Stable Photopatterned Cholesteric Layers Made by Photoisomerization and Subsequent Photopolymerization for Use as Color Filters in Liquid-Crystal Displays

Very stable cholesteric layers with patterned reflection colors are made by coating a monomeric cholesteric mixture on a substrate followed by photoisomerization in air to tune the reflection color and photopolymerization to stabilize the layer. The layers can be used as color filters in liquid‐crys...

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Published in:Advanced materials (Weinheim) 2003-09, Vol.15 (17), p.1420-1425
Main Authors: Lub, J., van de Witte, P., Doornkamp, C., Vogels, J.P.A., Wegh, R.T.
Format: Article
Language:English
Subjects:
cholesteric
Liquid crystals
Liquid crystals, cholesteric
Liquid-crystal displays
Photoisomerization
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creator Lub, J.
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Wegh, R.T.
description Very stable cholesteric layers with patterned reflection colors are made by coating a monomeric cholesteric mixture on a substrate followed by photoisomerization in air to tune the reflection color and photopolymerization to stabilize the layer. The layers can be used as color filters in liquid‐crystal displays (see Figure). The photopolymerization is performed in N2, resulting in rapid crosslinking, preventing unwanted additional color changes.
doi_str_mv 10.1002/adma.200305125
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source Wiley-Blackwell Read & Publish Collection
subjects cholesteric
Liquid crystals
Liquid crystals, cholesteric
Liquid-crystal displays
Photoisomerization
title Stable Photopatterned Cholesteric Layers Made by Photoisomerization and Subsequent Photopolymerization for Use as Color Filters in Liquid-Crystal Displays
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