Invention Grant
- Patent Title: Light-emitting element, light-emitting device, and electronic device
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Application No.: US12612779Application Date: 2009-11-05
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Publication No.: US08410688B2Publication Date: 2013-04-02
- Inventor: Tsunenori Suzuki , Satoshi Seo , Ryoji Nomura
- Applicant: Tsunenori Suzuki , Satoshi Seo , Ryoji Nomura
- Applicant Address: JP
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP
- Agency: Husch Blackwell LLP
- Priority: JP2006-184653 20060704; JP2006-327610 20061204; JP2007-073089 20070320
- Main IPC: H01L51/50
- IPC: H01L51/50

Abstract:
The light-emitting element includes: a light-emitting layer and a layer for controlling the movement of carriers between a first electrode and a second electrode. The layer for controlling the movement of carriers contains a first organic compound and a second organic compound, and is provided between the light-emitting layer and the second electrode. The first organic compound has an electron transporting property, and the second organic compound has an electron trapping property. The weight percent of the first organic compound is higher than that of the second organic compound. The light-emitting layer emits light when a voltage is applied such that the potential of the first electrode is higher than that of the second electrode. The first organic compound having the electron transporting property may be replaced with an organic compound having a hole transporting property, and the second organic compound having the electron trapping property may be replaced with an organic compound having a hole trapping property.
Public/Granted literature
- US20100109518A1 Light-Emitting Element, Light-Emitting Device, and Electronic Device Public/Granted day:2010-05-06
Information query
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