Ester compounds, liquid crystal compositions and liquid crystal display devices
    31.
    发明授权
    Ester compounds, liquid crystal compositions and liquid crystal display devices 有权
    酯化合物,液晶组合物和液晶显示装置

    公开(公告)号:US06685995B1

    公开(公告)日:2004-02-03

    申请号:US09582920

    申请日:2000-07-07

    IPC分类号: C09K1930

    摘要: Liquid crystalline compounds suitable for driving at a low voltage and at a wide temperature range, and suitable for high speed response, liquid crystal compositions comprising the compound, and liquid crystal display devices comprising the liquid crystal composition. The crystalline compounds are ester compounds expressed by the general formula (1) wherein R1 represents e.g. a hydrogen atom; A1 to A5 each independently represent e.g. 1,4-cyclohexylene, 1,4-phenylene, 1-cyclohexene-1,4-diyl, 3-cyclohexene-1,4-diyl, 1-sila-1,4-cyclohexylene, or 4-sila-1,4-cyclohexylene; bonding groups Za to Zd each independently represent e.g. a single bond, —CH2—, —O—, —C≡C—, or an alkylene group or alkenylene group having 2 to 4 carbon; bonding group Ze represents e.g. a single bond, an alkylene group or alkenylene group having 1 to 10 carbon atoms; n1 to n3 are each independently 0 or 1, but n1≦n2≦n3; Y1 and Y2 each independently represent oxygen atom or sulfur atom; R2 represents e.g. a halogen atom, a straight chain or branched alkyl group having 1 to 20 carbon atoms, or straight chain or branched alkenyl group having 2 to 20 carbon atoms; provided that when A5 represents unsubstituted 1,4-phenylene, then Zd is a single bond, and A4 is not 1,4-phenylene; and each atom which constitutes this compound may be replaced by its isotope.

    摘要翻译: 适用于在低电压和宽温度范围内驱动并适合于高速响应的液晶化合物,包含该化合物的液晶组合物和包含该液晶组合物的液晶显示装置。 结晶化合物是由通式(1)表示的酯化合物,其中R1表示例如。 氢原子; A1至A5各自独立地表示例如。 1,4-亚环己基,1,4-亚苯基,1-环己烯-1,4-二基,3-环己烯-1,4-二基,1-硅基-1,4-亚环己基或4-硅基-1,4 环己烯 键合基Za至Zd各自独立地表示例如。 单键,-CH 2 - , - O - , - C = C-,或具有2〜4个碳的亚烷基或亚烯基; 键合基团Ze代表例如。 单键,碳原子数1〜10的亚烷基或亚链烯基; n1〜n3各自独立地为0或1,但n1 <= N2&LE; N3; Y1和Y2各自独立地表示氧原子或硫原子; R2表示例如 卤素原子,碳原子数1〜20的直链或支链烷基,碳原子数2〜20的直链或支链烯基; 条件是当A5表示未取代的1,4-亚苯基时,则Zd为单键,A4不为1,4-亚苯基; 并且构成该化合物的每个原子可以被其同位素代替。

    Liquid crystal compositions and liquid crystal display elements
    32.
    发明授权
    Liquid crystal compositions and liquid crystal display elements 失效
    液晶组合物和液晶显示元件

    公开(公告)号:US6096242A

    公开(公告)日:2000-08-01

    申请号:US39390

    申请日:1998-03-16

    CPC分类号: C09K19/42 C09K19/46

    摘要: Liquid crystal compositions comprising at least two components wherein the first component is at least one selected from propiolonitrile derivatives containing 2-4 rings and the second component is at least one selected from the liquid crystalline compounds containing 2-4 rings and a saturated or unsaturated hydrocarbon group of up to 10 carbons. The propiolonitrile derivatives of the first component are those wherein each ring is trans-1,4-cyclohexylene, 1,4-phenylene, 2,6-dioxan-1,4-diyl or 2,6-pyrimidine-1,4-diyl, each bridge between the rings is ethylene, carbonyloxy or covalent bond and the terminal group at one end is hydrocarbon group of up to 10 carbons which may contain at least one ether bond in the chain.

