Light-emitting diode - Wikipedia
In Electrical Engineering, 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, …
Light Emitting Diode Basics | LED Types, Colors and Applications
Sep 16, 2024 · The two most significant semiconductor light emitting sources extensively used in various applications are LASER diodes and LED’s. The principle operation of LASER diodes is …
Light Emitting Diode (LED): Principle, Advantages, and Uses
Jun 10, 2025 · A light-emitting diode (LED) is a small electronic device that emits light when an electric current flows through it. LED works by passing electricity through a semiconductor, …
LED | Definition, Light, & Facts | Britannica
Oct 13, 2025 · 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 …
Light Emitting Diode (LED): What is it & How Does it Work?
Feb 24, 2012 · What is a Light Emitting Diode (LED)? A Light Emitting Diode (LED) is a special type of PN junction diode. The light emitting diode is specially doped and made of a special …
Light Emitting Diode: How LEDs Work, How to Use LEDs
Jun 12, 2025 · What Is a Light Emitting Diode? A light emitting diode (LED) is a special type of diode that emits light when current flows through it in the forward direction. Unlike standard …
Light Emitting Diode LED – Symbol, Construction, Working ...
Nov 10, 2025 · What is an LED? Light Emitting Diode (LED) is a PN junction semiconductor diode that emits light when a forward current passes through it. Simply put, an LED converts …