Dioxane type liquid crystal substance
    1.
    发明授权
    Dioxane type liquid crystal substance 失效
    二恶烷型液晶物质

    公开(公告)号:US5482651A

    公开(公告)日:1996-01-09

    申请号:US25571

    申请日:1993-03-03

    摘要: An antiferroelectric liquid crystal substance represented by the following general formula (1) ##STR1## wherein R represents a straight-chain alkyl group of 6-10 carbon atoms; X represents ##STR2## when X is ##STR3## Y is any of CH.sub.3, CF.sub.3 and C.sub.2 H.sub.5, L is 0 or an integer of 5 to 8, m is 0 or 1, and n is an integer of 1 to 10; when X is ##STR4## Y is any of CH.sub.3, CF.sub.3 and C.sub.2 H.sub.5, and (1) when Y is CH.sub.3, L is 0 or an integer of 5 to 8, m is 0 or 1, and n is an integer of 1 to 10, (2) when Y is CF.sub.3, L is an integer of 5 to 8, m is 1, and n is an integer of 1 to 10 and (3) when Y is C.sub.2 H.sub.5, L is 0, m is 0, and n is an integer of 4-10.

    摘要翻译: 由下列通式(1)表示的反铁电液晶物质(1)其中R表示6-10个碳原子的直链烷基; X表示,Y表示CH3,CF3,C2H5,L为0或5〜8的整数,m为0或1,n为1〜10的整数。 当X为Y 3时,L为0或5〜8的整数,m为0或1,n为1〜10的整数,(2)Y为CF 3时,L为5〜 8,m为1,n为1〜10的整数,(3)Y为C2H5时,L为0,m为0,n为4-10的整数。

    Fluorine-substituted compounds and ferrielectric liquid-crystal composition containing the same
    2.
    发明授权
    Fluorine-substituted compounds and ferrielectric liquid-crystal composition containing the same 失效
    氟取代的化合物和含有它们的电介质液晶组合物

    公开(公告)号:US06258296B1

    公开(公告)日:2001-07-10

    申请号:US09462988

    申请日:2000-01-19

    IPC分类号: C09K1920

    摘要: A fluorine-substituted compound of the following general formula (1) or (2), and a ferrielectric liquid crystal composition comprising the above compound and a specific ferrielectric liquid crystal compound, wherein, in the formula (1), each of X1 and X2 is a hydrogen atom, or one of them is a hydrogen atom and the other is a fluorine atom, p is an integer of 0 to 3 and q is an integer of 1 to 3, and in the formula (2), each of X1 and x2 is a hydrogen atom, or one of them is a hydrogen atom and the other is a fluorine atom, p is an integer of 1 to 3 and q is an integer of 1 to 3.

    摘要翻译: 下述通式(1)或(2)的氟取代的化合物,以及包含上述化合物和特定的电介质液晶化合物的电介质液晶组合物,其中,在式(1)中,X 1和X 2 是氢原子,其中一个为氢原子,另一个为氟原子,p为0〜3的整数,q为1〜3的整数,式(2)中,X 1 x2为氢原子,其中一个为氢原子,另一个为氟原子,p为1〜3的整数,q为1〜3的整数。

    Racemic compound and anti-ferroelectric liquid crystal composition
    3.
    发明授权
    Racemic compound and anti-ferroelectric liquid crystal composition 失效
    外消旋化合物和反铁电液晶组合物

    公开(公告)号:US5951914A

    公开(公告)日:1999-09-14

    申请号:US923287

    申请日:1997-09-04

    IPC分类号: C07C69/90 C09K19/20 C09K19/12

    摘要: A racemic compound of the formula (1) ##STR1## and an anti-ferroelectric liquid crystal composition consisting essentially of said racemic compound and one anti-ferroelectric liquid crystal compound of the formula (2) or a mixture of two or more compounds selected from anti-ferroelectric liquid crystal compounds of the formula (2), ##STR2## said composition having excellent steepness of threshold, having an anti-ferroelectric phase in a broad temperature range and having the performance of a high response speed and a high contrast.