    摘要翻译: 包含至少两种组分的液晶组合物,其中第一组分是选自含有2-4个环的丙炔腈衍生物中的至少一种,第二组分是选自含有2-4个环和饱和或不饱和烃的液晶化合物中的至少一种 最多10个碳组。 第一组分的丙炔腈衍生物是其中每个环是反式-1,4-亚环己基,1,4-亚苯基,2,6-二恶烷-1,4-二基或2,6-嘧啶-1,4-二基 环之间的每个桥是乙烯,羰氧基或共价键,并且一端的末端是至多10个碳的烃基,其可以在链中含有至少一个醚键。

    Liquid crystal compositions and liquid crystal display devices
    33.
    发明授权
    Liquid crystal compositions and liquid crystal display devices 有权
    液晶组合物和液晶显示装置

    公开(公告)号:US06214256B1

    公开(公告)日:2001-04-10

    申请号:US09388431

    申请日:1999-09-02

    IPC分类号: C09K1930

    CPC分类号: C09K19/42

    摘要: A liquid crystal composition is disclosed which comprises: as a first component at least one of the compounds of the following formulas (1-1) and (1-2); as a second component at least one of the compounds of the following formula (2); as a third component at least one of the compounds of the following formulas (3-1) and (3-2); and as a fourth component at least one of the compounds of the following formulas (4-1) to (4-3)

    摘要翻译: 公开了一种液晶组合物,其包含:作为第一组分的至少一种下式(1-1)和(1-2)的化合物;作为第二组分,至少一种下式的化合物( 2);作为第三成分的至少一种下式(3-1)和(3-2)的化合物; 以及下述式(4-1)〜(4-3)中的至少一种化合物的第四成分,

    Liquid crystal compositions and liquid crystal display devices
    34.
    发明授权
    Liquid crystal compositions and liquid crystal display devices 有权
    液晶组合物和液晶显示装置

    公开(公告)号:US06335064B1

    公开(公告)日:2002-01-01

    申请号:US09641916

    申请日:2000-08-21

    IPC分类号: C09K1930

    CPC分类号: C09K19/3001 Y10T428/10

    摘要: A novel liquid crystal composition comprising three components: at least one difluoro-oxymethane derivative, at least one trifluorophenyl derivative and a monofluorophenyl dervivative. The composition exhibits a high voltage holding ratio at high temperatures, sufficiently low threshold voltage and large optical anisotropy, while satisfying general characteristics required for the AM-LCD display mode.

    摘要翻译: 包含三种组分的新型液晶组合物:至少一种二氟 - 氧代甲烷衍生物,至少一种三氟苯基衍生物和单氟苯基衍生物。 组合物在高温下表现出高电压保持率,足够低的阈值电压和大的光学各向异性,同时满足了AM-LCD显示模式所需的一般特性。

    Liquid crystal compositions and liquid crystal display devices
    35.
    发明授权
    Liquid crystal compositions and liquid crystal display devices 有权
    液晶组合物和液晶显示装置

    公开(公告)号:US6162372A

    公开(公告)日:2000-12-19

    申请号:US388443

    申请日:1999-09-02

    摘要: A liquid crystal composition is disclosed which comprises three components. The first component comprises at least one of the compounds of the following formulas (1-1) and (1-2). The second component comprises at least one of the compounds of the following formula (2). The third component comprises at least one of the compounds of the following formulas (3-1) to (3-4). ##STR1## Each symbol in formulas (1-1) to (3-4) is defined in the specification. The liquid crystal composition has low threshold voltage and high stability to hear and ultraviolet rays while satisfying general characteristics required for the STN display mode.

    摘要翻译: 公开了一种包含三个组分的液晶组合物。 第一组分包含下式(1-1)和(1-2)中的至少一种化合物。 第二组分包含至少一种下式(2)的化合物。 第三组分包含下式(3-1)至(3-4)中的至少一种化合物。 公式(1-1)至(3-4)中的每个符号在说明书中定义。 液晶组合物在满足STN显示模式所需的一般特性的同时具有低的阈值电压和高的听觉和紫外线稳定性。

    Liquid crystal composition and electro-optic display device
    36.
    发明授权
    Liquid crystal composition and electro-optic display device 失效
    液晶组成和电光显示装置

    公开(公告)号:US5776366A

    公开(公告)日:1998-07-07

    申请号:US741720

    申请日:1996-10-31

    摘要: A chiral, nematic liquid crystal composition suitable to STN-LCD, having superior steepness, rapid response and being able to prevent occurrence of high order and low order domain of LCD, which composition contains as a first component, at least one compound expressed by the formula (1) ##STR1## as a second component, at least one compound expressed by the formula (2) ##STR2## and as a third component, at least one compound of benzonitrile group, ##STR3## and further having a chiral dopant as a fourth component. In the above formulas, R.sup.1 and R.sup.2 each represent a linear alkyl group of 1 to 10 carbon atoms, A and B each represent trans-1,4-cyclohexylene or 1,4-phenylene, and R.sup.3 represents a linear alkyl group of 1 to 10 carbon atoms, or a group wherein an optional --CH.sub.2 -- or two or more not adjacent --CH.sub.2 --s present in the above group are replaced by --O-- or --CH=CH--; X.sup.1 and X.sup.2 each independently represent H or F; C represents --COO--, --C.sub.2 H.sub.4 --, trans-1,4-cyclohexylene or 1,4-phenylene; and n represents 0 or 1, and as a fourth component, a chiral dopant in a quantity in which a ratio (d/p) of the thickness (d.mu.m) of a liquid crystal layer in a liquid crystal cell to be filled with the liquid crystal composition to the helical pitch thereof (p.mu.m) is 0.03 to 2.0.

