Laminated glass is composed of two or more pieces of glass, sandwiced between a layer or multiple layers of organic polymer film, after a special high temperature prepressure (or vacuum) and high temperature and high pressure process, the glass and the intermediate film permanent bonding as one of the composite glass products.
Even if the glass is broken, the fragments will be stuck to the film, and the broken glass surface will still keep clean and smooth. This effectively prevents the debris from puncturing and falling through the event to ensure personal safety.