An apparatus of driving a lamp includes a first inverter board having a first inverter for supplying a first high-voltage alternating-current waveform via a first high-voltage line to a first electrode of the lamp, and a second inverter board having a second inverter for supplying a second high-voltage alternating-current waveform via a second high-voltage line to a second electrode of the lamp, the second inverter being different from the first inverter.