Invention Grant
- Patent Title: Organic light emitting device
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Application No.: US15053528Application Date: 2016-02-25
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Publication No.: US09705087B2Publication Date: 2017-07-11
- Inventor: Minako Nakasu , Masataka Yashima , Hajime Muta , Keiji Okinaka , Tomona Yamaguchi , Tomonari Horikiri , Maki Okajima , Naoki Yamada
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2009-282648 20091214
- Main IPC: H01L51/54
- IPC: H01L51/54 ; C09K11/06 ; H01L51/00 ; H01L51/50 ; H05B33/14 ; C09K11/02 ; G03G15/04 ; H01L27/32

Abstract:
Provided is an organic light emitting device with enhanced durability during continuous driving. The organic light emitting device includes: an anode, a cathode, and an organic compound layer being placed between the anode and the cathode and including at least a hole transport layer and an emission layer, in which: the emission layer contains a blue light emitting material; the hole transport layer contains a plurality of kinds of organic compounds; and an organic compound having the smallest ionization potential among the organic compounds includes a compound having no absorption spectrum peak in a blue color wavelength region in a radical cation state.
Public/Granted literature
- US20160181528A1 ORGANIC LIGHT EMITTING DEVICE Public/Granted day:2016-06-23
Information query
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