Backlight unit

Details Backlight unit Backlight unit

2007-08-07

2007-08-07

Sember, Thomas M. (Department: 2885)

Illumination

Light source and modifier

With ventilating, cooling or heat insulating means

C362S346000, C362S228000, C362S229000

Reexamination Certificate

active

11312447

ABSTRACT:
A backlight unit of a hybrid structure is disclosed, to improve heat-sink efficiency, that includes a plurality of fluorescent lamps oriented in one direction inside a cover bottom; a metal PCB attached to an inner surface of the cover bottom; a plurality of LED lamps each positioned between the fluorescent lamps and on the metal PCB; a hole in a portion of the cover bottom that exposes a rear surface of the metal PCB; and a heat-sink plate directly attached to the metal PCB through the hole in the cover bottom.

REFERENCES:
patent: 6608614 (2003-08-01), Johnson
patent: 6762562 (2004-07-01), Leong
patent: 6853151 (2005-02-01), Leong et al.
patent: 7192160 (2007-03-01), Reiff et al.
patent: 2004/0222516 (2004-11-01), Lin et al.
patent: 2004/0233671 (2004-11-01), Staufert
patent: 2005/0157500 (2005-07-01), Chen et al.
patent: 2005/0265023 (2005-12-01), Scholl

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