OPTICALLY FUNCTIONAL MULTILAYER STRUCTURE SUITABLE FOR LARGE AREA ILLUMINATION AND RELATED METHOD OF MANUFACTURE

An integrated optically functional multilayer structure includes a flexible, substrate film arranged with a circuit design including at least a number of electrical conductors on the substrate film; and a plurality of top-emitting, bottom-installed light sources provided upon a first side of the sub...

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Hauptverfasser: SINIVAARA, Hasse, BRÄYSY, Vinski, HEIKKINEN, Mikko, RAUTIO, Tapio, SIPPARI, Mikko, KORHONEN, Pasi, YRJÄNÄ, Samuli, SÄÄSKI, Jarmo, ASIKKALA, Janne, APILO, Pälvi, RAJANIEMI, Tero, JUVANI, Johanna, KELA, Suvi, MIGLIORE, Olimpia, RUSANEN, Outi, KOIVIKKO, Simo, HINTIKKA, Juha-Matti, NISKALA, Paavo, SIMULA, Tomi, TUOVINEN, Heikki, WALLENIUS, Ville, HEIKKINEN, Tero, KERÄNEN, Antti, SEPPONEN, Juha, SALMI, Taneli
Format: Patent
Sprache:eng
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Zusammenfassung:An integrated optically functional multilayer structure includes a flexible, substrate film arranged with a circuit design including at least a number of electrical conductors on the substrate film; and a plurality of top-emitting, bottom-installed light sources provided upon a first side of the substrate film to internally illuminate at least portion of the structure for external perception via associated outcoupling areas, wherein for each light source of the plurality of light sources there is optically transmissive plastic layer, produced upon the first side of the substrate film, said plastic layer at least laterally surrounding the light source, the substrate film at least having a similar or lower refractive index therewith; and reflector design including at least one material layer, provided at least upon the light source and configured to reflect the light emitted by the light source and incident upon the reflective laver towards the plastic layer.