CN103509560B - 高分子稳定化的光学各向同性液晶配方及光学各向同性液晶元件 - Google Patents
高分子稳定化的光学各向同性液晶配方及光学各向同性液晶元件 Download PDFInfo
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- CN103509560B CN103509560B CN201210347754.5A CN201210347754A CN103509560B CN 103509560 B CN103509560 B CN 103509560B CN 201210347754 A CN201210347754 A CN 201210347754A CN 103509560 B CN103509560 B CN 103509560B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 128
- 238000009472 formulation Methods 0.000 title 1
- 239000000203 mixture Substances 0.000 title 1
- 239000000178 monomer Substances 0.000 claims abstract description 71
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- 239000000758 substrate Substances 0.000 claims abstract description 29
- 229920002521 macromolecule Polymers 0.000 claims abstract description 23
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 20
- 239000011737 fluorine Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 19
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- -1 acryl Chemical group 0.000 claims description 82
- 239000007788 liquid Substances 0.000 claims description 52
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- 125000003118 aryl group Chemical group 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 5
- 125000000524 functional group Chemical group 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- FQMIAEWUVYWVNB-UHFFFAOYSA-N 3-prop-2-enoyloxybutyl prop-2-enoate Chemical compound C=CC(=O)OC(C)CCOC(=O)C=C FQMIAEWUVYWVNB-UHFFFAOYSA-N 0.000 claims description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 3
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- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 claims description 3
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- UKQBWWAPJNHIQR-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical class OC(=O)C=C.CCC(CO)(CO)CO UKQBWWAPJNHIQR-UHFFFAOYSA-N 0.000 claims description 2
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- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 125000002837 carbocyclic group Chemical group 0.000 claims description 2
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 2
- 125000000623 heterocyclic group Chemical group 0.000 claims description 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 claims 1
- CFVWNXQPGQOHRJ-UHFFFAOYSA-N 2-methylpropyl prop-2-enoate Chemical compound CC(C)COC(=O)C=C CFVWNXQPGQOHRJ-UHFFFAOYSA-N 0.000 claims 1
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims 1
- 229920000642 polymer Polymers 0.000 abstract 4
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 10
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- ISSYGWIDLYOJEN-UHFFFAOYSA-N [3-methyl-4-[4-(3-prop-2-enoyloxypropoxy)benzoyl]oxyphenyl] 4-(3-prop-2-enoyloxypropoxy)benzoate Chemical compound C=1C=C(OC(=O)C=2C=CC(OCCCOC(=O)C=C)=CC=2)C(C)=CC=1OC(=O)C1=CC=C(OCCCOC(=O)C=C)C=C1 ISSYGWIDLYOJEN-UHFFFAOYSA-N 0.000 description 5
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- 229940096522 trimethylolpropane triacrylate Drugs 0.000 description 5
