Electroluminescent Devices, Subassemblies for use in Making Electroluminescent Devices, and Dielectric Materials, Conductive Inks and Substrates Related Thereto

Electroluminescent devices, subassemblies for use in making electroluminescent devices, and dielectric materials, conductive inks and substrates for use in making such subassemblies. One such electroluminescent device includes a first subassembly having an emitter layer for emitting light upon the application of an electric field and a first conductive layer adjacent a first side of the emitter layer and being substantially transparent. Such a device also includes a second subassembly having a second conductive layer and a patterned dielectric layer printed adjacent the second conductive layer. At least one of the conductive layers is formed in a pattern. The first subassembly and the second subassembly are joined to provide a circuit capable of causing electroluminescence by the emitter layer in a pattern defined, at least in part, by the pattern of at least one of the conductive layers and the patterned dielectric layer.