Title :
Enhancing Birefringence by Doping Fluorinated Phenyltolanes
Author :
Gauza, Sebastian ; Zhao, Yang ; Le Cor, Tatiana ; Wu, Shin-Tson ; Dziaduszek, Jerzy ; Sasnouski, Genadz ; Dabrowski, Roman ; Chien, Liang-Chy
Author_Institution :
Coll. of Opt. & Photonics, CREOL, Orlando, FL
Abstract :
We have designed, synthesized, and evaluated the physical properties of some high birefringence (Deltan) isothiocyanato phenyltolane and quaterphenyl liquid crystals. These compounds exhibit Deltan~0.48-0.52 at room temperature and wavelength lambda=633 nm. Laterally substituted short alkyl chains and fluorine atom eliminate smectic phase and lower the melting temperature. The moderate melting temperature and very high clearing temperature make those compounds attractive for eutectic mixture formulation. These compounds can be used as dopants for color-sequential liquid crystal displays or eutectic mixtures for laser beam steering
Keywords :
birefringence; eutectic structure; liquid crystals; melting point; birefringence; color-sequential liquid crystal displays; eutectic mixture formulation; fluorinated phenyltolanes; isothio-cyanato phenyltolane; laser beam steering; quaterphenyl liquid crystals; Beam steering; Birefringence; Delay; Doping; Liquid crystal displays; Liquid crystals; Optical arrays; Optical filters; Phased arrays; Temperature; Eutectic mixtures; high birefringence; liquid crystals; phenyltolane isothiocyanates; quaterphenyl isothiocyanates;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2006.885160
