Periodic Electro-Optical Characteristics of PDLC Film Dri
Polymer-dispersed liquid crystal (PDLC) is a composite material consisting of LC droplets randomly dispersed into an isotropic polymer matrix and represents a significant new class of electro-optical materials [1,2,3,4]. The electro-optical properties of PDLCs are dependent on the electrically controlled light scattering from the dispersed LC droplets. An alternating current (AC) voltage (frequency range of 101–103 Hz) is typically used to prevent conductivity effects and typically applied to voltages from 20 to 100 Vrms to keep the devices transparent [5,6]. LC droplets in PDLCs can respond to an applied electrical field, aligning to maximize the dielectric constant. For LC with positive dielectric anisotropy,
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