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Expanded viewing-angle reflection from diffuse holographic-polymer dispersed liquid crystal films



A switchable diffuse reflective film with high color purity is demonstrated using holographic-polymer dispersed liquid crystals (HPDLC). By recording a diffuse hologram directly into the LC/polymer film, the diffuse mode HPDLC exhibit viewing angles an order of magnitude larger than the conventional mode. A simple phenomenological model based on coupled-wave theory is developed to describe our observations. © 2000 American Institute of Physics.



Applied Physics LettersAmerican Institute of Physics

Published: Dec 25, 2000

Keywords: liquid crystal displays; polymer dispersed liquid crystals; colour displays; light reflection; holography; electro-optical switches; polymer films; liquid films; drops

DOI: 10.1063/1.1335544

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