DGIST Scholar: Pixel-isolation liquid crystals formed by polarization-selective UV-curing of a prepolymer containing cinnamate oligomer

Title: Pixel-isolation liquid crystals formed by polarization-selective UV-curing of a prepolymer containing cinnamate oligomer

Citation: Sung, Shi-Joon. (2010-05). Pixel-isolation liquid crystals formed by polarization-selective UV-curing of a prepolymer containing cinnamate oligomer. Optics Express, 18(11), 11737–11745. doi: 10.1364/OE.18.011737

Keywords: ANISOTROPY ; Article ; Chemistry ; Cinnamate Moiety ; Cinnamates ; Cinnamic ACID Derivative ; Crystallization ; Curing ; Data Display ; DISPLAYS ; Electro-Optic Performance ; FILMS ; Information Processing ; Light ; Liquid Crystal ; Liquid Crystal Displays ; Liquid Crystals ; Methodology ; Monomers ; Oligomers ; Photodimerization ; Photoreactions ; Pixels ; Polarization ; Polymer ; Polymer Walls ; Polymers ; Prepolymers ; Radiation Exposure ; Refractometry ; Surface Region ; Ultra-Violet Radiation ; Ultraviolet Rays ; UV-Curing ; UV Exposure

Abstract: A pixel isolated liquid crystal display was fabricated by polarization-selective anisotropic photoreaction of a prepolymer containing a cinnamate oligomer. The cinnamate oligomer was mainly distributed on the surface region of a UV-cured polymer wall. Anisotropic photo-dimerization of cinnamate moiety was achieved by polarized UV exposure. It was found that the polymer walls containing cinnamate dimers formed by polarized UV exposure showed ordered orientation of LC molecules at the boundary of the polymer walls resulting in electro-optic performance improvement. © 2010 Optical Society of America.