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:
Mar. 03, 2026
Filed:
Feb. 25, 2022
Chengdu Boe Optoelectronics Technology Co., Ltd., Chengdu, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Ruoxiang Li, Beijing, CN;
CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chengdu, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A display panel includes: a display substrate, including a plurality of sub-pixels; a first light extraction layer, arranged on a light output side of the display substrate, where the first light extraction layer includes a plurality of first protrusions, and an orthographic projection of the first protrusions on the display substrate overlaps with an orthographic projection of the sub-pixels on the display substrate; and a second light extraction layer, arranged on the light output side of the display substrate and covering at least part of the first protrusions, where the second light extraction layer includes a plurality of first grooves, the orthographic projection of the first protrusions on the display substrate overlaps with an orthographic projection of the first grooves on the display substrate, and a refractive index of the second light extraction layer is smaller than a refractive index of the first light extraction layer.