A4-sized flexible ferroelectric liquid-crystal displays with micro color filters

Hiroto Sato, Hideo Fujikake, Takeshi Murashige, Hiroshi Kikuchi, Taiichiro Kurita, Fumio Sato

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


We demonstrated an A4-paper-sized flexible ferroelectric liquid-crystal (FLC) color displays fabricated by using a new plastic-substrate-based process which was developed for large-sized devices. Finely patterned color filters and ITO electrodes were formed on a plastic substrate by a transfer method to avoid surface roughness and thermal distortion of the substrate, which induce disordering of the FLC molecular alignment. The thickness of an FLC/monomer solution sandwiched by two plastic-film substrates was well controlled over a large area by using flexographic printing and lamination techniques. Molecular-aligned polymer walls and fibers were formed in the FLC by a two-step photopolymerization-induced phase-separation method using UV-light irradiation. A fabricated A4-sized flexible-sheet display for color-segment driving was able to exhibit color images even when it was bent.

Original languageEnglish
Pages (from-to)461-468
Number of pages8
JournalJournal of the Society for Information Display
Issue number6
Publication statusPublished - 2005 Jun


  • A4-sized flexible display
  • Ferroelectric liquid crystal
  • Flexographic printing
  • Micro color filters
  • Polymer
  • Transfer method


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