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    Liquid crystal composition and liquid crystal display device
    1.
    发明授权
    Liquid crystal composition and liquid crystal display device 失效
    液晶组成和液晶显示装置

    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

    IPC分类号： C09K19/46 ,  C09K19/50 ,  C09K19/52 ,  C09K19/30 ,  C09K19/34

    CPC分类号： C09K19/50 ,  C09K19/46

    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（X​​b）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。

    Liquid crystal composition
    2.
    发明授权
    Liquid crystal composition 失效
    液晶组成

    公开(公告)号：US5683624A

    公开(公告)日：1997-11-04

    申请号：US573141

    申请日：1995-12-15

    申请人： Yasuko Sekiguchi ,  Etsuo Nakagawa ,  Toyoshiro Isoyama ,  Tetsuya Matsushita

    发明人： Yasuko Sekiguchi ,  Etsuo Nakagawa ,  Toyoshiro Isoyama ,  Tetsuya Matsushita

    IPC分类号： C09K19/30 ,  C09K19/42 ,  C09K19/46 ,  C09K19/34 ,  C09K19/12

    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。

    Liquid crystal composition and liquid crystal display device
    3.
    发明授权
    Liquid crystal composition and liquid crystal display device 失效
    液晶组成和液晶显示装置

    公开(公告)号：US5837161A

    公开(公告)日：1998-11-17

    申请号：US822688

    申请日：1997-03-24

    申请人： Yasuko Sekiguchi ,  Katsuyuki Murashiro ,  Fusayuki Takeshita ,  Tetsuya Matsushita ,  Etsuo Nakagawa

    发明人： Yasuko Sekiguchi ,  Katsuyuki Murashiro ,  Fusayuki Takeshita ,  Tetsuya Matsushita ,  Etsuo Nakagawa

    IPC分类号： G02F1/13 ,  C09K19/30 ,  C09K19/34 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K19/12

    CPC分类号： C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0448 ,  C09K2019/0451 ,  Y10T428/1005

    摘要： Liquid crystal compositions having a small value of .gamma. (V.sub.10 /V.sub.90) and a small .tau. (fast response speed) in order to cope especially with high speed response, while satisfying various characteristics required of STN display mode. These compositions comprise at least one compound expressed by formula (I) as a first component; expressed by any one of formulas (II-a) to (II-d) as a second component; and expressed by formula (III) or (IV) as a third component; and as a fourth component, a chiral component in the amount necessary for maintaining the ratio d/P of the cell thickness d (.mu.m) to the pitch length of twist P (.mu.m) in the range of 0.4 to 0.6 when the liquid crystal composition is used for liquid crystal display devices. ##STR1## wherein R.sup.1 to R.sup.9 represent an alkyl group having 1 to 10 carbon atoms; Z.sup.0 to Z.sup.4 represent, for example, --CH.sub.2 CH.sub.2 --; A.sup.1 to A.sup.4, B, C, E, and G independently represent, for example, 1,4-cyclohexylene or 1,4-phenylene; D represents 1,4-cyclohexylene or 1,3-pyrimidine-2,5-diyl; Q.sup.1 represents H or F; and q and m are independently 0 or 1.

    摘要翻译： 在满足STN显示模式所要求的各种特性的同时，为了特别应对高速响应，具有较小的伽马值（V10 / V90）和小的tau（快速响应速度）的液晶组合物。 这些组合物包含至少一种由式（I）表示的化合物作为第一组分; 由式（II-a）至（II-d）中的任一个表示作为第二组分; 并由式（III）或（IV）表示为第三组分; 作为第四成分，将液体厚度d（μm）的比d / P与捻数P（μm）的间距长度保持在0.4〜0.6的范围内所需的量的手性成分， 液晶组合物用于液晶显示装置。 （II-c）（II-c）（II-c）（II-c）（II-d）R6（B）Z2（C）R7（Ⅲ） R8（D）Z3（E）Z4（G）R9（IV）其中R1至R9表示具有1-10个碳原子的烷基; Z 0〜Z 4表示例如-CH 2 CH 2 - ; A1至A4，B，C，E和G独立地表示例如1,4-亚环己基或1,4-亚苯基; D代表1,4-亚环己基或1,3-嘧啶-2,5-二基; Q1表示H或F; q和m独立地为0或1。

    Alkenyl compound, liquid crystal composition, and liquid crystal display device
    5.
    发明授权
    Alkenyl compound, liquid crystal composition, and liquid crystal display device 失效
    烯基化合物，液晶组合物和液晶显示装置

    公开(公告)号：US06231934B1

    公开(公告)日：2001-05-15

    申请号：US09155348

    申请日：1998-09-28

    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： C09K1934

    CPC分类号： C07C43/225 ,  C07C43/176 ,  C07C43/188 ,  C07C69/753 ,  C07C69/76 ,  C09K19/04 ,  C09K19/16 ,  C09K19/3001 ,  C09K19/3048 ,  C09K19/3059 ,  C09K19/3402 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0448 ,  C09K2019/0451 ,  C09K2019/3422 ,  Y10T428/10

