Open AccessDynamic control of colorful reflection toward practical cholesteric liquid crystal displays
Author(s) -
Y. Inoue,
Hiroshi Moritake
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.023027
Subject(s) - deformation (meteorology) , reflection (computer programming) , optics , cholesteric liquid crystal , materials science , liquid crystal , liquid crystal display , scanning electron microscope , transient (computer programming) , total internal reflection , optoelectronics , physics , composite material , computer science , programming language , operating system
We investigated the possibility of practical applications using cholesteric liquid crystals (ChLCs) with Helfrich deformation, which causes the undulation of the helical structure. Usually, the Helfrich deformation is very unstable and can be obtained only in the transient state for a short time (< 10 s) under continuous field application. Here, we found that a ChLC polymerized with spatial pattern distribution exhibited high durability of the Helfrich deformation. Furthermore, we revealed molecular alignment of the Helfrich deformation by scanning electron microscope. Finally, we fabricated a switching device embedded with color-tunable reflection pixels to exhibit potential of reflective display application.