公开(公告)号：US06326065B1

公开(公告)日：2001-12-04

申请号：US09203671

申请日：1998-12-01

申请人： Yasuhiro Haseba ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yoshitaka Tomi ,  Fusayuki Takeshita ,  Etsuo Nakagawa

发明人： Yasuhiro Haseba ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yoshitaka Tomi ,  Fusayuki Takeshita ,  Etsuo Nakagawa

IPC分类号： C09K1930

摘要： Liquid crystalline compounds having a comparatively high voltage holding ratio, high &Dgr;n and high &Dgr;&egr;, and excellent miscibility with known liquid crystalline compounds at low temperatures. The novel compounds have the formula (1) wherein R represents hydrogen atom or an alkyl group having 1 to 20 carbon atoms; n1 and n2 are independently 0, 1, or 2 provided that the sum of n1 and n2 is 1 or 2; ring A and ring B independently represent 1,4-phenylene, fluorine substituted 1,4-phenylene expressed by the formula (a) in the specification or 1,4-cyclohexylene provided that at least one of ring A and ring B is fluorine substituted 1,4-phenylene expressed by the formula (a); Za, Zb, and Zc independently represent single bond, —CH2CH2—, —COO—, —CF2O—, or —CH2CH2CH2CH2—; Q1, Q2, Q3, Q4, Q5, Q6, and Q7 independently represent hydrogen atom, a halogen atom, or methyl group provided that when at least one of Za, Zb, and Zc is —CH2CH2—, then Q2 is fluorine atom, and that when Za, Zb, and Zc are all single bonds, then Q1, Q2, Q3, Q4, Q5, Q6, and Q7 independently represent hydrogen atom or fluorine atom; Y represents hydrogen atom, a halogen atom, or a halogenated alkyl group having 1 to 5 carbon atoms; and each atom constituting this compound may be replaced by its isotope.

摘要翻译： 具有比较高的电压保持率，高DELTAn和高DELTAepsi的液晶化合物，以及在低温下与已知液晶化合物的优异的混溶性。 新化合物具有式（1）其中R表示氢原子或具有1至20个碳原子的烷基; n1和n2独立地为0,1或2，条件是n1和n2的和为1或2; 环A和环B独立地表示说明书中所示的1,4-亚苯基，由式（a）表示的氟取代的1,4-亚苯基或1,4-亚环己基，条件是环A和环B中的至少一个为氟取代的 由式（a）表示的1,4-亚苯基; Za，Zb和Zc独立地表示单键，-CH2CH2-，-COO-，-CF2O-或-CH2CH2CH2CH2-; Q1，Q2，Q3，Q4，Q5，Q6和Q7独立地表示氢原子，卤素原子或甲基，条件是当Za，Zb和Zc中的至少一个是-CH 2 CH 2 - 时，则Q2是氟原子， 当Za，Zb和Zc都是单键时，Q1，Q2，Q3，Q4，Q5，Q6和Q7独立地表示氢原子或氟原子; Y表示氢原子，卤素原子或碳原子数1〜5的卤代烷基; 并且构成该化合物的每个原子可以被其同位素代替。

公开(公告)号：US06187223B1

公开(公告)日：2001-02-13

申请号：US09335783

申请日：1999-06-18

申请人： Tugumiti Andou ,  Koichi Shibata ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasusuke Hisatsune ,  Fusayuki Takeshita ,  Etsuo Nakagawa ,  Katsuhiko Kobayashi ,  Yoshitaka Tomi

发明人： Tugumiti Andou ,  Koichi Shibata ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasusuke Hisatsune ,  Fusayuki Takeshita ,  Etsuo Nakagawa ,  Katsuhiko Kobayashi ,  Yoshitaka Tomi

IPC分类号： C09K1930

CPC分类号： C09K19/04 ,  C07C43/225 ,  C07C69/017 ,  C07C69/753 ,  C07C69/76 ,  C07C2601/14 ,  C09K19/30 ,  C09K19/3001 ,  C09K19/3066 ,  C09K19/3068 ,  C09K19/3098 ,  C09K19/46 ,  Y10T428/10

