Organic light-emitting diodes (OLEDs) have become a standard in modern devices with incredible contrast and sleek designs.

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 deep blue organic light-emitting diode (OLED) developed by researchers at Science Tokyo operates on just a single 1.5 V, overcoming the high-voltage and color-purity problems that have long limited ...

NHK’s Science & Technology Research Laboratories (STRL), in collaboration with Professor Hirohiko Fukagawa of Chiba University’s Advanced Science Center and Professor Takuji Hatakeyama of Kyoto ...

You’ve likely heard that blue light from smartphone screens may be keeping you awake at night. While the sun is our main source of blue light, the rise of LEDs and screen use exposes us to artificial ...