Display device

A display device comprising:

• an illumination device;
• a display panel which modulates light from the illumination device and emits image light;
• a polarized light modulation element which transmits the image light from the display panel and diffuses external light;
• a retarder disposed on the polarized light modulation element;
• and
• a magnification mirror which magnifies an image by the image light transmitted through the polarized light modulation element, wherein
• the polarized light modulation element is a liquid crystal lens,
• the polarized light modulation element comprises a first substrate, a second substrate, a liquid crystal layer held between the first substrate and the second substrate, and a first control electrode and a second control electrode which apply voltage to the liquid crystal layer,
• the polarized light modulation element transmits first polarized light and diffuses second polarized light,
• the first polarized light is linearly polarized light having a vibration plane along a first direction, and the second polarized light is linearly polarized light having a vibration plane along a second direction orthogonal to the first direction,
• the first polarized light is equivalent to a polarized light emitted from the display panel,
• the first substrate and the second substrate are parallel with a display area of the display panel on which an image is displayed,
• the display area of the display panel is oblique to the illumination device, and
• the retarder is parallel with the first substrate or the second substrate of the polarized light modulation element.