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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 11939341 B1

PDFFull Text
Date of Patent:
Mar. 26, 2024

Filed:

Jan. 29, 2021

Organic compound, electroluminescent material, and application thereof

Applicants:

Wuhan Tianma Microelectronics Co., Ltd., Wuhan, CN;

Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai, CN;

Inventors:

Quan Ran, Shanghai, CN;

Wei Gao, Shanghai, CN;

Lei Zhang, Shanghai, CN;

Wenpeng Dai, Shanghai, CN;

Assignees:

WUHAN TIANMA MICROELECTRONICS CO., LTD., Wuhan, CN;

WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH, Shanghai, CN;

Attorney:

KILPATRICK TOWNSEND & STOCKTON LLP

Primary Examiner:

Jay Yang

Int. Cl.
CPC ...
C07D 495/20 (2006.01); C07D 471/04 (2006.01); C07D 471/20 (2006.01); C07D 471/22 (2006.01); C07D 493/20 (2006.01); C07D 493/22 (2006.01); C07D 495/22 (2006.01); C07D 519/00 (2006.01); H01L 51/00 (2006.01); H10K 85/60 (2023.01); H10K 50/18 (2023.01);
U.S. Cl.
CPC ...
C07D 495/20 (2013.01); C07D 471/04 (2013.01); C07D 471/20 (2013.01); C07D 471/22 (2013.01); C07D 493/20 (2013.01); C07D 493/22 (2013.01); C07D 495/22 (2013.01); C07D 519/00 (2013.01); H10K 85/633 (2023.02); H10K 85/653 (2023.02); H10K 85/654 (2023.02); H10K 85/656 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 50/18 (2023.02);
Abstract

Provided are an organic compound, an electroluminescent material and an application thereof. The organic compound has a structure represented by Formula I. With the design of the spiro parent structure and the introduction of specific substituents, the organic compound can prevent materials from stacking and reduce the crystallinity of the molecule. The design of the spiro structure and substituents make the organic material have a high triplet state energy level Ti, and the nitrogen heterocycle and its linking groups make the organic compound have characteristics of good electron and hole transport performances. The organic compound has suitable HOMO and LUMO energy levels, facilitating the coordination of adjacent layers in terms of energy level. The organic compound also has advantages of high glass-transition temperature and good molecular thermal stability. Therefore, the organic compound can effectively improve the light emitting efficiency and lifetime of the device.

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