Liquid crystal device and liquid crystal display apparatus having a chevron structure in monostable alignment
    3.
    发明授权
    Liquid crystal device and liquid crystal display apparatus having a chevron structure in monostable alignment 失效
    具有单稳态对准的人字纹结构的液晶装置和液晶显示装置

    公开(公告)号:US06310677B1

    公开(公告)日:2001-10-30

    申请号:US09257032

    申请日:1999-02-25

    IPC分类号: C09K1902

    摘要: A liquid crystal device has a pair of oppositely disposed substrates and a liquid crystal having chiral smectic C phase disposed therebetween. The liquid crystal is placed in an alignment state in chiral smectic C phase with smectic molecular layers forming a chevron structure. Under no electric field application, the liquid crystal has an average molecular axis substantially in alignment with the uniaxial alignment axis and/or a bisector of a maximum angle formed between two extreme molecular axes established under electric field application, while under electric field application, the liquid crystal provides an effective tilt angle and a transmittance that continuously changes depending on an electric field applied thereto.

    摘要翻译: 液晶装置具有一对相对设置的基板和其间设置有手性近晶C相的液晶。 在手性近晶C相中将液晶置于取向状态,其中层间分子层形成人字纹结构。 在没有电场应用的情况下,液晶具有基本上与单轴取向轴对齐的平均分子轴和/或在电场施加下建立的两个极限分子轴之间形成的最大角度的二等分线,而在电场施加下, 液晶提供有效的倾斜角度和根据施加到其上的电场而连续变化的透射率。

    Liquid crystal substrate with optical modulation region having different alignment control forces
    5.
    发明授权
    Liquid crystal substrate with optical modulation region having different alignment control forces 失效
    具有光调制区域的液晶基板具有不同的取向控制力

    公开(公告)号:US06195147B1

    公开(公告)日:2001-02-27

    申请号:US09126857

    申请日:1998-07-31

    IPC分类号: G02F1141

    摘要: A liquid crystal device is constituted by a pair of substrates and a liquid crystal disposed in a uniform alignment state between the substrates. At least one of the substrate has a surface contacting the liquid crystal and including a first region having a larger uniaxial alignment control force and a second region having a smaller or substantially no uniaxial alignment control force, respectively acting on the liquid crystal. In the device, phase transition from liquid phase to mesomorphic phase on temperature decrease, of the liquid crystal has been initiated from a portion contacting the first region and enlarged toward the second region to place the liquid crystal in a uniform alignment state, thus ensuring an increased effective voltage applied to the liquid crystal while retaining a good alignment characteristic to improve drive and display characteristics.

    摘要翻译: 液晶装置由一对基板和在基板之间以均匀排列状态设置的液晶构成。 衬底中的至少一个具有与液晶接触的表面,并且包括具有较大的单轴取向控制力的第一区域和分别作用在液晶上的具有较小或基本上不具有单轴取向控制力的第二区域。 在该装置中,从接触第一区域的部分开始逐渐向第二区域扩大液晶的液相温度降低的相变相位,使液晶以均匀取向状态进行,从而确保 增加施加到液晶的有效电压,同时保持良好的对准特性以改善驱动和显示特性。

    Liquid crystal device and liquid crystal display apparatus
    6.
    发明授权
    Liquid crystal device and liquid crystal display apparatus 失效
    液晶显示装置及液晶显示装置

    公开(公告)号:US06128064A

    公开(公告)日:2000-10-03

    申请号:US353154

    申请日:1999-07-14

    摘要: A liquid crystal device is constituted by a chiral smectic liquid crystal and a pair of substrates sandwiching the chiral smectic liquid crystal therebetween and each having thereon an electrode for applying a voltage to the liquid crystal. At least one of the substrates being provided with an alignment control film comprising a specific aromatic polyimide which has been subjected to a uniaxial aligning treatment. The chiral smectic liquid crystal assumes bistability in a chiral smectic temperature range when incorporated in a test cell which is not provided with an alignment control film and has been subjected to shearing treatment. In the liquid crystal device including the polyimide alignment control film, the chiral smectic liquid crystal at least has a voltage-transmittance characteristic such that an effective tilt angle and a transmittance continuously change depending on an electric field applied thereto.

