An exemplary TFT substrate includes a substrate, signal lines, a common electrode, and a pixel electrode. The signal lines are arranged on the substrate along two perpendicular directions. One of each two signal lines perpendicular to each other includes a plurality of segments. Every two adjacent segments are arranged on two opposite sides of the other signal line of the two signal lines. The TFT substrate further includes a connection line. The connection line interconnects the two adjacent segments. The common electrode is arranged in a same layer as the connection line, and overlaps the segmented signal line along a direction perpendicular to the substrate.