Abstract: A method for controlling polarity of each subpixels of a display panel by using a pattern detection manner is provided. The method includes the following steps: receiving image data of each subpixels of the display panel, in which the image data of the subpixels corresponds to an image pattern displayed on the display panel; performing the pattern detection manner to determine whether the image pattern is a killer pattern which induces occurrence of horizontal stripes on the display panel; employing a 1-column inversion method to drive the display panel when the image pattern is not the killer pattern; and employing a 2-column inversion method to drive the display panel when the image pattern is the killer pattern.

Abstract: A driving circuit with reduced power consumption and a liquid crystal display using the same. The driving circuit includes at least a power circuit, a source driver and a VCOM driver. The power circuit is coupled to a power supply to receive a power signal to generate a positive supply voltage and an inverted power signal. The source driver includes a first source operational amplifier. The first source operational amplifier is powered by the positive supply voltage and a power ground, to couple a positive polarity display voltage to a first terminal of a first display capacitor of a pixel array. The VCOM driver includes a VCOM operational amplifier. The VCOM operational amplifier provides a second terminal of the first display capacitor with a VCOM voltage, and a negative power terminal of the VCOM operational amplifier is coupled to the inverted power signal.