Difluorovinyl compound, liquid crystal composition and liquid crystal display
    82.
    发明授权
    Difluorovinyl compound, liquid crystal composition and liquid crystal display 有权
    二氟乙烯基化合物,液晶组合物和液晶显示

    公开(公告)号:US06649227B2

    公开(公告)日:2003-11-18

    申请号:US09899169

    申请日:2001-07-06

    IPC分类号: C09K1934

    摘要: Provided are liquid crystalline compounds having a wide liquid crystal phase temperature range, low viscosity, a large elastic constant ratio K33/K11 and excellent solubility at low temperature, a liquid crystal composition using the same and a liquid crystal display. Preferred compounds are difluorovinyl compounds represented by Formula (1): wherein Y1, represents H or a straight chain or branched alkyl group having 1 to 10 carbon atoms, and optional —CH2— in the above alkyl group may be replaced by —O— or —CH═CH—, but —O— is not adjacent to each other, and at least one H in Y1 may be substituted with halogen or a cyano group: A1, A2, A3 and A4 each independently represent 1,4-cyclohexylene in which optional —CH2— which is not adjacent to each other may be replaced by —O—, 1,4-phenylene in which optional H may be substituted with halogen, and a single bond, in which at least two of A1, A2, A3 and A4 have the ring structure described above, and at least one of them is 1,4-cyclohexylene in which —CH2— is replaced by —O—; Z1, Z2 and Z3 each independently represent a single bond, —(CH2)2—, —CH═CH—, —(CH2)4—, —O(CH2)3— or —(CH2)3O—; n represents 0 or an integer of 1 to 10, provided that when any of A1, A2, A3 and A4 is 1,4-phenylene, Z1, Z2 and Z3 are single bonds, and among them, when A1 is 1,3-dioxane-2,5-diyl and A2 is 1,4-phenylene and when A3 is 1,4-cyclohexylene and A4 is a single bond, Y1 is H, and n is not 0.

    摘要翻译: 本发明提供具有宽液晶相温度范围,低粘度,大弹性常数比K33 / K11和低温溶解度优异的液晶化合物,使用该液晶组合物的液晶组合物和液晶显示器。 优选的化合物是由式(1)表示的二氟乙烯基化合物:其中Y 1表示H或具有1至10个碳原子的直链或支链烷基,并且上述烷基中任选的-CH 2 - 可以被 - O-或-CH = CH-,但-O-不彼此相邻,并且Y 1中的至少一个H可以被卤素或氰基取代:A 1,A 2, A 3和A 4各自独立地表示1,4-亚环己基,其中不相邻的任选的-CH 2可以被-O-,1,4-亚苯基代替,其中任选的H可以被取代 具有卤素和单键,其中A 1,A 2,A 3和A 4中的至少两个具有上述环结构,并且它们中的至少一个为1,4 - 环己烯,其中-CH 2 - 被-O-取代; Z 1,Z 2和Z 3各自独立地表示单键, - (CH 2)2 - , - CH = CH - , - (CH 2)4 - , - O(CH 2)3 - (CH2)3O-; n表示0或1〜10的整数,条件是当A 1,A 2,A 3和A 4中的任何一个为1,4-亚苯基时,Z 1,Z 2 且Z 3为单键,其中A 1为1,3-二恶烷-2,5-二基,A 2为1,4-亚苯基,当A 3为1时, ,4-环亚己基和A 4为单键,Y 1为H,n为0。

    Cyclohexane derivatives, liquid crystal compositions comprising the same and liquid crystal display devices
    83.
    发明授权
    Cyclohexane derivatives, liquid crystal compositions comprising the same and liquid crystal display devices 有权
    环己烷衍生物,含有它们的液晶组合物和液晶显示装置

