Patent ID: 8531455

Claim:
A parallax barrier filter of a five-parallax type passing an image of a display in which picture elements are each composed of a combination of red, green, and blue sub-pixels, through a plurality of apertures arranged adjacently in a vertical direction Y and three-dimensionally displaying the image, wherein: an aperture height is 8/7 times as large as a sub-pixel height; and a shape of the apertures and a positional relation of the apertures adjacent in the vertical direction Y are expressed by the following expressions: 2 ·Wsp≦Wt≦ 2.5 ·Wsp,Pt= 5 ·Wsp,Dtr =(5/7)· Wsp, where Wsp is a sub-pixel width, Wt is an aperture width, Pt is a pitch of the plural apertures along a lateral direction, and Dtr is a deviation amount between the apertures adjacent in a vertical direction Y.