Invention Grant
- Patent Title: Organic EL devices
- Patent Title (中): 有机EL器件
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Application No.: US11628277Application Date: 2005-05-11
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Publication No.: US07854998B2Publication Date: 2010-12-21
- Inventor: Yoshiaki Nagara , Ichiro Yamamoto , Kenji Mori , Takanori Murasaki
- Applicant: Yoshiaki Nagara , Ichiro Yamamoto , Kenji Mori , Takanori Murasaki
- Applicant Address: JP Aichi-ken
- Assignee: Kabushiki Kaisha Toyota Jidoshokki
- Current Assignee: Kabushiki Kaisha Toyota Jidoshokki
- Current Assignee Address: JP Aichi-ken
- Agency: Locke Lord Bissell & Liddell LLP
- Priority: JP2004-162042 20040531
- International Application: PCT/JP2005/008601 WO 20050511
- International Announcement: WO2005/117499 WO 20051208
- Main IPC: H05B33/14
- IPC: H05B33/14

Abstract:
The present organic EL devices have at least one luminescent layer and a cathode sequentially provided on their anode, which luminescent layer contains an electron-transporting material, a hole-transporting material, and a luminescent dopant. Preferably, an electron-transporting layer is further provided between the luminescent layer and the cathode. According to the present invention, organic EL devices can be provided giving improved whiteness, colour reproducibility, luminescent efficiency, and lifetime compared to conventional ones.
Public/Granted literature
- US20080290788A1 Organic el Devices Public/Granted day:2008-11-27
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