Abstract: An LED assembly may include a substrate, an elongate mounting structure that is formed in or on the substrate, and an LED that is mechanically secured to the elongate mounting structure. A light producing apparatus may include a substrate, an elongate mounting structure that may be formed in or on the substrate, and a plurality of LEDs that may be removably secured to the elongate mounting structure. A light producing array may include a substrate, a first elongate mounting structure that is formed in or on the substrate, and a second elongate mounting structure that is formed in or on the substrate. A first plurality of LEDs may be removably secured to the first elongate mounting structure. A second plurality of LEDs may be removably secured to the second elongate mounting structure.

Abstract: A dual display system includes a graphic article providing a first display in a first lighting condition (such as daylight) and a projection system providing a second display in a second lighting condition (such as nighttime). In an exemplary embodiment, the graphic article is a perforated imaged film and the projection system includes a projector and a diffuser screen.