Improvement of Electro-Optic Characteristics for Holographic Polymer Dispersed Liquid Crystal (H-PDLC)

Abstract

A holographic polymer dispersed liquid crystal (H-PDLC) has been expected as one of the potential candidates of a high brightness full color reflective display because it's unnecessary to use polarizers and color filter. However, driving voltage of HPDLC is too high to apply the practical use. Therefore, we have mainly focused on how to reduce the driving voltage of H-PDLC with high reflectance enough for practical application. In our study, manufacturing conditions and the influence of material such as liquid crystals, monomers and photo initiators were examined. As the result, we can obtain H-PDLC having low driving voltage (2Vrms/μm) and high reflectance (about 22%).