    摘要翻译: 适用于STN-LCD的手性向列型液晶组合物,其具有优异的陡度,快速响应性并且能够防止LCD的高阶和低阶畴的发生,该组合物含有作为第一组分的至少一种化合物 式(1)作为第二组分的至少一种化合物作为第二组分,至少一种由式(2)表示的化合物(2)和作为第三组分的至少一种苄腈基化合物,&lt; IMAGE&gt; 3),并且还具有手性掺杂剂作为第四组分。 在上式中,R 1和R 2各自表示1〜10个碳原子的直链烷基,A和B各自表示反式-1,4-亚环己基或1,4-亚苯基,R3表示1〜 10个碳原子,或其中存在于上述基团中的任选的-CH 2 - 或两个或更多个不相邻的-CH 2 -S取代为-O-或-CH = CH-的基团; X1和X2各自独立地表示H或F; C表示-COO - , - C 2 H 4 - ,反式-1,4-亚环己基或1,4-亚苯基; n表示0或1,作为第四成分的手性掺杂剂,其中液晶单元中待填充的液晶层的厚度(dμm)的比值(dμm) 液晶组合物的螺旋间距(μm)为0.03〜2.0。

    Liquid crystal compounds exhibiting negative anisotropy of permittivity
    37.
    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。

    Liquid crystal composition and liquid crystal display device
    38.
    发明授权
    Liquid crystal composition and liquid crystal display device 失效
    液晶组成和液晶显示装置

    公开(公告)号:US5874022A

    公开(公告)日:1999-02-23

    申请号:US927808

    申请日:1997-09-12

    CPC分类号: C09K19/44 C09K19/42

    摘要: The present invention provides a liquid crystal composition satisfying many characteristics required to liquid crystal compositions for AM-LCD, having a preferable .DELTA.n value in proportion to the cell thickness, and having very low threshold value suitable for driving at low voltage.The liquid crystal composition of the present invention comprises as the first constituent at least one compound selected from the group consisting of compounds represented by particular formula (I) and as the second constituent at least one compound selected from the group consisting of compounds represented by particular formulas (II-1)-(II-7). ##STR1##

    摘要翻译: 本发明提供了一种满足AM-LCD液晶组合物所需要的许多特性的液晶组合物,其具有与单元厚度成比例的优选的DELTA n值,并且具有适合于在低电压下驱动的非常低的阈值。 本发明的液晶组合物作为第一组分包含至少一种选自由特定式(I)表示的化合物的化合物和作为第二组分的至少一种化合物,所述化合物选自由特定的 式(II-1) - (II-7)。 (II-1)<图像>(II-2)<图像>(II-2)<图像>(II-3)<图像>(II-4)<图像>(II-5)<图像> (II-6)<图像>(II-7)

    Liquid crystal composition and liquid crystal display element
    39.
    发明授权
    Liquid crystal composition and liquid crystal display element 有权
    液晶组成和液晶显示元件

    公开(公告)号:US06315922B1

    公开(公告)日:2001-11-13

    申请号:US09551643

    申请日:2000-04-18

    IPC分类号: C09K1934

    CPC分类号: C09K19/42

    摘要: The present invention provides a liquid crystal composition comprising a component A being at least one compound selected from the group of compounds represented by Formulas (1-1) and (1-2) in the specification and a component B being at least one compound selected from the group of compounds represented by Formulas (2-1), (2-2), (2-3), (2-4) and (2-5) in the specification. This liquid crystal composition satisfies general characteristics required for a liquid crystal display element of an active matrix mode (AM-LCD).

    摘要翻译: 本发明提供了一种液晶组合物,其包含组分A,其为说明书中选自由式(1-1)和(1-2)表示的化合物组中的至少一种化合物,组分B为至少一种选自 来自本说明书中由式(2-1),(2-2),(2-3),(2-4)和(2-5)表示的化合物组。 该液晶组合物满足有源矩阵模式(AM-LCD)的液晶显示元件所需的一般特性。