Electro‐optic effect of phase‐transition liquid crystals separated by polymer network

Hideo Fujikake, Kuniharu Takizawa, Hiroshi Kikuchi

Research output: Contribution to journalArticlepeer-review

Abstract

A new light‐scattering liquid crystal device of chiral nematic liquid crystal dispersed in three‐dimensional polymer network is proposed. The liquid‐crystal device has been fabricated, and its fundamental electrooptic properties have been examined. Each cholesteric domain of focal conic texture, whose helical axis orients randomly but is fixed by a polymer wall, exhibits phase transition to nematic phase by an applied voltage. Therefore, the device has a high‐speed response (less than 500 μ ms) and high contrast ratio (100 : 1). Also, the device can perform as a stable gray‐scale memory because of its multidomain structure. It has an advantage of self‐supported structure, ease of fabrication of a large‐size device, and no requirement of sealing gap; thus, it is applicable for a full‐color projection display and a high‐speed, large‐area light shutter.

Original languageEnglish
Pages (from-to)90-98
Number of pages9
JournalElectronics and Communications in Japan (Part II: Electronics)
Volume76
Issue number12
DOIs
Publication statusPublished - 1993
Externally publishedYes

Keywords

  • Polymer‐dispersed liquid crystal
  • chiral nematic liquid crystal
  • cholesteric‐nematic phase transition
  • polymer network

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Electro‐optic effect of phase‐transition liquid crystals separated by polymer network'. Together they form a unique fingerprint.

Cite this