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1. 发明授权

US6030545A Tercyclohexane, liquid-crystalline compound and liquid crystal composition comprising same 失效
标题翻译：三环己烷，液晶化合物和包含它们的液晶组合物
公开(公告)号：US6030545A
公开(公告)日：2000-02-29
申请号：US663925
申请日：1996-06-14
申请人： Shuichi Matsui , Kazutoshi Miyazawa , Takashi Kato , Yasuko Sekiguchi , Etsuo Nakagawa
发明人： Shuichi Matsui , Kazutoshi Miyazawa , Takashi Kato , Yasuko Sekiguchi , Etsuo Nakagawa
IPC分类号： C07C17/16 , C07C22/00 , C09K19/30 , C09K19/42 , C09K19/44 , C09K19/46
CPC分类号： C09K19/46 , C07C17/16 , C07C22/00 , C09K19/3001 , C09K19/3003 , C09K19/3028 , C09K19/42 , C09K19/44 , C09K2019/0448 , C09K2019/0451 , C09K2019/3006 , Y10T428/1036
摘要： The present invention provides a liquid-crystalline compound which has a reduced viscosity, a wide liquid crystal temperature range (high clearing point), a high chemical stability (extremely high specific resistance, high voltage holding ratio) and a high solubility with other liquid-crystalline compound(s) and preferably has a proper refractive index anisotropy. The present invention also provides a liquid crystal composition having excellent properties. The liquid-crystalline compound is represented by the following general formula (1): wherein R and R' each independently represents a C.sub.1-20 alkyl or halogenated alkyl group or a group obtained by replacing one or more --CH.sub.2 -- groups in the alkyl group by any of --O--, --S--, --CH.dbd.CH-- or --C.tbd.C--, provided that two or more --CH.sub.2 -- groups are not consecutively replaced by either --O-- or --S--; and Z.sub.1 and Z.sub.2 each independently represents a covalent bond or 1,2-ethylene group, provided that when both Z.sub.1 and Z.sub.2 are a covalent bond, R and R' are not straight-chain alkyl groups each having the same chain length.
摘要翻译：本发明提供一种液晶性化合物，其具有比较低的粘度，宽的液晶温度范围（高透明度），高化学稳定性（高电阻率，高电压保持率）和与其它液体 - 结晶化合物，并且优选具有适当的折射率各向异性。本发明还提供具有优异性能的液晶组合物。液晶化合物由以下通式（1）表示：其中R和R'各自独立地表示C1-20烷基或卤代烷基或通过置换烷基中的一个或多个-CH 2 - 基团而获得的基团通过-O - ， - S - ， - CH = CH-或-CB 3 C - 中的任何基团，条件是两个或更多个-CH 2 - 基团不被-O-或-S-连续替代; 并且Z 1和Z 2各自独立地表示共价键或1,2-亚乙基，条件是当Z1和Z2均为共价键时，R和R'不是具有相同链长的直链烷基。

2. 发明授权

US6013198A Liquid crystalline compound replaced by fluorine containing group, liquid crystal composition, and liquid crystal display device 失效
标题翻译：由含氟基团，液晶组合物和液晶显示装置取代的液晶化合物
公开(公告)号：US6013198A
公开(公告)日：2000-01-11
申请号：US921799
申请日：1997-09-02
申请人： Kazutoshi Miyazawa , Shuichi Matsui , Tomoyuki Kondo , Takashi Kato , Yasuko Sekiguchi , Etsuo Nakagawa
发明人： Kazutoshi Miyazawa , Shuichi Matsui , Tomoyuki Kondo , Takashi Kato , Yasuko Sekiguchi , Etsuo Nakagawa
IPC分类号： C07C43/225 , C09K19/30 , C07C19/08 , C07C22/00 , C09K19/12
CPC分类号： C09K19/3028 , C07C43/225 , C09K19/3001
摘要： Liquid crystalline compounds are disclosed which compounds are expressed by general formula (1) ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 10 carbon atoms, ring A represents 1,4-phenylene or 1,4-cyclohexylene, each of X.sub.1, X.sub.2, X.sub.3, and X.sub.4 independently represents hydrogen atom or fluorine atom, Y.sub.1 represents CF.sub.3 or OCF.sub.3, and each of m, n, and p is independently an integer of 1 or 0. The liquid crystalline compounds have a wide temperature. The liquid crystalline compounds have a wide temperature range of nematic phase, low viscosity, large positive .DELTA..epsilon., high chemical stability, high miscibility with other liquid crystalline compounds at low temperatures, small temperature dependency of viscosity and .DELTA..epsilon., extremely high specific resistance (high voltage holding ratio), and good UV stability, and are preferably used for TFT. Also, disclosed are liquid crystal compositions containing the liquid crystalline compounds mentioned above, and liquid crystal display devices using the liquid crystal composition.
摘要翻译：公开了液晶化合物，其中化合物由通式（1）表示，其中R 1表示具有1-10个碳原子的烷基，环A表示1,4-亚苯基或1,4-亚环己基，各自为X1，X2，X3 X 4独立地表示氢原子或氟原子，Y1表示CF 3或OCF 3，m，n和p各自独立地为1或0的整数。液晶化合物的温度宽。液晶化合物具有宽的向列相温度范围，低粘度，大的正DELTAε，高化学稳定性，低温下与其它液晶化合物的高混溶性，粘度和DELTAε的温度依赖性低，电阻率极高（高电压保持率），良好的紫外线稳定性，优选用于TFT。此外，还公开了含有上述液晶化合物的液晶组合物和使用该液晶组合物的液晶显示装置。

