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Patent Searching and Data


Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2020/067823
Kind Code:
A1
Abstract:
The present specification relates to an organic electroluminescent element, the organic electroluminescent element comprising a cathode, an anode, a light-emitting layer provided between the cathode and the anode, and one or more organic material layers provided between the cathode and the anode, the one or more organic material layers comprising an electron transport region and a hole transport region, wherein all of the organic materials, other than a dopant, contained in the one or more organic material layers have a triplet state energy of 2.5 eV or higher, at least three types of the organic materials having a triplet state energy of 2.5 eV or higher have a triplet state energy of 2.7 eV or higher, and at least two types of the organic materials having a triplet state energy of 2.5 eV or higher include a spiro compound.

Inventors:
HA JAE SEUNG (KR)
KIM SEONG SO (KR)
CHUN MINSEUNG (KR)
SUH SANG DUK (KR)
JUNG MIN WOO (KR)
JANG BOON JAE (KR)
CHA YONGBUM (KR)
HEO DONG UK (KR)
LEE JUNGHA (KR)
Application Number:
PCT/KR2019/012673
Publication Date:
April 02, 2020
Filing Date:
September 29, 2019
Export Citation:
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Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01L51/50; H01L51/00; H01L51/52
Foreign References:
JP2015124206A2015-07-06
KR20080052579A2008-06-11
KR20180096532A2018-08-29
KR20160095165A2016-08-10
KR20170041155A2017-04-14
Attorney, Agent or Firm:
CHUNG, Soon-Sung (KR)
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