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:
Feb. 07, 2023
Filed:
Oct. 30, 2019
Wuhan Tianma Microelectronics Co., Ltd., Wuhan, CN;
Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai, CN;
Lei Zhang, Shanghai, CN;
Wei Gao, Shanghai, CN;
Jinghua Niu, Shanghai, CN;
Wenpeng Dai, Shanghai, CN;
Yan Lu, Shanghai, CN;
WUHAN TIANMA MICROELECTRONICS CO., LTD., Wuhan, CN;
Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai, CN;
Abstract
The present disclosure belongs to the technical field of organic light-emitting diods (OLEDs), and provides a compound used as an electron transmission material of OLEDs. Molecules of the compounds include an aromatic ring (or aromatic fused ring) and a phenanthroline group that are connected to each other. In an embodiment, the compound according to the present disclosure includes two types of groups, i.e., an aromatic ring (or aromatic fused ring) and a phenanthroline (or benzoquinoline) group. These two groups not only have good electron accepting ability, but also can be well doped with metals. The planarity of the two groups is conducive to the stacking of molecules, which facilitates the combination of holes and electrons and generates excitons, thereby increasing the electron mobility of the material and improving efficiency of device.