Patent ID: 7804480

Claim:
A hybrid backlight driving apparatus for driving a hybrid backlight assembly of a liquid crystal display device, the hybrid backlight assembly having a plurality of lamps and a plurality of light emitting diodes, the hybrid backlight driving apparatus comprising: a lamp inverter for converting a first DC voltage into a lamp driving voltage and supplying the lamp driving voltage to the plurality of lamps; and a light emitting diode driver for converting the first DC voltage into a light emitting diode driving voltage and supplying the light emitting diode driving voltage to the plurality of light emitting diodes, wherein the lamp inverter includes a lamp driving controller for controlling driving of the plurality of lamps in response to a burst dimming signal for the plurality of lamps, a first DC/AC switching device and a second DC/AC switching device for respectively converting the first DC voltage under control of the lamp driving controller to a first AC voltage and a second AC voltage, a first transformer for boosting the first AC voltage and supplying the boosted first AC voltage to a first terminal of each of the plurality of lamps and a second transformer for boosting the second AC voltage and supplying the boosted second AC voltage to a second terminal of each of the plurality of lamps, the boosted second AC voltage having a phase opposite to the boosted first AC voltage.