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http://dx.doi.org/10.4313/JKEM.2010.23.11.891

Electro-Optical Characterization of Polymer Dispersed Liquid Crystals for Various Concentrations of Prepolymer  

Yang, Kee-Jeong (Department of Chemical Engineering, Kwangwoon University)
Yoon, Do-Young (Department of Chemical Engineering, Kwangwoon University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.23, no.11, 2010 , pp. 891-895 More about this Journal
Abstract
Polymer dispersed liquid crystal (PDLC) films were prepared by the phase separation method using the liquid crystal (E7) and prepolymers. This work investigated the electro-optical characteristics of various PDLC films. In order to have good contrast ratio, the polymer refractive index must be adjusted to the ordinary refractive index of the liquid crystal. The driving voltage of PDLC films were mainly affected by elastic deformation. E7-Ebecryl810-IOA-TMPTA-HMPPO system had good threshold voltage and driving voltage and E7-Ebecryl810-EHA-PEGDA-HMPPO system had good contrast ratio.
Keywords
PDLC; Prepolymer; Electo-optical; Droplet size; Flexible display;
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