Invention Grant
- Patent Title: Organic electroluminescent device
- Patent Title (中): 有机电致发光器件
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Application No.: US13503156Application Date: 2010-10-22
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Publication No.: US09306174B2Publication Date: 2016-04-05
- Inventor: Norimasa Yokoyama , Makoto Nagaoka , Kazunori Togashi , Shigeru Kusano , Eiji Takahashi
- Applicant: Norimasa Yokoyama , Makoto Nagaoka , Kazunori Togashi , Shigeru Kusano , Eiji Takahashi
- Applicant Address: JP Tokyo
- Assignee: Hodogaya Chemical Co., Ltd.
- Current Assignee: Hodogaya Chemical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Lock Lord LLP
- Agent James E. Armstrong, IV; Nicholas J. DiCeglie, Jr.
- Priority: JP2009-244248 20091023
- International Application: PCT/JP2010/006284 WO 20101022
- International Announcement: WO2011/048821 WO 20110428
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L51/00 ; H05B33/20

Abstract:
A high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device is provided by using an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency.The organic electroluminescent device includes a pair of electrodes, and a plurality of organic layers sandwiched between the pair of electrodes and including a light emitting layer and an electron blocking layer, wherein a compound of the following general formula (1) having a carbazole ring structure is used as a constituent material of the electron blocking layer and the light emitting layer.
Public/Granted literature
- US20120273767A1 ORGANIC ELECTROLUMINESCENT DEVICE Public/Granted day:2012-11-01
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