Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2024/048537
Kind Code:
A1
Abstract:
The present invention provides an organic EL element which has low voltage, high efficiency, and a long life. Provided are: an organic EL element containing a first host represented by general formula (1), a second host represented by general formula (2), and a luminescent dopant material; a premixture; and a manufacturing method therefor. A ring F is represented by formula (1f), each of Ar1 and Ar2 is independently a phenyl group or the like, Ar3 is an aromatic hydrocarbon group or the like having 6-30 carbon atoms, and the average deuteration rate of Ar3 is equal to or greater than 50%. Each R1 is independently a deuterium or the like, and the average deuteration rate of all hydrogen contained in an indolocarbazole skeleton and R1 is equal to or greater than 50%. Each of Ar5 and Ar6 is independently an aromatic hydrocarbon group or the like having 6-30 carbon atoms and the average deuteration rate thereof is equal to or greater than 30%. Each R2 is independently a deuterium or the like, and the average deuteration rate of all hydrogen contained in a biscarbazole and R2 is equal to or greater than 50%.
Inventors:
IKENAGA YUJI (JP)
SAKAI MITSURU (JP)
OGAWA JUNYA (JP)
SHIMAMOTO YUYA (JP)
TAKAKI KOYO (JP)
SAKAI MITSURU (JP)
OGAWA JUNYA (JP)
SHIMAMOTO YUYA (JP)
TAKAKI KOYO (JP)
Application Number:
PCT/JP2023/031043
Publication Date:
March 07, 2024
Filing Date:
August 28, 2023
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
International Classes:
H10K85/60; C07D403/04; C07D487/04; C09K11/06; H05B33/10; H10K50/10; H10K50/11; H10K71/16; H10K85/30; H10K101/20; H10K101/40
Domestic Patent References:
| WO2022015084A1 | 2022-01-20 |
Foreign References:
| JP2022536452A | 2022-08-17 | |||
| JP2022535147A | 2022-08-04 |
Attorney, Agent or Firm:
SASAKI Kazuya et al. (JP)
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