公开(公告)号：US5258135A

公开(公告)日：1993-11-02

申请号：US912118

申请日：1992-07-09

申请人： Keiko Uchida ,  Taku Hirose ,  Shinichi Sawada

发明人： Keiko Uchida ,  Taku Hirose ,  Shinichi Sawada

IPC分类号： C09K19/30 ,  G02F1/13

CPC分类号： C09K19/3003

摘要： Liquid crystal compositions comprising: at least one of the compounds of the general formula (I) and at least one of the compounds of the general formula (II); and optionally including at least one of the compounds of the general formula (III), or, when compound (III) is present, optionally including at least one of the compounds of the general formula (IV) are provided. ##STR1## All the symbols are as defined in the appended claims, namely, R.sup.1 is an alkyl group having 1 to 5 carbon atoms; R.sup.2 is an alkyl group having 2 to 8 carbon atoms; R.sup.3 is an alkyl group having 1 to 5 carbon atoms; R.sup.4 is an alkyl group having 2 to 8 carbon atoms; R.sup.5 is H or F; R.sup.6 is an alkyl group having 1 to 8 carbon atoms, an alkoxyl group having 1 to 8 carbon atoms, F, or a CN group; and R.sup.7 is an alkyl group having 2 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms. The compositions are suitable for use in highly multiplexed displays of the supertwisted birefringence effect mode.

摘要翻译： 液晶组合物，其包含：至少一种通式（I）的化合物和至少一种通式（II）的化合物; 并且任选地包括至少一种通式（III）的化合物，或者当存在化合物（III）时，任选地包括至少一种通式（IV）的化合物。 （Ⅰ）通式（Ⅱ）：通式（Ⅱ）：（Ⅰ）通式（Ⅱ）通式（Ⅲ）通式（Ⅲ）通式（Ⅳ）通式（Ⅳ） 符号如所附权利要求中所定义，即R1为具有1至5个碳原子的烷基; R2是具有2-8个碳原子的烷基; R3是具有1至5个碳原子的烷基; R4是具有2-8个碳原子的烷基; R5为H或F; R6是碳原子数为1〜8的烷基，碳原子数1〜8的烷氧基，F或CN基团。 R 7为碳原子数2〜10的烷基或碳原子数2〜10的烯基。 该组合物适用于超扭曲双折射效应模式的高度复用的显示器。

公开(公告)号：US5439613A

公开(公告)日：1995-08-08

申请号：US173068

申请日：1993-12-27

申请人： Fusayuki Takeshita ,  Taku Hirose ,  Kanetsugu Terashima ,  Sinichi Sawada

发明人： Fusayuki Takeshita ,  Taku Hirose ,  Kanetsugu Terashima ,  Sinichi Sawada

IPC分类号： C09K19/30 ,  C09K19/42 ,  C09K19/50 ,  C09K19/58 ,  G02F1/13 ,  C09K19/12 ,  C09K19/32

CPC分类号： C09K19/50 ,  C09K19/3001 ,  C09K19/586

摘要： A liquid crystal composition which is a liquid crystal mixture of an achiral liquid crystal compound of the following formula (IV) with a chiral compound having an adsorptivity to adsorbents, not greater than that of the achiral compound: ##STR1## wherein six-membered rings A', B', C' and D' each independently are trans-1,4-cyclohexylene, 1-cyclohexene-1,4-diyl or 1,4-phenylene; g, h and i each are 0 or 1; (g+h+i).gtoreq.1; X', Y' and Z' each independently are a single bond, --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH-- or --C.tbd.C--; R.sup.7 is C.sub.n H.sub.2n+1 --, C.sub.n H.sub.2n-1 or C.sub.n H.sub.2n+1 OC.sub.k H.sub.2k --; R.sup.8 is C.sub.m H.sub.2m+1 --, C.sub.m H.sub.2m+1 O--, F, CHF.sub.2 O or CF.sub.3 O--; n and m each independently are an integer of 1 to 18; k is an integer of 1 to 17; (n+k) is 2 to 18; at least one of X', Y' and Z' is single bond; when ring D' is 1,4-phenylene and R.sup.8 is F, CHF.sub.2 O-- or CF.sub.3 O--, then H at ortho position as regards R.sup.8 may be replaced by F; and when g is 1 and ring B' or C' is 1,4-phenylene, then H at the lateral position of the ring may be replaced by F.