3. 发明授权

US6117360A Liquid crystal composition and liquid crystal display device 失效
标题翻译：液晶组成和液晶显示装置
公开(公告)号：US6117360A
公开(公告)日：2000-09-12
申请号：US698451
申请日：1996-08-15
申请人： Kazutoshi Miyazawa , Shuichi Matsui , Tomoyuki Kondo , Takashi Kato , Yasuko Sekiguchi , Etsuo Nakagawa
发明人： Kazutoshi Miyazawa , Shuichi Matsui , Tomoyuki Kondo , Takashi Kato , Yasuko Sekiguchi , Etsuo Nakagawa
IPC分类号： C07C17/12 , C07C17/26 , C07C17/35 , C07C17/354 , C07C25/18 , C07C43/225 , C07C45/00 , C09K19/30 , C09K19/12 , G02F1/133
CPC分类号： C07C17/12 , C07C17/263 , C07C17/35 , C07C17/354 , C07C25/18 , C07C43/225 , C07C45/004 , C09K19/3001 , C09K19/3028 , C07C2101/14
摘要： Liquid crystal compositions which have excellent miscibility at low temperatures, a properly large optical anisotropy, and a small threshold voltage while satisfying various characteristics required of liquid crystal compositions for active matrix mode liquid crystal display devices. The compositions contain, as a first component, at least one compound expressed by any one of formulas ##STR1## and as a second component, at least one compound expressed by any one of formulas ##STR2## wherein R represents a straight chain alkyl group having 1 to 10 carbon atoms, X represents CF.sub.3 or OCF.sub.3, X.sup.2 represents fluorine or OCF.sub.3, each Y represents, independently of each other, a hydrogen or fluorine atom, and m is 1 or 2.
摘要翻译：同时满足用于有源矩阵模式液晶显示装置的液晶组合物所需的各种特性的在低温下具有优异的混溶性，适当大的光学各向异性和小的阈值电压的液晶组合物。组合物含有作为第一组分的至少一种由下式表示的化合物和第二组分，至少一种由下式表示的化合物：其中R表示具有1-10个碳原子的直链烷基， X表示CF 3或OCF 3，X 2表示氟或OCF 3，Y各自独立地为氢或氟原子，m为1或2。

4. 发明授权

US06180027B2 Bisalkenyl derivatives, liquid crystalline compounds and liquid crystal compositions 失效
标题翻译：双链烯基衍生物，液晶化合物和液晶组合物
公开(公告)号：US06180027B2
公开(公告)日：2001-01-30
申请号：US09101990
申请日：1998-07-22
申请人： Takashi Kato , Shuichi Matsui , Kazutoshi Miyazawa , Yasuko Sekiguchi , Etsuo Nakagawa
发明人： Takashi Kato , Shuichi Matsui , Kazutoshi Miyazawa , Yasuko Sekiguchi , Etsuo Nakagawa
IPC分类号： C09K1930
CPC分类号： C09K19/3001 , C07F7/081 , C07F7/0812 , C07F7/0896 , C09K19/04
摘要： Liquid crystalline compounds expressed by the following formula (1), liquid crystal compositions thereof obtained by combination with specified liquid crystal compounds, and liquid crystal display devices using them, wherein, A1, A2, A3 and A4 denote each independently trans-1,4-cyclohexylene group etc.; Z1, Z2 and Z3 denote each independently —(CH2)2— etc.; Q1 and Q2 denote each independently H, F, Cl or Br; Q3 and Q4 denote each independently F, Cl or Br; 1, m and n denote each independently an integer of from 0 to 5; and p and q denote each independently an integer of 0 or 1.
摘要翻译：由下式（1）表示的液晶化合物，与特定液晶化合物组合得到的液晶组合物和使用它们的液晶显示装置，其中，A1，A2，A3和A4各自独立地表示反式-1,4 环己基等; Z1，Z2和Z3各自独立地表示 - （CH2）2-等; Q1和Q2各自独立地表示H，F，Cl或Br; Q3和Q4各自独立地表示F，Cl或Br; 1，m和n各自独立地表示0〜5的整数， p和q各自独立地表示0或1的整数。

