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    Active-matrix type liquid crystal display device and method of compensating for defective pixel
    36.
    发明授权
    Active-matrix type liquid crystal display device and method of compensating for defective pixel 失效
    有源矩阵型液晶显示装置及补偿缺陷像素的方法

    公开(公告)号：US06175393B1

    公开(公告)日：2001-01-16

    申请号：US08700172

    申请日：1996-08-20

    申请人： Atsushi Ban ,  Takayuki Shimada ,  Mikio Katayama

    发明人： Atsushi Ban ,  Takayuki Shimada ,  Mikio Katayama

    IPC分类号： G02F11343

    CPC分类号： G02F1/136286 ,  G02F2001/136272

    摘要： Auxiliary lines are formed under pixel electrodes so as to be parallel to signal lines. The auxiliary lines are connected to the signal lines at one point for each pixel. This permits a voltage to be kept applying to a signal line even if a disconnection defect occurs in the signal line by making a circuit around a disconnected portion by the auxiliary line. Moreover, if a leakage defect occurs at a crossing point between the scanning line and the signal line, the signal line would be cut off on both sides of the scanning line. This also permits a voltage to be kept applying to the signal line by the auxiliary line. By setting the auxiliary lines narrower than the signal line, a reduction in aperture ratio can be suppressed, and by adopting the auxiliary lines made of a transparent electrically conductive material such as ITO, etc., it is possible to prevent the reduction in aperture ratio due to the auxiliary lines. The described arrangement permits a generation of a line-shaped defect due to disconnection to be prevented while improving an aperture ratio of the pixel with ease.

    摘要翻译： 辅助线形成在像素电极下方以与信号线平行。 辅助线在每个像素的一点连接到信号线。 即使通过辅助线路使分离部分周围的电路在信号线中发生断线缺陷，也允许电压保持施加到信号线。 此外，如果在扫描线和信号线之间的交叉点发生泄漏缺陷，则信号线将在扫描线的两侧被切断。 这也允许通过辅助线将电压保持施加到信号线。 通过设置比信号线窄的辅助线，可以抑制开口率的降低，并且通过采用由ITO等透明导电材料制成的辅助线，可以防止开口率的降低 由于辅助线路。 所述布置允许由于断开而产生线状缺陷，从而能够容易地改善像素的开口率。

    Liquid crystal display device and method of driving the same
    37.
    再颁专利
    Liquid crystal display device and method of driving the same 有权
    液晶显示装置及其驱动方法

    公开(公告)号：USRE40771E1

    公开(公告)日：2009-06-23

    申请号：US09773870

    申请日：2001-02-02

    申请人： Shinya Tanaka ,  Takayuki Shimada ,  Takashi Ochi ,  Yuzuru Kanemori ,  Mikio Katayama

    发明人： Shinya Tanaka ,  Takayuki Shimada ,  Takashi Ochi ,  Yuzuru Kanemori ,  Mikio Katayama

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3648 ,  G02F2001/13606 ,  G09G2300/043

    摘要： 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.

    摘要翻译： 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。