Light-emitting diodes are front and center for many of our digital experiences. Every modern phone and tablet you look at uses LEDs in its display. It’s worth knowing how these work. In short, LEDs ...

LEDs are tiny components found in phones, TVs, lights, and displays—but how do they actually glow? This video explains how electricity moves through a semiconductor to produce visible light. Learn how ...

Light emitting diode printers are usually classed with laser printers because they use a similar method of creating pages. Like a laser printer, they use a drum, toner and a fuser, and provide crisp ...

LED lights are the latest thing in home lighting, using less energy and lasting longer than their incandescent cousins. How do they work? Find out in the latest installment of Appliance Science.

In the early hours of October 7, 2014, while most of America slumbered, members of the Swedish Academy of Sciences were meeting to decide to whom they should award the Nobel Prize in Physics. The ...

On 7th October 2014, Isamu Akasaki, Hiroshi Amano and Shuji Nakamura were awarded the Nobel Prize in Physics for the invention of efficient blue light-emitting diodes (LEDs). Red and green LEDs were ...

Recently I spent an afternoon changing all the light bulbs in my home to fluorescent devices. It's not mandatory in the U.S., but it saves energy. In places where it is mandatory, like England, ...