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Light emitting device and method of fabricating the same

  • US 9,608,225 B2
  • Filed: 01/21/2010
  • Issued: 03/28/2017
  • Est. Priority Date: 01/21/2010
  • Status: Active Grant
First Claim
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1. A light emitting device comprising:

  • a first electrode on a substrate;

    a first emission layer on the first electrode;

    a buffer layer on the first emission layer;

    a middle electrode directly disposed on the buffer layer;

    a second emission layer on the middle electrode; and

    a second electrode on the second emission layer,wherein the buffer layer includes a hole transporting polymer,wherein the middle electrode includes a conductive polymer different from the hole transporting polymer, andwherein the hole transporting polymer is represented by one of the following Chemical Formulae 1 to 3;

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