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:
Oct. 11, 2022
Filed:
Dec. 23, 2019
Hefei Xinsheng Optoelectronics Technology Co., Ltd., Hefei, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Liangliang Jiang, Beijing, CN;
Haifeng Wang, Beijing, CN;
Lei Guo, Beijing, CN;
Yong Jun Yoon, Beijing, CN;
Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui, CN;
Beijing BOE Technology Development Co., Ltd., Beijing, CN;
Abstract
An optical filter and manufacturing method therefor, a display substrate, and a display apparatus. The optical filter includes: a base substrate; an ordered porous film disposed on the base substrate, wherein the ordered porous film is formed with channels each of which having an extension direction at least at an angle to the base substrate and having an opening at a surface of the ordered porous film; and a plurality of quantum dots respectively disposed in at least part of the channels. The optical filter, the display substrate having the optical filter and the display apparatus can significantly improve the display colour gamut of the display apparatus.