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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12378262 B1

PDFFull Text
Date of Patent:
Aug. 05, 2025

Filed:

Jan. 25, 2022

Organic compound and application thereof

Applicant:

Wuhan Tianma Micro-electronics Co., Ltd., Wuhan, CN;

Inventors:

Dongyang Deng, Wuhan, CN;

Ying Liu, Wuhan, CN;

Lei Zhang, Wuhan, CN;

Wei Gao, Wuhan, CN;

Assignee:

Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan, CN;

Attorney:

KDW FIRM PLLC

Primary Examiner:

Dawn L Garrett

Int. Cl.
CPC ...
C07F 5/02 (2006.01); H10K 50/11 (2023.01); H10K 85/30 (2023.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01); H10K 101/20 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
C07F 5/027 (2013.01); H10K 85/322 (2023.02); H10K 85/40 (2023.02); H10K 85/615 (2023.02); H10K 85/636 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 85/658 (2023.02); H10K 50/11 (2023.02); H10K 2101/20 (2023.02);
Abstract

Provided are an organic compound and use thereof. The organic compound has a structure shown in Formula I. Through molecular structure design, the organic compound is endowed with suitable HOMO and LUMO energy levels, which is conducive to matching energy levels of compounds in adjacent layers and achieving efficient exciton recombination. The organic compound has small overlap of HOMO/LUMO energy level, high singlet energy level E, high triplet energy level Eand small energy level difference ΔE, which is conducive to reverse intersystem crossing and achieving higher luminescence efficiency. The organic compound molecule has high stability and low stacking degree, which is conducive to reducing concentration quenching and has excellent thermal and film stability. The organic compound is suitable as TADF materials, which is use for OLED devices, conducive to preparing OLED devices, can improve luminescence efficiency and stability of devices, reduce turn-on voltage and extend lifetime of devices.

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