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50 条记录 (耗时 0.014 秒)

    Smectic liquid crystal mixture
    6.
    发明公开
    Smectic liquid crystal mixture 失效
    SmektischeFlüssigkristallmischung。

    公开(公告)号：EP0293763A2

    公开(公告)日：1988-12-07

    申请号：EP88108416.4

    申请日：1988-05-26

    申请人： CHISSO CORPORATION

    发明人： Terashima, Kanetsugu ,  Ichihashi, Mitsuyoshi ,  Takeshita, Fusayuki ,  Kikuchi, Makoto ,  Furukawa, Kenji

    IPC分类号： C09K19/34

    CPC分类号： C09K19/3458

    摘要： A smectic liquid crystal mixture having a broad smectic C phase temperature range including room temper­ature, a ferroelectric smectic liquid crystal mixture having a large spontaneous polarization, comprising the above smectic mixture and at least one optically active compound, and a liquid crystal display element having an improved response time, containing the above ferroelectric smectic liquid crystal mixture are provided, which smectic liquid crystal mixture comprises

    (1) at least two components at least one of which is a pyrimidine compound expressed by the formula
    wherein R¹ and R² each are a linear alkyl group having 1 -20 carbons;
    (2) at least one pyrimidine compound of the formula (I) and at least one pyrimidine compound expressed by the formula
    wherein R³ and R⁴ each are a linear alkyl group having 1 - 18 carbons; or
    (3) at least one pyrimidine compound of the formula (I) and at least one biphenylpyrimidine compound expressed by the formula
    wherein R⁵ and R⁶ each are a linear alkyl or alkoxy group each having 1 - 18 carbons.

    摘要翻译： 具有包括室温的广泛的近晶C相温度范围的具有大自发极化的铁电近晶体液晶混合物的近晶型液晶混合物，包括上述近晶混合物和至少一种光学活性化合物，以及液晶显示元件，其具有 提供了包含上述铁电近晶液晶混合物的响应时间的改善，其中的近晶液晶混合物包括（1）至少两种组分，其中至少一种是由式CHEM表示的嘧啶化合物，其中R 1和 R 2各自为具有1〜20个碳原子的直链烷基; （2）式（I）的至少一种嘧啶化合物和由式CHEM表示的至少一种嘧啶化合物，其中R 3和R 4各自为具有1至18个碳原子的直链烷基; 或（3）式（I）的至少一种嘧啶化合物和由式CHEM表示的至少一种联苯嘧啶化合物，其中R 5和R 6各自为直链烷基或烷氧基， 18个碳。 小号

    Ferroelectric smectic C mixture, method for controlling its tilt angle, and light switching element
    7.
    发明公开
    Ferroelectric smectic C mixture, method for controlling its tilt angle, and light switching element 无效
    Ferroelektrische smektische C-Mischung，Verfahren zur Kontrolle ihres Kippwinkels und Lichtschalterelement。

    公开(公告)号：EP0220747A2

    公开(公告)日：1987-05-06

    申请号：EP86115156.1

    申请日：1986-10-31

    申请人： CHISSO CORPORATION

    发明人： Furukawa, Kenji ,  Terashima, Kanetsugu ,  Ichihashi, Mitsuyoshi

    IPC分类号： C09K19/02 ,  G02F1/137 ,  C09K19/46

    CPC分类号： G02F1/141 ,  C09K19/0225

    摘要： A method of controlling the tilt angle of ferro­electric chiral smectic C (S C *) phase of a liquid crystal mixture is provided by making smectic A (S A ) phase present in the mixture to thereby control the tilt angle to 16 - 29°, or by making S A phase absent therein to thereby control the angle to 32 - 58°, the former method being suitably applied to birefringence display and the latter, to guest-host display, the ferroelectric smectic C mixture obtained in the method and a light switch­ing element using said mixture are disclosed.

    摘要翻译： 通过使混合物中存在的近晶A（SA）相，通过使倾斜角度控制在16-29度，或者将倾斜角控制在16-29度，由此提供控制液晶混合物的铁电手性近晶C（SC *）相倾斜角的方法 在其中不存在SA相，从而将角度控制在32-58°，前一种方法适用于双折射显示，后者适用于客体显示，该方法中获得的铁电近晶C混合物和使用 所述混合物被公开。

    Ferroelectric liquid crystal composition
    10.
    发明公开
    Ferroelectric liquid crystal composition 失效
    铁电液晶组成

    公开(公告)号：EP0383261A3

    公开(公告)日：1991-10-23

    申请号：EP90102799.5

    申请日：1990-02-13

    申请人： Chisso Corporation

    发明人： Murashiro, Katsuyuki ,  Kikuchi, Makoto ,  Ichihashi, Mitsuyoshi ,  Terashima, Kanetsugu ,  Seki, Masaharu

    IPC分类号： C09K19/34

    CPC分类号： C09K19/3458

    摘要： The present invention provides a ferroelectric liquid crystal composition which can exhibit an S C * phase in an extensive temperature range inclusive of room temperature and which has quick response properties and a large tilt angle, and it also provides a switching element containing the above-mentioned ferroelectric liquid crystal composition and having excellent response properties. The present invention is connected with a ferroelectric liquid crystal composition comprising at least one component A and at least one component B described hereinafter, the content of said component A being from 30 to 95% by weight, the content of said component B being from 5 to 50% by weight,
    said component A being a compound represented by the formula (I)
    wherein R¹ is an alkyl group or alkoxy group having 1 to 18 carbon atoms, k is an integer of 1 or 2, and R² is a straight-chain or branched alkyl group,
    said component B being a ferroelectric liquid crystal compound having a spontaneous polarization of 10 nCcm⁻² or more.

    摘要翻译： 本发明提供一种铁电液晶组合物，其能够在包括室温的广泛温度范围内显示出SC *相，并且具有快速响应性和大倾角，并且还提供了一种开关元件，其包含上述铁电体 液晶组合物并具有优异的响应性。 本发明与包含至少一种组分A和至少一种后述的组分B的铁电液晶组合物相连，所述组分A的含量为30-95重量％，所述组分B的含量为5 所说的组分A是由式（Ⅰ）表示的化合物，其中R 1是具有1-18个碳原子的烷基或烷氧基，k是1或2的整数，R 2是直链或支链烷基， 所述组分B是具有10nCcm -2或更高的自发极化的铁电液晶化合物。