Open AccessFast switching of long-pitch cholesteric liquid crystal device
Author(s) -
Ki-Han Kim,
Dong Han Song,
Zheng-Guo Shen,
Byung Wok Park,
Kyoung-Ho Park,
Joun-Ho Lee,
TaeHoon Yoon
Publication year - 2011
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.19.010174
Subject(s) - conic section , homeotropic alignment , optics , liquid crystal display , liquid crystal , voltage , planar , materials science , state (computer science) , cholesteric liquid crystal , mode (computer interface) , optical switch , optoelectronics , computer science , physics , computer graphics (images) , mathematics , geometry , quantum mechanics , algorithm , operating system
We propose a long-pitch cholesteric liquid crystal (ChLC) device capable of operation in both the dynamic mode and the memory mode. Fast switching between the homeotropic state and the focal conic state allows the display of moving pictures at a low operating voltage. In addition, we can write text messages on the proposed ChLC device by applying an external pressure locally to switch it from the focal conic state to the planar state.