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Abstract
We investigated the effect of PDLC layer thickness on morphology and electro-optical properties of plastic thermoset PDLC films with two nematic liquid crystal mixtures E7 and TNO623. The PDLC films were prepared on flexible ITO-PET supports by thermal PIPS phase separation method and the uniform film thickness was insured by plastic micro-spacers. We found that the PDLC layer thickness has a profound effect on micro-droplet morphology (dimension, number density and weight fraction) and electro-optical properties (off-state and on-state transmissions, switching voltages and response times).
Acknowledgement
The experimental part of work hs been carried out at industrial R&D laboratories of Specialty Film Devision, Snia Research, Snia BPD (FIAT Group), Pisticci Scalo (MT) Italy during 1993-2000 period.