Liquid crystal compounds and indicating device employing same
    1.
    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。

    Ferroelectric liquid crystal mixtures and compounds as well as
electro-optical devices employing same
    2.
    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 crystalline esters
    3.
    发明授权
    Liquid crystalline esters 失效
    液晶酯

    公开(公告)号:US5082589A

    公开(公告)日:1992-01-21

    申请号:US485710

    申请日:1990-02-27

    IPC分类号: C07C69/773 C09K19/30

    CPC分类号: C07C255/00 C09K19/3068

    摘要: Compounds of the formula ##STR1## wherein m represents is the number of 0 to 1; A is a single convalent bond, --CH.sub.2 --CH.sub.2 --, --OCH.sub.2 --, --COO-- or --OOC--; rings B, C and D are 1,4-phenylene optionally substituted with cyano, halogen or lower alkyl; Y.sup.1 and Y.sup.2 are hydrogen or one of them also is cyano; and R.sup.1 and R.sup.2 each represents C.sub.1 -C.sub.18 -alkyl or C.sub.2 -C.sub.18 alkenyl, either of which is optionally halogen-substituted, in which one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are optionally replaced by oxygen: with the provisos that at least one of R.sup.1 and R.sup.2 has a chiral carbon atom or R.sup.1 is straight-chain C.sub.4-18 -alkoxy and R.sup.2 is straight C.sub.3-18 -alkyl or a C--C double bond or both when A is --COO-- and at least one of R.sup.1 and R.sup.2 has a C--C double bond when A is a single covalent bond, their preparation, liquid crystalline mixtures containing these compounds and their use for electro-optical purposes are described.

    摘要翻译: 式(Ⅰ)化合物其中m表示0至1的数; A是单个共价键,-CH 2 -CH 2 - , - OCH 2 - , - COO-或-OOC-; 环B,C和D是任选被氰基,卤素或低级烷基取代的1,4-亚苯基; Y1和Y2是氢或其中之一也是氰基; 并且R 1和R 2各自表示任选被卤素取代的C 1 -C 18 - 烷基或C 2 -C 18烯基,其中一个CH 2基团或两个不相邻的CH 2基团任选被氧取代:条件是 R 1和R 2中的至少一个具有手性碳原子,或者R 1是直链C 4-18 - 烷氧基,并且R 2是直链C 3-8 - 烷基或CC双键,或者当A是-COO-时, 当A是单一共价键时,R1和R2具有CC双键,其制备,含有这些化合物的液晶混合物及其用于电光目的的用途。

    Liquid crystalline esters
    4.
    发明授权
    Liquid crystalline esters 失效
    液晶酯

    公开(公告)号:US4830470A

    公开(公告)日:1989-05-16

    申请号:US52659

    申请日:1987-05-20

    CPC分类号: C07C255/00 C09K19/3068

    摘要: Compounds of the formula ##STR1## wherein m represents is the number 0 or 1; A is a single covalent bond, --CH.sub.2 --CH.sub.2 --, --OCH.sub.2 --, --COO-- or --OOC--; rings B, C and D are 1,4-phenylene optionally substituted with cyano, halogen or lower alkyl; Y.sup.1 and Y.sup.2 are hydrogen or one of them also is cyano; and R.sup.1 and R.sup.2 each represents C.sub.1 -C.sub.18 -alkyl or C.sub.2 -C.sub.18 alkenyl, either of which is optionally halogen-substituted, in which one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are optionally replaced by oxygen; with the provisos that at least one of R.sup.1 and R.sup.2 has a chiral carbon atom or a C--C double bond or both when A is --COO-- and at least one of R.sup.1 and R.sup.2 has a C--C double bond when A is a single covalent bond, their preparation, liquid crystalline mixtures containing these compounds and their use for electro-optical purposes are described.

    摘要翻译: 式(Ⅰ)化合物其中m代表0或1; A是单个共价键,-CH 2 -CH 2 - , - OCH 2 - , - COO-或-OOC-; 环B,C和D是任选被氰基,卤素或低级烷基取代的1,4-亚苯基; Y1和Y2是氢或其中之一也是氰基; 并且R 1和R 2各自表示任选被卤素取代的C 1 -C 18 - 烷基或C 2 -C 18烯基,其中一个CH 2基团或两个不相邻的CH 2基团任选被氧代替; 条件是当A是-COO-时,R 1和R 2中的至少一个具有手性碳原子或CC双键,当A是单个共价键时,R 1和R 2中的至少一个具有CC双键, 描述了它们的制备方法,含有这些化合物的液晶混合物及其用于电光学目的的用途。

    Nitrogen heterocycles and liquid crystalline mixtures containing them
    6.
    发明授权
    Nitrogen heterocycles and liquid crystalline mixtures containing them 失效
    含氮杂环和含有它们的液晶混合物

