A Polarization-independent Blue Phase Liquid Crystal Lens Array with Multi-electrode

摘要

A polarization-independent blue-phase liquid crystal lens array using multi-electrodes is proposed. A high dielectric constant layer helps to smoothen out the horizontal electric field and reduce the operating voltage. With multi-electrodes and a planar top electrode, the gradient electric fields are generated, and the lens-like phase profile is obtained. When the applied voltage is changed, the focal length of the lens can be tuned from ∞ to 6.7 mm. Besides, the simulation results show that the lens is insensitive to polarization while keeping parabolic-like profile.