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:
Mar. 01, 2022
Filed:
Jan. 09, 2019
Wuhan Tianma Micro-electronics Co., Ltd., Wuhan, CN;
Wei Gao, Wuhan, CN;
Lei Zhang, Wuhan, CN;
Qing Zhu, Wuhan, CN;
Jinghua Niu, Wuhan, CN;
Ping An, Wuhan, CN;
Gaojun Huang, Wuhan, CN;
WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan, CN;
Abstract
The present disclosure provides a benzo diheterocyclic compound having a structure represented by Formula (I). In Formula (I), Yand Yare oxygen or sulfur; Arand Arare each independently selected from a group consisting of single bond, a substituted or unsubstituted phenyl, a substituted or unsubstituted naphthyl, a substituted or unsubstituted anthracyl, a substituted or unsubstituted phenanthryl, a substituted or unsubstituted acenaphthylenyl, and a substituted or unsubstituted aromatic heterocyclic group; m and n are integers independently selected from 0 and 1; Dand Dare aryl or heteroaryl, Arand Arare aryl or heteroaryl, and Ris hydrogen, phenyl, or naphthyl. When the benzo diheterocyclic compound is used as a capping layer of a cathode, it will not interfere light emission of an OLED, and the OLED can maintain a high color purity.