    公开(公告)号:US06500503B2

    公开(公告)日:2002-12-31

    申请号:US09842254

    申请日:2001-04-26

    IPC分类号: C09K1930

    摘要: Liquid crystalline compounds are disclosed which have large dielectric anisotropy and relatively low viscosity, and which are represented by formula (1) wherein R1 represents hydrogen or C1-C15 alkyl in which one or more non-adjacent methylene may be replaced by oxygen, sulfur or —CH═CH— and one or more hydrogen may be replaced by halogen; R2 represents hydrogen, cyano, halogen or C1-C15 alkyl in which one or more non-adjacent methylene may be replaced by oxygen, sulfur or —CH═CH— and one or more hydrogen may be replaced by halogen; L represents halogen or hydrogen; A1, A2, A4 and A5 each independently represent trans-1,4-cyclohexylene or 1,4-phenylene, one or more —CH2— in the trans-1,4-cyclohexylene may be replaced by oxygen or sulfur, one or more ═CH— in the 1,4-phenylene may be replaced by nitrogen, and one or more hydrogen in the 1,4-phenylene ring may be replaced by halogen; A3represents trans-1,4-cyclohexylene in which one or more —CH2— may be replaced by oxygen or sulfur; Z1,Z2,Z3 and Z4 each independently represent —COO—, —OCO—, —CH2CH2—, —(CH2)4—, —CH2O —, —OCH2—, —CF2O—, —OCF2— or a single bond; Q represents —CF2CH2— or —CH2CF2—; and k, l, m and n each independently represent 0 or 1 with the condition of k+l+m+n≦2. Further, liquid crystal compositions comprising at least one liquid crystalline compound of formula (1) and liquid crystal display devices composed of the compositions are disclosed.

    摘要翻译: 公开了具有大介电各向异性和相对低粘度的液晶化合物,其由式(1)表示,其中R 1表示氢或C 1 -C 15烷基,其中一个或多个不相邻的亚甲基可被氧,硫或 -CH = CH-,一个或多个氢可被卤素取代; R 2表示氢,氰基,卤素或C 1 -C 15烷基,其中一个或多个不相邻的亚甲基可被氧,硫或-CH = CH-代替,并且一个或多个氢可被卤素取代; L表示卤素或氢; A1,A2,A4和A5各自独立地表示反式-1,4-亚环己基或1,4-亚苯基,反式-1,4-亚环己基中的一个或多个-CH 2 - 可被氧或硫代替,一个或多个 = 1,4-亚苯基中的CH-可以被氮代替,1,4-亚苯基环中的一个或多个氢可被卤素取代; A3表示反式-1,4-亚环己基,其中一个或多个-CH 2 - 可被氧或硫取代; Z 1,Z 2,Z 3和Z 4各自独立地表示-COO - , - OCO - , - CH 2 CH 2 - , - (CH 2)4 - , - CH 2 O - , - OCH 2 - , - CF 2 O-,-OCF 2-或单键; Q表示-CF 2 CH 2 - 或-CH 2 CF 2 - ; 并且k,l,m和n各自独立地表示0或1,条件为k + 1 + m + n <= 2。 此外,公开了包含至少一种式(1)的液晶化合物和由该组合物组成的液晶显示装置的液晶组合物。

    Liquid crystal composition
    85.
    发明授权
    Liquid crystal composition 失效
    液晶组成

    公开(公告)号:US5560865A

    公开(公告)日:1996-10-01

    申请号:US435652

    申请日:1995-05-05

    CPC分类号: C09K19/42 C09K19/46

    摘要: A liquid crystal composition containing a first component (I), a second component ((II-1) or (II-2)), a third component ((III), (IV) or (V)), and a fourth component ((VI) or (VII)): ##STR1## wherein the variables are defined in the specification.

    摘要翻译: 含有第一成分(I),第二成分((II-1)或(II-2)),第三成分((III),(IV)或(V))的第四成分 (Ⅵ)或(Ⅶ)):其中变量定义在(Ⅵ)或(Ⅶ))中: 规格。

    Liquid crystal composition and a liquid crystal display element using
the same
    86.
    发明授权
    Liquid crystal composition and a liquid crystal display element using the same 失效
    液晶组合物和使用其的液晶显示元件

    公开(公告)号:US5645759A

    公开(公告)日:1997-07-08

    申请号:US524441

    申请日:1995-09-06

    CPC分类号: C09K19/46 C09K19/3001

    摘要: A liquid crystal composition having a low threshold voltage and a suitably large optical anisotropy, while retaining a high specific resistance value, is provided,which composition is composed of compounds expressed by the formulas (1), (2) and (4): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.4 each represent an alkyl group of 1 to 10C; n represents 0 or 1; A.sup.1, A.sup.2, A.sup.3 and A.sup.4 represent trans-1,4-cyclohexylene or 1,4-phenylene; Z.sup.1, Z.sup.3 and Z.sup.4 represent --C.sub.2 H.sub.4 -- or a single bond; and X.sup.1, X.sup.4 and X.sup.5 represent H or F,use of which composition can realize an active matrix type liquid crystal display element of a low drive voltage, a low power consumption and a high speed response.

