Liquid crystal mixture
    3.
    发明授权
    Liquid crystal mixture 有权
    液晶混合物

    公开(公告)号:US06958176B2

    公开(公告)日:2005-10-25

    申请号:US10363009

    申请日:2001-08-25

    摘要: Liquid crystal mixture comprising compounds of formula (I) wherein R1: is H or a linear or branched alkyl group or branched alkenyl group R2: stands for a) H or F b) a linear or branched alkyl group or a linear or branched alkenyl group c) a radical wherein R3, R4, R5, R6: are an alkyl group M1, M2: represent independently from another a single bond, —OC(═O), —C(═O)O—, —OCH2—, —NH— A: is a) a linear or branched alkan-α,ω-diylgroup or alkene-α,ω-diyl group b) the group —C(═Y)— wherein Y is CH-Z with Z being phenylen-1,4-diyl, optionally substituted by one to three halogenatoms, alkyl or alkyloxy groups, c) the group —CHY wherein Y is CH2-Z with Z being phenylen-1,4-diyl, optionally substituted by one to three halogenatoms, alkyl or alkyloxy groups d) a group wherein p, q are 0, 1 or 2; M3 is a single bond or —OC(═O)—, —C(═O)O—, —OCH2—, —CH2O—, —C≡C—, —CH2CH2—, —CH2CH2CH2CH2— the radicals are phenylen-1,4-diyl, X is H, OH, a linear or branched alkyl or alkyloxy group, m: is 0 or 1 X and M1-(A)m-M2-R2 together can constitute a) a ring of 4 to 16 members, b) a combination of two either directly linked or spiro-linked rings.

    摘要翻译: 包含其中R 1为H或直链或支链烷基或支链烯基R 2的式(I)化合物的液晶混合物代表a)H或 F b)直链或支链烷基或直链或支链烯基c)其中R 3,R 4,R 5, R 6是烷基,其中独立地表示单键,-OC( - O), - -C(-O)O - , - OCH 2 - , - NH- A:是a)直链或支链烷烃-α,ω-二基或烯-α,ω-二基b )基团-C(-Y) - 其中Y是CH-Z,其中Z是亚苯基-1,4-二基,任选被一至三个卤素原子,烷基或烷氧基取代,c)基团-CHY,其中Y是CH Z为亚苯基-1,4-二基,任选被一至三个卤素原子取代,烷基或烷氧基; d)其中p,q为0,1或2的基团; M 3是单键或-OC(-O) - , - C(-O)O-,-OCH 2 - , - CH 2, O - , - C≡C - , - CH 2 CH 2 - , - CH 2 CH 2 - 基团是亚苯基-1,4-二基,X是H,OH,直链或支链烷基或烷氧基,m:是 0或1 X和M 1 - (A)m - 2 - 2 - 2 - 2一起可以构成一个 )4至16个成员的环,b)两个直接连接或螺旋环的组合。

    Disubstituted phenanthrenes and their use in liquid-crystal mixtures
    4.
    发明授权
    Disubstituted phenanthrenes and their use in liquid-crystal mixtures 有权
    二取代菲及其在液晶混合物中的应用

    公开(公告)号:US06495220B2

    公开(公告)日:2002-12-17

    申请号:US09761897

    申请日:2001-01-17

    IPC分类号: C09K1932

    摘要: Compounds of the formula (I) R1—A—Z1  (I) in which: R1 is an alkyl radical having 1 to 8 carbon atoms or an alkenyl radical having 2 to 8 carbon atoms, where, in each case, one (nonterminal) —CH2— group may also be replaced by —O— or —C(═O)O— and/or one or more H may be replaced by F A is phenanthrene-2,7-diyl or 9,10-dihydrophenanthrene-2,7-diyl Z1 is F, OCHxF3−x or CHxF3−x, where, in each case, x is 0, 1 or 2, OC2HzF5−z or C2HzF5−z, where, in each case, z is 0, 1, 2, 3 or 4, CH═CF2 or Cl, with the proviso that 2-fluoro-7-methoxy-phenanthrene is excluded.

