An improved method of operating a display device having a bistable liquid crystal layer disposed in a conductor matrix consisting of rows and columns characterized by applying the various signals as a sequence of elementary pulses and during the addressing of a row, erasing the plurality of the next...http://www.google.com/patents/US4212010?utm_source=gb-gplus-sharePatent US4212010 - Method for the operation of a display device having a bistable liquid crystal layer
