Patent ID: 8628634

Claim:
Method of bonding a film having a substantially plane initial shape to a curved face of a substrate, the method comprising the following successive steps: a) when the film is at a temperature above 40° C., holding firmly a peripheral edge of the film and applying a pneumatic pressure difference between two sides of the film until an application face of said film becomes curved with a curvature greater than an average curvature of the face of the substrate; b) when the temperature of the film has dropped below 40° C., adjusting the pneumatic pressure difference applied between the two sides of the film so that the curvature of the application face of the film becomes approximately equal to or less than the curvature of the face of the substrate; and c) while maintaining the pneumatic pressure difference adjusted at step b), pressing the fade of the substrate is pressed against the application face of the film until complete contact is established between the film and the face of the substrate, a layer of an adhesive being placed between the film and the substrate.