    摘要： The liquid crystalline compound is expressed by the general formula (1) Ra-A1-Z1-A2-Z2-A3-Z3-A4-Rb   (1) wherein Ra represents an alkenyl group having 2 to 20 carbon atoms or an alkyl group having 1 to 20 carbon atoms any methylene group (—CH2—) in the alkenylene or alkyl group may be replaced by —O—, —S—, —CO—, —CH═CH—, or —C≡C—, but in no case —O— and/or —S— continues, and any hydrogen atom in Ra may be replaced by a halogen atom; Rb represents Ra, a halogen atom, or cyano group provided that at least one of Ra and Rb represents a group having double bond; A1, A2, A3, and A4 independently represent trans-1,4-cyclohexylene group, 1,4-phenylene group any hydrogen atom on the ring may be replaced by fluorine atom or cyano group, cyclohexenediyl group, pyridine-2,5-diyl group, pyrimidine-2,5-diyl group, or 1,3-dioxane-2,5-diyl group; and Z1, Z2, and Z3 independently represent an alkenylene group having 2 to 4 carbon atoms, —(CH2)2—, —COO—, —OCO—, —C≡C—, —CH2O—, —OCH2—, or single bond any hydrogen atom in the groups may be replaced by a halogen atom provided that at least one of Z1, Z2, and Z3 represents an alkenylene group having 2 to 4 carbon atoms.

    摘要翻译： 液晶化合物由通式（1）表示，其中R a表示具有2至20个碳原子的烯基或具有1至20个碳原子的烷基，亚烯基或烷基中的任何亚甲基（-CH 2 - ）可以 被-O - ， - S - ， - CO - ， - CH = CH-或-C = C-取代，但不限于-O-和/或-S-，Ra中的任何氢原子 被卤素原子取代; Rb表示Ra，卤素原子或氰基，Ra和Rb中的至少一个表示具有双键的基团; A1，A2，A3和A4独立地表示反式-1,4-亚环己基，1,4-亚苯基，环上的任何氢原子可以被氟原子或氰基取代，环己烯二基，吡啶-2,5- 二基，嘧啶-2,5-二基或1,3-二恶烷-2,5-二基; 且Z 1，Z 2和Z 3独立地表示具有2至4个碳原子的亚烯基， - （CH 2）2 - ， - COO - ， - OCO - ， - C = C - ， - CH 2 O - ， - OCH 2 - 键中的任何氢原子可以被卤素原子代替，条件是Z 1，Z 2和Z 3中的至少一个表示具有2至4个碳原子的亚烯基。

    Bisalkenyl derivatives, liquid crystalline compounds and liquid crystal compositions
    6.
    发明授权
    Bisalkenyl derivatives, liquid crystalline compounds and liquid crystal compositions 失效
    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。

    Carboxylate derivatives comprising an ether group and liquid crystal composition comprising the same
    9.
    发明授权
    Carboxylate derivatives comprising an ether group and liquid crystal composition comprising the same 失效
    包含醚基的羧酸酯衍生物和包含其的液晶组合物

    公开(公告)号：US6149990A

    公开(公告)日：2000-11-21

    申请号：US117706

    申请日：1998-08-04

    申请人： Yoshiji Egami ,  Masatoshi Fukushima ,  Yasuko Sekiguchi ,  Makoto Tanimoto ,  Etsuo Nakagawa

    发明人： Yoshiji Egami ,  Masatoshi Fukushima ,  Yasuko Sekiguchi ,  Makoto Tanimoto ,  Etsuo Nakagawa

    IPC分类号： C07C69/757 ,  C07C69/773 ,  C07C69/92 ,  C07C69/94 ,  C09K19/30 ,  C09K19/42 ,  C07C25/13 ,  C07C69/75 ,  C07C69/76 ,  C09K19/20

    CPC分类号： C07C69/92 ,  C07C69/757 ,  C07C69/94 ,  C09K19/3001 ,  C09K19/3068 ,  C09K19/42 ,  Y10T428/10

    摘要： A compound represented by the following general formula (I), a liquid crystal composition comprising the same, and a liquid crystal element using this liquid crystal composition. ##STR1## (wherein B.sub.1 and B.sub.2 represent independently a trans-1,4-cyclohexylene group or a 1,4-phenylene group wherein at least one hydrogen atom on the six-membered ring is optionally substituted by a halogen atom, Y represents a halogen-substituted alkyl group having 1 to 3 carbon atoms, a halogen-substituted alkoxy group having 1 to 3 carbon atoms, a cyano group, a fluorine atom or a chlorine atom, X represents a fluorine atom, a chlorine atom or a hydrogen atom, R.sub.1 represents an alkyl group having 1 to 10 carbon atoms or an alkoxy group having 1 to 10 carbon atoms, n and m represent independently 1 or 2 and p represents 0 or 1.)The compound of the present invention exhibits a large dielectric anisotropy, low threshold voltage, and favorable temperature-dependency of threshold voltage, as well as a favorable miscibility with a known liquid crystal compound, and therefore a liquid crystal composition comprising the compound can provide low voltage-operable liquid crystal display elements.

    摘要翻译： 由以下通式（I）表示的化合物，包含该化合物的液晶组合物和使用该液晶组合物的液晶元件。 （其中B1和B2独立地表示反式-1,4-亚环己基或1,4-亚苯基，其中六元环上的至少一个氢原子任选被卤素原子取代，Y表示卤素取代的 具有1至3个碳原子的烷基，具有1至3个碳原子的卤素取代的烷氧基，氰基，氟原子或氯原子，X表示氟原子，氯原子或氢原子，R1表示 具有1-10个碳原子的烷基或具有1-10个碳原子的烷氧基，n和m独立地表示1或2，p表示0或1.）本发明的化合物具有大的介电各向异性，低阈值 电压和阈值电压的良好的温度依赖性，以及与已知的液晶化合物的良好的混溶性，因此包含该化合物的液晶组合物可以提供低电压可操作的液晶显示元件。