Method and system for LCD panel light source selection

Details Method and system for LCD panel light source selection Method and system for LCD panel light source selection

2005-09-13

2005-09-13

Hjerpe, Richard (Department: 2675)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

Reexamination Certificate

active

06943770

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.

REFERENCES:
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patent: 6359392 (2002-03-01), He
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patent: 2003/0067436 (2003-04-01), Hara et al.
patent: 2004/0100789 (2004-05-01), Ju

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