(Not So) Simple "3D" Display

This method allows a window-like illusion that works for multiple viewers at different vantage points (near, far, left, right).

For every pixel, have a very small projector facing outward. The screen is literally a wall of projectors. Of course, each individual projector must stream footage at an incrementally different angle.

Basically, what your eye receives is a little bit of light from each projected image. Since they are all slightly different, any position will have a unique perspective. If you were to stand to the side of the screen, you'd see parts of the image that are hidden from viewers directly in front of it. This method also creates a subtle difference between your left and right eye, the most important part of 3D.

So far, the smallest video projectors are palm-sized, which means that one of these screens will probably need to be imax-sized (doable for movie theater use). It will also be very expensive (still doable, but not many will be made until technology improves and prices go down, I'm looking at you, nano-materials people).

The images will be computer generated almost always. Real footage could be used, but you would need a wall of cameras if you want to capture the same affect.

The major design issue is to make sure each projector's image is at the correct angle.

Where this may all fall apart is focusing the image, as a near perfectly-clear image is needed. Since the screen will look like a real window, the audiences own eyes will do the focusing, not the camera.

I leave the rest to all of you, my friends.