Disclosed is a ferroelectric liquid crystal display projector employing a fluorescent screen, including a light source emitting light of a predetermined wavelength; a first condensing lens for converting the light radiated from the light source into beams; a polarizing beam splitter for selecting a predetermined...http://www.google.es/patents/US5957560?utm_source=gb-gplus-sharePatente US5957560 - Light shutter projector with a fluorescent screen
