Invention Grant
- Patent Title: Material for organic electroluminescent device, light-emitting material, and organic electroluminescent device
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Application No.: US15560681Application Date: 2016-03-14
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Publication No.: US11239439B2Publication Date: 2022-02-01
- Inventor: Chihaya Adachi , Jun-Ichi Nishide , Yasuhide Hiraga , Takehiro Takahashi
- Applicant: Hodogaya Chemical Co., Ltd. , Hirata Corporation , Kyushu University, National University Corporation
- Applicant Address: JP Tokyo; JP Kumamoto; JP Fukuoka
- Assignee: Hodogaya Chemical Co., Ltd.,Hirata Corporation,Kyushu University, National University Corporation
- Current Assignee: Hodogaya Chemical Co., Ltd.,Hirata Corporation,Kyushu University, National University Corporation
- Current Assignee Address: JP Tokyo; JP Kumamoto; JP Fukuoka
- Agency: Locke Lord LLP
- Agent James E. Armstrong, IV; Nicholas J. DiCeglie, Jr.
- Priority: JPJP2015-059492 20150323
- International Application: PCT/JP2016/057918 WO 20160314
- International Announcement: WO2016/152605 WO 20160929
- Main IPC: H01L51/50
- IPC: H01L51/50 ; C07D209/86 ; C09K11/06

Abstract:
To provide a light-emitting material of a light emitting layer, particularly a dopant material or a host material of a light emitting layer emitting delayed fluorescence, or a material suitable for a hole blocking layer, as a material for an organic electroluminescent device having a high efficiency, and also to provide an organic photoluminescent device or an organic electroluminescent device having a high efficiency and a high luminance, particularly an organic EL device suppressed in the roll-off phenomenon, by using the material. A material for an organic electroluminescent device, containing a benzonitrile derivative of the following general formula (1), and an organic electroluminescent device containing a pair of electrodes and one layer or plural layers including at least a light emitting layer intervening between the electrodes, the organic electroluminescent device using the material.
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