RS PDLC smart glass can freely control the transparency of glass by remote control,mobile phone APP and other methods. It can also isolate 98% ultraviolet light, selectively isolate 15%-80% infrared light, and freely control the influence of outdoor temperature on indoor. Sound insulation is 3 times higher than that of insulating glass,and can effectively prevent outdoor intrusion. In addition to the above functions, it can also be used as a back projection imaging carrier.