| 摘要 |
<p>According to one embodiment, in a three-dimensional image display apparatus, a light-ray control unit is so arranged as to face a display unit. The light-ray control unit includes a plurality of optical apertures each having an extending direction. The optical apertures are substantially linearly extended along the extending direction and are substantially arranged in a direction normal to the extending direction. The extending direction is so inclined with respect to the second direction as to have an inclination angle which is selected within one of a first range from arctan(5+⅕) to arctan(5+⅖), a second range from arctan(5+⅗) to arctan(5+⅘), and a third range from arctan(6+⅕) to arctan(6+⅖).</p> |