    摘要翻译: 提供具有低阈值电压和适当大的光学各向异性同时保持高电阻值的液晶组合物,该组成由式(1),(2)和(4)表示的化合物组成:本文 R1,R2和R4各自表示1〜10的烷基; n表示0或1; A1,A2,A3和A4表示反式-1,4-亚环己基或1,4-亚苯基; Z 1,Z 3和Z 4表示-C 2 H 4 - 或单键; X1,X4和X5表示H或F,使用哪种组合可以实现低驱动电压,低功耗和高速响应的有源矩阵型液晶显示元件。

    Liquid crystal compositions
    87.
    发明授权
    Liquid crystal compositions 失效
    液晶组成

    公开(公告)号:US5653912A

    公开(公告)日:1997-08-05

    申请号:US435614

    申请日:1995-05-05

    CPC分类号: C09K19/46

    摘要: Disclosed are liquid crystal compositions each comprising a first component (formula (I)), a second component (formula (II)), a third component (formulae (III) to (V)) and a fourth component (formulae (VI) and (VII)): ##STR1## R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.9 each are a C.sub.1-8 alkyl; n, m, p, q and r each are 0 or 1; R.sub.8 and R.sub.10 each are a C.sub.1-8 alkyl or alkoxy, or a C.sub.2-8 alkoxymethyl; A.sub.1 is a 1,5-cyclohexylene, 1,4-phenylene or 1,3-dioxane-2,5-diyl; A.sub.2 and A.sub.5 each are a 1,4-cyclohexylene, 1,4-phenylene or pyrimidine-2,5-diyl; A.sub.3, A.sub.4, A.sub.6 and A.sub.7 each are a 1,4-cyclohexylene or 1,4-phenylene; Z.sub.1, Z.sub.3 and Z.sub.6 each are --COO-- or a single bond; Z.sub.2 and Z.sub.4 each are --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH-- or a single bond; Q and Z.sub.5 each are --CH.sub.2 CH.sub.2 -- or a single bond; L, X and T each are F or H; S is F, Cl or CF.sub.3. Also provided are electro-optical display devices containing any of these compositions, which have rapid response and can be driven even at a low voltage. The temperature-dependence of the driving voltage for the devices is reduced.

    摘要翻译: 公开了各自包含第一组分(式(I)),第二组分(式(II)),第三组分(式(III)至(V))和第四组分(式(VI)和 (VII))VII:R1,R2,R3,R4,R5,R6,R7和R9各自为 C 1-8烷基; n,m,p,q和r各自为0或1; R8和R10各自为C1-8烷基或烷氧基,或C2-8烷氧基甲基; A1是1,5-亚环己基,1,4-亚苯基或1,3-二恶烷-2,5-二基; A2和A5各自为1,4-亚环己基,1,4-亚苯基或嘧啶-2,5-二基; A3,A4,A6和A7各自为1,4-亚环己基或1,4-亚苯基; Z1,Z3和Z6各自为-COO-或单键; Z2和Z4各自为-CH2-CH2-,-CH = CH-或单键; Q和Z5各自为-CH 2 CH 2 - 或单键; L,X和T各自为F或H; S是F,Cl或CF 3。 还提供了包含任何这些组合物的电光显示装置,其具有快速响应并且即使在低电压下也可以被驱动。 器件的驱动电压的温度依赖性降低。

    Liquid crystal composition and a liquid crystal display element using
the same
    88.
    发明授权
    Liquid crystal composition and a liquid crystal display element using the same 失效
    液晶组合物和使用其的液晶显示元件

    公开(公告)号:US5618466A

    公开(公告)日:1997-04-08

    申请号:US523916

    申请日:1995-09-06

    CPC分类号: C09K19/46

    摘要: A liquid crystal composition used for a display element using TN (twisted nematic) mode or STN (super-twisted nematic) mode, having reduced threshold voltage and temperature dependency is provided,which composition is constituted by the following formulas (1) and (2): ##STR1## wherein R.sup.1 and R.sup.2 are an alkyl group of 1 to 10C; A.sup.1 and A.sup.2 each independently are 1,4-cyclohexylene or 1,4-penylene;n is 0 or 1; and X is H or F, andwhen the liquid crystal composition of the present invention is used, it is possible to realize a liquid crystal display element superior in low voltage drive, low power consumption and contrast.

