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Title:
TOP-EMISSION-TYPE ORGANIC ELECTROLUMINESCENT ELEMENT, AND METHOD FOR DESIGNING SAME
Document Type and Number:
WIPO Patent Application WO/2022/249750
Kind Code:
A1
Abstract:
Provided is a top-emission-type organic electroluminescent element equipped with a light-emitting layer containing first to third organic compounds, in which the second organic compound that has a smaller ES1 value than that of the first organic compound is a delayed fluorescence material and the third organic compound that has the smallest ES1 value and has a larger ELUMO value and a larger EHOMO value than those of the second organic compound has an S value of -0.38 or less and a half-width value of 31 nm or less. The top-emission-type organic electroluminescent element has high luminous efficiency.

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Inventors:
KAKIZOE HAYATO (JP)
Application Number:
PCT/JP2022/015887
Publication Date:
December 01, 2022
Filing Date:
March 30, 2022
Export Citation:
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Assignee:
KYULUX INC (JP)
International Classes:
C09K11/06; H01L51/50; H05B33/10; H05B33/12; H05B33/26; H05B33/28
Domestic Patent References:
WO2020039930A12020-02-27
WO2020040298A12020-02-27
WO2022025248A12022-02-03
Foreign References:
JP2019204947A2019-11-28
US20200185632A12020-06-11
JP2020132636A2020-08-31
JP2020203875A2020-12-24
Attorney, Agent or Firm:
SIKS & CO. (JP)
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