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:
May. 05, 2020
Filed:
Jan. 12, 2018
Shanghai Tianma Micro-electronics Co., Ltd., Shanghai, CN;
SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., Shanghai, CN;
Abstract
A display panel is provided. The display panel comprises a display panel; and a light modulation substrate disposed opposite to the display panel. The light modulation substrate includes a base layer and a transparent dielectric layer covering the base layer. The base layer has a first surface facing the display panel and an opposing second surface, and the transparent dielectric layer is disposed on the first surface of the base layer. A plurality of reflective gratings are disposed on the base layer. The transparent dielectric layer has a first surface facing the base layer and an opposing second surface, and the second surface of the transparent dielectric layer is a transparent dielectric layer surface. The transparent dielectric layer has a refractive index of n, and n>1. Outgoing light of the display device converges to a plurality of light-emitting points outside the display device.