Positioning of posts in liquid crystal valves for a projection display
device
    1.
    发明授权
    Positioning of posts in liquid crystal valves for a projection display device 失效
    用于投影显示装置的液晶阀中的柱的定位

    公开(公告)号:US06040888A

    公开(公告)日:2000-03-21

    申请号:US973734

    申请日:1997-11-14

    CPC分类号: H04N9/3105 G02F1/13394

    摘要: A liquid crystal display device having pillar-shaped spacers formed in pixel array regions is provided with improved display quality by preventing the degradation of contrast and the occurrence of residual images. A plurality of pillar-shape spacers formed in their pixel array regions are provided at locations which do not overlap with each other when images are projected on the screen using three different liquid crystal light valves to project the red (R), green (G) and blue (B), constituents of images.

    摘要翻译: PCT No.PCT / JP95 / 01031 Sec。 371日期:1997年11月14日 102(e)日期1997年11月14日PCT提交1995年5月29日PCT公布。 出版物WO96 / 38755 日期:1996年12月5日具有形成在像素阵列区域中的柱状间隔物的液晶显示装置通过防止对比度的劣化和残留图像的发生而具有改进的显示质量。 当使用三个不同的液晶光阀将图像投射到屏幕上以投影红色(R),绿色(G))时,在其像素阵列区域中形成的多个柱状间隔物设置在彼此不重叠的位置处, 和蓝色(B),图像的成分。

    Data line precharging apparatus and method for a liquid crystal display
    2.
    发明授权
    Data line precharging apparatus and method for a liquid crystal display 失效
    数据线预充电装置及液晶显示方法

    公开(公告)号:US5892493A

    公开(公告)日:1999-04-06

    申请号:US683738

    申请日:1996-07-17

    IPC分类号: G02F1/133 G09G3/20 G09G3/36

    摘要: The quality of an image is improved even if the duration of data voltage is short for application. A gate line driver 34 sequentially applies the gate voltage to a number of gate lines G1-Gm by predetermined duration. Data lines are grouped into four groups each consisting of n lines (d1A-dnA: group A, d1B-dnB: group B, d1C-dnC: group C, and d1D-dnD: group D). A data line driver 40 and a multiplexer 38 sequentially perform for the data line groups A-D in the above predetermined duration application of data voltage to each data line in a predetermined data line group. A precharge controller 44 and a voltage switching circuit 46 apply to each of the data line groups A-D, through a transistor 42, a precharge voltage (+V.sub.1 or -V.sub.1) with the same polarity with that of data voltage being applied next time during the time from previous application of the data voltage to next application of it.

    摘要翻译: 即使应用数据电压的持续时间短,图像的质量也会提高。 栅极线驱动器34依次将栅极电压施加到多条栅极线G1-Gm预定的持续时间。 数据线分为四组,每组由n行组成(d1A-dnA:组A,d1B-dnB:组B,d1C-dnC:组C和d1D-dnD:组D)。 数据线驱动器40和多路复用器38在预定的数据线组中的每条数据线的数据电压的上述预定持续时间内对于数据线组A-D顺序执行。 预充电控制器44和电压切换电路46通过晶体管42施加到每个数据线组AD,与在下一次施加的数据电压相同极性的预充电电压(+ V1或-V1) 从之前应用的数据电压到下一次应用的时间。