We've all seen 3D glasses pop up here and there, usually bundled with high-end graphics cards and the like, but we haven't really seen 3D flat screens. Although the 3D screen technology is not exactly brand new, it has been improved upon by Sharp's U.K. Labs to include the ability to switch from 2D to 3D at the push of a button. This new technology is aimed at the consumer, with introductory prices not expected to be more than 50 percent greater than convential displays.
...the main challenge was making it possible to switch between the ordinary 2-D mode and 3-D with the push of a button, while providing the same image resolution in the 2-D mode as in a standard display without 3-D capability.More information @ Reuters
The screens can only be seen in 3-D from certain angles and distances... and a "sweet spot indicator" -- a small bar at the lower end of the screen -- appears solid black when the viewer is at an optimum position for 3-D.