Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jian Li0
Date of Patent
May 17, 2022
Patent Application Number
15487476
Date Filed
April 14, 2017
Patent Citations
...
Patent Citations Received
Patent Primary Examiner
The present invention relates to organic light emitting devices with a multi-emissive material layer (EML), where a multi-EML generally refers to an emissive layer having at least two layers of emissive material, each layer having a different emitter concentration (e.g. a first EML in direct contact with a second EML, and the emitter concentration of the first EML (hole favorable) exceeds that of the second EML (electron favorable)).
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