发明申请
- 专利标题: LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC APPLIANCE, AND METHOD OF MANUFACTURING THE SAME
- 专利标题(中): 发光元件,发光装置,电子器具及其制造方法
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申请号: US13541109申请日: 2012-07-03
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公开(公告)号: US20120267678A1公开(公告)日: 2012-10-25
- 发明人: Junichiro SAKATA , Hideko INOUE , Satoshi SEO , Nobuharu OHSAWA
- 申请人: Junichiro SAKATA , Hideko INOUE , Satoshi SEO , Nobuharu OHSAWA
- 申请人地址: JP Atsugi-shi
- 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 Atsugi-shi
- 优先权: JP2006-322425 20061129
- 主分类号: H01L51/52
- IPC分类号: H01L51/52
摘要:
A light-emitting element is provided which has a light-emitting layer between a first electrode and a second electrode, where the light-emitting layer has a first layer and a second layer; the first layer contains a first organic compound and a third organic compound; the second layer contains a second organic compound and the third organic compound; the first layer is provided to be in contact with the second layer on the first electrode side; the first organic compound is an organic compound with an electron transporting property; the second organic compound is an organic compound with a hole transporting property; the third organic compound has an electron trapping property; and light emission from the third organic compound can be obtained when voltage is applied to the first electrode and the second electrode so that the potential of the first electrode is higher than that of the second electrode.
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