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Wireless 3D Liquid crystal shutter glasses


Project TitleWireless 3D Liquid crystal shutter glasses
Track CodeVAL-090
Short Description

The invention is LCS glasses that can be both wireless and battery-less by harvesting the RF signal stream itself.

Tags3D glasses, LCS glasses, Liquid crystal shutter glasses, Home 3D theater
Posted DateApr 24, 2012 10:24 AM


3D Home theater, 3D Computer games


Viewing a 3D movie or playing a 3D game requires that 2 slightly different images be viewed by each eye to perceive the 3rd dimension (stereoscopic viewing). For the foreseeable future, this is done by wearing 3D glasses of which 3 different technologic options are possible: 1) Red/Green or Red/Blue glasses that prohibits full color images that prohibits full color images, 2) polarized glasses which needs simultaneously projecting 2 polarized images, thus requiring 2 projectors and, 3) LCD shutter glasses which alternatively block the view in each eye in synchronization with a single video stream sent twice the usual refresh rate.
As the 2nd approach is used by movie theater, the 3rd approach is the preferred way for home 3D viewing on LCD/LED HDTV television sets (or 3D gaming using computer monitor) with a minimum of 120Hz refresh rate. One drawback in this technology is that the glasses either require a wire for synchronization to the video source, or, if using the wireless approach, a battery to power the circuitry decoding the RF signal stream.

Proposed technology

The invention is LCS glasses that can be both wireless and battery-less by harvesting the RF signal stream itself in order to generate the required power. It is being prototyped using advanced LTCC techniques to reduce cost size and weight of the circuit required in the glasses.

Competitive advantages

No wires or batteries required.
No interruption when viewing 3D movies or playing 3D games.
No waiting for recharging batteries.
Lighter and more ergonomic LCS glasses.

Technology development stage

Concept being validated with LTCC based prototype

Patent status

Inventors: Dr. Ammar Kouki, Jinping Ma

US Patent pending, no. 12/880,233

Technology development status