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:
Sep. 23, 2025
Filed:
May. 18, 2021
Beijing Summer Sprout Technology Co., Ltd., Beijing, CN;
Qi Zhang, Beijing, CN;
Xueyu Lu, Beijing, CN;
Xinfang Hao, Beijing, CN;
Chi Yuen Raymond Kwong, Beijing, CN;
Chuanjun Xia, Beijing, CN;
BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
Provided is an organic light-emitting material. The organic light-emitting material is a metal complex having a ligand with a structure of Formula 1 or Formula 1'. The metal complex can be used as a light-emitting material in an electroluminescent device. These novel metal complexes can effectively adjust a light-emitting color to deep red, can improve external quantum efficiency of devices while maintaining a relatively narrow FWHM, and can provide better device performance. Further provided are an electroluminescent device and a compound formulation.