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, thereby …

Both OLED screens and LED screens are known for their energy efficiency, brightness and vibrant, lifelike colors. So, what is the difference between OLED and LED? We will delve into the intricate …

LED stands for light emitting diode. LED lighting products produce light up to 90% more efficiently than incandescent light bulbs. How do they work? An electrical current passes through a microchip, which …

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 type of …

Jan 2, 2026 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.

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, which releases …

Sep 20, 2024 · As mentioned in the introduction, an LED is a semiconductor light source. It consists of a PN Junction Diode and when voltage is applied to the LED, electrons and holes recombine in the PN …

The light-emitting diode (LED) is today's most energy-efficient and rapidly developing lighting technology. Quality LED light bulbs last longer, are more durable, and offer comparable or better light …

The first question that might pop into your mind is, what is exactly an LED? A regular diode is a semiconductor device that works as a one-way switch for electrical current. It allows current in only …

LEDs are a type of semiconductor called “Light Emitting Diode”. White LEDs, which have achieved practical realization through the use of high-brightness blue LEDs developed in 1993 based on …