WO2008105564A1 - 液晶配向剤および液晶表示素子 - Google Patents
液晶配向剤および液晶表示素子 Download PDFInfo
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- WO2008105564A1 WO2008105564A1 PCT/JP2008/054108 JP2008054108W WO2008105564A1 WO 2008105564 A1 WO2008105564 A1 WO 2008105564A1 JP 2008054108 W JP2008054108 W JP 2008054108W WO 2008105564 A1 WO2008105564 A1 WO 2008105564A1
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- Prior art keywords
- liquid crystal
- aligning agent
- group
- crystal aligning
- polymer
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- PLZVEHJLHYMBBY-UHFFFAOYSA-N Tetradecylamine Chemical compound CCCCCCCCCCCCCCN PLZVEHJLHYMBBY-UHFFFAOYSA-N 0.000 description 1
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- NJYZCEFQAIUHSD-UHFFFAOYSA-N acetoguanamine Chemical compound CC1=NC(N)=NC(N)=N1 NJYZCEFQAIUHSD-UHFFFAOYSA-N 0.000 description 1
- 125000004018 acid anhydride group Chemical group 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- HOPRXXXSABQWAV-UHFFFAOYSA-N anhydrous collidine Natural products CC1=CC=NC(C)=C1C HOPRXXXSABQWAV-UHFFFAOYSA-N 0.000 description 1
- 150000004984 aromatic diamines Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 125000005337 azoxy group Chemical group [N+]([O-])(=N*)* 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- NOWBCCCXVKRUCT-UHFFFAOYSA-N bicyclo[2.2.1]heptane-2,3,5-tricarboxylic acid Chemical compound C1C2C(C(=O)O)CC1C(C(O)=O)C2C(O)=O NOWBCCCXVKRUCT-UHFFFAOYSA-N 0.000 description 1
- BKDVBBSUAGJUBA-UHFFFAOYSA-N bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic acid Chemical compound C1=CC2C(C(O)=O)C(C(=O)O)C1C(C(O)=O)C2C(O)=O BKDVBBSUAGJUBA-UHFFFAOYSA-N 0.000 description 1
- JWXLCQHWBFHMOI-NIQMUPOESA-N bis[(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] carbonate Chemical compound C([C@@H]12)C[C@]3(C)[C@@H]([C@H](C)CCCC(C)C)CC[C@H]3[C@@H]1CC=C(C1)[C@]2(C)CC[C@@H]1OC(=O)O[C@@H]1CC2=CC[C@H]3[C@@H]4CC[C@H]([C@H](C)CCCC(C)C)[C@@]4(C)CC[C@@H]3[C@@]2(C)CC1 JWXLCQHWBFHMOI-NIQMUPOESA-N 0.000 description 1
- 125000006367 bivalent amino carbonyl group Chemical group [H]N([*:1])C([*:2])=O 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- WKDNYTOXBCRNPV-UHFFFAOYSA-N bpda Chemical compound C1=C2C(=O)OC(=O)C2=CC(C=2C=C3C(=O)OC(C3=CC=2)=O)=C1 WKDNYTOXBCRNPV-UHFFFAOYSA-N 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
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- UTBIMNXEDGNJFE-UHFFFAOYSA-N collidine Natural products CC1=CC=C(C)C(C)=N1 UTBIMNXEDGNJFE-UHFFFAOYSA-N 0.000 description 1
- TXWRERCHRDBNLG-UHFFFAOYSA-N cubane Chemical compound C12C3C4C1C1C4C3C12 TXWRERCHRDBNLG-UHFFFAOYSA-N 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- VKIRRGRTJUUZHS-UHFFFAOYSA-N cyclohexane-1,4-diamine Chemical compound NC1CCC(N)CC1 VKIRRGRTJUUZHS-UHFFFAOYSA-N 0.000 description 1
- IGARGHRYKHJQSM-UHFFFAOYSA-N cyclohexylbenzene Chemical compound C1CCCCC1C1=CC=CC=C1 IGARGHRYKHJQSM-UHFFFAOYSA-N 0.000 description 1
- NLUNLVTVUDIHFE-UHFFFAOYSA-N cyclooctylcyclooctane Chemical compound C1CCCCCCC1C1CCCCCCC1 NLUNLVTVUDIHFE-UHFFFAOYSA-N 0.000 description 1
- WOSVXXBNNCUXMT-UHFFFAOYSA-N cyclopentane-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)C1CC(C(O)=O)C(C(O)=O)C1C(O)=O WOSVXXBNNCUXMT-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 125000004427 diamine group Chemical group 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 229940019778 diethylene glycol diethyl ether Drugs 0.000 description 1
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- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- UHKJHMOIRYZSTH-UHFFFAOYSA-N ethyl 2-ethoxypropanoate Chemical compound CCOC(C)C(=O)OCC UHKJHMOIRYZSTH-UHFFFAOYSA-N 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000005329 float glass Substances 0.000 description 1
- 125000004216 fluoromethyl group Chemical group [H]C([H])(F)* 0.000 description 1
- PKWIYNIDEDLDCJ-UHFFFAOYSA-N guanazole Chemical compound NC1=NNC(N)=N1 PKWIYNIDEDLDCJ-UHFFFAOYSA-N 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- KAJZYANLDWUIES-UHFFFAOYSA-N heptadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCCN KAJZYANLDWUIES-UHFFFAOYSA-N 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- QJPWUUJVYOJNMH-UHFFFAOYSA-N homoserine lactone Chemical compound NC1CCOC1=O QJPWUUJVYOJNMH-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- BUHXFUSLEBPCEB-UHFFFAOYSA-N icosan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCCCN BUHXFUSLEBPCEB-UHFFFAOYSA-N 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229940018564 m-phenylenediamine Drugs 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- OETHQSJEHLVLGH-UHFFFAOYSA-N metformin hydrochloride Chemical compound Cl.CN(C)C(=N)N=C(N)N OETHQSJEHLVLGH-UHFFFAOYSA-N 0.000 description 1
- BDJSOPWXYLFTNW-UHFFFAOYSA-N methyl 3-methoxypropanoate Chemical compound COCCC(=O)OC BDJSOPWXYLFTNW-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- UBBUHNHUKKIQAW-UHFFFAOYSA-N n-octyldecan-1-amine Chemical compound CCCCCCCCCCNCCCCCCCC UBBUHNHUKKIQAW-UHFFFAOYSA-N 0.000 description 1
- DOBFTMLCEYUAQC-UHFFFAOYSA-N naphthalene-2,3,6,7-tetracarboxylic acid Chemical compound OC(=O)C1=C(C(O)=O)C=C2C=C(C(O)=O)C(C(=O)O)=CC2=C1 DOBFTMLCEYUAQC-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- FJDUDHYHRVPMJZ-UHFFFAOYSA-N nonan-1-amine Chemical compound CCCCCCCCCN FJDUDHYHRVPMJZ-UHFFFAOYSA-N 0.000 description 1
- SXJVFQLYZSNZBT-UHFFFAOYSA-N nonane-1,9-diamine Chemical compound NCCCCCCCCCN SXJVFQLYZSNZBT-UHFFFAOYSA-N 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- OEIJHBUUFURJLI-UHFFFAOYSA-N octane-1,8-diol Chemical compound OCCCCCCCCO OEIJHBUUFURJLI-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 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
- 238000000059 patterning Methods 0.000 description 1
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- 150000002989 phenols Chemical class 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- DGTNSSLYPYDJGL-UHFFFAOYSA-N phenyl isocyanate Chemical compound O=C=NC1=CC=CC=C1 DGTNSSLYPYDJGL-UHFFFAOYSA-N 0.000 description 1
