| abstract |
A light source comprising a transparent or semi-transparent substrate on which the quantum dot phosphors are printed or coated and a primary light source located away from the substrate. The primary light source may be a blue LED, a white LED, or an LED that represents most of the emission in the ultraviolet region of the spectrum. The LED may be a backlight, an edge light, a down light, or an upward light of a transparent or translucent substrate. |