A liquid crystal display device includes a pair of substrates, a liquid crystal between substrates and alignment layers disposed on the inner surface sides of the substrates. The alignment layer is made from a material including polyamic acid containing a diamine component and polyimide containing a...http://www.google.com.au/patents/US7430033?utm_source=gb-gplus-sharePatent US7430033 - Liquid crystal display device treated by UV irradiation