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    • 83. 发明申请
    • METHOD OF DRIVING LIQUID CRYSTAL ELEMENT
    • 驱动液晶元件的方法
    • WO1990007725A1
    • 1990-07-12
    • PCT/JP1986000396
    • 1986-07-28
    • YAZAKI, MinoruSATO, YuzuruITO, Akihiko
    • G02F01/133
    • G09G3/3681G09G3/2011G09G3/2014G09G3/3629G09G3/3692G09G2310/06G09G2310/061
    • Method of driving a liquid crystal element wherein in multiplex-driving of a liquid crystal element made up of a ferroelectric liquid crystal, a voltage pulse, of which the peak value and the pulse width are greater than their saturation values, is applied to render the liquid crystal element turned on or off in the former half of a selection period or in a non-selection period just before the selection period, and then a voltage pulse having a polarity opposite to that of the above voltage pulse and of which the peak value and pulse width are smaller than a threshold value or larger than the saturation value is applied to maintain the liquid crystal element turned on or off, or to invert the liquid crystal element. Therefore, even in the case of multiplex-driving of the ferroelectric liquid crystal which has a property to be differently oriented, i.e., turned on or off, depending upon the polarity of the voltage pulse greater than the saturation value thereof, a mean value of the voltage that is applied can be brought into zero irrespective of the on or off pattern, and the liquid crystal element can be prevented from being deteriorated and its life can be lengthened.
    • 驱动液晶元件的方法,其中在由铁电液晶组成的液晶元件的多路驱动中,施加峰值和脉冲宽度大于其饱和值的电压脉冲,以使 液晶元件在选择期间的前半部分中或在选择期间之前的非选择期间接通或断开,然后是与上述电压脉冲的极性相反的电压脉冲,其峰值 并且脉冲宽度小于阈值或大于施加饱和值以保持液晶元件导通或截止或者使液晶元件反转。 因此,即使在电压脉冲的极性大于其饱和值的情况下,即使导通或截止也具有取向不同的特性的铁电液晶的多路驱动,平均值 无论打开或关闭图案都被施加的电压可以变为零,并且可以防止液晶元件劣化并且其寿命可以延长。