Smart film, also known as switchable film or privacy film, is a type of film that can change its appearance from opaque to transparent with the application of an electric current. It consists of a thin layer of liquid crystal molecules sandwiched between two transparent conductive layers. When the electric current is applied, the liquid crystal molecules align, allowing light to pass through and making the film transparent. Conversely, when the current is turned off, the liquid crystal molecules become randomly oriented, scattering light and making the film opaque. Smart film offers a range of applications across various industries due to its ability to switch between transparent and opaque states. Here are some common applications: Privacy and Security: Smart film can be used to create privacy in settings where visual confidentiality is required, such as conference rooms, office partitions, and medical facilities. By switching the film to its opaque...