公开(公告)号：US5364558A

公开(公告)日：1994-11-15

申请号：US94569

申请日：1993-07-20

Applicant: Yumiko Sakamaki ,  Tomijiro Naito ,  Toshiro Yukinari

Inventor： Yumiko Sakamaki ,  Tomijiro Naito ,  Toshiro Yukinari

IPC: C07C69/017 ,  C07C69/76 ,  C09K19/58 ,  C09K19/52

CPC classification number: C09K19/58 ,  C07C69/017 ,  C07C69/76

Abstract: An ester derivative represented by the following formula (I). ##STR1## In the formula, V, W, X, Y and Z represent a hydrogen atom or a halogen atom, respectively. The present invention also comprises a liquid crystal composition containing the ester derivative. The ester derivative can optimize the n value, lower the viscosity and reduce the threshold voltage Vth of the liquid crystal composition.

Abstract translation: 由下式（I）表示的酯衍生物。 （I）式中，V，W，X，Y和Z分别表示氢原子或卤素原子。 本发明还包含含有酯衍生物的液晶组合物。 酯衍生物可以优化n值，降低粘度并降低液晶组合物的阈值电压Vth。

公开(公告)号：US5342544A

公开(公告)日：1994-08-30

申请号：US968152

申请日：1992-10-26

Applicant: Tomijiro Naito ,  Yumiko Sato ,  Toshiro Yukinari ,  Toshihiro Shibata ,  Masaki Kimura ,  Yukari Shinada

Inventor： Tomijiro Naito ,  Yumiko Sato ,  Toshiro Yukinari ,  Toshihiro Shibata ,  Masaki Kimura ,  Yukari Shinada

IPC: C09K19/06 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K19/12 ,  C09K19/30

CPC classification number: C09K19/46 ,  C09K19/06 ,  C09K19/42 ,  C09K19/44

Abstract: A nematic liquid crystal composition comprising at least one member selected from 4-alkyl- or 4-alkoxy-benzoic acids represented by the following general formula (I) , particularly a nematic liquid crystal composition comprising a carboxylic acid mixture composed of at least one member selected from 4-alkyl- or 4-alkoxy-benzoic acids represented by the following general formula (I) and at least one member selected from 4-alkylcyclohexanecarboxylic acids represented by the following general formula (IV): ##STR1## wherein R.sub.1 stands for an alkyl or alkoxy group having 1 to 12 carbon atoms and R.sub.4 stands for an alkyl group having 1 to 12 carbon atoms.

Abstract translation: 一种向列型液晶组合物，其包含至少一种选自下列通式（I）表示的4-烷基 - 或4-烷氧基 - 苯甲酸的成分，特别是包含由至少一种成分 选自由以下通式（I）表示的4-烷基 - 或4-烷氧基 - 苯甲酸和选自以下通式（IV）表示的4-烷基环己烷羧酸中的至少一种： （IV）其中R1代表具有1至12个碳原子的烷基或烷氧基，R4代表具有1至12个碳原子的烷基。

公开(公告)号：US5656198A

公开(公告)日：1997-08-12

申请号：US628028

申请日：1996-04-04

Applicant: Tomijiro Naito ,  Yumiko Sakamaki ,  Katsuji Niino ,  Kikuo Yamamoto

Inventor： Tomijiro Naito ,  Yumiko Sakamaki ,  Katsuji Niino ,  Kikuo Yamamoto

IPC: C07C69/76 ,  C09K19/20 ,  C09K19/30 ,  C09K19/52 ,  G02F1/13

CPC classification number: C09K19/3068 ,  C07C69/76 ,  C09K19/2014

Abstract: A novel tolan compound of the formula (I): ##STR1## wherein A is a substituted or unsubstituted cyclohexyl or phenyl group; B is --CO--O-- or --O--CO--; X is a hydrogen atom, a halogen atom, a cyano group, a C.sub.1 -C.sub.10 alkyl group, or a C.sub.1 -C.sub.10 alkoxy group; Y is a hydrogen atom or a halogen atom; and m and n are an integer of 0 or 1, provided that m+n=0 or 1. The tolan compound can raise the N-I point and increase the double refractive index (.DELTA.n) of liquid crystal compositions. The liquid crystal composition containing this tolan compound has excellent characteristics as a liquid crystal material, and the liquid crystal display device using this liquid crystal composition has a wide temperature range and a wide visible angle and can be operated at a low driving voltage.

