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公开(公告)号：US5858271A
公开(公告)日：1999-01-12
申请号：US796885
申请日：1997-02-07
申请人： Yasuko Sekiguchi , Etsuo Nakagawa , Toyoshiro Isoyama , Tetsuya Matsushita , Katsuyuki Murashiro
发明人： Yasuko Sekiguchi , Etsuo Nakagawa , Toyoshiro Isoyama , Tetsuya Matsushita , Katsuyuki Murashiro
摘要： Liquid crystal compositions are disclosed which satisfy various characteristics required of liquid crystal compositions used for TN-LCD or STN-LCD display mode, have a low viscosity to cope with the response at a high speed, have a high clearing point to cope with the change in environmental temperature, and have a small dependency of the pitch length on temperature. The liquid crystal compositions comprise, as a first component, at least one liquid crystalline 4-substituted-benzonitrile having a positive dielectric anisotropy, as a second component, at least one liquid crystalline compound having a small positive or negative dielectric anisotropy, and as chiral component A, at least one optically active compound expressed by general formula (X-a) or (X-b) ##STR1## wherein R.sup.0 represents an alkyl group or alkoxy group having 1 to 10 carbon atoms, X represents a halogen atom or CN, and Y represents an alkyl group having 1 to 10 carbon atoms or hydrogen atom.
摘要翻译： 公开了满足用于TN-LCD或STN-LCD显示模式的液晶组合物所需的各种特性的液晶组合物，具有低粘度以应对高速响应，具有高清亮度以应对变化 在环境温度下，具有很小的间距长度对温度的依赖性。 液晶组合物作为第一组分包含至少一种具有正介电各向异性的至少一种液晶4-取代 - 苄腈作为第二组分，至少一种具有小的正或负介电各向异性的液晶化合物和作为手性 （Xa）或（Xb）表示的至少一种光学活性化合物（Xb）（Xb）其中R0表示具有1-10个碳原子的烷基或烷氧基，X表示 卤素原子或CN，Y表示碳原子数1〜10的烷基或氢原子。
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公开(公告)号：US5683624A
公开(公告)日：1997-11-04
申请号：US573141
申请日：1995-12-15
CPC分类号： C09K19/42 , C09K19/3001 , C09K19/46
摘要： A LC material for TN and STN modes having a comparatively high .DELTA.n and a low viscosity is provided by a LC composition comprising a first component (formula I-c), a second component (formula II-c) and a third component (formula III or IV): ##STR1## wherein R.sup.1 is C.sub.1-10 alkyl; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are C.sub.1-10 alkyl or C.sub.2-10 alkenyl in which alkyl and alkenyl groups one or two non-adjacent methylenes may be replaced by --O--; R.sup.6 is C.sub.1-10 alkyl, alkoxy or alkoxymethyl; Z.sup.1 and Z.sup.3 are --CH.sub.2 CH.sub.2 --, --COO-- or a single bond; Z.sup.2 is --C.tbd.C--, --COO--, --CH.sub.2 CH.sub.2 -- or a single bond; Z.sup.4 is --C.tbd.C--, --COO-- or a single bond; Q.sup.1 is H or F; A.sup.2, B, C and E are trans-1,4-cyclohexylene or 1,4-phenylene; D is trans-1,4-cyclohexylene or 1,4-phenylene in which H(s) at 2- or 3-position may be replaced by F(s); and 1 is 0 or 1.
摘要翻译： 通过包含第一组分（式Ic），第二组分（式II-c）和第三组分（式III或其组合）的LC组合物提供具有较高DELTA n和低粘度的TN和STN模式的LC材料 （II）c）（II-c）R3（B）Z2（C）R4（Ⅲ）R3，R4和R5是C1-10烷基或C2-10烯基，其中烷基和烯基 一个或两个不相邻的亚甲基可以被-O-取代; R6是C1-10烷基，烷氧基或烷氧基甲基; Z 1和Z 3是-CH 2 CH 2 - ， - COO-或单键; Z2是-C3ONDC，-COO - ， - CH2CH2-或单键; Z4为-C3ONDC-，-COO-或单键; Q1为H或F; A2，B，C和E是反式-1,4-亚环己基或1,4-亚苯基; D是其中2-或3-位上的H（s）可以被F（s）代替的反式-1,4-亚环己基或1,4-亚苯基; 1为0或1。
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3.发明授权Liquid crystal composition and a liquid crystal display device containing the same 失效液晶组合物和含有该液晶组合物的液晶显示装置
公开(公告)号：US5723068A
公开(公告)日：1998-03-03
申请号：US608523
申请日：1996-02-28
CPC分类号： C09K19/3001 , C09K19/3003
摘要： A LC composition for active matrix addressed display mode having a high voltage holding ratio and a reduced threshold voltage is provided, which composition contains: a first component consisting at least one compound of following formula (1) and a second component consisting at least one compound selected from the group of compounds of formulas (4), (5) and (6): ##STR1## wherein R.sup.1 and R.sup.2 represent C.sub.1-10 alkyl; X.sup.1 and X.sup.2 represent F, CF.sub.3, or OCF.sub.3 ; L.sup.0 -L.sup.5 represent H or F; and Z.sup.1 represents a single bond or --CH.sub.2 CH.sub.2 --.
