Title:
ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/146191
Kind Code:
A1
Abstract:
An organic electroluminescent element has an anode, a luminous layer, and a cathode. The luminous layer contains a first compound and a second compound. The first compound is a delayed fluorescent compound. The second compound is expressed by general equation (20) noted below. Singlet energy S1 (M1) of the first compound and singlet energy S1 (M2) of the second compound satisfy the relationship of the mathematical formula noted below (Formula 1). S1 (M1) > S1 (M2)...（Formula 1）
Inventors:
SAITO MASATOSHI (JP)
YOSHIDA KEI (JP)
KAWAMURA YUICHIRO (JP)
OGIWARA TOSHINARI (JP)
YOSHIDA KEI (JP)
KAWAMURA YUICHIRO (JP)
OGIWARA TOSHINARI (JP)
Application Number:
PCT/JP2017/007023
Publication Date:
August 31, 2017
Filing Date:
February 24, 2017
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
H01L51/50; C09K11/06
Domestic Patent References:
| WO2015135624A1 | 2015-09-17 |
Foreign References:
| JP5669163B1 | 2015-02-12 | |||
| JP2012099593A | 2012-05-24 | |||
| JP2010270103A | 2010-12-02 | |||
| JP2012246258A | 2012-12-13 | |||
| JP2010254610A | 2010-11-11 |
Other References:
NAKANOTANI, HAJIME ET AL.: "High-efficiency organic light-emitting diodes with fluorescent emitters", NATURE COMMUNICATIONS, vol. 5, 2014, pages 1 - 7, XP055299570
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (JP)
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