The glass at the rear of a car is commonly referred to as the rear windshield or rear window. Rear Window is a general expression suitable for daily communication; Back Windshield emphasizes the structural aspect of the glass and is commonly used in maintenance and parts replacement; Rear Glass is predominantly used in the insurance and automotive repair industries. The rear windshield is designed with laminated safety glass, incorporating a plastic interlayer to enhance strength. It provides heat insulation, soundproofing, and UV protection, while also preventing shattering in collisions. Some vehicle models feature rear windows with electric defrosters, wipers, or independent opening mechanisms to enhance functionality and safety. Tinted privacy films or reflective decals can offer additional thermal insulation and privacy. As a critical component of the vehicle's visibility system, the rear window's clarity directly impacts driving safety. When replacing it, OEM-grade parts compatible with the specific vehicle model must be selected to ensure proper sealing and functional integration.