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    Liquid crystal apparatus and chiral smectic liquid crystal composition for use therein
    62.
    发明授权
    Liquid crystal apparatus and chiral smectic liquid crystal composition for use therein 失效
    液晶装置及其使用的CHIRAL SMECTIC LIQUID STYSTAL COMPOSITION

    公开(公告)号：US5119219A

    公开(公告)日：1992-06-02

    申请号：US543415

    申请日：1990-06-26

    申请人： Masahiro Terada ,  Masataka Yamashita ,  Shosei Mori ,  Shinichi Nakamura ,  Kenji Shinjo ,  Kazuharu Katagiri

    发明人： Masahiro Terada ,  Masataka Yamashita ,  Shosei Mori ,  Shinichi Nakamura ,  Kenji Shinjo ,  Kazuharu Katagiri

    IPC分类号： G02F1/13 ,  C09K19/02 ,  G02F1/133 ,  G09G3/18 ,  G09G3/36

    CPC分类号： C09K19/02 ,  G09G3/3629 ,  G09G2310/06 ,  G09G2320/041

    摘要： A liquid crystal apparatus includes a chiral smectic liquid crystal showing a first and a second orientation state disposed between first and second electrodes of a liquid cell. A drive circuit applies voltages between the first and second electrodes including voltages .vertline.V.sub.S .vertline. and .vertline.V.sub.I .vertline. which provide voltages V.sub.A and V.sub.B (V.sub.B V.sub.A) satisfying the relationship of: .vertline.(V.sub.A -V.sub.B)/(V.sub.A +V.sub.B).vertline.>0.1 at 40.degree. C. V.sub.A is a minimum peak value of a voltage .vertline.V.sub.S .vertline.+.vertline.V.sub.I .vertline. (at a constant pulse width) capable of inverting the first orientation state of the chiral smectic liquid crystal into the second orientation state when a voltage pulse is applied between the first and second electrodes to cause the first orientation state of the chiral smectic liquid crystal and then the voltage .vertline.V.sub.S .vertline.+.vertline.V.sub.I .vertline. is applied between the first and second electrodes as a combination of a voltage .vertline.V.sub.S .vertline. applied to the first electrode and a voltage - V.sub.I .vertline. applied to the second electrode V.sub.B is a value of .vertline.V.sub.S .vertline.+.vertline.V.sub.I .vertline. calculated based on a maximum peak value of a voltage .vertline.V.sub.S .vertline.-.vertline.V.sub.I .vertline. capable of maintaining the first orientation state of the chiral smectic liquid crystal when a voltage pulse is applied between the first and second electrodes to cause the first orientation state and then the voltage .vertline.V.sub.S .vertline.-.vertline.V.sub.I .vertline. is applied between the first and second electrodes as a combination of a voltage .vertline.V.sub.S .vertline. applied to the first electrode and a voltage .vertline.V.sub.I .vertline. applied to the second electrode.

    Liquid crystal device having pillar spacers with small base periphery width in direction perpendicular to orientation treatment
    65.
    发明授权
    Liquid crystal device having pillar spacers with small base periphery width in direction perpendicular to orientation treatment 失效
    液晶装置，其具有与取向处理垂直的方向的基底周边宽度小的柱状隔片

    公开(公告)号：US4775225A

    公开(公告)日：1988-10-04

    申请号：US862978

    申请日：1986-05-14

    申请人： Akira Tsuboyama ,  Hitoshi Shindo ,  Kazuharu Katagiri ,  Junichiro Kanbe

    发明人： Akira Tsuboyama ,  Hitoshi Shindo ,  Kazuharu Katagiri ,  Junichiro Kanbe

    IPC分类号： G02F1/1339 ,  G02F1/141 ,  G02F1/133

    CPC分类号： G02F1/13394 ,  G02F1/13392 ,  G02F1/141

    摘要： A liquid crystal device comprising a first base plate which has projections thereon and has been subjected to a uniaxial orientation treatment, a second base plate disposed oppositely spaced from the first base plate with the projections therebetween as spacers, and a liquid crystal disposed between the first and second base plates. The projections have a section taken in parallel with the base plates, and the section has a side with a length of 0-20 .mu.m in a direction perpendicular to the uniaxial orientation treatment. The projections may be in the form of rectangular pillars, cylindrical pillars, oval pillars, or hexagonal pillars.

