Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jui-Yi Tsai0
Chun Lin0
Cory S. Brown0
Jun Deng0
Peter B. Mackenzie0
Robert W. Walters0
Date of Patent
June 9, 2015
0Patent Application Number
112419810
Date Filed
October 4, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Organic light emitting materials and devices comprising phosphorescent metal complexes comprising ligands comprising aryl or heteroaryl groups substituted at both ortho positions are described. An organic light emitting device, comprising: an anode; a hole transport layer; an organic emissive layer comprising an emissive layer host and an emissive dopant; an electron impeding layer; an electron transport layer; and a cathode disposed, in that order, over a substrate.
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