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:
Dec. 05, 2023
Filed:
May. 25, 2020
Boe Technology Group Co., Ltd., Beijing, CN;
Xiandong Meng, Beijing, CN;
Jifeng Tan, Beijing, CN;
Shuilang Dong, Beijing, CN;
Wei Wang, Beijing, CN;
Wenqu Liu, Beijing, CN;
Wenqing Zhao, Beijing, CN;
Qiuyu Ling, Beijing, CN;
Xianqin Meng, Beijing, CN;
Yishan Tian, Beijing, CN;
Zhao Kang, Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
A display panel and a manufacturing method thereof, and a display device. The display panel includes a light guide plate, an array substrate, a liquid crystal layer between the light guide plate and the array substrate, a plurality of light-extracting gratings located on one side of a light exit surface of the light guide plate, and a transparent protection layer between a film layer where the light-extracting gratings are located and the light guide plate. The light guide plate includes a plurality of light-extracting port areas, and transparent areas besides the light-extracting port areas; each light-extracting port area is provided with one light-extracting grating; the protection layer is at least provided on the transparent areas, and the protection layer is configured to prevent the light guide plate in the transparent areas from being excessively etched to form a plurality of depressions.