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Electro-optical device and electronic device

  • US 7,642,559 B2
  • Filed: 10/27/2005
  • Issued: 01/05/2010
  • Est. Priority Date: 06/04/1999
  • Status: Expired due to Fees
First Claim
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1. A light emitting device comprising:

  • a substrate;

    a source wiring over the substrate;

    a gate wiring intersecting with the source wiring, over the substrate;

    a switching element, wherein a gate electrode of the switching element is electrically connected to the gate wiring and a first electrode of the switching element is electrically connected to the source wiring;

    a current control element comprising at least two thin film transistors, and electrically connected to an electric current supply line; and

    an electroluminescence element electrically connected to the current control element,wherein the at least two thin film transistors and the electroluminescence element are connected in series, andwherein gate electrodes of the at least two thin film transistors are electrically connected to a second electrode of the switching element.

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