Patent ID: 11934004
Assignee: TACTOTEK OY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC F  H

Claim 17:
18. A method of establishing a multilayer assembly for an electronic device, the method comprising:
printing a conductive trace on a first side of a flexible substrate film that is configured to accommodate electronics;
disposing a bottom layer including a diffuser on a second side of the flexible substrate film;
providing a light source on the first side of the substrate film;
molding a thermoplastic lightguide layer onto the first side of the substrate film, thereby at least partially embedding the light source, the thermoplastic lightguide layer configured to transmit therethrough light emitted by the light source; and
providing a masking layer on the thermoplastic lightguide layer, the masking layer configured to block an external view of the light source, the masking layer defining a window for letting the light emitted by the light source to pass therethrough towards an external environment.