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    • 77. 发明授权
    • Display and the method of driving the same
    • 显示及其驱动方法
    • US5337070A
    • 1994-08-09
    • US922397
    • 1992-07-31
    • Masaaki KitajimaIkuo HiyamaYoshiharu Nagae
    • Masaaki KitajimaIkuo HiyamaYoshiharu Nagae
    • G02F1/133G09G3/20G09G3/36G09G3/00
    • G09G3/2092G09G3/2011G09G3/3688G09G2310/027G09G2310/0297G09G3/3614
    • A method of driving a gray scale and a drive circuit therefor are provided in which the simplification and reduction of the operating speed of a circuit for generating display voltages in a matrix display device are promoted, and low cost and multi-color display of high minuteness are simultaneously realized. The display circuit for generating the display voltages is composed of an image signal processing circuit for dividing an input digital image signal into plural bit groups, a first display voltage generating circuit for generating the display voltages corresponding to the first bit group obtained by the division, a second display voltage generating circuit for generating the display voltages corresponding to the second bit group obtained by the division, and a line-at-a-time timing circuit. The first and second display voltage generating circuits are operated in parallel to combine the outputs thereof with one another, thereby to generate a gray scale displaying voltage.
    • 提供了一种驱动灰度的方法及其驱动电路,其中促进了在矩阵显示装置中产生显示电压的电路的操作速度的简化和降低,并且低成本和高色彩的多色显示 同时实现。 用于产生显示电压的显示电路由用于将输入数字图像信号分成多个位组的图像信号处理电路组成,用于产生与通过分割获得的第一位组相对应的显示电压的第一显示电压产生电路, 第二显示电压产生电路,用于产生与通过除法获得的第二位组相对应的显示电压,以及一个时间线定时电路。 第一和第二显示电压发生电路并联操作以将其输出彼此组合,从而产生灰度显示电压。
    • 79. 发明授权
    • Liquid crystal display device
    • 液晶显示装置
    • US08134664B2
    • 2012-03-13
    • US12019708
    • 2008-01-25
    • Daisuke KajitaIkuo HiyamaShintaro Takeda
    • Daisuke KajitaIkuo HiyamaShintaro Takeda
    • G02F1/1335G02F1/1343
    • G02F1/13363G02F1/134363G02F2001/133635G02F2413/02
    • The liquid crystal display device according to this invention comprises: a first substrate having a first polarization layer on a light incident side; a second substrate having a second polarization layer on a light outgoing side; a first birefringent medium disposed between the first polarization layer and the liquid crystal layer; a second birefringent medium disposed between the second polarization layer and the liquid crystal layer; a pixel electrode and a common electrode arranged on one of the first substrate and the second substrate; wherein an absorbing axis of the first polarization layer and an absorbing axis of the second polarization layer form an angle of from 88 degrees to 92 degrees; wherein the liquid crystal layer has a property that an in-plane refractive index anisotropy is induced in the liquid crystal layer by an electric field produced by the pixel electrode and the common electrode.
    • 根据本发明的液晶显示装置包括:具有在光入射侧的第一偏振层的第一基板; 第二基板,在光出射侧具有第二偏振层; 布置在所述第一偏振层和所述液晶层之间的第一双折射介质; 布置在所述第二偏振层和所述液晶层之间的第二双折射介质; 设置在第一基板和第二基板之一上的像素电极和公共电极; 其中所述第一偏振层的吸收轴和所述第二偏振层的吸收轴形成88度至92度的角度; 其中液晶层具有通过像素电极和公共电极产生的电场在液晶层中引起面内折射率各向异性的性质。