Process for manufacturing a non-opaque layer for a multilayer structure comprising a window, and a multilayer with such a non-opaque layer

A process comprising covering an area of a first layer with a patterned plate, pressing said patterned plate against a first surface of said first layer so as to form a first region and a second region in said first layer, and removing said patterned plate from said first surface, wherein said first layer is made of a non-opaque plastic material having an initial thickness, wherein said patterned plate forms a cavity having a size of that corresponds to a window, and wherein said second region is thicker than said first region by an extra thickness.

A manufacture comprising a first layer, wherein said first layer comprises non-opaque plastic material, wherein said first layer comprises a first region and a second region, wherein said second region is integrally formed with said first region, wherein said second region has a thickness that exceeds a thickness of said first region by an extra thickness, wherein said second region forms a single and homogeneous layer over said thickness thereof.