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Stacked white OLED having separate red, green and blue sub-elements

  • US 9,065,067 B2
  • Filed: 05/27/2014
  • Issued: 06/23/2015
  • Est. Priority Date: 10/28/2008
  • Status: Active Grant
First Claim
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1. An organic light emitting device comprising in order:

  • a cathode;

    a blue-emitting sub-element comprising an emissive layer comprising a phosphorescent blue emissive material;

    a charge-generating layer;

    a green-emitting sub-element comprising an emissive layer comprising a phosphorescent green emissive material;

    a charge-generating layer;

    a red-emitting sub-element comprising an emissive layer comprising a phosphorescent red emissive material;

    and an anode;

    wherein a combined emission of the emissive materials gives a white emission from the device.

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