Liquid crystal display, source driver and drive signal polarity control method thereof

A liquid crystal display, a source driver and a drive signal polarity control method thereof are disclosed. The source driver comprises a signal receiving interface, a decoder and a controller. The signal receiving interface receives an image data series flow or a data output-input indication signal. The decoder parses out polarity control information from the image data series flow or the data output-input indication signal. The controller receives the polarity control information and decides the drive polarity of multiple drive signals produced by the source driver based on the polarity control information. 种液晶显示器、源极驱动器以及其驱动信号极性的控制方法。源极驱动器包括信号接收接口、解码器以及控制器。信号接收接口接收图像数据串流或数据输出输入指示信号。解码器由图像数据串流或数据输出输入指示信号中解析出极性控制信息。控制器接收并依据极性控制信息以决定源极驱动器产生的多个驱动信号的驱动极性。