Patent ID: 8349113

Claim:
Method of sticking a functional film having a substantially planar initial shape onto a curved face of a substrate, characterized in that it comprises: deforming the functional film, and during the deformation of said functional film, said functional film is retained on one face of a deformable auxiliary membrane by connecting means adapted so that the shape of the functional film varies in accordance with deformation of the deformable auxillary membrane, the functional film remaining parallel to deformable auxillary membrane, only the deformable auxillary membrane being held by mechanical means at its perimeter, the functional film being held in contact with said deformable auxillary membrane only by said connecting means, and the connecting means are further adapted so that portions of the functional film can move locally relative to and parallel to the deformable auxillary membrane during the deformation step; and applying the functional film onto the substrate with a portion of a bonding agent between said functional film and the substrate, so that the functional film is stuck to the substrate, wherein the connecting means comprises a capillary liquid layer or a visco-elastic adhesive material layer.