The full face tempered glass is a full-coverage tempered glass designed specifically to protect your mobile screen from scratches and other damages. In case of a drop, it does not provide absolute protection but offers additional security. It does not affect the functionality of the screen.
The black frame covers the entire surface of the screen, including the edges. It features adhesive across the entire surface, allowing for better application and smooth operation of the touch screen. Additionally, it prevents dust from passing underneath, which can happen with edge glue glasses if their adhesive becomes damaged.
It can be removed at any time without leaving marks or causing issues to the screen.