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:
Apr. 14, 2020
Applicant:
Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd., Hebei, CN;
Inventors:
Jianhua Cao, Hebei, CN;
Zhe Shao, Hebei, CN;
Yan Sui, Hebei, CN;
Minhui Jia, Hebei, CN;
Shibo Wang, Hebei, CN;
Weizhuang He, Hebei, CN;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 51/50 (2006.01); H01L 51/56 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0085 (2013.01); H01L 51/0004 (2013.01); H01L 51/0008 (2013.01); H01L 51/5016 (2013.01); H01L 51/56 (2013.01);
Abstract
The present invention relates to an organic electroluminescent material, an organic electroluminescent device, and a method for preparing the organic electroluminescent device. Due to comprising an organic compound A with 3.0 eV>ET≥2.0 eV and a compound B of M(LA)x(LB)y(LC)z, the organic electroluminescent material of the present invention has the advantages of an increased luminescence lifetime and/or a reduced operating voltage on the basis of maintaining other electronic properties at a certain level.