Pixel circuit and display device

Pixel circuit and display device

  • CN 101,246,661 B
  • Filed: 02/13/2008
  • Issued: 07/18/2012
  • Est. Priority Date: 02/14/2007
  • Status: Active Grant
First Claim
Patent Images

1. organic electroluminescent image element circuit comprises:

  • Switching transistor, its conducting is offered the control of the drive signal of control terminal;

    Driving transistors, its grid are connected to second terminal of said switching transistor;

    Drive distribution, be used to transmit said drive signal;

    Data wiring is used for data signal;

    AndPhotovalve, its brightness changes along with the mobile variation of electric current, wherein,Said driving distribution is formed on first wiring layer and is connected to the said control terminal of said switching transistor,Said data wiring is formed on second wiring layer and is connected to first terminal of said switching transistor, andUse multi-layer wiring structure;

    So that said second wiring layer be formed on its on be formed with on the different layer of layer of said first wiring layer;

    Short circuit appears in the place, point of crossing to avoid said driving distribution and said data wiring;

    The gate source voltage of said driving transistors keeps constant between the light emission period of said photovalve, and the electric current that flows through said photovalve remains unchanged.

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