- YYMLKMKPDYKLGM-UHFFFAOYSA-N phenylphosphane phthalic acid Chemical compound C1(=CC=CC=C1)P.C(C=1C(C(=O)O)=CC=CC1)(=O)O.C(C=1C(C(=O)O)=CC=CC1)(=O)O YYMLKMKPDYKLGM-UHFFFAOYSA-N 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- WYVAMUWZEOHJOQ-UHFFFAOYSA-N propionic anhydride Chemical compound CCC(=O)OC(=O)CC WYVAMUWZEOHJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- ZZYXNRREDYWPLN-UHFFFAOYSA-N pyridine-2,3-diamine Chemical compound NC1=CC=CN=C1N ZZYXNRREDYWPLN-UHFFFAOYSA-N 0.000 description 1
- IKOJLAQARDQALA-UHFFFAOYSA-N pyridine-2,3-diamine 1H-pyrimidine-2,4-dione Chemical compound Nc1cccnc1N.O=c1cc[nH]c(=O)[nH]1 IKOJLAQARDQALA-UHFFFAOYSA-N 0.000 description 1
- YAAWASYJIRZXSZ-UHFFFAOYSA-N pyrimidine-2,4-diamine Chemical compound NC1=CC=NC(N)=N1 YAAWASYJIRZXSZ-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000013558 reference substance Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- GFYHSKONPJXCDE-UHFFFAOYSA-N sym-collidine Natural products CC1=CN=C(C)C(C)=C1 GFYHSKONPJXCDE-UHFFFAOYSA-N 0.000 description 1
- BEKDZRXUWYOOPU-UHFFFAOYSA-N tert-butyl n-(4-chlorobutyl)carbamate Chemical compound CC(C)(C)OC(=O)NCCCCCl BEKDZRXUWYOOPU-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- ABVVEAHYODGCLZ-UHFFFAOYSA-N tridecan-1-amine Chemical compound CCCCCCCCCCCCCN ABVVEAHYODGCLZ-UHFFFAOYSA-N 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 125000005591 trimellitate group Chemical group 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- QFKMMXYLAPZKIB-UHFFFAOYSA-N undecan-1-amine Chemical compound CCCCCCCCCCCN QFKMMXYLAPZKIB-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- 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
-
- 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
- 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
- C08G73/1067—Wholly aromatic polyimides, i.e. having both tetracarboxylic and diamino moieties aromatically bound
Definitions
- Liquid crystal aligning agent and liquid crystal display element Liquid crystal aligning agent and liquid crystal display element
- the present invention relates to a novel liquid crystal aligning agent and a liquid crystal display element. More specifically, it has a structure derived from a specific aliphatic tetracarboxylic dianhydride, has excellent coating properties when forming a liquid crystal alignment film, exhibits a high voltage holding ratio, and is displayed on the liquid crystal panel by light or heat.
- a novel liquid crystal aligning agent that can suppress a decrease in the voltage holding ratio when a resist is applied for a long time or a liquid crystal panel is driven for a long time, and a document formed from the liquid crystal aligning agent.
- the present invention relates to a liquid crystal alignment film comprising the liquid crystal alignment film.
- liquid crystal display elements represented by liquid crystal displays from the viewpoint of space saving and low power consumption. Watches, portable games, word processors, notebook computers, car navigation systems, camcorders, etc. , PDAs, digital cameras, mobile phones, various monitors, LCD TVs, etc. are being applied in various fields, and active development is continuing.
- the liquid crystal display element nematic liquid crystal having positive dielectric anisotropy is used, and the major axis of the liquid crystal molecules is continuously twisted by 90 ° from one substrate to the other. Twisted Nematic (LCD) elements and STN (Super Twisted Nematic) LCD elements, which have higher contrast than TN liquid crystal display elements, have been widely used.
- VA vertical alignment
- IPS In Plane Switching
- OBC Optically compensated bend
- a member for controlling the alignment of the liquid crystal is a liquid crystal alignment film.
- liquid crystal The alignment film is obtained by applying a liquid crystal alignment agent containing a polyamic acid or an imidized polymer obtained by imidizing the polyamic acid by a mouthful method, a spinner method, a flexographic printing method, an inkjet method, or the like. It is formed by applying to the substrate and then heating and drying the coated surface.
- uneven coating of the liquid crystal alignment film directly leads to poor alignment of the liquid crystal, and causes a significant deterioration in the display quality of the liquid crystal panel.
- the liquid crystal alignment film has a high voltage holding ratio, reliability of the voltage holding ratio, and liquid crystal alignment to achieve high-quality display performance. There is an urgent need to further improve the coating properties during film formation. Disclosure of the invention
- the object of the present invention is to exhibit good coating properties and high initial voltage holding ratio, and to apply light and thermal stress to a liquid crystal display element.
- Applying or driving a liquid crystal display element for a long time displays a beautiful image over a long period of time by a liquid crystal aligning agent that gives a liquid crystal aligning film with a small decrease in voltage holding ratio and a liquid crystal aligning film formed from the liquid crystal aligning agent LCD device capable of About.
- ⁇ 1 to! ⁇ 6 are each independently a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and m and n each independently represents an integer of 0 to 3.
- the above object of the present invention is achieved by a liquid crystal display device comprising a liquid crystal alignment film formed from the above liquid crystal aligning agent.
- liquid crystal aligning agent of the present invention good coating properties and high initial voltage holding ratio are exhibited, and voltage holding is possible even when light or heat stress is applied to the liquid crystal display element or the liquid crystal panel is driven for a long time.
- the liquid crystal aligning agent which gives the liquid crystal aligning film with a small fall of a rate is obtained.