    摘要翻译: 液晶装置由手性近晶液晶和夹在其间的手性近晶液晶的一对基板构成,并具有用于向液晶施加电压的电极。 至少一个基板设置有包含已经进行单轴对准处理的特定芳族聚酰亚胺的取向控制膜。 手性近晶液晶在手性近晶温度范围内呈现双重稳定性,当并入未设置取向控制膜并进行剪切处理的测试电池中时。 在包括聚酰亚胺取向控制膜的液晶装置中,手性近晶液晶至少具有电压 - 透射特性,使得有效倾斜角和透射率根据施加到其上的电场而不断变化。

    Ferroelectric chiral smectic liquid crystal composition and liquid
crystal device using same
    7.
    发明授权
    Ferroelectric chiral smectic liquid crystal composition and liquid crystal device using same 失效
    铁电手性近晶液晶组合物和使用其的液晶装置

    公开(公告)号:US5512208A

    公开(公告)日:1996-04-30

    申请号:US53828

    申请日:1993-04-30

    摘要: A ferroelectric chiral smectic liquid crystal composition, comprising at least one compound represented by the following formula (I): ##STR1## wherein R.sub.1 denotes a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent, R.sub.2 denotes a linear or branched alkyl group having 1-12 carbon atoms; X.sub.1 denotes a single bond, ##STR2## and at least one compound represented by the following formula (II): ##STR3## wherein R.sub.3 and R.sub.4 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent, at least one of R.sub.3 and R.sub.4 being optically active; and X.sub.2 and X.sub.3 respectively denote a single bond, ##STR4##

    摘要翻译: 一种铁电手性近晶液晶组合物,其包含至少一种由下式(I)表示的化合物:其中R 1表示具有1-18个能够具有取代基的碳原子的直链或支链烷基,R2 表示具有1-12个碳原子的直链或支链烷基; (II)表示的至少一种化合物:其中R 3和R 4分别表示直链或支链烷基, 具有能够具有取代基的1-18个碳原子,R3和R4中的至少一个是光学活性的; X2和X3分别表示单键,

    Liquid crystal composition and liquid crystal device using same
    9.
    发明授权
    Liquid crystal composition and liquid crystal device using same 失效
    液晶组合物和使用其的液晶装置

    公开(公告)号:US5139697A

    公开(公告)日:1992-08-18

    申请号:US711566

    申请日:1991-05-30

    IPC分类号: C09K19/46

    CPC分类号: C09K19/46

    摘要: A liquid crystal composition comprises at least one compound represented by the formula [I] below and at least one compound represented by the formula [II] below: ##STR1## wherein R.sub.1 denotes an alkyl group having 1-16 carbon atoms capable of having a substituent; R.sub.2 denotes any one of alkyl group, alkoxy group, alkoxycarbonyl group, acyloxy group and alkoxycarbonyloxy group, each having 1-16 carbon atoms and being capable of having a substituent; and A denotes any one of ##STR2## each capable of having a substituent; and ##STR3## wherein R.sub.3 denotes a linear alkyl group having 1-16 carbon atoms; R.sub.4 denotes a linear alkyl group having 1-12 carbon atoms; X.sub.1 is a single bond, --O--, ##STR4## X.sub.2 is --OCH.sub.2 --, ##STR5## or --CH.sub.2 --; and Z is ##STR6##

    摘要翻译: 液晶组合物包含至少一种由下式[I]表示的化合物和至少一种由下式[II]表示的化合物:其中R 1表示具有1-16个碳原子的烷基 具有取代基; R2表示具有1-16个碳原子并能够具有取代基的烷基,烷氧基,烷氧基羰基,酰氧基和烷氧基羰基氧基中的任一个; A表示能够具有取代基的 中的任一个; 和[II]其中R3表示具有1-16个碳原子的直链烷基; R4表示具有1-12个碳原子的直链烷基; X 1是单键,-O-,X 2是-OCH 2 - ,或-CH 2 - ; 而Z是