Liquid crystal mixtures and devices
    6.
    发明授权
    Liquid crystal mixtures and devices 失效
    液晶混合物和装置

    公开(公告)号:US5891358A

    公开(公告)日:1999-04-06

    申请号:US676203

    申请日:1996-07-10

    摘要: The invention describes liquid crystal compounds of formula (I) which are suitable for use in liquid crystal devices including those devices which exploit the electroclinic effect, ##STR1## where X may be CN, NO.sub.2, CF.sub.3, CF.sub.2 H, CFH.sub.2, halogen, hydrogen, alkyl or alkoxy; X.sub.2 may be CN, NO.sub.2, CF.sub.3, CF.sub.2 H, CFH.sub.2, halogen, hydrogen, alkyl or alkoxy; X.sub.3 may be CN, NO.sub.2, CF.sub.3, CF.sub.2 H, CFH.sub.2, halogen, alkyl, alkoxy or hydrogen; X.sub.4 may be CN, NO.sub.2, CF.sub.3, CF.sub.2 H, CFH.sub.2, halogen, alkyl, alkoxy or hydrogen; provided that at lease one of X or X.sub.2 is CF.sub.3, CF.sub.2 H, CFH.sub.2, CN, NO.sub.2 or halogen; A and B are independently phenyl, mono-fluorinated phenyl, di-fluorinated phenyl or cyclohexyl; Y may be single bond, COO, OOC, C.dbd.C; q may be 0 or 1; R.sub.1 may be an end group of formula (II) wherein Z may be a single bond, O, CO.sub.2, (CH.sub.2).sub.n or (CH.sub.2).sub.n O where n may be 1 or 2; J and M may be independently H, C.sub.1-4 alkyl; W may be C.sub.1 -C.sub.12 straight or branched alkyl chain; R.sub.2 may contain 1-14 carbon atoms wherein one or more non-adjacent CH.sub.2 groups may be replaced by CO.sub.2 or O. X or X.sub.2 may give rise to steric hindrance with the nearest terminal group. The materials of the current invention may be mixed together and/or with other liquid crystal compounds. Suitable devices which the materials of the present invention may be incorporated in include beam steerers, piezoelectric actuators or sensors and pyroelectric sensors and displays in general. The materials of the present invention may also be useful as dopants in ferroelectrics and as second order non-linear optic materials for second harmonic conversion of light.

    摘要翻译: PCT No.PCT / GB95 / 00018 Sec。 371日期:1996年7月10日 102(e)日期1996年7月10日PCT 1995年1月6日PCT PCT。 WO95 / 18848 PCT公开 日期:1995年7月13日本发明描述了适用于液晶装置的液晶化合物,其中包括那些利用电击效应的装置,其中X可以是 CN,NO 2,CF 3,CF 2 H,CFH 2,卤素,氢,烷基或烷氧基; X 2可以是CN,NO 2,CF 3,CF 2 H,CFH 2,卤素,氢,烷基或烷氧基; X3可以是CN,NO2,CF3,CF2H,CFH2,卤素,烷基,烷氧基或氢; X 4可以是CN,NO 2,CF 3,CF 2 H,CFH 2,卤素,烷基,烷氧基或氢; 条件是X或X 2中至少一个为CF 3,CF 2 H,CFH 2,CN,NO 2或卤素; A和B独立地是苯基,单氟化苯基,二氟化苯基或环己基; Y可以是单键,COO,OOC,C = C; q可以是0或1; R 1可以是式(II)的端基,其中Z可以是单键O,CO 2,(CH 2)n或(CH 2)n O,其中n可以是1或2; J和M可以独立地是H,C 1-4烷基; W可以是C 1 -C 12直链或支链烷基链; R2可以含有1-14个碳原子,其中一个或多个不相邻的CH 2基团可以被CO 2或O取代。X或X 2可以引起与最近的末端基团的空间位阻。 本发明的材料可以混合在一起和/或与其它液晶化合物混合。 可并入本发明的材料的合适的装置包括光束转向器,压电致动器或传感器以及热电传感器和显示器。 本发明的材料也可用作铁电体中的掺杂剂,并且可用作光二次谐波转换的二阶非线性光学材料。

    Anisotropic organic compounds
    7.
    发明授权
    Anisotropic organic compounds 失效
    各向异性有机化合物

