At CEATEC 2009, Hitachi demonstrated a 10-inch Full Parallax 3D TV set that displays a three-dimensional picture without special glasses from any angle. If you want to see the scene from above - you have to get up from the sofa.
The scene where the rays of the projectors intersect is separated from the viewer by a complex lens system that provides 3D viewing without distortion at any angle, not only in the horizontal but also in the vertical plane (the scheme of lenses under the lens).
This is a photo from the exhibition booth where TV was shown.
A three-dimensional image with a resolution of 640 x 480 pixels is formed using 16 digital projectors 800 x 600 pixels each (it is precisely because of the parallax that the resolution of the image is reduced).
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After running in technology very soon, such TVs can become a real hit in the mass market.