    公开(公告)号:US5326497A

    公开(公告)日:1994-07-05

    申请号:US955633

    申请日:1992-10-02

    CPC分类号: C09K19/3469 C09K19/3444

    摘要: Compounds of the general formula ##STR1## wherein R.sup.1 is C.sub.5-12 -alkyl or C.sub.5-12 -alkenyl;R.sup.2 is C.sub.1-9 -alkyl or C.sub.2-9 -alkenyl; provided that at least one of groups R.sup.1 and R.sup.2 is alkenyl;X is a CH group or nitrogen;n is either 0 or 1;q is a whole number between 2 to 6 inclusive;r is either 0 or 1 provided that the sum of q and r at least 3,s is either 0 or 1; andp is either 1 or 2, provided that n is zero when p is 2;mixtures which contain these compounds as well as the use of these compounds for electro-optical purposes.

    摘要翻译: 其中R 1为C 5-12烷基或C 5-12链烯基的通式为其的化合物 R2是C1-9 - 烷基或C2-9 - 烯基; 基团R1和R2中的至少一个是烯基; X是CH基或氮; n为0或1; q是2到6之间的整数; r为0或1,条件是q和r之和至少为3,s为0或1; 并且p为1或2,条件是当p为2时n为零; 含有这些化合物的混合物以及这些化合物用于电光目的。

    Pyridine liquid crystalline compounds
    7.
    发明授权
    Pyridine liquid crystalline compounds 失效
    吡啶液晶化合物

    公开(公告)号:US4898455A

    公开(公告)日:1990-02-06

    申请号:US39143

    申请日:1987-04-16

    摘要: There is described compounds of the formula ##STR1## wherein X stands for CH and Y stands for N or X stands for N and Y stands for CH; A.sup.1 and A.sup.2 signify single covalent bonds or one of the groups A.sup.1 and A.sub.2 also signifies trans-1,4-cyclohexylene, cis-4-cyano-trans-1,4-cyclohexylene or 1,4-phenylene optionally substituted with halogen or methyl; ring B represents trans-1,4-cyclohexylene, 1,4-phenylene optionally substituted with halogen or methyl or, when A.sup.2 signifies a single covalent bond, also cis-4-cyano-trans-1,4-cyclohexylene; R.sup.1 denotes an optionally halogen-substituted alkyl or alkenyl group in which optionally one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are replaced by --O--, --COO-- and/or --OOC--; R.sup.2 signifies an optionally halogen-substituted alkyl or alkenyl group in which optionally one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are replaced by --O--, --COO-- and/or --OOC-- or R.sup.2 on a benzene ring also signifies --NCS, cyano or halogen; with the proviso that R.sup.1 denotes an optionally halogen-substituted alkenyl group in which optionally one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are replaced by --O--, --COO-- and/or --OOC-- when R.sup.2 signifies cyano or halogen; and with the proviso that R.sup.1 and/or R.sup.2 has a chiral carbon atom when R.sup.1 and R.sup.2 stand for optionally halogen-substituted alkyl groups in which optionally one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are replaced by --O--, --COO-- and/or --OOC--,as well as liquid crystalline mixtures and their use for electro-optical purposes.

    摘要翻译: 描述了式(Ⅰ)的化合物,其中X代表CH,Y代表N或X代表N,Y代表CH; A1和A2表示单个共价键,或者A1和A2之一也表示反式-1,4-亚环己基,顺式-4-氰基 - 反-1,4-亚环己基或任选被卤素或甲基取代的1,4-亚苯基 ; 环B表示反式-1,4-亚环己基,任选被卤素或甲基取代的1,4-亚苯基,或当A2表示单个共价键时,也表示顺式-4-氰基 - 反式-1,4-亚环己基; R1表示任选的卤素取代的烷基或烯基,其中任选一个CH 2基团或两个不相邻的CH 2基团被-O-,-COO-和/或-OOC-取代; R2表示任选的卤素取代的烷基或烯基,其中任选一个CH 2基团或两个不相邻的CH 2基团被-O-,-COO-和/或-OOC-或R2取代在苯环上也表示 -NCS,氰基或卤素; 条件是R 1表示任选的卤素取代的烯基,其中当R 2表示氰基或卤素时,任选地一个CH 2基团或两个不相邻的CH 2基团被-O-,-COO-和/或-OOC-取代 ; 并且条件是当R 1和R 2表示任选卤素取代的烷基时,R 1和/或R 2具有手性碳原子,其中任选地一个CH 2基团或两个不相邻的CH 2基团被-O-, - COO-和/或-OOC-,以及液晶混合物及其用于电光目的。

    Optically active compounds used for liquid crystalline mixtures
    9.
    发明授权
    Optically active compounds used for liquid crystalline mixtures 失效
    用于液晶混合物的光学活性化合物

