Liquid crystal composition, liquid crystal device and liquid crystal
apparatus
    2.
    发明授权
    Liquid crystal composition, liquid crystal device and liquid crystal apparatus 失效
    液晶组合物,液晶装置和液晶装置

    公开(公告)号:US5709818A

    公开(公告)日:1998-01-20

    申请号:US592159

    申请日:1996-01-26

    CPC分类号: C09K19/46 C09K19/34

    摘要: A liquid crystal composition contains a mesomorphic compound represented by the following formula (A): ##STR1## wherein R.sub.1 and R.sub.2 independently denote a linear or branched alkyl group having 1-18 carbon atoms; X.sub.1 denotes a single bond, --O--, --CO--O-- or --O--CO--; and A.sub.1 denotes ##STR2## and a mesomorphic compound represented by the following formula (B): ##STR3## wherein R.sub.3 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.2 and X.sub.3 independently denote a single bond, --O--, --CO--O-- or --O--CO--; m is an integer of 3-16; and A.sub.2 denotes ##STR4## or ##STR5## The liquid crystal composition may preferably be formulated as a chiral smectic liquid crystal composition. The liquid crystal composition is useful in providing a liquid crystal device using the liquid crystal composition with a good alignment characteristic, a good drive characteristic, and a high and stable contrast ratio.

    摘要翻译: 液晶组合物含有由下式(A)表示的介晶化合物:其中R 1和R 2分别表示具有1-18个碳原子的直链或支链烷基; X1表示单键,-O - , - CO-O-或-O-CO-; A1表示下式(B)表示的介晶化合物:(B)其中,R3表示碳原子数为1〜18的直链或支链烷基; X2和X3独立地表示单键,-O - , - CO-O-或-O-CO-; m为3-16的整数; 并且A2表示。液晶组合物优选配制成手性近晶液晶组合物。 液晶组合物可用于提供使用具有良好取向特性,良好的驱动特性和高且稳定的对比度的液晶组合物的液晶装置。

    Liquid crystal composition, liquid crystal device and liquid crystal
apparatus
    4.
    发明授权
    Liquid crystal composition, liquid crystal device and liquid crystal apparatus 失效
    液晶组合物,液晶装置和液晶装置

    公开(公告)号:US5710433A

    公开(公告)日:1998-01-20

    申请号:US592573

    申请日:1996-01-26

    摘要: A liquid crystal composition contains a mesomorphic compound represented by the following formula (A): ##STR1## wherein R.sub.1 and R.sub.2 independently denote a linear or branched alkyl group having 1-18 carbon atoms; X.sub.1 and X.sub.2 independently denote a single bond, --O--, --CO--O-- or --O--CO--; and A.sub.1 denotes a single bond, ##STR2## or ##STR3## and A.sub.2 denotes ##STR4## or ##STR5## and a mesomorphic compound represented by the following formula (B): ##STR6## wherein R.sub.3 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.3 and X.sub.4 independently denote a single bond, --O--, --CO--O-- or --O--CO--; m is an integer of 3-16; and A.sub.3 denotes ##STR7## or ##STR8## The liquid crystal composition may preferably be formulated as a chiral smectic liquid crystal composition. The liquid crystal composition is useful in providing a liquid crystal device using the liquid crystal composition with a good alignment characteristic, a good drive characteristic, and a high and stable contrast ratio.

    摘要翻译: 液晶组合物含有由下式(A)表示的介晶化合物:其中R 1和R 2分别表示具有1-18个碳原子的直链或支链烷基; X1和X2独立地表示单键,-O - , - CO-O-或-O-CO-; 并且A1表示单键,,A2表示,以及由下式(B)表示的介晶化合物:其中R 3表示直链或支链 具有1-18个碳原子的烷基; X3和X4独立地表示单键,-O - , - CO-O-或-O-CO-; m为3-16的整数; 并且A3表示。液晶组合物优选配制成手性近晶液晶组合物。 液晶组合物可用于提供使用具有良好取向特性,良好的驱动特性和高且稳定的对比度的液晶组合物的液晶装置。

