BACKLIGHT DRIVING SYSTEM FOR LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a backlight driving system for a liquid crystal display device, enabling to downsize a product without adopting a DC-DC converter in converting a common AC power supply into a lamp driving power supply. SOLUTION: The backlight driving system includes a power supply part 110 for converting the common AC power supply into a DC power supply having a preset voltage level, an inverter part 120 for inverting the DC power supply from the power supply part into an AC power supply at a preset 1:1 inversion ratio, a boosting part 130 for boosting the AC power supply from the inverter part into a preset lamp lighting power supply, and a lamp group L for receiving the input of the lamp lighting power supply from the boosting part to emit light. COPYRIGHT: (C)2009,JPO&INPIT