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.: US12323492Application Date: 2008-11-26
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Publication No.: US08455111B2Publication Date: 2013-06-04
- Inventor: Nobuharu Ohsawa , Hideko Inoue , Satoshi Seo
- Applicant: Nobuharu Ohsawa , Hideko Inoue , Satoshi Seo
- Applicant Address: JP Atsugi-shi, Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Atsugi-shi, Kanagawa-ken
- Agency: Robinson Intellectual Property Law Office, P.C.
- Agent Eric J. Robinson
- Priority: JP2007-310376 20071130
- Main IPC: H01L51/54
- IPC: H01L51/54

Abstract:
A light-emitting element having high emission efficiency and long lifetime is provided. By manufacturing a light-emitting device using the light-emitting element, the light-emitting device having low power consumption and long lifetime is provided. The light-emitting element is manufactured in which a light-emitting layer is included between a first electrode serving as an anode and a second electrode serving as a cathode. The light-emitting layer includes a first organic compound having a hole-transporting property, a second organic compound having an electron-transporting property, and an organometallic complex including a dibenzo[f,h]quinoxaline skeleton as a ligand. Further, a light-emitting device is manufactured using the light-emitting element.
Public/Granted literature
- US20090140643A1 LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE Public/Granted day:2009-06-04
Information query
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