- the polyamic acid used in the present invention is composed of one or more aliphatic tetracarboxylic dianhydrides represented by the above formula (1) and, if necessary, other tetracarboxylic dianhydrides and P-phenylene diene. It can be obtained by polyaddition reaction of an amine and, if necessary, other diamines.
- the imidized polymer used in the present invention can be obtained by dehydrating and ring-closing the polyamic acid.
- the liquid crystal aligning agent of the present invention includes a tetracarboxylic dianhydride represented by the above formula (1) as a tetracarboxylic dianhydride for synthesizing a polyamic acid and a Z or imidized polymer contained therein.
- a polyamic acid synthesized using a tetracarboxylic dianhydride represented by the above formula (1) is a tetracarboxylic dianhydride that has been conventionally studied in a baking process after application of a liquid crystal director.
- the use ratio of the tetracarboxylic dianhydride represented by the above formula (1) is preferably 5 to 100 mol%, more preferably 2 based on the total tetracarboxylic dianhydride. It is 5 to 100 mol%, particularly preferably 50 to 100 mol%.
- scales 1 to! ⁇ 6 are each independently a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, preferably a hydrogen atom or an alkyl group having 1 to 5 carbon atoms. Particularly preferred is a hydrogen atom or a methyl group.
- the tetracarboxylic dianhydrides represented by the above formula (1) can be used alone or in combination of two or more.
- Other tetracarboxylic dianhydrides that can be used include, for example, butane tetracarboxylic dianhydride, 1, 2, 3, 4-cyclobutane tetracarboxylic dianhydride, 1, 2-dimethyl-1, 2, 3 , 4-Cyclobutane tetra force sulfonic acid dianhydride, 1,3-dimethyl-1, 2, 3, 4-cyclobutane tetra force sulfonic acid dianhydride, 1, 3-dichloro-1, 2, 3, 4-cyclobutane tetra force Ruponic acid dianhydride, 1, 2, 3, 4-tetramethyl-1,2,3,4-cyclobutanetetracarboxylic dianhydride, 1,2,3,4-cyclopent
- R 15 and R 17 each represent a divalent organic group having an aromatic ring
- R 16 and R 18 each represent a hydrogen atom or an alkyl group
- 18 may be the same or different.
- 1,2,3,4-cyclobutanetetracarboxylic dianhydride 1: 3-dimethyl-1,2,3,4-cyclobutanetetracarboxylic dianhydride, 1, 2, 4 , 5-cyclohexanetetracarboxylic dianhydride, 2, 3, 5-tricarboxycyclopentylacetic acid dianhydride, 1, 3, 3 a, 4, 5, 9b-hexahydrone 5- (tetrahydro-1,2, 1-naphtho [1,2-c] furan 1,3-dione, 1,3,3a, 4,5,9 b-hexahydro-1-8-methyl-5- (tetrahydro-2 , 5-Dioxo-1-3-furanyl) 1-naphtho [1, 2-c] Furan 1,3-Dione, 3-Oxapicyclo [3.2.1] Octane-2, 4-Dione 6-Spiro 1 , One (tetrahydrofuran
- tetracarboxylic dianhydrides different from the tetracarboxylic dianhydride represented by the above formula (1) used as necessary are used singly or in combination of two or more.
- the liquid crystal aligning agent of the present invention comprises P-phenylenediamine as an essential component as a diamine. High initial voltage holding ratio is expressed by using other diamine if necessary.
- the proportion of P-phenylenediamine used in the present invention is preferably 5 to 100 mol%, more preferably 10 to 100 mol%, and particularly preferably 25 to 100 mol%, based on the total diamine.
- diamines differ in preferred compounds depending on the method in which the liquid crystal aligning agent of the present invention is used.
- the liquid crystal aligning agent of the present invention is used in the TN method, STN method, OCB method or VA method, as the diamine used for the synthesis of the main component polymer, in addition to p-phenylenediamine, the following formula ( It is preferable to use together a diamine having a pretilt angle expression site represented by 13) or the following formula (14).
- R 7 and R 8 are each independently a hydrogen atom or a methyl group
- R 9 is a linear or branched alkyl group having 1 to 20 carbon atoms
- R 1Q and R 11 are Each independently is a divalent organic group
- R 12 is an ether bond (10), carbonyl group (One CO—), strong sulfonyloxy group (—COO—), oxycarbonyl group (—OC 2 O—), amide bond (one NHCO—, one CONH—), thioether bond (one S one) and methylene group
- R 13 is a divalent organic group different from R 12
- R 14 is a group having a steroid skeleton, a group having a fluorine atom, and 1 to 30 carbon atoms. And a group selected from a group having a linear or branched alkyl group.
- Diamines having these pretilt angle sites can be used alone or in combination of two or more.
- diamines represented by the above formula (13) include compounds represented by the following formulas (15) and (16).
- diamines represented by the above formula (14) include compounds represented by the following formulas (17)).
- the liquid crystal aligning agent of the present invention is used for the TN, STN, or OCB method among the TN method, STN method, CB method, and VA method, each of the above formulas (13) and (14)
- the amount of diamine having a pretilt angle expression site is preferably 0.5 to 30 mol%, more preferably 0.7 to 20 mol%, particularly preferably 1 to 15 mol, based on the total diamine. %.
- the liquid crystal aligning agent of the present invention When the liquid crystal aligning agent of the present invention is used for the VA method among the TN method, STN method, OCB method, and VA method, the liquid crystal aligning agent exhibits an excellent vertical alignment property of the liquid crystal.
- the diamine represented by the above formula (14) among the diams having S and the use amount thereof is preferably 8 to 60 mol%, more preferably 9 to 50 mol%, based on the total diamine. Particularly preferred is 10 to 25 mol%.
- the diamine having a pretilt angle-expressing site it is preferable to use diamines represented by the above formulas (17) to (21), and in particular, the diamine represented by the above formula (17) or (18). Is preferably used.
- the liquid crystal aligning agent of the present invention when used for the IPS method or the FFS method, the above-described diamine having the pretilt angle-expressing portion may be used.
- the above-described diamine having the pretilt angle-expressing portion may be used.
- Use other diamines as other diamines thus, it is preferable to synthesize the main component polymer.
- Examples of the diamine other than P-phenylenediamine used for the synthesis of the main component polymer of the liquid crystal aligning agent of the present invention and the diamine having the pretilt angle expression site include the following diamines. .
- Is pyridine, pyrimidine, triazine, piperidine and pipera X represents a divalent organic group having a ring structure containing a nitrogen atom selected from gin, and X represents a divalent organic group.
- R 2 ° represents a divalent organic group having a ring structure containing a nitrogen atom selected from pyridine, pyrimidine, triazine, piperidine and piperazine
- each R represents a hydrocarbon group having 1 to 12 carbon atoms
- R 2 1 may be the same or different
- p is an integer of 1 to 3
- Q is an integer of 1 to 20, respectively.
