Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mitsugu Tamekawa0
Tetsuo Ishida0
Kazuki Kitamura0
Date of Patent
April 19, 2011
0Patent Application Number
114592410
Date Filed
July 21, 2006
0Patent Primary Examiner
Patent abstract
An organic EL element includes a pair of electrodes and an emitting layer interposed therebetween. The emitting layer is made of a mixture containing a host material and a dopant material. In the emitting layer, a concentration profile of the dopant material along a thickness direction includes at least two relative maximums or at least two relative minimums.
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