Liquid crystal medium and electro-optic liquid crystal displays
    1.
    发明授权
    Liquid crystal medium and electro-optic liquid crystal displays 有权
    液晶介质和电光液晶显示器

    公开(公告)号:US06495218B1

    公开(公告)日:2002-12-17

    申请号:US09555955

    申请日:2000-06-07

    IPC分类号: C09K1930

    摘要: Provided is a liquid crystal medium for an electro-optical liquid crystal display of an IPS mode which does not cause burning and which is suitable for achieving a relatively low threshold voltage and a short response time. The liquid crystal medium for an IPS mode display comprising 5 to 37.5% by weight of the first component (compound of Formula I) and 5 to 62.5% by weight of the second component (compound of Formula II) or the liquid crystal medium comprising 100% by weight of the first component, 5 to 62.5% by weight of the second component and 5 to 37.5% by weight of third component (compound of Formula III): wherein R1 to R3 represent a C1 to C10 alkyl group, an alkoxy group or an oxalkyl group (containing 1 to 4 oxygen atoms), or a C2 to C10 alkenyl group; X represents transcyclohexylene or phenylene; A represents —CO—O— or a single bond; and Y1 represents a hydrogen atom or a fluorine atom.

    摘要翻译: 本发明提供一种IPS模式的电光液晶显示器的液晶介质,其不引起燃烧,适合于实现相对低的阈值电压和较短的响应时间。用于IPS模式显示器的液晶介质包括 5至37.5重量%的第一组分(式I化合物)和5至62.5重量%的第二组分(式II化合物)或包含100重量%的第一组分的液晶介质5至 62.5重量%的第二组分和5-37.5重量%的第三组分(式III化合物):其中R1至R3表示C1至C10烷基,烷氧基或氧代烷基(含有1至4个氧 原子)或C2〜C10烯基; X表示反式环亚己基或亚苯基; A表示-CO-O-或单键; Y 1表示氢原子或氟原子。

    Liquid crystal composition and a liquid crystal display device
containing the same
    2.
    发明授权
    Liquid crystal composition and a liquid crystal display device containing the same 失效
    液晶组合物和含有该液晶组合物的液晶显示装置

    公开(公告)号:US5807499A

    公开(公告)日:1998-09-15

    申请号:US697169

    申请日:1996-08-20

    CPC分类号: C09K19/46 C09K19/0208

    摘要: A liquid crystal material for a STN display device having a low viscosity, steep electro-optical response characteristics, and a small temperature dependence of a threshold voltage is provided by a LC composition comprising: at least one first optically active compound having a negative temperature dependence of cholesteric helical pitch induced when added singly to a nematic liquid crystal and at least one second optically active compound having the same helical sense to the first optically active compound and a positive temperature dependence of a cholesteric helical pitch induced when added singly to a nematic liquid crystal, characterized in that the composition has a helical pitch at 25.degree. C. of 6-15 .mu.m, a negative temperature dependence of a helical pitch and a rate of change of a helical pitch of -0.05 to 0 .mu.m/.degree. C. between 10.degree. and 50.degree. C.

    摘要翻译: 一种用于具有低粘度,陡峭的电光响应特性和阈值电压的较小温度依赖性的STN显示装置的液晶材料通过LC组合物提供,该组合物包括:至少一种具有负温度依赖性的第一光学活性化合物 当向向列型液晶中单独添加时引起的胆固醇螺旋音调和对第一光学活性化合物具有相同螺旋感的至少一种第二光学活性化合物以及当向向列相液体单独添加时引起的胆固醇螺旋音调的正温度依赖性 其特征在于,组合物在25℃下的螺距为6-15μm,螺旋间距的负温度依赖性和螺旋间距的变化率为-0.05至0μm/℃ 10〜50℃

    Liquid crystal composition and liquid crystal display element
    3.
    发明授权
    Liquid crystal composition and liquid crystal display element 失效
    液晶组成和液晶显示元件

    公开(公告)号:US5762824A

    公开(公告)日:1998-06-09

    申请号:US748512

    申请日:1996-11-08

    CPC分类号: C09K19/60 C09K19/603

    摘要: A guest-host liquid crystal is provided by adding a quinophthalone group pigment or an anthraquinone group pigment as a non-azoic group dichroic pigment, to a host liquid crystal composition composed mainly of a halogenated benzene derivative, and having a high voltage-holding ratio of .DELTA..di-elect cons. of 4.5 to 7.5. By combining a host liquid crystal composition composed mainly of a halogenated benzene derivative and having a high voltage-holding ratio of .DELTA..di-elect cons. of 4.5 to 7.5, with a dichroic pigment having a specified, molecular structure, there is exhibited an effectiveness that it is possible to obtain a guest-host liquid crystal active matrix display element of 3.3V drive having stability under high temperature.

