LUMINESCENT DISPLAY DEVICE

摘要

A device for displaying identifying indicia resembling alphanumeric characters or symbols for use on signs, or which may be placed on houses or buildings to indicate their location on a street. The device comprises a substrate made of a metallic alloy or other material, and a top layer of luminescent material. The visible portion of the top surface of the substrate resembles the identifier to be displayed and can be easily seen in daylight, while the layer of luminescent material which also resembles the identifier can be easily seen in the dark.