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    Liquid crystal apparatus
    1.
    发明授权
    Liquid crystal apparatus 失效
    液晶装置

    公开(公告)号：US5488388A

    公开(公告)日：1996-01-30

    申请号：US274155

    申请日：1994-07-14

    申请人： Osamu Taniguchi ,  Hiroshi Inoue ,  Atsushi Mizutome ,  Tadashi Mihara ,  Yoshihiro Onitsuka ,  Masahiro Terada

    发明人： Osamu Taniguchi ,  Hiroshi Inoue ,  Atsushi Mizutome ,  Tadashi Mihara ,  Yoshihiro Onitsuka ,  Masahiro Terada

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3629 ,  G09G2310/0224 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2320/0209 ,  G09G2320/0247

    摘要： Driving apparatus including scanning electrodes and data electrodes, a liquid crystal assuming first and second optical states according to the polarity of a writing voltage applied thereto and disposed between the scanning and data electrodes, scanning-side and drive-side drivers, and a controller for controlling these drivers. The scanning-side drive supplies first and second scanning selections signals having mutually different voltage wave forms to the scanning electrodes so that the first and second scanning selection signals are applied alternately in respective vertical scanning periods. The data-side driver supplies data pulses to the data electrodes in synchronism with the first and second scanning selection signals so as to form one picture in at least four vertical scanning periods. The controller controls the scanning-side and data-side drivers so as to scroll each picture in at least four vertical scanning periods.

    摘要翻译： 包括扫描电极和数据电极的驱动装置，根据施加到其上的写入电压的极性设置第一和第二光学状态的液晶，并且设置在扫描和数据电极之间，扫描侧和驱动侧驱动器，以及控制器 控制这些驱动程序。 扫描侧驱动器将具有相互不同的电压波形的第一和第二扫描选择信号提供给扫描电极，使得第一和第二扫描选择信号在各个垂直扫描周期中交替施加。 数据侧驱动器与第一和第二扫描选择信号同步地向数据电极提供数据脉冲，以便在至少四个垂直扫描周期中形成一个图像。 控制器控制扫描侧和数据侧驱动程序，以便在至少四个垂直扫描周期内滚动每个图像。

    Liquid crystal apparatus
    3.
    发明授权
    Liquid crystal apparatus 失效
    液晶装置

    公开(公告)号：US6046717A

    公开(公告)日：2000-04-04

    申请号：US471157

    申请日：1995-06-06

    申请人： Osamu Taniguchi ,  Hiroshi Inoue ,  Atsushi Mizutome ,  Tadashi Mihara ,  Yoshihiro Onitsuka ,  Masahiro Terada

    发明人： Osamu Taniguchi ,  Hiroshi Inoue ,  Atsushi Mizutome ,  Tadashi Mihara ,  Yoshihiro Onitsuka ,  Masahiro Terada

    IPC分类号： G09G3/36 ,  G09G3/18

    CPC分类号： G09G3/3629 ,  G09G2310/0224 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2320/0209 ,  G09G2320/0247

    摘要： 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.

    摘要翻译： 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。

    Liquid crystal apparatus and driving method
    8.
    发明授权
    Liquid crystal apparatus and driving method 失效
    液晶装置及驱动方法

    公开(公告)号：US5691740A

    公开(公告)日：1997-11-25

    申请号：US434990

    申请日：1995-05-04

    申请人： Yoshihiro Onitsuka ,  Hiroshi Inoue ,  Osamu Taniguchi ,  Atsushi Mizutome ,  Tadashi Mihara ,  Akira Tsuboyama

    发明人： Yoshihiro Onitsuka ,  Hiroshi Inoue ,  Osamu Taniguchi ,  Atsushi Mizutome ,  Tadashi Mihara ,  Akira Tsuboyama

    IPC分类号： G09G3/20 ,  G09G3/36

    CPC分类号： G09G3/3629 ,  G09G2310/0224 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2320/0209 ,  G09G2320/041 ,  G09G3/2011 ,  G09G3/207

    摘要： A liquid crystal display apparatus having scanning electrodes, data electrodes, and ferroelectric liquid crystal material placed between the scanning electrodes and the data electrodes. Scanning signals are applied sequentially to the scanning electrodes to select a scanning electrode. Data signals are applied in synchronization with the scanning signals to place a voltage at the intersection of the data electrode and the selected scanning electrode which will place the ferroelectric material at the intersection into the desired optical state. The scanning signals and the data signals are such that pixels located at the intersection of the non selected scanning electrodes and data electrodes receive an AC voltage superimposed onto a DC voltage. Pixels on selected scanning electrodes may also receive the AC voltage superimposed onto the DC voltage. The DC voltage has its polarity inverted with every vertical scanning period.

    摘要翻译： 具有放置在扫描电极和数据电极之间的扫描电极，数据电极和铁电液晶材料的液晶显示装置。 扫描信号依次施加到扫描电极以选择扫描电极。 数据信号与扫描信号同步地施加，以将数据电极和所选择的扫描电极的交点处置电压，这将使铁电材料在交叉点处置于所需的光学状态。 扫描信号和数据信号使得位于非选择的扫描电极和数据电极的交点处的像素接收叠加在直流电压上的交流电压。 所选择的扫描电极上的像素也可以接收叠加在直流电压上的交流电压。 每个垂直扫描周期，直流电压的极性反转。