In the home projector to watch movies, play games, watch the game has become one of the many fashion people preferred form of entertainment, but in the housing area growing today, two, thirty inch TV has been completely unable to bring us more impact visual effect. Selection of rear projection TV or plasma TV, although the screen increases a lot, but at best is no more than 60 inches, and the price is quite expensive. With the projector technology continues to mature, the various functions of home projector is more and more complete, the volume is smaller, more convenient to use, but also from the initial price of several million yuan to the transition now. Therefore, to set up the projector as the core equipment of home theater can not only bring the big picture visual impact 60--150 inch to us, but with a new concept to show us the new trend of entertainment a wonderful.