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. 06, 2025
Filed:
Nov. 20, 2023
Applicant:
Valve Corporation, Bellevue, WA (US);
Inventors:
Joshua Mark Hudman, Issaquah, WA (US);
Douglas Vanderwel, Kent, WA (US);
Assignee:
Valve Corporation, Bellevue, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/16 (2005.12); F21V 8/00 (2005.12);
U.S. Cl.
CPC ...
G02B 6/0061 (2012.12); G02B 6/003 (2012.12); G02B 6/0036 (2012.12); G02B 6/0043 (2012.12); G02B 6/0068 (2012.12); G06F 1/163 (2012.12);
Abstract
A backlight assembly includes a display panel (such as a liquid crystal display), an optics system for focusing a portion of the display onto an eye of a user, a light guide, a plurality of extraction features positioned on a surface of the light guide, and at least one laser diode for directing light into the light guide. The light guide is sized and dimensioned to illuminate only a portion of the display that is focused by the optics system; with the plurality of light extraction features configured to diffuse light toward the display panel for back illuminating the display panel.