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1. (WO2018221173) ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE, AND LIGHTING DEVICE

Pub. No.:    WO/2018/221173    International Application No.:    PCT/JP2018/018451
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Tue May 15 01:59:59 CEST 2018
IPC: H01L 51/50
Applicants: KONICA MINOLTA, INC.
コニカミノルタ株式会社
Inventors: KOBAYASHI, Fumiaki
小林 史明
TAKA, Hideo
▲高▼ 秀雄
SUZUKI, Takatugu
鈴木 隆嗣
TADA, Kazunari
多田 一成
HATANO, Takuji
波多野 卓史
Title: ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE, AND LIGHTING DEVICE
Abstract:
The present invention provides an organic EL electroluminescent element having at least a hole injection layer and a light emitting layer laminated between a pair of electrodes, wherein the hole injection layer contains zinc sulfide, the light emitting layer is directly laminated on the hole injection layer, the light emitting layer contains an organic compound interacting with said zinc sulfide, and the density of the light emitting layer is in the range of 1.0-1.8 g/cm3.