摘要翻译： 提供了一种具有高电压保持率和降低的阈值电压的有源矩阵寻址显示模式的LC组合物，该组合物包含：由至少一种下式（1）的化合物和至少一种化合物 （4），（5）其中R1和R2表示C1（R2），（6）其中R1和R2表示C1 -10烷基; X1和X2表示F，CF3或OCF3; L0-L5表示H或F; 且Z 1表示单键或-CH 2 CH 2 - 。
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公开(公告)号：US5650093A
公开(公告)日：1997-07-22
申请号：US583743
申请日：1996-01-17
CPC分类号： C09K19/3001
摘要： A LC composition for AM-LCD having a high clearing point is provided by a composition comprising a first component containing a compound(s) of formula (1) and a second component containing at least one compound expressed by any of formulas (2), (3) and (4): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 represent C.sub.1-10 alkyl; X.sup.1 represents F or Cl; Y.sup.1 and Y.sup.2 represent H or F; Z.sup.1 and Z.sup.2 represent --CH.sub.2 CH.sub.2 --, --COO-- or a single bond; and A and B represent 1,4-phenylene or trans-1,4-cyclohexylene.
摘要翻译： 具有高透明点的AM-LCD的LC组合物由包含含有式（1）化合物的第一组分和含有至少一种由式（2）， （3）和（4）：其中R1，R2和R3表示C1-10烷基;（3）其中R1，R2和R3表示C1-10烷基; X1表示F或Cl; Y1和Y2表示H或F; Z 1和Z 2表示-CH 2 CH 2 - ， - COO-或单键; A和B表示1,4-亚苯基或反式-1,4-亚环己基。
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公开(公告)号：US4877549A
公开(公告)日：1989-10-31
申请号：US160188
申请日：1988-02-25
CPC分类号： C09K19/42
摘要： A liquid crystal composition comprising at least one first component compound of formula (I), at least one second component compound of formula (II) and at least one third component compound of formula (III), ##STR1## wherein R.sup.1 is alkyl of 1 to 8 carbons; R.sup.2 is H or F; R.sup.3 is alkyl or alkoxy each of 1 to 8 carbons; and R.sup.4 is F, --CN, alkyl or alkoxy each of 1 to 8 carbons, the first, second and third component compounds contained in respective amounts of 20-40 wt. %, 10-40 wt. % and 20-50 wt. % and in a total amount of 70 wt. % or more in the composition is provided to improve a steepness of transmission vs. voltage curve in a SBE mode display cell which is operated at a high level of multiplexing.
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公开(公告)号：US5262084A
公开(公告)日：1993-11-16
申请号：US819659
申请日：1992-01-13
CPC分类号： C09K19/46 , C09K19/3003 , C09K19/42
摘要： The present invention provides a liquid crystal composition having a high clearing point, a low viscosity, a desired .DELTA.n (n.sub.e -n.sub.o) and an improved steepness of voltage-transmittance properties in the display of a supertwisted birefringence effect mode, and a liquid crystal display element having excellent contrast in which the liquid crystal composition is utilized.The present invention is directed to a liquid crystal composition characterized by containing a first component comprising a compound represented by the general formula ##STR1## wherein R.sup.1 is an alkenyl group having 2 to 8 carbon atoms, and a second component comprising a compound represented by the formula ##STR2## wherein R.sup.2 is an alkyl group having 1 to 8 carbon atoms, R.sup.3 is H or F, R.sup.4 is an alkoxy group, an alkyl group having 1 to 8 carbon atoms, F or a CN group.Furthermore, the present invention is also directed to a liquid crystal display element using the aforesaid liquid crystal composition.
