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. 20, 2025
Filed:
Nov. 21, 2023
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Scott Piecuch, Seattle, WA (US);
Nobuyuki Suzuki, Kirkland, WA (US);
Ying Zheng, Sammamish, WA (US);
MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US);
Abstract
Display devices, display systems, backlight assemblies, and methods described herein provide compound backlights with edge lighting. In an aspect, the backlight includes a waveguide, first lights, and an array layer. The first lights are arranged along an edge of the waveguide. Each of the first lights transmits light into the waveguide. The array layer is coupled to the waveguide and comprises a reflective layer and second lights. The reflective layer reflects the light transmitted by the first lights into the waveguide. The second lights are arranged between the waveguide and the reflective layer. Each of the second lights transmits light into the waveguide layer through the first surface. In a further aspect, the second lights are oriented away from the waveguide and toward the reflective surface. In another aspect, a compound backlight includes a reflective surface, arranged between a waveguide and second lights, that reflects a portion of received light.