LIGHT EMITTING DIODE DRIVER FOR BACKLIGHT UNIT

摘要

PURPOSE: A light emitting diode driving device for a backlight unit is provided to remove a need of a complex feedback circuit, thereby easily configuring a circuit. CONSTITUTION: A power supply unit(110) supplies lamp driving power with a preset voltage level. A light emitting diode unit(120) receives power for driving the lamp supplied from the power supply unit to emit light. A current control unit(130) controls a current flowing in the light emitting diode unit. A control unit(140) controls a current of the current control unit by referring to a lookup table(141) with a preset brightness value. The light emitting diode unit includes a light emitting diode group.