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:
Jul. 12, 2022
Filed:
Apr. 01, 2019
Boe Technology Group Co., Ltd., Beijing, CN;
Pengfei Gu, Beijing, CN;
Youngsuk Song, Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
An array substrate and a manufacturing method thereof, a display panel and a display device are provided. The array substrate includes: a base substrate including a driving thin film transistor region and a switching thin film transistor region; and a buffer layer containing oxygen, the buffer layer including a first buffer part located in the driving thin film transistor region and a second buffer part located in the switching thin film transistor region; the first buffer part has a first thickness, the second buffer part has a second thickness, and the second thickness is greater than the first thickness.