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. 16, 2023
Filed:
May. 08, 2020
Beijing Summer Sprout Technology Co., Ltd., Beijing, CN;
Nannan Lu, Beijing, CN;
Zhihong Dai, Beijing, CN;
Qi Zhang, Beijing, CN;
Cuifang Zhang, Beijing, CN;
Chi Yuen Raymond Kwong, Beijing, CN;
Chuanjun Xia, Beijing, CN;
BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
A metal complex containing three different ligands which may be used as a light-emitting material in a light-emitting layer of an organic electroluminescent device. These new complexes can not only achieve device performed desired to be adjusted or improved by adjusting substituents but also have the effect of effectively controlling increase of the evaporation temperature. Further disclosed are an electroluminescent device and a compound formulation including the metal complex.