Electrooptic Characteristics of a Fringe-Field Driven Hybrid Aligned Nematic Liquid Crystal Cell using a Liquid Crystal with Positive Dielectric Anisotropy

摘要

We have fabricated hybrid aligned nematic liquid crystal (LC) cell driven by a fringe electric field using a LC with positive dielectric anisotropy, which is unlike previous cells using a LC with negative dielectric anisotropy. According to experimental and simulational results, the new device still shows high transmittance, low driving voltage, optimal viewing angle and much improved response time, although the driving field is a fringe electric field that has both horizontal and vertical components.