ORGANIC ELECTROLUMINESCENT ELEMENT, COMPOUND AND ELECTRONIC DEVICE

Title:

ORGANIC ELECTROLUMINESCENT ELEMENT, COMPOUND AND ELECTRONIC DEVICE

Document Type and Number:

WIPO Patent Application WO/2021/117710

Kind Code:

A1

Abstract:

An organic electroluminescent element which comprises a positive electrode, a negative electrode and a light emitting layer that is arranged between the positive electrode and the negative electrode, wherein: the light emitting layer contains a delayed fluorescent compound M2 and a compound M3 represented by general formula (3); and the singlet energy S1(M2) of the compound M2 and the singlet energy S1(M3) of the compound M3 satisfy the numerical formula (numerical formula 1) described below.　(Numerical formula 1): S1(M3) > S1(M2) (In general formula (3), A3 is a group represented by general formula (3a) or the like.)

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Inventors:

SHIOMI TAKUSHI (JP)
NAKANO HIROMI (JP)
OGIWARA TOSHINARI (JP)
MATSUMOTO HISATO (JP)

Application Number:

PCT/JP2020/045640

Publication Date:

June 17, 2021

Filing Date:

December 08, 2020

Export Citation:

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Assignee:

IDEMITSU KOSAN CO (JP)

International Classes:

C07D235/04; C07D209/86; C07D307/91; C07D333/76; C07D405/14; C07D493/04; C07D495/04; C09K11/06; H01L51/50

Foreign References:

KR20200038872A	2020-04-14
KR20200038871A	2020-04-14
US20140158992A1	2014-06-12
US20180175306A1	2018-06-21
KR20180051354A	2018-05-16
US20170352447A1	2017-12-07
KR20170086277A	2017-07-26

Attorney, Agent or Firm:

KINOSHITA & ASSOCIATES (JP)

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