685.9A patent/EP4191328A4/en active Pending
- 2021-07-29 CN CN202180040904.5A patent/CN115720645A/zh active Pending
- 2021-07-30 TW TW110128108A patent/TWI841862B/zh active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4058321B2 (ja) * | 2002-10-07 | 2008-03-05 | ソニー株式会社 | 液晶表示素子およびその製造方法 |
JP2007047460A (ja) * | 2005-08-10 | 2007-02-22 | Sony Corp | 液晶表示素子および投射型表示装置 |
KR101987373B1 (ko) | 2015-02-16 | 2019-06-10 | 주식회사 엘지화학 | 액정 소자 |
KR101987371B1 (ko) * | 2015-04-08 | 2019-06-10 | 주식회사 엘지화학 | 수직 배향막 및 이를 포함하는 액정 소자 |
KR101999963B1 (ko) * | 2015-06-12 | 2019-07-15 | 주식회사 엘지화학 | 표시 소자 |
KR20190076363A (ko) * | 2017-12-22 | 2019-07-02 | 주식회사 엘지화학 | 액정셀 |
Non-Patent Citations (2)
Title |
---|
D. PODOLSKYY ET AL., LIQUID CRYSTALS, vol. 35, no. 7, 2008, pages 789 - 791 |
See also references of EP4191328A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11273319B2 (en) | 2008-03-18 | 2022-03-15 | Pthera LLC | Method and apparatus for irradiating a surface with pulsed light |
Also Published As
Publication number | Publication date |
---|---|
TW202212140A (zh) | 2022-04-01 |
US20230258992A1 (en) | 2023-08-17 |
CN115720645A (zh) | 2023-02-28 |
TWI841862B (zh) | 2024-05-11 |
JP7552975B2 (ja) | 2024-09-18 |
EP4191328A1 (en) | 2023-06-07 |
KR20220015965A (ko) | 2022-02-08 |
KR102634119B1 (ko) | 2024-02-07 |
EP4191328A4 (en) | 2024-01-03 |
JP2023528512A (ja) | 2023-07-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018199716A1 (ko) | 광변조 디바이스 | |
WO2021080361A1 (ko) | 광변조 디바이스 | |
WO2017074007A1 (ko) | 광학 소자 | |
WO2021091207A1 (ko) | 광변조 디바이스의 제조 방법 | |
WO2017095176A1 (ko) | 광학 소자 | |
WO2017105051A1 (ko) | 액정 윈도우 및 이를 포함하는 광학 소자 | |
WO2022025684A1 (ko) | 광변조 디바이스 | |
WO2014092518A1 (ko) | 액정 소자 | |
WO2018199619A1 (ko) | 광학 디바이스 | |
WO2018199615A1 (ko) | 광학 디바이스 | |
WO2018199616A1 (ko) | 광학 디바이스 | |
WO2017061768A1 (ko) | 광학 필름 | |
WO2020050612A1 (ko) | 투과도 가변 디바이스 | |
WO2018199618A1 (ko) | 광학 디바이스 | |
WO2022019679A1 (ko) | 광변조 디바이스 | |
WO2020050614A1 (ko) | 투과도 가변 디바이스 | |
WO2016159601A1 (ko) | 반사형 액정 소자 및 이의 용도 | |
WO2021167273A1 (ko) | 패턴 필름, 이를 포함하는 투과도 가변 디바이스 및 투과도 가변 디바이스의 제조 방법 | |
WO2022005244A1 (ko) | 점착제 및 액정셀 | |
WO2019190190A1 (ko) | 편광판 및 디스플레이 장치 | |
WO2021071263A1 (ko) | 광변조 디바이스 | |
WO2020050613A1 (ko) | 투과도 가변 디바이스 | |
WO2019107709A1 (ko) | 광학 디바이스 | |
WO2019066456A1 (ko) | 광학 소자의 구동 방법 | |
WO2021045557A1 (ko) | 플렉서블 디스플레이 장치를 위한 폴리에스테르 보호 필름 |
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: 21849685 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2022575243 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2021849685 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2021849685 Country of ref document: EP Effective date: 20230228 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |