Light-emitting device with water-and/or oxygen-absorbing layer and its production
AssigneeFUJIFILM Corporation
InventorMasayuki Mishima
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Abstract
A light-emitting device comprises a laminate structure having an anode substrate, an anode, at least one organic layer comprising a light-emitting layer, a cathode and a cathode substrate in this order, wherein a water- and/or oxygen-absorbing layer is located between the cathode substrate and the cathode.
Claims10
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 μm 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.
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 consisting of a reducing metal oxide and having a thickness in the range 10 nm to 1 μm, 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.
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 comprising a reducing metal oxide and having a thickness in the range 10 nm to 1 μm, 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.
Dependencies are inferred from the claim text.