| US 7,532,225 B2 | ||
| Three-dimensional image display device | ||
| Rieko Fukushima, Tokyo (Japan); Tatsuo Saishu, Tokyo (Japan); Kazuki Taira, Tokyo (Japan); and Yuzo Hirayama, Kanagawa (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Sep. 17, 2004, as Appl. No. 10/943,198. | ||
| Claims priority of application No. P. 2003-326288 (JP), filed on Sep. 18, 2003. | ||
| Prior Publication US 2005/0099689 A1, May 12, 2005 | ||
| Int. Cl. G09G 5/02 (2006.01) | ||
| U.S. Cl. 345—696 [359/462] | 24 Claims |
| 1. A three-dimensional image display device comprising:
a display unit including pixels arranged in a form of a matrix, the pixels forming pixel groups configured to display element
images;
a mask including windows corresponding to the pixel groups, wherein:
relative positions of the pixel groups to the windows change cyclically;
vertically adjacent pixel lines or vertically adjacent regions each including a plurality of pixel lines are provided so that
horizontal positions of the pixels relative to the windows are shifted by (h/a) times (in which a is an integer satisfying
a relation 2≤a<6, and h is an integer satisfying a relation 0<h<(a−1)) as large as a horizontal pitch of the pixels;
regions each including a plurality of horizontally adjacent pixel columns are provided so that horizontal positions of the
pixels relative to the windows are shifted by (i/b) times (in which b is an integer satisfying a relation 2≤b<6, and i is
an integer satisfying a relation 0<i<(b−1)) as large as the horizontal pitch of the pixels; and
as a result of repetition executed while positions of the pixels relative to the windows are shifted by (h/a) vertically and
by (i/b) horizontally, the same horizontal positions of the pixels relative to the windows appear cyclically every {(a/h)−1}
pixels vertically and every {(i/b)−1} pixels horizontally.
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