Image display device and portable terminal device

• US 20080218867A1
• Filed: 02/20/2008
• Published: 09/11/2008
• Est. Priority Date: 06/30/2004
• Status: Abandoned Application

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Ikeda, Naoyasu, Uehara, Shin-Ichi, Takanashi, Nobuaki
• Application Number:
  US12/071,340
• Publication Number:
  US 20080218867A1
• Time in Patent Office: Days
• US Class Current: 359/619
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02F 1/133526 Lenses, e.g. microlenses or Fresnel lenses
• CPC Class Codes: H04M 1/0214 Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235

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.

Claims

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.