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:
Aug. 23, 2022
Filed:
May. 18, 2020
Shaanxi Lighte Optoelectronics Material Co., Ltd., Xi'an, CN;
Tiantian Ma, Xi'an, CN;
Qiqi Nie, Xi'an, CN;
Zhen Feng, Xi'an, CN;
Hongyan Li, Xi'an, CN;
Xunshan Sha, Xi'an, CN;
Zhanyi Sun, Xianyang, CN;
Yalong Wang, Xi'an, CN;
Abstract
The present invention related to an organic electroluminescent material and organic electroluminescent device thereof. The organic electroluminescent material has the structural formula as shown in formula 1. Compared with a monoamine structure containing an adamantyl group, the diamine structure disclosed in the present invention has higher HOMO energy level and hole mobility, and can exhibit higher efficiency and service life than a monoamine material device. The organic electroluminescent device comprising the organic electroluminescent material has lower driving voltage, and higher luminous efficiency and service life.