Title :
Cholesteric Liquid Crystal Display With Wide Viewing Angle Based on Multi-Domain Phase-Separated Composite Films
Author :
Lin, Yi-Ting ; Lin, Tsung-Hsien
Author_Institution :
Dept. of Photonics, Nation al Sun Yat-Sen Univ., Kaohsiung, Taiwan
fDate :
7/1/2011 12:00:00 AM
Abstract :
A reflective cholesterol liquid crystal (CLC) display with a wide viewing angle is demonstrated using the phase-separated composite film (PSCOF) method. The PSCOF-based CLC is formed by periodic and gradient UV illumination, slow polymerization and phase separation of the LC and prepolymer mixture. The helical axis of CLC is aligned normal to the protrusion of the PSCOF structure, and the multi-domain CLC structure can provides a wide viewing angle and low color shift. The conformation of PSCOF was also verified by AFM and SEM. The multi-domain PSCOF-based CLC display is simple to fabricate and suitable for use in a low-temperature flexible plastic process.
Keywords :
cholesteric liquid crystals; composite materials; liquid crystal displays; plastics; polymerisation; AFM; SEM; cholesteric liquid crystal display; gradient UV illumination; low temperature flexible plastic process; multidomain phase separated composite films; periodic UV illumination; phase separation; prepolymer mixture; reflective cholesterol liquid crystal display; slow polymerization; wide viewing angle; Glass; Image color analysis; Liquid crystal displays; Liquid crystals; Polymers; Substrates; Displays; liquid crystals; polymer films;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2011.2120594
