Liquid crystal alignment on ZnO nanostructure films

Yueh Feng Chung, Mu Zhe Chen, Sheng-Hsiung Yang, Shie-Chang Jeng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The study of liquid crystal (LC) alignment is important for fundamental researches and industrial applications. The tunable pretilt angles of liquid crystal (LC) molecules aligned on the inorganic zinc oxide (ZnO) nanostructure films with controllable surface wettability are demonstrated in this work. The ZnO nanostructure films are deposited on the ITO- glass substrates by the two-steps hydrothermal process, and their wettability can be modified by annealing. Our experimental results show that the pretilt angles of LCs on ZnO nanostructure films can be successfully adjusted over a wide range from ∼90° to ∼0° as the surface energy on the ZnO nanostructure films changes from ∼30 to ∼70 mJ/m. Finally we have applied this technique to fabricate a no-bias optically-compensated bend (OCB) LCD with ZnO nanostructure films annealed at 235 °C.

Original languageEnglish
Title of host publicationEmerging Liquid Crystal Technologies XI
EditorsNelson V. Tabiryan, Hirotsugu Kikuchi, Dick J. Broer, Liang-Chy Chien
ISBN (Electronic)9781510600041
StatePublished - 1 Jan 2016
EventEmerging Liquid Crystal Technologies XI - San Francisco, United States
Duration: 16 Feb 201617 Feb 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceEmerging Liquid Crystal Technologies XI
Country/TerritoryUnited States
CitySan Francisco


  • Annealing
  • Liquid crystal devices
  • Pretilt angles
  • ZnO films


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