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electroluminescent display[i¦lek·trō‚lü·mə′nes·ənt di′splā]
a flat solid-state visual display in the form of a rectangular array consisting of two mutually perpendicular systems of transparent parallel conducting strips, or electrodes. The strips of one system are separated from those of the other system by a layer of an electroluminescent phosphor (seePHOSPHORS). Electroluminescent displays are used in, for example, oscillographic devices, data display devices with a low storage capacity, and various types of signal boards.
In the most widely used electroluminescent display, the phosphor element at the intersection of a pair of perpendicular electrodes lights up when an AC potential difference is established between the pair of electrodes. The brightness of the emission depends on the magnitude of the potential difference. Complex images may be reproduced on the display by controlling the brightness of the emission from the phosphor elements in a specific manner.