Patent ID: 11914184
Assignee: TACTOTEK OY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC F  G

Claim 0:
1. 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; and
a plurality of top-emitting, bottom-installed light sources provided upon a first side of the substrate film to internally illuminate at least a 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, provided upon the first side of the substrate film, said plastic layer at least laterally surrounding or neighbouring, the light source,
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; and
at least one further, material layer, in contact with the reflector design, said at least one further material layer having a lower refractive index than the plastic layer.