Driving method of display device

Driving method of display device

  • CN 1,848,223 B
  • Filed: 03/17/2006
  • Issued: 03/05/2014
  • Est. Priority Date: 03/18/2005
  • Status: Active Grant
First Claim
Patent Images

1. a driving method that comprises the display device of pixel, described display device comprises:

  • Light-emitting component;

    There is gate terminal, first end and the second end and for driving the driving transistors of described light-emitting component;

    Data line;

    Power lead;

    Capacitor, for keeping the gate terminal of described driving transistors and the potential difference (PD) between described data line;

    AndMake the gate terminal of described driving transistors and the switch of the part conducting/not conducting between the second end,Wherein, the first end of described driving transistors is electrically connected to described power lead, and the second end of described driving transistors is electrically connected on the pixel electrode of described light-emitting component,Described driving method comprises;

    In the signal during writing of pixel at write signal in pixel time, by described switch, make the gate terminal of described driving transistors and the part conducting between the second end, incoming video signal is to described data line, and input the first current potential to described power lead, the voltage difference between wherein said the first current potential and the comparative electrode of described light-emitting component equals or higher than the forward threshold voltage of described light-emitting component;

    When completing the signal of a frame period pixel region, write fashionable, by described switch, make the gate terminal of described driving transistors and the not conducting of part between the second end, and input the second current potential to described power lead, the voltage difference between wherein said the second current potential and described light-emitting component comparative electrode is less than the forward threshold voltage of described light-emitting component;

    AndSubsequently, the current potential of changing between the light emission period of described pixel described data line input with analog form, and input described the first current potential to described power lead.

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