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:
Jul. 12, 2022
Filed:
Jan. 06, 2020
Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Qun Li, Beijing, CN;
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A display panel includes: a plurality of light emitting units each having a light emitting side and a back side; a transparent substrate disposed over the light emitting side of the light emitting unit; a transparent film disposed over a side of the transparent substrate opposing the light emitting unit, wherein: the transparent film has an effective refractive index smaller than a refractive index of the transparent substrate; and the transparent film has a position-dependent refractive index progressively smaller along a light emitting direction from the light emitting unit.