Backlight assembly and method of driving the same

Details Backlight assembly and method of driving the same Backlight assembly and method of driving the same

2009-01-16

2011-11-29

Tran, Anh (Department: 2819)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S294000, C315S295000, C315S307000

Reexamination Certificate

active

08067897

ABSTRACT:
A backlighting assembly for an LCD display is divided into a plurality of selective dimming areas each having a respective plurality of light generating blocks. A plurality of driving units supply power to the light generating blocks. The light generating blocks are grouped into light source groups. Each of the driving units supplies power to at least one light generating block in a first light source group and a second light generating block in a second light source group but not to all the light generating blocks in any one light source group. Light generating blocks connected to a same driving unit may be distributedly arranged to be nonadjacent to one another. Plural driving units are used to fully power a brightly lit one dimming area, thereby reducing the loads on the individual driving units and preventing overheating.

REFERENCES:
patent: 2007/0013647 (2007-01-01), Lee et al.
patent: 2007/0176886 (2007-08-01), Nagasawa
patent: 2007/0236447 (2007-10-01), Lee et al.
patent: 2007/0262727 (2007-11-01), Suzuki et al.
patent: 2008-071603 (2008-03-01), None
patent: 10-2007-0100040 (2007-10-01), None
patent: 10-2007-0100631 (2007-10-01), None

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