    公开(公告)号:US5888421A

    公开(公告)日:1999-03-30

    申请号:US308207

    申请日:1994-09-19

    摘要: ##STR1## The invention describes liquid crystalline compounds or formula (I), where A, D and G are independently selected from phenyl, thiophene, hydrogenated phenyl, chlorinated phenyl and fluorinated phenyl, B and E are independently selected from a single bond C═≢C. C.tbd.C.C00, azoxy and diazo, k and m are independently selected from 1 and 0, such that m+n is 1 or 2, and R
    1 and R
    2 are independently selected from R, R0, alkynyl, thioalkyl, hydrogen, CN, NCS and SCN; provided that at least one of R
    1 and R
    2 is selected from CN, NCS and SCN and that at least one of A, D and G is phenyl; and excluding where at least one of R
    1 and R
    2 is independently selected as CN and one of A, D or G is not thiophene, and where m is 0, A, and D are phenyl, B is a single bond and only one of R
    1 or R
    2 is NCS. Also described are compounds suitable for inclusion in a device utilizing pretransitional characteristics of liquid crystalline materials in the isotropic phase, of general formula (II) where J and Y are independently selected from phenyl, thiophene, hydrogenated phenyl, chlorinated phenyl and fluorinated phenyl, X is selected from C═≢C. C.tbd.C.COO azoxy and diazo, k is 1 or 0 and R
    3 and R
    4 are independently selected from R, RO, alkynyl, thioalkyl, hydrogen, CN, NCS and SCN; provided that at least one of R
    3 and R
    4 is selected from CN, NCS and SCN and that at least one of J and Y is phenyl.

    摘要翻译: (I)R3J(X)kYR4(II)本发明描述了液晶化合物或式(I),其中A,D和G独立地选自苯基,噻吩,氢化苯基,氯化苯基和氟化苯基,B 和E独立地选自单键C = NOTEQUAL C. C 3BOND C.C00,azoxy和diazo,k和m独立地选自1和0,使得m + n是1或2,并且R 1和R 2是 独立地选自R,R 0,炔基,硫代烷基,氢,CN,NCS和SCN; 条件是R1和R2中的至少一个选自CN,NCS和SCN,并且A,D和G中的至少一个是苯基; 并且不包括其中R 1和R 2中的至少一个独立地选择为CN且A,D或G中的一个不是噻吩,并且其中m是0,A和D是苯基,B是单键,并且只有一个R 1 或R2是NCS。 还描述了适用于在通式(II)的各向同性相中使用液晶材料的预过滤特性的装置中的化合物,其中J和Y独立地选自苯基,噻吩,氢化苯基,氯代苯基和氟化苯基,X C选自C = NOTEQUAL C. C 3BOND C.COO azoxy和diazo,k为1或0,R 3和R 4独立地选自R,RO,炔基,硫代烷基,氢,CN,NCS和SCN; 条件是R3和R4中的至少一个选自CN,NCS和SCN,并且J和Y中的至少一个是苯基。

    Naphthyl organic compounds
    8.
    发明授权
    Naphthyl organic compounds 失效
    萘基有机化合物

    公开(公告)号:US5820781A

    公开(公告)日:1998-10-13

    申请号:US470153

    申请日:1995-06-06

    摘要: R.sub.1 --A--(X).sub.m --(B).sub.n --R.sub.2 (I) R.sub.3 --J--(Y).sub.p --(Z).sub.q --R.sub.4 (II) Liquid crystal compounds of formula (I) are described, where formula (I) is given as R.sub.1 --A--(X).sub.m --(B).sub.n --R.sub.2 where A is selected from nathyl, fluorinated naphthyl, brominated naphthyl, B is selected from phenyl, methylated phenyl, brominated phenyl, fluorinated phenyl, thiophene, pyrimidine and pyridine, R.sub.1 and R.sub.2 are independently selected from alkyl, alkoxy, alkynyl, thioalkyl, Br, CN, SCN, NCS, perfluoroalkyl, perfluoroalkoxy and hydrogen, X is selected from C.tbd.C, COO and C.tbd.C, m is 0 or 1, n is 0 or 1 where m is 1 and n is 0 where m is 0; provided that where A is naphthyl, n is 1 and m is 0 then B is selected from methylated phenyl, brominated phenyl, thiophene, pyrimidine and pyridine; and further provided that where A is naphthyl, X is C.tbd.C, m is 1 and n is 1, then B is selected from thiophene, pyrimidine and pyridine. Also described are liquid crystal compounds suitable for inclusion in devices utilizing pretransitional characteristics of liquid crystalline materials in the isotropic phase and described by formula (II): R.sub.3 --J--(Y).sub.p --(Z).sub.q --R.sub.4, where J is selected from nathyl, fluorinated naphthyl, brominated naphthyl, Z is selected from phenyl, methylated phenyl, brominated phenyl, fluorinated phenyl, thiophene, pyrimidine and pyridine, R.sub.1 and R.sub.2 are independently selected from alkyl, alkoxy, alkynyl, thioalkyl, Br, CN, SCN, NCS, perfluoroalkyl, perfluoroalkoxy and hydrogen, Y is selected from C.dbd.C, COO and C.dbd.C, p is 0 or 1, q is 0 or 1 where p is 1 and q is 0 where p is 0.

