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Fluorescent filtered electrophosphorescence

  • US 20060273714A1
  • Filed: 06/01/2005
  • Published: 12/07/2006
  • Est. Priority Date: 06/01/2005
  • Status: Active Grant
First Claim
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1. An organic light emitting device comprising:

  • a cathode, an emissive region, and an anode wherein, the emissive region comprises a fluorescent layer comprising a fluorescent emitting material as a dopant in a host material, and a phosphorescent layer comprising a phosphorescent emitting material as a dopant in a host material;

    and wherein greater than about 50% of the excitons are generated in the fluorescent layer.

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