Fluorinated polymer alignment layers formed at low temperature for plastic-substrate-based liquid crystal devices

H. Sato, H. Fujikake, H. Kikuchi, Y. Iino, M. Kawakita, Y. Tsuchiya

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

In this paper, we describe an alignment layer of chemically and mechanically stable fluorinated polymer for light-weight flexible liquid crystal display devices. Since the fluorinated polymer can be formed on plastic substrates at room temperature, unlike conventional polyimide, thermal distortion of the substrate does not occur. Uniform 70-nm-thick polymer thin films were obtained by spin-coating using a hydrofluoroether solvent. The orientation of the liquid crystal molecules was perpendicular to the rubbing direction of the fluorinated polymer, and the anchoring strength of the rubbed polymer was approximately 10-4 N/m. Twisted nematic liquid crystal devices using plastic substrates coated with the polymer showed good spatial uniformity and a high contrast ratio of more than 100 : 1.

Original languageEnglish
Pages (from-to)L53-L55
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume40
Issue number1 A/B
Publication statusPublished - 2001 Jan 15
Externally publishedYes

Keywords

  • Alignment layer
  • Anchoring strength
  • Flexible display
  • Fluorinated polymer
  • Plastic substrate

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Fluorinated polymer alignment layers formed at low temperature for plastic-substrate-based liquid crystal devices'. Together they form a unique fingerprint.

Cite this