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:
Apr. 29, 2025
Filed:
Dec. 18, 2019
Shanghai Tianma Am-oled Co., Ltd., Shanghai, CN;
Lei Zhang, Shanghai, CN;
Wei Gao, Shanghai, CN;
Jinghua Niu, Shanghai, CN;
Wenpeng Dai, Shanghai, CN;
Wenjing Xiao, Shanghai, CN;
Xia Li, Shanghai, CN;
WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan, CN;
WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH, Shanghai, CN;
Abstract
The present disclosure belongs to technical field of OLEDs, and provides a compound suitable as a hole transport material and an electron blocking material of OLEDs. The compound has a general structure according to [Chemical Formula 1], in which Arand Arare each independently selected from a hydrogen atom, a substituted or unsubstituted C5-C40 aryl, or a substituted or unsubstituted C5-C40 heteroaryl; m and n are each an integer independently selected from 0, 1, or 2; X is selected from O, S, or —NR—; R is selected from hydrogen, or a substituted or unsubstituted C5-C40 aryl; Arhas a structure according to [Chemical Formula 2], in which R-Rare each independently selected from a hydrogen atom, or a substituted or unsubstituted C5-C40 aryl; Y is selected from O, S, or —NR'—; and R′ is selected from a hydrogen atom, or a substituted or unsubstituted C5-C40 aryl.