The invention provides a thin film transistor (TFT) array substrate and a display panel. The TFT array substrate is disposed with multiple pixels arranged in an array. Each pixel includes first through third sub-pixels sequentially arranged along a first direction. The first through third sub-pixels are connected to a same scan line. The TFT array substrate further is disposed with first through third data lines sequentially arranged along the first direction. The first through third data lines respectively are for driving the first through third sub-pixels. The first sub-pixel includes first and second areas, the second sub-pixel includes third and fourth areas, and the third sub-pixel includes fifth and sixth areas, arranged along a second direction. A voltage difference between a sub-pixel electrode in the sixth area and a common electrode is different from a voltage difference between a sub-pixel electrode in the fifth area and the common electrode.