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Image display device and electronic appliance

  • US 9,818,340 B2
  • Filed: 03/10/2011
  • Issued: 11/14/2017
  • Est. Priority Date: 08/18/2006
  • Status: Active Grant
First Claim
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1. An image display device comprising:

  • scanning lines arranged in rows;

    signal lines arranged in columns;

    a scanner part configured to supply a control signal to the scanning lines; and

    pixel circuits in a matrix connected to the scanning lines and the signal lines,wherein at least one of the pixel circuits includes a sampling transistor, a drive transistor, a pixel capacitor, a light emitting device, a first switching transistor directly connected between a first voltage line and the pixel capacitor, a second switching transistor directly connected between a second voltage line and the light emitting device, and a third switching transistor directly connected between a third voltage line and the drive transistor,the sampling transistor is configured to supply a signal potential from the signal line to the pixel capacitor,the pixel capacitor connected between a current terminal and a control terminal of the drive transistor, anda channel length of the drive transistor is made longer than a channel length of each of the three switching transistors and transistors in the scanner part.

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