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LCoS technology can produce much higher resolution images using highly advanced silicon technology than Liquid Crystal Display and Plasma Display technologies, which makes it less Expensive to Implement in such Device s as televisions.

At the 2004 CES , Intel announced plans for the large scale production of inexpensive LCoS chips for use in flat panel displays. These plans were cancelled in October 2004. Sony has made it to market (December 2005) with the Sony-VPL-VW100 or "Ruby" projector, using SXRD, 3 LCoS chips each with a Native Resolution of 1080p (1920 × 1080), with a stated Contrast Ratio of 15,000 using a dynamic iris.

HISTORY AND IMPLEMENTATIONS


LCoS technology has the potential to enable the manufacture of big-screen high-definition televisions with very high picture quality at relatively low cost. LCoS, while conceptually straightforward, can be a difficult technology to master; a number of companies have dropped out of the LCoS business in recent years. Nonetheless, as of June 2006, proprietary methods for mass-producing LCoS developed, and at least four manufacturers now produce LCoS-based rear-projection televisions for the consumer market.

Commercial implementations of LCoS technology include Sony's SXRD (Silicon X-tal Reflective Display), Syntax-Brillian's Gen II LCoS, JVC 's D-ILA (Digital Direct Drive Image Light Amplifier), and MicroDisplay Corporation's Liquid Fidelity. Nearly every company which produces and markets rear-projection televisions uses three-panel LCoS technology, with the exception of MicroDisplay Corporation, which uses a single LCoS panel capable of producing true 1080p resolution with two million pixels on a single chip. Sony and JVC also produce and market front-projection displays that use three LCoS panels. Another provider of third-party LCoS chips is a Novato-based firm, Spatialight. Direct-view LCoS devices such as the single-panel LED-illuminated devices made by Displaytech are also used as electronic viewfinders for digital cameras. These devices are made using ferroelectric liquid crystals, which are inherently faster than other types of liquid crystals.

DISPLAY SYSTEM ARCHITECTURES


There are two broad categories of LCoS displays: three-panel and single-panel. In three-panel designs, there is one display chip per color, and the images are combined optically. In single-panel designs, one display chip shows the red, green, and blue components in succession with the observer's eyes relied upon to combine the color stream. As each color is presented, a color wheel (or an RGB LED array) illuminates the display with only red, green or blue light. If the frequency of the color fields is lower than about 540 Hz, an effect called color breakup is seen, where false colors are briefly perceived when either the image or the observer's eye is in motion. While less expensive, single-panel projectors require higher-speed display elements to process all three colors during a single frame time, and the need to avoid color breakup makes further demands on the speed of the display technology.


Three-panel designs


In a s are needed.
In LCoS devices the light is additionally Polarized and then analyzed; four beam splitters are needed. In most DLP sets a color wheel separates colors from a lamp, using one chip for all three colors; SXRD sets use three separate chips, one for each color.

One-panel designs


There were two single-panel LCoS displays in production. One by Philips , and one by Microdisplay Corporation. MicroDisplay Corp's display products were used in HDTVs produced by Uneed Systems of Korea from 2004–2006, and are currently an integral component of all Liquid Fidelity HDTVs...


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