Title:
LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC EQUIPMENT, AND LIGHTING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/222097
Kind Code:
A1
Abstract:
Provided is a novel light-emitting device. Also, provided is a light-emitting device having a good service life. Provided is a light-emitting device having a positive electrode, a negative electrode, and an EL layer, wherein: the light-emitting layer is located between the positive electrode and the negative electrode; the EL layer has a light-emitting layer and an electron transport layer; the electron transport layer is located between the light-emitting layer and the negative electrode; the light-emitting layer has a first organic compound, a second organic compound, and a light emission center substance; the first organic compound and the second organic compound are a combination capable of forming an excited complex; and the electron transport layer has an organic compound represented by general formula (G1). (In general formula (G1), Ar1 represents a benzoquinolyl group or a benzoisoquinolyl group, and Ar2 represents a triphenylenylnaphthylene group or a naphthylenyltriphenylene-diyl group.)
Inventors:
KAWAKAMI SACHIKO (JP)
KOMATSU NOZOMI (JP)
SEO SATOSHI (JP)
KOMATSU NOZOMI (JP)
SEO SATOSHI (JP)
Application Number:
PCT/IB2020/053875
Publication Date:
November 05, 2020
Filing Date:
April 24, 2020
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
H05B33/12; H01L51/50
Foreign References:
| JP2012212879A | 2012-11-01 | |||
| KR20190081970A | 2019-07-09 | |||
| KR20190064508A | 2019-06-10 | |||
| KR20170065317A | 2017-06-13 | |||
| JP2014508130A | 2014-04-03 |
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