Rear Projection LCD TV

The least expensive type of large TV is a rear-projection LCD TV. Some projection TVs have three cathode-ray picture tubes (CRTs), which are like smaller versions of the tubes used in conventional sets. The images from those small tubes are projected onto the back of a 40 inch to 60 inch plus screen, giving them the name rear projection TV. Other rear projection TV sets use LCD, digital light processing (DLP), or liquid crystal on silicon (LCoS) technology in place of CRTs. These high tech rear projection TV sets are thinner, lighter, and as a result more expensive than comparable CRT-based sets