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Laminated thick film dielectric structure for thick film dielectric electroluminescent displays

  • US 7,915,803 B2
  • Filed: 04/25/2008
  • Issued: 03/29/2011
  • Est. Priority Date: 04/30/2007
  • Status: Expired due to Fees
First Claim
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1. An electroluminescent display comprising an improved composite thick film dielectric structure, said structure comprising;

  • a composite thick film dielectric layer;

    one or more layers of aluminum oxide or aluminum oxide doped with other atomic species provided on the top surface of said composite thick film dielectric layer, said material sufficiently thick to act as a barrier to deleterious ions and also be minimally electrically conductive;

    a thin film phosphor layer;

    wherein at least of one said one or more layers of said aluminum oxide or aluminum oxide doped with other atomic species is not in direct contact with said phosphor layer.

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