Image display device and portable terminal device

Abstract

An image display device includes a display panel, a lens, a backlight, and a light dispersing member. The display panel includes a plurality of display units including at least pixels for displaying an image for a first point of view and a second point of view, arrayed in a matrix shape. The lens distributes lights transmitted through pixels for the first and second points of view into mutually different directions. The backlight has a plurality of convexes or concaves which refract lights. The light dispersing member is disposed between the display panel and backlight.

1 . An image display device, comprising:
 a display panel in which a plurality of display units including at least pixels for displaying an image for a first point of view and a second point of view are arrayed;   a lens for distributing lights transmitted through pixels for said first point of view and lights transmitted through pixels for said second point of view into mutually different directions;   a backlight which has a plurality of convexes or concaves which refract lights; and   a light dispersing member disposed between said display panel and said backlight.   
   
   
       2 . The image display device according to  claim 1 , wherein a focal distance of said lens is shorter than a distance between said lens and said pixels. 
   
   
       3 . The image display device according to  claim 1 , wherein said lens comprises a lenticular lens in which a plurality of cylindrical lenses are so arrayed as to be in parallel with one another in their lengthwise direction. 
   
   
       4 . The image display device according to  claim 1 , wherein said lens comprises a fly-eye lens in which a plurality of convex lenses are arrayed in a matrix shape.