- Tetracarboxylic dianhydride and diester used in the polyamic acid synthesis reaction of the present invention The proportion of amine used is preferably such that the amount of acid anhydride group of tetracarboxylic dianhydride is 0.2 to 2 equivalents, more preferably 0.3 to 1 equivalent of amino groups contained in diamine. It is the ratio which becomes -1.2 equivalent.
- the polyamic acid synthesis reaction is preferably carried out in an organic solvent at a temperature of 120 to 150 ° C, more preferably 0 to 100 ° C.
- the organic solvent is not particularly limited as long as it can dissolve the synthesized polyamic acid.
- N-methyl-2-pyrrolidone, N, N-dimethylacetamide, N, N-dimethylformamide, dimethyl sulfoxide examples thereof include aprotic polar solvents such as propylamine, tetramethylurea, and hexamethylphosphoric triamide; and phenolic solvents such as m-cresol, xylenol, phenol, and halogenated phenol.
- the amount of organic solvent used (a) is 1 to 30% by weight based on the total amount of reaction solution (a + b) when the total amount of tetraforce rubonic acid dianhydride and diamine (b) is used. Such an amount is preferred.
- organic solvent alcohols, ketones, esters, ethers, halogenated hydrocarbons, hydrocarbons, and the like, which are poor solvents for polyamic acid, can be used in combination as long as the resulting polyamic acid does not precipitate.
- poor solvents include, for example, methyl alcohol, ethyl alcohol, isopropyl alcohol, cyclohexanol, ethylene glycol, propylene glycol, 1,4-butanediol, triethylene glycol, diacetone alcohol, ethylene glycol monomethyl ether.
- a reaction solution obtained by dissolving polyamic acid is obtained. Then, after pouring the reaction solution into a large amount of poor solvent to obtain a precipitate, the precipitate is dried under reduced pressure to obtain a polyamic acid.
- the polyamic acid can be purified by dissolving the polyamic acid again in an organic solvent and then precipitating with a poor solvent once or several times.
- the imidized polymer used in the liquid crystal aligning agent of the present invention can be synthesized by dehydrating and ring-closing the polyamic acid.
- the imidized polymer referred to here includes a partially imidized polymer obtained by partially imidizing the polyamic acid and a polymer obtained by immobilizing 100%. “Combined”.
- the preferred imidization ratio in the imidized polymer used in the liquid crystal aligning agent of the present invention is 10 to 100%, more preferably 20 to 99%, and particularly preferably 40 to 98%.
- the “imidation ratio” is the percentage of the number of imide rings to the total of the number of amic acid structures and the number of imide rings in the polymer.
- a partial force of the imide ring may be an S isoimide ring.
- the reaction temperature in the method of heating the polyamic acid (I) is preferably 50 to 300 ° C., more preferably 100 to 25 50. C. If the reaction temperature is less than 50, the dehydration ring-closure reaction does not proceed sufficiently, and if the reaction temperature exceeds 300 ° C, the molecular weight of the imidized polymer obtained may decrease.
- an acid anhydride such as acetic anhydride, propionic anhydride, or trifluoroacetic anhydride
- the amount of the dehydrating agent used is preferably 0.1 to 20 mol per 1 mol of the polyamic acid repeating unit.
- tertiary amines such as pyridine, collidine, lutidine, and triethylamine can be used.
- the dehydrating agent and the dehydration ring closure catalyst are not limited to these examples.
- the amount of the dehydration ring closure catalyst used is preferably from 0.01 to 10 moles per mole of the dehydrating agent used.
- the organic solvent used for the dehydration ring-closing reaction include the same organic solvents as exemplified for use in the synthesis of polyamic acid.
- the reaction temperature of the dehydration ring closure reaction is preferably 0 to 180 ° C., more preferably 60 to 150 ° C.
- the imidized polymer can be purified by performing the same operation as the polyamic acid purification method on the reaction solution thus obtained.
- the polyamic acid and the imidized polymer constituting the liquid crystal aligning agent of the present invention may be of a terminal modified type having a controlled molecular weight.
- a terminal-modified polymer By using this terminal-modified polymer, the coating properties of the liquid crystal aligning agent can be improved without impairing the effects of the present invention.
- Such a terminal-modified type can be synthesized by adding an acid monoanhydride, a monoamine compound, a monoisocyanate compound or the like to the reaction system when synthesizing the polyamic acid.
- examples of the acid monoanhydride include dicarboxylic acid monoanhydride S, such as maleic anhydride, phthalic anhydride, Itaconic anhydride, n-decyl succinic anhydride, n-dodecyl succinic anhydride, n-tetradecyl succinic anhydride, n-hexadecyl succinic anhydride, etc. .
- dicarboxylic acid monoanhydride S such as maleic anhydride, phthalic anhydride, Itaconic anhydride, n-decyl succinic anhydride, n-dodecyl succinic anhydride, n-tetradecyl succinic anhydride, n-hexadecyl succinic anhydride, etc.
- Examples of monoamine compounds include aniline, cyclohexylamine, p-ethylamine, n-butylamine, n-pentylamine, n-hexylamine, n-heptylamine, n-octylamine, n-nonylamine, n-decylamine, n -Undecylamine, n-dodecylylamine, n-tridecylamine, n-tetradecylamine, n-pendecylamine, n-hexadecylamine, n-heptdecylamine, n-octyldecylamine, n-eicosylamine, etc. Can be mentioned.
- examples of monoisocyanate compounds include phenyl isocyanate and naphthyl isocyanate. Logarithmic viscosity of the polymer>
- the value of the logarithmic viscosity (7? Ln ) of the polyamic acid and imidized polymer obtained as described above is preferably 0.05 to L0d1 / g, more preferably 0.05 to 5 d 1 / g.
- the value of the logarithmic viscosity (77 ln ) in the present invention was determined by measuring the viscosity at 30 ° C. for a solution having a concentration of 0.5 gZ l 00 ml using N-methyl-2-pyrrolidone as a solvent. It is obtained by the following formula (a).
- the liquid crystal aligning agent of the present invention is constituted by dissolving a polyamic acid and an imidized polymer in an organic solvent.
- the liquid crystal aligning agent of the present invention is an aliphatic tetramer represented by the above formula (1) of the present invention in order to improve the seizure resistance and the coating properties during the formation of the liquid crystal alignment film
- Other polyamic acid or imidized polymer other than polyamic acid or imidized polymer containing a structure derived from carboxylic dianhydride may be contained.
