Noun | 1. | light-emitting diode - diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used alphanumeric display, digital display - a display that gives the information in the form of characters (numbers or letters) crystal rectifier, junction rectifier, semiconductor diode, diode - a semiconductor that consists of a p-n junction OLED, organic light-emitting diode - a self-luminous diode (it glows when an electrical field is applied to the electrodes) that does not require backlighting or diffusers |