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41. 发明专利

DE69938459T2 未知
公开(公告)号：DE69938459T2
公开(公告)日：2009-04-09
申请号：DE69938459
申请日：1999-09-10
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKEUCHI KIYOFUMI , TAKATSU HARUYOSHI , YANAGIHARA HIROKAZU
IPC分类号： C09K19/32 , C09K19/34 , C09K19/40 , C09K19/42 , G02F1/13
摘要： A nematic liquid crystal composition comprising compounds of the general formulas (I-1) to (I-5) each having naphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl and 1,2,3,4-tetrahydronaphthalene-2,6-diyl, and a liquid display device using the same. This nematic liquid crystal composition broadens the operating temperature range of liquid crystal display characteristics due to an improvement in co-solubility and storage at low temperature, thereby making it possible to improve a reduction in driving voltage and a change in temperature and to attain comparatively fast response characteristics for a predetermined driving voltage. Accordingly, the nematic liquid crystal composition is best suited for use as TN, STN, TFT, IPS, MVA, OCB, ECB, PC, PNLC, PDLC, PSCT or the like.

42. 发明专利

DE69923713T2 未知
公开(公告)号：DE69923713T2
公开(公告)日：2005-12-29
申请号：DE69923713
申请日：1999-09-10
申请人： DAINIPPON INK & CHEMICALS
发明人： KUSUMOTO TETSUO , SAITO YOSHITAKA , NEGISHI MAKOTO , NAGASHIMA YUTAKA , TAKEHARA SADAO , TAKATSU HARUYOSHI , GRAHE GERWALD , FRINGS BRUNO , PITHART CORNELIA
IPC分类号： C07C255/50 , C07C255/52 , C07D213/30 , C09K19/32 , C09K19/34 , C07C25/22 , C07C25/24 , C07D213/50 , C07D213/79 , G02F1/13
摘要： A tetrahydronaphthalene derivative represented by the general formula (I) and a liquid crystal composition containing the same. A compound represented by the general formula (I) shows superior liquid crystallinity and co-solubility with conventional liquid crystal compounds and compositions. Furthermore, addition of such a compound enables the threshold voltage to be significantly reduced with almost no deleterious effect on the responsiveness. In addition, a compound of the present invention can also be easily produced industrially, is colorless, and is chemically stable. Consequently, liquid crystal compositions containing such a compound are extremely useful as liquid crystals, and are particularly suitable for liquid crystal displays requiring a wide operating temperature range, low voltage driving and a high response speed.

43. 发明专利

HK1050674A1 NAPHTHALENE DERIVATIVE AND LIQUID CRYSTAL COMPOSITION COMPRISING THE SAME 未知
公开(公告)号：HK1050674A1
公开(公告)日：2003-07-04
申请号：HK03102642
申请日：2000-03-28
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKEHARA SADAO , OSAWA MASASHI , TAKATSU HARUYOSHI , NEGISHI MAKOTO
IPC分类号： C07C20100101 , C07C17/26 , C07C17/269 , C07C17/354 , C07C25/18 , C07C25/22 , C07C25/24 , C07C255/50 , C09K20100101 , C09K19/32
摘要： Disclosed is a novel liquid-crystalline compound which is a naphthalene derivative useful as an electro-optical liquid crystal display material, a liquid crystal composition containing such naphthalene derivatives and a liquid crystal display device comprising the same. The naphthalene derivative provided by the present invention exhibits an excellent liquid-crystallinity and miscibility with currently widely used liquid crystal compositions or compositions. The addition of the naphthalene derivative makes it possible to drastically lower the threshold voltage of the liquid crystal composition while maintaining its high response. The naphthalene derivative of the present invention is characterized by a large birefringence index. Further, most of the naphthalene derivative of the present invention has no strongly polar group in its molecule and thus can also be used for active matrix driving. Moreover, as shown in the foregoing examples, the naphthalene derivative of the present invention can be easily produced and is colorless and chemically stable. Accoardingly, the liquid crystal composition comprising the naphthalene derivative of the present invention is extremely useful as a practical liquid crystal camposition, particularly a liquid crystal composition which can operate within a wide temperature range and requires a high speed response and a low voltage driving.