    摘要翻译: 式(1)的外消旋化合物和基本上由所述外消旋化合物和式(2)的一种反铁电液晶化合物或两种或更多种选自抗铁电体的化合物的混合物组成的反铁电液晶组合物 式(2)的液晶化合物,所述组合物具有优异的阈值陡度,在宽温度范围内具有抗铁电相,具有高响应速度和高对比度的性能。

    Liquid crystal compound having ferrielectric phase and liquid crystal
composition
    4.
    发明授权
    Liquid crystal compound having ferrielectric phase and liquid crystal composition 失效
    具有电介质相和液晶组成的液晶化合物

    公开(公告)号:US5728864A

    公开(公告)日:1998-03-17

    申请号:US631092

    申请日:1996-04-12

    摘要: A liquid crystal compound of the formula (1) ##STR1## wherein R is a linear alkyl group having 6 to 12 carbon atoms, both X and Y are hydrogen atoms or one of X and Y is a fluorine atom and the other is a hydrogen atom, A is --CF.sub.3 or --C.sub.2 F.sub.5, m is an integer of 2 to 4, n is an integer of 2 to 4, and C* is an asymmetric carbon, having a ferrielectric phase in its phase sequence, or a ferrielectric liquid crystal composition containing the liquid crystal compound of the formula (1) having a ferrielectric phase, may be injected between substrates provided with nonlinear active elements, such as thin film transistors or diodes formed on each pixel, to form an active matrix liquid crystal display device.

    摘要翻译: 式(1)的液晶化合物其中R为碳原子数为6〜12的直链烷基,X和Y均为氢原子,X和Y中的一个为氟原子,另一方为 是氢原子,A是-CF 3或-C 2 F 5,m是2〜4的整数,n是2〜4的整数,C *是其相序中具有电介质相的不对称碳,或 包含具有电介质相的式(1)的液晶化合物的电介质液晶组合物可以注入到设置有非线性有源元件的衬底之间,诸如形成在每个像素上的薄膜晶体管或二极管,以形成有源矩阵液晶 显示设备。

    Swallow-tail-shaped liquid crystal compound
    5.
    发明授权
    Swallow-tail-shaped liquid crystal compound 失效
    燕尾形液晶复合物

    公开(公告)号:US5976409A

    公开(公告)日:1999-11-02

    申请号:US99772

    申请日:1998-06-19

    摘要: A swallow-tail-shaped liquid crystal compound of the following general formula (1), ##STR1## wherein A is --O--, --COO-- or a single bond (--), m is an integer of 4 to 12, and n is an integer of 2 to 4.The above swallow-tail-shaped liquid crystal compound of the present invention is a novel achiral anti-ferroelectric liquid crystal and can be converted to an optically active anti-ferroelectric liquid crystal by mixing it with an optically active compound as a chiral dopant.

    摘要翻译: 下述通式(1)的燕尾型液晶化合物,其中A为-O-,-COO-或单键( - ),m为4〜12的整数,n为整数 本发明的燕尾型液晶化合物是新型的非手性反铁电液晶,可以通过将光学活性化合物与光学活性化合物混合而转化为光学活性的反铁电液晶 手性掺杂剂。

    Liquid crystal compounds and liquid crystal display devices
    6.
    发明授权
    Liquid crystal compounds and liquid crystal display devices 失效
    液晶化合物和液晶显示装置

    公开(公告)号:US5275757A

    公开(公告)日:1994-01-04

    申请号:US985319

    申请日:1992-12-04

    摘要: Novel anti-ferroelectric liquid crystal compounds represented by the following general formula (I) and a liquid crystal display element wherein such a compound is used. ##STR1## Ph represents a phenylene group, R represents a straight-chain alkyl group having 6 to 10 carbon atoms,X represents an oxygen atom or a single bond provided that when X is an oxygen atom, L is an integer of 5 to 8, m is 1 and n is an integer of 1 to 7, or L and m are zero (0) and n is an integer of 6 to 8, and when X is a single bond,L is an integer of 5 to 8, m is 1 and n is an integer of 1 to 7, andC* represents an asymmetric carbon atom.

