What is the difference? More pixels! 4K TVs have about four times as many pixels as 1080p displays, and 8K TVs have about four times as many pixels as 4K models, or 16 times as many as 1080p. In theory, this means a much clearer picture, but that’s not necessarily the reality. Because the pixels on a standard-size (55-65 inch) 4K TV are already so densely packed on the screen, you may not be able to see the difference between 4K and 8K TVs unless you’re watching from a distance. close. Additionally, there is very little content available in 8K.
For now, it’s best to opt for a 4K UHD display, unless you have a very high budget.
What is backlight?
Simply put, TVs (except OLED TVs and some specialized microLED models) are made up of multiple layers. There is a layer that generates the color and the image, just as there is another that illuminates that image so that we can see it. These backlight systems have a large impact on the image quality of the screen in terms of contrast (the difference and definition between dark and light objects). Here’s what some backlight-related terms you’re likely to come across mean:
Peripheral backlight
It is typically used in lower-end televisions or those that need to be thinner than their directly backlit or local dimming counterparts. It involves a ring of lights around the screen that are used to illuminate the screen.
Directly backlit televisions
They hide their backlight behind the screen and can generally be brighter than their peripherally backlit counterparts.
local dimming
It’s a technology increasingly seen in mid-range TVs, where multiple LEDs on the back of the TV can be coordinated to illuminate or not illuminate smaller sections of the screen as needed. This provides better contrast and less light-to-dark bleed.
Mini-LED technology ($500 and up)
It takes local dimming to a more precise level, allowing even more areas behind your panel thanks to thousands of small LEDs and therefore even better contrast.
OLED or ‘organic LED’ screens (starting at $800)
They have individual pixels that act as their own backlight, providing perfect contrast. The blacks are really black because the pixel is completely turned off. The downside is that these TVs don’t get very bright and may not be ideal in living rooms or spaces that get a lot of sunlight. Under extreme viewing conditions, you may also encounter “burn-in,” where the content you view leaves a visible mark on the screen; this is rare and only happens if you leave static images on the screen for thousands of hours.
MicroLED technology ($1,000 and up)
Take Mini-LED one step further and try to compete with OLED. The TV is packed with many microLEDs which, like organic LEDs, act as their own backlight and emit their own red, green and blue colors. This allows them to offer black levels and contrast similar to those offered by OLED, but can be much brighter. Right now, these TVs are very large and expensive (it’s hard to make traditional LEDs small enough), but we expect this technology to become more common in the future.
What are quantum dots?
Samsung S95D Crystal BirdPhotography: Ryan Waniata.
Another display technology you’ll hear a lot about when shopping for a new TV is QLED . While this technology may look almost identical to OLED in a TV set-top box, it is actually a variation of LED TV technology with one distinct difference: quantum dots.
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