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:
Sep. 13, 2005
Filed:
Dec. 19, 2002
Marcella A. Garcia, Austin, TX (US);
Eugen Munteanu, Austin, TX (US);
Stefan Peana, San Diego, CA (US);
Marcella A. Garcia, Austin, TX (US);
Eugen Munteanu, Austin, TX (US);
Stefan Peana, San Diego, CA (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
A method and system selects between a LED light source and an electroflorescent light source, such as a CCFL light source, to illuminate a LCD panel that displays information generated by an information handling system. A light source controller selects one or both of LED and CCFL light sources to illuminate the LCD panel based on one or more predetermined factors, such as the power consumption of the light source for a selected display brightness. In one embodiment, the light source controller preserves battery power of a portable information handling system by selection of one of the light sources based on a determination of which light source will consume the least power for a selected display brightness level.