A reflective liquid crystal display device, employing a single polarizing film comprises a liquid crystal element (20) comprised of a twist aligned nematic liquid crystal layer (6) sandwiched between a first substrate (1) thereof, provided with a reflector (7) and first electrodes (3) and a second substrate...http://www.google.es/patents/US6693692?utm_source=gb-gplus-sharePatente US6693692 - Liquid crystal display