- QTKPMCIBUROOGY-UHFFFAOYSA-N 2,2,2-trifluoroethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)F QTKPMCIBUROOGY-UHFFFAOYSA-N 0.000 description 4
- GTELLNMUWNJXMQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(CO)(CO)CO GTELLNMUWNJXMQ-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
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- FMQPBWHSNCRVQJ-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropan-2-yl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C(F)(F)F)C(F)(F)F FMQPBWHSNCRVQJ-UHFFFAOYSA-N 0.000 description 2
- RSVZYSKAPMBSMY-UHFFFAOYSA-N 2,2,3,3-tetrafluoropropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)C(F)F RSVZYSKAPMBSMY-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical class NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
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- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 238000010538 cationic polymerization reaction Methods 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
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- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical class C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 125000005677 ethinylene group Chemical group [*:2]C#C[*:1] 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M methacrylate group Chemical group C(C(=C)C)(=O)[O-] CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 238000010526 radical polymerization reaction Methods 0.000 description 2
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 2
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
- QERNPKXJOBLNFM-UHFFFAOYSA-N 1,1,2,2,3,3,4,4-octafluoropentane Chemical compound CC(F)(F)C(F)(F)C(F)(F)C(F)F QERNPKXJOBLNFM-UHFFFAOYSA-N 0.000 description 1
- OTEKOJQFKOIXMU-UHFFFAOYSA-N 1,4-bis(trichloromethyl)benzene Chemical class ClC(Cl)(Cl)C1=CC=C(C(Cl)(Cl)Cl)C=C1 OTEKOJQFKOIXMU-UHFFFAOYSA-N 0.000 description 1
- MLBWTXHUVGBPNL-UHFFFAOYSA-N 1-pyridin-4-ylheptan-1-one Chemical compound CCCCCCC(=O)C1=CC=NC=C1 MLBWTXHUVGBPNL-UHFFFAOYSA-N 0.000 description 1
- VBHXIMACZBQHPX-UHFFFAOYSA-N 2,2,2-trifluoroethyl prop-2-enoate Chemical compound FC(F)(F)COC(=O)C=C VBHXIMACZBQHPX-UHFFFAOYSA-N 0.000 description 1
- CLISWDZSTWQFNX-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)C(F)(F)F CLISWDZSTWQFNX-UHFFFAOYSA-N 0.000 description 1
- JDVGNKIUXZQTFD-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropyl prop-2-enoate Chemical compound FC(F)(F)C(F)(F)COC(=O)C=C JDVGNKIUXZQTFD-UHFFFAOYSA-N 0.000 description 1
- VIEHKBXCWMMOOU-UHFFFAOYSA-N 2,2,3,3,4,4,4-heptafluorobutyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)C(F)(F)C(F)(F)F VIEHKBXCWMMOOU-UHFFFAOYSA-N 0.000 description 1
- PLXOUIVCSUBZIX-UHFFFAOYSA-N 2,2,3,3,4,4,4-heptafluorobutyl prop-2-enoate Chemical compound FC(F)(F)C(F)(F)C(F)(F)COC(=O)C=C PLXOUIVCSUBZIX-UHFFFAOYSA-N 0.000 description 1
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- ZNJXRXXJPIFFAO-UHFFFAOYSA-N 2,2,3,3,4,4,5,5-octafluoropentyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)C(F)(F)C(F)(F)C(F)F ZNJXRXXJPIFFAO-UHFFFAOYSA-N 0.000 description 1
