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Image display device and portable terminal device

  • US 20060001974A1
  • Filed: 06/29/2005
  • Published: 01/05/2006
  • Est. Priority Date: 06/30/2004
  • Status: Active Grant
First Claim
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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 in a matrix shape;

    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; and

    an illuminating member which is arranged on a back of said display panel and on whose face toward said display panel a plurality of convexes or concaves are formed, wherein;

    a following formula is satisfied regarding the distance V between adjoining convexes or concaves in said illuminating member, where S is the distance between said pixels and said convexes or concaves, f is the focal distance of said lens, and L is the array cycle of said lens;


    V≦



    S/f

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