发明申请
- 专利标题: ORGANIC EL DEVICE
- 专利标题(中): 有机EL设备
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申请号: US12532369申请日: 2008-03-24
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公开(公告)号: US20100044689A1公开(公告)日: 2010-02-25
- 发明人: Kazuki Nishimura , Toshihiro Iwakuma , Kenichi Fukuoka , Yukitoshi Jinde , Chishio Hosokawa
- 申请人: Kazuki Nishimura , Toshihiro Iwakuma , Kenichi Fukuoka , Yukitoshi Jinde , Chishio Hosokawa
- 申请人地址: JP Tokyo
- 专利权人: IDEMITSU KOSAN CO., LTD.
- 当前专利权人: IDEMITSU KOSAN CO., LTD.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2007-077611 20070323
- 国际申请: PCT/JP2008/055383 WO 20080324
- 主分类号: H01L51/52
- IPC分类号: H01L51/52
摘要:
A phosphorescent-emitting layer contains a phosphorescent host and a phosphorescent dopant for providing phosphorescence, and a fluorescent-emitting layer contains a fluorescent host and a fluorescent dopant for providing fluorescence. A charge blocking layer blocks electrons injected into the fluorescent host of the fluorescent-emitting layer from being injected toward the charge blocking layer from the fluorescent-emitting layer, and also injects holes into the fluorescent-emitting layer from the phosphorescent-emitting layer. A triplet energy gap EgPD of the phosphorescent dopant of the phosphorescent-emitting layer, a triplet energy gap EgEB of the charge blocking layer and a triplet energy gap EgFH of the fluorescent host of the fluorescent-emitting layer satisfy the following formula (1). EgPD
公开/授权文献
- US08207526B2 Organic EL device 公开/授权日:2012-06-26