Abstract: A LCD device includes a liquid crystal panel, an upper polarizing plate disposed above the liquid crystal panel, a lower polarizing plate disposed under the liquid crystal panel, a retardation film formed on a polarization layer of the upper polarizing plate, and a liquid crystal polarizing film attached to the retardation film. Since the LCD device uses a polarized liquid crystal film that is formed of a liquid crystal films to perform a mirror function, the deterioration in the image quality due to the surface unevenness is improved. Also, since the LCD device uses a polarized liquid crystal film to enable the display function and the mirror function of the LCD device, a user who wears polarized sunglasses can detect the mirror function.