摘要翻译： 作为下式（IV）的非手性液晶化合物与对吸附剂具有吸附性的手性化合物的液晶混合物的液晶组合物，不大于非手性化合物：“IMAGE”D“各自独立地为 反式-1,4-亚环己基，1-环己烯-1,4-二基或1,4-亚苯基; g，h和i各自为0或1; （g + h + i）> / = 1; X'，Y'和Z'各自独立地为单键，-CH 2 -CH 2 - ， - CH = CH-或-CB 3 C-; R7是CnH2n + 1-，CnH2n-1或CnH2n + 1OCkH2k-; R8是CmH2m + 1-，CmH2m + 10，F，CHF2O或CF3O-; n和m各自独立地为1至18的整数; k为1〜17的整数。 （n + k）为2〜18; X'，Y'和Z'中的至少一个是单键; 当环D'为1,4-亚苯基且R8为F，CHF2O-或CF3O-时，则关于R8的邻位的H可被F取代; 当g为1且环B'或C'为1,4-亚苯基时，则环的横向位置的H可以被F替代。

公开(公告)号：US5102577A

公开(公告)日：1992-04-07

申请号：US510629

申请日：1990-04-18

申请人： Keiko Uchida ,  Taku Hirose ,  Shinichi Sawada

发明人： Keiko Uchida ,  Taku Hirose ,  Shinichi Sawada

IPC分类号： G02F1/13 ,  C09K19/30 ,  C09K19/42

CPC分类号： C09K19/42 ,  C09K19/3003

摘要： Liquid crystal compositions and display devices using the compositions are disclosed. The compositions contain, as main components, at least one compound of the general formula (I), and at least one compound of the general formula (II), or, as well as the above components, at least one compound selected from the compounds of the general formulas (III), (IV) and (V), and/or at least one compound of the general formula (VI). ##STR1## (wherein all the symbols are as defined in the appended claims).

公开(公告)号：US5358662A

公开(公告)日：1994-10-25

申请号：US68952

申请日：1993-05-28

申请人： Taku Hirose ,  Kanetsugu Terashima ,  Shinichi Sawada

发明人： Taku Hirose ,  Kanetsugu Terashima ,  Shinichi Sawada

IPC分类号： C09K19/30 ,  C09K19/42 ,  G02F1/13 ,  C09K19/12 ,  C09K19/52

CPC分类号： C09K19/3048 ,  C09K19/3001

摘要： A liquid crystal composition comprising (1) at least one compound selected from those expressed by the formula (I) and (2) at least one compound selected from those expressed by the formulas (II), (III), (IV) and (V): ##STR1## wherein R.sub.1 to R.sub.5 are C.sub.1-10 alkyl; R.sub.6 and R.sub.7 are C.sub.1-10 alkyl or alkenyl; X is H or F; X.sub.1 and X.sub.2 are F, --CF.sub.3, --OCF.sub.3, --CHF.sub.2 or --OCHF.sub.2 ; Y.sub.1 and Y.sub.2 are H or F; Z.sub.1, Z.sub.2 and Z.sub.4 are --COO--, --CH.sub.2 CH.sub.2 -- or a single bond; Z.sub.3, Z.sub.5 and Z.sub.6 are --COO--, --CH.sub.2 CH.sub.2 --, --C.tbd.C-- or a single bond; and A is ##STR2## which composition is provided with characteristics of high specific resistance, low viscosity while keeping small current consumption, a suitable clearing point and threshold voltage.

摘要翻译： 一种液晶组合物，其包含（1）选自由式（I）和（2）表示的化合物中的至少一种化合物至少一种选自式（II），（III），（IV）和（IV） （I）其中R 1至R 5为C 1-10烷基; R6和R7是C1-10烷基或烯基; X为H或F; X 1和X 2是F，-CF 3，-OCF 3，-CHF 2或-OCHF 2; Y1和Y2是H或F; Z 1，Z 2和Z 4是-COO - ， - CH 2 CH 2 - 或单键; Z 3，Z 5和Z 6是-COO - ， - CH 2 CH 2 - ， - C 3 D C或单键; 并且A是，该组合物具有高电阻率，低粘度特性，同时保持小的电流消耗，合适的清除点和阈值电压。