5. 发明授权

US5948318A Liquid crystal composition and liquid crystal display device 失效
标题翻译：液晶组成和液晶显示装置
公开(公告)号：US5948318A
公开(公告)日：1999-09-07
申请号：US698456
申请日：1996-08-15
申请人： Kazutoshi Miyazawa , Shuichi Matsui , Tomoyuki Kondo , Takashi Kato , Yasuko Sekiguchi , Etsuo Nakagawa
发明人： Kazutoshi Miyazawa , Shuichi Matsui , Tomoyuki Kondo , Takashi Kato , Yasuko Sekiguchi , Etsuo Nakagawa
IPC分类号： C07C17/12 , C07C17/26 , C07C17/35 , C07C17/354 , C07C25/18 , C07C43/225 , C07C45/00 , C09K19/30 , C09K19/12 , C09K19/20 , G02F1/13
CPC分类号： C07C17/12 , C07C17/263 , C07C17/35 , C07C17/354 , C07C25/18 , C07C43/225 , C07C45/004 , C09K19/3001 , C09K19/3028 , C07C2101/14
摘要： Liquid crystal compositions which have a low threshold voltage, excellent miscibility at low temperatures, and a wide range of a nematic phase while satisfying various characteristics required of liquid crystal compositions for active matrix mode liquid crystal display devices. The compositions contain, as a first component, at least one compound expressed by any one of formulas ##STR1## and as a second component, at least one compound expressed by any one of formulas ##STR2## wherein each of the formulas, X represents CF.sub.3 or OCF.sub.3, each Y represents, independently of each other, a hydrogen or fluorine atom, m is 1 or 2, and n is an integer or 1 to 10.
摘要翻译：液晶组合物具有低阈值电压，低温下的良好混溶性和宽范围的向列相，同时满足用于有源矩阵模式液晶显示装置的液晶组合物所需的各种特性。所述组合物含有作为第一组分的至少一种由下式表示的化合物和作为第二组分的化合物，至少一种由下式表示的化合物，其中每个式X表示CF 3或OCF 3，每个Y表示彼此独立地为氢或氟原子，m为1或2，n为整数或1至10。

