Read more here. Maybe you’ve seen an influencer gliding an illuminated red wand across their face or a glowing Jason-like mask on a beauty-savvy friend — these are LED (light-emitting diode ...

Some 4K TVs have QLED or OLED displays, but most are LCD, and many of those have LED backlights. When you're shopping for a new TV, these are the sets you'll come across most often. We're going to ...