View angle control element and display device provided with the same

A display device comprising an image display device that displays an image, and a view angle control element that is laminated on the image display device and controls a view angle of the image display device,

• wherein the image display device includes a linearly polarizing plate on a side of the view angle control element,
• the view angle control element is a laminated film including at least:
• a phase difference plate whose refractive index satisfies nx=ny>nz;
• a pair of ¼ wavelength phase difference plates placed so as to sandwich the phase difference plate;
• and
• a linearly polarizing plate that is laminated on a surface of the ¼ wavelength phase difference plate that is not opposed to the image display device among the pair of ¼ wavelength phase difference plates.

A view angle control element that is laminated on an image display device having a linearly polarizing plate and controls a view angle of the image display device,

• wherein the view angle control element is a laminated film including at least:
• a phase difference plate whose refractive index satisfies nx=ny>nz;
• a pair of ¼ wavelength phase difference plates placed so as to sandwich the phase difference plate;
• and
• a linearly polarizing plate that is laminated on a surface of the ¼ wavelength phase difference plate that is not opposed to the image display device among the pair of ¼ wavelength phase difference plates.