In a liquid crystal display unit for use in a liquid crystal projector used in a high-temperature environment, this invention is directed to provide a liquid crystal display unit which prevents deterioration of the display unit and deformation of a polarizer plate due to temperature, and has a dust-proofing...http://www.google.de/patents/US5508830?utm_source=gb-gplus-sharePatent US5508830 - Liquid crystal display unit having an enclosed space between the liquid crystal cell and at least one polarizer
