Low aberration and fast response liquid crystal lens with optically compensated bend structures

Yu Kai Hong, Jui Wen Pan*, Shie-Chang Jeng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A hole-patterned electrode (HPE) liquid crystal (LC) lens with positive (0 D – 0.7 D) and negative focal lengths (0 D - −1.1 D) is demonstrated. The lens uses an optically compensated bend (OCB) cell filled with dual-frequency LC materials and alignment films with an intermediate pretilt angle. Better reduction in tilt and coma aberration can be achieved using this simple one-layer structure with its symmetric LC orientation in an OCB cell than can be obtained with a complicated two-layer HPE LC lens. The use of dual-frequency switching together with the reduction of the backflow effect in the OCB cell also improves the response by about 7 times compared with the conventional HPE LC lens.

Original languageEnglish
Article number109188
JournalOptics and Laser Technology
Volume161
DOIs
StatePublished - Jun 2023

Keywords

  • Dual-frequency liquid crystal
  • Fast response
  • Liquid crystal lens
  • Low aberration
  • Optically compensated bend

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