An array substrate includes a plurality of pixel units, each of the pixel units includes a pixel electrode and a common electrode that are insulated from each other, and a conductive layer that is electrically connected in parallel to the common electrode. A double-layer metal layer is deposited on the common electrode at an opaque region of the pixel electrode to form a ring structure around a transparent region of the pixel electrode, thus reducing the resistances of the common electrodes. The ring structure can be U-shaped, half-ring shaped, or full-ring shaped.