- VHJHZYSXJKREEE-UHFFFAOYSA-N 2,2,3,3-tetrafluoropropyl prop-2-enoate Chemical compound FC(F)C(F)(F)COC(=O)C=C VHJHZYSXJKREEE-UHFFFAOYSA-N 0.000 description 1
- DFVPUWGVOPDJTC-UHFFFAOYSA-N 2,2,3,4,4,4-hexafluorobutyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)C(F)C(F)(F)F DFVPUWGVOPDJTC-UHFFFAOYSA-N 0.000 description 1
- GJKGAPPUXSSCFI-UHFFFAOYSA-N 2-Hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone Chemical compound CC(C)(O)C(=O)C1=CC=C(OCCO)C=C1 GJKGAPPUXSSCFI-UHFFFAOYSA-N 0.000 description 1
- FIOCEWASVZHBTK-UHFFFAOYSA-N 2-[2-(2-oxo-2-phenylacetyl)oxyethoxy]ethyl 2-oxo-2-phenylacetate Chemical compound C=1C=CC=CC=1C(=O)C(=O)OCCOCCOC(=O)C(=O)C1=CC=CC=C1 FIOCEWASVZHBTK-UHFFFAOYSA-N 0.000 description 1
- UHFFVFAKEGKNAQ-UHFFFAOYSA-N 2-benzyl-2-(dimethylamino)-1-(4-morpholin-4-ylphenyl)butan-1-one Chemical compound C=1C=C(N2CCOCC2)C=CC=1C(=O)C(CC)(N(C)C)CC1=CC=CC=C1 UHFFVFAKEGKNAQ-UHFFFAOYSA-N 0.000 description 1
- LWRBVKNFOYUCNP-UHFFFAOYSA-N 2-methyl-1-(4-methylsulfanylphenyl)-2-morpholin-4-ylpropan-1-one Chemical compound C1=CC(SC)=CC=C1C(=O)C(C)(C)N1CCOCC1 LWRBVKNFOYUCNP-UHFFFAOYSA-N 0.000 description 1
- RIWRBSMFKVOJMN-UHFFFAOYSA-N 2-methyl-1-phenylpropan-2-ol Chemical compound CC(C)(O)CC1=CC=CC=C1 RIWRBSMFKVOJMN-UHFFFAOYSA-N 0.000 description 1
- MUPVMBYZLBWZDN-UHFFFAOYSA-N 2-methylideneoctanoic acid;prop-2-enoic acid Chemical compound OC(=O)C=C.CCCCCCC(=C)C(O)=O MUPVMBYZLBWZDN-UHFFFAOYSA-N 0.000 description 1
- CDXFIRXEAJABAZ-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CDXFIRXEAJABAZ-UHFFFAOYSA-N 0.000 description 1
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- FQHLOOOXLDQLPF-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-henicosafluorododecyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F FQHLOOOXLDQLPF-UHFFFAOYSA-N 0.000 description 1
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- 101100001675 Emericella variicolor andJ gene Proteins 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
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- KTPONRIHDUNNPD-UHFFFAOYSA-N [3,3,4,4,5,5,6,6,7,7,8,8,9,10,10,10-hexadecafluoro-9-(trifluoromethyl)decyl] 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(C(F)(F)F)C(F)(F)F KTPONRIHDUNNPD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- ATMLPEJAVWINOF-UHFFFAOYSA-N acrylic acid acrylic acid Chemical group OC(=O)C=C.OC(=O)C=C ATMLPEJAVWINOF-UHFFFAOYSA-N 0.000 description 1
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000001231 benzoyloxy group Chemical group C(C1=CC=CC=C1)(=O)O* 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
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- 125000002529 biphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C12)* 0.000 description 1
- VENJJOGQEGHFPI-UHFFFAOYSA-N butyl prop-2-enoate;2-methylidenehexanoic acid Chemical compound CCCCOC(=O)C=C.CCCCC(=C)C(O)=O VENJJOGQEGHFPI-UHFFFAOYSA-N 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
