Television display composed of a rear projection screen, a cathode ray tube array with red, green, and blue tubes, and a series of mirrors to reflect the projected images onto the screen. With the rear projection screen, light hits the screen from behind and shines outward instead of hitting it from the front and bouncing back into the room. he CRTs in a rear projection television are located in the base near the bottom of the television box. The three CRTs combine their light to form a complete, full-color image (red, green and blue are the additive primaries that mix together to form other colors in the color spectrum). The light from the three CRTs is focused to come together and reflected off a series of mirrors before hitting the screen from the rear (thus a rear projection television). rojectors require their light to travel a certain distance to achieve proper focus and convergence. The mirrors in a rear projection television extend the light’s path to the proper distance. The light then hits the back of the rear projection screen. The light forms images on the screen and the screen lets the images shine forth to the viewers. ost rear projection televisions are 40 inches to 80 inches in diagonal measurement. The majority of these video displays sit on the floor and feature a fairly large and heavy cabinet, however, there are a few smaller models that are designed to sit on a large table or stand. Most rear projection televisions contain at least one tuner and many also feature picture-in-picture and other enhanced features. Rear projection displays are the most common form of projection displays thanks to their ease of set-up and low cost compared to most front projection systems.