Patent ID: 11966116
Assignee: nan
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G | IPC F  G

Claim 18:
19. The display of claim 14 wherein:
the lightguide is formed from a film and comprises an array of coupling lightguides in a form of strips of the film extending from and continuous with the lightguide region of the film;
each coupling lightguide of the array of coupling lightguides terminates in a bounding edge;
each coupling lightguide is folded in a fold region such that the array of coupling lightguides are stacked and oriented in a first direction parallel to their stacked surfaces and the bounding edges of the array of coupling lightguides are stacked; and
the light source is positioned to emit light into the bounding edges, the light propagating within the array of coupling lightguides to the lightguide region, with light from each coupling lightguide combining and totally internally reflecting within the lightguide region.