Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 11, 2014
Patent Application Number
12991381
Date Filed
March 31, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method of manufacturing an organic light emissive device comprising: depositing an organic light emissive layer over an anode and depositing a cathode over the organic light emissive layer, wherein the cathode comprises a trilayer structure formed by: depositing a first layer comprising an electron injecting material; depositing a second layer over the first layer, the second layer comprising a metallic material having a workfunction greater than 3.5 eV; and depositing a third layer over the second layer, the third layer comprising a metallic material having a workfunction greater than 3.5 eV.
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