Patent attributes
A display control method having dynamic backlight adjusting mechanism is provided that includes the steps outlined below. A backlight control signal having a backlight period that is 1/N times of a Vsync period of a Vsync signal is generated. A first Vsync period end time after the Vsync period switches from a first period length to a second period length is calculated. A first backlight period end time after the first Vsync period end time is determined as a transition period start time. A time difference between the transition period start time and the first Vsync period end time is calculated. A transition period length between the second period length and the time difference is calculated and divided into interval lengths each equals to a third period length. The backlight control signal operated to have the third period length is generated within the transition period.