What is Electroluminescent
The most common electroluminescent (EL) devices are composed of either powder (primarily used in lighting applications) or thin films for information displays (Wikipedia).
To put it simply, EL lamps or "high field electroluminescent" lamps use electric current directly through a phosphor to make light. Unlike most lamps, they can be shaped to be extremely flat, or in narrow wire-like shapes. Electroluminescence or "EL" is the non-thermal conversion of electrical energy into light energy. This phenomenon is used in EL lamps, LEDs, and OLEDs (edisontechcenter)
In the field of paper and book restoration and conservation
EL is a sheet of thin and flexible plasti...