Inverter for driving backlight devices in a large LCD panel

Details Inverter for driving backlight devices in a large LCD panel Inverter for driving backlight devices in a large LCD panel

2006-04-11

2009-11-17

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S307000, C315S224000, C315S2090SC, C315S276000

Reexamination Certificate

active

07619371

ABSTRACT:
Two out-of-phase inverters are used for driving a backlight for large LCD panels. The lamp currents of each inverter are regulated to substantially the same level to ensure the same brightness in the lamps without any current balancing devices. The switching frequencies in both inverters are synchronized and maintained in an out-of-phase condition during operation.

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