Liquid crystal composition, liquid crystal device using the same, light
controlling element, recording medium, and light shutter
    1.
    发明授权
    Liquid crystal composition, liquid crystal device using the same, light controlling element, recording medium, and light shutter 失效
    液晶组合物,使用其的液晶装置,光控元件,记录介质和光快门

    公开(公告)号:US5645758A

    公开(公告)日:1997-07-08

    申请号:US421407

    申请日:1995-04-13

    摘要: A liquid crystal composition comprising a liquid crystal and a second substance dispersed therein, the second substance having affinity for the liquid crystal and being composed of particles having a particle size and an aspect ratio of a predetermined value or greater, and a liquid crystal composition comprising a liquid crystal containing electric field sensitive liquid crystal molecules having a positive dielectric anisotropy as the principal component and flat plate-shaped particles having affinity for the liquid crystal being dispersed therein at such a degree of density suitable for effectively forming liquid crystal domains. Also described are a liquid crystal device using the same, a light-controlling element, a recording medium, and a light shutter.

    摘要翻译: 一种液晶组合物,其包含分散在其中的液晶和第二物质,所述第二物质对液晶具有亲和性,并且由具有预定值或更大的粒径和纵横比的颗粒组成,并且包含 以具有正介电各向异性为主要成分的电场敏感液晶分子的液晶和对液晶具有亲和性的平板状颗粒以适合于有效形成液晶畴的密度的方式分散在其中。 还描述了使用它的液晶装置,光控制元件,记录介质和光闸。

    Optical device with memory function employing liquid
crystal/orientation-sustaining material composite, and method for using
same
    4.
    发明授权
    Optical device with memory function employing liquid crystal/orientation-sustaining material composite, and method for using same 失效
    具有采用液晶/取向维持材料复合材料的记忆功能的光学装置及其使用方法

    公开(公告)号:US6023312A

    公开(公告)日:2000-02-08

    申请号:US736725

    申请日:1996-10-25

    摘要: An optical device employs a composite of a liquid crystalline substance and an orientation-sustaining material, such as a selected polymer, flat particles, or other material capable of sustaining the state of orientation of the liquid crystalline substance. The optical device has a memory function which is erased by the application of an electrical signal. External force for writing on the device generates local changes of the state of orientation of the liquid crystalline substance. The written display is memorized, and can be erased by the application of an electrical signal. When a two-frequency-driving liquid crystalline substance is used, the device has a long-term memory function. In this device, writing can be conducted at one frequency and erasure easily conducted at the other frequency. These optical devices can be used for light adjustment, display, and data storage.

    摘要翻译: 光学装置使用液晶物质和取向维持材料如选择的聚合物,平坦颗粒或能够维持液晶物质的取向状态的其它材料的复合物。 光学装置具有通过应用电信号而被擦除的记忆功能。 在设备上写入的外部力产生液晶物质的取向状态的局部变化。 写入的显示被记住,并且可以通过应用电信号来擦除。 当使用双频驱动液晶物质时,该装置具有长期记忆功能。 在该装置中,可以以一个频率进行写入,并且可以以另一个频率容易地进行擦除。 这些光学器件可用于调光,显示和数据存储。

    Liquid crystal composition
    5.
    发明授权
    Liquid crystal composition 失效
    液晶组成

    公开(公告)号:US5766508A

    公开(公告)日:1998-06-16

    申请号:US593888

    申请日:1996-01-30

    摘要: This invention provides liquid crystal compositions for light controlling materials of light scattering type having both memory and high speed response characteristics. The composition neither needs a temperature controlling device nor a device for imparting a shear stress as a memory erasing device, because the composition comprises a two-frequency addressing liquid crystal or such liquid crystal with an ionic component. The two-frequency addressing liquid crystal responds to an electric field and exhibits a positive dielectric anisotropy or a negative dielectric anisotropy depending on the frequency region of the electric field. Because the flat shaped particles of the present invention exhibit an affinity with the liquid crystal, the particles are dispersed in the liquid crystal and form liquid crystal domains effectively.

    摘要翻译: 本发明提供了具有记忆和高速响应特性的光散射型光控材料的液晶组合物。 该组合物既不需要温度控制装置也不需要赋予剪切应力的装置作为存储器擦除装置,因为该组合物包括双频寻址液晶或这种具有离子成分的液晶。 双频寻址液晶响应于电场,并且根据电场的频率区域呈现正的介电各向异性或负的介电各向异性。 由于本发明的扁平状颗粒与液晶呈亲和性,所以将颗粒分散在液晶中并有效地形成液晶畴。

    Composite clay material and method for producing the same, blend
material and composite clay rubber using the same and production method
thereof

    公开(公告)号:US6121361A

    公开(公告)日:2000-09-19

    申请号:US225998

    申请日:1999-01-07

    CPC分类号: C01B33/44 C08K3/346

    摘要: A composite clay material with the interlayer distance sufficiently expanded by dispersing clay mineral in a low polar polymer on a molecular level and the method for producing the same, blend material and composite clay rubber material using the same and the production method thereof.The composite clay material is formed of a clay mineral rendered compatible with an organic material through ionic bonding to an organic onium ion having 6 or more carbon number and a main guest molecule having a polar group in its main chain and side chain and molecular length equal to or larger than that of said organic onium ion. The main guest molecule is incorporated at least partially into an interlayer section of the clay mineral which has a hydrogen bonding with the polar group of the main guest molecule. The main guest molecule preferably has a molecular weight ranging from about 100 to 100000. Alternatively a first guest molecule having a polar group and molecular length equal to or smaller than that of the organic onium ion and a second guest molecule having no polar group therein and molecular length larger than that of the organic onium ion are incorporated into the interlayer section of the clay mineral instead of the main guest molecule. The above obtained clay composite material may be mixed with the rubber material.