6. 发明授权

US5709820A Alkenyl cyclohexane derivatives and liquid crystal compositions 失效
标题翻译：烯基环己烷衍生物和液晶组合物
公开(公告)号：US5709820A
公开(公告)日：1998-01-20
申请号：US655965
申请日：1996-05-31
申请人： Takashi Kato , Shuichi Matsui , Kazutoshi Miyazawa , Yasuko Sekiguchi , Etsuo Nakagawa
发明人： Takashi Kato , Shuichi Matsui , Kazutoshi Miyazawa , Yasuko Sekiguchi , Etsuo Nakagawa
IPC分类号： C07C13/28 , C07C43/162 , C07C43/188 , C09K19/30 , C09K19/34 , C09K19/42 , C09K19/44 , C09K19/46 , C07D319/06
CPC分类号： C09K19/3402 , C07C13/28 , C07C43/162 , C07C43/188 , C09K19/3001 , C09K19/3003 , C09K19/3491 , C09K19/42 , C09K19/44 , C09K19/46 , C07C2101/14 , C09K2019/0444 , C09K2019/0448 , C09K2019/0451 , C09K2019/3422
摘要： Liquid crystalline alkenyl cyclohexane compounds of formula (I) having a nematic phase over a broad temperature range, a higher elastic constant ratio K.sub.33 /K.sub.11 and a lower viscosity, liquid crystal compositions comprising the above compounds and liquid crystal display elements using the liquid crystal compositions. ##STR1## wherein R.sub.1 is an alkyl group of 1-15 carbons, an alkenyl group of 2-15 carbons or an alkyl or alkenyl group in which at least one of non-adjacent methylene groups (--CH.sub.2 --) is replaced by --O--, --S--, --C.tbd.C-- or --COO--; R.sub.2 is a hydrogen atom or an alkyl group of 1-10 carbons; m is 0-5; when m is 2 or more, any one methylene group in --(CH.sub.2).sub.m -- may be replaced by --O--; and the rings A.sub.1, A.sub.2 and A.sub.3 are independently a 1,4-cyclohexylene, a cyclohexene-1,4-diyl or a 6-membered ring group, one or two --CH.sub.2 -- groups in said rings optionally replaced by --O-- or --S--.
摘要翻译：在宽温度范围内具有向列相的液晶烯基环己烷化合物，具有较高弹性常数比K33 / K11和较低粘度的包含上述化合物的液晶组合物和使用该液晶组合物的液晶显示元件。（I）其中R1是1-15个碳的烷基，2-15个碳的烯基或其中至少一个不相邻的亚甲基（-CH 2 - ）被取代的烷基或链烯基 -O - ， - S - ， - C 3BOND C或-COO-; R2是氢原子或1-10个碳原子的烷基; m为0-5; 当m为2以上时， - （CH 2）m - 中的任何一个亚甲基可以被-O-取代; 环A1，A2和A3独立地为1,4-亚环己基，环己烯-1,4-二基或6元环基团，所述环中的一个或两个-CH 2 - 基团任选地被-O-或 -S-。

7. 发明授权

US6143198A Liquid crystalline compounds having exo-methylene site and liquid crystal compositions comprising the same 失效
标题翻译：具有外亚甲基位点的液晶化合物和包含其的液晶组合物
公开(公告)号：US6143198A
公开(公告)日：2000-11-07
申请号：US952681
申请日：1997-11-25
申请人： Kazutoshi Miyazawa , Shuichi Matsui , Yasuko Sekiguchi , Etsuo Nakagawa
发明人： Kazutoshi Miyazawa , Shuichi Matsui , Yasuko Sekiguchi , Etsuo Nakagawa
IPC分类号： C07C13/28 , C07C15/52 , C07C15/54 , C07C22/02 , C07C22/04 , C07C22/08 , C07C25/24 , C07C43/215 , C07C43/225 , C07C69/75 , C07C69/753 , C07C69/76 , C07C69/78 , C07C255/50 , C07C255/55 , C07D213/06 , C07D213/16 , C07D213/65 , C07D239/26 , C07D239/28 , C07D319/06 , C09K19/04 , C09K19/06 , C09K19/18 , C09K19/20 , C09K19/30 , C09K19/34 , C09K19/42 , C09K19/44 , C09K19/46 , G02F1/13 , C09K19/12 , C09K19/32
CPC分类号： C07D239/26 , C07C13/28 , C07C255/50 , C07C255/55 , C07C43/215 , C07C43/225 , C07C69/75 , C07C69/753 , C07C69/76 , C09K19/04 , C09K19/3001 , C09K19/3003 , C09K19/3028 , C09K19/42 , C09K19/44 , C09K19/46 , C07C2101/14 , C09K2019/0444 , C09K2019/0448 , C09K2019/0451
摘要： A liquid crystalline compound represented by the general formula (1) ##STR1## wherein R.sub.1 represents an alkyl or alkoxy group having 1 to 10 carbon atoms, a cyano group, a halogen atom, or an alkyl or alkoxy halide group having 1 to 4 carbon atoms; R.sub.2 represents an alkyl group having 1 to 10 carbon atoms; rings A.sub.1, A.sub.2, A.sub.3, and A.sub.4 each independently represent a 1,4-phenylene or 1,4-cyclohexylene group; Z.sub.1, Z.sub.2, and Z.sub.3 each independently represent a covalint bond, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C-- or --COO--; 1 and m are 0 pr 1; and n is 0 to 10.
摘要翻译： PCT No.PCT / JP96 / 01397 Sec。 371日期：1997年11月25日 102（e）日期1997年11月25日PCT提交1996年5月24日PCT公布。 WO96 / 37451 PCT公开号日期：1996年11月28日由通式（1）表示的液晶化合物，其中R1表示碳原子数1〜10的烷基或烷氧基，氰基，卤素原子或烷基或烷氧基卤基， 4个碳原子; R2表示碳原子数1〜10的烷基。环A1，A2，A3和A4各自独立地表示1,4-亚苯基或1,4-亚环己基; Z 1，Z 2和Z 3各自独立地表示共价键，-CH 2 CH 2 - ， - CH = CH - ， - C 3BOND C或-COO-; 1和m为0 pr 1; n为0〜10。

