APPARATUS AND METHOD FOR DRIVING LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a driving apparatus of a liquid crystal display device for reducing or automatically restoring a driving current of a light source by inverting or re-inverting a phase of a driving current which is supplied to a light source of a liquid crystal display device.

SOLUTION: A driving apparatus of a liquid crystal display device comprises: a driving controller 210 that reduces or restores a duty ratio of a driving control signal which controls a generation of a driving current of a backlight assembly 150 in accordance with whether an enable signal is applied or not; a master inverter 220 that reduces or restores a driving current of the backlight assembly 150 in accordance with a duty ratio of a driving control signal from the driving controller 210; a slave inverter 230 that reduces or restores a driving current of the backlight assembly 150 in accordance with a duty ratio of the driving control signal; and a current limiting circuit 240 that applies the enable signal to a ground or the driving controller 210 in accordance with a phase of feedback currents from the master inverter 220 and the slave inverter 230.

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