Lcd Projection Tvs. The LCD Projection TVs are a new breed of TV technology that delivers a big, bright, high-definition picture from a TV that's dramatically thinner than comparably sized CRT-based projection TVs.

The liquid-crystal display (LCD) has been around for more than 20 years. If you've seen a laptop computer, you're familiar with an LCD flat panel. It uses an array of thin-film transistors (TFT) that power liquid-crystal-filled red, green and blue cells (again, each making up one pixel) in a glass sandwich.

LCD panels have to have a light source to operate. When the transistors supply voltage, the liquid crystals untwist, allowing varying amounts of light to shine through them. As such they're also easily adapted to a projector, where a bright lamp is focused through the LCD chip..

LCD projectors can be very bright and are capable of very accurate colour rendition as well as HDTV resolution, but prices are high.They also have the most trouble producing a true black, because whether in a flat-panel or projector, light always has to pass through the LCD chip. (Unlike a plasma display, the LCD panel doesn't originate light.)