A pixel structure is disclosed. The pixel structure includes a substrate, a plurality of scan lines, and a plurality of data lines crossing the scan lines to form pixel unit areas, where the data lines are insulated from the scan lines. The pixel structure also includes a plurality of first electrodes formed in the pixel unit areas, a plurality of second electrodes insulated from the first electrodes and located closer to the substrate than the first electrodes, and a plurality of signal lines located in a same layer as topmost electrodes farthest from the substrate, where the signal lines are arranged to be insulated from the topmost electrodes.