Invention Grant
- Patent Title: Light-emitting element, display device, electronic device, and lighting device
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Application No.: US15944013Application Date: 2018-04-03
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Publication No.: US10454052B2Publication Date: 2019-10-22
- Inventor: Shunsuke Hosoumi , Takahiro Ishisone , Tatsuyoshi Takahashi , 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: Nixon Peabody LLP
- Agent Jeffrey L. Costellia
- Priority: JP2015-046409 20150309
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L51/00

Abstract:
A light-emitting element containing a fluorescent material and having high emission efficiency is provided. The light-emitting element contains the fluorescent material and a host material. The host material contains a first organic compound and a second organic compound. The first organic compound and the second organic compound can form an exciplex. The minimum value of a distance between centroids of the fluorescent material and at least one of the first organic compound and the second organic compound is 0.7 nm or more and 5 nm or less.
Public/Granted literature
- US20180226598A1 LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE Public/Granted day:2018-08-09
Information query
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