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    • 1. 发明授权
    • Display device and driving method thereof
    • 显示装置及其驱动方法
    • US09093027B2
    • 2015-07-28
    • US13751263
    • 2013-01-28
    • Guang hai JinDong-Gyu KimKwan-Wook JungHo-Young KimJune-Woo LeeIn-Ho Choi
    • Guang hai JinDong-Gyu KimKwan-Wook JungHo-Young KimJune-Woo LeeIn-Ho Choi
    • G09G3/32
    • G09G3/3233G09G3/3291G09G2300/0852G09G2300/0861
    • A display device includes a plurality of pixels, each pixel including an organic light emitting diode (OLED) and a driving transistor, a sustain power supply unit applying a first sustain voltage to a plurality of data lines connected to the plurality of pixels, and a data driver applying one of a data signal and a second sustain voltage to the plurality of data lines. For each pixel, the sustain power supply unit applies the first sustain voltage as a first level voltage to reset a gate voltage of the driving transistor and applies the first sustain voltage as a second level voltage to increase the gate voltage of the driving transistor. When an anode voltage of the OLED in each pixel is discharged to be reset, the anode voltage of the OLED is controlled according to a voltage difference between the first level voltage and the second level voltage.
    • 显示装置包括多个像素,每个像素包括有机发光二极管(OLED)和驱动晶体管,维持电源单元对连接到多个像素的多个数据线施加第一维持电压,以及 数据驱动器将数据信号和第二维持电压中的一个施加到多条数据线。 对于每个像素,维持电源单元施加第一维持电压作为第一电平电压以复位驱动晶体管的栅极电压,并施加第一维持电压作为第二电平电压以增加驱动晶体管的栅极电压。 当每个像素中的OLED的阳极电压被放电以被复位时,OLED的阳极电压根据第一电平电压和第二电平电压之间的电压差来控制。