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:
Nov. 12, 2024
Filed:
Dec. 31, 2019
Wuhan Tianma Microelectronics Co., Ltd., Wuhan, CN;
Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai, CN;
Wei Gao, Shanghai, CN;
Lei Zhang, Shanghai, CN;
Wenpeng Dai, Shanghai, CN;
Yang Li, Shanghai, CN;
Jinghua Niu, Shanghai, CN;
WUHAN TIANMA MICROELECTRONICS CO., LTD., Wuhan, CN;
WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH, Shanghai, CN;
Abstract
The present disclosure relates to the technical field of OLED, and provides a compound having TADF property. In an embodiment the compound has a structure according to Formula (1), in which X-Xare each independently selected from a carbon atom and a nitrogen atom, and at least one of X-Xis a nitrogen atom; R-Rare each selected from the group consisting of a hydrogen atom, a fluorine atom, alkyl, alkoxy, cyano, trifluoromethyl, an electron-accepting group, and an electron-donating group; at least one of R-Ris an electron-donating group or an electron-accepting group, and at least one of R-Ris an electron-donating group or an electron-accepting group; when each of R-Ris an electron-accepting group, at least one of R-Ris an electron-donating group, and each of R-Ris an electron-donating group, at least one of R-Ris an electron-accepting group.