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Title:
LIGHT EMITTING DEVICE, LIGHT EMITTING APPARATUS, LIGHT EMITTING MODULE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/240333
Kind Code:
A1
Abstract:
Provided is a light emitting device that emits both near infrared light and visible light. This light emitting device comprises a light emitting organic compound and a host material in a light emitting layer, has an emission spectrum with a maximum peak wavelength of 750 to 900 nm, and has a function to emit both visible light and near infrared light, wherein the maximum peak energy of the emission spectrum of the host material is greater than the peak energy of an absorption band positioned at the lowest energy side of the absorption spectrum of the light emitting organic compound.

Inventors:
UEDA AIRI (JP)
WATABE TAKEYOSHI (JP)
OHSAWA NOBUHARU (JP)
SEO SATOSHI (JP)
Application Number:
PCT/IB2020/054668
Publication Date:
December 03, 2020
Filing Date:
May 18, 2020
Export Citation:
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Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
H01L51/50
Domestic Patent References:
WO2015186311A12015-12-10
WO2017119203A12017-07-13
Foreign References:
CN103342702A2013-10-09
JP2002237386A2002-08-23
JP2012186460A2012-09-27
JP2012186461A2012-09-27
JP2018092993A2018-06-14
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