    摘要翻译: 其中:R1是具有1-8个碳原子的烷基或具有2至8个碳原子的烯基的式(I)化合物,其中在每种情况下都可以被一个(非终端的)-CH 2 - 基团取代 通过-O - 或-C(= O)O-和/或一个或多个H可以被FA代替为菲-2,7-二基或9,10-二氢菲-2,7-二基Z1为F,OCHxF3- x或CH x F 3-x,其中,在每种情况下,x为0,1或2,OC2HzF5-z或C2H5F5-z,其中,在每种情况下,z为0,1,2,3或4,CH = CF 2或 Cl,条件是排除了2-氟-7-甲氧基菲。

    Monostable ferroelectric active-matrix display
    7.
    发明授权
    Monostable ferroelectric active-matrix display 有权
    单稳态铁电有源矩阵显示器

    公开(公告)号:US06704086B1

    公开(公告)日:2004-03-09

    申请号:US09700517

    申请日:2001-03-06

    IPC分类号: G02F1141

    CPC分类号: G02F1/1416

    摘要: The monostable ferroelectric active matrix display contains a liquid crystal layer in from of a monodomain with an unambiguously defined direction of the normal z to the layer of the smC* phase and is characterized by the fact that the normal z to the layer and the preferential direction n of the nematic or cholesteric phase (N* phase) form an angle of more than 5°.

    摘要翻译: 单稳态铁电有源矩阵显示器包含来自单畴的液晶层,具有明确定义的方向的正常z到smC *相的层,并且其特征在于:层的正常z和优选方向 向列相或胆甾醇相(N *相)的n形成大于5°的角度。

    Active matrix displays having high contrast values
    9.
    发明授权
    Active matrix displays having high contrast values 有权
    主动矩阵显示具有高对比度值

    公开(公告)号:US06482479B1

    公开(公告)日:2002-11-19

    申请号:US09626217

    申请日:2000-07-26

    IPC分类号: C09K1902

    摘要: An active matrix display comprises a chiral smectic liquid crystal mixture which has the phase sequence I—N*—SmC*, a spontaneous polarization in the operating temperature range of 10 &mgr;m at at least one temperature in the nematic or cholesteric phase and comprises at least one compound each from at least two of the substance classes (A), (B) and (C) and one or more compounds from substance class (D): (A): compounds comprising two rings which are directly linked to one another and are selected from phenylene-1,4-diyl, pyrimidine-2,5-diyl, pyridine-2,5-diyl and pyridazine-2,5-diyl with the proviso that at least one of these rings is a nitrogen heterocycle; (B): compounds comprising three rings selected from phenylene-1,4-diyl, two of the rings being directly linked to one another and the third ring being linked to one of the other two rings via an —OC(═O)— or —C(═O)—group, with the proviso that at least one of the three rings is fluorophenylene-1,4-diyl or ortho-difluorophenylene-1,4-diyl; (C): compounds comprising three rings which are directly linked to one another and are selected from phenylene-1,4-diyl, pyrimidine-2,5-diyl, pyridine-2,5-diyl and pyridazine-2,5-diyl with the proviso that at least one of these rings is a nitrogen heterocycle; (D): compounds comprising mesogenic groups suitable as components of liquid crystal mixtures.

    摘要翻译: 有源矩阵显示器包括具有相序IN * -SmC *的手性近晶液晶混合物,在-40℃/ cm 2的操作温度范围内的自发极化,在至少一个温度下的间距>10μm 向列相或胆甾型相,并且包含至少一种化合物,其各自为物质等级(A),(B)和(C)中的至少两种和一种或多种来自物质等级(D)的化合物:( A):包含两个环的化合物 它们彼此直接连接并且选自亚苯基-1,4-二基,嘧啶-2,5-二基,吡啶-2,5-二基和哒嗪-2,5-二基,条件是至少一个 这些环是氮杂环;(B):包含选自亚苯基-1,4-二基的三个环的化合物,其中两个环彼此直接相连,第三个环经由其中一个环经由 -OC(= O) - 或-C(= O) - 基团,条件是三个环中的至少一个为氟亚苯基-1,4-二基或邻 - 二氟亚苯基-1,4-二基;(C):包含三个环的化合物,其彼此直接连接并选自亚苯基-1,4-二基,嘧啶-2,5-二基,吡啶-2,5-二基 和哒嗪-2,5-二基,条件是这些环中的至少一个是氮杂环;(D):包含适合作为液晶混合物的组分的介晶基团的化合物。