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 ...

A research team from the Faculty of Engineering at the University of Hong Kong (HKU) has successfully used mechanical ...

With the invention of the first LED featuring a red color, it seemed only a matter of time before LEDs would appear with other colors. Indeed, soon green and other colors joined the LED revolution, ...

Select an option below to continue reading this premium story. Already a Honolulu Star-Advertiser subscriber? Log in now to continue reading. >> A large band gap means higher-energy photons, which in ...

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 ...

Think of an item — any item — you might use in home decor. Chances are somebody now sells a version of same that comes equipped with color-changing LED lights. “Get your glow on,” suggests Pottery ...