A method for manufacturing an electronic product, including obtaining a flexible, optically substantially transparent or translucent, substrate sheet, printing, by an additive printed electronics process, a plurality of electrical conductors on the substrate sheet, printing or disposing, a plurality of electronic components including optoelectronic light emissive components on the substrate sheet, at least some of the printed conductors being configured to provide electrical current thereto, providing at least one graphic on the substrate sheet, the at least one graphic configured to enable outcoupling of light, and attaching a flexible, optically substantially transparent, lightguide sheet to the substrate sheet to establish a multi-layer structure, the light emitted by the light emissive components being received by the lightguide sheet, propagating therewithin, and then being at least partly emitted to the environment through the at least one graphic.