Invention Grant
- Patent Title: Organic light emitting element
- Patent Title (中): 有机发光元件
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Application No.: US11807267Application Date: 2007-05-25
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Publication No.: US07649211B2Publication Date: 2010-01-19
- Inventor: Nobuharu Ohsawa
- Applicant: Nobuharu Ohsawa
- Applicant Address: JP
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP
- Agency: Cook Alex Ltd.
- Priority: JP2006-154077 20060601; JP2007-012700 20070123
- Main IPC: H01L29/24
- IPC: H01L29/24 ; H01L33/00 ; H01L29/08 ; H01L35/24 ; H01L51/00 ; H01L27/14 ; H01L31/00 ; H01L31/0232

Abstract:
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.
Public/Granted literature
- US20080006822A1 Light-emitting element, light-emitting device and an electronic device Public/Granted day:2008-01-10
Information query
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