Title:
ORGANIC ELECTROLUMINESCENT LIGHT-EMITTING ELEMENT MATERIAL, ORGANIC ELECTROLUMINESCENT LIGHT-EMITTING ELEMENT, ORGANIC EL DISPLAY DEVICE, ORGANIC EL LIGHTING, ORGANIC ELECTROLUMINESCENT LIGHT-EMITTING ELEMENT-FORMING COMPOSITION, AND METHOD FOR PRODUCING ORGANIC ELECTROLUMINESCENT LIGHT-EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2024/004963
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an organic electroluminescent light-emitting element material which makes it possible to attain an organic electroluminescent light-emitting element which has high luminous efficiency and a long operating life. The present invention is an organic electroluminescent light-emitting element material which contains a light-emitting compound, an organic metal compound and a host material, wherein: the molecular weight of the organic metal compound is 1,200 or higher; one or more types of compound which are selected from the group consisting of compounds having a specific structure are contained as the host material; and the relational expression (E-1) and the relational expression (E-2) are satisfied. Expression (E-1): T1A≥T1B. Expression (E-2): ΔEST=S1B-T1B≤0.30ev. (The definitions of T1A, T1B and S1B in formula (E-1) and formula (E-2) are as described in the description.)
Inventors:
OKABE KAZUKI (JP)
UEDA NARA MAYUKO (JP)
NAGAYAMA KAZUHIRO (JP)
IIDA KOICHIRO (JP)
NAKAI TOSHIMITSU (JP)
UEDA NARA MAYUKO (JP)
NAGAYAMA KAZUHIRO (JP)
IIDA KOICHIRO (JP)
NAKAI TOSHIMITSU (JP)
Application Number:
PCT/JP2023/023675
Publication Date:
January 04, 2024
Filing Date:
June 26, 2023
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
H10K50/12; C09K11/06; G09F9/30; H10K59/10; H10K71/10; H10K85/30; H10K85/60; H10K101/20; H10K101/30; H10K101/40
Domestic Patent References:
| WO2022092046A1 | 2022-05-05 | |||
| WO2017164268A1 | 2017-09-28 | |||
| WO2022071542A1 | 2022-04-07 |
Foreign References:
| JP2021163964A | 2021-10-11 | |||
| CN113410405A | 2021-09-17 | |||
| JP2020510302A | 2020-04-02 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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