8. 发明授权

US06337034B1 Vinylene compounds and liquid-crystal composition 失效
标题翻译：维尼尼亚化合物和液晶组成
公开(公告)号：US06337034B1
公开(公告)日：2002-01-08
申请号：US09125685
申请日：1998-08-24
申请人： Tomoyuki Kondo , Shuichi Matsui , Kazutoshi Miyazawa , Yasuko Sekiguchi , Etsuo Nakagawa
发明人： Tomoyuki Kondo , Shuichi Matsui , Kazutoshi Miyazawa , Yasuko Sekiguchi , Etsuo Nakagawa
IPC分类号： C09K1930
CPC分类号： C07D213/79 , C07C69/75 , C07C69/753 , C07C69/76 , C07D213/80 , C07D239/28 , C07D239/34 , C07D319/06 , C09K19/04 , C09K19/3001 , C09K19/3068
摘要： Liquid crystalline compounds which have a wide temperature range of liquid crystal phase, low viscosity, and improved threshold voltage; liquid crystal compositions; and liquid crystal display devices comprising the composition can be provided; and the liquid crystalline compounds are expressed by the general formula (1) Ra—A1—Z1—A2—Z2—A3—(Z3—A4)m—Rb (1) wherein Ra represents an alkyl group having 1 to 20 carbon atoms one or more —CH2— in which alkyl group may be replaced by —O— or the like, and one or more hydrogen atoms in which alkyl group may be replaced by a halogen atom; Rb represents Ra, a halogen atom, or cyano group; A1, A2, A3, and A4 independently represent a divalent ring group; Z1, Z2, and Z3 independently represent an alkenylene group having 2 to 4 carbon atoms, —COO—, a covalent bond, or the like provided that at least one of Z1 to Z3 represents an alkenylene group having 2 to 4 carbon atoms, and at least one of Z1 to Z3 represents —COO— or —OCO—; and m is 0 or 1.
摘要翻译：具有液晶相温度范围宽，粘度低，阈值电压提高的液晶化合物; 液晶组合物; 并且可以提供包含该组合物的液晶显示装置; 并且液晶化合物由通式（1）表示，其中R a表示具有1至20个碳原子的烷基，一个或多个-CH 2 - ，其中烷基可以被-O-取代，以及一个或更多的氢原子，其中烷基可被卤素原子取代; Rb表示Ra，卤素原子或氰基; A1，A2，A3和A4独立地表示二价环基团; Z 1，Z 2和Z 3独立地表示具有2〜4个碳原子的亚烯基，-COO-，共价键等，条件是Z1至Z3中的至少一个表示具有2至4个碳原子的亚烯基， Z1至Z3中的至少一个表示-COO-或-OCO-; m为0或1。

