A Toshiba 21-inch 3D display uses parallax barrier technology with 9 pairs of images, to cover a viewing angle of 30 degrees.
The description of a Toshiba 21-inch 3D display highlights its use of parallax barrier technology, which creates a 3D effect by displaying two slightly different images to each eye. The viewing angle of 30 degrees indicates the extent to which the viewer can see the 3D effect.