摘要： A compound expressed by the general formula (1): wherein R1 denotes an alkyl group having from 1 to 20 carbon atoms in which one or more methylene groups in said group may be replaced by oxygen atoms or —CH═CH— and one or more hydrogen atoms in said group may be replaced by flourine or chlorine atoms, with the proviso that two or more methylene groups may not be continuously replaced by oxygen atoms, Y1 denotes an alkoxy group having 1 to 5 carbon atoms, in which at least one hydrogen atom is replaced by a fluorine atom and one or more hydrogen atoms may be further replaced by chlorine atoms, Z1, Z2 and Z3 each independently denote a covalent bond, —CH2CH2—, —CH═CH—, —COO— or —CF2)—, with the proviso that at least one of Z1, Z2 and Z3 is —COO— or —CF2O—, rings A1, A2, A3 and A4 each independently denote trans-1,4-cyclohexylene, 3-cyclohexen-1,4-ylene, 3-fluoro-3-cyclohexen-1,4-ylene, pyrimidine-2,5-diyl, 1,3-dioxan-2,5-diyl, trans-1-sila-1,4-cyclohexylene, trans-4-sila-1,4-cyclohexylene, or 1,4-phenylene in which one or more hydrogen atoms may be replaced by fluorine atoms or chlorine atoms, and m and n denote 0 or 1, with the proviso that when Z1, Z2 or Z3 is —CF2O—, then at least two groups selected from rings A1, A2, A3 and A4 directly bonded to —CF2O— are both 1,4-phenylene in which one or more hydrogen atoms may be replaced by fluorine atoms or chlorine atoms, and any of the rings A1, A2 and A3 bonded with the carbon atoms of —CF2O— is 1,4-phenylene in which at least one hydrogen atom is replaced by fluorine or chlorine atoms.

摘要翻译： 由通式（1）表示的化合物：其中R1表示具有1至20个碳原子的烷基，其中所述基团中的一个或多个亚甲基可被氧原子或-CH = CH-代替，并且一个或多个 所述基团中的氢原子可以被氟或氯原子代替，条件是两个或更多个亚甲基可以不被氧原子连续替代，Y1表示具有1至5个碳原子的烷氧基，其中至少一个氢 原子被氟原子取代，一个或多个氢原子可以进一步被氯原子取代，Z 1，Z 2和Z 3各自独立地表示共价键，-CH 2 CH 2 - ， - CH = CH - ， - COO-或-CF 2） - ，条件是Z1，Z2和Z3中的至少一个为-COO-或-CF2O-，环A1，A2，A3和A4各自独立地表示反式-1,4-亚环己基，3-环己烯-1,4 亚苯基，3-氟-3-环己烯-1,4-亚基，嘧啶-2,5-二基，1,3-二恶烷-2,5-二基，反式-1-硅烷-1,4-亚环己基，反式 -4-硅烷-1,4-亚环己基，o 其中一个或多个氢原子可以被氟原子或氯原子代替的1,4-亚苯基，m和n表示0或1，条件是当Z1，Z2或Z3为-CF2O-时，则至少两个 与-CF 2 O-直接键合的环A1，A2，A3和A4所选择的基团均为1,4-亚苯基，其中一个或多个氢原子可以被氟原子或氯原子代替，任何环A1，A2和 与-CF 2 O-的碳原子键合的A 3是其中至少一个氢原子被氟或氯原子代替的1,4-亚苯基。

公开(公告)号：US6007740A

公开(公告)日：1999-12-28

申请号：US966455

申请日：1997-11-07

申请人： Tugumiti Andou ,  Koichi Shibata ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasusuke Hisatsune ,  Fusayuki Takeshita ,  Etsuo Nakagawa ,  Katsuhiko Kobayashi ,  Yoshitaka Tomi

发明人： Tugumiti Andou ,  Koichi Shibata ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasusuke Hisatsune ,  Fusayuki Takeshita ,  Etsuo Nakagawa ,  Katsuhiko Kobayashi ,  Yoshitaka Tomi

IPC分类号： G02F1/13 ,  C07C43/192 ,  C07C43/225 ,  C07C69/017 ,  C07C69/75 ,  C07C69/753 ,  C07C69/76 ,  C07C69/773 ,  C07C255/54 ,  C07D239/26 ,  C09K19/04 ,  C09K19/08 ,  C09K19/12 ,  C09K19/14 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34 ,  C09K19/42 ,  C09K19/46 ,  C07C22/00

