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:
Sep. 29, 2020
Wuhan Tianma Micro-electronics 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;
Quan Ran, Shanghai, CN;
Lu Zhai, Shanghai, CN;
Wenjing Xiao, Shanghai, CN;
Jinghua Niu, Shanghai, CN;
SHANGHAI TIANMA AM-OLED CO., LTD., Shanghai, CN;
WUHAN TIANMA MICRO-ELECTRONICS CO., LTD, Shanghai, CN;
Abstract
Provided is a compound represented by formula 1, and a display panel and a display apparatus including the compound. In formula 1, Land Lare each independently selected from the group consisting of a single bond, C6-C30 aryl, and C4-C30 heteroaryl; a and b are each independently selected from 0, 1, 2, 3, or 4; Dand Dare each independently a nitrogen-containing electron donor unit selected from the group consisting of carbazolyl and derivative groups thereof, acridinyl and derivative groups thereof, diarylamino and derivative groups thereof, and triarylamino and derivative groups thereof; and c and d are each independently selected from 0, 1, 2, 3, or 4, and c+d≥1.