Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Naoki Yamada0
Keiji Okinaka0
Koichi Suzuki0
Masataka Yashima0
Akihiro Senoo0
Akihito Saitoh0
Kazunori Ueno0
Date of Patent
October 20, 2009
0Patent Application Number
111752060
Date Filed
July 7, 2005
0Patent Primary Examiner
Patent abstract
It is an object of the present invention to provide an organic light emitting device having a long-life optical output. The organic light emitting device according to the present invention is provided with an emission layer including at least a host material, a light emitting material, and another material, wherein the another material has a smaller ionization potential than and almost the same hole mobility as or a greater hole mobility than an ionization potential and a hole mobility of a compound which forms an emission layer-side-interface.
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