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    • 8. 发明授权
    • Liquid crystal apparatus
    • 液晶装置
    • US6046717A
    • 2000-04-04
    • US471157
    • 1995-06-06
    • Osamu TaniguchiHiroshi InoueAtsushi MizutomeTadashi MiharaYoshihiro OnitsukaMasahiro Terada
    • Osamu TaniguchiHiroshi InoueAtsushi MizutomeTadashi MiharaYoshihiro OnitsukaMasahiro Terada
    • G09G3/36G09G3/18
    • G09G3/3629G09G2310/0224G09G2310/06G09G2310/061G09G2310/065G09G2320/0209G09G2320/0247
    • A liquid crystal apparatus comprises scanning electrodes and data electrodes intersecting with each other to form a pixel at each intersection, and a ferroelectric liquid crystal disposed between the scanning electrodes and data electrodes. The apparatus includes a first unit for applying to the scanning electrodes at least two scanning selection signals in at least two vertical scanning periods; the scanning selection signals having mutually different waveforms and each having a pulse of one or the other voltage polarity with respect to the level of a voltage applied a scanning electrode when it is not selected; and a second unit for applying data pulses to the data electrodes in phase with said pulse of one or the other voltage polarity. The first unit and second unit in combination apply a fore voltage pulse to a pixel on a scanning electrode selected by application of the pulse of one or the other voltage polarity prior to each application of a writing voltage formed by combination of the pulse of one or the other polarity and an information pulse. The fore voltage pulse has a polarity opposite to that of the writing voltage and an amplitude which is 1/2 or less of that of the writing voltage.
    • 液晶装置包括彼此相交的扫描电极和数据电极,以在每个交点处形成像素,并且设置在扫描电极和数据电极之间的铁电液晶。 该装置包括:第一单元,用于在至少两个垂直扫描周期中向扫描电极施加至少两个扫描选择信号; 所述扫描选择信号具有相互不同的波形,并且当没有选择时,所述扫描选择信号相对于施加扫描电极的电压的电平具有一个或另一个电压极性的脉冲; 以及第二单元,用于与一个或另一个电压极性的所述脉冲同相地向数据电极施加数据脉冲。 第一单元和第二单元组合在通过施加一个或另一个电压极性的脉冲而选择的扫描电极上的像素上施加前电压脉冲,在每次施加通过组合一个或多个脉冲形成的写入电压 另一个极性和信息脉冲。 前级电压脉冲的极性与写入电压的极性相反,幅度为写入电压的+ E,fra 1/2 + EE以下。