A flexible sheet which includes a substrate having at least one visually discernable
surface and at least one electroluminescent lamp assembly positioned proximate
to the surface and controlled by a suitable power source as well as means for isolating
at least one electroluminescent lamp assembly from deleterious interaction with
environment external to the flexible sheet. The flexible sheet can be employed
in various applications including bound books, functional cards, locational orientation
devices as well as in mechanisms for selectively indicating ingress or egress from
architectural structures and other safety indicators. At least one component of
the flexible sheet with the electroluminescent lamp assembly can be produced by
drop ejection.
