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. 05, 2024
Filed:
Jan. 12, 2021
Wuhan Tianma Micro-electronics Co., Ltd., Wuhan, CN;
Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai, CN;
Wei Gao, Shanghai, CN;
Lu Zhai, Shanghai, CN;
Lei Zhang, Shanghai, CN;
Quan Ran, Shanghai, CN;
Wenpeng Dai, Shanghai, CN;
Yuyang Guo, Shanghai, CN;
Xia Li, Shanghai, CN;
WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan, CN;
Abstract
The present disclosure provides a compound having a structure represented by Formula 1, where X-Xare each independently selected from a carbon atom or a nitrogen atom, and at least two of X-Xare each a nitrogen atom; R-Rare independently absent or selected from hydrogen, C1-C20 alkyl, C1-C20 alkoxy, C1-C20 alkylthio, C1-C20 alkylamino, C6-C30 aryl, or C2-C30 heteroaryl; m is 1 or 2; n and q are each independently selected from 0, 1, or 2, n+q≥1, and m+n+q=3; Ar is C6-C30 aryl. The molecular structure of the compound has a nitrogen-containing multidentate ligand suitable to form complexes with metal Yb or LiQ to form a metal organic complex having multidentate bondings. When applied to an OLED device, it can effectively lower the turn-on voltage and operating voltage, improve the efficiency, and prolong lifetime of the OLED device.