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    • 7. 发明授权
    • Ferroelectric liquid crystal optical modulation device providing
gradation by voltage gradient on resistive electrode
    • 铁电液晶光调制装置,通过电阻电极上的电压梯度提供灰度
    • US4776676A
    • 1988-10-11
    • US88613
    • 1987-08-24
    • Hiroshi InoueMasaki Kuribayashi
    • Hiroshi InoueMasaki Kuribayashi
    • H04N3/12G02F1/13
    • H04N3/127Y10S359/90
    • An optical modulation device suited for gradational display, includes a first conductor film electrically connected to a first electrode and a second electrode, and a second conductor film disposed opposite to the first conductor film, an optical modulation material disposed between the first and second conductor films; and driving means for (a) setting the first electrode at a first reference potential and supplying the second electrode with a first voltage of one polarity relative to the first reference potential to furnish the first conductor film with a first potential gradient; (b) supplying the second conductor film with a first voltage of the other polarity relative to the first reference potential in phase with the first voltage of one polarity; (c) setting the second electrode at a second reference potential and supplying the first electrode with a second voltage of the other polarity relative to the second reference potential to furnish the first conductor film with a second potential gradient; (d) supplying the second conductor film with a second voltage of one polarity relative to the second reference potential in phase with the second voltage of the other polarity; and (e) setting the second voltage of one (or the other) polarity to satisfy a compliment relationship with the first voltage of the other (or one) polarity.
    • 适于梯度显示的光调制装置包括电连接到第一电极和第二电极的第一导体膜和与第一导体膜相对设置的第二导体膜,设置在第一和第二导体膜之间的光调制材料 ; 以及驱动装置,用于(a)将第一电极设置在第一参考电位,并且相对于第一参考电位向第二电极提供具有一个极性的第一电压,以向第一导体膜提供第一电位梯度; (b)向第二导体膜提供相对于第一参考电位的另一极性的第一电压与一个极性的第一电压同相; (c)将第二电极设置在第二参考电位,并且向第一电极提供相对于第二参考电位的另一极性的第二电压,以向第一导体膜提供第二电位梯度; (d)向所述第二导体膜提供相对于所述第二参考电位的一个极性的第二电压与所述另一极性的所述第二电压相位; 和(e)设置一个(或另一个)极性的第二电压以满足与另一个(或一个)极性的第一电压的补偿关系。