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P.93: Optically Isotropic Polymer Dispersed Liquid Crystal Composite for High Contrast Ratio and Fast Response Time
Author(s) -
Yu Ji Hoon,
Lee Jung Jin,
Lim Young Jin,
Nayek Prasenjit,
Kundu Sudarshan,
Kang Shin Woong,
Lee Seung Hee
Publication year - 2013
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2013.tb06485.x
Subject(s) - materials science , polarizer , liquid crystal , contrast ratio , polymer , optics , isotropy , response time , optoelectronics , composite number , ultrashort pulse , birefringence , composite material , physics , laser , computer graphics (images) , computer science
The optically isotropic polymer dispersed liquid crystal (PDLC) mode has been proposed by confining liquid crystal droplets, with average sizes less than the wavelength of visible light, in polymer network. This state has been achieved via polymerization‐induced phase separation (PIPS) method in pre‐polymer/LC mixture. The in‐plane field driven device shows a complete dark state in voltage ‘off’ under crossed polarizer and excellent white state with induced retardation by Kerr effect in voltage ‘on’ state with an ultrafast response time over a wide temperature range and high contrast ratio.