CPC分类号： C09K19/04 ,  C07C43/225 ,  C07C69/017 ,  C07C69/753 ,  C07C69/76 ,  C09K19/30 ,  C09K19/3001 ,  C09K19/3066 ,  C09K19/3068 ,  C09K19/3098 ,  C09K19/46 ,  C07C2101/14 ,  Y10T428/10

摘要： A compound expressed by the general formula (1): whereinR.sup.1 denotes an alkyl group having 1 to 20 carbon atoms in which one or more methylene groups in said group may be replaced by oxygen atoms or --CH.dbd.CH-- and one or more hydrogen atoms in said group may be replaced by fluorine or chlorine atoms, with the proviso that two or more methylene groups may not be continuously replaced by oxygen atoms;Y.sup.1 denotes a halogen atom, CN, CF.sub.3, CHF.sub.2 or an alkoxy group having 1 to 5 carbon atoms, in which at least one hydrogen atom is replaced by a fluorine atom and one or more hydrogen atoms may be further replaced by chlorine atoms;Z.sup.1, Z.sup.2 and Z.sup.3 each independently denote a covalent bond, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH-- or CF.sub.2 O--, with the proviso that at least one of Z.sup.1, Z.sup.2, and Z.sup.3 is --CF.sub.2 O--;rings A.sup.1, A.sup.2 and A.sup.3 each independently denote trans-1,4-cyclohexylene, 3-cyclohexene-1,4-ylene, 3-fluoro-3-cyclohexene-1,4-ylene, pyrimidine-2,5-diyl, 1,3-dioxane-2,5-diyl, trans-1-sila-1,4-cyclohexylene, trans-4-sila-1,4-cyclohexylene or 1,4-phenylene in which one or more hydrogen atoms may be replaced by fluorine atoms or chlorine atoms,with the proviso thatring A.sup.1, A.sup.2 or A.sup.3 bonded with the carbon atom of --CF.sub.2 O-- is a member selected from the group consisting of trans-1,4-cyclohexylene, 3-cyclohexene-1,4-ylene, and 3-fluoro-3-cyclohexene-1,4-ylene;ring A.sup.4 denotes 1,4-phenylene in which one or more hydrogen atoms may be replaced by fluorine atoms or chlorine atoms; andm and n each independently denote 0 or 1.

摘要翻译： 由通式（1）表示的化合物：其中R 1表示具有1至20个碳原子的烷基，其中所述基团中的一个或多个亚甲基可被氧原子取代或-CH = CH-，并且一个或多个氢 所述基团中的原子可以被氟或氯原子替代，条件是两个或更多个亚甲基不能被氧原子连续替代; Y1表示卤原子，CN，CF3，CHF2或碳原子数为1〜5的烷氧基，其中至少一个氢原子被氟原子代替，一个或多个氢原子可以被氯原子取代; Z 1，Z 2和Z 3各自独立地表示共价键，-CH 2 CH 2 - ， - CH = CH-或CF 2 O-，条件是Z 1，Z 2和Z 3中的至少一个是-CF 2 O-。 环A1，A2和A3各自独立地表示反式-1,4-亚环己基，3-环己烯-1,4-亚基，3-氟-3-环己烯-1,4-基，嘧啶-2,5-二基，1 ，3-二恶烷-2,5-二基，反式-1-硅烷-1,4-亚环己基，反式-4-硅烷-1,4-亚环己基或1,4-亚苯基，其中可以被一个或多个氢原子取代 通过氟原子或氯原子，条件是与-CF 2 O-的碳原子键合的环A1，A2或A3是选自反式-1,4-亚环己基，3-环己烯-1,4 亚苯基和3-氟-3-环己烯-1,4-亚苯基; 环A4表示其中一个或多个氢原子可被氟原子或氯原子代替的1,4-亚苯基; m和n各自独立地表示0或1。

公开(公告)号：US5961881A

公开(公告)日：1999-10-05

申请号：US966417

申请日：1997-11-07

申请人： Tugumiti Andou ,  Koichi Shibata ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasusuke Hisatsune ,  Fusayuki Takeshita ,  Etsuo Nakagawa ,  Katsuhiko Kobayashi ,  Yoshitaka Tomi

