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Light emitting device including EL elements for emitting lights of different colors

  • US 7,915,808 B2
  • Filed: 03/17/2008
  • Issued: 03/29/2011
  • Est. Priority Date: 06/05/2000
  • Status: Expired due to Term
First Claim
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1. A light emitting device comprising:

  • a first EL element for emitting a first light; and

    a second EL element for emitting a second light,wherein each of the first light and the second light has a different color,wherein the first EL element comprises a triplet compound, andwherein the second EL element comprises a singlet compound.

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