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. 05, 2013
Filed:
Apr. 06, 2009
Russell Wayne Gruhlke, Milpitas, CA (US);
Ion Bita, San Jose, CA (US);
Marek Mienko, San Jose, CA (US);
Gang Xu, Cupertino, CA (US);
Russell Wayne Gruhlke, Milpitas, CA (US);
Ion Bita, San Jose, CA (US);
Marek Mienko, San Jose, CA (US);
Gang Xu, Cupertino, CA (US);
QUALCOMM MEMS Technologies, Inc., San Diego, CA (US);
Abstract
Light modulator displays may be illuminated using a light guide comprising diffractive optics that directs light onto the light modulators. The light guide may comprise, for example, a holographic light turning element that turns light propagating within the light guide onto the array of light modulators. In some embodiments, the holographic element has multiple holographic functions. For example, the holographic element may additionally collimate ambient light or diffuse light reflected form the light modulators.