- Such other polyamic acid or imidized polymer may be one kind or plural kinds depending on the purpose, in particular 1, 2, 3, 4-cyclobutane tetracarboxylic dianhydride, 1, 3-dimethyl-1, 2, 3,4-cyclobutanetetracarboxylic dianhydride, 1, 2, 4, 5-cyclohexanetetracarboxylic dianhydride, 2, 3, 5-tricarboxycyclopentylacetic acid dianhydride, 1, 3, 3 a , 4, 5, 9 b-Hexahydro-5- (tetrahydro-1,2,5-dioxone 3-furanyl) one naphtho [1,2-c] furan 1,3-dione, 1, 3, 3 a, 4, 5, 9b-Hexahydro-8-methyl-5_ (tetrahydro-1,2,5-dioxo_3-furanyl) mononaphtho [1,2-c] furan 1,3-dione, 3-oxabicyclo [3.2 1] o Quan
- octane 1, 2, 4, 6, 8-tetracarboxylic acid One or more acid dianhydrides selected from dianhydride and pyromellitic dianhydride, p-phenylenediamine, 4, 4, —diaminodiphenyl methane, 4, 4′—diaminodiphenyl Rufido, 1,5-diaminonaphthalene, 2,7-diaminofluorene, 4,4, -diaminodiphenyl ether, 9, 9 —bis (4-aminophenyl) fluorene, 2, 2 -bis [ 4- (4-aminophenyl) phenyl] propane, 2,2-bis [4- (4-aminophenoxy) phenyl] hexafluoropropane, 2,2-bis (4-aminophenyl) hexafluoropropane, 4, 4, 1-diamino-2, 2 '1-bis (trifluoromethyl) bi
- the amount of the polyamic acid or imidized polymer not containing the unit derived from the aliphatic tetracarboxylic dianhydride represented by the above formula (1) is the aliphatic tetracarboxylic acid represented by the above formula (1).
- Derived from dianhydride Preferably 100 to 90 parts by weight, more preferably 25 to 500 parts by weight, particularly preferably 100 to 40 parts by weight relative to 100 parts by weight of the total amount of the polymer containing the unit. 0 parts by weight.
- the liquid crystal aligning agent of the present invention improves the initial voltage holding ratio, the amount of change in the voltage holding ratio when a heat stress is applied to the liquid crystal display element or the liquid crystal display element is driven for a long time.
- a compound having an epoxy group may be added.
- the compound having an epoxy group include ethylene glycol diglycidyl ether, polyethylene dallicol diglycidyl ether, propylene glycol diglycidyl ether, tripropylene glycol diglycidyl ether, polypropylene glycol diglycidyl ether, neopentyl glycol diglycidyl ether.
- a compound having an epoxy group containing a nitrogen atom in a molecule having a diamine skeleton as a mother nucleus because of its excellent reactivity with the polyamic acid and imidized polymer of the present invention.
- the addition amount of the compound having an epoxy group is preferably 0 to 60 parts by weight, more preferably 5 to 50 parts by weight with respect to 100 parts by weight of the total amount of the polyamic acid and imidized polymer of the present invention. It is.
- the liquid crystal aligning agent of the present invention may contain a functional silane compound force S, such as a 3-amino compound.
- a functional silane compound force S such as a 3-amino compound.
- N-bis (oxyethylene) -13-aminomino trimethoxysilane N-bis (oxyethylene) -13-aminopropyltriethoxysilane, and the like.
- the addition amount of these functional silane compounds is preferably 0 to 60 parts by weight, more preferably 0 to 50 parts by weight with respect to 100 parts by weight of the total amount of the polyamic acid and imidized polymer of the present invention. It is.
- organic solvent constituting the liquid crystal aligning agent of the present invention examples include the same solvents as those exemplified as those used in the polyamic acid synthesis reaction.
- the solvent power is preferably at a boiling point of 160 or higher.
- a particularly preferred solvent composition is a composition obtained by combining the above-mentioned solvents, in which a polymer does not precipitate in the aligning agent, and the surface tension of the aligning agent is in the range of 25 to 4 O mN / m. It is such a composition.
- the solid content concentration in the liquid crystal aligning agent of the present invention (the ratio of the total weight of the components excluding the organic solvent in the liquid crystal aligning agent to the total weight of the liquid crystal aligning agent) is selected in consideration of viscosity, volatility, and the like.
- the force is preferably in the range of 1 to 10% by weight. That is, the liquid crystal aligning agent of the present invention is applied to the substrate surface to form a coating film that becomes a liquid crystal alignment film.
- the film thickness of this coating film is If the solid content concentration exceeds 10% by weight, the film thickness of the coating film becomes excessive and a good liquid crystal alignment film can be obtained.
- the viscosity of the liquid crystal aligning agent increases, resulting in poor coating properties.
- Viscosity of the liquid crystal aligning agent of the present invention The viscosity measured at 25 ° C. using a rotary viscometer as the G night crystal aligning agent must be appropriately adjusted according to the method of applying the liquid crystal aligning agent. Is preferably 3 to; L 0 O mPa ⁇ s, more preferably 3 to 5 OmPa ⁇ s, and particularly preferably 3 to 35 mPa ⁇ s.
- the particularly preferable solid content concentration range varies depending on the method used when applying the liquid crystal aligning agent to the substrate. For example, in the case of the spinner method, the range of 1.5 to 4.5% by weight is particularly preferable. In the case of the printing method, it is particularly preferable that the solid content concentration is in the range of 3 to 9% by weight, and thereby the solution viscosity is in the range of 12 to 5 OmPa ⁇ s. In the case of the ink jet method, the solid content concentration is 1 to 5% by weight. It is particularly preferred that the solution viscosity be in the range of 3-15 mPa-s.
- the temperature for preparing the liquid crystal aligning agent of the present invention is preferably 0 ° C to 200 ° C, more preferably 10 ° C to 100 ° C, and particularly preferably 20 ° C to 60 ° C.
- the liquid crystal display element of the present invention can be produced, for example, by the following method.
- the liquid crystal aligning agent of the present invention is applied to one surface of a substrate provided with a patterned transparent conductive film by a method such as a roll coating method, a spinner method, a printing method, an inkjet method, etc.
- a coating film is formed by heating the coated surface.
- the spinner method is preferable for a small substrate
- the printing method force is preferable for a medium size substrate
- the ink jet method force is applied to a large substrate. s preferred.
- a glass such as float glass or soda glass
- a transparent substrate made of a plastic such as polyethylene terephthalate, polybutylene terephthalate, polyethersulfone, polycarbonate, or cyclic polyolefin
- NESA film made of tin oxide (Sn_ ⁇ 2) (US PPG registered trademark), indium tin monoxide oxidation (I n 2 0 3 - S nO 2) consisting of I A TO film or the like can be used.
- a photo-etching method or a method using a mask in advance is used.
