Abstract
Based on the principle of stressed liquid crystal,re-exposal method is used during the phase separation by UV curing,and vertical stretched force is applied in the second exposure process.The reverse mode electronic controlled switchable glass samples of polymer dispersed negative liquid crystal by stress inducing vertical directional polymerization are prepared.The sample has the properties of reverse mode piezo-optical effect and reverse mode electronic controlled switchable glass.The sample is translucent and the transmittance is nearly 30%.When compress force or electronic field is applied,the sample turns to scattering opaque state and the haze is above 90%.The research on reverse mode electronic controlled switchable glass is a difficult problem in the switchable glass field.Preparing the sample by stressed liquid crystal technique has a certain significance in research and application of liquid crystal electro-optic device.
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