Abstract translation: 式（I）的新型兰烷化合物：其中A是取代或未取代的环己基或苯基; B是-CO-O-或-O-CO-; X是氢原子，卤素原子，氰基，C1-C10烷基或C1-C10烷氧基; Y是氢原子或卤素原子; m和n为0或1的整数，条件是m + n = 0或1.所述聚酰胺化合物可以提高N-I点并增加液晶组合物的双折射率（DELTA n）。 含有这种兰烷化合物的液晶组合物作为液晶材料具有优异的特性，并且使用该液晶组合物的液晶显示装置具有宽的温度范围和宽的可见光角，并且可以在低驱动电压下操作。

公开(公告)号：US5651919A

公开(公告)日：1997-07-29

申请号：US596373

申请日：1996-02-23

Applicant: Tomijiro Naito ,  Yumiko Sakamaki ,  Hisato Sato

Inventor： Tomijiro Naito ,  Yumiko Sakamaki ,  Hisato Sato

IPC: C07C43/188 ,  C07C43/192 ,  C07C43/21 ,  C09K19/30 ,  G09K19/30 ,  C07C25/13 ,  C07C43/00 ,  G02F1/13

CPC classification number: C07C43/192 ,  C07C43/188 ,  C07C43/21 ,  C09K19/3001 ,  C09K19/3066 ,  C07C2101/14

Abstract: Disclosed are a benzyl ether derivative represented by the following formula (I), useful as a liquid crystal display material, and a liquid crystal composition containing the same and a liquid crystal display device utilizing the composition. ##STR1## [wherein A represents a 4-alkylcyclohexyl group or an alkyl group, B represents a di- or tri-fluorophenyl group, a 4-(di- or tri-fluorophenyl)phenyl group, a 4-alkylphenyl group or a 4-alkoxyphenyl group].The compound (I) of the present invention has good compatibility with other compounds, and can be used in a liquid crystal composition by combining with many liquid crystal materials as a constitutional component of the liquid crystal composition. It has functions of lowering a C-N point of a liquid crystal composition, lowering a threshold voltage by enlarging a dielectric anisotropy, and also lowering a viscosity and increasing a N-I point of the liquid crystal composition. Further, according to selection thereof, it is also possible to change an optical anisotropy, and can be advantageously used for improving characteristics of a liquid crystal composition particularly for a TN type, STN type or active type liquid crystal display device.

Abstract translation: PCT No.PCT / JP95 / 01226 Sec。 371日期1996年2月23日 102（e）日期1996年2月23日PCT提交1995年6月20日PCT公布。 公开号WO96 / 00204 日期1996年1月4日公开是用作液晶显示材料的下式（I）表示的苄基醚衍生物，以及含有该苄基醚衍生物的液晶组合物和利用该组合物的液晶显示装置。 己基或烷基，B表示二 - 或三氟苯基，4-（二 - 或三氟苯基）苯基，4-烷基苯基或4-烷氧基苯基]。 本发明的化合物（I）与其它化合物具有良好的相容性，可以通过与作为液晶组合物的组成成分的许多液晶材料组合而与液晶组合物一起使用。 它具有降低液晶组合物的C-N点，通过扩大介电各向异性降低阈值电压以及降低粘度和提高液晶组合物的N-I点的功能。 此外，根据其选择，也可以改变光学各向异性，并且可以有利地用于改善特别用于TN型，STN型或有源型液晶显示装置的液晶组合物的特性。

公开(公告)号：US06174573B1

公开(公告)日：2001-01-16

申请号：US09314297

申请日：1999-05-19

Applicant: Tomijiro Naito ,  Kikuo Yamamoto ,  Katsuji Niino ,  Yumiko Sakamaki

Inventor： Tomijiro Naito ,  Kikuo Yamamoto ,  Katsuji Niino ,  Yumiko Sakamaki

IPC: C09K1930

CPC classification number: C09K19/3059 ,  C07C69/75 ,  C07C69/76 ,  C09K19/18 ,  C09K19/2014 ,  Y10T428/10

Abstract: A novel tolan compound of the formula (I): wherein A is C1-10 alkyl, C1-10 alkoxy, cyclohexyl substituted by C1-10 alkyl at 4 position, cyclohexyl substituted by C1-10 alkoxy group at 4 position or a group of the formula: wherein Y is hydrogen or halogen and Z is C1-10 alkyl or halogen; B is a single bond or —CO—O— or —O—CO—; D is hydrogen, C1-10 alkyl, cyclohexyl substituted by C1-10 alkyl at 4 position; and Z represents a hydrogen atom or a halogen atom. The tolan compound can increase the N-I point, decrease the viscosity, and increase the double refractive index of a liquid crystal composition without affecting the viscosity and threshold voltage Vth, and is mutually soluble with various other liquid crystal compounds, so that the compound can be used as a constituent of a liquid crystal composition in combination with these other liquid crystal materials to improve the properties of the composition.

