Invention Grant
- Patent Title: Light emitting device and electronic device
- Patent Title (中): 发光装置和电子装置
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Application No.: US13914785Application Date: 2013-06-11
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Publication No.: US08927307B2Publication Date: 2015-01-06
- Inventor: Masahiro Takahashi
- Applicant: Semiconductor Energy Laboratory Co., Ltd.
- 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: JP2006-058753 20060303
- Main IPC: H01L33/58
- IPC: H01L33/58 ; H05B33/26 ; H05B33/10 ; H01L27/32 ; H01L51/52

Abstract:
To improve light extraction efficiency of light emitting elements such as electroluminescent elements. A first electrode 101, a light emitting layer 102, and a second electrode 103 are formed over a substrate 100, which partially constitute a light emitting element. Light produced in the light emitting layer 102 is emitted out through the second electrode 103. A plurality of three-dimensional bodies 104 are provided in contact with a surface of the second electrode 103. With the provision of the bodies 104, light totally reflected between the second electrode 103 and the air enters the bodies 104 and can be emitted through faces of the bodies 104 that are not parallel to the interface between the bodies and the second electrode 103.
Public/Granted literature
- US20130273675A1 Light Emitting Device and Electronic Device Public/Granted day:2013-10-17
Information query
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