- the reflective electrode metals such as A 1 and Ag, or alloys containing these metals can be used. However, it is not limited to these as long as it has sufficient reflectivity.
- a functional silane compound, a functional titanium compound or the like is previously applied to the surface of the substrate. It may be applied.
- preheating is usually performed for the purpose of preventing dripping of the applied aligning agent.
- the pre-baking temperature is preferably 30 to 300 ° C, more preferably 40 to 200 ° C, and particularly preferably 50 to 150 ° C.
- the liquid crystal aligning agent of the present invention forms a coating film that becomes an alignment film by removing the organic solvent after coating, but the liquid crystal aligning agent of the present invention is a polyamic acid or an imidized polymer having a low imidization rate.
- the film can be further heated to cause dehydration ring closure to proceed to form a more imidized coating film.
- the film thickness of the coating film to be formed is preferably from 0.001 to 1 / m, and more preferably from 0.05 to 0.5 m.
- the orientation angle of the liquid crystal molecules can be controlled by rubbing the surface of the formed coating film by rubbing in a certain direction with a roll wound with a cloth made of fibers such as nylon, rayon and cotton.
- a method of controlling the alignment ability by irradiating the surface of the coating film with polarized ultraviolet light can be applied.
- the formed liquid crystal alignment film should be washed with isopropyl alcohol and Z or pure water. Is preferred.
- the liquid crystal alignment film formed by the liquid crystal aligning agent of the present invention is partially irradiated with ultraviolet rays as disclosed in, for example, Japanese Patent Application Laid-Open No. 6-2 2 2 3 6 6 and Japanese Patent Application Laid-Open No. 6-2 8 1 9 3 7.
- a resist film is partially applied on a liquid crystal alignment film that has been subjected to a treatment that changes the pretilt angle by irradiating the surface or a rubbing treatment as disclosed in Japanese Patent Laid-Open No. 5-107504. After the rubbing process is performed in a direction different from the previous rubbing process, the resist film is removed and a process for changing the alignment ability of the liquid crystal alignment film is performed. It is possible to improve the visual characteristics.
- the liquid crystal is formed by injecting and filling liquid crystal into the cell gap defined by the substrate surface and the sealing agent, and sealing the injection hole.
- a liquid crystal display element is obtained by disposing a polarizing plate on the outer surface of the liquid crystal cell, that is, on the outer surface side of each substrate constituting the liquid crystal cell.
- the sealant for example, an epoxy resin containing a hardener and aluminum oxide spheres as a spacer can be used.
- liquid crystals examples include nematic liquid crystals and smectic liquid crystals. Among them, nematic liquid crystal is preferable.
- nematic liquid crystal is preferable.
- Dioxane liquid crystal, bicyclooctane liquid crystal, cubane liquid crystal, and the like can be used.
- Cholesteric liquid crystals such as cholestyl chloride, cholesteryl nonate, and cholesteryl carbonate; trade names “C-1 5” and “CB-1 5” (manufactured by Merck) It may be used by adding a ferroelectric night crystal such as p-decyloxybenzylidene p-amino-2-methylbutyl cinnamate.
- a polarizing film As a polarizing plate to be bonded to the outer surface of the liquid crystal cell, a polarizing film called a “coating film” that absorbs iodine while stretching and aligning polyvinyl alcohol is sandwiched between cellulose acetate protective films or A polarizing plate made of the film itself can be mentioned.
- a polarizing film that absorbs iodine while stretching and aligning polyvinyl alcohol is sandwiched between cellulose acetate protective films or A polarizing plate made of the film itself can be mentioned.
- DM SO-d 6 deuterated dimethyl sulfoxide
- NMR superconducting nuclear magnetic resonance absorber
- 1 H-NMR was measured using tetramethylsilane as a reference substance.
- the NH-derived protons in the polymer —Imidation ratio was calculated from the ratio of the peak area (around 1 O ppm) to the peak area derived from other protons.
- the voltage holding ratio after 1 m7 msec after the application release is 60 ° C Measured under atmosphere.
- the measuring device used was VHR-1 manufactured by Toyo Corporation. When the voltage holding ratio was 99.0% or more, it was judged as “good”, and other cases were judged as “bad”. [Reliability evaluation of voltage holding ratio]
- the produced liquid crystal display element was stored in a constant temperature oven at 100 ° C. for 10 days, applied with thermal stress, and then allowed to cool to room temperature.
- the voltage holding ratio of the liquid crystal display element was measured again by the above measurement method, and the amount of change in the voltage holding ratio before and after thermal stress was calculated. When the amount of change in the voltage holding ratio was within 5% of the initial value, it was judged as “good”, and other cases were judged as “bad”.
- Each liquid crystal aligning agent (total solid content concentration adjusted to 4.5-6.5 wt%) prepared in the following examples and comparative examples is used as a liquid crystal alignment film printer (manufactured by Nissha Printing Co., Ltd.). Then, an ITO film with a thickness of 200 nm and a width of 20 / zm was applied to the transparent electrode surface of a glass substrate with a transparent electrode formed in stripes at intervals of 100 m, and then heated on a hot plate. Preliminary drying was performed at 80 ° C. for 1 minute, followed by baking at 20 ° C. for 10 minutes on a hot plate to form a liquid crystal alignment film having a thickness of about 60 nm.
- Tetracarboxylic dianhydride represented by the above formula (3) as tetracarboxylic dianhydride 25. 690 g (0. 0930 mol), p-phenylenediamine as diamine 9.2 135 g (0. 0852 mol) ), 4.9688 g (0.0053 mol) of diamine represented by the above formula (17) was dissolved in 140 g of N-methyl-2-pyrrolidone and reacted at 60 ° C. for 5 hours. The reaction solution was then poured into a large excess of methyl alcohol to precipitate the reaction product. Thereafter, it was washed with methyl alcohol and dried under reduced pressure at 40 ° C.
- polymer P-6 an imidized polymer having a logarithmic viscosity of 0.55 dlZg and an imidization ratio of 75%
- the polyamic acid and imidized polymer shown in Table 1 were the same as in Synthesis Example 1, Synthesis Example 3 and Synthesis Example 6 except that tetracarboxylic dianhydride and diamine were changed to those shown in Table 1, respectively. (These were referred to as polymers “P-2”, “P-4”, “P-5”, and “P_7” to “P-19”, respectively).
- Each polymer has a viscosity described in Table 1 by appropriately adjusting the weight ratio of tetracarboxylic dianhydride and diamine used when synthesizing the corresponding polyamic acid. I was able to.
- each polymer having the imidization rate shown in Table 1 could be obtained by appropriately adjusting the addition amounts of pyridine and acetic anhydride.
- tetracarboxylic dianhydrides A to F and diamines G to M represent the following compounds, respectively.