发明人： Tugumiti Andou ,  Koichi Shibata ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasusuke Hisatsune ,  Fusayuki Takeshita ,  Etsuo Nakagawa ,  Katsuhiko Kobayashi ,  Yoshitaka Tomi

IPC分类号： G02F1/13 ,  C07C43/225 ,  C07C69/017 ,  C07C69/753 ,  C07C69/76 ,  C09K19/04 ,  C09K19/30 ,  C09K19/42 ,  C09K19/46 ,  C09K19/06 ,  C09K19/12 ,  C09K19/20

CPC分类号： C07C69/017 ,  C07C43/225 ,  C07C69/753 ,  C07C69/76 ,  C09K19/04 ,  C09K19/30 ,  C09K19/3001 ,  C09K19/3066 ,  C09K19/3068 ,  C09K19/3098 ,  C09K19/46 ,  C07C2101/14

摘要： There is provided a liquid crystal composition in particular with a low threshold voltage and a wide range of nematic phase temperature (with high TNI point and low TC), while satisfying various properties required for liquid crystal compositions for active matrix type liquid crystal display elements. The composition contains, for example, compounds represented by general formulas (1-1) and (2-1): ##STR1## where each R.sub.1 independently represents an alkyl group having 1 to 10 carbon atoms; X.sub.1 represents H or F; and each X.sub.2 independently represents F, OCF.sub.3, CF.sub.3, or OCF.sub.2 H.

摘要翻译： 提供了具有低阈值电压和宽范围的向列相温度（具有高TNI点和低TC）的液晶组合物，同时满足有源矩阵型液晶显示元件的液晶组合物所需的各种性能。 该组合物含有例如由通式（1-1）和（2-1）表示的化合物：其中每个R 1独立地表示具有1至10个碳原子的烷基; X1表示H或F; 并且每个X2独立地表示F，OCF3，CF3或OCF2H。

公开(公告)号：US06214256B1

公开(公告)日：2001-04-10

申请号：US09388431

申请日：1999-09-02

申请人： Yoshitaka Tomi ,  Fusayuki Takeshita ,  Etsuo Nakagawa

发明人： Yoshitaka Tomi ,  Fusayuki Takeshita ,  Etsuo Nakagawa

IPC分类号： C09K1930

CPC分类号： C09K19/42

摘要： A liquid crystal composition is disclosed which comprises: as a first component at least one of the compounds of the following formulas (1-1) and (1-2); as a second component at least one of the compounds of the following formula (2); as a third component at least one of the compounds of the following formulas (3-1) and (3-2); and as a fourth component at least one of the compounds of the following formulas (4-1) to (4-3)

摘要翻译： 公开了一种液晶组合物，其包含：作为第一组分的至少一种下式（1-1）和（1-2）的化合物;作为第二组分，至少一种下式的化合物（ 2）;作为第三成分的至少一种下式（3-1）和（3-2）的化合物; 以及下述式（4-1）〜（4-3）中的至少一种化合物的第四成分，

公开(公告)号：US06335064B1

公开(公告)日：2002-01-01

申请号：US09641916

申请日：2000-08-21

申请人： Yoshitaka Tomi ,  Fusayuki Takeshita ,  Etsuo Nakagawa

发明人： Yoshitaka Tomi ,  Fusayuki Takeshita ,  Etsuo Nakagawa

IPC分类号： C09K1930

CPC分类号： C09K19/3001 ,  Y10T428/10

摘要： A novel liquid crystal composition comprising three components: at least one difluoro-oxymethane derivative, at least one trifluorophenyl derivative and a monofluorophenyl dervivative. The composition exhibits a high voltage holding ratio at high temperatures, sufficiently low threshold voltage and large optical anisotropy, while satisfying general characteristics required for the AM-LCD display mode.

