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You are in : About us > Research and Development > LCOS

LCOS: an innovation
in display technology

About 75% of digital, high-definition televisions sold in the USA in 2000 were big-screen TVs, combining traditional cathode ray tube (CRT) technology with the "rear projection" technique. In rear projection, an image is created in three CRTs, respectively red, green and blue, inside the TV set, and projected toward the rear. The three colour images then bounce off a mirror and are reflected forwards to form a converged picture on the back side of a transparent screen. The advantages? Big screen, high resolution, and good sound quality. The drawbacks? These conventional projection TVs cost quite a lot of money, take up quite a lot of space and require quite a lot of muscle to move them around.

Thanks to its innovative LCOS technology, Thomson is now offering a high-performance alternative. RCA's L50000 set, due for retail from Summer 2001, offers top picture quality on a flat 16x9 screen at a competitive price, but weighs less than a hundred pounds and is no deeper than a small tabletop TV. LCOS, or Liquid Crystal On Silicon, represents a strategic decision on Thomson's part to develop a new line of display products offering progressive-scan digital high definition.


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  • Challenging the CRT
  • Microdisplays the size of a thumbnail
  • Sharper picture, lighter weight
  • A bright future for LCOS

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  • RCA LCOS HDTV 16 x 9 widescreen monitor