JP5109371B2 - 垂直配向用液晶配向剤、液晶配向膜及びそれを用いた液晶表示素子 - Google Patents
垂直配向用液晶配向剤、液晶配向膜及びそれを用いた液晶表示素子 Download PDFInfo
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- JP5109371B2 JP5109371B2 JP2006550808A JP2006550808A JP5109371B2 JP 5109371 B2 JP5109371 B2 JP 5109371B2 JP 2006550808 A JP2006550808 A JP 2006550808A JP 2006550808 A JP2006550808 A JP 2006550808A JP 5109371 B2 JP5109371 B2 JP 5109371B2
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- liquid crystal
- aligning agent
- crystal aligning
- vertical alignment
- polyamic acid
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- 239000004973 liquid crystal related substance Substances 0.000 title claims description 136
- 239000003795 chemical substances by application Substances 0.000 title claims description 52
- 229920005575 poly(amic acid) Polymers 0.000 claims description 63
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 50
- 150000004985 diamines Chemical class 0.000 claims description 36
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 claims description 31
- 239000002904 solvent Substances 0.000 claims description 30
- 229920001721 polyimide Polymers 0.000 claims description 23
- 239000004642 Polyimide Substances 0.000 claims description 21
- 125000006158 tetracarboxylic acid group Chemical group 0.000 claims description 20
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 14
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 8
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 7
- QCAHUFWKIQLBNB-UHFFFAOYSA-N 3-(3-methoxypropoxy)propan-1-ol Chemical compound COCCCOCCCO QCAHUFWKIQLBNB-UHFFFAOYSA-N 0.000 claims description 6
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical group NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- ZGDMDBHLKNQPSD-UHFFFAOYSA-N 2-amino-5-(4-amino-3-hydroxyphenyl)phenol Chemical group C1=C(O)C(N)=CC=C1C1=CC=C(N)C(O)=C1 ZGDMDBHLKNQPSD-UHFFFAOYSA-N 0.000 claims description 4
- JRBJSXQPQWSCCF-UHFFFAOYSA-N 3,3'-Dimethoxybenzidine Chemical group C1=C(N)C(OC)=CC(C=2C=C(OC)C(N)=CC=2)=C1 JRBJSXQPQWSCCF-UHFFFAOYSA-N 0.000 claims description 4
- QBSMHWVGUPQNJJ-UHFFFAOYSA-N 4-[4-(4-aminophenyl)phenyl]aniline Chemical compound C1=CC(N)=CC=C1C1=CC=C(C=2C=CC(N)=CC=2)C=C1 QBSMHWVGUPQNJJ-UHFFFAOYSA-N 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- KQSABULTKYLFEV-UHFFFAOYSA-N naphthalene-1,5-diamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1N KQSABULTKYLFEV-UHFFFAOYSA-N 0.000 claims description 4
- 125000000962 organic group Chemical group 0.000 claims description 4
- NUIURNJTPRWVAP-UHFFFAOYSA-N 3,3'-Dimethylbenzidine Chemical group C1=C(N)C(C)=CC(C=2C=C(C)C(N)=CC=2)=C1 NUIURNJTPRWVAP-UHFFFAOYSA-N 0.000 claims description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims 1
- 150000008064 anhydrides Chemical class 0.000 claims 1
- 150000000000 tetracarboxylic acids Chemical class 0.000 claims 1
- 239000000243 solution Substances 0.000 description 40
- 239000010408 film Substances 0.000 description 33
- 239000000758 substrate Substances 0.000 description 28
