Liquid crystal compound and liquid crystal mixture
    3.
    发明授权
    Liquid crystal compound and liquid crystal mixture 有权
    液晶复合物和液晶混合物

    公开(公告)号:US08388861B2

    公开(公告)日:2013-03-05

    申请号:US13049905

    申请日:2011-03-17

    摘要: A LC compound and a LC mixture are provided. The LC mixture includes a compound represented by (I) and at least one compound selected from a group consisting of compounds represented by (II) to (IV): in which X1 is F, —Cl, —CF3, or —OCF3; R, R11, and R12 are independently H, a C1-C15 alkyl group, or a C2-C15 alkenyl group; A1 is 1,4-phenylene; A11, A12, A13, and A14 are independently selected from a group consisting of 1,4-phenylene, 1,4-cyclohexylene, and 2,5-tetrahydropyranylene; at least one of A2, A3, and A4 is 2,5-indanylene, and the others are independently selected from a group consisting of 1,4-phenylene, 1,4-cyclohexylene, and 2,5-tetrahydropyranylene; L1 is —F2CO—; Z11, Z12, and Z13 are independently a single bond, —O—, —F2CO—, or —COO—; m is 1; n, o and p are independently 0, 1, 2 or 3, and n+o+p≧3.

    摘要翻译: 提供LC化合物和LC混合物。 LC混合物包括由(I)表示的化合物和选自由(II)至(IV)表示的化合物中的至少一种化合物:其中X 1是F,-Cl,-CF 3或-OCF 3; R,R 11和R 12独立地为H,C 1 -C 15烷基或C 2 -C 15烯基; A1是1,4-亚苯基; A11,A12,A13和A14独立地选自1,4-亚苯基,1,4-亚环己基和2,5-四氢吡喃; A2,A3和A4中的至少一个为2,5-亚联苯基,其余各自独立地选自1,4-亚苯基,1,4-亚环己基和2,5-四氢吡喃; L1为-F2CO-; Z11,Z12和Z13独立地为单键,-O - , - F 2 CO-或-COO-; m为1; n,o和p独立地为0,1,2或3,n + o +p≥3。

    MIXTURE OF LIQUID-CRYSTAL COMPOUNDS, SYSTEM OF THREE LIQUID-CRYSTAL MIXTURES AND THEIR USE
    4.
    发明申请
    MIXTURE OF LIQUID-CRYSTAL COMPOUNDS, SYSTEM OF THREE LIQUID-CRYSTAL MIXTURES AND THEIR USE 有权
    液晶混合物,三液混合体系及其使用

    公开(公告)号:US20120298918A1

    公开(公告)日:2012-11-29

    申请号:US13575827

    申请日:2011-01-28

    IPC分类号: C09K19/50 C09K19/26

    摘要: Three organic compounds mixtures of liquid-crystal properties, which when mixed together in a precisely determined weight ratio, may show an ability to form thermo-optically active mesophases of established, narrow range thermooptical transitions separation, every 0.5° C., in the temperature range: from 31.8° C. to 32.8° C., from 32.8° C. to 33.8° C., and from 33.8° C. to 34.8° C. and system including these mixtures. The use of these mixtures and the system containing the above mentioned mixtures for colorimetric detection of temperature differentiation on the surface of biological objects in a narrow range of temperatures

    摘要翻译: 三种有机化合物的液晶性质的混合物,当以精确确定的重量比混合在一起时,可显示形成具有建立的窄范围热光学转变分离的热光学活性中间相的能力,每0.5℃,温度 范围:31.8℃至32.8℃,32.8℃至33.8℃,33.8℃至34.8℃,体系包括这些混合物。 使用这些混合物和含有上述混合物的体系用于在窄范围的温度范围内对生物物体表面的温度分化进行比色检测

    Temperature compensated liquid crystal devices
    9.
    发明授权
    Temperature compensated liquid crystal devices 失效
    温度补偿液晶装置

    公开(公告)号:US4219255A

    公开(公告)日:1980-08-26

    申请号:US853477

    申请日:1977-11-21

    申请人: Edward P. Raynes

    发明人: Edward P. Raynes

    CPC分类号: C09K19/42 G02F1/137

    摘要: A phase change liquid crystal device comprising a layer of liquid crystal material contained between two transparent slides which carry electrode structures for applying a voltage across the layer. The liquid crystal material is a mixture of nematic and cholesteric material having a smectic to cholesteric transition just below the operating temperature range of the device. This provides a cholesteric pitch change to compensate for changes with temperature in the elastic twist and dielectric constants.

    摘要翻译: 一种相变液晶装置,包括在两个透明载片之间所含的液晶材料层,所述两个透明载玻片携带用于跨所述层施加电压的电极结构。 液晶材料是向列和胆甾醇材料的混合物,其具有刚好低于器件工作温度范围的近晶相到胆甾醇转变。 这提供了胆甾醇间距改变以补偿弹性扭转和介电常数随温度的变化。

    Imaging system
    10.
    发明授权
    Imaging system 失效
    成像系统

    公开(公告)号:US3704056A

    公开(公告)日:1972-11-28

    申请号:US3704056D

    申请日:1971-08-31

    申请人: XEROX CORP

    IPC分类号: C09K19/50 G02F1/137 G02F1/16

    摘要: An imaging system which imagewise transforms a cholesteric liquid crystalline material from its Grandjean or ''''disturbed'''' texture state to its focal-conic or ''''undisturbed'''' texture state by an imagewise applied electrical field whereby a cholesteric liquid crystalline member is imaged in a desired image configuration by the electrical field-induced texture transition system.

    摘要翻译: 一种成像系统,其通过图像施加的电场将胆甾型液晶材料从其Grandjean或“受干扰”纹理状态成像转换为其焦点圆锥或“未受干扰”纹理状态,由此胆甾醇型液晶元件以期望的图像配置成像 通过电场诱导纹理转换系统。