    摘要翻译: 通过将喹酞酮颜料或蒽醌类颜料作为非偶氮基二色性颜料添加到主要由卤代苯衍生物构成的主体液晶组合物中,并具有高电压保持率,从而提供客体主体液晶 的DELTA +531的4.5到7.5。 通过将主要由卤代苯衍生物组成的具有4.5〜7.5的高电压保持率的DELTA +531的主体液晶组合物与具有规定分子结构的二色性颜料组合,表现出其有效性 可以获得在高温下具有稳定性的3.3V驱动的宾主液晶有源矩阵显示元件。

    Liquid crystal composition and liquid crystal display device
    5.
    发明授权
    Liquid crystal composition and liquid crystal display device 有权
    液晶组成和液晶显示装置

    公开(公告)号:US07563492B2

    公开(公告)日:2009-07-21

    申请号:US11598633

    申请日:2006-11-14

    IPC分类号: C09K19/34 C09K19/30 C09K19/12

    摘要: A liquid crystal composition having a nematic phase that includes three components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), the second component is at least one compound selected from the group of compounds represented by formulas (2-1) to (2-3), and the third component is at least one compound selected from the group of compounds represented by formula (3): wherein R1, R2 and R4 are each independently alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R3 is fluorine, alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R5 is fluorine, chlorine, alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R6 is alkenyl having 2 to 12 carbons; Y1 is fluorine, chlorine or trifluoromethoxy; X1, X2, X3 and X4 are each independently hydrogen or fluorine; and one of X5 and X6 is fluorine, and the other is hydrogen.

    摘要翻译: 一种液晶组合物,其具有向列相,其包含三种成分,其中所述第一成分为选自式(1)所示的化合物的族群中的至少一种化合物,所述第二成分为选自所述化合物组中的至少一种化合物 由式(2-1)〜(2-3)表示的化合物,第三成分为选自式(3)所示的化合物中的至少一种化合物:式中,R 1,R 2和R 4各自独立地为具有1〜12的烷基 碳或碳数2〜12的烯基; R3是氟,具有1至12个碳的烷基或具有2至12个碳的烯基; R5是氟,氯,具有1至12个碳的烷基或具有2至12个碳的烯基; R6为碳数2〜12的烯基; Y1是氟,氯或三氟甲氧基; X1,X2,X3和X4各自独立地为氢或氟; X5和X6之一是氟,另一个是氢。

    Liquid crystal composition and liquid crystal display device
    6.
    发明申请
    Liquid crystal composition and liquid crystal display device 有权
    液晶组成和液晶显示装置

    公开(公告)号:US20070108409A1

    公开(公告)日:2007-05-17

    申请号:US11598633

    申请日:2006-11-14

    IPC分类号: C09K19/34 C09K19/52 C09K19/30

    摘要: A liquid crystal composition having a nematic phase that includes three components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), the second component is at least one compound selected from the group of compounds represented by formulas (2-1) to (2-3), and the third component is at least one compound selected from the group of compounds represented by formula (3): wherein R1, R2 and R4 are each independently alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R3 is fluorine, alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R5 is fluorine, chlorine, alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R6 is alkenyl having 2 to 12 carbons; Y1 is fluorine, chlorine or trifluoromethoxy; X1, X2, X3 and X4 are each independently hydrogen or fluorine; and one of X5 and X6 is fluorine, and the other is hydrogen.

    摘要翻译: 一种液晶组合物,其具有向列相,其包含三种成分,其中所述第一成分为选自式(1)所示的化合物的族群中的至少一种化合物,所述第二成分为选自所述化合物组中的至少一种化合物 由式(2-1)〜(2-3)表示的化合物,第三成分为选自式(3)表示的化合物中的至少一种化合物:其中R 1,R 2, > 2和R 4各自独立地为具有1至12个碳的烷基或具有2至12个碳的烯基; R 3是氟,具有1至12个碳的烷基或具有2至12个碳的烯基; R 5是氟,氯,具有1至12个碳的烷基或具有2至12个碳的烯基; R 6是具有2至12个碳的烯基; Y 1是氟,氯或三氟甲氧基; X 1,X 2,X 3和X 4各自独立地为氢或氟; X 5和X 6之一是氟,另一个是氢。