Title:
ORGANIC ELECTROLUMINESCENT ELEMENT AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/131123
Kind Code:
A1
Abstract:
Provided is an organic electroluminescent element (organic EL element) that provides good practical use and that can be driven at a low voltage, has a high efficiency, and has long lifespan properties. This organic electroluminescent element is characterized by including luminous layers between a positive electrode and a negative electrode facing each other, and is characterized in that at least one of the luminous layers contains: a first host selected from carbazole compounds having a structure in which three or more carbazole rings are linked; a second host selected from indolocarbazole compounds having a structure in which an indolocarbazole ring has a substitution of a nitrogen-containing six membered-ring group; and a luminous dopant material.
Inventors:
OGAWA JUNYA (JP)
KITERA SAYURI (JP)
OKUYAMA MASATAKA (JP)
KITERA SAYURI (JP)
OKUYAMA MASATAKA (JP)
Application Number:
PCT/JP2021/045322
Publication Date:
June 23, 2022
Filing Date:
December 09, 2021
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
International Classes:
H01L51/50; C09K11/06; H05B33/10
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Attorney, Agent or Firm:
SASAKI Kazuya et al. (JP)
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