Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further than ...

Full-color displays normally require separate red, green and blue light emitters. A team from the University of Osaka and ...

Researchers have designed and tested ‘human-centric’ LEDs that emit different wavelengths of blue light depending on whether it’s daytime or nighttime, reducing the disruptive effect artificial light ...

Forget harsh bleach—scientists have discovered that powerful blue LED light can erase yellow stains from sweat, food, and oils without harming delicate fabrics like silk. By harnessing oxygen in the ...

Dermatologists and skin care experts explain how at home LED face masks really work, which wavelengths matter most, and what ...

Shuji Nakamura already transformed the world once. His invention of blue light-emitting diodes (LEDs) changed everything about our daily lives. Computers, phones, big screens, traffic lights and ...

Call it the fifth generation of light—the availability of electric lights that promote health and well-being by automatically mimicking the natural cycle of light. They switch between blue-rich ...