    摘要翻译： 一种液晶装置，包括：第一基板，其上具有突起并进行单轴取向处理;第二基板，与第一基板相对设置，其间具有作为间隔物的突起，以及设置在第一基板之间的液晶 和第二基板。 突起具有与基板平行的部分，并且该部分在垂直于单轴取向处理的方向上具有长度为0-20μm的一侧。 突起可以是矩形柱，圆柱形柱，椭圆形柱或六角形柱的形式。

    Method of driving optical modulation device
    69.
    发明授权
    Method of driving optical modulation device 失效
    光调制装置的驱动方法

    公开(公告)号：US5812108A

    公开(公告)日：1998-09-22

    申请号：US440321

    申请日：1995-05-12

    申请人： Junichiro Kanbe ,  Kazuharu Katagiri ,  Syuzo Kaneko

    发明人： Junichiro Kanbe ,  Kazuharu Katagiri ,  Syuzo Kaneko

    IPC分类号： G09G3/20 ,  G09G3/34 ,  G09G3/36

    CPC分类号： G09G3/3629 ,  G03C2001/0471 ,  G09G2310/0205 ,  G09G2310/04 ,  G09G2310/06 ,  G09G2310/065 ,  G09G2320/0209 ,  G09G3/2014 ,  G09G3/2018 ,  Y10S359/90

    摘要： A driving method for an optical modulation device is applicable to driving of an optical modulation device, e.g. a liquid crystal device having a matrix electrode arrangement comprising a group of scanning electrodes, a group of signal electrodes oppositely spaced from the group of scanning electrodes, and an optical modulation material (e.g. a liquid crystal) showing bistability with respect to an electric filed applied thereto disposed between the groups of scanning electrodes and signal electrodes. The driving method is featured by applying a voltage allowing the liquid crystal having bistability to be oriented to a first stable state (one optically stable state) between a selected scanning electrode of the group of scanning electrodes and a selected signal electrode of the group of signal electrodes, and by applying a voltage allowing the liquid crystal having bistability to be oriented to a second stable state (the other optically stable state) between the selected scanning electrodes and non-selected signal electrodes.

    摘要翻译： 光调制装置的驱动方法适用于光调制装置的驱动，例如， 具有矩阵电极装置的液晶装置，该矩阵电极装置包括一组扫描电极，与该组扫描电极相对的一组信号电极以及显示相对于电场的双稳态的光调制材料（例如液晶） 设置在扫描电极组和信号电极之间。 该驱动方法的特征在于，通过施加电压，使具有双稳态的液晶取向为扫描电极组的选定的扫描电极和信号组的选定的信号电极之间的第一稳定状态（一个光学稳定状态） 电极，并且通过施加允许具有双稳态的液晶的电压被定向到所选择的扫描电极和未选择的信号电极之间的第二稳定状态（另一光学稳定状态）。

    Method of driving optical modulation device
    70.
    发明授权
    Method of driving optical modulation device 失效
    光调制装置的驱动方法

    公开(公告)号：US5790449A

    公开(公告)日：1998-08-04

    申请号：US462978

    申请日：1995-06-05

    申请人： Junichiro Kanbe ,  Kazuharu Katagiri ,  Syuzo Kaneko

    发明人： Junichiro Kanbe ,  Kazuharu Katagiri ,  Syuzo Kaneko

    IPC分类号： G09G3/20 ,  G09G3/34 ,  G09G3/36

    CPC分类号： G09G3/3629 ,  G03C2001/0471 ,  G09G2310/0205 ,  G09G2310/04 ,  G09G2310/06 ,  G09G2310/065 ,  G09G2320/0209 ,  G09G3/2014 ,  G09G3/2018 ,  Y10S359/90

    摘要： A liquid crystal apparatus includes a liquid crystal device having a group of scanning electrodes and a group of signal electrodes intersecting each other to form an electrode matrix, and a chiral smectic liquid crystal having a threshold voltage varying depending on a voltage pulse width disposed so as to form a picture element at each intersection of the scanning electrodes and the signal electrodes. The electrodes are driven by (a) applying a scanning selection signal and a scanning non-selection signal to the scanning electrodes, (b) applying data signals to the signal electrodes so as to apply a voltage to a selected picture element at an intersection of a selected scanning electrode receiving the scanning selection signal and a selected signal electrode, the voltage applied to the selected picture element being at least two times a voltage applied to a non-selected picture element at an intersection of a non-selected scanning electrode receiving the scanning non-selection signal and a selected or non-selected signal electrode, (c) periodically applying the scanning selection signal to the scanning electrodes, and (d) setting a voltage level of the voltage according to a local environmental temperature.

    摘要翻译： 一种液晶装置，包括具有一组扫描电极和一组信号电极彼此交叉以形成电极矩阵的液晶装置，以及具有根据电压脉冲宽度而变化的阈值电压的手性近晶液晶，其设置为 以在扫描电极和信号电极的每个交叉处形成像素。 通过（a）向扫描电极施加扫描选择信号和扫描非选择信号来驱动电极，（b）将数据信号施加到信号电极，以将电压施加到所选择的图像元素的交点处 接收扫描选择信号的选择的扫描电极和所选择的信号电极，施加到所选择的像素的电压至少是施加到未被选择的图像元素的电压的两倍， 扫描非选择信号和选择的或未选择的信号电极，（c）周期性地向扫描电极施加扫描选择信号，以及（d）根据当地环境温度设定电压的电压电平。