What do you get for the geek who has everything and likes LEDs? A tricked-out LED tester, naturally. [Dave Cook]’s deluxe model sports an LCD screen and two adjustable values: desired current and ...

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 ...

All so-called LED TVs are really just LCD TVs that use LEDs for their backlight. This backlight creates the light that allows the LCD to create an image. However, there are multiple ways these LED ...

OLED is the new kid on the block, taking on LCD and plasma, the now elder statesmen of the TV world. OLED has the hype, LCD has the sales, and plasma as the adoration of most TV reviewers. So which ...

Over the last several years, small color LCD displays have been integrated into an ever-broadening range of products. Color displays, once considered a luxury in cell phones, are now a standard ...

If you’ve worked on a project with small LEDs, you know the frustration of determining their polarity. This ingenious LED Probe from [David] packs a lot of useful features into a simple, ...