Flexible grayscale ferroelectric liquid crystal device containing polymer walls and networks

Hiroto Sato, Hideo Fujikake, Yoshiki Iino, Masahiro Kawakita, Hiroshi Kikuchi

Research output: Contribution to journalArticlepeer-review

113 Citations (Scopus)

Abstract

We proposed a new flexible ferroelectric liquid crystal (FLC) device containing polymer walls and networks between plastic film substrates. The solution of FLC and monomer sandwiched between the substrates was irradiated with ultraviolet (UV) light through a photomask to form the polymer walls. Polymer walls without optical anisotropy were formed from an isotropic-phase solution to prevent light leakage through the polymer walls under crossed polarizers. Subsequently, uniform UV light was irradiated without a photomask on the solution containing the remaining monomer, and then polymer networks were formed on all except the polymer wall areas. The fabricated FLC device enabled grayscale display operation in the areas with the polymer networks. Even when the device was bent or cut, the device maintained spatial uniformity of light modulation because the polymer structures formed by the above two-step UV irradiation method maintained a constant composite film thickness.

Original languageEnglish
Pages (from-to)5302-5306
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume41
Issue number8
DOIs
Publication statusPublished - 2002 Aug
Externally publishedYes

Keywords

  • Ferroelectric liquid crystal
  • Flexible display
  • Grayscale capability
  • Plastic film substrates
  • Polymer network
  • Polymer wall

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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