Invention Grant
- Patent Title: Light-emitting element
- Patent Title (中): 发光元件
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Application No.: US13044792Application Date: 2011-03-10
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Publication No.: US09570697B2Publication Date: 2017-02-14
- Inventor: Daisuke Kumaki , Satoshi Seo
- Applicant: Daisuke Kumaki , Satoshi Seo
- Applicant Address: JP Kanagawa-ken
- Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- Current Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- Current Assignee Address: JP Kanagawa-ken
- Agency: Robinson Intellectual Property Law Office
- Agent Eric J. Robinson
- Priority: JP2003-432306 20031226
- Main IPC: H01L29/08
- IPC: H01L29/08 ; H01L35/24 ; H01L51/00 ; H01L51/50 ; H01L51/52

Abstract:
In the present invention, a light-emitting element operating at low driving voltage, consuming low power, emitting light with good color purity and manufactured in high yields can be obtained. A light-emitting element is disclosed with a configuration composed of a first layer containing a light-emitting material, a second layer, a third layer are formed sequentially over an anode to be interposed between the anode and a cathode in such a way that the third layer is formed to be in contact with the cathode. The second layer is made from n-type semiconductor, a mixture including that, or a mixture of an organic compound having a carrier transporting property and a material having a high electron donor property. The third layer is made from p-type semiconductor, a mixture including that, or a mixture of an organic compound having a carrier transporting property and a material having a high electron acceptor property.
Public/Granted literature
- US20110156030A1 LIGHT-EMITTING ELEMENT Public/Granted day:2011-06-30
Information query
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