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:
Jun. 08, 2010
Filed:
Apr. 30, 2007
Jeffrey B. Sampsell, Pueblo West, CO (US);
Russell W. Gruhlke, Santa Clara, CA (US);
Mark Mienko, San Jose, CA (US);
Gang Xu, Cupertino, CA (US);
Ion Bita, San Jose, CA (US);
Jeffrey B. Sampsell, Pueblo West, CO (US);
Russell W. Gruhlke, Santa Clara, CA (US);
Mark Mienko, San Jose, CA (US);
Gang Xu, Cupertino, CA (US);
Ion Bita, San Jose, CA (US);
QUALCOMM MEMS Technologies, Inc., San Diego, CA (US);
Abstract
A front light guide panel including a plurality of embedded surface features is provided. The front light panel is configured to deliver uniform illumination from an artificial light source disposed at one side of the font light panel to an array of display elements located behind the front light guide while allowing for the option of illumination from ambient lighting transmitted through the light guide panel. The surface embedded surface relief features create air pockets within the light guide panel. Light incident on the side surface of the light guide propagates though the light guide until it strikes an air/light material guide interface at one on the air pockets. The light is then turned by total internal reflection through a large angle such that it exits an output face disposed in front of the array of display elements.