Liquid crystal display and driving method thereof

A liquid crystal display, comprising:

• a backlight module;
• and
• a pixel array comprising:
• a first row of pixels and a second row of pixels, a thin film transistor of a first pixel in the first row of pixels is turned on by a first scan signal to receive a first pixel voltage in order to change a transmittance of the first pixel, a second pixel of the second row of pixels receiving a second pixel voltage in order to change a transmittance of the second pixel, the first row of pixels and the second row of pixels being sequentially driven;
• wherein a pixel electrode voltage of the first pixel is adjusted at a first predetermined time point after the first pixel receives the first pixel voltage and before the thin film transistor of the first pixel is turned on by a second scan signal next to and immediately following the first scan signal, a pixel electrode voltage of the second pixel is adjusted at a second predetermined time point after the second pixel receives the second pixel voltage, and the second predetermined time point follows the first predetermined time point;
• and
• wherein when the first pixel voltage substantially equals the second pixel voltage, an integrated value of the transmittance of the first pixel over time in the lighting period of the backlight module is a first light intensity value, an integrated value of the transmittance of the second pixel over the time in the lighting period of the backlight module is a second light intensity value, and the difference between the first light intensity value and the second light intensity value is substantially smaller than 20% of the first light intensity value.

A method for driving a liquid crystal display, the liquid crystal display comprising a back light module and a pixel array having a first row of pixels and a second row of pixels, the method comprising:

• (a) turning on a thin film transistor of a first pixel in the first row of pixels by a first scan signal and outputting a first pixel voltage to the first pixel in the first row of pixels to change a transmittance of the first pixel, and then outputting a second pixel voltage to a second pixel in the second row of pixels to change a transmittance of the second pixel;
• (b) turning on the backlight module;
• (c) adjusting a pixel electrode voltage of the first pixel at a first predetermined time point to lower a transmittance of the first pixel after outputting the first pixel voltage, after the first pixel reaches a maximum transmittance and before turning on the thin film transistor of the first pixel by a second scan signal next to the first scan signal;
• and
• (d) adjusting a pixel electrode voltage of the second pixel at a second predetermined time point to lower a transmittance of the second pixel after outputting the second pixel voltage and after the second pixel reaches a maximum transmittance, wherein the second predetermined time point is subsequent to the first predetermined time point,
• wherein when the first pixel voltage substantially equals the second pixel voltage, an integration of the transmittance of the first pixel over time in a lighting period of the backlight module is a first light intensity value and an integration of the transmittance of the second pixel over the time in the lighting period of the backlight module is a second light intensity value, and the difference between the first light intensity value and the second light intensity value is substantially smaller than 20% of the first light intensity value.

A liquid crystal display, comprising:

• a backlight module;
• and
• a pixel array comprising:
• a first row of pixels and a second row of pixels, a thin film transistor of a first pixel in the first row of pixels is turned on by a first scan signal to receive a first pixel voltage in order to change a transmittance of the first pixel, a second pixel of the second row of pixels receiving a second pixel voltage in order to change a transmittance of the second pixel, the first row of pixels and the second row of pixels being sequentially driven;
• wherein a pixel electrode voltage of the first pixel is adjusted at a first predetermined time point to lower a transmittance of the first pixel after the first pixel receives the first pixel voltage, after the first pixel reaches a maximum transmittance and before the thin film transistor of the first pixel is turned on by a second scan signal next to the first scan signal, a pixel electrode voltage of the second pixel is adjusted at a second predetermined time point to lower a transmittance of the second pixel after the second pixel receives the second pixel voltage and after the second pixel reaches a maximum transmittance, and the second predetermined time point follows the first predetermined time point;
• and
• wherein when the first pixel voltage substantially equals the second pixel voltage, an integrated value of the transmittance of the first pixel over time in the lighting period of the backlight module is a first light intensity value, an integrated value of the transmittance of the second pixel over the time in the lighting period of the backlight module is a second light intensity value, and the difference between the first light intensity value and the second light intensity value is substantially smaller than 20% of the first light intensity value.