The invention discloses a display device and a display method.The display device comprises a display module and a refraction module.The display module is provided with a display area and is configured to emit imaging light rays to the preset direction from the display area.The refraction module is arranged on the display side of the display module and configured to diffuse or converge at least part of the imaging light rays.By means of the display device and the display method, the comfort of a head-mounted virtual reality device can be improved, or a non-head-mounted display device with a spying preventing function is provided.