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Title:
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/210305
Kind Code:
A1
Abstract:
An organic electroluminescent element (1) comprises: a negative electrode (3); a positive electrode (4); a first light-emitting layer (51) disposed between the negative electrode (3) and the positive electrode (4) and containing a first compound; and a second light-emitting layer (52) disposed between the first light-emitting layer (51) and the positive electrode (4) and containing a second compound. At least one of the first light-emitting layer (51) and the second light-emitting layer (52) contains a compound that includes at least one deuterium atom. At least one of the first light-emitting layer (51) and the second light-emitting layer (52) contains a compound that includes a condensed ring of at least four rings. The first light-emitting layer (51) and the second light-emitting layer (52) are directly in contact with each other.

Inventors:
TASAKI SATOMI (JP)
ITOI HIROAKI (JP)
YAMAKI TARO (JP)
IIDA MAIKO (JP)
NISHIMURA KAZUKI (JP)
NAKANO YUKI (JP)
Application Number:
PCT/JP2021/009835
Publication Date:
October 21, 2021
Filing Date:
March 11, 2021
Export Citation:
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Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C07D235/08; C07D209/86; C07D307/91; C07D311/92; C07D333/76; C07D403/10; C07D487/06; C07D491/22; C07D493/04; C07D495/04; C09K11/06; H01L51/50; H05B33/12
Domestic Patent References:
WO2019124550A12019-06-27
WO2020080417A12020-04-23
Foreign References:
US20170338432A12017-11-23
JP2010161356A2010-07-22
US20190305227A12019-10-03
JP2011241383A2011-12-01
JP2019161218A2019-09-19
JP2015041775A2015-03-02
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (JP)
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