Analysis of Electro-Optic Properties of a Polymer Network Liquid Crystal Display with Crossed Polarizers

Abstract

An active-matrix polymer network liquid crystal display (AMPNLCD) of 1.79″ QCIF(176 × 144) was fabricated. The operating mode of normally black was reversed to normally white by using crossed polarizers. The contrast ratio, as a result, was drastically increased, which was comparable to a conventional liquid crystal display. The response time at a typical driving voltage, 2.8 V, was also fast enough to play still image smooth. The electro-optic properties of AMPNLCD with crossed polarizers were evaluated and discussed.

Keywords:

• crossed polarizers
• image inversion
• PDLC
• polymer network liquid crystal
• wide viewing angle

Acknowledgments

This work was supported by Korean Ministry of Science and Technology (MOST) research fund.