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Flexible area‐color reflective displays based on electric‐field‐induced blueshift in a cholesteric liquid‐crystal film
Author(s) -
Xianyu Haiqing,
Chen KuanMing,
Wu ShinTson
Publication year - 2008
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.2835018
Subject(s) - blueshift , cholesteric liquid crystal , materials science , reflection (computer programming) , optics , dielectric , liquid crystal , texture (cosmology) , optoelectronics , anisotropy , electric field , physics , computer science , photoluminescence , quantum mechanics , artificial intelligence , image (mathematics) , programming language
— An electrically controllable blueshift of the reflection band is observed in a cholesteric liquid crystal with either positive or negative dielectric anisotropy. The change in optical properties is a result of a two‐dimensional periodic undulation of the cholesteric texture, known as Helfrich deformation. This blueshift mechanism was used to demonstrate area‐color reflective displays in a cholesteric cell and a rollable polymeric film.