A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic...http://www.google.com.au/patents/US7732024?utm_source=gb-gplus-sharePatent US7732024 - Homeotropic alignment liquid crystal film, optical film comprising the same, and image display device