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:
Feb. 25, 2020
Filed:
Dec. 09, 2016
Glotech Inc., Boston, MA (US);
Kevin Donahue, Harvard, MA (US);
GloTech, Inc., Boston, MA (US);
Abstract
The present disclosure is directed to multicolored transparent displays. In some aspects, the systems and methods disclosed herein make use of light guides that operate on the principle of total internal reflection. Light can be extracted from the light guide by altering the interface at the surface of the light guide. A display can include a light guide having a plurality of pixels on a surface of the light guide. The display can also include a light source configured to introduce light into an edge of the light guide at a first angle greater than a critical angle for total internal reflection within the light guide, such that a portion of the light is extracted from the light guide by the plurality of pixels and is directed out of the viewing side of the display.