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(Liquid Crystal on Silicon) A technology used to make microdisplays for rear-projection TVs and head-mounted displays (HMDs). Each LCoS chip hosts a grayscale LCD shutter sandwiched between a cover glass and a mirror. The bottom of the cover glass is coated with indium tin oxide that holds a charge. When combined with the charges at the x-y location on the chip's matrix, it causes the liquid crystals to modulate the light for that pixel.

A Mirror Reflects Light Back
Typically used in sets of three (one each for red, green and blue), light is beamed onto the LCoS chip. For the pixels modulated to allow light to pass through, the light hits a mirror and is reflected back to a color filter. The output of the three color filters is combined and magnified to the size of the screen.

Silicon X-tal Reflective Display (SXRD) and Direct Drive Image Light Amplifier (D-ILA and HD-ILA) are proprietary LCoS technologies from Sony and JVC respectively. See rear-projection TV and head mounted display.

Liquid Crystal Microdisplays
LCoS uses LCD panels similar to LCD-based units, except that light is reflected back from a mirror behind the panel to color filters before heading to the lenses.

LCoS Chips from Aurora Systems
Also known as "imagers" and "spatial light modulators," LCoS microdisplays are typically less than an inch square, and their pixel pitch is in the 8-20 micron range.These chips have resolutions from 1024x768 to 1280x768. (Image courtesy of Aurora Systems, Inc.)
References in periodicals archive ?
The all new VPL-GTZ1's imaging technology combines Sony's proven 4K SXRD with a laser phosphor light source.
The SRX-R515P offers true 4K quality from the integrated media block through the lens to the cinema screen, and features an improved SXRD optical engine, 8,000:1 contrast ratio, 15,000 lumens brightness, easy-on-the-eye Sony 3D and high frame rate capabilities.
Sony s newest professional 4K SXRD projector delivers the highest brightness of any Sony projector at 23,000 lumens.
The Sony HD projectors include a Smear Reduction System by HFR SXRD (Motion flow), 12,000:1 (native) contrast ratio, 60,000:1 (Auto-iris function), 800 lumens brightness, and a Professional Cooling System among the salient features.
Imaging power of the GTZ1 is supplied by Sony s proven 4K SXRD through a laser phosphor light source that produces superb picture quality with a colour brightness of 2,000 lumens.
The SXRD projector s 4K resolution is derived from its 4096 by 2160 pixel matrix, providing more than 8.
The VPL-HW40ES delivers the high quality, immersive images of a big screen cinema experience into the home using the same SXRD panel technology featured in Sony s high-end digital cinema projectors, but at a fraction of the price.
Key features of the Sony GH10 projector include a Smear Reduction System by HFR SXRD (Motionflow), 12,000:1 (native) contrast ratio, 60,000:1 (Auto-iris function), 800 lumens brightness and a Professional Cooling System.
Offering true 4K quality from the integrated media block to the lens, the SRX-R515P projection system features an advanced SXRD (Silicon X-tal Reflective Display) optical engine, high contrast ratio of 8000:1, 15,000 lumens brightness and easy-on-the-eye Sony 3D and High Frame Rate (HFR) capabilities of 48 and 60 frames per second.
VDC Display Systems (VDC DS), a wholly owned subsidiary of Video Display Corporation (NASDAQ: VIDE), announced today it has selected the SXRD QXGA LCOS panel from Sony Micro Device Group as their primary projection panel to be utilized in the new VDC DS QXGA SIM[TM] projection system.
Sony today announced its new SRX-T615 4K digital projector that is equipped with the original super-precise 4K SXRD (Silicon X-tal Reflective Display) and is capable of extremely high picture quality.
The March 25 game against the Los Angeles Clippers from the American Airlines Center will be beamed across town via satellite into Dallas Mavericks owner Mark Cuban's Magnolia Theatre in Dallas' West Village where an invitation-only audience will watch unforgettable images through special 3D glasses using Sony's SXRD 3D Projection System on an 18x42-foot screen, making it feel as if you're sitting courtside.