US Patent 7928652 Organic EL emitting layer having specific concentration profile
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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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Patent Inventor Names
Kazuki Kitamura0
Mitsugu Tamekawa0
Tetsuo Ishida0
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US Patent 07928652 Organic EL emitting layer having specific concentration profile US Patent 7928652 Organic EL emitting layer having specific concentration profile
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Patent Number
079286520
Patent Number
79286520
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Official Website
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Patent Jurisdiction
Patent Number
079286520
Date of Patent
April 19, 2011
0Patent Application Number
114592410
Date Filed
July 21, 2006
0Official Website
Patent Primary Examiner
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US Patent 07928652 Organic EL emitting layer having specific concentration profile
Infobox
Is a
Patent jurisdiction
Patent number
07928652
Date of patent
April 19, 2011
Patent application number
11459241
Date Filed
July 21, 2006
Patent primary examiner
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