A thin film transistor (TFT) array substrate including a substrate, pixel units, scan and data lines, inner anti-static rings, first and second thin film transistors is provided. The pixel units are arranged on a display region of the substrate, and the scan and data lines are arranged on the substrate. Each pixel unit is controlled by the corresponding scan and data line. The inner anti-static rings, the first and second TFTs are arranged on a peripheral circuit region of the substrate around the display region. The gate and source of each first TFT are connected to one part of the inner anti-static ring, and the drain of each first TFT is connected to the scan line respectively. The gate and source of each second TFT are connected to the other part of the inner anti-static ring, and the drain of each second TFT is connected to the data line respectively.