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(physics) The generation of light by the application of an alternating current to a semiconductor or phosphor, or by an electric discharge through a gas.

Views of a liquid crystal display, both with electroluminescent backlight switched on (top) and switched off (bottom)

(physics) The generation of light by the application of an alternating current to a semiconductor or phosphor, or by an electric discharge through a gas.

Spectrum of a blue/green electroluminescent light source for a clock radio (similar to the one seen in the above image). Peak wavelength is at 492 nm and the FWHM spectral bandwidth is quite wide at about 85 nm.

(physics) The generation of light by the application of an alternating current to a semiconductor or phosphor, or by an electric discharge through a gas.

1966 Dodge Charger instrument panel with "Panelescent Lighting". Chrysler first introduced cars with EL panel lighting in its 1960 model year.