Invention Grant
- Patent Title: Organic EL device
- Patent Title (中): 有机EL器件
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Application No.: US12668035Application Date: 2008-07-04
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Publication No.: US08436343B2Publication Date: 2013-05-07
- Inventor: Kazuki Nishimura , Toshihiro Iwakuma , Masahiro Kawamura , Kenichi Fukuoka , Chishio Hosokawa
- Applicant: Kazuki Nishimura , Toshihiro Iwakuma , Masahiro Kawamura , Kenichi Fukuoka , Chishio Hosokawa
- Applicant Address: JP Tokyo
- Assignee: Idemitsu Kosan Co., Ltd.
- Current Assignee: Idemitsu Kosan Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-179111 20070707
- International Application: PCT/JP2008/062134 WO 20080704
- International Announcement: WO2009/008346 WO 20090115
- Main IPC: H01L35/24
- IPC: H01L35/24

Abstract:
An organic EL device includes: an anode (3); a cathode (4); and an organic thin-film layer (5) provided between the anode (3) and the cathode (4). The organic thin-film layer (5) includes: a fluorescent-emitting layer (51) containing a fluorescent host and a blue fluorescent dopant; a red phosphorescent-emitting layer (52) containing a red phosphorescent host and a red phosphorescent dopant; and a green phosphorescent-emitting layer (53) containing a green phosphorescent host and a green phosphorescent dopant. The red phosphorescent dopant emits light mainly by receiving transfer of triplet energy from the fluorescent host. The green phosphorescent dopant emits light mainly by recombination of charges within the green phosphorescent-emitting layer.
Public/Granted literature
- US20110309337A1 ORGANIC EL DEVICE Public/Granted day:2011-12-22
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