Ultra HD and 4K Technology

4K technology is slowly making its way into the digital world, from TV screens to PC monitors, through projectors and video cameras. The very high resolution has been in the IT sector for some time and has indeed not arrived on tiptoe, but the transition to UHD has been so far rather slow, complicit the technical limitations of the majority of devices today in trade and the general lack of content.

“We are not yet ready for 4K” is one of the phrases that the user hears most, and is probably still valid today. The game is deserving the candle, of course, and the experience visibly benefits from the increase in resolution, but not all devices today are capable of processing so many pixels simultaneously, especially when it comes to gaming and virtual reality. Let’s go into this article to explain what is the 4K, what are its characteristics and what does top LED TV brand in India can offer you?


4K, also known as ultra-high definition LED TV, is a resolution capable of representing four times the pixels of a Full HD screen. So think of four Full HD screens positioned close together, to form a rectangle, and you’ll have the 4K.

It is so much sought after because it allows displays or TVs to increase their level of clarity and clarity of representation significantly. A 4K screen offers a resolution of 3480 x 2160 pixels, respectively for horizontal and vertical, with a classic 16: 9 format. The Full HD resolution consists of 1920 x 1080 pixels for a total of 2,073,600 pixels on the screen. If we repeat the same account for 4K, however, we have 8,294,400 pixels in total on the screen, which corresponds precisely to four times those that can be represented by Full HD.

The resolution of 4K is also often referred to as 2160p, in the same way, that the synonym of Full HD is 1080p, thus referring to the number of pixels on the vertical axis. The “p” stands for “progressive” and is opposed to interlaced mode, the difference of which, however, goes beyond the scope of this article. However, it is suffice to say that there are two ways to send frames to the screen, and the progressive one is qualitatively better.

It must be said that 4K can only be appreciated under certain conditions: the viewer must be at a distance from the display so that you can understand the higher pixel density. In short, the closer you are, the better the most top qualities are perceivable definition.

It is not possible to establish a precise distance, as it also depends on the diagonal of the screen: in any case, the visual experience improves with the increase of the diagonal. Indeed, on small displays, the 2160p is struggling to show off its benefits. Many of the PC users, for example, agree that a 4K computer monitor should be at least 32 inches so that all improvements can be noted, a theory that is reflected in practice. On TV, usually placed at a distance of greater vision (from the sofa/bed to the TV) even 40 inches could be few to benefit from the resolution in 4K, better to point directly to 55-inch models or more.

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