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31. 发明专利

CA2049410A1 LIQUID CRYSTAL DEVICE AND PROCESS FOR PRODUCING THE SAME 未知
公开(公告)号：CA2049410A1
公开(公告)日：1992-02-18
申请号：CA2049410
申请日：1991-08-16
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKEUCHI KIYOFUMI , TAKATSU HARUYOSHI , UMEZU YASUO
IPC分类号： C09K19/54 , G02F1/1334 , G02F1/1337 , G02F1/1347 , G02F1/139 , G02F1/133
摘要： A liquid crystal device comprising a pair of substrates each having an electrode layer at least one of which is transparent, one or both of said substrates having formed thereon a network layer having a three-dimensional network structure which comprises a transparent solid substance, or one of said substrates having formed thereon said network layer with the other substrate having formed thereon an alignment layer, said pair of substrates being assembled in such a manner that said network layer of one substrate faces to the other network layer or the other substrate with or without an alignment layer in contact or with a small gap therebetween, and a liquid crystal material filled between said pair of substrates. The liquid crystal device exhibits improved hysteresis, high voltage holding ratio, and low power driving properties. The device can be produced without any restriction of conditions dependent on a combination of a liquid crystal material and a polymer.

32. 发明专利

CH653982A5 NEMATISCHE FLUESSIGKRISTALLVERBINDUNGEN. 未知
公开(公告)号：CH653982A5
公开(公告)日：1986-01-31
申请号：CH380683
申请日：1983-07-11
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKATSU HARUYOSHI , SATO HISATO
IPC分类号： C07C29/10 , C07C29/143 , C07C45/46 , C07C49/84 , C07C69/773 , C09K19/30 , C07C69/75

33. 发明专利

CH647489A5 未知
公开(公告)号：CH647489A5
公开(公告)日：1985-01-31
申请号：CH374982
申请日：1982-06-17
申请人： DAINIPPON INK & CHEMICALS
发明人： SATO HISATO , TAKATSU HARUYOSHI , FUJITA YUTAKA , TAZUME MASAYUKI , TAKEUCHI KIYOHUMI , OHNISHI HIROYUKI
IPC分类号： C07C1/22 , C07C13/28 , C07C45/46 , C09K19/30

34. 发明专利

DE3339216A1 未知
公开(公告)号：DE3339216A1
公开(公告)日：1984-05-03
申请号：DE3339216
申请日：1983-10-28
申请人： DAINIPPON INK & CHEMICALS
发明人： SASAKI MAKOTO , TAKATSU HARUYOSHI , SATO HISATO
IPC分类号： C07C255/51 , C07C255/53 , C09K19/00 , C09K19/12 , C09K19/20 , C09K19/30 , C07C121/52 , C09K3/34
摘要： A compound of the general formula wherein A denotes a substituted ring structure represented by the formula the substituent R denotes a linear alkyl group having 1 to 9 carbon atoms, and the cyclohexane rings are both arranged in a trans(equatorial-equatorial)-form.

35. 发明专利

GB2124218A NEMATIC LIQUID CRYSTALLINE ESTER COMPOUNDS 未知
公开(公告)号：GB2124218A
公开(公告)日：1984-02-15
申请号：GB8317757
申请日：1983-06-30
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKATSU HARUYOSHI , SATO HISATO
IPC分类号： C07C29/10 , C07C29/143 , C07C45/46 , C07C49/84 , C07C69/773 , C09K19/30 , C07C69/75 , C09K3/34
摘要： A nematic liquid crytalline compound selected from the group consisting of compounds represented by the general formula compounds represented by the general formula compounds represented by the general formula and compounds represented by the general formula wherein R and R', independently from each other, represent a linear alkyl group having 1 to 7 carbon atoms, and each cyclohexane ring is arranged in a trans(equatorial-equatorial) form. These compounds have higher nematic phaseisotropic liquid phase transition temperatures than conventional liquid crystalline compounds.

