In the present disclosure, it is provided a display device, which may include: a detection unit, configured to detect position information with respect to viewer's eyes; a processing unit, configured to obtain the position information with respect to the viewer's eyes from the detection unit, and obtain a screen display image corresponding to a visual angle of the eyes based on the position information with respect to the eyes and parameters for a stereo image to be displayed; and a display unit, configured to obtain the screen display image from the processing unit, and display the screen display image on the display unit.