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热词
    • 91. 发明公开
    • Electroluminescent display device, pixel circuit therefor, and driving method thereof
    • Elektrolumineszenzanzeigevorrichtung und Pixelschaltungdafür
    • EP1585100A1
    • 2005-10-12
    • EP05101764.8
    • 2005-03-08
    • Samsung SDI Co., Ltd.
    • Kim, Yang-Wan Samsung SDI Co.Ltd. Legal & IP TeamOh, Choon-Yul Samsung SDI Co.Ltd. Legal & IP Team
    • G09G3/32
    • G09G3/3233G09G2300/043G09G2300/0819G09G2300/0852G09G2300/0861G09G2310/0262G09G2320/043
    • A light emission display includes data lines, scan lines, and pixel circuits. A pixel circuit of the pixel circuits includes: a light emission element; a first transistor including a control electrode and first and second electrodes, the first transistor outputting a current corresponding to a voltage between the first electrode and the control electrode; a first switch coupled between the control electrode of the first transistor and the light emission element and for receiving a first control signal; a first capacitor coupled to the first transistor; a second capacitor coupled between a first power source and the first capacitor; a second switch for coupling the first capacitor and a second power source in response to a second control signal; and a third switch for applying a data voltage to the first capacitor in response to a select signal provided by one of the scan lines. Short-range transistor threshold voltage variations from pixel to pixel as well as long-range voltage drop on first power line across the display are both reduced.
    • 发光显示器包括数据线,扫描线和像素电路。 像素电路的像素电路包括:发光元件; 第一晶体管,包括控制电极和第一和第二电极,所述第一晶体管输出对应于所述第一电极和所述控制电极之间的电压的电流; 耦合在第一晶体管的控制电极和发光元件之间并用于接收第一控制信号的第一开关; 耦合到所述第一晶体管的第一电容器; 耦合在第一电源和第一电容器之间的第二电容器; 用于响应于第二控制信号耦合第一电容器和第二电源的第二开关; 以及第三开关,用于响应于由所述扫描线之一提供的选择信号而将数据电压施加到所述第一电容器。 从显示器到第一电源线的像素间的短距离晶体管阈值电压变化以及第一条电源线上的远距离电压降均降低。