    摘要翻译: R 1 -A(X)m - (B)n -R 2(I)R 3 -J-(Y)对 - (Z)q -R 4(II)式(I)的液晶化合物,其中式 I)为R1-A-(X)m-(B)n-R2,其中A选自萘基,氟化萘基,溴化萘基,B选自苯基,甲基化苯基,溴代苯基,氟化苯基,噻吩, 嘧啶和吡啶,R1和R2独立地选自烷基,烷氧基,炔基,硫代烷基,Br,CN,SCN,NCS,全氟烷基,全氟烷氧基和氢,X选自C 3BOND C,COO和C 3 C, 或1,n为0或1,其中m为1,n为0,其中m为0; 条件是其中A为萘基,n为1,m为0,则B选自甲基化苯基,溴化苯基,噻吩,嘧啶和吡啶; 并且进一步提供,其中A是萘基,X是C 3 C 6,m是1,n是1,则B选自噻吩,嘧啶和吡啶。 还描述了适于包含在利用各向同性相中并由式(II)表示的液晶材料的预过滤特性的器件中的液晶化合物:R3-J-(Y)对(Z)q-R4,其中J被选择 从萘基,氟化萘基,溴化萘基,Z选自苯基,甲基化苯基,溴化苯基,氟化苯基,噻吩,嘧啶和吡啶,R1和R2独立地选自烷基,烷氧基,炔基,硫代烷基,Br,CN,SCN ,NCS,全氟烷基,全氟烷氧基和氢,Y选自C = C,COO和C = C,p为0或1,q为0或1,其中p为1,q为0,其中p为0。

    Dioxane derivatives
    9.
    发明授权
    Dioxane derivatives 失效
    二恶烷衍生物

    公开(公告)号:US5683623A

    公开(公告)日:1997-11-04

    申请号:US392903

    申请日:1995-03-01

    摘要: Dioxane derivatives for use as components in liquid crystal devices (LCDs) of general formula (A), wherein X is CH or B; R.sup.1, R.sup.2 are each A.sup.1, OA.sup.1, OCOA.sup.2, or COOA.sup.2 ; A.sup.1 is a straight or branched chain alkyl group containing from 1 to 20 carbon atoms and may be substituted with one or more F or CN. A.sup.2 is a straight or branched chain alkyl group containing from 1 to 20 carbon atoms and may be substituted with one or more F or CN and if straight may be unsubstituted. Y.sup.1, Y.sup.2, Y.sup.3 may each be (CH.sub.2).sub.p, (CH.sub.2).sub.p COO or OCO(CH.sub.2).sub.p ; p is from 0 to 10, n is 0 or 1, m is 0 or 1, either or both of Z.sub.1 and Z.sub.2 are F and, when not F, are H; Y.sup.4 is a covalent bond or, when n is 0, may be (a) LCDs, containing the devices exhibit very fast switching speed, bi-stable characteristics, enhanced greyscale and storage capabilities and a wide viewing angle.

    摘要翻译: PCT No.PCT / GB93 / 01929 Sec。 371 1995年3月1日 102(e)1995年3月1日PCT PCT 1993年9月13日PCT公布。 公开号WO94 / 06885 (a)用作通式(A)的液晶装置(LCD)中的组分的二恶烷衍生物,其中X是CH或B;(A) R1,R2分别为A1,OA1,OCOA2或COOA2; A1是含有1至20个碳原子的直链或支链烷基,并且可被一个或多个F或CN取代。 A2是含有1至20个碳原子的直链或支链烷基,并且可以被一个或多个F或CN取代,如果直链可以是未取代的。 Y1,Y2,Y3各自为(CH 2)p,(CH 2)p COO或OCO(CH 2)p; p为0至10,n为0或1,m为0或1,Z1和Z2中的任一个或两个为F,当不为F时,为H; Y4是共价键,或者当n为0时,可以是(a)含有这些器件的LCD显示出非常快的开关速度,双稳态特性,增强的灰度和存储能力以及广视角。

    Componds for use in liquid crystal devices
    10.
    发明申请
    Componds for use in liquid crystal devices 有权
    Componds用于液晶装置

    公开(公告)号:US20090066905A1

    公开(公告)日:2009-03-12

    申请号:US11665765

    申请日:2005-11-01

    IPC分类号: G02F1/13 C07D319/08

    摘要: Liquid crystal compounds of Formula (I) for use in liquid crystal devices contains a dioxatetralin unit within the mesogenic liquid crystal core. The dioxatetralin unit may be located at any position within the mesogenic core of the liquid crystal compound, either at the terminus of the liquid crystal core or alternatively substantially in the middle of the liquid crystal core. The compounds of the invention exhibit fast switching and may be used in liquid crystal mixtures for particular use in imaging or display media, such as monitors or televisions.

    摘要翻译: 用于液晶装置的式(I)的液晶化合物在介晶液晶芯内含有二氧杂环丁烯单元。 二氯杂环丁烷单元可以位于液晶化合物的介晶核心内的任何位置,无论是在液晶核心的末端还是基本上在液晶核心的中间。 本发明的化合物表现出快速切换,并且可以用于特别用于成像或显示介质(例如监视器或电视)的液晶混合物中。