Difluorophenyl pyrimidyl pyridine derivatives and the use thereof in
liquid crystal mixtures
    1.
    发明授权
    Difluorophenyl pyrimidyl pyridine derivatives and the use thereof in liquid crystal mixtures 失效
    二氟苯基嘧啶基吡啶衍生物及其在液晶混合物中的应用

    公开(公告)号:US6022492A

    公开(公告)日:2000-02-08

    申请号:US91404

    申请日:1999-01-14

    摘要: Difluorophenylpyrimidylpyridine derivatives of the formula (I) ##STR1## wherein X is N and Y is CH or X is CH and Y is N;R.sup.1 and R.sup.2 are identical or different and area) an unbranched or branched alkyl chain having 1 to 20 carbon atoms, whereaa) one or more non-adjacent and non-terminal CH.sub.2 groups may be replaced by --O--, --CO--O--, --O--CO--, --O--CO--O-- or --Si(CH.sub.3).sub.2 --, and/orab) one or more H atoms may be replaced by F, and/orac) the terminal CH.sub.3 group may be replaced by one of the following chiral groups (optically active or racemic): ##STR2## R.sup.3, R.sup.4 and R.sup.5 are identical or different and are hydrogen or a straight-chain or branched alkyl radical having 1-16 carbon atoms (with or without an asymmetrical carbon atom), where, in addition, one or more non-adjacent non-terminal CH.sub.2 groups may be replaced by --O--, and/or where one or more H atoms of the alkyl radical may be substituted by --F; R.sup.4 and R.sup.5 may alternatively together be --(CH.sub.2).sub.4 -- or --(CH.sub.2).sub.5 -- if they are bonded to a dioxolane system,are suitable as components, in particular, of ferroelectric liquid-crystal mixtures.

    摘要翻译: PCT No.PCT / EP96 / 05774 Sec。 371日期1999年1月14日第 102(e)日期1999年1月14日PCT 1996年12月20日PCT公布。 第WO97 / 24351号公报 日期:1997年7月10日,式(I)的二氟苯基嘧啶基吡啶衍生物,其中X为N,Y为CH或X为CH,Y为N; R1和R2相同或不同,并且a)具有1至20个碳原子的无支链或支链烷基链,其中aa)一个或多个非相邻和非末端的CH 2基团可以被-O - , - CO- O-,-O-CO-,-O-CO-O-或-Si(CH 3)2 - 和/或ab)一个或多个H原子可以被F替代,和/或ac) 可以被以下手性基团(光学活性或外消旋)之一代替:R3,R4和R5相同或不同,是氢或具有1-16个碳原子的直链或支链烷基(具有或不具有不对称的 碳原子),此外,一个或多个非相邻的非末端CH 2基团可被-O-取代,和/或烷基的一个或多个H原子可被-F取代; R4和R5可以一起为 - (CH 2)4 - 或 - (CH 2)5 - 如果它们与二氧杂环戊烷体系结合,则适合作为组分,特别是铁电液晶混合物。

    Five membered-ring compounds and utilization thereof in liquid crystal mixtures
    3.
    发明授权
    Five membered-ring compounds and utilization thereof in liquid crystal mixtures 有权
    五元环化合物及其在液晶混合物中的应用

    公开(公告)号:US07052742B1

    公开(公告)日:2006-05-30

    申请号:US10070242

    申请日:2000-08-31

    摘要: Fluorinated five-membered ring compounds of the formula (I) R1—X—(A1—M1)a—(A2—M2)b—A3—Y—E   (I) where E is a radical T—Z—R2 containing a five-membered ring and, for example, T is undirected and is 4-fluorothiophene-2,5-diyl, 3-fluorothiophene-2,5-diyl, 3-fluorothiophene-2,4-diyl, 5-fluorothiophene-2,4-diyl, furan-2,5-diyl, furan-2,4-diyl, isoxazole-3,5-diyl, thiazole-2,5-diyl, thiazole-2,4-diyl, cyclopentane-1,3-diyl or cyclopentene-1,3-diyl, R1 and R2 are hydrogen, X is a single bond, —O—, OC(═O)—, —C(═O)O— or —OC(═O)O—, Y is —OC(═O)—, —OCH2—, —CH2CH2—, Z is a single bond or —O—, A1, A2, A3 are each, independently of one another, phenylene-1,4-diyl, M1, M2 are undirected and are each, independently of one another, —OC(═O)—, —OCH2—, —CH2CH2—, —OC(═O)CH2CH2—, —OCH2CH2CH2—, —C≡C—, —CH2CH2CH2CH2— or a single bond, a, b are each, independently of one another, 0 or 1, are used in FLC mixtures.

    摘要翻译: 式(I)的氟化五元环化合物<?in-line-formula description =“In-line Formulas”end =“lead”→> R 1 -X-(A SUP (1) (i)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中E是基团TZR 2 ,例如T是无取代的,是4-氟噻吩-2,5-二基,3-氟噻吩-2,5-二基,3-氟噻吩-2,4-二基, 二氟基,5-氟噻吩-2,4-二基,呋喃-2,5-二基,呋喃-2,4-二基,异恶唑-3,5-二基,噻唑-2,5-二基,噻唑-2,4-二基, 二烷基,环戊烷-1,3-二基或环戊烯-1,3-二基,R 1和R 2是氢,X是单键,-O-, OC(-O) - , - C(-O)O-或-OC(-O)O-,Y是-OC(-O) - , - OCH 2 - , - Z是单键或-O-,A 1,A 2,A 2, SUP> 3 <! - SIPO - >彼此独立地为亚苯基-1,4-二基,M 1,M 2, 无取代,各自独立地为-OC(-O) - , - OCH 2 - , - CH 2 CH 2 - ,-OC(-O)CH 2 CH 2 - , - CH 2 CH 2 CH 2 - 2 - , - C≡C - , - CH 2 CH 2 CH 2 CH 2 CH 2 - 或单键,a,b各自独立地为0或1,用于FLC混合物。

    Monostable ferroelectric active matrix display
    6.
    发明授权
    Monostable ferroelectric active matrix display 有权
    单稳态铁电有源矩阵显示

    公开(公告)号:US06605323B1

    公开(公告)日:2003-08-12

    申请号:US09719037

    申请日:2001-04-23

    IPC分类号: C09K1934

    摘要: In a monostable ferroelectric active matrix display comprising a liquid-crystal layer in the form of a monodomain having an unambiguously defined direction of the layer normals z of the smC* phase, the layer normals z and the preferential direction n of the nematic or cholesteric phase (N* phase) form an angle of more than 5°.

    摘要翻译: 在单稳态铁电有源矩阵显示器中,包括具有明确定义的smC *相的层法线z的单畴形式的液晶层,层法线z和向列相或胆甾相的优选方向n (N *相)形成大于5°的角度。

    Liquid crystal mixture
    7.
    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。