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Emissive layer patterning for OLED

  • US 8,053,770 B2
  • Filed: 10/12/2009
  • Issued: 11/08/2011
  • Est. Priority Date: 10/14/2008
  • Status: Active Grant
First Claim
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1. A device, comprising:

  • a first subpixel;

    a second subpixel;

    an anode;

    a cathode;

    wherein at least one of the anode and the cathode has independently addressable first and second regions corresponding to the first and second subpixels;

    an emissive stack disposed between the anode and the cathode, the emissive stack further comprising;

    a first organic emissive layer disposed between the anode and the cathode, the first organic emissive layer extending throughout the first and second regions;

    a second organic emissive layer disposed between the anode and the cathode, the second organic emissive layer extending throughout the second region but not the first region, wherein the second organic emissive layer is disposed closer to the cathode than the first organic emissive layer;

    wherein the first organic emissive layer is emissive in the first region, and the second organic emissive layer is emissive in the second region.

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