A display device includes a display component (1), which includes a liquid crystal panel and a backlight source (11) with the liquid crystal panel including a liquid crystal cell, a first polarizing sheet (12) located on a side of the liquid crystal cell near the backlight source, and a second polarizing sheet (16) located on a side of the liquid crystal cell away from the backlight source. One of the first polarizing sheet (12) and the second polarizing sheet (16) is movable.