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Organic light-emitting device with a phosphor-sensitized fluorescent emission layer

  • US 7,579,773 B2
  • Filed: 06/05/2006
  • Issued: 08/25/2009
  • Est. Priority Date: 06/05/2006
  • Status: Active Grant
First Claim
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1. An organic light emitting device comprising:

  • a cathode,an emissive region, andan anodewherein,the emissive region comprises a fluorescent layer comprising a first fluorescent emitting material as a dopant in a host material;

    a phosphorescent-sensitized fluorescent layer comprising a second fluorescent emitting material and a phosphorescent emitting material as dopants in a host material; and

    a spacer layer between the fluorescent layer and the phosphorescent-sensitized fluorescent layer.

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