    摘要翻译: 提供了一种用于具有降低的阈值电压和温度依赖性的TN(扭曲向列)模式或STN(超扭曲向列)模式的显示元件的液晶组合物,其组成由下式(1)和(2 ):其中R 1和R 2为1至10的烷基;(2)其中R 1和R 2为1至10的烷基; A1和A2各自独立地为1,4-亚环己基或1,4-亚苯基; n为0或1; X是H或F,当使用本发明的液晶组合物时,可以实现低电压驱动,低功耗和对比度优异的液晶显示元件。

    Liquid crystal composition
    89.
    发明授权
    Liquid crystal composition 失效
    液晶组成

    公开(公告)号:US5534189A

    公开(公告)日:1996-07-09

    申请号:US493156

    申请日:1995-06-21

    CPC分类号: C09K19/3001

    摘要: Provided is a liquid crystal composition for active matrix addressed display mode which comprises: a first component consisting of at least one compound expressed by formula (I) and a second component consisting of at least one compound selected from the group consisting of compounds expressed by formula (II), (III) or (IV): ##STR1## wherein R.sup.1 and R.sup.2 each represent independently an alkyl group of 1 to 10 carbon atoms in which one or two non-adjacent methylene group(s) may be substituted by an oxygen atom; R.sup.3 represents an alkyl group of 1 to 10 carbon atoms; Z.sup.0, Z.sup.1 and Z.sup.2 each represent independently --CH.sub.2 CH.sub.2 13 or a single bond; and Q.sup.0 represents H or F; Q.sup.1 and Q.sup.2 each represent independently H, F or Cl; L.sup.1 and L.sup.2 each represent independently H or F; X represents F, Cl, CF.sub.3, OCF.sub.3, CHF.sub.2, OCHF.sub.2, OCF.sub.2 Cl or OCF.sub.2 CHFCF.sub.3 ; and n represents an integer of 1 or 2.

    摘要翻译: 本发明提供一种用于有源矩阵寻址显示模式的液晶组合物,其包含:由至少一种由式(I)表示的化合物和由至少一种选自由式 (II),(III)或(IV)所示的化合物:其中R 1和R 2各自独立地表示1〜10的烷基, 一个或两个不相邻的亚甲基可被氧原子取代的碳原子; R3表示1〜10个碳原子的烷基; Z0,Z1和Z2各自独立地表示-CH2CH213或单键; Q0表示H或F; Q1和Q2各自独立地表示H,F或Cl; L1和L2各自独立地表示H或F; X表示F,Cl,CF 3,OCF 3,CHF 2,OCHF 2,OCF 2 Cl或OCF 2 FFCF 3; n表示1或2的整数。

    Liquid crystal compounds exhibiting negative anisotropy of permittivity
    90.
    发明授权
    Liquid crystal compounds exhibiting negative anisotropy of permittivity 有权
    显示负介电常数各向异性的液晶化合物

    公开(公告)号:US06576303B1

    公开(公告)日:2003-06-10

    申请号:US09622826

    申请日:2000-08-24

    IPC分类号: C09K1934

    摘要: Novel liquid crystal compound having a negative and absolutely large value of dielectric anisotropy, being excellent in compatibility with other liquid crystalline compounds at a low temperature and being stable chemically and physically, as well as a liquid crystal composition comprising this compound, and a liquid crystal display device comprising this liquid crystal composition are provided, said compound is expressed by the general formula (1): R1—A1—B1—A2—B2—A3—B3—Z—B4—A4—R2  (1) wherein A1, A2, A3 and A4 represent a single bond, 1,4-cyclohexylene, 1,4-phenylene which may be substituted with a fluorine atom(s) or the like; B1, B2, B3 and B4 represent a single bond, 1,2-ethylene, 1,2-ethenylene, 1,2-ethynylene, oxymethylene, methyleneoxy or the like; R1 and R2 represent an alkyl group having 1 to 10 carbon atoms or the like; and Z represents (I) to (VI): wherein X represents H or F, and Y represents difluoromethyl group, difluoromethoxy group, formyl group or carboxyl group.

    摘要翻译: 新颖的介电各向异性值极高的液晶化合物,与其它液晶化合物在低温下的相容性优异,化学和物理性质稳定,以及包含该化合物的液晶组合物和液晶 提供了包含该液晶组合物的显示装置,所述化合物由通式(1)表示:其中A1,A2,A3和A4表示单键,可以被取代的1,4-亚环己基,1,4-亚苯基 与氟原子等; B1,B2,B3和B4表示单键,1,2-亚乙基,1,2-亚乙烯基,1,2-亚乙炔基,甲醛亚甲基,亚甲氧基等; R1和R2表示碳原子数1〜10的烷基等; Z表示(I)〜(VI):其中X表示H或F,Y表示二氟甲基,二氟甲氧基,甲酰基或羧基。