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Light emitting device, display device and electronic instrument

  • US 6,791,115 B2
  • Filed: 03/06/2002
  • Issued: 09/14/2004
  • Est. Priority Date: 03/09/2001
  • Status: Expired due to Term
First Claim
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1. A light emitting device having a substrate and a light-emitting section provided on the substrate, and emitting light in a direction intersecting the substrate,wherein the light-emitting section includes a first side and a second side in a direction parallel to a surface of the substrate, and comprises:

  • a light-emitting layer in which light is generated by electro-luminescence;

    an electron transport layer and a hole transport layer with said light-emitting layer sandwiched therebetween;

    a first pair of electrode layers used to apply electrons to the light-emitting layer through said electron transport layer, wherein one of the first pair of electrode layers is formed on the first side of the light-emitting section and the other of the first pair of electrode layers is formed on the second side of the light-emitting section;

    a second pair of electrode layers used to apply holes to the light-emitting layer through said hole transport layer, wherein one of the second pair of electrode layers is formed on the first side of the light-emitting section and the other of the second pair of electrode layers is formed on the second side of the light-emitting section; and

    first and second dielectric multi-layered films between which the light-emitting layer is interposed, wherein a first gate electrode is disposed in the first dielectric multi-layered film, and a second gate electrode is disposed in the second dielectric multi-layered film, wherein the first and second pairs of electrode layers are disposed to avoid overlap with a light-emitting region in the light-emitting layer, as viewed from the light emitting direction.

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