MIT Brings Glasses-Free 3D TV A Step Closer To Reality

Holograms, which are considered the future of television, are still out of reach when looking at the immediate future. But a new technique presented by #-Link-Snipped-# could bring 3D TVs to homes quicker. This technique makes use of LCDs and was a highlight at this summer’s Siggraph computer-graphics conference.

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While holograms require special hardware to operate upon, LCDs or liquid-crystal displays are current technology and widely available. For LCD screens to produce 3D images, they would require a refresh rate of 360 images per second or 360 hertz. Presently, 240 hertz TVs are available on market, a rather prompt successor to 120 hertz TVs which were launched only a few years back. With technology growing leaps and bounds, such screens may not be far off.

To keep the refresh rate restricted to 360, the Tensor Display uses another LCD screen, though that led to complexities in pattern calculation. The key to the success of this technique lies in the insight that while some aspects change with viewing angle, some do not. This redundancy when exploited by pattern-calculating algorithms helped in enhancing the resolution of the image. For the prototype, the Media Lab Researchers used a Tensor Display with three LCD screens. Further information on the topic can be found at #-Link-Snipped-#. A video demo can be found below.


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