A display device includes a display panel, a driving unit, a common voltage generating unit and a first compensating unit. The display panel includes a plurality of pixel units. Each of the pixel units has a switching element and a storage capacitor electrically connected to the switching element. The driving unit applies a driving signal to the switching element. The common voltage generating unit applies a first common voltage to the storage capacitor. The first compensating unit compensates for a distorted portion of the first common voltage based on a fed back first common voltage from the display panel.