A display device is provided, the display device comprising a display panel, the display panel including an opposed substrate (1) and an array substrate (2) arranged opposite to each other, and a liquid crystal layer (3) arranged therebetween, the display panel being divided into a central region (61) and a peripheral region (62) surrounding the central region (61), and an additional polarizer (6) being arranged in a region between the array substrate (2) and the liquid crystal layer (3) and corresponding to the peripheral region (62). The display device can effectively prevent the peripheral region (62) of the display panel from light leakage.