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:
Jun. 15, 2021
Filed:
Mar. 16, 2020
Tcl China Star Optoelectronics Technology Co., Ltd., Guangdong, CN;
Xianjie Li, Shenzhen, CN;
Yuanchun Wu, Shenzhen, CN;
Shijian Su, Shenzhen, CN;
Yunchuan Li, Shenzhen, CN;
TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Guangdong, CN;
Abstract
An organic light emitting diode includes a light emitting layer that includes a light emitting material of the constitutional formula The structure is unitary, and the formula weight is determined, and the better solubility and film formation are provided, and the thin film status is stable; it possesses a very high decomposition temperature and a lower sublimation temperature, and is easy to sublime to be light emitting material of high purity, and can be applied for small molecule organic light emitting diode. In the method for manufacturing the light emitting material, p-bromothiophenol and 4-Bromo-2-fluorobenzonitrile are employed to be starting materials, and an intermediate of the light emitting material is obtained with a series of simple reactions, and finally, the light emitting material is obtained with Ullmann reaction or Suzuki reaction, and these steps are simple and the production is high.