Title:
B-N-CONTAINING ORGANIC ELECTROLUMINESCENT MATERIAL AND USE THEREOF IN ELECTROLUMINESCENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/035820
Kind Code:
A1
Abstract:
A B-N-containing organic electroluminescent material and the use thereof in an electroluminescent device, wherein the material has structures as shown in general formulae (I), (II), and (III). The material on the basis of a B-N structure has an electron-withdrawing-N structural unit introduced thereto, such that the multiple resonance effect of the B-N structure can be effectively enhanced, the Π conjugate plane is increased, and the light-emitting spectrum is adjusted; and the aromatic group on arylamine is fixed by the introduced electron-withdrawing group to form a large rigid Π plane structure, so that the vibration in molecules can be effectively suppressed, an efficient organic light-emitting material with a narrow half-wave width can be obtained, thereby meeting the commercial requirements.
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Inventors:
BAI KEYAN (CN)
DAI LEI (CN)
CAI LIFEI (CN)
DAI LEI (CN)
CAI LIFEI (CN)
Application Number:
PCT/CN2022/110124
Publication Date:
March 16, 2023
Filing Date:
August 04, 2022
Export Citation:
Assignee:
GUANGDONG AGLAIA OPTOELECTRONIC MAT CO LTD (CN)
International Classes:
C07F5/02; C09K11/06
Domestic Patent References:
| WO2019235402A1 | 2019-12-12 | |||
| WO2022018181A1 | 2022-01-27 |
Foreign References:
| CN112480154A | 2021-03-12 | |||
| CN110790782A | 2020-02-14 | |||
| CN110407859A | 2019-11-05 | |||
| CN112898324A | 2021-06-04 | |||
| KR20190127529A | 2019-11-13 | |||
| CN109155368A | 2019-01-04 | |||
| CN113929709A | 2022-01-14 | |||
| CN114773366A | 2022-07-22 |
Attorney, Agent or Firm:
BEIJING ZHAOJUN UNION INTELLECTUAL PROPERTY LAW FIRM (CN)
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