Abstract translation: 式（I）的新型兰烷化合物：其中A为C 1-10烷基，C 1-10烷氧基，被4位上被C 1-10烷基取代的环己基，在4位被C 1-10烷氧基取代的环己基或 其中Y是氢或卤素，Z是C 1-10烷基或卤素; B是单键或-CO-O-或-O-CO-; D是氢，C 1-10烷基，在C 4位上被C 1-10烷基取代的环己基; Z表示氢原子或卤素原子。 Tolan化合物可以增加NI点，降低粘度，并且增加液晶组合物的双重折射率而不影响粘度和阈值电压Vth，并且与各种其它液晶化合物相互溶解，使得化合物可以 用作与这些其它液晶材料组合的液晶组合物的组分以改善组合物的性质。

公开(公告)号：US5972244A

公开(公告)日：1999-10-26

申请号：US5686

申请日：1998-01-13

Applicant: Tomijiro Naito ,  Kikuo Yamamoto ,  Katsuji Niino ,  Yumiko Sakamaki

Inventor： Tomijiro Naito ,  Kikuo Yamamoto ,  Katsuji Niino ,  Yumiko Sakamaki

IPC: C07C69/75 ,  C07C69/76 ,  C09K19/18 ,  C09K19/20 ,  C09K19/30

CPC classification number: C09K19/3059 ,  C07C69/75 ,  C07C69/76 ,  C09K19/18 ,  C09K19/2014 ,  Y10T428/10

Abstract: A novel tolan compound of the formula (I): ##STR1## wherein A is C.sub.1-10 alkyl, C.sub.1-10 alkoxy, cyclohexyl substituted by C.sub.1-10 alkyl at 4 position, cyclohexyl substituted by C.sub.1-10 alkoxy group at 4 position or a group of the formula: ##STR2## wherein Y is hydrogen or halogen and Z is C.sub.1-10 alkyl or halogen; B is a single bond or --CO--O-- or --O--CO--; D is hydrogen, C.sub.1-10 alkyl, cyclohexyl substituted by C.sub.1-10 alkyl at 4 position; and Z represents a hydrogen atom or a halogen atom. The tolan compound can increase the N-I point, decrease the viscosity, and increase the double refractive index of a liquid crystal composition without affecting the viscosity and threshold voltage Vth, and is mutually soluble with various other liquid crystal compounds, so that the compound can be used as a constituent of a liquid crystal composition in combination with these other liquid crystal materials to improve the properties of the composition.

Abstract translation: 式（I）的新型兰烷化合物：其中A为C 1-10烷基，C 1-10烷氧基，被4位上被C 1-10烷基取代的环己基，在4位被C 1-10烷氧基取代的环己基或 其中Y是氢或卤素，Z是C 1-10烷基或卤素; B是单键或-CO-O-或-O-CO-; D是氢，C 1-10烷基，在C 4位上被C 1-10烷基取代的环己基; Z表示氢原子或卤素原子。 Tolan化合物可以增加NI点，降低粘度，并且增加液晶组合物的双重折射率而不影响粘度和阈值电压Vth，并且与各种其它液晶化合物相互溶解，使得化合物可以 用作与这些其它液晶材料组合的液晶组合物的组分以改善组合物的性质。

公开(公告)号：US5342546A

公开(公告)日：1994-08-30

申请号：US888634

申请日：1992-05-27

Applicant: Hisato Sato ,  Tomijiro Naito ,  Yasunobu Tuji

Inventor： Hisato Sato ,  Tomijiro Naito ,  Yasunobu Tuji

IPC: C07C13/28 ,  C07C25/18 ,  C07C43/21 ,  C07C43/225 ,  C07C69/76 ,  C09K19/30 ,  C09K19/06 ,  C09K19/52 ,  G02F1/13

CPC classification number: C09K19/3098 ,  C07C13/28 ,  C07C25/18 ,  C07C43/21 ,  C07C43/225 ,  C07C69/76 ,  C07C2101/14 ,  C07C2101/16

Abstract: Particular 1,4-substituted dihydrobenzene derivatives are useful as liquid crystalline materials. They are represented by the following formula (I): ##STR1## wherein A means a 1,4-dihydrophenylene group, R denotes a hydrogen atom or an alkyl or trans-4-alkylcyclohexyl group, R' represents a hydrogen or halogen atom, a trifluoromethyl, trifluoromethoxy, cyano, alkyl, alkoxyl or carboxyl group or a group --COO--B--R" in which B stands for an unsubstituted or halogen-substituted 1,4-phenylene or 1,4-cyclohexenylene group and R" represents a halogen atom or a cyano, alkyl or alkoxyl group, and X, Y and Z individually mean a hydrogen or halogen atom.

Abstract translation: 特别是1,4-取代的二氢苯衍生物可用作液晶材料。 它们由下式（I）表示：烯基，R表示氢原子或烷基或反式-4-烷基环己基，R'表示氢或卤素原子，三氟甲基，三氟甲氧基，氰基，烷基，烷氧基或 羧基或基团-COO-B-R“，其中B表示未取代或卤素取代的1,4-亚苯基或1,4-亚环己烯基，R”表示卤素原子或氰基，烷基或 烷氧基，X，Y和Z各自表示氢或卤素原子。