ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

WIPO Patent Application WO/2021/090932

A1

An organic electroluminescent element (1) has: a first light emitting layer (51) disposed between a positive electrode (3) and a negative electrode (4); a second light emitting layer (52) disposed between the first light emitting layer (51) and the negative electrode (4); and an electron barrier layer (70) disposed between the first light emitting layer (51) and the positive electrode (3), wherein: the first light emitting layer (51) and the second light emitting layer (52) are in direct contact; the first light emitting layer (51) and the electron barrier layer (70) are in direct contact; the first light emitting layer (51) contains a first compound represented by general formula (1); the first compound has at least one group represented by general formula (11); the second light emitting layer (52) contains a second compound represented by general formula (2); the electron barrier layer (70) includes a third compound; and the third compound satisfies the expression (M1).　(M1): Ip(HT)≥5.67 eV

TASAKI SATOMI (JP)
NISHIMURA KAZUKI (JP)
HAKETA TASUKU (JP)
MAEDA RYOJI (JP)
NAKANO YUKI (JP)
TOYOSHIMA HIROAKI (JP)

PCT/JP2020/041598

May 14, 2021

November 06, 2020

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IDEMITSU KOSAN CO (JP)

H05B33/12; H01L51/50

WO2007100010A1	2007-09-07
WO2018139662A1	2018-08-02

JP2013067586A	2013-04-18
JP4804289B2	2011-11-02
JP2009249551A	2009-10-29
JP2011153201A	2011-08-11
JP2014027041A	2014-02-06
JP2012224618A	2012-11-15

KINOSHITA & ASSOCIATES (JP)

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