This might be the display you are looking for. The MIT media lab just published a demonstration of a new display technology that will read your hand gestures in order to manipulate images on the screen. While it’s not *technically* the Force, it’s still pretty cool.
The new display uses something called a BiDi (short for bi-directional display interface) that reads your gestures to allow you to control objects displayed on the screen. The display has optical sensors which track the location of your hand, and can tell when you move or flick your fingers or whatever.
There’s a real description in the video. Better to watch that than try to make sense of my confused scribblings.