A blue-phase liquid crystal lens array based on dual square ring-patterned electrodes

ABSTRACT

We propose a blue-phase liquid crystal (BPLC) lens array based on dual square ring-patterned electrodes. A high dielectric constant layer is used to smoothen out the horizontal electric field and reduce the operating voltage. By creating a potential difference between the dual square ring-patterned electrodes, gradient electric fields are generated and lens-like phase profile is obtained. Besides, the focal length of the BPLC lens is adjustable with voltage changes and all simulation results indicate that the BPLC lens array is polarisation-insensitive.

Graphical Abstract

KEYWORDS:

• Blue phase
• liquid crystal
• lens array
• polarisation-insensitive

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [61535007] and the Equipment Research Program in Advance of China [JZX2017-1570/Y464].