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 ...

An upconversion organic light-emitting diode (OLED) based on a typical blue-fluorescence emitter achieves emission at an ultralow turn-on voltage of 1.47 V. The technology circumvents the traditional ...

Eric Franklin led the CNET Tech team as Editorial Director. A 20-plus-year industry veteran, Eric began his tech journey testing computers in the CNET Labs. When not at work he can usually be found at ...

At-home LED devices, particularly those that combine red and blue light, are efficacious for acne and can likely complement other over-the-counter and prescription treatments. HealthDay News — At-home ...

Perovskite LEDs with the world's highest efficiency (EQE = 23.4%) -- Seoul National University and University of Pennsylvania Research team at Seoul National University (Prof. Tae-Woo Lee) and ...

At-home LED face masks look like they came straight out of a “Star Wars” movie, but these devices are less sci-fi and more straight-up science-based. But they do have origins in real-life space travel ...