    Liquid crystal composition, liquid crystal device and liquid crystal
apparatus
    5.
    发明授权
    Liquid crystal composition, liquid crystal device and liquid crystal apparatus 失效
    液晶组合物,液晶装置和液晶装置

    公开(公告)号:US5733475A

    公开(公告)日:1998-03-31

    申请号:US592176

    申请日:1996-01-26

    CPC分类号: C09K19/34 C09K19/46

    摘要: A liquid crystal composition contains a mesomorphic compound represented by the following formula (A): ##STR1## wherein R.sub.1 and R.sub.2 independently denote a linear or branched alkyl group having 1-18 carbon atoms; X.sub.1 denotes a single bond, --O--, --CO--O-- or --O--CO--; and A.sub.1 denotes ##STR2## and a mesomorphic compound represented by the following formula (B): ##STR3## wherein R.sub.3 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.2 denotes a single bond, --O--, --CO--O-- or --O--CO--; X.sub.3 denotes a single bond, --OCH.sub.2 --, --CO--O-- or --O--CO--; n is an integer of 3-16; and A.sub.2 denotes ##STR4## The liquid crystal composition may preferably be formulated as a chiral smectic liquid crystal composition. The liquid crystal composition is useful in providing a liquid crystal device using the liquid crystal composition with a good alignment characteristic, a good drive characteristic, and a high contrast ratio.

    摘要翻译: 液晶组合物含有由下式(A)表示的介晶化合物:其中R 1和R 2分别表示具有1-18个碳原子的直链或支链烷基; X1表示单键,-O-,-CO-O-或-O-CO-; A1表示下式(B)表示的介晶化合物:(B)其中,R3表示碳原子数为1〜18的直链或支链烷基; X2表示单键,-O - , - CO-O-或-O-CO-; X3表示单键,-OCH2-,-CO-O-或-O-CO-; n为3-16的整数; 并且A2表示E>液晶组合物优选配制为手性近晶液晶组合物。 液晶组合物可用于提供使用具有良好的取向特性,良好的驱动特性和高对比度的液晶组合物的液晶装置。

    Chiral smectic liquid crystal device and display apparatus
    6.
    发明授权
    Chiral smectic liquid crystal device and display apparatus 失效
    手性近晶体液晶装置及显示装置

    公开(公告)号:US5453861A

    公开(公告)日:1995-09-26

    申请号:US252535

    申请日:1994-06-01

    摘要: A liquid crystal device showing improved uniform alignment characteristic and switching characteristic is constituted by a pair of an upper substrate and a lower substrate, and a chiral smectic liquid crystal disposed between the upper and lower substrates. Each of the upper and lower substrates has thereon an electrode for applying a voltage to the liquid crystal and a uniaxial alignment film. The alignment films on the upper and lower substrates are provided with uniaxial alignment axes which cross each other so that the direction of crossing of the uniaxial alignment axes from the lower substrate to the upper substrate is identical to the direction of helical twist in cholesteric phase of the chiral smectic liquid crystal, and the chiral smectic liquid crystal is disposed in such an alignment state that the liquid crystal shows a pretilt angle .alpha., a cone angle H, an inclination angle .delta. of SmC.sup.* layer, and an apparent tilt angle .theta.a satisfying relationships of: H .theta.a>H/2. The crossing direction may preferably have a polarity (taken as "positive" in clockwise direction and "negative" in anticlockwise direction) which is the same as the polarity of the spontaneous polarization of the liquid crystal.

    摘要翻译: 显示出改善的均匀取向特性和切换特性的液晶装置由一对上基板和下基板以及设置在上基板和下基板之间的手性近晶液晶构成。 上基板和下基板都具有用于向液晶施加电压的电极和单轴取向膜。 上基板和下基板上的取向膜具有彼此交叉的单轴对准轴,使得单轴对准轴从下基板到上基板的交叉方向与胆甾醇相的螺旋扭转方向相同 手性近晶液晶和手性近晶液晶以这样的取向状态设置,使得液晶显示预倾角α,锥角+ E,crc / H /,SmC *层的倾斜角度δ,以及 满足以下关系的明显倾斜角θa:+ E,crc / H /α+δ和+ E,crc / H />θa> + E,crc / H / / 2。 交叉方向可以优选地具有与液晶的自发极化的极性相同的极性(顺时针方向为“正”,逆时针方向为“负”)。

