Giant flexoelectro-optic effect with bimesogen in vertical standing helix

Vinay Joshi*, Kai Han Chang, Andrii Varanytsia, Daniel A. Paterson, John M.D. Storey, Corrie T. Imrie, Liang-Chy Chien

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


We demonstrate a giant flexoelectro-optic response characterized by an out-of-plane helical axis rotation of 53° in polymer-stabilized cholesteric doped with bimesogen. The presented electro-optic device measures a large flexoelastic ratio (e/K) of 2.758 CN−1 m−1 with a contrast ratio of 500:1 and response time of 0.43 ms.

Original languageEnglish
Article numberP‐151
Pages (from-to)1732-1733
Number of pages2
JournalDigest of Technical Papers - SID International Symposium
Issue number1
Early online date30 May 2018
Publication statusPublished - May 2018
EventSID Symposium, Seminar, and Exhibition 2018, Display Week 2018 - Los Angeles, United States
Duration: 20 May 201825 May 2018


  • Cholesteric Liquid Crystals
  • Fast-switching Displays
  • Flexoelectric
  • LCDs
  • Vertical Standing Helix


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