Laminated Switchable PDLC Glass in sustainable buildings: Laminated Switchable Polymer Dispersed Liquid Crystal (PDLC) Glass is an innovative opto-electrical laminated glass product used in sustainable buildings to control light and privacy. 

• Composition: It typically consists of two layers of toughened glass with a PDLC film and other composite materials laminated in the middle to form a sandwich-like structure. 
• Functionality: When an electrical voltage is applied, the liquid crystals align, making the glass transparent. When the power is off, they are randomly oriented, scattering light and making the glass opaque, thus providing instant privacy. 
• Sustainability: This type of smart glass contributes to sustainable building design by offering dynamic control over solar heat gain and daylighting, which can significantly reduce the energy demand for heating and air conditioning in large glass buildings. It can also eliminate the need for blinds or curtains, optimizing indoor comfort and views.