- 210000002858 crystal cell Anatomy 0.000 description 22
- 238000006243 chemical reaction Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 13
- 238000000576 coating method Methods 0.000 description 13
- 239000003960 organic solvent Substances 0.000 description 13
- 230000007547 defect Effects 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 10
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 7
- -1 4-aminophenoxy Chemical group 0.000 description 6
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 150000008065 acid anhydrides Chemical class 0.000 description 4
- 238000006358 imidation reaction Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 4
- HHVIBTZHLRERCL-UHFFFAOYSA-N sulfonyldimethane Chemical compound CS(C)(=O)=O HHVIBTZHLRERCL-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- YGYCECQIOXZODZ-UHFFFAOYSA-N 4415-87-6 Chemical compound O=C1OC(=O)C2C1C1C(=O)OC(=O)C12 YGYCECQIOXZODZ-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004988 Nematic liquid crystal Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical group C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- AVQQQNCBBIEMEU-UHFFFAOYSA-N 1,1,3,3-tetramethylurea Chemical compound CN(C)C(=O)N(C)C AVQQQNCBBIEMEU-UHFFFAOYSA-N 0.000 description 2
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 2
- AOBIOSPNXBMOAT-UHFFFAOYSA-N 2-[2-(oxiran-2-ylmethoxy)ethoxymethyl]oxirane Chemical compound C1OC1COCCOCC1CO1 AOBIOSPNXBMOAT-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 0 N*1/C=C/C=*/C/C=C1 Chemical compound N*1/C=C/C=*/C/C=C1 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- ZWXPDGCFMMFNRW-UHFFFAOYSA-N N-methylcaprolactam Chemical compound CN1CCCCCC1=O ZWXPDGCFMMFNRW-UHFFFAOYSA-N 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920006158 high molecular weight polymer Polymers 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- FHBXQJDYHHJCIF-UHFFFAOYSA-N (2,3-diaminophenyl)-phenylmethanone Chemical compound NC1=CC=CC(C(=O)C=2C=CC=CC=2)=C1N FHBXQJDYHHJCIF-UHFFFAOYSA-N 0.000 description 1
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- ISXCYFNKGRXZFQ-UHFFFAOYSA-N 1,1-diphenylpropane-2,2-diamine Chemical compound C=1C=CC=CC=1C(C(N)(N)C)C1=CC=CC=C1 ISXCYFNKGRXZFQ-UHFFFAOYSA-N 0.000 description 1
- JDGFELYPUWNNGR-UHFFFAOYSA-N 1,2,3,3a,4,5,6,6a-octahydropentalene-1,3,4,6-tetracarboxylic acid Chemical compound OC(=O)C1CC(C(O)=O)C2C(C(=O)O)CC(C(O)=O)C21 JDGFELYPUWNNGR-UHFFFAOYSA-N 0.000 description 1
- RDOWUHKQVFEIIN-UHFFFAOYSA-N 1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalene-1,3,5,7-tetracarboxylic acid Chemical compound OC(=O)C1CC(C(=O)O)CC2C1CC(C(O)=O)CC2C(O)=O RDOWUHKQVFEIIN-UHFFFAOYSA-N 0.000 description 1
- DQIMGVGOYZOPBZ-UHFFFAOYSA-N 1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalene-1,3,6,8-tetracarboxylic acid Chemical compound C1C(C(O)=O)CC(C(O)=O)C2C(C(O)=O)CC(C(=O)O)CC21 DQIMGVGOYZOPBZ-UHFFFAOYSA-N 0.000 description 1