- Acid dianhydride B Tetracarboxylic dianhydride represented by the above formula (3)
- Acid dianhydride C 2, 3, 5 — ⁇ Carboxycyclopentylacetic acid dianhydride
- Acid dianhydride D Pyromellitic dianhydride
- Acid dianhydride E 1, 2, 3, 4-cyclobutanetetracarboxylic dianhydride
- Acid dianhydride F 1, 3, 3 a, 4, 5, 9 b-Hexahydro-8-methyl-5- (tetrahydro-1,5-dioxo-3-furanyl) mononaphtho [1, 2-c]
- the polymer (P-1) obtained in Synthesis Example 1 is mixed with N-methyl-2-pyrrolidone and ethylene glycol monobutyl ether so that the mixing weight ratio of N-methyl-2-pyrrolidone-ethylene ethylene glycol monobutyl ether is 30/70.
- 20 parts by weight of N, N, ⁇ ', ⁇ , -tetraglycidyl 1,4,4'-diaminodiphenylmethane is added to the polymer ( ⁇ -1) to obtain a solid content of 3.5.
- a liquid crystal aligning agent of weight% was used. However, when conducting the printability test, a liquid crystal aligning agent having a solid content concentration of 6.5% by weight was used.
- a liquid crystal aligning agent and a VA liquid crystal display device of the present invention were obtained in the same manner as in Example 1 except that the polymer (P-2) obtained in Synthesis Example 2 was used instead of the polymer (P-1). It was.
- Table 2 shows the results of evaluating the voltage holding ratio and the reliability of the obtained liquid crystal display device.
- the polymer (P-3) obtained in Synthesis Example 3 was used instead of the polymer (P-1),
- a liquid crystal aligning agent and a V-type liquid crystal display device of the present invention were obtained in the same manner as in Example 1 except that no hydrogen was added. Table 2 shows the results of evaluating the voltage holding ratio and reliability of the obtained liquid crystal display device.
- a liquid crystal aligning agent and a VA type liquid crystal display device of the present invention were obtained in the same manner as in Example 1 except that 50 was used.
- Table 2 shows the results of evaluating the voltage holding ratio and the reliability of the obtained liquid crystal display device.
- Example 5
- the liquid crystal aligning agent had a solid content of 4.5% by weight.
- the liquid crystal aligning agent of the present invention prepared as described above was applied onto a transparent conductive film made of an ITO film provided in a comb-teeth shape on one surface of a 1 mm thick glass substrate using a spinner, and 180 A film with a dry film thickness of 8 Onm was formed by drying at ° C for 1 hour.
- the formed coating surface was rubbed using a rubbing machine having a roll around which a nylon cloth was wound to obtain a liquid crystal alignment film.
- the rubbing treatment conditions were a roll rotation speed of 400 rpm, a stage moving speed of 3 cm / sec, and a bristle foot pushing length of 0.4 mm. (This board is called board A)
- the liquid crystal aligning agent of the present invention prepared as described above was applied to one surface of a glass substrate having a thickness of 1 mm using a spinner, and dried at 180 ° C. for 1 hour to form a coating film having a dry film thickness of 8 Onm. Formed.
- the formed coating film surface was rubbed using a rubbing machine having a roll wound with a nylon cloth to obtain a liquid crystal alignment film.
- the rubbing treatment conditions were a roll rotation speed of 400 rpm, a stage moving speed of 3 cmZ seconds, and a bristle foot pushing length of 0.4 mm. (This board is called board B)
- the liquid crystal injection port is sealed with an epoxy adhesive, the polarizing plate is placed on both sides of the substrate, and the polarizing direction of the polarizing plate is the same as the rubbing direction of the liquid crystal alignment film of each substrate. Bonding was made so that they coincided, and an IPS type liquid crystal display device was produced. Table 2 shows the results of evaluating the voltage holding ratio and the reliability of the obtained liquid crystal display element.
- liquid crystal aligning agent of the present invention This was sufficiently stirred and then filtered using a filter having a pore diameter of 0.2 m to prepare the liquid crystal aligning agent of the present invention.
- the above liquid crystal aligning agent is applied onto a transparent conductive film made of an IT film on one surface of a glass substrate using a spinner, preliminarily dried at 80 ° C. for 1 minute on a hot plate, and then hot A transparent electrode substrate having a liquid crystal alignment film with a film thickness of 60 nm was prepared by baking at 210 ° C. for 10 minutes on the plate.
- a rubbing machine having a roll in which a rayon cloth was wrapped around this film was rubbed once at a roll rotation speed of 400 rpm, a stage moving speed of 30 mm / sec, and a limb push-in length of 0.4 mm.
- the liquid crystal alignment film-coated substrate was ultrasonically cleaned in pure water for 1 minute and then dried in a clean oven at 100 ° C. for 10 minutes.
- an epoxy resin adhesive containing aluminum oxide with a diameter of 5.5 m and a spherical ball is applied.
- the liquid crystal alignment film surfaces were overlapped and pressed together so that the adhesive was cured.
- liquid crystal injection port After filling with nematic liquid crystal (MLC-6221, manufactured by Merck & Co., Inc.), the liquid crystal injection port is sealed with an acrylic photo-curing adhesive, and a polarizing plate is bonded to both sides of the substrate, and a TN liquid crystal display element is formed.
- MLC-6221 nematic liquid crystal
- Table 2 shows the results of evaluating the voltage holding ratio and the reliability of the obtained liquid crystal display device.
- the polymer ( ⁇ -11) obtained in Synthesis Example 11 was used in place of the polymer ( ⁇ -9), and ⁇ , ⁇ , ⁇ , ⁇ ⁇ ⁇ tetraglycidyl-4,4, -diaminodiphenylmeth
- the amount of tan added was changed to 10 parts by weight based on the total amount of polymer.
- a liquid crystal display element was obtained. Table 2 shows the results of evaluating the voltage holding ratio and the reliability of the obtained liquid crystal display device.
- the polymer (P-12) obtained in Synthesis Example 12 was used in place of the polymer () -9), and ⁇ , ⁇ , ⁇ ', N'-tetraglycidyl 4,4, -diaminodiphenyl ester was used.
- Example except that the addition amount of tan was changed to 10 parts by weight with respect to the total amount of the polymer, and the solvent composition was changed to aptyrolactone ZN-methyl-2-pyrrolidone / ethylene glycol monobutyl ether mixed weight ratio 72/15/13
- Table 2 shows the results of evaluating the voltage holding ratio and the reliability of the obtained liquid crystal display device.
- the polymer (P-14) obtained in Synthesis Example 14 was used in place of the polymer (P-13), and the solvent composition was aptyrolactone ZN_methyl-2-pyrrolidone Z ethylene glycol.
