Abstract: A photo-alignment material useful in liquid crystal alignment films comprises a maleimide-based repeating unit, or a maleimide-based repeating unit and at least one additional repeating unit. The photo-alignment materials of the invention may be used in liquid crystal display devices to improve the electrical and electrooptical properties of the alignment film, and thereby improve the reliability of products using the alignment films.

Abstract: Disclosed is an organic gate insulating film and an organic thin film transistor using the same, in which a photo-alignment group is introduced into an organic insulating polymer, so that an organic active film has superior alignment, thereby increasing mobility. Further, the organic active film has a larger grain size, enhancing transistor characteristics.

Abstract: Disclosed is an organic gate insulating film and an organic thin film transistor using the same, in which a photo-alignment group is introduced into an organic insulating polymer, so that an organic active film has superior alignment, thereby increasing mobility. Further, the organic active film has a larger grain size, enhancing transistor characteristics.

Abstract: A photo-alignment material useful in liquid crystal alignment films comprises a maleimide-based repeating unit, or a maleimide-based repeating unit and at least one additional repeating unit. The photo-alignment materials of the invention may be used in liquid crystal display devices to improve the electrical and electrooptical properties of the alignment film, and thereby improve the reliability of products using the alignment films.

Abstract: A photo-alignment material useful in liquid crystal alignment films comprises a maleimide-based repeating unit and at least one additional repeating unit, or a maleimide-based repeating unit and at least two additional repeating units. The photo-alignment materials have freely-controllable pretilt angles, and they provide a display quality equivalent or superior to alignment materials made using the conventional rubbing process.

Abstract: The present invention relates to a cinnamatic photo-polymerization type homopolymeric or copolymeric alignment material, in which polymaleimide is singly used as the main chain, or is combined with styrene, hydroxystyrene or acrylonitrile to form a copolymer so as to be used as the main chain, or polyimide is used as the main chain.

Abstract: Cinnamate-containing photopolymers for use in liquid crystal display are provided. The photopolymers can be homopolymers or copolymers, and have improved thermostability and photoelectric characteristics. The photopolymers contain a substituted benzene ring and have a weight average molecular weight of from about 1000 to about 100,000. Methods for forming LCD cells using the cinnamate-containing homopolymers and copolymers are also provided.

Abstract: The present invention provides novel photopolymers for use in liquid crystal display. The photopolymers are cinnamate-containing photopolymers wherein a mesogen, preferably containing a benzene ring, is introduced between a polyvinyl main chain and a cinnamate group, and also wherein the cinnamate group can be substituted with a cyanide group, an alkyl group, a halogen atom or a fluorocarbonyl group. The cinnamate-containing photopolymers have improved stability and photoelectric properties, and improved pre-tilt angle. The photopolymers can be used to form an orientation film for an LCD in a non-rubbing process, and can be used alone or with a cross linking agent.