摘要翻译： PCT No.PCT / JP88 / 01266 Sec。 371日期1989年8月8日 102（e）日期1989年8月8日PCT提交1988年12月14日PCT公布。 出版物WO89 / 05846 日期：1989年6月29日。本发明提供了一种具有高透明度，低粘度，期望的DELTA n（ne-no）的液晶组合物，并且在显示超扭曲双折射的情况下提高了电压 - 透射率特性的陡度 效果模式和具有优异对比度的液晶显示元件，其中液晶组合物被利用。 本发明涉及一种液晶组合物，其特征在于含有第一组分，该第一组分包含由通式“IMAGE”表示的化合物，其中R 1是具有2至8个碳原子的烯基，第二组分包含由 式中，R 2为碳原子数为1〜8的烷基，R 3为H或F，R 4为烷氧基，碳原子数1〜8的烷基，F或CN基。 此外，本发明还涉及使用上述液晶组合物的液晶显示元件。
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公开(公告)号：US4917818A
公开(公告)日：1990-04-17
申请号：US238509
申请日：1988-08-31
摘要： A nematic liquid crystal composition for multiplex drive display elements having superior characteristics, particularly a steep voltage-transmittance characteristic, is provided which composition comprises:(1) 10 to 50% by weight of first component comprising compound(s) of the formula ##STR1## wherein R.sub.1 1-8C alkyl and (2) 20 to 90% by weight of a second component comprising compounds of the following formulas (II), (III), (IV), (V) and (VI), the respective contents of which are 0-40, 0-50, 0-40, 0-40 and 0-40% by weight, the total weight of the first and second components being 60% by weight or more: ##STR2## wherein R.sub.2 is 1-10C alkyl, R.sub.3 is 1-10C alkyl or alkoxy ##STR3##
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公开(公告)号：US5021189A
公开(公告)日：1991-06-04
申请号：US507083
申请日：1990-04-05
CPC分类号： C09K19/42
摘要： The present invention provides a liquid crystal composition wherein properties required in the super twist birefringence effect mode (SBE mode), particularly the high transparent point, low viscosity, and controllable optical isotropic value (.DELTA.n) are kept well balanced, the steepness of the voltage-transmission property is improved, and the value of N.sub.max that indicates high multiplex properties is high.A liquid crystal composition is provided containing a first component represented by the general formula: ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group having 1 to 8 carbon atoms,and a second component represented by the general formula: ##STR2## wherein R.sup.3 represents an alkyl group having 1 to 8 carbon atoms, or an alkenyl group having 2 to 8 carbon atoms, R.sup.4 represents H or F, R.sup.5 represents a CN-group or F, and ##STR3## represents ##STR4## and a liquid crystal display device that uses the same.
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公开(公告)号：US4923632A
公开(公告)日：1990-05-08
申请号：US272942
申请日：1988-11-18
CPC分类号： C09K19/3003 , C09K19/42
摘要： A liquid crystal composition for twist nematic mode having improved reduction in threshold voltage and temperature dependency of the threshold voltage in a liquid crystal display element using the composition, and a liquid crystal display element are provided, which composition comprises a compound of the formula ##STR1## wherein R.sub.1 is 1-8C alkyl, R.sub.2 is F or CN and n is 1 or 2; or comprises the compound of the formula (I) as a first component and at least one member as a second component selected from compounds of the following formulas (II), (III) and (IV); ##STR2## wherein R.sub.3 is 1-8C alkyl and R.sub.4 is H or F, ##STR3## wherein R.sub.5 is 1-8C alkyl, R.sub.6 is 1-8C alkoxy or F, m is 1 or 2 and X is single bond or --COO--, and ##STR4## wherein R.sub.7 is 1-8C alkyl, R.sub.8 is 1-8C alkyl or alkoxy, F or CN and ##STR5##
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公开(公告)号：US4673529A
公开(公告)日：1987-06-16
申请号：US803215
申请日：1985-11-27
申请人： Shigeru Sugimori , Tetsuya Ogawa , Yasuyuki Goto , Toyoshiro Isoyama , Kazunori Nigorikawa , Kisei Kitano , Naoyuki Yoshida , Yoshito Furukawa
发明人： Shigeru Sugimori , Tetsuya Ogawa , Yasuyuki Goto , Toyoshiro Isoyama , Kazunori Nigorikawa , Kisei Kitano , Naoyuki Yoshida , Yoshito Furukawa
IPC分类号： C09K19/20 , C09K19/30 , C07C69/74 , C07C69/76 , C07C79/44 , C07C101/02 , C07C121/60 , C09K19/12
CPC分类号： C09K19/3068 , C09K19/2014
摘要： A novel liquid crystal compound useful as a component of liquid crystal compositions and a liquid crystal composition containing the same are provided, which compound is a phenoxypropanol ester derivative expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group or an alkoxy group each of 1 to 15 carbon atoms, F atom, Cl atom or CN group, but either one of R.sup.1 and R.sup.2 is necessarily said alkyl group or alkoxy group: A represents ##STR2## and B represents ##STR3##
摘要翻译： 提供了可用作液晶组合物组分的新型液晶化合物和含有该液晶组合物的液晶组合物，该化合物是由式（I）表示的苯氧基丙醇酯衍生物，其中R 1和R 2各自表示烷基 或1〜15个碳原子的烷氧基，F原子，Cl原子或CN基，但R 1和R 2中的任一个必定是所述烷基或烷氧基：A表示
+ TR 而B代表 + TR
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