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:
May. 19, 2026
Filed:
Sep. 27, 2022
Tcl Technology Group Corporation, Guangdong, CN;
Kaimin Chen, Guangdong, CN;
TCL TECHNOLOGY GROUP CORPORATION, Huizhou, CN;
Abstract
The present application provides a preparation method of a charge transport layer, which includes steps of: forming a first film layer by a first solution containing a functional material, forming a second film layer by a second solution containing a charge transport material, the first film layer and the second film layer are in contact with each other, or forming a mixed film layer by a mixed solution of the first solution and the second solution; and removing the functional material to obtain a charge transport layer. The functional material is an organic substance containing an electron-donating group, a surface of the charge transport material has a metal cation dangling bond, and the electron-donating group is capable of being bonded with the metal cation dangling bond.