摘要翻译： 包含三种组分的新型液晶组合物：至少一种二氟 - 氧代甲烷衍生物，至少一种三氟苯基衍生物和单氟苯基衍生物。 组合物在高温下表现出高电压保持率，足够低的阈值电压和大的光学各向异性，同时满足了AM-LCD显示模式所需的一般特性。

公开(公告)号：US6162372A

公开(公告)日：2000-12-19

申请号：US388443

申请日：1999-09-02

申请人： Yoshitaka Tomi ,  Fusayuki Takeshita ,  Etsuo Nakagawa

发明人： Yoshitaka Tomi ,  Fusayuki Takeshita ,  Etsuo Nakagawa

IPC分类号： C09K19/12 ,  C09K19/14 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34 ,  C09K19/42 ,  C09K19/46 ,  G02F1/13 ,  C09K19/06

CPC分类号： C09K19/46 ,  C09K19/3001 ,  C09K19/42

摘要： A liquid crystal composition is disclosed which comprises three components. The first component comprises at least one of the compounds of the following formulas (1-1) and (1-2). The second component comprises at least one of the compounds of the following formula (2). The third component comprises at least one of the compounds of the following formulas (3-1) to (3-4). ##STR1## Each symbol in formulas (1-1) to (3-4) is defined in the specification. The liquid crystal composition has low threshold voltage and high stability to hear and ultraviolet rays while satisfying general characteristics required for the STN display mode.

摘要翻译： 公开了一种包含三个组分的液晶组合物。 第一组分包含下式（1-1）和（1-2）中的至少一种化合物。 第二组分包含至少一种下式（2）的化合物。 第三组分包含下式（3-1）至（3-4）中的至少一种化合物。 公式（1-1）至（3-4）中的每个符号在说明书中定义。 液晶组合物在满足STN显示模式所需的一般特性的同时具有低的阈值电压和高的听觉和紫外线稳定性。

公开(公告)号：US5776366A

公开(公告)日：1998-07-07

申请号：US741720

申请日：1996-10-31

申请人： Yoshitaka Tomi ,  Tetsuya Matsushita ,  Fusayuki Takeshita ,  Katsuyuki Murashiro ,  Etsuo Nakagawa

发明人： Yoshitaka Tomi ,  Tetsuya Matsushita ,  Fusayuki Takeshita ,  Katsuyuki Murashiro ,  Etsuo Nakagawa

IPC分类号： G02F1/13 ,  C09K19/02 ,  C09K19/30 ,  C09K19/46 ,  C09K19/58 ,  C09K19/52

CPC分类号： C09K19/586 ,  C09K19/0208 ,  C09K19/3001 ,  C09K19/3003 ,  C09K19/46 ,  C09K2019/0444

摘要： A chiral, nematic liquid crystal composition suitable to STN-LCD, having superior steepness, rapid response and being able to prevent occurrence of high order and low order domain of LCD, which composition contains as a first component, at least one compound expressed by the formula (1) ##STR1## as a second component, at least one compound expressed by the formula (2) ##STR2## and as a third component, at least one compound of benzonitrile group, ##STR3## and further having a chiral dopant as a fourth component. In the above formulas, R.sup.1 and R.sup.2 each represent a linear alkyl group of 1 to 10 carbon atoms, A and B each represent trans-1,4-cyclohexylene or 1,4-phenylene, and R.sup.3 represents a linear alkyl group of 1 to 10 carbon atoms, or a group wherein an optional --CH.sub.2 -- or two or more not adjacent --CH.sub.2 --s present in the above group are replaced by --O-- or --CH=CH--; X.sup.1 and X.sup.2 each independently represent H or F; C represents --COO--, --C.sub.2 H.sub.4 --, trans-1,4-cyclohexylene or 1,4-phenylene; and n represents 0 or 1, and as a fourth component, a chiral dopant in a quantity in which a ratio (d/p) of the thickness (d.mu.m) of a liquid crystal layer in a liquid crystal cell to be filled with the liquid crystal composition to the helical pitch thereof (p.mu.m) is 0.03 to 2.0.

