Invention Grant
- Patent Title: Light-emitting element, light-emitting device, and electronic device
- Patent Title (中): 发光元件,发光元件及电子元件
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Application No.: US11994364Application Date: 2006-07-03
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Publication No.: US08415878B2Publication Date: 2013-04-09
- Inventor: Satoshi Seo , Yuji Iwaki
- Applicant: Satoshi Seo , Yuji Iwaki
- 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: JP2005-197614 20050706
- International Application: PCT/JP2006/313631 WO 20060703
- International Announcement: WO2007/004729 WO 20070111
- Main IPC: H01J1/62
- IPC: H01J1/62

Abstract:
It is an object to provide a light-emitting element which can reduce power consumption. A light-emitting element is provided, which includes a pair of electrodes and a light-emitting layer interposed between the pair of electrodes. The light-emitting layer includes at least a first layer and a second layer, each of the first layer and the second layer includes an emission center and a host material, the emission center is dispersed in the host material, a thickness of each of the first layer and the second layer is 1 nm or more and 10 nm or less, and the first layer is not in contact with the second layer.
Public/Granted literature
- US20090206732A1 Light-Emitting Element, Light-Emitting Device, and Electronic Device Public/Granted day:2009-08-20
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