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    • 7. 发明申请
    • PIXEL CIRCUIT OF A FLAT PANEL DISPLAY DEVICE AND METHOD OF DRIVING THE SAME
    • 平板显示装置的像素电路及其驱动方法
    • US20110273419A1
    • 2011-11-10
    • US12944641
    • 2010-11-11
    • Dong-Wook ParkKi-Ju ImKi-Wook KimYeon-Gon MoHui-Won Yang
    • Dong-Wook ParkKi-Ju ImKi-Wook KimYeon-Gon MoHui-Won Yang
    • G09G5/00G09G3/30
    • G09G3/30G09G3/3233G09G5/00G09G2300/0819G09G2300/0842G09G2300/0852G09G2300/0861G09G2320/0223G09G2320/0295G09G2320/043G09G2320/048
    • A pixel circuit of a flat panel display device and a method for driving thereof are provided. The pixel circuit includes a first transistor having a first gate electrode coupled to a scan line, a second electrode coupled to a data line, a second gate electrode coupled to a controlling signal line, and a first electrode, a second transistor having a first gate electrode coupled to the first electrode of the first transistor, a second electrode coupled to a first voltage source, a second gate electrode coupled to the controlling signal line, and a first electrode, a capacitor coupled between the first gate electrode of the second transistor and the first electrode of the second transistor, and an organic light emitting diode coupled between the first electrode of the second transistor and a second voltage source, in which the threshold voltage of the first and second transistors may be controlled to the required level by supplying a controlling signal of a fixed voltage level to the second gate electrodes of the first and second transistors through the controlling signal line.
    • 提供了一种平板显示装置的像素电路及其驱动方法。 像素电路包括第一晶体管,其具有耦合到扫描线的第一栅极电极,耦合到数据线的第二电极,耦合到控制信号线的第二栅电极和第一电极,具有第一栅极的第二晶体管 耦合到第一晶体管的第一电极的第二电极,耦合到第一电压源的第二电极,耦合到控制信号线的第二栅电极,以及耦合在第二晶体管的第一栅电极和第二电极之间的电容器, 第二晶体管的第一电极和耦合在第二晶体管的第一电极和第二电压源之间的有机发光二极管,其中第一和第二晶体管的阈值电压可以通过提供第一电极而被控制到所需的电平 通过控制信号线将固定电压电平的信号控制到第一和第二晶体管的第二栅电极。