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- 125000002993 cycloalkylene group Chemical group 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000005678 ethenylene group Chemical group [H]C([*:1])=C([H])[*:2] 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 125000000219 ethylidene group Chemical group [H]C(=[*])C([H])([H])[H] 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 150000002496 iodine Chemical class 0.000 description 1
- HVOYZOQVDYHUPF-UHFFFAOYSA-N n,n',n'-trimethylethane-1,2-diamine Chemical compound CNCCN(C)C HVOYZOQVDYHUPF-UHFFFAOYSA-N 0.000 description 1
- STBVKVIDVALRSA-UHFFFAOYSA-N octyl 2-methylidenedecanoate Chemical compound CCCCCCCCOC(=O)C(=C)CCCCCCCC STBVKVIDVALRSA-UHFFFAOYSA-N 0.000 description 1
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical class P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 description 1
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- FAQJJMHZNSSFSM-UHFFFAOYSA-N phenylglyoxylic acid Chemical compound OC(=O)C(=O)C1=CC=CC=C1 FAQJJMHZNSSFSM-UHFFFAOYSA-N 0.000 description 1
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- 239000010703 silicon Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
- C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
-
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Abstract
本发明提供一种高分子稳定化的光学各向同性液晶配方,包括:50~99.5重量份的光学各向同性液晶材料;以及0.5~50重量份的高分子,其中该高分子包括由具液晶相压克力单体或/和非具液晶相压克力单体、以及含氟基的压克力单体所聚合而成的高分子。本发明还提供一种光学各向同性液晶元件,包括一对基板、以及由该对基板所夹集的高分子稳定化的光学各向同性液晶配方,其中该对基板中至少一块基板为透明基板。
Description
【技术领域】
本发明涉及一种光学各向同性液晶配方,尤其是涉及一种高分子稳定化的光学各向同性液晶配方及其应用。
【背景技术】
所谓各向同性液晶或光学各向同性液晶是指在无电场施加下双折射性为零,蓝相或温度高于蓝相(bluephase,BP)的各向同性相(isotropicphase)即属此类。蓝相是存在于胆甾相(cholestericphase,CH)与各向同性相之间1~2度很窄的温度范围的液晶相,实用化极受限制。蓝相液晶中加入5~20wt%的高分子,可以使蓝相的温度范围扩大。高分子稳定化方法也同样应用于各向同性相液晶,称为高分子稳定化各向同性相液晶(polymer-stabilizedisotropicphaseliquidcrystal,PSIP)。
前述蓝相与各向同性相液晶具有在未施加电场的状态下呈现光学各向同性的优点,所以不需要像传统向列型液晶需要特别控制配向;原本的光学各向同性材料可以通过电场转为光学各向异性(anisotropic),也就是双折射性(Δn,birefringence)可透过电场诱发。而且因为应答时间小于1ms、高对比又不需配向,如此优异的光电特性很快地就成为令人注目的新兴显示技术。
高分子稳定化技术有效拓宽蓝相或各向同性相的使用温度,然而此类显示元件具有操作电压的问题与迟滞现象急需解决。
因此,业界亟需一种可降低操作电压,减少迟滞现象产生的光学各向同性液晶以改善光学元件的性能。
【发明内容】
本发明提供一种高分子稳定化的光学各向同性液晶配方,包括:50~99.5重量份的光学各向同性液晶材料;以及0.5~50重量份的高分子,其中该高分子包括由具液晶相压克力单体或/和非具液晶相压克力单体、以及含氟基的压克力单体所聚合而成的高分子。
本发明还提供一种光学各向同性液晶元件,包括一对基板、以及由该对基板所夹集的前述高分子稳定化的光学各向同性液晶配方,其中该对基板中至少一块基板为透明基板。
为让本发明的上述和其他目的、特征、和优点能更加明显易懂,下文特举出实施例,作详细说明如下:
【附图说明】
图1a-1b为根据本发明实施例,分别显示本发明的光学元件的俯视图与剖面图。
图2为根据本发明的多个实施例,显示本发明的光学元件的操作电压及降低迟滞的效果。
【主要附图标记说明】
100~光学各向同性液晶元件;
103、104~基板;
110~高分子稳定化的光学各向同性液晶配方;
101~像素电极;
102~对应电极;
110~液晶分子;
105~电场。
【具体实施方式】
本发明一实施例提供一种高分子稳定化的光学各向同性液晶配方,包括:约50~99.5重量份或约75~95重量份的光学各向同性液晶材料;以及约0.5~50重量份或约1~30重量份的高分子。在一实施例中,上述高分子包括至少由:约10~90重量份或约15~65重量份的上述具液晶相压克力单体或/和非具液晶相压克力单体以及约1~90重量份或约15~35重量份的上述含氟基的压克力单体所聚合而成的高分子。
在另一实施例中,上述高分子包括至少由:约35~65重量份的上述具液晶相压克力单体及约15~35重量份非具液晶相压克力单体以及约15~35重量份的上述含氟基的压克力单体所聚合而成的高分子。
在又一实施例中,上述高分子为高分子网络型态。
在一实施例中,上述光学各向同性液晶材料可为蓝相液晶材料或各向同性相液晶材料。在另一实施例中,上述光学各向同性液晶材料的双折射率(Δn,birefringence)约介于0.05~0.5;介电各向异性(Δε,dielectricanisotropic)约介于3~250。
在又一实施例中,上述光学各向同性液晶材料可以是液晶分子或是液晶分子的组合,也可以包含至少一种液晶分子与旋光物,上述液晶分子例如是可呈现向列相、层列相、胆甾相的单液晶核或多液晶核的分子。例如包含:棒状液晶、非棒状液晶、或前述的组合,其中该非棒状液晶包含弯曲形(bent-shape)液晶、T形(T-shape)液晶、U形(U-shape)液晶、λ形(λ-shape)液晶、盘状液晶、柱状(columnar)液晶、或前述的组合。
