US Patent 8987715 Organic electroluminescence element
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Patent abstract
An organic electroluminescence device (1) includes: an anode (3); a cathode (4); and an emitting layer (5) provided between the anode (3) and the cathode (4). The emitting layer contains a first host, a second host and a phosphorescent dopant. A triplet energy of each of the first host and the second host is 2.8 eV or more. An ionization potential of the first host is 5.5 eV or less. An affinity Af1 of the first host is smaller than an affinity Af2 of the second host.
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Patent Inventor Names
Chishio Hosokawa0
Hideaki Nagashima0
Hitoshi Kuma0
Kazuki Nishimura0
Masaki Numata0
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US Patent 08987715 Organic electroluminescence element US Patent 8987715 Organic electroluminescence element
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Patent Number
089877150
Patent Number
89877150
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Patent Jurisdiction
Patent Number
089877150
Date of Patent
March 24, 2015
0Patent Application Number
137026250
Date Filed
June 8, 2011
0Official Website
Patent Primary Examiner
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US Patent 08987715 Organic electroluminescence element
Infobox
Is a
Patent jurisdiction
Patent number
08987715
Date of patent
March 24, 2015
Patent application number
13702625
Date Filed
June 8, 2011
Patent primary examiner
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