Invention Grant
US07888865B2 Organic electroluminescent device and display having multiple emitting layers
有权
有机电致发光器件和具有多个发射层的显示器
- Patent Title: Organic electroluminescent device and display having multiple emitting layers
- Patent Title (中): 有机电致发光器件和具有多个发射层的显示器
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Application No.: US10574179Application Date: 2005-02-15
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Publication No.: US07888865B2Publication Date: 2011-02-15
- Inventor: Toshihiro Iwakuma , Masahide Matsuura , Hiroshi Yamamoto , Hisayuki Kawamura , Chishio Hosokawa
- Applicant: Toshihiro Iwakuma , Masahide Matsuura , Hiroshi Yamamoto , Hisayuki Kawamura , 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: JP2004-086905 20040324
- International Application: PCT/JP2005/002266 WO 20050215
- International Announcement: WO2005/091685 WO 20050929
- Main IPC: H01L51/52
- IPC: H01L51/52
Abstract:
An organic electroluminescent device including at least an anode, a first emitting layer, a hole barrier layer, a second emitting layer and a cathode in this order. The first emitting layer and the second emitting layer both include a hole transporting material. The organic EL device is small in chromaticity change and has high efficiency.
Public/Granted literature
- US20080246391A1 Organic Electroluminescent Device and Display Public/Granted day:2008-10-09
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