Optical Transmittance Change using Anisotropic Dye Guest Molecules in Liquid Crystal Host
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Optical transmittance control attracts growing research interests for display in terms of transparent display and also increasing transparent environments demands in various applications in such as smart windows, eyewear, and vehicle applications. In these transparent environment applications, optical transmitting light control with maintaining optically transparency control with maintaining transparent visibility is highly desired. In contrast to conventional optical transmittance light control using polymer-dispersed liquid crystal (PDLC), which has a strong optical scattering haze effect, dimming control of optical transparency with optical visibility was approached in this study by introducing optically anisotropic absorption dye as guest molecules in electrically controllable dielectric anisotropic molecules of liquid crystal host in helical molecular conditions.