An array substrate is provided. The array substrate comprises a base substrate. A plurality of gate lines, a plurality of data lines, and a common electrode are formed on the base substrate. A plurality of pixel units are defined by the intersecting of the gate lines and the data lines, a pixel electrode is provided in each of the pixel units, the common electrode extends over the pixel units and overlaps the pixel units, and also the common electrode overlaps with the gate lines and the data lines, and an overlapping region slit is provided in the common electrode for each pixel unit in an overlapping region between the common electrode and one of the gate lines and data lines surrounding the pixel unit. Also, a liquid crystal panel and a liquid crystal display comprising an array substrate are also provided.