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    • 1. 发明申请
    • LIQUID CRYSTAL COMPOSITION AND REFLECTIVE TYPE LIQUID CRYSTAL DISPLAY
    • 液晶组合物和反射型液晶显示器
    • WO2002099009A1
    • 2002-12-12
    • PCT/JP2002/004971
    • 2002-05-22
    • MINOLTA CO., LTD.
    • UEDA, HideakiKITAHORA, TakeshiMOTOORI, Fumie
    • C09K19/02
    • C09K19/586C09K19/02C09K19/0225C09K19/60G02F1/13718
    • A chiral nematic liquid crystal composition which contains a nematic liquid crystal mixture and a chiral agent, which exhibits a cholesteric phase at room temperature and which selectively reflects light of a specified wavelength, wherein the chiral agent has an anisotropy of dielectric constant within a range from 12 to 60. Such a chiral nematic liquid crystal composition may have a larger anisotropy of dielectric constant than the nematic liquid crystal mixture before being mixed with the chiral agent. Alternatively, in such a chiral nematic liquid crystal composition, the anisotropy of dielectric constant of the chiral agent may be larger than that of the nematic liquid crystal mixture. By filling such a chiral nematic liquid crystal composition between transparent substrates, a liquid crystal cell is fabricated, and by stacking such liquid crystal cells in three layers, a reflective type full-color liquid crystal display can be produced.
    • 一种含有向列液晶混合物和手性试剂的手征向列液晶组合物,其在室温下显示出胆甾型相,并且选择性地反射特定波长的光,其中手性试剂的介电常数各向异性在 这种手性向列液晶组合物可以在与手性试剂混合之前具有比向列型液晶混合物更大的介电常数各向异性。 或者,在这种手性向列液晶组合物中,手性试剂的介电常数的各向异性可以大于向列型液晶混合物的各向异性。 通过在透明基板之间填充这样的手性向列液晶组合物,制造液晶单元,通过将这种液晶单元堆叠在三层中,可以制造反射型全色液晶显示器。
    • 2. 发明申请
    • LIQUID CRYSTAL DISPLAY APPARATUS
    • 液晶显示装置
    • WO2002082174A1
    • 2002-10-17
    • PCT/JP2002/001780
    • 2002-02-27
    • MINOLTA CO., LTD.MIYAI, MitsuyoshiIZUMI, Tomoo
    • MIYAI, MitsuyoshiIZUMI, Tomoo
    • G02F1/137
    • G02F1/13718G02F1/134363G02F2001/134381
    • A liquid crystal display apparatus which has: a liquid crystal display which has chiral nematic liquid crystal between a pair of substrates with electrodes thereon and which makes a display by use of selective reflection of the liquid crystal; and a driving circuit for driving the liquid crystal by applying voltages to the electrodes. When an electric field of a specified strength is applied to the chiral nematic liquid crystal, the liquid crystal changes the direction of the helical axis without untwisting. By using this characteristic, the direction of the helical axis of the liquid crystal is changed by changing the direction of the electric field applied thereto, and thereby, the liquid crystal is set to a planar state or a focal-conic state. In this way, writing on the liquid crystal is carried out.
    • 一种液晶显示装置,其具有:在具有电极的一对基板之间具有手征向列型液晶的液晶显示器,并且通过使用液晶的选择反射进行显示; 以及通过向电极施加电压来驱动液晶的驱动电路。 当具有规定强度的电场施加到手性向列液晶时,液晶改变螺旋轴的方向而不退捻。 通过使用该特性,通过改变施加到其上的电场的方向来改变液晶的螺旋轴的方向,从而将液晶设置为平面状态或焦点锥形状态。 以这种方式,对液晶进行写入。