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 ...

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including ...

A deep blue organic light-emitting diode (OLED) developed by researchers at Science Tokyo operates on just a single 1.5 V, ...

We asked the experts about how screen time might interfere with sleep. Digital screens emit sleep-disrupting blue light, feed us instant and addictive entertainment and encourage stress-inducing “doom ...

Imagine wallpaper that glows like natural sunlight or a phone screen that’s easy on your eyes even at night. Scientists have ...