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:
May. 31, 2022
Filed:
Aug. 02, 2018
Wuhan Tianma Microelectronics Co., Ltd., Wuhan, CN;
Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai, CN;
Wei Gao, Shanghai, CN;
Xiangcheng Wang, Shanghai, CN;
Lei Zhang, Shanghai, CN;
Jinghua Niu, Shanghai, CN;
SHANGHAI TIANMA AM-OLED CO., LTD., Shanghai, CN;
Abstract
The disclosure relates to the technical field of organic electroluminescent materials, and particularly to a compound and an organic light emitting display device. The compound has structure shown as formula (I): where D represents an electron donor unit, A represents an electron acceptor unit, in and n are each independently selected from 1, 2 or 3, and m+n≤4. When the compound of the present disclosure is used as a light emitting material, a guest material, or a host material of an organic light emitting display device, higher light emitting efficiency can be achieved.