What is EL? What is the difference between conventional EL and DFLX EL?
An Electroluminescent (EL) lamp is a solid state, low power, uniform area light source with a thin profile. It is, basically, a flat luminescent capacitor. By applying alternating voltage to the electrodes, phosphor particles that are dispersed in dielectric get excited and emit light through a transparent electrode. Currently, Rogers provides two types of EL lamps: Conventional (traditional) DUREL® EL lamps and flexible “DUREL® DFLX®” lamps. Both are used in transflective transmissive devices to light displays and keypads. Traditional EL lamps are comprised of various ink layers printed on a polyester carrier and are 0.25mm thick. Traditional EL lamps provide uniform lighting and low power consumption. A DFLX EL lamp is substrate free and is even thinner than our conventional EL lamps with thickness ranging from 0.10mm to 0.12mm thick. The DFLX EL lamp is designed to peel away from its carrier sheet leaving just the thin and very flexible cured ink layers as the finished product. DFLX
