Liquid crystal mixtures
    7.
    发明授权
    Liquid crystal mixtures 失效
    液晶混合物

    公开(公告)号:US4395350A

    公开(公告)日:1983-07-26

    申请号:US279493

    申请日:1981-07-01

    摘要: Liquid crystal mixtures containing a coloring substance which comprise about 5 to about 40 weight % of trans-p-[5-(4-alkylcyclohexyl)-2-pyrimidinyl]benzonitriles, about 10 to about 60 weight % of trans-4-alkylcyclohexane carboxylic acid phenyl esters and about 0.1 to about 15 weight % of one or more coloring substances of the formula ##STR1## wherein m stands for the number 1 and X is alkoxy and Y is nitro; or m stands for the number 1 or 2; and X is p-alkoxyphenyl and Y is nitro or dialkylamino, or X is alkoxy and Y is -p-nitrophenyl or -(dialkylamino)phenyl; or m stands for the number 2, and X is alkoxy and Y is alkoxy, nitro or dialkylamino, or both X and Y are dialkylamino; and wherein the alkoxy denotes a straight-chain group containing 1 to 12 carbon atoms and the alkyl groups in the dialkylamino each denote a straight-chain alkyl group containing 1 to 4 carbon atoms are described.

    摘要翻译: 包含着色物质的液晶混合物,其包含约5至约40重量%的反式p- [5-(4-烷基环己基)-2-嘧啶基]苯腈,约10至约60重量%的反式-4-烷基环己烷羧酸 酸性苯基酯和约0.1至约15重量%的一种或多种式Ⅻ的着色物质,其中m代表数字1,X是烷氧基,Y是硝基; 或m代表数字1或2; X为对烷氧基苯基,Y为硝基或二烷基氨基,或X为烷氧基,Y为对硝基苯基或 - (二烷基氨基)苯基; 或m代表数2,X是烷氧基,Y是烷氧基,硝基或二烷基氨基,或者X和Y都是二烷基氨基; 并且其中所述烷氧基表示含有1至12个碳原子的直链基团,并且描述二烷基氨基中的烷基各自表示含有1至4个碳原子的直链烷基。

    Ferroelectric liquid crystal mixtures and compounds as well as
electro-optical devices employing same
    9.
    发明授权
    Ferroelectric liquid crystal mixtures and compounds as well as electro-optical devices employing same 失效
    电化学液晶混合物和化合物作为使用其的电光设备

    公开(公告)号:US5100577A

    公开(公告)日:1992-03-31

    申请号:US464610

    申请日:1990-01-11

    摘要: A ferroelectric liquid crystalline mixture containing at least one optically active compound of the general formula ##STR1## wherein X.sup.1 denotes a single covalent bond, --COO--, --OOC--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 -- or --CH.sub.2 O--; one of rings A.sup.1, A.sup.2 and A.sup.3 represents trans-m-dioxan-2,5-diyl and the other two of rings A.sup.1, A.sup.2 and A.sup.3 each independently represent unsubstituted 1,4-phenylene or 1,4-phenylene substituted with cyano, halogen or lower alkyl; R.sup.1 and R.sup.2 each independently signify an optionally halogen-substituted alkyl group with up to 18 carbon atoms in which optionally 1 CH.sub.2 group or 2 non-adjacent CH.sub.2 groups is/are replaced by --O--, --CO--, --COO-- and/or --OOC--,as well as novel compounds falling under formula I and ferroelectric electrode-optical indicating devices including same.

    摘要翻译: 含有至少一种通式为I的光学活性化合物的铁电液晶混合物,其中X1表示单个共价键,-COO-,-OOC - , - CH 2 CH 2 - , - OCH 2 - 或-CH 2 O-; 环A 1,A 2和A 3中的一个表示反式间二恶烷-2,5-二基,环A1,A2和A3中的另外两个各自独立地表示被氰基取代的未取代的1,4-亚苯基或1,4-亚苯基, 卤素或低级烷基; R1和R2各自独立地表示具有至多18个碳原子的任选卤素取代的烷基,其中任选地1个CH 2基团或2个不相邻的CH 2基团被-O-,-CO-,-COO-和/ 或-OOC-,以及下式I的新型化合物和包括其的铁电电极 - 光学指示装置。

    Liquid crystal compounds and indicating device employing same
    10.
    发明授权
    Liquid crystal compounds and indicating device employing same 失效
    液晶化合物和使用其的指示装置

    公开(公告)号:US5013476A

    公开(公告)日:1991-05-07

    申请号:US121712

    申请日:1987-11-17

    摘要: A ferroelectric liquid crystal mixture containing at least one compound of the formula ##STR1## wherein n stands for the number 0 or 1; X.sup.1 represents a single covalent bond, --COO-- or --OOC-- and X.sup.2 represents a single covalent bond, --COO--, --OOC--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 -- or --CH.sub.2 O--; rings A.sup.1, A.sup.2 and A.sup.3 each independently signify 1,4-phenylene optionally substituted with cyano, halogen or lower alkyl or pyrimidin-2,5-diyl, pyrazin-2,5-diyl, when n is 1, trans-1,4-cyclohexylene or trans-m-dioxan-2,5-diyl; with the proviso that one of the rings present stands for pyrimidin-2,5-diyl or pyrazin-2,5-diyl when a further ring signifies trans-1,4-cyclohexylene or when n stands for the number 0 and X.sup.1 stands for a single covalent bond; and R.sup.1 signifies an optionally halogen-substituted alkenyl group with up to 18 carbon atoms in which optionally 1 or 2 non-adjacent CH.sub.2 groups are replaced by --O-- and/or a C.dbd.C double bond; with the proviso that R.sup.1 is different from 3,7-dimethyl-6-octenyloxy; R.sup.2 signifies an optionally halogen-substituted alkyl group with up to 18 carbon atoms in which optionally 1 or 2 non-adjacent CH.sub.2 groups are replaced by --O-- and/or a C.dbd.C double bond; with the proviso that residues R.sup.1 and/or R.sup.2 attached to an aromatic ring have at least 2 chain atoms between the aromatic ring and a C.dbd.C double bond present;as well as novel compounds falling under formula I and novel ferroelectric liquid crystal devices employing the compounds according to the invention.

    摘要翻译: 含有至少一种下式化合物的铁电液晶混合物,其中n代表数字0或1; X1表示单个共价键,-COO-或-OOC-,X2表示单个共价键,-COO - , - OOC - , - CH 2 CH 2 - , - OCH 2 - 或-CH 2 O-。 环A1,A2和A3各自独立地表示任选被氰基,卤素或低级烷基或嘧啶-2,5-二基,吡嗪-2,5-二基取代的1,4-亚苯基,当n为1时,反式-1,4 环己基或反式间二恶烷-2,5-二基; 条件是存在的一个环表示嘧啶-2,5-二基或吡嗪-2,5-二基,当另一个环表示反式-1,4-亚环己基或当n表示0时,X 1表示 单一共价键; 并且R 1表示任选具有至多18个碳原子的卤素取代的烯基,其中任选地1或2个不相邻的CH 2基团被-O-和/或C = C双键替代; 条件是R1不同于3,7-二甲基-6-辛烯氧基; R2表示任选具有至多18个碳原子的卤素取代的烷基,其中任选地1或2个不相邻的CH 2基团被-O-和/或C = C双键替代; 条件是连接到芳族环上的残基R1和/或R2在芳族环和存在的C = C双键之间具有至少2个链原子; 以及下式I中的新化合物和使用本发明化合物的新型铁电液晶装置。