- MQQRFOXFIPBFOV-UHFFFAOYSA-N 1,2-dimethylcyclobutane-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)C1(C)C(C(O)=O)C(C(O)=O)C1(C)C(O)=O MQQRFOXFIPBFOV-UHFFFAOYSA-N 0.000 description 1
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 1
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- DQVRVXRIKVWXQH-UHFFFAOYSA-N 1,8-bis(oxiran-2-yl)-4,6-bis(oxiran-2-ylmethyl)octane-3,5-diol Chemical compound C1OC1CC(C(O)C(CCC1OC1)CC1OC1)C(O)CCC1CO1 DQVRVXRIKVWXQH-UHFFFAOYSA-N 0.000 description 1
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- KBRVQAUYZUFKAJ-UHFFFAOYSA-N 1-trimethoxysilylpropan-2-amine Chemical compound CO[Si](OC)(OC)CC(C)N KBRVQAUYZUFKAJ-UHFFFAOYSA-N 0.000 description 1
- CASXWXSTPJILAM-UHFFFAOYSA-N 2,3,3a,4,5,6,7,7a-octahydro-1h-indene-1,3,4,6-tetracarboxylic acid Chemical compound C1C(C(O)=O)CC(C(O)=O)C2C1C(C(=O)O)CC2C(O)=O CASXWXSTPJILAM-UHFFFAOYSA-N 0.000 description 1
- IVIDDMGBRCPGLJ-UHFFFAOYSA-N 2,3-bis(oxiran-2-ylmethoxy)propan-1-ol Chemical compound C1OC1COC(CO)COCC1CO1 IVIDDMGBRCPGLJ-UHFFFAOYSA-N 0.000 description 1
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- HDPLHDGYGLENEI-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)propan-2-yloxymethyl]oxirane Chemical compound C1OC1COC(C)COCC1CO1 HDPLHDGYGLENEI-UHFFFAOYSA-N 0.000 description 1
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 description 1
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- 238000007865 diluting Methods 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
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- 125000003700 epoxy group Chemical group 0.000 description 1
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- 230000005669 field effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
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- 150000002576 ketones Chemical class 0.000 description 1
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- LPEKGGXMPWTOCB-UHFFFAOYSA-N methyl 2-hydroxypropionate Chemical compound COC(=O)C(C)O LPEKGGXMPWTOCB-UHFFFAOYSA-N 0.000 description 1
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- 239000000178 monomer Substances 0.000 description 1
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- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 description 1
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- LIBWSLLLJZULCP-UHFFFAOYSA-N n-(3-triethoxysilylpropyl)aniline Chemical compound CCO[Si](OCC)(OCC)CCCNC1=CC=CC=C1 LIBWSLLLJZULCP-UHFFFAOYSA-N 0.000 description 1
- KBJFYLLAMSZSOG-UHFFFAOYSA-N n-(3-trimethoxysilylpropyl)aniline Chemical compound CO[Si](OC)(OC)CCCNC1=CC=CC=C1 KBJFYLLAMSZSOG-UHFFFAOYSA-N 0.000 description 1
- ILRLVKWBBFWKTN-UHFFFAOYSA-N n-benzyl-3-triethoxysilylpropan-1-amine Chemical compound CCO[Si](OCC)(OCC)CCCNCC1=CC=CC=C1 ILRLVKWBBFWKTN-UHFFFAOYSA-N 0.000 description 1
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- 229920001778 nylon Polymers 0.000 description 1
- UFOIOXZLTXNHQH-UHFFFAOYSA-N oxolane-2,3,4,5-tetracarboxylic acid Chemical compound OC(=O)C1OC(C(O)=O)C(C(O)=O)C1C(O)=O UFOIOXZLTXNHQH-UHFFFAOYSA-N 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
