Patent ID: 8471274

Claim:
An apparatus, comprising: A circuit strip having a twisted “U” shape, the circuit strip comprising: A transparent substrate including a first surface and a vertically oriented surface perpendicular to the first surface; at least one bare light emitting diode (“LED”) die contacting the first surface of the transparent substrate, each of the at least one bare LED die comprising: planar N-doped region having a vertical surface and a surface positioned parallel to the transparent substrate and facing the first surface of the transparent substrate; and a P-doped region having a vertical surface and defining a mesa-shaped surface facing away from the first surface of the transparent substrate, the P-doped surface disposed parallel the N-doped surface; an insulator comprising non-conductive ink contacting vertical surfaces of the N-doped region, and the P-doped region of at least one of the bare LED dies and substrate; and conductive ink contacting the insulator wherein the at least one bare LED die is electrically coupled with the conductive ink.