Pixel array substrate

A pixel array substrate, having a pixel region and a circuit region adjacent to the pixel region, the pixel array substrate comprising:

• a plurality of display pixel units, disposed in the pixel region;
• and
• a plurality of dummy pixel units, disposed in the circuit region, each of the dummy pixel units comprising:
• a data line and a scan line;
• a plurality of switching elements, electrically connected to the data line and the scan line;
• and
• a plurality of pixel electrodes, electrically connected to the switching elements,
• wherein electrostatic currents in the pixel region are dissipated by the dummy pixel units in the circuit region,
• wherein each of the dummy pixel units comprises:
• a thin film transistor, electrically connected to the data line and the scan line;
• a pixel electrode, electrically connected to the thin film transistor;
• a common line, disposed parallel to the scan line;
• a first switching element, one end of the first switching element being electrically connected to the data line;
• a second switching element, one end of the second switching element being electrically connected to the other end of the first switching element, and the other end of the second switching element being electrically connected to the common line;
• a third switching element, one end of the third switching element being electrically connected to the other end of the second switching element and the common line;
• and
• a fourth switching element, one end of the fourth switching element being electrically connected to the other end of the third switching element, and the other end of the fourth switching element being electrically connected to the other end of the first switching element and the data line.