Open AccessFast fringe-field switching of a liquid crystal cell by two-dimensional confinement with virtual walls
Author(s) -
TaeHoon Choi,
SeungWon Oh,
Youngjin Park,
YunJaie Choi,
TaeHoon Yoon
Publication year - 2016
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/srep27936
Subject(s) - rubbing , electrode , electric field , liquid crystal , materials science , fabrication , switching time , voltage , liquid crystal display , optoelectronics , field (mathematics) , optics , electrical engineering , chemistry , physics , composite material , medicine , alternative medicine , mathematics , pathology , quantum mechanics , pure mathematics , engineering
We report a simple method for reducing the response time of a fringe-field switching liquid crystal cell by using two-dimensional confinement of the liquid crystals. Through both numerical calculations and experiments, we show that the switching speed can be increased by several fold in a fringe-field switching cell by simply using a rubbing angle of zero, which causes virtual walls to be built when an electric field is applied between the interdigitated electrodes and the common electrode, without requiring additional fabrication steps or complicated drive schemes. Furthermore, the devices fabricated with this method exhibit a reduced color shift and excellent dynamic stability, even with a high applied voltage and under external pressure.