This invention relates to a guest-host type liquid crystal composition and a color liquid crystal display device in which said composition has been sealed. This invention provides a liquid crystal composition containing a specific anthraquinone dye as a pleochroic dye which, as the guest dye, has a degree...http://www.google.de/patents/US4495083?utm_source=gb-gplus-sharePatent US4495083 - Guest-host type liquid crystal composition and liquid crystal display device using the same