Conisdering that a 3D display is basically a normal display with a 2x refresh rate of 120hz and basically shows you 2 alternating images of 60hz/fps each to create a 3D effect, shouldnt a reguler display running at 60hz be able to display 2 alternate images of 30hz each to create 3D, albeit at 30 frames a second? which anyways is what most movies are shown at?