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- 239000000843 powder Substances 0.000 description 1
- ILVGAIQLOCKNQA-UHFFFAOYSA-N propyl 2-hydroxypropanoate Chemical compound CCCOC(=O)C(C)O ILVGAIQLOCKNQA-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 229940116423 propylene glycol diacetate Drugs 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 125000006160 pyromellitic dianhydride group Chemical group 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 1
- FVHPPQILUTTWCV-UHFFFAOYSA-N undecane-1,3,7,9-tetracarboxylic acid Chemical compound CCC(C(O)=O)CC(C(O)=O)CCCC(C(O)=O)CCC(O)=O FVHPPQILUTTWCV-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- 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
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
- C09K19/56—Aligning agents
-
- 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
- G02F1/133—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
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
- G02F1/133723—Polyimide, polyamide-imide
-
- 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
- G02F1/133742—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for homeotropic alignment
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Liquid Crystal (AREA)
Description
近年、液晶表示素子の大型化に伴い、表示素子の画質に大きく影響を与える表示ムラが、これまで以上に問題視されている。そのため、液晶配向膜に求められる性能も、液晶の垂直配向性が良好で、焼き付きが少ないことだけではなく、表示素子面内において表示ムラを生じさせないことが求められている。
即ち、本発明は、以下の特徴を有する要旨を有するものである。
1.ポリアミック酸及び該ポリアミック酸を脱水閉環したポリイミドのうち少なくとも一方と、溶媒とを含有する液晶配向剤であって、該ポリアミック酸が、式(1)で表されるジアミンを20〜80モル%含有するジアミン成分と、式(2)で表される4つのカルボニル基が芳香環構造に直接結合したテトラカルボン酸二無水物を20〜100モル%含有するテトラカルボン酸二無水物成分とを反応して得られることを特徴とする垂直配向用液晶配向剤。
2.液晶配向剤中における、ポリアミック酸及び該ポリアミック酸を脱水閉環したポリイミドの合計濃度が2〜10重量%である上記1に記載の垂直配向用液晶配向剤。
3.式(1)で表されるジアミンが、後記する、式(6)、式(7)又は式(8)で表されるジアミンである上記1又は2に記載の垂直配向用液晶配向剤。
4.ジアミン成分が、式(1)で表されるジアミンの他に、p−フェニレンジアミン、1,4−ビス(4−アミノフェニル)ベンゼン、1,5−ナフタレンジアミン、4,4’−ジアミノビフェニル、3,3’−ジメチル−4,4’−ジアミノビフェニル、3,3’−ジメトキシ−4,4’−ジアミノビフェニル、及び3,3’−ジヒドロキシ−4,4’−ジアミノビフェニルからなる群から選ばれる少なくとも1種のジアミンを含有する上記1〜3のいずれかに記載の垂直配向用液晶配向剤。
5.溶媒が、N−メチル−2−ピロリドン及びγ−ブチロラクトンうちの少なくとも一方を含有する上記1〜4のいずれかに記載の垂直配向用液晶配向剤。
6.溶媒が、更に、ブチルセロソルブ及びジプロピレングリコールモノメチルエーテルのうちの少なくとも一方を含有する上記5に記載の垂直配向用液晶配向剤。
7.上記1〜6のいずれかに記載の垂直配向用液晶配向剤を用いて得られる液晶配向膜。
8.上記7に記載の液晶配向膜を用いる液晶表示素子。
本発明の垂直配向用液晶配向剤は、ポリアミック酸及び該ポリアミック酸を脱水閉環したポリイミドのうち少なくとも一方と、溶媒とを含有する。そして、該ポリアミック酸が、式(1)で表されるジアミンを20〜80モル%含有するジアミン成分と、4つのカルボニル基が芳香環構造に直接結合したテトラカルボン酸二無水物を20〜100モル%含有するテトラカルボン酸二無水物成分とを反応して得られることを特徴とする。
本発明においては、上記の式(2)で表される4つのカルボニル基が芳香環構造に直接結合したテトラカルボン酸二無水物を、テトラカルボン酸二無水物成分の20モル%以上含有することで、液晶表示素子の焼き付きを起こしにくいという効果を得ることができる。この点においては50モル%以上がより好ましい。
その他のテトラカルボン酸二無水物としては、脂肪族テトラカルボン酸二無水物、脂環式テトラカルボン酸二無水物や4つのカルボニル基が芳香環構造に直接結合したテトラカルボン酸二無水物以外の芳香族テトラカルボン酸二無水物等が挙げられるが、特に限定されない。
で表されるジアミンを全ジアミン成分中20〜80モル%含有する。式(1)で表されるジアミンの含有量が20モル%以上で良好な液晶配向性を得られるが、好ましくは25モル%以上であり、より好ましくは30モル%以上である。また、式(1)で表されるジアミンの含有量が80モル%以下で液晶配向剤の良好な印刷性を得られるが、好ましくは70モル%以下であり、より好ましくは50モル%以下である。
上記ジアミンの具体例としては、以下の式(4)〜(12)で示されるジアミン等が挙げられる。なかでも、式(6)、式(7)又は式(8)で示されるジアミンが好ましい。
