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    • 20. 再颁专利
    • Liquid crystal display device and method of driving the same
    • 液晶显示装置及其驱动方法
    • USRE40771E1
    • 2009-06-23
    • US09773870
    • 2001-02-02
    • Shinya TanakaTakayuki ShimadaTakashi OchiYuzuru KanemoriMikio Katayama
    • Shinya TanakaTakayuki ShimadaTakashi OchiYuzuru KanemoriMikio Katayama
    • G09G3/36
    • G09G3/3648G02F2001/13606G09G2300/043
    • A liquid crystal display device is formed by arranging a plurality of scanning lines 31, 32, . . . to which scanning signals are successively applied and a plurality of signal lines 41, 42, . . . to which data signals are successively applied to intersect at right angles. Mounted in the vicinity of each of the intersections of the scanning lines 31, 32, . . . and signals lines 41, 42, . . . are a TFT 5 electrically connected to both of the lines, and a pixel electrode 6 connected to the TFT 5. A common electrode is placed to face the pixel electrode 6 with liquid crystals 2 therebetween. One of electrodes of a pixel capacitance formed by the pixel electrode 6 is connected to a common line 9 for supplying a common signal to the common electrode 7. A dummy scanning line 30 for forming a capacitance is arranged outside of the scanning line 31 located at the outermost position on a scanning start side of scanning signal. In this structure, since an equal parasitic capacitance is generated in the pixels irrespectively of their positions, it is possible to eliminate defects, such as deterioration of display quality due to an appearance of a bright line in particular pixels.
    • 通过布置多条扫描线31,32而形成液晶显示装置。 。 。 依次施加扫描信号和多条信号线41,42,...。 。 。 连续施加数据信号以直角相交。 安装在扫描线31,32,32的每个交叉点附近。 。 。 和信号线41,42,...。 。 。 是与两条线电连接的TFT5以及与TFT5连接的像素电极6.公共电极配置在与像素电极6相对的液晶2的两侧。 由像素电极6形成的像素电容的电极中的一个连接到用于向公共电极7提供公共信号的公共线9.用于形成电容的虚拟扫描线30布置在位于 扫描信号的扫描开始侧的最外侧位置。 在该结构中,由于与像素的位置无关地在像素中产生相等的寄生电容,所以能够消除由特定像素的亮线的外观引起的显示品质恶化等缺陷。