    摘要翻译: 由以下通式(I)表示的新型反铁电液晶化合物和使用这种化合物的液晶显示元件。 (*化学结构*)-Ph-COO-C * H(CF 3)(CH 2)L(O)m C n H 2n + 1 Ph表示亚苯基,R表示碳原子数6〜10的直链烷基,X表示 氧原子或单键,条件是当X为氧原子时,L为5至8的整数,m为1,n为1至7的整数,或L和m为零(0),n为 6〜8的整数,X为单键时,L为5〜8的整数,m为1,n为1〜7的整数,C *为不对称碳原子。

    Two-rings-containing phenyl ester compound and anti-perroelectric liquid
crystal composition containing the same
    8.
    发明授权
    Two-rings-containing phenyl ester compound and anti-perroelectric liquid crystal composition containing the same 失效
    含有双环的苯基酯化合物和含有它们的防腐电液晶组合物

    公开(公告)号:US6018070A

    公开(公告)日:2000-01-25

    申请号:US839342

    申请日:1997-04-18

    摘要: A two-rings-containing phenyl ester compound of the following general formula (1), ##STR1## wherein R.sup.1 is a linear alkyl group having 5 to 12 carbon atoms, R.sup.2 is a linear alkyl group having 1 to 15 carbon atoms, X.sup.1 and X.sup.2 are both hydrogen atoms or one of X.sup.1 and X.sup.2 is a fluorine atom and the other is a hydrogen atom, Y.sup.1 and Y.sup.2 are both hydrogen atoms or one of Y.sup.1 and Y.sup.2 is a fluorine atom and the other is a hydrogen atom, and A.sup.1 is a hydrogen atom, --CH.sub.3 or --CF.sub.3, provided that when A.sup.1 is a hydrogen atom or --CH.sub.3, p is 0 and that when A.sup.1 is --CF.sub.3, p is 1 and q is an integer of 5 to 8, and an anti-ferroelectric liquid crystal composition containing at least one of two-rings-containing phenyl ester compounds of the above general formula (1) in claim 1 and either an anti-ferroelectric liquid crystal compound or a mixture of anti-ferroelectric liquid crystal compounds.

    摘要翻译: 含有下述通式(1)的含双环的苯基酯化合物,其中,R 1为碳原子数5〜12的直链烷基,R 2为碳原子数1〜15的直链烷基,X1和X2均为 氢原子或X1和X2之一是氟原子,另一个是氢原子,Y1和Y2都是氢原子,Y1和Y2中的一个是氟原子,另一个是氢原子,而A1是氢原子 原子,-CH 3或-CF 3,条件是当A 1为氢原子或-CH 3时,p为0,当A 1为-CF 3时,p为1,q为5〜8的整数,反铁电性液体 含有权利要求1中的上述通式(1)的含两环的苯基酯化合物中的至少一种的水晶组合物,以及抗铁电液晶化合物或抗铁电液晶化合物的混合物。

    Liquid crystal compound and liquid crystal display device
    9.
    发明授权
    Liquid crystal compound and liquid crystal display device 失效
    液晶复合液晶显示装置

    公开(公告)号:US5364560A

    公开(公告)日:1994-11-15

    申请号:US827631

    申请日:1992-01-29

    摘要: An antiferroelectric liquid crystal compound which is a compound represented by ##STR1## wherein R denotes a linear aliphatic alkyl group having 6 to 14 carbon atoms; A denotes a single bond or an oxygen atom; X and Y independently denote a hydrogen atom or a fluorine atom but they are not hydrogen atoms at the same time; h and i are independently 1 or 2; m is an integer of 3 to 10; Z denotes CH.sub.3, C.sub.2 H.sub.5 or CF.sub.3 ; k is 0 or an integer of 5 to 8; l is 0 or 1; n is an integer of 1 to 6; W denotes CH.sub.3 or CF.sub.3 ; when W is CH.sub.3, p and q are both 0 and r is 8; when W is CF.sub.3, p is 5 to 8, q is 1 and r is 1 to 4; and C* denotes an asymmetric carbon atom,and a liquid crystal display device using same.

    摘要翻译: (1)式(I-a)或(3)式(I-c)表示的化合物的反铁电液晶化合物(I-c)其中R表示碳原子数为6〜14的直链脂肪族烷基; A表示单键或氧原子; X和Y独立地表示氢原子或氟原子,但它们不同时为氢原子; h和i独立为1或2; m为3〜10的整数。 Z表示CH3,C2H5或CF3; k为0或5〜8的整数, l为0或1; n为1〜6的整数。 W表示CH3或CF3; 当W为CH3时,p和q均为0,r为8; 当W为CF 3时,p为5至8,q为1且r为1至4; C *表示不对称碳原子,和使用该碳原子的液晶显示装置。