[Keith]’s cousin gave him a LCD with a noisy backlight. He decided to replace it with a series of high output LEDs. He sourced some locally in the form of cheap LED headlamps from an auto-parts ...

More recent screens replace the bright white backlight with an array of LEDs that light up with the image, but the electronics to make that happen are not exactly trivial. The solution?

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 ...

The trouble is, most on-screen images are made up of bright and dark regions, so if you want a bright region to be really bright, and your backlight essentially behaves as a single LED ...

Local dimming essentially does away with the single, massive backlight in an LED. Instead, local dimming utilizes multiple backlights, and turns them on and off depending on what’s in the image.

while the latter is what you get when you combine the TV’s LED backlighting with a layer of quantum (that’s where the “Q” comes from) dots. If we’re starting to confuse you, our sincere ...