Liquid crystal displays allowing high order multiplexing, typically with a multiplexing order N of about 1,000, utilize a thin sheet of a varistor material to provide a high degree of non-linearity in the optical response of the display with respect to the multiplexed driving voltage for each cell of...http://www.google.fr/patents/US4233603?utm_source=gb-gplus-shareBrevet US4233603 - Multiplexed varistor-controlled liquid crystal display
