Scan driving circuit and driving method for active matrix liquid crystal display
    1.
    发明授权
    Scan driving circuit and driving method for active matrix liquid crystal display 有权
    有源矩阵液晶显示器的扫描驱动电路及驱动方法

    公开(公告)号:US06801182B2

    公开(公告)日:2004-10-05

    申请号:US09969997

    申请日:2001-10-04

    IPC分类号: G09G336

    摘要: A scan driving circuit and driving method for active matrix liquid crystal display is disclosed. The scan driving circuit comprises a switching circuit including a plurality of low-temperature poly-silicon MOS devices of same conductivity type formed on the liquid crystal display panel and a plurality of control signal input ports connected to the switching circuit, in which the number of the control signal input ports is less than that of the scan lines of the liquid crystal display panel, and the switching circuit is coupled between the scan lines and the control signal input ports. The driving method comprises providing a plurality of control signals consisted of sequential or back-and-forth pulses coupled to the control signal input ports from outside of the panel for operation of the switching circuit to drive the scan lines.

    摘要翻译: 公开了一种用于有源矩阵液晶显示器的扫描驱动电路和驱动方法。 扫描驱动电路包括切换电路,其包括形成在液晶显示面板上的多个具有相同导电类型的低温多晶硅MOS器件和连接到开关电路的多个控制信号输入端口,其中, 控制信号输入端口小于液晶显示面板的扫描线的输入端口,并且开关电路耦合在扫描线和控制信号输入端口之间。 该驱动方法包括提供多个控制信号,该控制信号由从面板外部耦合到控制信号输入端口的顺序或反向脉冲组成,用于操作切换电路以驱动扫描线。

    Automatic gamma correction system for displays
    2.
    发明授权
    Automatic gamma correction system for displays 有权
    显示器的自动伽马校正系统

    公开(公告)号:US06593934B1

    公开(公告)日:2003-07-15

    申请号:US09714473

    申请日:2000-11-16

    IPC分类号: G09G502

    摘要: This invention is related to an automatic Gamma correction system in which a novel display driving circuitry is designed with a digital/analog converter (DAC), wherein the Gamma reference voltages as well as the corresponding gray-scale values are adjustable. Therefore, the present invention provides a greater degree of freedom for the realization of the correction of Gamma parameters so as to fit the curve representing the transfer function of the destination gray-scale values and the voltages required by the display driving circuitry.

    摘要翻译: 本发明涉及一种自动伽马校正系统,其中新的显示驱动电路被设计有数字/模拟转换器(DAC),其中伽马参考电压以及对应的灰度值是可调节的。 因此,本发明为实现伽马参数的校正提供了更大的自由度,以便拟合表示目标灰度值的传递函数的曲线和显示驱动电路所需的电压。

    Multistage charging circuit for driving liquid crystal displays
    3.
    发明授权
    Multistage charging circuit for driving liquid crystal displays 有权
    用于驱动液晶显示器的多级充电电路

    公开(公告)号:US06483494B1

    公开(公告)日:2002-11-19

    申请号:US09578000

    申请日:2000-05-24

    IPC分类号: G09G336

    摘要: Disclosed is a multistage charging circuit for driving liquid crystal displays, designed particularly to provide a multistage charging driving circuit for liquid crystal display, in which the pixels can be pre-charged to a determined voltage value before the next data are written by performing charge-sharing and pre-charge. Due to the fact that the voltage and the next data have the same polarity, the problems resulted from gray-scale voltage imprecision and latch up at the output can be prevented and thus high gray-scale precision and low power dissipation can be achieved.

    摘要翻译: 公开了用于驱动液晶显示器的多级充电电路,其特别设计为提供用于液晶显示器的多级充电驱动电路,其中可以通过执行充电状态来在下一个数据被写入之前将像素预先充电到确定的电压值, 共享和预收费。 由于电压和下一个数据具有相同的极性,因此可以防止灰度电压不精确和在输出端锁存的问题,从而可以实现高灰度精度和低功耗。