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:
Apr. 01, 2025
Filed:
Dec. 22, 2020
Applicant:
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan, CN;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01); H10K 50/15 (2023.01); H10K 85/60 (2023.01);
U.S. Cl.
CPC ...
H10K 50/15 (2023.02); H10K 85/615 (2023.02); H10K 85/624 (2023.02); H10K 85/633 (2023.02); H10K 85/657 (2023.02); H10K 85/6574 (2023.02);
Abstract
A hole transport material, a manufacturing method thereof, and an electroluminescent device are provided. A main chain of a molecular structure of the hole transport material includes spiro aromatic amine, and a branch chain of the molecular structure of the hole transport material includes an aryl group or a heteroaryl group. The hole transport material can effectively improve performance of hole injection and hole transport, thereby balancing electrons and holes in electroluminescent devices and realizing relatively low voltage and relatively high efficiency.