Patent ID: 7741784
Filing Date: 2010-06-22
Classification: G09G,H05B

Abstract:
1. A light source driving apparatus comprising: a light source unit including a plurality of lamps to emit light, wherein the plurality of lamps are divided into a plurality of lamp groups; and a light source driving unit that selectively drives the plurality of lamps in response to a luminance control signal and a selection signal, wherein the light source driving unit drives all the plurality of lamp groups for a maximum luminance, while the light source driving unit drives one of the plurality of lamp groups for a minimum luminance, wherein the light source driving unit includes: a plurality of inverters that each drive a respective one of the lamp groups, a plurality of inverter controllers that each control a respective one of the inverters, and a selector that selects between supplying inverter control signals simultaneously to the plurality of inverter controllers and supplying an inverter control signal to a respective one of the plurality of inverter controllers in response to the selection signal.