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:
Jan. 06, 2026
Filed:
Feb. 17, 2022
Boe Technology Group Co., Ltd., Beijing, CN;
Jiayu He, Beijing, CN;
Kun Zhao, Beijing, CN;
Yan Qu, Beijing, CN;
Liping Lei, Beijing, CN;
Ce Ning, Beijing, CN;
Zhengliang Li, Beijing, CN;
Hehe Hu, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
The present disclosure provides a metal oxide thin film transistor, an array substrate and a display device. A metal oxide thin film transistor in the present disclosure includes: a substrate, a first metal oxide semiconductor layer on the substrate, and a second metal oxide semiconductor layer on a side of the first metal oxide semiconductor layer away from the substrate; a carrier mobility of the first metal oxide semiconductor layer is higher than that of the second metal oxide semiconductor layer; a material of the first metal oxide semiconductor layer includes: a first metal oxide doped with a rear earth element; a difference between an electronegativity of the rare earth element and an electronegativity of oxygen element is greater than or equal to a difference between an electronegativity of a metal element in the first metal oxide and the electronegativity of oxygen element.