Innovative plasma alignment method in flexible liquid crystal display films

Kang Hung Liu, Chin Yang Lee, Cheng Ta Ho, Horng Long Cheng, Shih Ting Lin, Huang Chin Tang, Chia Wei Kuo, Chi Chang Liao, Han Ping D. Shieh, Wei Yang Chou

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Liquid crystals (LCs) in flexible cell were aligned on polyimide (PI) surface treated by a paperlike plasma beam. The beam had energy of 450 eV and incident angle of 70° with respect to normal flexible indium-zinc oxide-coated substrate. The pretilt angle and anchoring energy of LCs on plasma-aligned PI surface were almost identical to the angle and energy of the rubbing PI. However, optical performance of the plasma-aligned cell was superior to the rubbing cell under various bending conditions. Furthermore, such noncontact alignment technology is suitable for large area and roll-to-roll fabrication of flexible LC films.

Original languageEnglish
Pages (from-to)J132-J135
JournalElectrochemical and Solid-State Letters
Issue number10
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • General Materials Science
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering


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