- a liquid crystal aligning agent and a TN type liquid crystal display device of the present invention were obtained in the same manner as in Example 8 except that the mixing weight ratio of monobutyl ether was 72/16/12. Table 2 shows the results of evaluating the voltage holding ratio and the reliability of the obtained liquid crystal display element.
- the polymer (P-16) obtained in Comparative Synthesis Example 2 was used in place of the polymer (P-1), and the solvent composition was mixed with aptyrolactone / N-methyl-1-pyrrolidone ethylene glycol monobutyl ether.
- a liquid crystal aligning agent and a VA type liquid crystal display device were obtained in the same manner as in Example 1 except that the ratio was 40/30/30. Table 2 shows the results of evaluating the voltage holding ratio and reliability of the obtained liquid crystal display device. Comparative Example 3
- a liquid crystal aligning agent and an IPS type liquid crystal display device were obtained in the same manner as in Example 7 except that the polymer (P-17) obtained in Comparative Synthesis Example 3 was used instead of the polymer (P-8). .
- Table 2 shows the results of evaluating the voltage holding ratio and the reliability of the obtained liquid crystal display device. Comparative Example 4
- a liquid crystal aligning agent and a TN type liquid crystal display device were obtained in the same manner as in Example 8 except that the polymer (P-18) obtained in Comparative Synthesis Example 4 was used instead of the polymer (P-9). .
- Table 2 shows the results of evaluating the voltage holding ratio and the reliability of the obtained liquid crystal display element.
- a liquid crystal aligning agent and a TN type liquid crystal display device were obtained in the same manner as in Example 9 except that the polymer (P-19) obtained in Comparative Synthesis Example 5 was used instead of the polymer (P-10).
- Table 2 shows the results of evaluating the voltage holding ratio and the reliability of the obtained liquid crystal display device.
- the liquid crystal alignment films obtained from the liquid crystal alignment agents obtained in Examples 1 to 12 show a higher voltage holding ratio and better reliability than those of the comparative examples.
- the coating property of an excellent liquid crystal aligning agent is exhibited.
- the characteristics of the liquid crystal aligning agent of the present invention can be adjusted by selecting the structure of the tetracarboxylic dianhydride represented by the above formula (1) and its content.
- liquid crystal aligning agent having a high voltage holding ratio and excellent in the coating property of the liquid crystal aligning agent, and a liquid crystal display element having the liquid crystal aligning film and having a beautiful image. It was shown that there is.
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Abstract
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JP2009501334A JP4716061B2 (ja) | 2007-03-01 | 2008-02-29 | 液晶配向剤および液晶表示素子 |
KR1020087026787A KR101503933B1 (ko) | 2007-03-01 | 2008-02-29 | 액정 배향제 및 액정 표시 소자 |
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JP (1) | JP4716061B2 (ja) |
KR (1) | KR101503933B1 (ja) |
CN (1) | CN101636686A (ja) |
TW (1) | TWI490610B (ja) |
WO (1) | WO2008105564A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010262263A (ja) * | 2009-04-08 | 2010-11-18 | Jsr Corp | 液晶配向剤および液晶表示素子 |
JP2013137386A (ja) * | 2011-12-28 | 2013-07-11 | Japan Display Central Co Ltd | 液晶表示装置 |
Families Citing this family (2)
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KR101675359B1 (ko) | 2014-12-30 | 2016-11-14 | 건국대학교 글로컬산학협력단 | 네오아가로올리고당을 유효성분으로 포함하는 패혈증 또는 패혈증성 쇼크의 예방 또는 치료용 조성물 |
JP7076939B2 (ja) * | 2016-07-19 | 2022-05-30 | 株式会社ジャパンディスプレイ | 光配向膜用ワニス及び液晶表示装置 |
Citations (4)
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JPS63191129A (ja) * | 1986-09-02 | 1988-08-08 | Canon Inc | カイラルスメクチック液晶素子 |
JPS63200125A (ja) * | 1987-02-16 | 1988-08-18 | Matsushita Electric Ind Co Ltd | アクテイブマトリクス型液晶表示素子 |
JP2000281682A (ja) * | 1999-03-30 | 2000-10-10 | Nissan Chem Ind Ltd | 脂環式テトラカルボン酸二無水物及びその製造法 |
JP2007025216A (ja) * | 2005-07-15 | 2007-02-01 | Chisso Corp | 垂直配向液晶表示素子用の液晶配向剤及び垂直配向液晶表示素子 |
Family Cites Families (2)
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JP4900560B2 (ja) * | 2004-10-05 | 2012-03-21 | Jsr株式会社 | 新規ジアミン化合物、ポリマーおよび液晶配向剤 |
JP5209844B2 (ja) * | 2004-11-30 | 2013-06-12 | 株式会社リコー | 電子素子及びその製造方法、演算素子並びに表示素子 |
-
2008
- 2008-02-29 KR KR1020087026787A patent/KR101503933B1/ko not_active Expired - Fee Related
- 2008-02-29 TW TW097107117A patent/TWI490610B/zh active
- 2008-02-29 WO PCT/JP2008/054108 patent/WO2008105564A1/ja active Application Filing
- 2008-02-29 JP JP2009501334A patent/JP4716061B2/ja not_active Expired - Fee Related
- 2008-02-29 CN CN200880006868A patent/CN101636686A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS63191129A (ja) * | 1986-09-02 | 1988-08-08 | Canon Inc | カイラルスメクチック液晶素子 |
JPS63200125A (ja) * | 1987-02-16 | 1988-08-18 | Matsushita Electric Ind Co Ltd | アクテイブマトリクス型液晶表示素子 |
JP2000281682A (ja) * | 1999-03-30 | 2000-10-10 | Nissan Chem Ind Ltd | 脂環式テトラカルボン酸二無水物及びその製造法 |
JP2007025216A (ja) * | 2005-07-15 | 2007-02-01 | Chisso Corp | 垂直配向液晶表示素子用の液晶配向剤及び垂直配向液晶表示素子 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010262263A (ja) * | 2009-04-08 | 2010-11-18 | Jsr Corp | 液晶配向剤および液晶表示素子 |
JP2013137386A (ja) * | 2011-12-28 | 2013-07-11 | Japan Display Central Co Ltd | 液晶表示装置 |
Also Published As
Publication number | Publication date |
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TWI490610B (zh) | 2015-07-01 |
KR101503933B1 (ko) | 2015-03-18 |
CN101636686A (zh) | 2010-01-27 |
TW200846790A (en) | 2008-12-01 |
JP4716061B2 (ja) | 2011-07-06 |
KR20100014071A (ko) | 2010-02-10 |
JPWO2008105564A1 (ja) | 2010-06-03 |
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