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Organic electroluminescent display device having a planarizing layer and manufacturing method thereof

  • US 7,733,015 B2
  • Filed: 08/11/2006
  • Issued: 06/08/2010
  • Est. Priority Date: 08/23/2005
  • Status: Active Grant
First Claim
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1. An organic EL display device comprising:

  • light-emitting elements each having a laminate comprising a lower electrode, an organic layer comprising at least a light-emitting layer, and an upper electrode;

    switching elements for controlling light emission and non-light emission of the light-emitting elements; and

    a planarizing layer, which is disposed over the switching elements and under the lower electrodes,wherein the planarizing layer comprises a polymer formed by polymerizing at least one oligomer such that the planarizing layer retains not more than 5% by weight of the at least one oligomer in a non-polymerized form.

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