当上述光学各向同性液晶材料包含至少一种液晶分子与旋光物时,上述液晶分子与上述旋光物的重量比为约100:1至100:30或约100:2至100:10。上述旋光物例如可为旋光向列型化合物,例如:任选取代的联苯(optionallysubstitutedbiphenyl)或具有-Ar-B-Ar结构的化合物,其中Ar为任选取代的芳香基,B为连结基,例如羰基(-C(O)-;carbonylgroup)、酯基(-C(O)O-;estergroup)、碳酸酯基(-OC(O)O-);carbonateestergroup)、酰胺基(-C(O)NH-;amidegroup)、偶氮基(-N=N-;azogroup)、亚甲基(-CH2-;methylenegroup)、亚乙基(-C2H4-;ethylenegroup)、亚乙烯基(-CH=CH-;vinylenegroup)、亚乙炔基(-C≡C-;ethynylenegroup)、氧(-O-)、硫(-S-)等,又例如可使用US7,623,214第5~6栏所列举的旋光物,其螺旋扭转力(helicaltwistingpower,HTP)范围可介于约20μm-1至约200μm-1或更高。
在一实施例中,具液晶相压克力单体包括:单官能基具液晶相压克力单体、双官能基具液晶相压克力单体、多官能基具液晶相压克力单体、或上述的组合。
在另一实施例中,具液晶相压克力单体可表示为R-S-M-P或R-S-M-S-R。其中,R为可聚合的官能基,包括含丙烯酸甲酯类(Methacrylate)官能基或丙烯酸酯类(Acrylate)官能基;S为柔软键(非刚性键结),包括单键、亚烷基(-(CH2)m-;m介于1至12)或亚烷氧基(-O(CH2)n-;n介于1至12);P为C1至C12的烷基、C1至C12的烷氧基或氰基;-M-为液晶核,例如可表示如下式:
其中,L为单键或二价连接基(例如:-COO-、-CH2O-、-CONH-、或-C=N-);X为-H、-CH3、或-F;B为取代或未取代的二价连接基(divalentlinkinggroup),其中该二价连接基包括二价芳香环基(arylenegroup)、二价脂肪环基(cycloalkylenegroup)、或二价芳香环及/或二价脂肪环的组合所形成的二价连接基(adivalentlinkinggroupformedbyacombinationofarylenegroupand/orcycloalkylenegroup),其中该二价芳香环及/或二价脂肪环的组合所形成的二价连接基的各环间以单键或连接基连接。此外,该二价芳香环及该二价脂肪环可为杂环(hetrocyclic)或碳环。在一实施例中,二价芳香环为二价联苯基(biphenylene);二价脂肪环为二价环己烷基。
在一实施例中,具液晶相压克力单体可包括但不限于下列化合物:
或上述的组合;其中m介于1至12,X包括-H、-CH3、或-F。
本发明所使用的非具液晶相压克力单体可包括但不限于:单官能基非具液晶相压克力单体、双官能基非具液晶相压克力单体、多官能基非具液晶相压克力单体。其中,单官能基非具液晶相压克力单体例如包括丙烯酸乙酯(ethylacrylate)、丙烯酸正丁酯(n-butylacrylate)、丙烯酸异丁酯(t-butylacrylate)、丙烯酸正己酯(n-hexylacrylate)、丙烯酸正辛酯(n-octylacrylate)、丙烯酸十二烷基酯(Dodecylacrylate)、丙烯酸2-乙基己基酯(2-ethylhexylacrylate)、3,5,5-三甲基己基丙烯酸酯(3,5,5-trimethylhexylacrylate)或前述的组合。双官能基非具液晶相压克力单体例如包括1,3-丁二醇二丙烯酸酯(1,3-Butanedioldiacrylate)、亚乙基二丙烯酸酯(Ethylenediacrylate)、或前述的组合。多官能基非具液晶相压克力单体例如包括三丙烯酸三羟甲基丙烷(trimethylolpropanetriacrylate,TMPTA)。
本发明所使用的含氟基的压克力单体可包括但不限于含氟基的甲基丙烯酸酯类(Methacrylate)化合物、含氟基的丙烯酸酯类(Acrylate)化合物、或前述的组合。例如:甲基丙烯酸三氟乙酯(2,2,2-TrifluoroethylMethacrylate,3FMA)、丙烯酸三氟乙酯(2,2,2-TrifluoroethylAcrylate)、甲基丙烯酸四氟丙酯(2,2,3,3-TetrafluoropropylMethacrylate)、丙烯酸四氟丙酯(2,2,3,3-TetrafluoropropylAcrylate)、丙烯酸五氟丙酯(2,2,3,3,3-PentafluoropropylAcrylate)、甲基丙烯酸五氟丙酯(2,2,3,3,3-PentafluoropropylMethacrylate)、甲基丙烯酸六氟异丙酯(1,1,1,3,3,3-HexafluoroisopropylAcrylate)、甲基丙烯酸三氟甲基三氟乙酯(1H-1-(Trifluoromethyl)TrifluoroethylMethacrylate)、甲基丙烯酸六氟丁酯(2,2,3,4,4,4-HexafluorobutylMethacrylate)、丙烯酸六氟丁酯(2,2,3,4,4,4-HexafluorobutylAcrylate)、甲基丙烯酸七氟丁酯(1H,1H-HeptafluorobutylMethacrylate)、丙烯酸七氟丁酯(1H,1H-HeptafluorobutylAcrylate)、甲基丙烯酸八氟戊酯(1H,1H,5H-OctafluoropentylMethacrylate)、丙烯酸八氟戊酯(1H,1H,5H-OctafluoropentylAcrylate)、丙烯酸十二氟庚酯(1H,1H,7h-DodecafluoroheptylAcrylate)、丙烯酸全氟己基乙酯(2-(Perfluorohexyl)EthylAcrylate)、甲基丙烯酸全氟己基乙酯(2-(Perfluorohexyl)EthylMethacrylate)、甲基丙烯酸全氟辛基乙酯(2-(Perfluorooctyl)EthylMethacrylate)、甲基丙烯酸全氟甲基辛基乙酯(2-(Perfluoro-7-Methyloctyl)EthylMethacrylate)、丙烯酸全氟甲基辛基乙酯(2-(Perfluoro-9-Methyloctyl)EthylAcrylate)、丙烯酸全氟癸基乙酯(2-(Perfluorodecyl)EthylAcrylate)、甲基丙烯酸全氟癸基乙酯(2-(Perfluorodecyl)EthylMethacrylate)、或上述的组合。
