发明授权
- 专利标题: Organic light emitting element
- 专利标题(中): 有机发光元件
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申请号: US11807267申请日: 2007-05-25
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公开(公告)号: US07649211B2公开(公告)日: 2010-01-19
- 发明人: Nobuharu Ohsawa
- 申请人: Nobuharu Ohsawa
- 申请人地址: JP
- 专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人地址: JP
- 代理机构: Cook Alex Ltd.
- 优先权: JP2006-154077 20060601; JP2007-012700 20070123
- 主分类号: H01L29/24
- IPC分类号: H01L29/24 ; H01L33/00 ; H01L29/08 ; H01L35/24 ; H01L51/00 ; H01L27/14 ; H01L31/00 ; H01L31/0232
摘要:
The present invention provides a light-emitting element including an electron-transporting layer and a hole-transporting layer between a first electrode and a second electrode; and a first layer and a second layer between the electron-transporting layer and the hole-transporting layer, wherein the first layer includes a first organic compound and an organic compound having a hole-transporting property, the second layer includes a second organic compound and an organic compound having an electron-transporting property, the first layer is formed in contact with the first electrode side of the second layer, the first organic compound and the second organic compound are the same compound, and a voltage is applied to the first electrode and the second electrode, so that both of the first organic compound and the second organic compound emit light.
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