Refractive-index matching between liquid crystals and photopolymers

Jun Li*, Greg Baird, Yi-Hsin Lin, Hongwen Ren, Shin Tson Wu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

71 Scopus citations

Abstract

Refractive indices of two photocurable polymers, NOA65 and NOA81 (Norland Optical Adhesive), and two series of Merck liquid crystals, E-series (E44, E48, and E7) and BL-series (BL038, BL003 and BL006), and two UCF high-birefringence liquid-crystal mixtures were measured using an Abbe refractometer in the visible spectral region and 15-55°C temperature range. Some liquid crystals have excellent index matching with NOA65 in the red, while some fit better in the blue spectral region. To validate this index-matching property found in the material level, we prepared some polymer-dispersed liquid-crystal devices. Good correlations between material and device performances are obtained.

Original languageEnglish
Pages (from-to)1017-1026
Number of pages10
JournalJournal of the Society for Information Display
Volume13
Issue number12
DOIs
StatePublished - 1 Dec 2005

Keywords

  • Liquid crystals
  • Norland polymers
  • Polymer-dispersed liquid crystals
  • Refractive index

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