Liquid crystal alignment on polymer films

Ruibo Lu, Keshu Xu, Sheng'An Xiao, Yongkang Le, Xuewu Zhou, Maiming Wu, Jianhua Gu, Zuhong Lu

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

The rubbed polyimide (PI) and PI LB films were fabricated and treated to align the nematic liquid crystal (LC) 5CB. The rubbed polyimide (PI) films aligned LC cell shows a higher LC pretilt angle than the cell aligned by PI LB films. Atomic force microscope (AFM) observations indicate that the rubbed PI films have a needle-like structure, while PI LB films have a groovy structure. We think that the needle-like structure plays a major role in producing the higher LC pretilt angle.

Original languageEnglish (US)
Pages (from-to)51-62
Number of pages12
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume325
DOIs
StatePublished - 1998

Keywords

  • Alignment
  • Atomic force microscope
  • Liquid crystal
  • Polyimide

ASJC Scopus subject areas

  • Condensed Matter Physics

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