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 ...

Samsung now has TVs with Micro RGB, QLED, and OLED displays. Here are the pros and cons of each, based on our lab testing.

It’s hard to believe that the first blue LED didn’t arrive until 1993. They look simple, but looks are deceiving (Fig. 1). 1. Image showing a blue InGaN-based LED with gold wire contacts (0.4 × 0.4 mm ...

RGB LED is the latest evolution of TV backlighting. Here's how it compares with Mini LED and other modern display technologies.

Smart light bulbs range from budget to premium, offering color control, voice support, easy setup, app-based customization, ...

Blue light from LED lamps and consumer electronics can mess with your sleep because it disrupts production of the natural sleep hormone melatonin. Tinted glasses or displays in night mode can mask, ...