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    • 9. 发明授权
    • Liquid crystal apparatus and driving method
    • 液晶装置及驱动方法
    • US5956010A
    • 1999-09-21
    • US866112
    • 1997-05-30
    • Yasufumi AsaoYasuaki TakedaHirohide MunakataYukio HanyuNobuhiro Ito
    • Yasufumi AsaoYasuaki TakedaHirohide MunakataYukio HanyuNobuhiro Ito
    • G09G3/36
    • G09G3/3633G09G3/3629G09G2310/06G09G2310/061
    • A liquid crystal apparatus is constituted by a liquid crystal device including a pair of substrates and a liquid crystal disposed between the substrates, and means for applying an asymmetrical drive signal waveform to the liquid crystal. The liquid crystal is capable of having at least two stable states S1 and S2 and capable of causing a cumulative translational movement depending on a change in an external electric field applied to the liquid crystal. To the liquid crystal, an asymmetrical drive signal waveform having an effective frequency range is applied by the above application means so as to provide an absolute value of a difference between an inversion frequency f.sub.01 where a direction of the movement of said liquid crystal is turned in an opposite direction in the state S1 and an inversion frequency f.sub.02 where a direction of the movement of said liquid crystal is turned in an opposite direction in the state S2 smaller than a difference therebetween in the case of applying a symmetrical drive signal waveform to said liquid crystal. The inversion frequencies f.sub.01 and f.sub.02 are within the effective frequency range of the asymmetrical drive signal waveform. The application means is effective in suppressing liquid crystal movement in the liquid crystal device.
    • 液晶装置由包括一对基板和设置在基板之间的液晶的液晶装置构成,以及用于向液晶施加非对称驱动信号波形的装置。 液晶能够具有至少两个稳定状态S1和S2,并且能够根据施加到液晶的外部电场的变化而引起累积的平移运动。 对于液晶,通过上述施加装置施加具有有效频率范围的不对称驱动信号波形,以便提供转换所述液晶的移动方向的反转频率f01之间的差的绝对值 在状态S1中的相反方向和反转频率f02,其中在向对所述液体施加对称的驱动信号波形的情况下,在所述状态S2中,所述液晶的移动方向在相反方向转动, 水晶。 反转频率f01和f02在不对称驱动信号波形的有效频率范围内。 施加装置有效地抑制液晶装置中的液晶运动。