本发明的高分子网络的聚合方式可为,例如:自由基聚合(radicalpolymerization)、阴离子聚合(anionicpolymerization),阳离子聚合(cationicpolymerization),开环聚合(ring-openingpolymerization),官能基团转移聚合(grouptransferpolymerization)、或任何所属技术领域中惯用的适合的聚合方式,上述所列举的聚合反应可由热或光所激发。因此,可进一步加入例如0.5~3重量份的光起始剂。在一实施例中,光起始剂包括羟基酮类(Hydroxyketone;如IRGACURE184、DAROCUR1173、IRGACURE2959)、苯基乙醛酸类(Phenylglyoxylate;如DAROCURMBF、IRGACURE754)、苯甲基二甲基缩酮类(Benzyldimethyl-ketal;如IRGACURE651)、氨基酮类(Aminoketone;如IRGACURE369、IRGACURE907)、单酰基二苯类(MonoAcylDiphenyl;如DAROCURTPO)、双酰基膦类(BisAcylPhosphine;如IRGACURE819)、氧化膦类(Phosphineoxide;如IRGACURE2100)、碘盐类(Iodoniumsalt;如IRGACURE250)、茂金属类(Metallocene;如IRGACURE784)、或前述的组合。
值得注意的是,为符合液晶元件的性能需求,上述非具液晶相压克力单体可单独添加或与具液晶相压克力单体同时添加于本发明的分子稳定化的光学各向同性液晶配方中,亦可仅单独添加具液晶相压克力单体。其中,添加非具液晶相压克力单体的目的包括可扩大操作温度的范围;而具液晶相压克力单体的添加则可调和非具液晶相压克力单体与本发明所述的光学各向同性液晶材料之间的相容性。此外,在其他实施例中,高分子网络也可包括少量透明低聚物或高分子,例如:环氧树脂(epoxy)、纤维素(cellulose)、聚丙烯(polypropylene)、聚乙烯(polyethylene)、聚偏二氟乙烯(polyvinylidenefluoride,PVDF)或前述的组合。
参阅图1a的俯视图与图1b的剖面图,本发明亦提供一种光学各向同性液晶元件100,包括一对基板(103、104)、以及由该对基板(103、104)所夹集的本发明的高分子稳定化的光学各向同性液晶配方110,其中该对基板中至少一块基板为透明基板。上述基板(103、104)可为刚性基板或可挠性基板,其中刚性基板可包括但不限于:玻璃、陶瓷、硅基材、或上述的组合,上述可挠性基板可为塑胶基板,包括但不限于:聚醚砜(polyethersulfone,PES)、聚萘二甲酸乙二酯(polyethylenenaphthalate,PEN)、聚乙烯(Polyethylene,PE)、聚酰亚胺(polyimide,PI)、聚氯乙烯(polyvinylchloride,PVC)、聚对苯二甲酸乙二酯(polyethyleneterephthalate,PET)、或上述的组合。
在一实施例中,本发明的光学各向同性液晶元件100可为平面内切换液晶(in-planeswitching,IPS)元件,此时,在基板104上具有像素电极101(pixelelectrode)以及对应电极102(counterelectrode),其中至少一部分的像素电极以及至少一部分的对应电极呈现指叉式平行的条状(inter-digitizedparallelbars),且两者之间交错排列配置,如图1a所示。上述两基板的间距(cellgap)可介于约1μm至约20μm,或者可介于约2μm至约8μm。像素电极与对应电极之间的距离可介于约1μm至约10μm。如前所述,本发明的光学各向同性液晶配方还具有不需配向膜的优点。
本发明所述的光学各向同性液晶元件中的液晶分子110可为蓝相液晶材料或各向同性相液晶材料,其位于两基板之间,上述两基板之间可利用分隔物来控制两基板的间距,在施加横跨电极的电场105后,可改变光学各向同性液晶的三维结构并且诱导双折射。本发明所提供的光学各向同性的液晶110利用含氟基的压克力单体的高分子网络对光学各向同性液晶配方进行高分子稳定化,可降低操作电压,减少迟滞现象产生,使光学各向同性液晶元件100的迟滞几乎完全消失(半高(halfheight)约小于1V,甚至可达0V)。此外,本发明的光学各向同性液晶配方亦可位于可挠性基板之上并具有图案化结构以提供基板物理性的支持,从而抵抗外部压力以及机械冲击。
本发明的光学各向同性液晶元件可为例如但不限于:光学显示器、相位调制器(phasemodulator)、光束操控元件(beamsteeringdevice)、感测器、以及激光装置等,并且可利用本技术领域中任何惯用的适合的方法来制作本发明的光学各向同性液晶元件。
本发明的光学各向同性液晶元件可应用在各种电子装置,例如行动电话、数码相机、个人资料助理(PDA)、笔记本型电脑、桌上型电脑、手写电脑、电视、车用显示器、可携式DVD播放机、电子标签、电子书、智能卡、或大型广告看板等。
实施例1.
1.蓝相液晶配方(蓝相温度范围在56~63℃):
(1)95.7wt%高介电各向异性液晶配方JM2069-145,其中,JM2069-145具有下列物理性质:双折射率(birefringence)Δn=0.215(在波长λ=633nm时);介电各向异性(dielectricanisotropic)Δε=50(在1kHz及21°C下);以及澄清点(clearingtemperature)Tc=80°C(请参考Y.Chen,J.Yan,J.Sun,S.T.Wu,X.Liang,S.H.Liu,P.J.Hsieh,K.L.Cheng,andJ.W.Shiu,“Amicrosecond-responsepolymer-stabilizedbluephaseliquidcrystal,”Appl.Phys.Lett.99,201105(Nov.15,2011));以及
(2)4.3wt%R5011(旋光物,购自Merck)。
2.单体配方3FMM1
(1)24.5wt%甲基丙烯酸三氟乙酯(含氟基的压克力单体;2,2,2-trifluoroethylmethacrylate;Fluorester;3FMA;购自F-Tech),其具有下列化学式:
(2)24.5wt%三丙烯酸三羟甲基丙烷(三官能基非具液晶相压克力单体;trimethylolpropanetriacrylate;TMPTA;购自Aldrich),其具有下列化学式:
(3)49wt%RM257(双官能基反应性具液晶相压克力单体1,4-Bis-[4-(3-acryloyloxypropyloxy)benzoyloxy]-2-methylbenzene,购自Merck),其具有下列化学式:
以及
(4)2wt%Irgacure651(光起始剂;2-羟基-4’-(2-羟基乙氧基)-2-甲基苯丙酮(2-Hydroxy-4’-(2-hydroxyethoxy)-2-methylpropiophenone);购自ciba)。
3.高分子稳定化配方调配与元件制作
配方:
90wt%蓝相液晶以及10wt%3FMM1。
元件制作:
液晶盒(Cell):购自Instec公司(平面内切换液晶盒,无聚酰亚胺配向膜,线宽/间距(line/space)=10μm/10μm,液晶盒距7.5μm)。
上述配方灌入后,在51°C下曝光10分钟。所形成的元件以200Hz施加0至70V(以0.1V的间隔提升电压),随即施加70至0V(同样以0.1V的间隔将电压降回),纪录来回电压-穿透度曲线,比较两条曲线的差异。
结果如图2所示,实施例1所得的光学元件的操作电压为操作电压为62V,迟滞(半高(halfheight))=0V。
实施例2.
