Electro-optical liquid-crystal
    3.
    发明授权
    Electro-optical liquid-crystal 失效
    电光液晶

    公开(公告)号:US06342279B1

    公开(公告)日:2002-01-29

    申请号:US08728370

    申请日:1996-10-10

    IPC分类号: C09K1934

    摘要: The invention relates to an electrooptical liquid-crystal display having a realignment layer for realigning the liquid crystals, where the field thereof has a significant component parallel to the liquid-crystal layer, containing a liquid-crystalline medium having positive dielectric anisotropy, where the medium comprises at least one mesogenic compound which contains a group of the formula I and at least one compound of formula II wherein L1 is H or F; R1 R2 are H, an alkyl or alkenyl radical having 1 to 15 carbon atoms which may be substituted; Q is a radical of the formula —(O)q (CH2)r—(CF2)s— in which q is 0 or 1; r is 0 or an integer of 1 to 6, and s is an integer of 0 to 6; X is F or Cl, and in the case where s ≠0, is alternatively H, and A1 and A2 are each, independently of one another, a 1,4-cyclohexenylene or trans-1,4-cyclohexylene which may be substituted; 1,4-phenylene in which may be substituted, 1,4-bicyclo[2.2.2]octylene, piperidine-1,4-diyl, naphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl and 1,2,3,4 tetrahydronaphthalene-2,6-diyl, which may be substituted; L2 and L3 are each, independently of one another, H or F; Z1 and Z2 are each, independently of one another, —CO—O—, —O—CO—, —CH2O—, —OCH2—, —CH2CH2—, —CH═CH—, —C≡C— or a single bond, or one of the radicals Z1 and Z2 is alternatively —(CH2)4— or —CH═CH—CH2CH2—, and m is 0, 1 or 2.

    摘要翻译: 本发明涉及一种具有重新排列液晶的重新对准层的电光学液晶显示器,其中其场具有与液晶层平行的显着分量,其含有具有正的介电各向异性的液晶介质,其中介质 包含至少一种包含式I基团的介晶化合物和至少一种式II的化合物,其中L1为H或F; R1R2是H,可被取代的具有1至15个碳原子的烷基或烯基; Q是式 - (O)q(CH 2)r - (CF 2)s - ,其中q是0或1的基团; r为0或1〜6的整数,s为0〜6的整数。 X是F或Cl,并且在s <> 0的情况下,或者H,并且A 1和A 2各自彼此独立地为可被取代的1,4-亚环己基或反式-1,4-亚环己基 ; 可以被取代的1,4-亚苯基,1,4-二环[2.2.2]亚辛基,哌啶-1,4-二基,萘-2,6-二基,十氢萘-2,6-二基和1,2 3,4四氢萘-2,6-二基,可以被取代; L2和L3各自独立地为H或F; Z 1和Z 2各自独立地为-CO-O-,-O-CO-,-CH 2 O - , - OCH 2 - , - CH 2 CH 2 - , - CH = CH - , - C = C-或单键 ,或基团Z 1和Z 2中的一个可选择地为 - (CH 2)4 - 或-CH = CH-CH 2 CH 2 - ,m为0,1或2。

    Optically active compounds, and a liquid-crystalline phase
    9.
    发明授权
    Optically active compounds, and a liquid-crystalline phase 失效
    光学活性化合物和液晶相

    公开(公告)号:US5393459A

    公开(公告)日:1995-02-28

    申请号:US956938

    申请日:1992-10-05

    摘要: The invention relates to optically active compounds of the formula I ##STR1## in which R is an alkyl or alkenyl radical having up to 15 carbon atoms which is unsubstituted, monosubstituted by --CN or at least monosubstituted by fluorine or chlorine, it also being possible for a CH.sub.2 group in these radicals to be replaced by --O--, --CO--, --O--CO--, --CO--O-- or --O--CO--O--,A.sup.1 and A.sup.2 are each, independently of one another, a 1,4-phenylene radical, pyridine-2,5-diyl radical, pyrimidine-2,5-diyl radical, pyrazine-2,5-diyl radical, pyridazine-3,6-diyl radical, 1,3,4-thiadiazole-2,5-diyl radical, 1,2,4-thiadiazole-3,5-diyl radical or trans-1,4-cyclohexylene radical, each of which is unsubstituted or substituted by one or two fluorine atoms, and in which, in addition, one or two non-adjacent CH.sub.2 groups may be replaced by --O-- and/or --S--, and/or a CH group,Z.sup.1, Z.sup.2 and Z.sup.3 are each, independently of one another, --CO--O--, --O--CO--, --CH.sub.2 O--, --OCH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C-- or a single bond,Q.sup.1 is --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 --, --OCH.sub.2 --, --CH.sub.2 OCH.sub.2 --, --OCH.sub.2 CH.sub.2 --, --O--CO-- or --CO--OCH.sub.2 --,Q.sup.2 is --O--, --O--CO--, --(CH.sub.2).sub.3 --)-- or a single bond,m is 0, 1, 2 or 3,n is 0 or 1, ando is 1 to 9, and the use thereof as components of liquid-crystalline phases.

    摘要翻译: 本发明涉及式I的旋光活性化合物,其中R是具有至多15个碳原子的烷基或烯基,其未被取代,被-CN单取代或至少被氟或氯单取代,也可能是 对于这些基团中的CH 2基团被-O-,-CO-,-O-CO-,-CO-O-或-O-CO-O-,A1和A2各自彼此独立地取代, 吡啶-2,5-二基,嘧啶-2,5-二基,吡嗪-2,5-二基,哒嗪-3,6-二基,1,3,4-三基, 噻二唑-2,5-二基,1,2,4-噻二唑-3,5-二基或反-1,4-亚环己基,其各自为未取代的或被一个或两个氟原子取代,其中 另外,一个或两个不相邻的CH 2基团可以被-O-和/或-S-代替,和/或CH基,Z 1,Z 2和Z 3彼此独立地是-CO-O - , - O - CO - , - CH 2 O - , - OCH 2 - , - CH 2 CH 2 - , - CH = CH - , - C 3BOND C-或单键,Q 1是-CH 2 CH 2 - CH 2 CH 2 CH 2 - , - OCH 2 - , - CH 2 OCH 2 - , - OCH 2 CH 2 - , - O-CO-或-CO-OCH 2 - ,Q 2是-O - , - O - CO - , - (CH 2)3 - ) - 键,m为0,1,2或3,n为0或1,o为1至9,并且其用作液晶相的组分。