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    • 6. 发明授权
    • Difluorophenyl pyrimidyl pyridine derivatives and the use thereof in
liquid crystal mixtures
    • 二氟苯基嘧啶基吡啶衍生物及其在液晶混合物中的应用
    • US6022492A
    • 2000-02-08
    • US91404
    • 1999-01-14
    • Toshiaki NonakaJi LiAyako TakeichiBarbara HornungJavier ManeroWolfgang SchmidtRainer Wingen
    • Toshiaki NonakaJi LiAyako TakeichiBarbara HornungJavier ManeroWolfgang SchmidtRainer Wingen
    • G02F1/13C07D401/04C07D405/14C09K19/02C09K19/34C09K19/42C07D211/72C07D239/02
    • C07D401/04C07D405/14C09K19/0225C09K19/3003C09K19/34C09K19/3466C09K19/42
    • 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.
    • 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。
    • 7. 发明授权
    • Liquid crystal mixture
    • 液晶混合物
    • US06958176B2
    • 2005-10-25
    • US10363009
    • 2001-08-25
    • Ji LiToshiaki NonakaAyako OgawaHans-Rolf DübalBarbara HornungWolfgang SchmidtRainer Wingen
    • Ji LiToshiaki NonakaAyako OgawaHans-Rolf DübalBarbara HornungWolfgang SchmidtRainer Wingen
    • G02F1/13C07D211/46C07D211/70C09K19/34C09K19/40C09K19/54C09K19/58C09K19/52C07D211/04C07D401/02
    • C09K19/54C07D211/04C07D211/06C07D211/08C07D211/18C07D211/46C09K19/0225C09K19/0266C09K19/3483C09K19/58Y10T428/10
    • 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.
    • 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。
    • 10. 发明授权
    • Active matrix displays having high contrast values
    • 主动矩阵显示具有高对比度值
    • US06482479B1
    • 2002-11-19
    • US09626217
    • 2000-07-26
    • Hans-Rolf DübalToshiaki NonakaRainer Wingen
    • Hans-Rolf DübalToshiaki NonakaRainer Wingen
    • C09K1902
    • C09K19/3458C07D239/34C09K19/0225Y10T428/10
    • 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.
    • 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。