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A light-emitting diode (LED) is a semiconductor device that emits light when an electric current flows through it. Based on the semiconductor material used and the amount of doping, an LED will emit a coloured light at a particular spectral wavelength when forward biased.
noun. ˌel- (ˌ)ē-ˈdē. plural LEDs. : a semiconductor diode that emits light when a voltage is applied to it and that is used especially in electronic devices (as for an indicator light) Did you know? When to Use Lead or Led. There is some persistent confusion about lead and led. Or, we should say, there is confusion about the leads and led.
abbreviation for light-emitting diode: a type of diode (= a device that controls an electric current so that it can only flow in one direction) that produces light: He contributed to the invention of various gadgets, including the first practical light-emitting diode, or LED.
A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons.
LED. / ĕl′ē-dē ′ ,lĕd /. Short for light-emitting diode. An electronic semiconductor device that emits light when an electric current passes through it. They are considerably more efficient than incandescent bulbs, and rarely burn out.
Jul 17, 2024 · LED, in electronics, a semiconductor device that emits infrared or visible light when charged with an electric current. LED displays began to be used for consumer electronic devices starting in 1968, when Hewlett-Packard (HP) introduced the first LED display.
Jul 31, 2009 · An LED is an electronic device that emits light when an electrical current is passed through it. Early LEDs produced only red light, but modern LEDs can produce several different colors, including red, green, and blue ( RGB) light.
1. combining form [usually ADJECTIVE noun] -led combines with nouns to form adjectives which indicate that something is organized, directed, or controlled by a particular person or group. ...the student-led democracy movement. ...a German-led European consortium. 2. combining form.
(in adjectives) influenced or organized by. a consumer-led society. student-led activities. Check pronunciation: led. Definition of led in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Define led. led synonyms, led pronunciation, led translation, English dictionary definition of led. past tense of lead: He led them along the path. Not to be confused with: lead – to conduct or escort: lead them out; a heavy bluish-gray metal Abused,...
