We have investigated the electro-optical properties of polymer dispersed liquid crystal films obtained by a two step phase separation process. Strong OFF state alignments of the liquid crystal were obtained by the application of an electric field during the photo-polymerization step. This memory effect is not present when the monomer molecules show a low solubility in liquid crystal droplets. The influence of monomer concentration on the OFF state alignment of the liquid crystal has been also discussed.
OFF state alignment in PDLCs by polymerization of monomer additives
NICOLETTA, Fiore Pasquale
;DE FILPO, Giovanni;IEMMA, Francesca;CHIDICHIMO, Giuseppe
2000-01-01
Abstract
We have investigated the electro-optical properties of polymer dispersed liquid crystal films obtained by a two step phase separation process. Strong OFF state alignments of the liquid crystal were obtained by the application of an electric field during the photo-polymerization step. This memory effect is not present when the monomer molecules show a low solubility in liquid crystal droplets. The influence of monomer concentration on the OFF state alignment of the liquid crystal has been also discussed.File in questo prodotto:
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