Patent ID: 11906774
Assignee: TACTOTEK OY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G | IPC F  G

Claim 5:
6. An integrated optically functional multilayer structure suitable for large area dynamic illumination, comprising:
a flexible substrate film arranged with a circuit design comprising at least a number of electrical conductors printed 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 an 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, wherein the plastic layer comprises tinted resin; and
a reflector design comprising 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 layer towards the plastic layer.