MIT Develops a Brighter Glasses-Free 3D

[Photo: MIT Media Lab]
Glasses-free 3D technology seems to be the only way 3D could gain mass appeal, but current parallax barriers used in glasses-free 3D HDTVs and portable devices degrade 3D image quality. But engineers at MIT’s Media Lab might have a better solution with their HR3D display by using an adaptive barrier.

The HR3D display still uses the traditional dual-stacked LCDs employed for glasses-free 3D--two Viewsonic VX2265wm 120Hz LCD panels to be specific--but their Content Adaptive Parallax Barrier computes the best pattern to display. This allows more light to project from the screen. On the other hand, a typical parallax barrier is a pinhole array that reduces the brightness of an image, lowers the pixel quality, and destroys any viewing angles other than viewing dead-on.

HR3D’s engineers say that the display yields an image that is three to five times brighter that previous glasses-free 3D screens, and retains a higher frame-rate than existing parallax barrier displays. For now, we really just want a better 3D HDTV we can actually share in a living room--and a 3DS that doesn’t make us feel cross-eyed...

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