摘要翻译： 适用于STN-LCD的手性向列型液晶组合物，其具有优异的陡度，快速响应性并且能够防止LCD的高阶和低阶畴的发生，该组合物含有作为第一组分的至少一种化合物 式（1）作为第二组分的至少一种化合物作为第二组分，至少一种由式（2）表示的化合物（2）和作为第三组分的至少一种苄腈基化合物，＆lt; IMAGE＆gt; 3），并且还具有手性掺杂剂作为第四组分。 在上式中，R 1和R 2各自表示1〜10个碳原子的直链烷基，A和B各自表示反式-1,4-亚环己基或1,4-亚苯基，R3表示1〜 10个碳原子，或其中存在于上述基团中的任选的-CH 2 - 或两个或更多个不相邻的-CH 2 -S取代为-O-或-CH = CH-的基团; X1和X2各自独立地表示H或F; C表示-COO - ， - C 2 H 4 - ，反式-1,4-亚环己基或1,4-亚苯基; n表示0或1，作为第四成分的手性掺杂剂，其中液晶单元中待填充的液晶层的厚度（dμm）的比值（dμm） 液晶组合物的螺旋间距（μm）为0.03〜2.0。

公开(公告)号：US5645759A

公开(公告)日：1997-07-08

申请号：US524441

申请日：1995-09-06

申请人： Yoshitaka Tomi ,  Etsuo Nakagawa ,  Shinichi Sawada

发明人： Yoshitaka Tomi ,  Etsuo Nakagawa ,  Shinichi Sawada

IPC分类号： G02F1/13 ,  C09K19/20 ,  C09K19/30 ,  C09K19/46 ,  C09K19/12

CPC分类号： C09K19/46 ,  C09K19/3001

摘要： A liquid crystal composition having a low threshold voltage and a suitably large optical anisotropy, while retaining a high specific resistance value, is provided,which composition is composed of compounds expressed by the formulas (1), (2) and (4): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.4 each represent an alkyl group of 1 to 10C; n represents 0 or 1; A.sup.1, A.sup.2, A.sup.3 and A.sup.4 represent trans-1,4-cyclohexylene or 1,4-phenylene; Z.sup.1, Z.sup.3 and Z.sup.4 represent --C.sub.2 H.sub.4 -- or a single bond; and X.sup.1, X.sup.4 and X.sup.5 represent H or F,use of which composition can realize an active matrix type liquid crystal display element of a low drive voltage, a low power consumption and a high speed response.

摘要翻译： 提供具有低阈值电压和适当大的光学各向异性同时保持高电阻值的液晶组合物，该组成由式（1），（2）和（4）表示的化合物组成：本文 R1，R2和R4各自表示1〜10的烷基; n表示0或1; A1，A2，A3和A4表示反式-1,4-亚环己基或1,4-亚苯基; Z 1，Z 3和Z 4表示-C 2 H 4 - 或单键; X1，X4和X5表示H或F，使用哪种组合可以实现低驱动电压，低功耗和高速响应的有源矩阵型液晶显示元件。

公开(公告)号：US5618466A

公开(公告)日：1997-04-08

申请号：US523916

申请日：1995-09-06

申请人： Yoshitaka Tomi ,  Etsuo Nakagawa ,  Shinichi Sawada

发明人： Yoshitaka Tomi ,  Etsuo Nakagawa ,  Shinichi Sawada

IPC分类号： G02F1/13 ,  C09K19/18 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34 ,  C09K19/46 ,  C09K19/12

CPC分类号： C09K19/46

摘要： A liquid crystal composition used for a display element using TN (twisted nematic) mode or STN (super-twisted nematic) mode, having reduced threshold voltage and temperature dependency is provided,which composition is constituted by the following formulas (1) and (2): ##STR1## wherein R.sup.1 and R.sup.2 are an alkyl group of 1 to 10C; A.sup.1 and A.sup.2 each independently are 1,4-cyclohexylene or 1,4-penylene;n is 0 or 1; and X is H or F, andwhen the liquid crystal composition of the present invention is used, it is possible to realize a liquid crystal display element superior in low voltage drive, low power consumption and contrast.

摘要翻译： 提供了一种用于具有降低的阈值电压和温度依赖性的TN（扭曲向列）模式或STN（超扭曲向列）模式的显示元件的液晶组合物，其组成由下式（1）和（2 ）：其中R 1和R 2为1至10的烷基;（2）其中R 1和R 2为1至10的烷基; A1和A2各自独立地为1,4-亚环己基或1,4-亚苯基; n为0或1; X是H或F，当使用本发明的液晶组合物时，可以实现低电压驱动，低功耗和对比度优异的液晶显示元件。