HD, Full HD, 2K screens, Plus versions, what does the resolution of my mobile mean?

HD, Full HD, 2K screens, Plus versions, what does the resolution of my mobile mean?

Smartphone screens are one of the hardware elements that we must take into account the most when choosing a device that more than meets our needs. Therefore, it is not surprising that manufacturers are increasingly striving to offer panels with better features, among which of course is the resolution. In fact, it is perhaps one of the most important requirements to take into account within the specifications of a screen, since the quality of the content reproduced on them will depend largely on it.

Sometimes, due to simple ignorance, the size of the screens tends to be confused with the resolution, without this necessarily having anything to do with it. For example, two screens 5 inches in size can have different resolutions and consequently, offer us completely different results. To try to better clarify this issue, we are going to see simply what is screen resolution and what are the different types that we find in today’s smartphones.

What is screen resolution?

First of all, we are going to clarify the concept of resolution well before listing the different existing types. The image displayed by a screen is divided into pixels. To understand it well, a pixel is the smallest part in which an image can be divided. With this clear concept, it is understood that the resolution determines the number of vertical and horizontal lines formed by pixels that a screen can display.

Pixels

If, for example, it is a large screen but with a low resolution, it will have fewer pixels per row and columns, which translates into a rather poor image. On the contrary, a normal-size screen with higher resolution will delight us with excellent image quality.

Now, so that we understand it with the figures that we normally see in the specifications of a phone (or any monitor in general), a resolution of 1280 x 720 pixels indicates that the screen shows 1280 pixels in horizontal line and 720 in a vertical line.

Resolutions Comparison 4k 2k Fhd Hd

HD resolution (1280 X 720)

Before starting to list the resolutions, it should be added that the ones we are going to see are not all those that exist or have existed but, yes, those that we can find in the current mobile market. Returning to the matter, we go with the lowest resolution that we find today: HD resolution. Even today it is possible to find phones and tablets with HD resolution

Known as HD for its acronym in English High Definition, HD responds to a resolution of 1280 x 720 pixels. It is a resolution very established in the market that offers satisfactory results but that today we no longer find in too many new terminals, especially in high-end.

Full HD resolution

This is the resolution that we find most lately in the phones that have been arriving on the market despite the invasion of extra-long panels, and that allows us to display 1,920 x 1,080 pixels. This type of resolution initially started with televisions but leaped smartphones in 2012 with the HTC J Butterfly.

Since then, Full HD resolution has been established in the entire high-end, medium-high range and it is not too difficult to find it also in very cheap terminals. Despite the spread of this resolution, manufacturers have been seduced by the next level for some time: QHD resolution.

RESOLUTIONNUMBER OF PIXELS
HD1280×720921,600
FULL HD1920×10802,073,600
UHD3840×21608,294,400

QHD resolution

This resolution, also called 2K, is capable of displaying 2560 x 1440 pixels. For a while, it has been the highest resolution that we found in high-end devices such as the Samsung Galaxy S, although it was not long before the replacement. And it is that the market not only welcomed 4K screens by Sony at the time, but it has turned towards Plus models with the arrival of frameless mobiles. Almost all catalog leaders are ditching pure QHD to embrace Plus resolutions

The QHD resolution, also called 2Kor 1440k, is still limited to the most cutting-edge mobiles, although in the vast majority of cases it is accompanied by the “+” symbol at the end since the normal today are mobiles that abandon the 16: 9 classics and opt for a panel with a longer aspect ratio.

The “Plus” resolutions such as HD +, FHD + or QHD +

Phones Without Frames

A significant fact that has been taking place in the mobile ecosystem for months is the arrival of Plus resolutions. It is no longer strange to see that this or that mobile has an HD + screen, or FullHD +, and even QHD +, or 2K +. This surname is adopted by the new trend of frameless mobiles with extra-long panels, those with an 18: 9, 19: 9, 20: 9 aspect or all kinds of variations and that in a way have left 16: 9 in the oblivion.

With this new screen aspect ratio, the panels are stretched lengthwise and that new space is taken up with new pixels. For example, on a 2: 1 screen, that is, two measures high by one width, the resolutions or the number of pixels must be adapted to cover the highest height of the panel. Hence, an HD + panel has a resolution of 1,440 pixels high by 720 pixels wide. Same width, but stretched high: from 1,280 we go to 1,440, and we already have the addition. The Plus resolutions are children of the 18: 9, 19: 9, and company screens. The tallest screens on the count, with more pixels, added

With the FullHD + panels, it is the same, and the 1,920 pixels become 2,160, to accompany the 1,080 pixels wide. The same happens with the QHD + or 2K +, where we now have 2,880 x 1,440 pixels. When it happens with 4K +, then it will be your turn, we will get screens with resolutions of 4,320 x 2,160 pixels. Something curious is that the screen is stretched, but the density is maintained because we “complete” the panel with the missing pixels.

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With the advent of notch and screen perforations, screens have all gone from having an identical 16: 9 aspect ratio to having a variation of it, which also causes the resolution to vary slightly. As a general rule, HD +, FHD +, QHD +, and others are considered to be those panels that have a little more resolution than their equivalent without the last name “Plus”.

Do we need so much resolution on a mobile?

One of the justifications for these higher resolutions on phone screens is found in the development of virtual reality technology, where we put the mobile within an inch of our eyes. Is such a level of resolution interesting if we are not going to give it that use? That will depend on each user, but although a screen with a higher resolution than another of the same size will offer us a greater level of detail, our retina will not be able to appreciate the difference between the two (as long as we speak of the same size) because its ability to perceive the details is not unlimited. The inclusion of higher resolutions on phone screens is justified by the development of virtual reality technology

Two other points to take into account in light of the arrival of UHD in smartphones is that this technology involves a greater consumption of resources, so that both performance and autonomy may be affected. In that sense, those manufacturers that intend to implement it will have to provide the terminal with features that are compatible with a user experience to match.

Categories: Mobile Phones

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