发明申请
US20050104084A1 Organic electroluminescent device and organic electroluminescent display
有权
有机电致发光器件和有机电致发光显示器
- 专利标题: Organic electroluminescent device and organic electroluminescent display
- 专利标题(中): 有机电致发光器件和有机电致发光显示器
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申请号: US11020394申请日: 2004-12-27
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公开(公告)号: US20050104084A1公开(公告)日: 2005-05-19
- 发明人: Yuichiro Itai , Masaya Nakayama , Msaru Kinoshita , Jun Kodama
- 申请人: Yuichiro Itai , Masaya Nakayama , Msaru Kinoshita , Jun Kodama
- 申请人地址: JP Kawasaki
- 专利权人: FUJITSU LIMITED
- 当前专利权人: FUJITSU LIMITED
- 当前专利权人地址: JP Kawasaki
- 主分类号: C09K11/06
- IPC分类号: C09K11/06 ; G09F9/30 ; H01L21/00 ; H01L27/32 ; H01L51/00 ; H01L51/50 ; H05B33/14 ; H01L33/00
摘要:
In an organic EL device disclosed, there are stacked sequentially on a glass substrate an anode, a first carrier transportation layer, a second carrier transportation layer, a light emission layer, a third carrier transportation layer, a fourth carrier transportation layer, an electron transportation layer, and a cathode. The first carrier transportation layer is formed from a material having an ionization potential Ip lower than the ionization potential Ip of the second carrier transportation layer, and the third carrier transportation layer is formed from a material having an electron affinity Ea less than the electron affinity Ea of the fourth carrier transportation layer.
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