QLED TVs offer the best picture quality until you compare them to OLED TVs. But mini-LED technology might change that while also bringing prices down.
Mini-LED and QLED are two TV tech acronyms that have more in common than one might expect. They’re technically both types of LED lighting, but the former is one type of LED lighting, while the latter is what you get when you combine the TV’s LED backlighting with a layer of quantum dots. If we’re starting to confuse you, our sincere apologies, but do bear with us.
Related LED TVs and QLED TVs use LEDs as their backlights. However, not all TVs using this technology are created equal. Inexpensive LED TVs may use only a few LEDs arranged around the outside edges — thus the term “edge-lit” TVs — while the most expensive sets use hundreds of LEDs arranged in a grid-like pattern, sub-divided into individually controlled zones. These are known as full-array local dimming .
A 4K TV has just over 8 million pixels, so mini-LEDs are still significantly bigger than an individual pixel, but that’s OK: Mini-LEDs are so much smaller than standard LEDs that you can still see a big difference. With mini-LEDs, local dimming becomes far more effective because it increases the number of dimmable zones while decreasing their size, making it easier to isolate dark areas from light ones. This not only makes the darker portions of the screen darker, but the contrast created makes the lighter portions seem even brighter.
That is until the introduction of QD-OLED technology. Combining the best of both QLED and OLED displays, these cutting-edge sets are currently produced by Samsung and Sony, and they’re pretty incredible. These TVs are equipped with ultra-powerful LED backlighting and quantum dots, which work in unison to enhance how much light is emitted by the OLED screen’s self-emissive pixels.
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