44. 发明专利

DE69428486D1 未知
公开(公告)号：DE69428486D1
公开(公告)日：2001-11-08
申请号：DE69428486
申请日：1994-07-22
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKATSU HARUYOSHI , TAKEHARA SADAO , TAKEUCHI KIYOHUMI , OSAWA MASASHI , OGAWA SHINJI , ISHIDA NORIE
IPC分类号： C07B59/00 , C07C69/773 , C07C255/50 , C07C255/55 , C09K19/30 , C09K19/40 , C09K19/42 , G02F1/13 , C09K19/04 , C07C43/20 , C07C25/18
摘要： A novel cyclic hydrocarbon derivative is disclosed, which is represented by formula (I): wherein Y and Y each independently represent a fluorine atom, a chlorine atom, a cyano group, a cyanato group (OCN), a thiocyanato group (SCN), a trifluoromethoxy group (OCF3), a difluoromethoxy group (OCF2H), a 2,2,2-trifluoroethoxy group (OCH2CF3), a trifluoromethyl group (CF3), R, -OR, -COOR or -OCOR, wherein R represents an alkyl group having from 1 to 20 carbon atoms, an alkenyl group having from 2 to 20 carbon atoms or an alkoxylalkyl group having from 2 to 20 carbon atoms, provided that at least one of Y and Y represents R, -OR, -COOR or -OCOR; Z, Z , Z , Z , and Z each independently represent a single bond, -CH2CH2-, -CH=CH-, -C IDENTICAL C-, -COO-, -OCO-, -CH2O-, -OCH2-, -(CH2)4-, -(CH2)3-O- or -O-(CH2)3-; ring A represents a group of formula (II): wherein X , X , X , X , X , X , X , X , X , and X each independently represent a hydrogen atom (H) or a deuterium atom (D), provided that at least one of them represents a deuterium atom (D); rings K, L, J, M and N each independently represent a trans-1,4-cyclohexylene group, a 1,4-cyclohexenylene group, a trans-1,4-cyclohexylene group substituted with 1 to 4 substituents selected from a fluorine atom and a cyano group, a 1,4-phenylene group, a 1,4-phenylene group substituted with 1 to 4 substituents selected from a fluorine atom, a chlorine atom, a cyano group and a methyl group, a 1,3-dioxane-2,6-diyl group, a pyrimidine-2,5-diyl group, a pyridine-2,5-diyl group, a pyrazine-2,5-diyl group or a group of formula (III): wherein X , X , X , X , X , X , X , X , X , and X each independently represent a hydrogen atom (H) or a deuterium atom (D), provided that at least one of them represents a deuterium atom (D); in which the ring of formula (III) may be the same or different with ring A; and k, l, m, and n each independently represent 0 or 1, provided that the sum of k, l, m, and n is 0, 1 or 2. The compound of the present invention is useful as an electro-optic liquid crystal display material.

45. 发明专利

AU5649099A Compound having tetrahydronaphthalene skeleton and liquid crystal composition containing the same 未知
公开(公告)号：AU5649099A
公开(公告)日：2001-01-31
申请号：AU5649099
申请日：1999-09-10
申请人： DAINIPPON INK & CHEMICALS
发明人： KUSUMOTO TETSUO , SAITOH YOSHITAKA , NEGISHI MAKOTO , NAGASHIMA YUTAKA , TAKEHARA SADAO , TAKATSU HARUYOSHI , GRAHE GERWALD , FRINGS RAINER BRUNO , PITHART CORNELIA
IPC分类号： C07C255/50 , C07C255/52 , C07D213/30 , C09K19/32 , C09K19/34 , C07C25/22 , C07C25/24 , C07D213/50 , C07D213/79 , G02F1/13
摘要： A tetrahydronaphthalene derivative represented by the general formula (I) and a liquid crystal composition containing the same. A compound represented by the general formula (I) shows superior liquid crystallinity and co-solubility with conventional liquid crystal compounds and compositions. Furthermore, addition of such a compound enables the threshold voltage to be significantly reduced with almost no deleterious effect on the responsiveness. In addition, a compound of the present invention can also be easily produced industrially, is colorless, and is chemically stable. Consequently, liquid crystal compositions containing such a compound are extremely useful as liquid crystals, and are particularly suitable for liquid crystal displays requiring a wide operating temperature range, low voltage driving and a high response speed.

46. 发明专利

CA2377217A1 COMPOUND HAVING TETRAHYDRONAPHTHALENE SKELETON AND LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME 未知
公开(公告)号：CA2377217A1
公开(公告)日：2001-01-04
申请号：CA2377217
申请日：1999-09-10
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKATSU HARUYOSHI , SAITO YOSHITAKA , FRINGS RAINER BRUNO , NEGISHI MAKOTO , KUSUMOTO TETSUO , GRAHE GERWALD , PITHART CORNELIA , TAKEHARA SADAO , NAGASHIMA YUTAKA
IPC分类号： C07C25/22 , C07C25/24 , C07C255/50 , C07D213/30 , C07D213/50 , C07D213/79 , C09K19/32 , C09K19/34 , G02F1/13
摘要： A tetrahydronaphthalene derivative represented by general formula (I) and a liquid crystal composition containing the same. The compound having general formula (I) has not only excellent properties as a liquid crystal, but also excellent compatibility with a liquid crystal compound or composition being currently used, and further the addition thereof to such a compound or composition allows the marked reduction of a threshold value for voltage wit h little detriment to response characteristics. The above compound can be commercially produced with ease, and is colorless and chemically stable. Accordingly, a liquid crystal composition containing the compound is a practical liquid crystal which is extremely useful for a liquid crystal display which requires a wide working temperature range, an operation at a l ow voltage and a fast response.

