Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 21, 2006
Patent Application Number
10902176
Date Filed
July 30, 2004
Patent Primary Examiner
Patent abstract
An organic electroluminescent device includes an anode, a light-emitting layer, and a cathode, which has a structure formed by sequentially laminating, from the light-emitting layer side, a first cathode formed of a material having a work function of 3.0 eV or less, and a second cathode, formed of a material having a work function higher than that of the first cathode, so that the total thickness of the first and the second cathodes is 100 angstroms or less. These elements are stacked on a substrate, and light is emitted to an exterior of the device via at least the cathode.
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