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1. (WO2017018326) ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE, AND ILLUMINATION DEVICE

Pub. No.:    WO/2017/018326    International Application No.:    PCT/JP2016/071481
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Sat Jul 23 01:59:59 CEST 2016
IPC: H01L 51/50
Applicants: KONICA MINOLTA, INC.
コニカミノルタ株式会社
Inventors: IIJIMA, Takayuki
飯島 貴之
KITA, Hiroshi
北 弘志
Title: ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE, AND ILLUMINATION DEVICE
Abstract:
The purpose of the present invention is to provide an organic electroluminescent element having improved luminous efficiency and stability under high-temperature storage. The present invention is an organic electroluminescent element that has an anode, a cathode, and at least one light-emitting layer sandwiched between the anode and the cathode, and is characterized in that at least one of the light-emitting layers contains a π-conjugated boron compound having a structure represented by general formula (1). (In general formula (1), X1 to X9 each independently represents -CR or a nitrogen atom, R represents a hydrogen atom or a substituent, and Y1 to Y3 each independently represents an oxygen atom or a sulfur atom).