An object of the invention is to provide an image display device that is prevented from suffering from iridescent unevenness, even when produced using a film with a high level of mechanical properties, chemical resistance and water-barrier properties, such as a polyester film, as a polarizer-protective-film. Provided is an image display device including an image display cell and a first polarizing plate placed on a viewer side of the image display cell. The first polarizing plate includes a polarizer and a first protective film. The first protective film is placed on a viewer-side principal surface of the polarizer and satisfies following relations: (i) 0 nm<=Re1<=3000 nm; (ii) Nz1>=7; and (iii) Rth1>2500 nm.