9. 发明授权

US06319570B1 Liquid crystalline compound, liquid crystal composition comprising the liquid crystal-line compound, and liquid crystal display device using the liquid crystal composition 有权
标题翻译：液晶化合物，包含液晶线化合物的液晶组合物和使用该液晶组合物的液晶显示装置
公开(公告)号：US06319570B1
公开(公告)日：2001-11-20
申请号：US09597280
申请日：2000-06-19
申请人： Tugumiti Andou , Shuichi Matsui , Kazutoshi Miyazawa , Hiroyuki Takeuchi , Yasuyuki Koizumi , Yasuko Sekiguchi , Etsuo Nakagawa , Fusayuki Takeshita
发明人： Tugumiti Andou , Shuichi Matsui , Kazutoshi Miyazawa , Hiroyuki Takeuchi , Yasuyuki Koizumi , Yasuko Sekiguchi , Etsuo Nakagawa , Fusayuki Takeshita
IPC分类号： C09K1934
CPC分类号： C07D239/26 , C07C43/192 , C07C43/225 , C07C69/753 , C07C69/76 , C07D319/06 , C09K19/04 , C09K19/0403 , C09K19/3001 , C09K19/3066 , C09K19/3068 , C09K19/42 , C09K19/44 , C09K19/46 , C09K2019/0407 , C09K2019/0448 , C09K2019/0451 , C09K2019/3027 , Y10T428/10
摘要： The invention is to provide liquid crystalline compounds which have a low viscosity, high negative dielectric anisotropy, high resistivity, and high voltage holding ratio, and are stable against heat and ultraviolet light; to provide liquid crystal compositions comprising the liquid crystalline compound; and to provide liquid crystal display devices using the liquid crystal composition therein; the liquid crystalline compound is expressed by the general formula (1) wherein R1 and Y1 represent an alkyl group having 1 to 20 carbon atoms; X1, X2, and X3 independently represent single bond, 1,2-ethylene group, vinylene group, —COO—, —CF2O—, or —OCF2—; ring A1, ring A2, ring A3, and ring A4 independently represent trans-1,4-cycloliexylene, or 1,4-phenylene hydrogen atom on the ring may be replaced by fluorine atom or chlorine atom provided that at least one of ring A2, ring A3, and ring A4 represents 2,3-difluoro-1,4-phenylene; m and n are 0 or 1, and each element which constitutes this compound may be replaced by its isotope.
摘要翻译：本发明提供具有低粘度，高负电介质各向异性，高电阻率和高电压保持率的液晶化合物，并且对于热和紫外光是稳定的; 以提供包含液晶化合物的液晶组合物; 并提供使用其中的液晶组合物的液晶显示装置;液晶化合物由通式（1）表示，其中R 1和Y 1表示具有1至20个碳原子的烷基; X1，X2和X3独立地表示单键，1,2-亚乙基，亚乙烯基，-COO-，-CF2O-或-OCF2-; 环A1，环A2，环A3和环A4独立地表示反式-1,4-亚噻二环，或者环上的1,4-亚苯基氢原子可以被氟原子或氯原子代替，条件是环A2中的至少一个环A3，环A4表示2,3-二氟-1,4-亚苯基; m和n为0或1，并且构成该化合物的每个元素可以被其同位素代替。

10. 发明授权

US5833879A Liquid crystalline alkynyltolan compound, liquid crystal composition and liquid crystal display element 失效
标题翻译：液晶炔基聚酰胺化合物，液晶组合物和液晶显示元件
公开(公告)号：US5833879A
公开(公告)日：1998-11-10
申请号：US600278
申请日：1996-02-12
申请人： Kazutoshi Miyazawa , Shuichi Matsui , Yasuko Sekiguchi , Etsuo Nakagawa
发明人： Kazutoshi Miyazawa , Shuichi Matsui , Yasuko Sekiguchi , Etsuo Nakagawa
IPC分类号： C07C15/54 , C07C43/188 , C07C43/215 , C09K19/06 , C09K19/12 , C09K19/18 , C09K19/30 , C09K19/42 , C09K19/44 , C09K19/46 , C07C22/04 , C09K19/52
CPC分类号： C07C43/215 , C07C15/54 , C07C43/188 , C09K19/06 , C09K19/12 , C09K19/18 , C09K19/3001 , C09K19/3059 , C09K19/42 , C09K19/44 , C09K19/46 , C07C2101/14 , C09K2019/0448 , C09K2019/0451 , Y10T428/10
摘要： A novel liquid crystalline compound having a sufficiently large .DELTA.n, a superior, low temperature compatibility with other liquid crystals and a chemical stability; a liquid crystal composition containing the above compound; and a display element using the above liquid crystal composition are provided, which liquid crystalline compound is expressed by the formula (1): ##STR1## wherein R.sub.1 is an alkyl group or alkoxy group of 1 to 10C, cyano group or a halogen atom; R.sub.2 is an alkyl group of 1 to 5C wherein one methylene group (--CH.sub.2 --) may be replaced by oxygen atom; X.sub.1 and X.sub.2 each independently are hydrogen atom or a halogen atom; A and B each independently are single bond, 1,4-phenylene ring or 1,4-cyclohexylene ring which may be substituted by halogen atom may be; and p is 1 to 5.
摘要翻译：具有足够大的DELTA n，与其它液晶具有优异的低温相容性和化学稳定性的新型液晶化合物; 含有上述化合物的液晶组合物; 并且提供使用上述液晶组合物的显示元件，该液晶化合物由式（1）表示：其中R1是1-10个碳原子的烷基或烷氧基，氰基或卤素原子; R2是1〜5的烷基，其中一个亚甲基（-CH 2 - ）可以被氧原子取代; X1和X2各自独立地为氢原子或卤素原子; A和B各自独立地为单键，可以被卤素原子取代的1,4-亚苯基环或1,4-亚环己基环; p为1〜5。

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