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:
Feb. 02, 2021
Filed:
May. 08, 2018
Black matrix, preparation method therefor, and system thereof, display substrate, and display device
Ordos Yuansheng Optoelectronics Co., Ltd., Inner Mongolia, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., Inner Mongolia, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A black matrix, a preparation method therefor, and a system thereof, a display substrate, and a display device are provided. The preparation method includes: forming a black matrix thin film on a substrate; on one side, away from the substrate, of the black matrix thin film, carrying out first exposure processing on the black matrix thin film; on one side, close to the substrate, of the black matrix thin film, carrying out second exposure processing on the black matrix thin film; and developing the black matrix thin film after the first exposure processing and the second exposure processing to form the black matrix.