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Light emitting device

  • US 8,324,618 B2
  • Filed: 03/28/2012
  • Issued: 12/04/2012
  • Est. Priority Date: 11/09/2001
  • Status: Expired due to Term
First Claim
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1. A light emitting device comprising:

  • a first wiring;

    a second wiring;

    a first transistor over a substrate;

    a second transistor over the substrate;

    an insulating film over the second transistor;

    a first electrode over the insulating film;

    an organic compound layer over the first electrode;

    a second electrode over the organic compound layer;

    a silicon nitride film over the second electrode; and

    wherein the first transistor comprises a first channel region and a second channel region, a first gate and a second gate corresponding to the first channel region and the second channel region respectively,wherein the first wiring is directly connected to the first gate and the second gate of the first transistor,wherein the second wiring is directly connected to one of a source and a drain of the second transistor,wherein one of a source and a drain of the first transistor is directly connected to a gate of the second transistor,wherein a channel width of the second transistor is smaller than a channel length of the second transistor, andwherein the first wiring is parallel to the second wiring.

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