Buying a new TV can be a fun-filled adventure — but also a harrowing nightmare. In stores and on the Internet, you are bombarded with terms such as HDR, OLED, QLED, 4K Ultra HD and Full HD. But what do they mean? Well, the last two are resolutions and are used to indicate the number of pixels on the screen. As far as TV jargon goes, the more pixels, the better the picture quality. But to understand why, we need to take a closer look at each resolution. Only then can you start considering which screen size is best and finally start looking at our list of the best 4K TVs to find the television of your dreams.
pixels
Pixels are the building blocks of every screen you’ve ever seen. They are tiny little dots that together make up the image you see on the screen. Of course, you can only see these pixels if you are quite close to the screen. From the proper viewing distance, thousands of them merge to create an image on your screen.
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resolutions
720p
A 720p TV has 1280 columns and 720 rows of pixels, hence “720p”. Multiply the two numbers for a total of 921,600 pixels. This is the minimum TV resolution that can be called “high definition” or HDTV.
1080 p
Often 1080p is called “Full HD”. In a 1080p TV, there are 1,920 columns multiplied by 1,080 rows for a total of 2,073,600 pixels — more than twice as many pixels as you’ll find on a 720p TV screen. 1080p has been the industry standard for high-definition displays for some time, and most content (ie TV shows, shows, and movies) is produced and distributed in 1080p.
4K Ultra HD
The next level of HD is 4K — often called “Ultra HD” or UHD. Technically, the name is a bit of a misnomer as there are 3840 columns and 2160 rows of pixels that make up a 4K TV screen, which is why you’ll occasionally see this resolution referred to as 2160p. That’s a total of 8,294,400 pixels, which is four times more pixels than a Full HD 1080p display and nine times more pixels than a 720p display. This is considered high pixel density.
For a long time, Ultra HD TVs hovered on the fringes of the market, too expensive for most viewers (which again meant that creating 4K content wasn’t a worthwhile investment for studios). That’s changed over the past few years, as UHD TVs have become affordable even for cost-conscious consumers, resulting in studios giving in and churning out 4K material left, right and center.
Additionally, you’ll also see several other consumer tech items boasting 4K as a premium feature. This is everything from 4K home security cameras to 4K gaming monitors.
Image used with permission of the copyright holder
Why upgrade?
So what does all this mean? What’s the point of upgrading your beloved CRT TV to a dazzling 65-inch UHD screen? Well, first of all, it just looks better – a lot better. Lines will be sharper, curves smoother, and the level of detail far greater. With a higher resolution screen, you can sit closer without seeing pixels (context: you don’t want to see pixels).
You also have to keep size in mind. If you’re buying a 24-inch TV for your kitchen, for example, you’ll barely notice the difference between 720p and 1080p. Similarly, if you’re buying a 32-inch TV for your bedroom, you won’t notice many of the benefits of 4K resolution. That said, with relatively low prices, if you’re watching a TV over 40 inches, you might want to go for 4K.
In addition, manufacturers these days are fully focused on creating high-quality 4K TVs, which means they often boast improved technology, such as support for high dynamic range (HDR) colors.
Future
Worried that the expensive 4K TV you’ve been eyeing will be out of date in a year or two? Don’t be – at least not yet. They say 8K is on the way, but this resolution is insanely expensive for now. Only the human eye can see that much detail, meaning the difference between 4K and 8K isn’t as visually drastic as the difference between 1080p and 4K, so you’ll be safe for the foreseeable future.
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Source: newstars.edu.vn