Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.371, 443-446, 2001
Application of photo-alignment technique through the modification of the polyimide surface with chalcone derivatives to vertically aligned LCD
The photo-alignment with the linear-polarized UV (LP-UV) light was applied to the surface modified polyimide film with chalcone derivatives for the vertical alignment of liquid crystal molecules. The LP-UV light irradiation caused either dimerization or isomerization of chalcone derivatives. The long alkyl-chains attached on the chalcone derivatives were aligned homeotropically and so are LC-molecules.