36. 发明专利

DE3324774A1 未知
公开(公告)号：DE3324774A1
公开(公告)日：1984-01-12
申请号：DE3324774
申请日：1983-07-08
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKATSU HARUYOSHI , SATO HISATO
IPC分类号： C07C29/10 , C07C29/143 , C07C45/46 , C07C49/84 , C07C69/773 , C09K19/30 , C07C69/90 , C07C69/75 , C09K3/34
摘要： A nematic liquid crytalline compound selected from the group consisting of compounds represented by the general formula compounds represented by the general formula compounds represented by the general formula and compounds represented by the general formula wherein R and R', independently from each other, represent a linear alkyl group having 1 to 7 carbon atoms, and each cyclohexane ring is arranged in a trans(equatorial-equatorial) form. These compounds have higher nematic phaseisotropic liquid phase transition temperatures than conventional liquid crystalline compounds.

37. 发明专利

HK1043147B 液晶顯示儀未知
公开(公告)号：HK1043147B
公开(公告)日：2011-07-29
申请号：HK02104596
申请日：2002-06-20
申请人： DAINIPPON INK & CHEMICALS
发明人： SUDO GO , KURIYAMA TAKESHI , KAWAKAMI SHOTARO , OHNISHI HIROYUKI , TAKATSU HARUYOSHI
IPC分类号： C09K20060101 , G02F1/13 , C09K19/02 , C09K19/20 , C09K19/30 , C09K19/44 , C09K19/46 , G02F20060101

38. 发明专利

DE602008003028D1 NEMATISCHE FLÜSSIGKRISTALLZUSAMMENSETZUNG UND BISTABILE NEMATISCHE FLÜSSIGKRISTALLANZEIGE 未知
公开(公告)号：DE602008003028D1
公开(公告)日：2010-11-25
申请号：DE602008003028
申请日：2008-05-16
申请人： DAINIPPON INK & CHEMICALS , NEMOPTIC
发明人： NAKATA HIDETOSHI , KURIYAMA TAKESHI , TAKEUCHI KIYOFUMI , TAKATSU HARUYOSHI , STOENESCU DANIEL , DUBOIS JEAN-CLAUDE , DOZOV IVAN
IPC分类号： C09K19/42

39. 发明专利

CA2381007C FUSED RING COMPOUND 未知
公开(公告)号：CA2381007C
公开(公告)日：2010-01-26
申请号：CA2381007
申请日：1999-09-10
申请人： DAINIPPON INK & CHEMICALS
发明人： OGAWA SHINJI , KAWARA TATSUO , TAKEHARA SADAO , OHNISHI HIROYUKI , TAKEUCHI KIYOFUMI , TAKATSU HARUYOSHI , GRAHE GERWALD , FRINGS RAINER BRUNO , FUGGER CHRISTINE , PITHART CORNELIA
IPC分类号： C07C25/22 , C07C13/567 , C07C13/60 , C07C15/30 , C07C22/08 , C07C23/18 , C07C23/38 , C07C25/18 , C07C25/24 , C07C43/225 , C07C49/675 , C07C49/697 , C07C255/50 , C07C255/55 , C09K19/02 , C09K19/32 , C09K19/34 , G02F1/13
摘要： A novel compound represented by the general formula (I), and a nematic liquid crystal composition incorporating the same. (See formula I) A compound represented by the general formula (I) can be produced industrially extremely easily, as shown in the examples, displays superior compatibility with current general purpose host liquid crystals as a nematic phase, and also shows little crystal precipitation at low temperatures. Moreover, by addition of a small amount of such a compound to a host liquid crystal, the liquid crystal temperature range at low temperatures can be effectively widened without any significant worsening of the various characteristics of the liquid crystal material. Consequently, a compound of the present invention is an extremely useful liquid crystal material which is suitable for various liquid crystal display elements which require a broad operating-temperature range.

40. 发明专利

DE69941162D1 未知
公开(公告)号：DE69941162D1
公开(公告)日：2009-09-03
申请号：DE69941162
申请日：1999-04-22
申请人： DAINIPPON INK & CHEMICALS
发明人： TAKEHARA SADAO , OSAWA MASASHI , TAKATSU HARUYOSHI , NEGISHI MAKOTO
IPC分类号： C07C25/22 , C07C17/26 , C07C17/269 , C07C17/354 , C07C25/18 , C07C25/24 , C07C43/225 , C07C43/257 , C07C255/50 , 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.

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