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Organic electroluminescent device employing multi-layered anode

  • US 7,190,111 B2
  • Filed: 03/12/2003
  • Issued: 03/13/2007
  • Est. Priority Date: 06/22/2002
  • Status: Expired due to Term
First Claim
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1. An organic electroluminescent (EL) device comprising:

  • a substrate;

    a first anode formed on the substrate, made of a reflective metal and having a reflectivity of 60% or higher;

    a second anode formed directly on the first anode, and made of a conductive metal or an oxide thereof having a work function of 4.3 to 5.8 eV;

    an organic layer formed on the second anode; and

    a cathode formed on the organic layer,wherein the first anode comprises at least one material selected from the group of materials consisting of Al, Al alloy, Ag, Ag alloy and alloys of these materials.

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