A rear projection screen, or RP, is a large-format video projection system that is frequently installed on news sets.
A semi-translucent screen material is stretched over an open in a set wall. Behind this, a video projector is placed so that the video is projected onto the back of the screen.
The area behind the screen must be kept dark to allow the images on screen to appear a bright as possible. It is also important that the area in front of the screen be carefully lit to avoid washing out the screen images.
RP screens are often placed behind anchors, allowing stations to project animations, city skyline photographs or live feeds onto the screen. Rear projection screens can also be used for standup areas, and are often most effective in this location since they allow instant changes of individually-branded graphics for each segment. In addition, weather forecasts can also be presented in front of RP screens.
Rear projection screens are available in 4:3 and 16:9 aspect ratios. In addition, advanced setups can combine more than one projector with pictures blended together to create a single unified image.