Patent ID: 7446489
Filing Date: 2008-11-04
Classification: H05B

Abstract:
1. An apparatus of driving a light source for a display device, the apparatus comprising: an inverter applying a voltage to the light source to be turned on or off; a temperature sensor sensing a temperature and generating a first signal based on the sensed temperature; a buffer generating a second signal based on the first signal from the temperature sensor and providing the second signal for the inverter controller; and an inverter controller which generates a control signal for controlling the inverter depending on the second signal of the buffer, wherein the voltage applied to the light source is increased based on the control signal, the second signal is a square wave having a first level and a second level, and the second signal is at the first level when the sensed temperature is higher than a predetermined temperature and the second signal is at the second level when the sensed temperature is lower than a predetermined temperature.