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Organic EL element and method of forming the same

  • US 7,301,278 B2
  • Filed: 12/16/2004
  • Issued: 11/27/2007
  • Est. Priority Date: 12/19/2003
  • Status: Active Grant
First Claim
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1. An organic EL element comprising:

  • a first wiring electrode;

    a second wiring electrode;

    a plurality of light-emitting units which exhibit organic EL luminescence and at least two different luminous colors, each of the plurality of light-emitting units being connected in series between the first wiring electrode and the second wiring electrode; and

    a light-emitting surface formed by overlapping partly or wholly light-emitting surfaces of the light-emitting units,wherein the plurality of light-emitting units comprise light-emitting units which exhibit one color and are formed in multiple stages, and a desired mixed color is obtained from the light-emitting surface by combining the different luminous colors,wherein each of the plurality of light-emitting units comprises at least one conductive layer and an organic luminescent function layer being connected to the conductive layer.

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