Imagine you and your friends could play multiplayer "Halo" without the screen split into quarters. Or that you could watch the World Cup while your kids watch "Dora the Explorer" -- on the same television screen. And all in 3D.
That's what a small team at Microsoft's Applied Sciences Lab is doing. Their new "wedge" optical technology makes it possible for screens to display different images to different people at the same time, show three-dimensional images without the need for 3D glasses, detect things that are placed on the screen, and respond to touch and proximity.