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Light-emitting device with water-and/or oxygen-absorbing layer and its production

  • US 7,622,862 B2
  • Filed: 08/14/2003
  • Issued: 11/24/2009
  • Est. Priority Date: 08/14/2002
  • Status: Expired due to Term
First Claim
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1. A light-emitting device comprising in order an anode substrate, an anode, at least one organic layer comprising a light-emitting layer and further comprising at least one polymer, a cathode, at least one water- and oxygen-absorbing layer having a thickness in the range 10 nm to 1 μ

  • m and consisting essentially of a reducing metal oxide, and a cathode substrate, wherein said water- and oxygen-absorbing layer is formed directly adjacent to said cathode, wherein the reducing metal oxide is an oxide in which an atom bonded to oxygen has a smaller oxidation number than its valency.

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