Surface localized polymer aligned liquid crystal lens.

A self-aligned multi-domain liquid-crystal display on polymer gratings in a vertically aligned configuration

Jae-Hong Park Yoonseuk Choi Tae-Young Yoon Chang-Jae Yu Sin-Doo Lee Abstract — We report on a new method of fabricating a vertically aligned multi-domain liquid-crystal display (LCD) using surface-relief gratings. A linear array of surface-relief gratings was produced by using a photosensitive polymer material coated on glass substrates by the illumination of the UV light through a photomask. T...

Control of Morphology and Alignment of Liquid Crystal Droplets in Molecular-Aligned Polymer for Substrate-Free Displays

We have proposed composite films composed of a molecular-aligned polymer and liquid crystal (LC) for substrate-free liquid crystal displays with high-contrast images. We successfully controlled the molecular alignment of the LC and formed molecular-aligned LC droplets in the polymer by controlling the fluidity of the LC/monomer mixture and the curing rate of the monomer. key words: substrate-fr...

Spatial and Orientational Control of Liquid Crystal Alignment Using a Surface Localized Polymer Layer

Voltage-Controllable Liquid Crystals Lens

This study investigates a voltage-controllable liquid crystals lens with a Fresnel zone electrode. When applying a proper voltage on the liquid crystal cell, a Fresnel-zone-distributed electric field is induced to direct liquid crystals aligned in a concentric structure. Owing to the concentrically aligned liquid crystals, a Fresnel lens is formed. We probe the Fresnel liquid crystal lens using...

Liquid-crystal microlens arrays using patterned polymer networks.

A real-time dynamically tunable-focus microlens array made from a polymer-liquid-crystal (LC) composite is demonstrated. The polymer was first patterned in microlens array cavities by lamination, and the LC-monomer mixture was then injected to the molded polymer cavities and finally stabilized by UV light-induced networks. Using this new fabrication method, we demonstrated a lens with a spheric...