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. 24, 2011
Filed:
Dec. 07, 2007
Marek Mienko, San Jose, CA (US);
Gang Xu, Cupertino, CA (US);
Ion Bita, San Jose, CA (US);
Russell Wayne Gruhlke, Milpitas, CA (US);
Alberto Emerico Brewer, Chula Vista, CA (US);
Marek Mienko, San Jose, CA (US);
Gang Xu, Cupertino, CA (US);
Ion Bita, San Jose, CA (US);
Russell Wayne Gruhlke, Milpitas, CA (US);
Alberto Emerico Brewer, Chula Vista, CA (US);
QUALCOMM MEMS Technologies, Inc., San Diego, CA (US);
Abstract
In various embodiments described herein, a display device includes a front illumination apparatus that comprises a first light guide disposed forward of an array of display elements, such as an array of interferometric modulators, to distribute light across the array of display elements. The light guide panel is edge illuminated by a light source positioned behind the array display elements. The light from such a light source is coupled to a second light guide disposed behind the array of display elements and positioned laterally with respect to the light source. The light in the second light guide is coupled into the first light guide using a small optical coupling element such as a turning mirror. In some embodiments the second light guide may comprise the backplate of the display device.