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    • 9. 发明申请
    • PIXEL DEFINITION LAYER AND MANUFACTURING METHOD THEREOF, DISPLAY SUBSTRATE AND DISPLAY DEVICE
    • 像素定义层及其制造方法,显示基板和显示设备
    • US20150004375A1
    • 2015-01-01
    • US14345622
    • 2013-12-09
    • BOE TECHNOLOGY GROUP CO., LTD.
    • Wenjun HouZe Liu
    • H01L51/56H05K3/12
    • H01L51/0014H01L27/3246H01L51/0005H01L51/56H05K3/185H05K2203/0709
    • A pixel circuit, driving method thereof, organic light-emitting display panel and display apparatus, comprise driving transistor, first storage capacitor, collecting unit, writing unit and light-emitting unit; the collecting unit is used for collecting the threshold voltage of the driving transistor and storing the threshold voltage into the first storage capacitor, under the control of the first scan signal; the writing unit is used for storing the data voltage inputted from the input terminal for the data voltage under the control of the second scan signal; and the light-emitting unit is used for emitting lights, driven by the data voltage and a voltage inputted from the input terminal for the controllable low voltage, under the control of the light-emitting control signal. Thus, the organic light-emitting device is not affected by the threshold voltage shift of the driving transistor, which may enhance the image uniformity of the organic light-emitting display panel effectively.
    • 像素电路,其驱动方法,有机发光显示面板和显示装置,包括驱动晶体管,第一存储电容器,收集单元,写入单元和发光单元; 收集单元用于在第一扫描信号的控制下收集驱动晶体管的阈值电压并将阈值电压存储到第一存储电容器中; 写入单元用于在第二扫描信号的控制下存储从数据电压输入端输入的数据电压; 并且发光单元用于在发光控制信号的控制下由数据电压和从输入端子输入的可控低电压的电压驱动的光。 因此,有机发光器件不受驱动晶体管的阈值电压偏移的影响,这有效地提高了有机发光显示面板的图像均匀性。