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, …
LED - 나무위키
Nov 3, 2025 · LED는 저전력 및 장수명 등의 특징을 가진다. 정격 범위 내에서 사용하는 한 발광 소자 자체는 비교적 긴 수명이며, 열에 의한 열화가 수명 결정 요인이 된다. LED 조명은 수명과 전기 …
LED란 무엇일까? LED의 기본 원리와 종류, 장점 - 삼성전자 반도체 …
Feb 5, 2013 · 자외선부터 적외선까지, 전기에너지를 빛에너지로 발산하는 LED 그렇다면 LED는 어떻게 빛을 발하는 것일까요? LED는 쉽게 설명하면, 전기에너지를 빛에너지로 변환시켜주는 …
LED | Definition, Light, & Facts | Britannica
Nov 25, 2025 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.
LED의 종류 | LED란 | TechWeb
LED의 종류 LED는 조명이나 스위치, 센서, 백라이트 이외에도 옥외 디스플레이나 가로등, 자동차나 의료기기, 농업과 같은 특수 용도 등, 생활 주변에서 폭넓게 활용되고 있습니다. 그리고, 용도에 …
Light Emitting Diode (LED): What is it & How Does it Work?
Feb 24, 2012 · This page is about Solid State Light or Light Emitting Diode or LED including the introduction of the working principle of LED. The features of LED are also mentioned in this …
LED - Light Emitting Diode: Basics, Types and Characteristics
Sep 20, 2024 · LED or Light Emitting Diode is a very common source of light. An article about Basics of LED, Characteristics of LED and different Types of LED.
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, …
Learn About LED Lighting - ENERGY STAR
When designed well, LED lighting is more efficient, versatile, and lasts longer. LEDs are “directional” light sources, which means they emit light in a specific direction, unlike …
LED (Light-emitting diode) explained - Soldered Electronics
The inside of the LED consists of two main parts – post and anvil. The post is the positive side of the LED, the anode side, and the anvil is the negative side, the cathode.