Invention Grant
- Patent Title: Organic el element and solution containing organic el material
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Application No.: US14061561Application Date: 2013-10-23
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Publication No.: US10079343B2Publication Date: 2018-09-18
- Inventor: Kazuki Nishimura , Toshihiro Iwakuma , Kenichi Fukuoka , Chishio Hosokawa
- Applicant: Idemitsu Kosan Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2007-303710 20071122
- Main IPC: H01L51/00
- IPC: H01L51/00 ; C09K11/06 ; H01L51/50

Abstract:
An organic electroluminescence device (1) includes: an anode (3); a cathode (4); and an organic thin-film layer (10) interposed between the anode (3) and the cathode (4). The organic thin-film layer (10) includes a phosphorescent-emitting layer (5) containing a host and a phosphorescent dopant. The host contains a first host and a second host. The first host includes a substituted or unsubstituted polycyclic fused aromatic skeleton, the skeleton having 10 to 30 ring-forming atoms not including an atom of a substituent. The second host has an affinity level greater than the affinity level of the first host.
Public/Granted literature
- US20140061627A1 ORGANIC EL ELEMENT AND SOLUTION CONTAINING ORGANIC EL MATERIAL Public/Granted day:2014-03-06
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