Title:
LIGHT-EMITTING MATERIAL AND USE THEREOF, AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/068528
Kind Code:
A1
Abstract:
The present invention relates to the technical field of organic electroluminescence, and particularly relates to an organic compound and the use thereof, and an organic electroluminescence device comprising the compound. A general formula compound of the present invention has a structure as represented by formula (I), wherein ring A, ring B, ring C and ring D each independently represent any one of a C5-C20 monocyclic aromatic ring or fused aromatic ring, and a C4-C20 monocyclic heterocyclic ring or fused heterocyclic ring; ring E represents a C5-C20 aromatic ring; Y1 and Y2 independently are N or B, respectively; and X1, X2, X3 and X4 independently are NR1, BR2, O or S, respectively. The compound of the present invention exhibits excellent device performance and stability when used as a light-emitting material in an OLED device. The present invention also claims an organic electroluminescence device using the general formula compound.
Inventors:
DUAN LIAN (CN)
ZHANG YUEWEI (CN)
ZHANG DONGDONG (CN)
ZHANG YUEWEI (CN)
ZHANG DONGDONG (CN)
Application Number:
PCT/CN2021/116592
Publication Date:
April 07, 2022
Filing Date:
September 06, 2021
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
C07F5/02; C07F7/08; C09K11/06; H01L51/54
Domestic Patent References:
| WO2020106032A1 | 2020-05-28 | |||
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Foreign References:
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Other References:
ZHANG YUEWEI, ZHANG DONGDONG, HUANG TIANYU, GILLETT ALEXANDER J., LIU YANG, HU DEPING, CUI LINSONG, BIN ZHENGYANG, LI GUOMENG, WEI: "Multi‐Resonance Deep‐Red Emitters with Shallow Potential‐Energy Surfaces to Surpass Energy‐Gap Law**", ANGEWANDTE CHEMIE INTERNATIONAL EDITION, VERLAG CHEMIE, vol. 60, no. 37, 6 September 2021 (2021-09-06), pages 20498 - 20503, XP055917758, ISSN: 1433-7851, DOI: 10.1002/anie.202107848
Attorney, Agent or Firm:
BEIJING HUIZE INTELLECTUAL PROPERTY LAW LLC (CN)
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