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.:
Date of Patent:
Oct. 10, 2023
Filed:
Dec. 31, 2019
Wuhan Tianma Microelectronics Co., Ltd., Wuhan, CN;
Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai, CN;
Wenpeng Dai, Shanghai, CN;
Wei Gao, Shanghai, CN;
Jinghua Niu, Shanghai, CN;
Lei Zhang, Shanghai, CN;
Yang Li, Shanghai, CN;
Dongyang Deng, Shanghai, CN;
Ping An, Shanghai, CN;
WUHAN TIANMA MICROELECTRONICS CO., LTD., Wuhan, CN;
WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH, Shanghai, CN;
Abstract
A compound having a D-(π)-σ-(π)-A chemical structure and improving brightness and efficiency of light-emitting is described. In an embodiment, the compound has a chemical structure according to Formula (I), in which Land Lare each at least one of a single bond, C1-C20 alkylene, C3-C20 cycloalkylene, C3-C20 heterocyclic alkylene, C6-C40 arylene, C4-C40 heteroarylene, C10-C60 fused arylene, or C10-C60 fused heteroarylene; the electron donor D is C1-C20 alkyl, C3-C20 cycloalkyl, C1-C20 alkoxy, C3-C20 heterocyclic group, C6-C40 aryl, C4-C40 heteroaryl, C10-C60 fused arylene, C10-C60 fused heteroarylene, C12-C40 carbazolyl and its derivative groups, C12-C40 diphenylamino and its derivative groups, C18-C60 triphenylamino and its derivative groups, or C12-C40 acridinyl and its derivative groups; and the electron acceptor A is a nitrogen-containing heterocyclic group, a cyano-containing group, a triarylboron-based group, a benzophenone-based group, an aromatic heterocyclic ketone-based group, a sulfone-based group, or a phosphoroso-containing groups.