High resolution is the definition thatMany people remember when they go to the store for a new TV. The newest word in this area is the 4K Ultra High-Definition format. For many it's just a set of letters. So, 4K UHD TVs - what is this? The most popular at the moment can be called Full HD monitor. Ultra HD can be defined as a device that can transmit an image with active pixels. They, in turn, a huge number (more than eight million). The resolution is 3840 x 2160 pixels.

This figure was obtained by doubling the already familiar resolution of 1920 x 1080. This became the standard for clarity standards. Below we will consider the variety of screen sizes.

So, at the moment resolution for clarity is:

• Full HD (progressive scan 1080);
• 1080i (interlaced scan);
• HD Ready (720 pixels per inch).

The latter is the most common of them, after allto date almost all television channels, DVDs have this resolution (720 x 480). But this format can be considered obsolete. If you already buy a new TV, it's better not to consider this option at all, even if it's a big diagonal and at a bargain price. When choosing a TV set, you should pay attention to the frequency in Hertz. It must be at least 120.

Extension 4K

The 4K format appeared only recently, in 2005. The human eye is not so easy to see the difference in the newest resolution and the already familiar 1080. It's especially hard to see the difference if the resolution of 1080 shows, for example, Blu-ray.

The difference is noticeable when viewing specialdemos from the manufacturing companies. To determine the purchase and its feasibility, you need to consider all the advantages and disadvantages of the favors. So with a high-definition TV.

What are the advantages of the Ultra HD expansion?

A huge screen shows with incredibleclarity, individual pixels on it can not be seen, as on 720p-analogues. This is an undoubted plus. The same as the realism of what is happening on the screen: you can feel yourself a part of the movie scene. Saturation of colors and transitions from shade to shade allow to see all variety of natural and artificial colors.

Even if a film or broadcast is broadcast inunsuitable format, a special feature will allow you to adapt the image in 4K. Receivers are equipped with many additional functions. TVs with this resolution can be set, for example, voice control or gestures, the ability to synchronize them with other devices, such as a personal smartphone.

4K-adaptation

The broadcasting of channels does not pass in"Ultra-HD", but thanks to the possibility of adaptation, you can purchase a screen with such an extension and enjoy a clear picture. Combine the function of adaptation of almost all TVs 4K UHD. What does this give a simple audience? It's nothing short of an opportunity to see the smallest details, even in long-beloved transmissions.

The new image format allows you to open new possibilities.

For people whose work is related to photography, 3D graphics, the production of games and, of course, films, the new TV will be an excellent assistant.

Disadvantages of the newest resolution

And now a little about the drawbacks, which are present while using such novelties as 4K UHD TVs. What could it be?

Not wide distribution of content. In our country, few channels have switched to HD, and Ultra HD is not available to everyone, and it will have to be paid separately. It is only included in the paid channel packages, and their choice is small. The price category is high. And although recently the operators are working on this issue, for most consumers the service is unavailable.

Fuller sensations from the new broadcast can be obtained if the devices connected to the TV will go through the cable of the currently not widely used HDMI 1.4, and the already improved 2.0.

Output 1.4 can do the conversionimages, but still some of the expansion will be lost. The new 2.0 cable will allow you to watch movies even at a frequency of up to 60 frames per second, while a modern analog only plays 30. When choosing a new TV, it is advisable to pay attention to the fact that there are several HDMI ports. 4K UHD-TVs, customer reviews about which only positive, most likely, will occupy a certain place in the consumer market, and, apparently, not the last.

OLED: The New Generation

CRT TVs have long evolvedin modern liquid crystal or plasma panels. But the top is rightfully occupied by OLED-TVs 4K UHD. What is it? This panel consists of organic light-emitting diodes. Such technology is very popular with manufacturers and interested buyers, as it is very new in design. The main advantage of such a panel is a curved screen. It allows such an ability to realize many bold decisions. To this panel, you do not need to create additional illumination, as to another screen, for example LED 4K UHD. The LCD TV of the previous generation can not technically approach the problem of lighting.

OLED-panels with a resolution of 4K - this is truethe best combination for a TV today. This screen is quite large (from 55 diagonals and above). The price, of course, is also rather big. On average, it is about 400 thousand rubles. On some models, the price reaches one million rubles. Many firms that produce household appliances have already submitted their TV sets with a similar extension. Leaders in this segment are Sony and Samsung.

Sony KD-65X9005B

This model is one of the most purchased. However, the cost of the current exchange rate for residents of Russia seems not everyone can afford - about two hundred thousand rubles. To enjoy all the delights of the latest technology, it's worth paying a good price. This TV is already equipped with a HDMI 2.0 port and the already familiar HEVC.

Thanks to the availability of these gadgets, the TV does notwill become obsolete for a long time. The quality does not change with the increase in the picture. You can consider the smallest detail on high definition. 4K UHD TVs Sony have a wide range of sizes and a large selection of models.

"Samsung UE65HU8500"

This model appeared around the same time thatabove-mentioned. The price of the Samsung 4K UHD TVs is not much different from the competitors' counterparts - about three hundred thousand rubles. But this model looks very stylish. It can fit into any interior and will be its decoration. The main difference is, of course, a curved screen. This innovation, which makes you freeze with delight. The immersion in the picture becomes even more realistic. The effect of full presence is created. This TV immediately attracts attention. The HDMI 2.0 port is also present, which is an important plus.

"Toshiba 58L9363"

This model can be called the most affordable in the class4K TVs. It was with its appearance that other producers were forced to revise prices in a lower direction. This TV does not have many functions, but the second generation allows you to watch the new 3D.

There are no new ports, but in order to watch it the new Ultra-HD format, there is everything you need. And most importantly - there is a realistic transfer of colors and the smallest details of images.

Panasonic TX-50AX802

In addition to the natural abilities of reproductionthe newest image quality, this model has an interesting function that rewinds real-time broadcast programs. It's called Freetime. Connecting to the Internet allows you to create an owner profile directly on the TV screen, which will help him share video with his friends. So, in addition to watching the broadcasts in the highest quality, now you can spend your time even more interesting.

LG 55UB950V

Design of TVs of this brand is always impressive.

This model is no exception. 4K UHD LG TVs contain many different gadgets and have a very easy operating system - webOS. This is an exceptional system, which is only available in electronics from LG. TV is able to please all the advantages of Ultra-HD - from color to clarity.

4K UHD TVs. Should I buy?

You can buy a new screen with Ultra HDnow, since in the near future it is possible to replace the current formats with more distinct ones. Obsolete in the coming years, this model will not have time. Of course, technology does not stand still, and the emergence of newer models (for example, 8K, surpassing the current 1080 is no longer 4, but 8 times) is not far off. True, this can only be available on very large screens, and it will be difficult to see the difference. While the development and large-scale production is not expected. Due to the high cost, the demand will be small. If funds allow, you can now enjoy a beautiful picture at home. As they say, you have to pay for the quality. 4K TVs are no exception.