What is 4K and what is the difference between it and Ultra HD?

HD, Full HD, Quad HD, 2K, 4K and 8K resolution technologies, which are still available in upper segment devices, are becoming more widespread day by day. Panels with as high resolution as possible are being developed every day for all kinds of screens, from small to large. Today, the most common of these resolution standards is 4K.

Even if you buy a 4K resolution television for your home, you cannot always watch images in this resolution. What is 4K To answer the question, it is necessary to look at the number of pixels, its difference with Ultra HD, and its relationship with HDR. for you What is 4K and what does it do? We answered frequently asked questions such as and explained the details you need to know about the subject.

What is 4K?

4K is a digital resolution format. Pixel value is shown as 3840 x 2160. Average on a screen with 4K resolution 8.3 million pixels There is. This pixel ratio is a full 4x the resolution of Full HD found on older displays

3840 x 2160 ratio, horizontal and vertical pixels expresses. So on a screen with 4K resolution, you'll see 3,840 horizontal pixels and 2,160 vertical pixels. However, by changing the vertical and horizontal parameters and changing the aspect ratios, screens that comply with the 4K standard can be used on phones. 

So where does the name “4K” come from?

To be frank, calling this resolution rate 4K is a bit confusing. tradesman rounding. In fact, 4K resolution is a simpler version of saying “3840 x 2160 pixels”. This comes from the number of pixels the display panel has horizontally, we see 3840 pixels, which means about 4 thousand pixels. In foreign languages, the expression "K" is used instead of "1000 (thousand)". Thus, we call screens that offer approximately 4 thousand pixels on the horizontal plane 4K.

On the other hand, 2K resolution, called Full HD, has a pixel ratio of 1920 x 1080, and 8K resolution has a ratio of 7680 × 4320 pixels. In other words, technology companies listen to their tradesmen and round the figure up a little. 

Small but important difference between Ultra HD and 4K:

It wouldn't hurt if we said Ultra HD and 4K resolution are the same, but There is a slight difference between them It can't go without saying that it is. Ultra HD, UHD or ultra high resolution is a cinema format and its pixel ratio is 4096 x 2160. So Ultra HD is a real 4K (It would be a more accurate definition since it exceeds 4000 thousand pixels horizontally).

Coming to the end consumer's home via large screen smart televisions 4K is the digital version of this cinema format. If you noticed, some television manufacturers call the product 4K instead of calling it 4K for this reason, even if they are 4K. Ultra HD or UHD They introduce it as . 

What is the relationship between 4K and HDR?

HDR, High Dynamic Range, in Turkish: High Dynamic Range; in a frame you see on the screen It is the most accurate spacing between the brightest and darkest points. Thanks to HDR, you have the chance to see every color in the image. Thus, the image you watch gains depth and reality.

There is no direct relationship between 4K and HDR. However, it is impossible to consider a format that offers high resolution such as 4K separately from the color and light technologies that will increase the quality of the experience it offers. Because OLED, HDR, Dolby Atmos We can see many similar light, color and sound technologies with the 4K format.

What does 4K offer to the user?

If you currently have a relatively new television and it does not have 4K resolution, you do not need to think about buying a new product. But if you're looking for a new TV 4K resolution is a must. First of all, even if you do not watch a 4K broadcast on a 4K compatible television, Even HD and Full HD images are of much higher quality will appear because the image will be scaled according to the technology your device has. When you want to watch a 4K broadcast, a large screen television with 4K resolution will provide you with a more realistic image, without annoying grains, almost as if you are watching out of the window.

The 4K resolution smart television you will purchase will most likely come with many light, color and sound technologies such as OLED, HDR, Dolby Atmos and so on. This means, 4K resolution Not just a quality image, It also offers a viewing experience you've never experienced before. 

Playing 4K games will offer gamers an experience they can't get over. Although players have seen a little bit of the 4K experience with PS4 Pro, Xbox One X, Xbox One S, gamers with PS5 and Xbox Series a true 4K gaming experience is offered. 

In addition to all these, free television broadcasts will also be available in a short time. 4K resolution format will become widespread It is estimated. It is thought that we will frequently encounter different broadcast surprises in the coming days, such as the 4K broadcast of the Super Bowl final in the United States. 

To watch 4K, it is not enough for the TV to be 4K:

To enjoy the 4K resolution format, of course, the first thing you need is a television with 4K resolution. It is not enough for the television to be 4K compatible; at this point, the size of the television is also extremely important. At least 40 inches, preferably so you can see the 4K difference With a screen size of 55 inches and above you need a television. The television also has a refresh rate of 120 Hz and above. to HDMI 2.1 connection It is also among the recommended features to have.

Just a big screen, 4K resolution television is not enough; You also need 4K streaming. Netflix, Amazon Prime Video, Youtube Some paid and free platforms such as offer the opportunity to watch 4K broadcasts depending on your subscription type. Some television channels abroad broadcast in 4K. In our country, you can currently access a high-definition broadcast stream via TRT 4K channel. 

Unfortunately, television and broadcasting are not enough. To watch a movie, TV series or video in 4K resolution without interruption and capture the quality it offers 25 Mbps or faster internet connection you need ADSL is not enough for such a speed. To achieve this speed, you need to have a VDSL or fiber internet connection. 

for you What is 4K and what does it do? We answered frequently asked questions such as and explained the details you need to know about the subject. The 4K resolution format, one of the most important points that image technology has reached today, seems to maintain its quality for many years to come and become increasingly widespread.