An improved magneto-optical disc memory recording and reading system with a ferroelectric liquid crystal (FLC) is shown. As FLC a chiral smectic liquid crystal is employed to exhibit a bistability between a pair of substrates which have easy polarization axes normal to each other. Informations to be...http://www.google.com.tw/patents/US4853911?utm_source=gb-gplus-share專利 US4853911 - Optical disc memory system utilizing a smectic chiral liquid crystal
