Using a Polarization glasses one at a time, using a technique of doubles with different visibility make glasses on both sides see the images that appear on the screen in different images at the same time.
Using Polarization glasses Using the overlay field of vision is not the same on both sides, making glasses to see the images that appear on each screen images.
The use of eyeglasses Polarization use techniques of visible image stacking channels different makes glasses on both sides to see images that appear on the screen in different images simultaneously.