Photo-aligning by azo-dyes: Physics and applications

Vladimir Chigrinov*, Hoi Sing Kwok, Hirokazu Takada, Haruyoshi Takatsu

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

102 Citations (Scopus)

Abstract

Liquid crystal photo-alignment using azo-dyes is reviewed. This alignment method is very different from previously reported ones, such as photo-crosslinking, photo degradation and photo-isomerization. It will be shown that this photo-aligning method can provide a controllable pretilt angle and strong anchoring energy of the liquid crystal cell, as well as high thermal and UV stability. The application of this method to the alignment and fabrication of various types of liquid crystal displays is also discussed.

Original languageEnglish
Pages (from-to)1-15
Number of pages15
JournalLiquid Crystals Today
Volume14
Issue number4
DOIs
Publication statusPublished - 2005

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