Method for controlling driving of backlight part in mobile phone

PURPOSE: A method of controlling backlight part driving of a mobile phone is provided to selectively drive a keypad's backlight part and a display's backlight according to cover opening/closing movements or key inputting movements, to supply necessary backlight only, so as to prevent power consumption. CONSTITUTION: A controller checks whether a flip or folder cover is opened(400), and checks whether a key is inputted from a keypad(402). If a cover opening is sensed through a cover opening/closing sensor, the controller turns a display's backlight and the keypad's backlight on together(404). The controller checks whether a preset time elapses(406). If so, the controller turns the display's backlight and the keypad's backlight off, and completes the process(408). If the key is inputted in the step of "402", the controller turns on the display's backlight only(410). The controller checks whether the preset time elapses(412). If so, the controller turns off the display's backlight and completes the process(414).