The ideal 3-D TV watching experience should be effortless. Walk into a room with a functioning 3-D TV, and the 3-D content is visible for all to see, no glasses required. Today’s technology isn’t quite there, but a giant glasses-free 3-D display that Japanese researchers have recently developed brings us one step closer.

Japan’s National Institute of Information and Communications (NICT) and JVC Kenwood teamed up to develop a massive, 200-inch glasses-free 3-D display. They’re claiming it’s the largest auto-stereoscopic full HD 3-D display in the world.

The display’s glasses-free 3-D effect i...