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    • 6. 发明申请
    • DISPLAY DEVICE AND DRIVING METHOD OF THE SAME
    • 显示装置及其驱动方法
    • US20090167743A1
    • 2009-07-02
    • US12241641
    • 2008-09-30
    • Joon-Chul GOHYoung-Soo YOONChong-Chul CHAI
    • Joon-Chul GOHYoung-Soo YOONChong-Chul CHAI
    • G09G5/00G09G3/30
    • G09G3/3233G09G3/3266G09G2300/0819G09G2300/0852G09G2300/0861G09G2320/043
    • A display device having a plurality of pixels, each pixel includes a light-emitting element, a storage capacitor, a driving transistor, a first switching transistor which supplies a data voltage to the storage capacitor in response to an on-voltage of a scanning signal, a second switching transistor which diode-connects the driving transistor in response to an on-voltage of a compensation signal, and a third switching transistor which supplies a driving voltage to the driving transistor in response to an on-voltage of a light emitting signal. The storage capacitor stores a control voltage depending on a threshold voltage of the driving transistor when the driving transistor is diode-connected, transmits the control voltage and the data voltage to the control terminal of the driving transistor, and a period in which the compensation signal is in an on-voltage state is longer than a period in which the scanning signal is in an on-voltage state.
    • 具有多个像素的显示装置,每个像素包括发光元件,存储电容器,驱动晶体管,第一开关晶体管,其响应于扫描信号的导通电压而向存储电容器提供数据电压 ,响应于补偿信号的导通电压二极管连接驱动晶体管的第二开关晶体管,以及响应于发光信号的导通电压向驱动晶体管提供驱动电压的第三开关晶体管 。 存储电容器存储当驱动晶体管被二极管连接时取决于驱动晶体管的阈值电压的控制电压,将控制电压和数据电压传送到驱动晶体管的控制端,以及补偿信号 处于导通电压状态的时间长于扫描信号处于导通电压状态的周期。