    公开(公告)号:US5250222A

    公开(公告)日:1993-10-05

    申请号:US866076

    申请日:1992-04-01

    摘要: Optically active compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 each are alkyl with at least 2 carbon atoms; A.sup.1, A.sup.2 and A.sup.3 each are unsubstituted, cyano-, halogen- or methyl-substituted 1,4-phenylene, optionally having one or two CH groups replaced by nitrogen, unsubstituted, cyano- or methyl-substituted trans-1,4-cyclohexylene, the cyclohexylene optionally having one or two CH.sub.2 groups replaced by oxygen; Z.sup.1 and Z.sup.2 each are a single covalent bond, --COO--, --OOC--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --, --CH.sub.2 O--, --C.tbd.C--, --COS-- or --SOC--; m stands for the number 0 or 1; n is an integer of 0 to 4; X is oxygen or a methylene group; and each C* represents a chiral carbon atom, one of the chiral carbon atoms has the R-configuration while the other has the S-configuration.The compounds are used in liquid crystalline mixtures to compensate the temperature dependence of the threshold potential of liquid crystal cells.

    摘要翻译: 式(I)的光学活性化合物其中R 1和R 2各自为具有至少2个碳原子的烷基; A1,A2和A3各自为未取代的,氰基,卤素或甲基取代的1,4-亚苯基,任选具有一个或两个CH基团被氮取代,未取代的,氰基或甲基取代的反式-1,4-亚环己基 ,任选具有一个或两个CH 2基团被氧取代的亚环己基; Z 1和Z 2各自是单个共价键,-COO-,-OOC - , - CH 2 CH 2 - , - OCH 2 - , - CH 2 O - , - C 3 -C(O) - ,-COS-或-SOC-; m代表数字0或1; n为0〜4的整数。 X是氧或亚甲基; 并且每个C *表示手性碳原子,手性碳原子之一具有R-构型,而另一个具有S-构型。 该化合物用于液晶混合物中以补偿液晶单元的阈值电位的温度依赖性。

    Liquid crystalline mixtures having a chiral tilted smectic phase
    10.
    发明授权
    Liquid crystalline mixtures having a chiral tilted smectic phase 失效
    具有手性倾斜近晶相的液晶混合物

    公开(公告)号:US5356563A

    公开(公告)日:1994-10-18

    申请号:US74077

    申请日:1993-06-09

    摘要: Optically active compounds of the formula ##STR1## wherein m stands for the number 1 and R.sup.2 is an unsubstituted or halogen-substituted alkyl or alkenyl group in which optionally one methylene group is replaced by oxygen and/or optionally one methylene group is replaced by an ester group --COO-- or --OOC--; or m stands for the number 0 or 1 and R.sup.2 denotes a group of the formula ##STR2## R.sup.1 and R.sup.3 each independently represent an alkyl or alkenyl group in which optionally one methylene group is replaced by oxygen; Z.sup.1, Z.sup.2 and Z.sup.3 each independently are a single covalent bond, --CH.sub.2 O--, --OCH.sub.2 --, --CH.sub.2 CH.sub.2 --, --COO-- or --OOC--; n stands for the number 0 or 1; rings A.sup.1 and A.sup.2 each independently are unsubstituted or halogen, cyano and/or methyl-substituted 1,4-phenylene in which optionally 1 CH group or 2 CH groups is/are replaced by nitrogen; and C.sup.* denotes a chiral carbon atom; with the proviso that simultaneously R.sup.l does not are an alkyl group, m and n do not are the number 1, Z.sup.1 does not are the group --CH.sub.2 CH.sub.2 -- or --CH.sub.2 O-- and ring A.sup.1, Z.sup.2, ring A.sup.2 and R.sup.2 together do not are 4-(5-alkyl-2-pyrimidinyl)-phenyl, their preparation, liquid crystalline mixtures which contain these compounds and their use for electro-optical purposes.

    摘要翻译: 式I的光学活性化合物其中m代表数字1,R2是未取代或卤素取代的烷基或烯基,其中任选一个亚甲基被氧代替,和/或任选地一个亚甲基被 酯基-COO-或-OOC-; 或m代表数字0或1,并且R 2表示式II的基团R 1和R 3各自独立地表示烷基或烯基,其中任选的一个亚甲基被氧代替; Z 1,Z 2和Z 3各自独立地是单个共价键,-CH 2 O - , - OCH 2 - , - CH 2 CH 2 - , - COO-或-OOC-; n代表数字0或1; 环A1和A2各自独立地为未取代的或卤素,氰基和/或甲基取代的1,4-亚苯基,其中任选的1CH基团或2CH基团被氮取代; C *表示手性碳原子; 条件是同时R1不是烷基,m和n不是数字1,Z1不是基团-CH 2 CH 2 - 或-CH 2 O-,环A1,Z2,环A2和R2不是 4-(5-烷基-2-嘧啶基) - 苯基,它们的制备方法,含有这些化合物的液晶混合物及其用于电光目的。