LIGHTING SYSTEM USING AN LCD BACKLIGHT OF MOBILE TERMINAL, PARTICULARLY FOR ALLOWING A USER TO USE THE LCD BACKLIGHT OF A MOBILE TERMINAL AS A FLASH LAMP AS NECESSARY

摘要

PURPOSE: A lighting system using an LCD backlight of a mobile terminal is provided to allow a user to use an LCD backlight as a lighting by operating an LCD backlight up to a rated threshold value and deleting LCD display content. CONSTITUTION: An operation switch(10) indicates initiation or completion of a lighting. A brightness control switch(20) controls brightness. A controller(30) determines each operation of the switches(10,20) and provides a power control signal with a previously set different threshold value thereto. A power source unit(40) provides power to every electrical element of a mobile terminal. A backlight driving unit(50) receives the power control signal of the controller(30) and generates suitable backlight driving power from the power of the power source unit(40). A backlight(60) has a high-efficiency light emitter operated by the power provided from the backlight driving unit(50).