A liquid crystal display device for the colored display of information with a reflector and a twisted nematic liquid crystal cell placed between a linear and a selective polarizer is disclosed. The selective polarizer is disposed in front of the twisted nematic liquid crystal cell and the linear polarizer...http://www.google.de/patents/US4025164?utm_source=gb-gplus-sharePatent US4025164 - Liquid crystal display device for colored display of information with a selective polarizer
