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:
Nov. 25, 2025
Filed:
Sep. 19, 2020
Guangdong Aglaia Optoelectronic Materials Co., Ltd, Guangdong, CN;
GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD., Foshan, CN;
Abstract
An O∧C∧N∧N tetradentate platinum (II) complex has a structure as shown in Formula (I) below. Compared with a conventional devices, the organic light-emitting device prepared as described herein has better performance. The novel O∧C∧N∧N tetradentate platinum (II) complex has great application value. The tetradentate platinum (II) complex is based on a carbazole framework, and has a large π-conjugated rigid planar structure, which can greatly reduce non-radiative energy dissipation such as intramolecular rotation and vibration, and is conducive to improving the luminous efficiency and performance of the platinum (II) complex. The O∧C∧N∧N tetradentate platinum (II) complex metal organic material has great application values in organic light-emitting diodes, and is used as a phosphorescent doping material to produce a red light OLED device with high luminous efficiency. Applications of and methods of preparing the O∧C∧N∧N tetradentate platinum (II) complex are described.