1.蓝相液晶配方:同实施例1。
2.单体配方4FMM1
(1)24.5wt%2,2,3,3-甲基丙烯酸四氟丙酯(含氟基的压克力单体;2,2,3,3-Tetrafluoropropylmethacrylate;购自Aldrich),其具有下列化学式:
(2)24.5wt%三丙烯酸三羟甲基丙烷(三官能基非具液晶相压克力单体;trimethylolpropanetriacrylate;TMPTA;购自Aldrich);
(3)49wt%RM257(双官能基反应性具液晶相压克力单体;以及
(4)2wt%Irgacure651(光起始剂;2-羟基-4’-(2-羟基乙氧基)-2-甲基苯丙酮(2-Hydroxy-4’-(2-hydroxyethoxy)-2-methylpropiophenone);购自ciba)。
3.高分子稳定化配方调配与元件制作
配方:
90wt%蓝相液晶以及10wt%4FMM1。
元件制作:
液晶盒(Cell):购自Instec公司(平面内切换液晶盒,无聚酰亚胺配向膜,线宽/间距(line/space)=10μm/10μm,液晶盒距7.5μm)。
上述配方灌入后,在48℃下曝光10min分钟。
结果如图2所示,实施例2所得的光学元件的操作电压为操作电压为59V,迟滞(半高(halfheight))=0.8V。
实施例3.
1.蓝相液晶配方:同实施例1。
2.单体配方6FMM1
(1)24.5wt%甲基丙烯酸三氟甲基三氟乙酯(含氟基的压克力单体;1H-1-(trifluoromethyl)trifluoroethylmethacrylate;购自Aldrich),其具有下列化学式:
(2)24.5wt%三丙烯酸三羟甲基丙烷(三官能基非具液晶相压克力单体;trimethylolpropanetriacrylate;TMPTA;购自Aldrich);
(3)49wt%RM257(双官能基反应性具液晶相压克力单体;以及
(4)2wt%Irgacure651(光起始剂;2-羟基-4'-(2-羟基乙氧基)-2-甲基苯丙酮(2-Hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone);购自ciba)。
3.高分子稳定化配方调配与元件制作
配方:
90wt%蓝相液晶以及10wt%6FMM1。
元件制作:
液晶盒(Cell):购自Instec公司(平面内切换液晶盒,无聚酰亚胺配向膜,线宽/间距(line/space)=10μm/10μm,液晶盒距7.5μm)。
上述配方灌入后,在49°C下曝光10分钟。
结果如图2所示,实施例3所得的光学元件的操作电压为操作电压为60V,迟滞(半高(halfheight))=0.5V。
比较例1.
1.蓝相液晶配方:同实施例1。
2.单体配方M1
(1)49wt%三丙烯酸三羟甲基丙烷(三官能基非具液晶相压克力单体;trimethylolpropanetriacrylate;TMPTA;购自Aldrich),其具有下列化学式:
(2)49wt%RM257(双官能基反应性具液晶相压克力单体;1,4-Bis-[4-(3-acryloyloxypropyloxy)benzoyloxy]-2-methylbenzene;购自Merck),其具有下列化学式:
以及
(3)2wt%Irgacure651(光起始剂;2-羟基-4’-(2-羟基乙氧基)-2-甲基苯丙酮(2-Hydroxy-4’-(2-hydroxyethoxy)-2-methylpropiophenone);购自ciba)。
3.高分子稳定化配方调配与元件制作
配方:
90wt%蓝相液晶以及10wt%M1。
元件制作:
液晶盒(Cell):购自Instec公司(平面内切换液晶盒,无聚酰亚胺配向膜,线宽/间距(line/space)=10μm/10μm,液晶盒距7.5μm)。
上述配方灌入后,在43°C下曝光10分钟。
结果如图2所示,比较例1所得的光学元件的操作电压为68V,迟滞(半高(halfheight))=3.5V。表1(如下)为比较各实施例及比较例知操作电压及迟滞的结果。
表1
参照图2及表1可知,本发明实施例利用含氟基压克力单体形成的高分子网络,可以降低操作电压,减少迟滞。
在实施例1~3中,高分子稳定化的光学各向同性液晶配方的操作温度的范围约介于20~63°C,可扩大光学各向同性液晶元件操作温度的范围。
