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:
Sep. 28, 2021
Filed:
Oct. 24, 2018
Boe Technology Group Co., Ltd., Beijing, CN;
Pengfei Gu, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
An array substrate includes a base substrate, a first buffer layer, an oxygen barrier pattern, and a second buffer layer that are disposed on the base substrate in sequence, and a plurality of first thin film transistors (TFTs) that are disposed on the second buffer layer. The oxygen barrier pattern includes a plurality of oxygen barrier portions that are insulated and spaced apart. An orthographic projection of a portion of an active layer of one first TFT between a source and a drain on the base substrate is located within a range of an orthographic projection of one corresponding oxygen barrier portion of the plurality of oxygen barrier portions on the base substrate. And an oxygen content of the first buffer layer is higher than an oxygen content of the second buffer layer.