テトラカルボン酸二無水物成分とジアミン成分とを有機溶媒中で混合させる方法としては、ジアミン成分を有機溶媒に分散あるいは溶解させた溶液を攪拌させ、テトラカルボン酸二無水物成分をそのまま、又は有機溶媒に分散あるいは溶解させて添加する方法、逆にテトラカルボン酸二無水物成分を有機溶媒に分散あるいは溶解させた溶液にジアミン成分を添加する方法、テトラカルボン酸二無水物成分とジアミン成分とを交互に添加する方法などが挙げられる。また、テトラカルボン酸二無水物成分又はジアミン成分が複数種の化合物からなる場合は、これらの成分をあらかじめ混合した状態で反応させてもよく、個別に順次反応させてもよい。
上記の塩基性触媒としてはピリジン、トリエチルアミン、トリメチルアミン、トリブチルアミン、トリオクチルアミン等を挙げることができ、中でもピリジンは反応を進行させるのに適度な塩基性を持つので好ましい。また、酸無水物としては無水酢酸、無水トリメリット酸、無水ピロメリット酸などを挙げることができ、中でも無水酢酸を用いると反応終了後の精製が容易となるので好ましい。有機溶媒としては前述したポリアミック酸重合反応時に用いる溶媒を使用することができる。化学的イミド化によるイミド化率は、触媒量と反応温度、反応時間を調節することにより制御することができる。
また、ポリアミック酸も同様の操作で沈殿回収及び精製することもできる。ポリアミック酸の重合に用いた溶媒を本発明の液晶配向剤中に含有させたくない場合や、反応溶液中に未反応のモノマー成分や不純物が存在する場合には、この沈殿回収及び精製を行えばよい。
液晶配向膜の厚みは任意であるが、厚すぎると液晶表示素子の消費電力の面で不利となり、薄すぎると液晶表示素子の信頼性が低下する場合があるので、好ましくは50〜3000Å、より好ましくは100〜1000Åである。
以下に実施例を挙げ、本発明を更に詳しく説明するが、本発明はこれらに限定されるものではない。
ピロメリット酸二無水物8.724g(0.04mol)、p−フェニレンジアミン(以下p−PDと略す)2.877g(0.0266mol)及び4−[4−(4−トランス−n−へプチルシクロヘキシル)フェノキシ]−1,3−ジアミノべンゼン4.567g(0.012mol)をN−メチル−2−ピロリドン(以下、NMPと称す。)91.6g中、室温で3時間反応させ、ポリアミック酸溶液を調製した。得られたポリアミック酸溶液の還元粘度は0.7dl/g(30℃のNMP中、濃度0.5g/dl)であった。
このポリアミック酸溶液25gにNMP20gとブチルセロソルブ(以下BCと称す。)30gを添加して、固形分濃度5%のポリアミック酸溶液を調製し、液晶配向剤とした。
ピロメリット酸二無水物4.362g(0.02mol)、p−PD3.028g(0.028mol)及び4−[4−(4−トランス−n−へプチルシクロヘキシル)フェノキシ]−1,3−ジアミノべンゼン4.567g(0.012mol)をNMP43.88g中、室温で3時間反応させた後、1,2,3,4−シクロブタンテトラカルボン酸二無水物3.53g(0.018mol)をNMP87.76gとともに加えて3時間反応を行い、ポリアミック酸溶液を調製した。得られたポリアミック酸溶液の還元粘度は0.6dl/g(30℃のNMP中、濃度0.5g/dl)であった。このポリアミック酸溶液25gにNMP20gとBC30gを添加して、固形分濃度5%のポリアミック酸溶液を調製し、液晶配向剤とした。
1,2,3,4−シクロブタンテトラカルボン酸二無水物7.844g(0.04mol)、p−PD2.877g(0.0266mol)及び4−[4−(4−トランス−n−へプチルシクロヘキシル)フェノキシ]−1,3−ジアミノべンゼン4.567g(0.012mol)をNMP86.6g中、室温で3時間反応させ、ポリアミック酸溶液を調製した。得られたポリアミック酸溶液の還元粘度は0.7dl/g(30℃のNMP中、濃度0.5g/dl)であった。このポリアミック酸溶液25gにNMP20gとBC30gを添加して、固形分濃度5%のポリアミック酸溶液を調製した。
ピロメリット酸二無水物8.724g(0.04mol)、p−PD2.877g(0.0266mol)及び1,3−ジアミノ−4−オクタデシルオキシベンゼン4.52g(0.012mol)をNMP91.4g中、室温で3時間反応させ、ポリアミック酸溶液を調製した。得られたポリアミック酸溶液の還元粘度は0.7dl/g(30℃のNMP中、濃度0.5g/dl)であった。このポリアミック酸溶液25gにNMP20gとBC30gを添加して、固形分濃度5%のポリアミック酸溶液を調製した。
ピロメリット酸二無水物8.724g(0.04mol)、及び4−[4−(4−トランス−n−へプチルシクロヘキシル)フェノキシ]−1,3−ジアミノべンゼン15.22g(0.04mol)をNMP135.7g中、室温で3時間反応させ、ポリアミック酸溶液を調製した。得られたポリアミック酸溶液の還元粘度は0.7dl/g(30℃のNMP中、濃度0.5g/dl)であった。このポリアミック酸溶液25gにNMP20gとBC30gを添加して、固形分濃度5%のポリアミック酸溶液を調製した。
なお、2004年12月28日に出願された日本特許出願2004−378551号の明細書、特許請求の範囲、及び要約書の全内容をここに引用し、本発明の明細書の開示として、取り入れるものである。
Claims (8)
- 液晶配向剤中における、ポリアミック酸及び該ポリアミック酸を脱水閉環したポリイミドの合計濃度が2〜10重量%である請求項1に記載の垂直配向用液晶配向剤。
- ジアミン成分が、式(1)で表されるジアミンの他に、p−フェニレンジアミン、1,4−ビス(4−アミノフェニル)ベンゼン、1,5−ナフタレンジアミン、−4,4’−ジアミノビフェニル、3,3’−ジメチル−4,4’−ジアミノビフェニル、3,3’−ジメトキシ−4,4’−ジアミノビフェニル、及び3,3’−ジヒドロキシ−4,4’−ジアミノビフェニルからなる群から選ばれる少なくとも1種のジアミンを含有する請求項1〜3のいずれかに記載の垂直配向用液晶配向剤。
- 溶媒が、N−メチル−2−ピロリドン及びγ−ブチロラクトンうちの少なくとも一方を含有する請求項1〜4のいずれか1項に記載の垂直配向用液晶配向剤。
- 溶媒が、更に、ブチルセロソルブ及びジプロピレングリコールモノメチルエーテルのうちの少なくとも一方を含有する請求項5に記載の垂直配向用液晶配向剤。
- 請求項1〜6のいずれか1項に記載の垂直配向用液晶配向剤を用いて得られる液晶配向膜。
- 請求項7に記載の液晶配向膜を用いる液晶表示素子。
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WO2018159733A1 (ja) | 2017-03-02 | 2018-09-07 | 日産化学株式会社 | 液晶配向剤、液晶配向膜及び液晶表示素子 |
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