Glass protective film for covering a curved surface of a portable display, device of adhering the glass protective films to the curved surface of the portable display, and method of adhering the glass protective film to the curved surface using the device

A glass protective film configured for covering an exterior display area of a portable device, the exterior display having a contour including a flat display area and a curved display area, the glass protective film comprising:

• a glass film member having an outer edge and a contour including a flat area portion corresponding to the flat display area of the exterior display and a curved area portion comprised of a curved surface extended from an edge of the flat area portion and corresponding to the curved display area of the exterior display, wherein the contour of the glass film member deviates from the contour of the exterior display to create a varying gap between the two, wherein the glass film member comprises:
• a glass layer including the flat area portion and the curved area portion;
• a base layer including a polymer film covering the entire area of the lower surface of the glass layer;
• and
• a first adhesive layer positioned between the glass layer and the base layer to adhere the glass layer and the base layer to each other;
• a second adhesive layer formed by an adhesive composition configured to be applied as a fluid to the exterior display, the adhesive composition having a viscosity in the range of from 1 to 500 cps and comprising a UV polymerizable oligomer and a photopolymerization initiator, so as to spread and be cured between an entire area of the glass film member and the exterior display area of the portable device;
• wherein the resulting second adhesive layer adheres the entire area of the glass film member to the exterior display area of the portable device by fluidly filing the varying gap.