47. 发明专利

AU5648999A Nematic liquid crystal composition and liquid crystal display using the same 未知
公开(公告)号：AU5648999A
公开(公告)日：2000-04-10
申请号：AU5648999
申请日：1999-09-10
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKEUCHI KIYOFUMI , TAKATSU HARUYOSHI , YANAGIHARA HIROKAZU
IPC分类号： C09K19/32 , C09K19/42
摘要： A nematic liquid crystal composition comprising compounds of the general formulas (I-1) to (I-5) each having naphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl and 1,2,3,4-tetrahydronaphthalene-2,6-diyl, and a liquid display device using the same. This nematic liquid crystal composition broadens the operating temperature range of liquid crystal display characteristics due to an improvement in co-solubility and storage at low temperature, thereby making it possible to improve a reduction in driving voltage and a change in temperature and to attain comparatively fast response characteristics for a predetermined driving voltage. Accordingly, the nematic liquid crystal composition is best suited for use as TN, STN, TFT, IPS, MVA, OCB, ECB, PC, PNLC, PDLC, PSCT or the like.

48. 发明专利

CA2344667A1 NEMATIC LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY USING THE SAME 未知
公开(公告)号：CA2344667A1
公开(公告)日：2000-03-30
申请号：CA2344667
申请日：1999-09-10
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKATSU HARUYOSHI , YANAGIHARA HIROKAZU , TAKEUCHI KIYOFUMI
IPC分类号： C09K19/32 , C09K19/42 , G02F1/13 , C09K19/34 , C09K19/40
摘要： A nematic liquid crystal composition characterized in that the liquid crysta l composition comprises a compound represented by any of general formulae (I-1 ) to (I-5) which have naphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl or 1,2,3,4-tetrahydronaphthalene-2,6-diyl; and a liquid crystal display using t he same. This nematic liquid crystal composition allows the extension of the operation temperature range for a liquid crystal display characteristic through, for example, its improvement in compatibility and in storage stability at a low temperature, permits the reduction of driving voltage and the improvement of its change with temperature and enables achieving a relatively fast response for a given driving voltage, and accordingly is extremely suitable for use in TN, STN, TFT, IPS, MVA, OCB, ECB, PC, PNLC, PDLC, PSCT or the like.

49. 发明专利

CA2341475A1 DECAHYDRONAPHTHALENE DERIVATIVE 未知
公开(公告)号：CA2341475A1
公开(公告)日：2000-03-02
申请号：CA2341475
申请日：1999-08-23
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKATSU HARUYOSHI , GRAHE GERWALD , NEGISHI MAKOTO , PITHART CORNELIA , FUGGER CHRISTINE , FRINGS RAINER BRUNO , TAKEHARA SADAO , NAGASHIMA YUTAKA , OHNISHI HIROYUKI , OGAWA SHINJI
IPC分类号： C07C13/50 , C07C17/00 , C07C17/12 , C07C17/26 , C07C17/354 , C07C22/08 , C07C25/22 , C07C25/24 , C07C45/00 , C07C45/62 , C07C45/69 , C07C47/277 , C07C47/47 , C07C255/49 , C07C255/50 , C07C255/55 , C09K19/32 , C09K19/34 , G02F1/13 , C07C43/225 , C07C39/38 , C07C49/693 , C07D317/72
摘要： A decahydronaphthalene derivative represented by general formula (I), a liqu id- crystal composition containing the derivative; and a liquid-crystal element containing the composition. The decahydronaphthalene derivative, which is a novel compound, can be extremely easily produced even on an industrial scale as shown in Examples. When added to a base liquid crystal in a small amount, the derivative not only widens the nematic-phase temperature range but can improve various properties of the liquid-crystal material. The derivative ha s excellent compatibility with base liquid crystals currently in general use a s nematic liquid crystals. Therefore, it is suitable for use in various liquid - crystal display elements required to operate in a wide temperature range and is extremely useful as a material for liquid crystals.

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