Technologies of 3D viewing without glasses

Glasses-free 3D TV display

Highly efficient glasses-free 3D TV would be available soon as shown by MIT News release. This research will demonstrate the multiple-perspective, glasses-free 3-D that could be more real without glasses.

Researchers have used many layers of liquid-crystal displays (LCDs) that are usually found in many of the TVs nowadays. This system would work efficiently, if the displays work at a rate of about 360 times a second, or 360 hertz. However, at this time LCD TVs work effectively at 240-hertz refresh rates and it is possible that 360 hertz rate of display would soon be available in the market.

“Holography works, it’s beautiful, nothing can touch its quality,” says Douglas Lanman, a postdoc at the Media Lab and one of the new paper’s co-authors. “The problem, of course, is that holograms don’t move. To make them move, you need to create a hologram in real time, and to do that, you need … little tiny pixels, smaller than anything we can build at large volume at low cost. So the question is, what do we have now? We have LCDs. They’re incredibly mature, and they’re cheap.”

This system is different from the Nintendo 3DS that was introduced last year with the ability to produce glasses-free 3D views. In Nintendo 3DS, the stereoscopic system needs to display only two perspectives on a scene while the researchers working on this system are working on to display hundreds of perspectives to hold a moving viewer. This is a lot of information to display at once.

The MIT display also takes advantage of the ability to project different patterns in different directions, but the chief purpose of the lenses is to widen the viewing angle of the display. With the three-panel version, the 3-D illusion is consistent within a viewing angle of 20 degrees, but with the refractive-lens version, the viewing angle expands to 50 degrees.

Researchers from MIT Media Lab will present this research highlight and demonstration at Siggraph computer-graphics conference this summer.

At the same time, Ultra-D TV will be publicly displayed in Covent Garden Walkabout Bar, London that will show glasses-free 3D views of Olympics.

The manager of the Covent Garden Walkabout Bar, Dal Jones, states that Ultra-D is “1000% better than anything else I have seen in 3D without glasses. I am very pleased and truly excited to be the first UK bar to be able to offer this to our customers.”

Stream TV Networks will also place demonstrations at different high traffic areas in U.S., Europe, Taiwan and China before its availability in market.

Autostereoscopic (glasses-free) 3D helps to convert videos into 3D without glasses in Ultra-D.

“Ultra-D is the first 3D without glasses solution that has been able to eliminate viewing angles and offer the high quality, glasses-free 3D experience we’ve all been waiting for,” says Matt Young for Stream TV Networks. He adds, “Being able to offer this in time for the Olympics just adds to the viewing experience and enjoyment of the games being in London.”

Via: MIT News Office, PR Newswire

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