Pros and Cons of Three Different Display Methods For Getting a 3D Image.
Most of the current model TVs create 3D images by rapidly displaying two slightly different images for one frame of animation. Active shutter glasses block the view of the eye that is not supposed to see the image by darkening the lens over that eye. Because each of our eyes see the world from a slightly different perspective our brain is deceived into thinking that the image has depth of field.