Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2024/048536
Kind Code:
A1
Abstract:
Provided is an organic EL element having high efficiency and long life even with a low voltage. Specifically, the present invention provides an organic EL element host material represented by general formula (1), an organic EL element employing said host material, and a manufacturing method therefor. A ring G is an aromatic ring represented by formula (1a) and a ring H is a heterocycle represented by formula (1b). D represents deuterium, and Ar1 is a substituted or unsubstituted aromatic hydrocarbon group having 6-18 carbon atoms, a substituted or unsubstituted aromatic heterocyclic group having 3-17 carbon atoms, or a substituted or unsubstituted linked aromatic group in which two of said aromatic groups are linked. a-f, x, and y represent the number of substitution, each of a, b, d, e, and z independently represents an integer of 0-4, each of c and f independently represents an integer of 0-5, x represents an integer of 0-2, y represents an integer of 0-12, and at least one of a-f is equal to or greater than 1. m and n represent the number of repetition, m represents an integer of 0-4, and n represents an integer of 2-4.
Inventors:
OGAWA JUNYA (JP)
SHIMAMOTO YUYA (JP)
IKENAGA YUJI (JP)
SHIMAMOTO YUYA (JP)
IKENAGA YUJI (JP)
Application Number:
PCT/JP2023/031042
Publication Date:
March 07, 2024
Filing Date:
August 28, 2023
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
International Classes:
H10K85/60; C07D209/82; 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 | |||
| WO2022031036A1 | 2022-02-10 |
Foreign References:
| JP2022536452A | 2022-08-17 | |||
| KR20220015980A | 2022-02-08 | |||
| KR20230007968A | 2023-01-13 |
Attorney, Agent or Firm:
SASAKI Kazuya et al. (JP)
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