METHOD, DEVICE AND TERMINAL FOR REGULATING BRIGHTNESS OF LCD ON TERMINAL EQUIPMENT

摘要

There are a method for regulating brightness of LCD on a terminal equipment and a device for regulating brightness of LCD on a terminal equipment. The said method involves gaining a pre-preserved duty ratio value corresponding to an application mode to be switched to based on switching information of the application mode of the terminal equipment, generating a pulse width modulating PWM signal with the duty ratio value, adjusting the current of a power supply circuit of a LCD that is to be switched to the application mode using the said PWM signal, thus changing the brightness of the LCD.