Invention Grant
- Patent Title: Phosphorescent host material
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Application No.: US16622489Application Date: 2018-06-13
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Publication No.: US11456424B2Publication Date: 2022-09-27
- Inventor: Tomoka Hara , Hideko Yoshizumi , Hiromitsu Kido , Satoshi Seo
- Applicant: Semiconductor Energy Laboratory Co., Ltd.
- Applicant Address: JP Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Kanagawa-ken
- Agency: Husch Blackwell LLP
- Priority: JPJP2017-123227 20170623
- International Application: PCT/IB2018/054279 WO 20180613
- International Announcement: WO2018/234932 WO 20181227
- Main IPC: H01L51/00
- IPC: H01L51/00 ; C07D491/048 ; H01L51/50

Abstract:
A novel compound is provided. A light-emitting element with high emission efficiency and a long lifetime is provided. The compound is an organic compound that includes a benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton (General Formula (G0)). The 2-position of the benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton has a substituent and the 6- to 9-positions of the skeleton have at least one substituent. Any one of the substituents bonded to the 6- to 9-positions is bonded to the benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton via a phenylene group. A light-emitting element including the compound is provided.
Public/Granted literature
- US20210151689A1 Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device Public/Granted day:2021-05-20
Information query
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