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Drive circuit, display apparatus, and information display apparatus

  • US 20040066357A1
  • Filed: 08/29/2003
  • Published: 04/08/2004
  • Est. Priority Date: 09/02/2002
  • Status: Active Grant
First Claim
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1. A drive circuit comprising:

  • a pixel circuit having a driven clement and a current-drive transistor for supplying a current for driving the driven element to a current injection terminal of the driven element;

    a voltage buffer;

    a current signal line for supplying a current signal to the pixel circuit; and

    a wiring for connecting an output of the voltage buffer and a gate electrode of the current-drive transistor, wherein the pixel circuit has a switch for controlling the connection between the voltage buffer and the gate electrode of the current-drive transistor; and

    an input terminal of the voltage buffer is connected to the current signal line.

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