Reflective display based on biphotonic effect-induced phase transition in dye-doped cholesteric liquid crystals

Andy Y.G. Fuh, San Yi Huang, Yi Shin Chen, Hung Chang Jau, Ming Shian Li, Jui Hsiang Liu, Po Chih Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work studies the biphotonic effect in samples that are cholesteric liquid crystals (CLCs) doped with azo-C5. The experimental results show that the photo-isomerization of azo-C5 not only changes the clearing point of the sample, but also shifts the reflection band that is associated with the planar texture. Additionally, azo dye-doped CLCs (DDCLCs) have bi-stable or tri-stable states, as determined by the ambient temperature. Photo-switching between these bi-stable/tristable states is systematically studied. The result indicates that photo-addressing one of these states (planar, focal conic, and isotropic states) using a low- or high-intensity Ar+ laser beam is feasible. The results thus obtained are used to fabricate a photo-rewritable DDCLC display.

Original languageEnglish
Title of host publicationEmerging Liquid Crystal Technologies V
DOIs
Publication statusPublished - 2010
EventEmerging Liquid Crystal Technologies V - San Francisco, CA, United States
Duration: 2010 Jan 252010 Jan 27

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7618
ISSN (Print)0277-786X

Other

OtherEmerging Liquid Crystal Technologies V
Country/TerritoryUnited States
CitySan Francisco, CA
Period10-01-2510-01-27

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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