Dormitories and general wards in hospitals house a number of patients simultaneously. With the intelligent PDLC smart glass films, individual areas can be cordoned off during doctor visit or when the patient requires privacy. These smart glass films can also meaningfully replace the blinds and curtains of rooms to make the room comfortable. With the transparent mode, patients can view outside the room and see the world outdoors, whereas while resting and sleeping, they can switch off the screen to convert the wall into opaque blinds.