A rear projection screen for use in a rear projection image display device comprises one or more sheet members through which light is sequentially transmitted from the side of a plane of incidence of the screen, the last sheet member comprising a transparent material as a base thereof, and a light diffusing...http://www.google.com/patents/US5066099?utm_source=gb-gplus-sharePatent US5066099 - Rear projection screen and method of producing the same
