Liquid crystal display and driving method thereof

A driving method adopted in a liquid crystal display comprising a liquid crystal display panel, a backlight module driving circuit and a backlight module, the liquid crystal display panel having a plurality of liquid crystal molecules and a plurality of horizontal display areas, each of the horizontal display areas including a plurality of pixels in a row, the backlight module comprising a plurality of linear lighting devices, the driving method comprising the steps of:

• utilizing a dimming control unit to output a plurality of dimming control signals, each of the dimming control signals having a dimming frequency, the dimming frequency of each of the dimming control signals being higher than a frame rate of the liquid crystal display panel and the dimming frequency of each of the dimming control signals being a multiple of the frame rate;
• adjusting a phase of each of the dimming control signals to delay each of the dimming control signals by a period of delay time one by one, and then outputting the delayed dimming control signals to the backlight module driving circuit;
• utilizing the backlight module driving circuit to periodically drive the linear lighting devices in sequence according to the delayed dimming control signals, wherein a part of the driven linear lighting devices corresponds to the pixels in the horizontal display areas, and
• outputting a scan signal such that the liquid crystal molecules of the pixels in each of the horizontal display areas reach a maximum transmission at a maximum time, and a difference between each maximum time of each horizontal display area equals the delay time.

A liquid crystal display, comprising:

• a liquid crystal display panel having a plurality of liquid crystal molecules and a plurality of horizontal display areas, each of the horizontal display areas including a plurality of pixels in a row;
• a backlight module, comprising a plurality of linear lighting devices respectively corresponding to the pixels in each of the horizontal display areas;
• a dimming control unit for generating a plurality of dimming control signals, each of the dimming control signals having a dimming frequency, the dimming frequency of each of the dimming control signals being equal to F multiplied by a frame rate of the liquid crystal display panel and F being a positive integer larger than one, wherein the dimming control unit adjusts a phase of each of the dimming control signals such that each of the dimming control signals is delayed by a period of delay time one by one;
• a backlight module driving circuit for periodically driving the linear lighting devices in sequence according to the plurality of dimming control signals;
• and
• a scan driver for outputting a scan signal such that the liquid crystal molecules of the pixels in each of the horizontal display areas reach a maximum transmission at a maximum time, and a difference between each maximum time of each horizontal display area equals the delay time.