    Liquid crystal composition, liquid crystal device and liquid crystal
apparatus
    7.
    发明授权
    Liquid crystal composition, liquid crystal device and liquid crystal apparatus 失效
    液晶组合物,液晶装置和液晶装置

    公开(公告)号:US5744059A

    公开(公告)日:1998-04-28

    申请号:US592180

    申请日:1996-01-26

    摘要: A liquid crystal composition contains a mesomorphic compound represented by the following formula (A): ##STR1## wherein R.sub.1 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.1 denotes a single bond, --O--, --CO--O-- or --O--CO--; X.sub.2 denotes a single bond, --OCH.sub.2 --, --CO--O-- or --O--CO--; n is an integer of 3-16; and A.sub.1, denotes ##STR2## and a mesomorphic compound represented by the following formula (B): ##STR3## wherein R.sub.2 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.3 and X.sub.4 independently denote a single bond, --O--, --CO--O-- or --O--CO--; m is an integer of 3-16; and A.sub.2 denotes ##STR4## The liquid crystal composition may preferably be formulated as a chiral smectic liquid crystal composition. The liquid crystal composition is useful in providing a liquid crystal device using the liquid crystal composition with a good alignment characteristic, a good drive characteristic, and a high contrast ratio.

    摘要翻译: 液晶组合物含有由下式(A)表示的介晶化合物:其中R 1表示具有1-18个碳原子的直链或支链烷基; X1表示单键,-O - , - CO-O-或-O-CO-; X2表示单键,-OCH2-,-CO-O-或-O-CO-; n为3-16的整数; (B)表示的介晶化合物:其中,R 2表示具有1-18个碳原子的直链或支链烷基; X3和X4独立地表示单键,-O - , - CO-O-或-O-CO-; m为3-16的整数; 并且A2表示作为手性近晶液晶组合物配制的 e。 液晶组合物可用于提供使用具有良好的取向特性,良好的驱动特性和高对比度的液晶组合物的液晶装置。

    Liquid crystal composition, liquid crystal device and liquid crystal
apparatus
    8.
    发明授权
    Liquid crystal composition, liquid crystal device and liquid crystal apparatus 失效
    液晶组合物,液晶装置和液晶装置

    公开(公告)号:US5709819A

    公开(公告)日:1998-01-20

    申请号:US592576

    申请日:1996-01-26

    CPC分类号: C09K19/46 C09K19/34

    摘要: A liquid crystal composition contains a mesomorphic compound represented by the following formula (A): ##STR1## wherein R.sub.1 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.1 denotes a single bond, --O--, --CO--O-- or --O--CO--; X.sub.2 denotes a single bond, --OCH.sub.2 --, --CO--O-- or --O--CO--; n is an integer of 3-16; and A.sub.1 denotes ##STR2## and a mesomorphic compound represented by the following formula (B): ##STR3## wherein R.sub.2 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.3 and X.sub.4 independently denote a single bond, --O--, --CO--O-- or --O--CO--; m is an integer of 3-16; and A.sub.2 denotes ##STR4## The liquid crystal composition may preferably be formulated as a chiral smectic liquid crystal composition. The liquid crystal composition is useful in providing a liquid crystal device using the liquid crystal composition with a good alignment characteristic, a good drive characteristic, and a high contrast ratio.

