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Title:
THERMALLY ACTIVATED DELAYED FLUORESCENT MATERIAL, ORGANIC LIGHT-EMITTING DEVICE AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/273384
Kind Code:
A1
Abstract:
Provided in the present disclosure are a thermally activated delayed fluorescent material, an organic light-emitting device and a display apparatus. The energy level difference between a singlet energy level and a triplet energy level of the thermally activated delayed fluorescent material is less than 0.3 eV, and a spin-orbit coupling value SOC between a singlet state and a triplet state of the thermally activated delayed fluorescent material is SOC ≥ 0.05 cm-1.

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Inventors:
LIU XINGHUA (CN)
ZHANG XIAOJIN (CN)
SUN HAIYAN (CN)
Application Number:
PCT/CN2022/079125
Publication Date:
January 05, 2023
Filing Date:
March 03, 2022
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
C07C255/58; C07F7/10; C07D209/86; C07D219/02; C07D401/10; C07D403/10; C07D403/14; C07D491/147; C07F5/02; C07F7/08; C07F9/6533
Domestic Patent References:
WO2017146191A12017-08-31
Foreign References:
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Other References:
CHA JAE-RYUNG; LEE CHIL WON; LEE JUN YEOB; GONG MYOUNG-SEON: "Design ofortho-linkage carbazole-triazine structure for high-efficiency blue thermally activated delayed fluorescent emitters", DYES AND PIGMENTS, ELSEVIER APPLIED SCIENCE PUBLISHERS BARKING, GB, vol. 134, 9 August 2016 (2016-08-09), GB , pages 562 - 568, XP029708760, ISSN: 0143-7208, DOI: 10.1016/j.dyepig.2016.08.023
CHEN XIAN-KAI, BAKR BRANDON W., AUFFRAY MORGAN, TSUCHIYA YOUICHI, SHERRILL C. DAVID, ADACHI CHIHAYA, BREDAS JEAN-LUC: "Intramolecular Noncovalent Interactions Facilitate Thermally Activated Delayed Fluorescence (TADF)", JOURNAL OF PHYSICAL CHEMISTRY LETTERS, AMERICAN CHEMICAL SOCIETY, US, vol. 10, no. 12, 20 June 2019 (2019-06-20), US , pages 3260 - 3268, XP093018736, ISSN: 1948-7185, DOI: 10.1021/acs.jpclett.9b01220
LIU DI, WANG YING, WU LIZHU, LI DELI, MENG HUIHUI: "Multifunctional applications of triazine/carbazole hybrid thermally activated delayed fluorescence emitters in organic light emitting diodes", JOURNAL OF MATERIALS CHEMISTRY C, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 7, no. 40, 28 October 2019 (2019-10-28), GB , pages 12470 - 12481, XP093018742, ISSN: 2050-7526, DOI: 10.1039/C9TC03808F
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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