所公开的实施例即是针对高分子稳定化的光学各向同性液晶配方的操作电压过高与迟滞现象进行改善。利用包含至少一种含氟基的压克力单体的高分子网络帮助光学各向同性液晶配方的稳定化,以降低整体操作电压,减少迟滞现象产生。
虽然本发明已以多个优选实施例披露如上,然其并非用以限定本发明,任何本发明所属技术领域中的技术人员,在不脱离本发明的精神和范围内,应可作任意更改与润饰。因此,本发明的保护范围应以所附权利要求书限定的范围为准。
Claims (10)
1.一种高分子稳定化的光学各向同性液晶配方,包括:
50~99.5重量份的光学各向同性液晶材料;以及
0.5~50重量份的高分子,
其中该高分子包括由具液晶相压克力单体或/和非具液晶相压克力单体、以及含氟基的压克力单体所聚合而成的高分子,
其中该具液晶相压克力单体具有下列化学式:R-S-M-P或R-S-M-S-R,
其中,R为含甲基丙烯酸酯类的官能基或含丙烯酸酯类的官能基;S为柔软键,包括单键、亚烷基-(CH2)m-或亚烷氧基-O(CH2)n-,其中m、n为1至12;P为C1至C12的烷基、C1至C12的烷氧基或氰基;-M-具有下列化学式:
其中,
L为单键或-COO-、-CH2O-、-CONH-、或-C=N-;
X为-H、-CH3、或-F;
B为取代或未取代的二价连接基,其中该二价连接基包括二价芳香环基、二价脂肪环基、或二价芳香环及/或二价脂肪环的组合所形成的二价连接基,
其中该二价芳香环及/或二价脂肪环的组合所形成的二价连接基的各环间以单键或连接基连接,
其中,该二价芳香环及该二价脂肪环可为杂环或碳环;
其中该非具液晶相压克力单体包括:单官能基非具液晶相压克力单体、双官能基非具液晶相压克力单体、多官能基非具液晶相压克力单体、或上述的组合,
其中该单官能基非具液晶相压克力单体包括丙烯酸乙酯、丙烯酸正丁酯、丙烯酸异丁酯、丙烯酸正己酯、丙烯酸正辛酯、丙烯酸十二烷基酯、丙烯酸2-乙基己基酯、3,5,5-三甲基己基丙烯酸酯、或前述的组合;该双官能基非具液晶相压克力单体包括1,3-丁二醇二丙烯酸酯、亚乙基二丙烯酸酯、或前述的组合;以及该多官能基非具液晶相压克力单体包括三丙烯酸三羟甲基丙烷;
其中含氟基的压克力单体包括甲基丙烯酸三氟甲基三氟乙酯、2,2,3,3-甲基丙烯酸四氟丙酯或甲基丙烯酸三氟甲基三氟乙酯。
2.如权利要求1所述的高分子稳定化的光学各向同性液晶配方,其中该高分子包括由:
10~90重量份的该具液晶相压克力单体或/和非具液晶相压克力单体;以及
1~90重量份的该含氟基的压克力单体所聚合而成的高分子。
3.如权利要求1所述的高分子稳定化的光学各向同性液晶配方,其中该具液晶相克力单体包括:单官能基具液晶相压克力单体、双官能基具液晶相压克力单体、多官能基具液晶相压克力单体、或上述的组合。
4.如权利要求3所述的高分子稳定化的光学各向同性液晶配方,其中该单官能基具液晶相压克力单体包括:
或前述的组合;
该双官能基具液晶相压克力单体包括:
或前述的组合;其中m介于1至12,X包括-H、-CH3、或-F。
5.如权利要求1所述的高分子稳定化的光学各向同性液晶配方,其中该光学各向同性液晶材料包含液晶分子与旋光物,以及该液晶分子与该旋光物的重量比为100:1至100:30。
6.如权利要求1或5所述的高分子稳定化的光学各向同性液晶配方,其中该光学各向同性液晶材料为蓝相液晶材料或各向同性相液晶材料。
7.如权利要求1所述的高分子稳定化的光学各向同性液晶配方,其中该光学各向同性液晶材料具有下列物理性质:双折射率为0.05~0.5;以及介电各向异性为3~250。
8.如权利要求5所述的高分子稳定化的光学各向同性液晶配方,其中该液晶分子包含呈现向列相、层列相、胆甾相的单液晶核或多液晶核的液晶分子。
9.如权利要求5所述的高分子稳定化的光学各向同性液晶配方,其中该液晶分子包含:棒状液晶、非棒状液晶、或前述的组合,其中该非棒状液晶包含弯曲形液晶、T形液晶、U形液晶、λ形液晶、盘状液晶、柱状液晶、或前述的组合。
10.一种光学各向同性液晶元件,包括一对基板、以及由该对基板所夹集的如权利要求1-9任一项所述的高分子稳定化的光学各向同性液晶配方,其中该对基板中至少一块基板为透明基板。
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