公开(公告)号：US5663743A

公开(公告)日：1997-09-02

申请号：US422219

申请日：1995-04-14

申请人： Tatsuhisa Fujii ,  Tomohide Ohira ,  Hiroshi Kunihara

发明人： Tatsuhisa Fujii ,  Tomohide Ohira ,  Hiroshi Kunihara

IPC分类号： G09G3/36

CPC分类号： G09G3/3696 ,  G09G3/3681 ,  G09G3/3692

摘要： A dynamic scattering matrix LCD, which requires a low expenditure of electric power without deteriorating contrast even when it is used for a high speed response STN liquid crystal display, includes a plurality of data line transparent electrodes, a plurality of scanning line transparent electrodes, data line drivers which selectively supply one of two levels of a first voltage signal to each of the data line transparent electrodes according to contents of a display image, scanning line drivers which selectively supply one of three levels of a second voltage signal to each of the scanning line transparent electrodes according to a control signal, and a voltage supply circuit which supplies the first voltage signal to the data line drivers and the second voltage signal to the scanning line drivers. The voltage supply circuit produces the two levels of the first voltage signal from two predetermined voltages without boosting the two predetermined voltages, and produces the highest and lowest levels of the three levels of the second voltage signal by boosting the two levels of the first voltage signal.

摘要翻译： 即使用于高速响应STN液晶显示器的动态散射矩阵LCD也要求电力消耗低而不会降低对比度，包括多条数据线透明电极，多条扫描线透明电极，数据 线驱动器，其根据显示图像的内容向每个数据线透明电极选择性地提供两个级别的第一电压信号中的一个;扫描线驱动器，其选择性地将三个电平的第二电压信号提供给每个扫描 根据控制信号生成线透明电极;以及电压供给电路，其将第一电压信号提供给数据线驱动器，将第二电压信号提供给扫描线驱动器。 电压供应电路从两个预定电压产生两个级别的第一电压信号，而不增加两个预定电压，并通过升高第二电压信号的两个电平来产生第三电压信号的三个电平的最高和最低电平 。