    摘要翻译: 液晶组合物含有由下式(A)表示的介晶化合物:其中R 1表示具有1-18个碳原子的直链或支链烷基; X1表示单键,-O - , - CO-O-或-O-CO-; X2表示单键,-OCH2-,-CO-O-或-O-CO-; n为3-16的整数; 和A1表示下式(B)表示的介晶化合物:其中R 2表示具有1-18个碳原子的直链或支链烷基; X3和X4独立地表示单键,-O - , - CO-O-或-O-CO-; m为3-16的整数; 并且A2表示作为手性近晶液晶组合物配制的 e。 液晶组合物可用于提供使用具有良好的取向特性,良好的驱动特性和高对比度的液晶组合物的液晶装置。

    Liquid crystal device and liquid crystal apparatus
    9.
    发明授权
    Liquid crystal device and liquid crystal apparatus 失效
    液晶装置和液晶装置

    公开(公告)号:US5932136A

    公开(公告)日:1999-08-03

    申请号:US733773

    申请日:1996-10-18

    摘要: A liquid crystal device is constituted by a pair of substrates each having thereon an electrode, and a smectic liquid crystal having a plurality of smectic liquid crystal layers disposed between the substrates. The smectic liquid crystal is disposed to form a first region wherein the smectic liquid crystal layers are aligned to have a layer inclination angle smaller than a calculated layer inclination angle based on a temperature-dependent layer spacing-changing characteristic or are aligned in a direction perpendicular to the substrates to form a bookshelf structure, and a second region wherein the smectic liquid crystal layers are aligned to form a chevron structure having a substantial layer inclination angle or having a layer inclination angle substantially equal to a calculated layer inclination angle based on a temperature-dependent layer spacing-changing characteristic. The liquid crystal device having the first an second regions described above is effective in improving a contrast ratio and a driven margin parameter.

    摘要翻译: 液晶装置由各自具有电极的一对基板和具有设置在基板之间的多个近晶液晶层的近晶液晶构成。 将近晶液晶设置成形成第一区域,其中基于温度依赖层间距变化特性,近晶液晶层被排列成具有小于计算的层倾斜角的层倾斜角,或者在垂直方向 以形成书架结构,以及第二区域,其中所述近晶体液晶层被排列以形成具有基本层倾斜角度的或具有基于温度的计算的层倾斜角度的层倾斜角度的人字纹结构 依赖层间距变化特征。 具有上述第一和第二区域的液晶装置在提高对比度和驱动余量参数方面是有效的。

    Liquid crystal device and liquid crystal apparatus
    10.
    发明授权
    Liquid crystal device and liquid crystal apparatus 失效
    液晶装置和液晶装置

    公开(公告)号:US5858269A

    公开(公告)日:1999-01-12

    申请号:US715632

    申请日:1996-09-18

    摘要: A liquid crystal device is constituted by a pair of substrates each having thereon at least an electrode and an alignment control layer, and a liquid crystal composition disposed between the substrates. At least one of the alignment control layers has a thickness of at most 200 .ANG. or comprises polyimide. In the latter case, the pair of substrates have been subjected to mutually different aligning treatments. The liquid crystal composition comprises at least one species of a fluorine-containing mesomorphic compound in an amount of at least 70 wt. % comprising a fluorocarbon terminal portion and a hydrocarbon terminal portion, the terminal portions being connected with a central core, and having smectic mesophase or latent smectic mesophase, and comprises at least one species of a resistivity-modifying substance. The fluorine-containing mesomorphic compound comprises a compound having a fluorocarbon terminal portion containing at least one catenary ether oxygen atom in an amount of at least 30 wt. % based on the liquid crystal composition. The liquid crystal device is effective in improving switching characteristics, an alignment characteristic and display performances while retaining a bookshelf structure or a near bookshelf structure with respect to a smectic layer structure.

    摘要翻译: 液晶装置由一对基板构成,每个基板至少具有电极和取向控制层,以及设置在基板之间的液晶组合物。 至少一个取向控制层的厚度至多为200或包含聚酰亚胺。 在后一种情况下,这对基板已进行相互不同的取向处理。 液晶组合物包含至少一种含氟介晶化合物,其含量至少为70wt。 %,其包含碳氟化合物末端部分和烃末端部分,末端部分与中心核心连接,并且具有近晶中间相或潜在的近晶中间相,并且包含至少一种电阻率修饰物质。 含氟介晶化合物包含含有至少一个链烯氧原子的碳氟化合物末端部分的化合物,其量至少为30重量%。 基于液晶组成。 液晶装置在保持相对于层间结构的书架结构或靠近书架结构的同时有效地改善开关特性,对准特性和显示性能。