As the 4K TV market grows and evolves, new standards and design trends for these popular devices are also emerging. One of these newfangled trends is definitely curved screen TVs, which have caused multiple debates among consumers, tech observers and manufacturers, namely, the same question is constantly being raised - “Which is better, curved screen TVs or classic flat screens?” .

If you also asked this question, then I want to please you that you will find the answer to it in this article. On this page we have outlined all the main arguments, problems, factors and technically important aspects regarding curved and flat screens, and also considered all the pros and cons, doing it objectively, competently, tastefully and without a bunch of technical terms.

And if you are in doubt and cannot decide what kind of screen your TV should have, then I can definitely say that after reading the article, your desires will be more clear.

So, let's begin.

Aesthetics

The first and most important question that worries a buyer choosing between a curved and flat screen TV is an aesthetic question - “Which TV will look better, cooler, more fashionable and more beautiful in my apartment?” Right? Come on, this is really true - “Garson, wrap me the one that’s prettier!”

If we don’t touch functionality, but talk specifically about visual appeal, then I would say that TVs with curved screens look more impressive, unusual and futuristic than their flat counterparts.

Of course, it may be that curved screens in a few years will seem like nothing more than a strange fad if manufacturers suddenly decide that consumers don't need "curvature", however, now TVs with curved screens look very cool.

There are a couple of pitfalls:

• First, curved screen TVs are bulkier and bulkier, not only because of their shape, but also because of their slightly wider profile than flat screens. As you understand, such a device can hardly be called compact;
• Secondly, curved TVs are a real problem for people who decide to hang the device on the wall. Well, as a problem, maybe not a problem, but certainly not an ideal part of the interior according to Feng Shui. Unlike a flat panel, which can be hung on the wall and become invisible when viewed from the side, a curved TV creates a bulkier structure, which is not to everyone's taste.

To sum it up, I would say that aesthetically it makes more sense to buy a curved TV if you are going to place the device on a table, and a flat one if you want to mount the TV on a wall.

Immersion, or why size matters

This is perhaps the single most controversial and debatable argument that is used in favor of curved TVs, because this supposed characteristic is used by manufacturers to justify the curved design itself and, as a result, a higher price for the device.

This argument argues that a curved screen offers a higher level of immersion for viewers, which slightly expands the perceived amount of screen real estate for the TV diagonal. Combined with resolution high definition, a curved screen should create a feeling of greater depth and immersion.

Unfortunately, this is true only in the general sense of this statement. For example, a 60-inch curved screen offers slightly more screen real estate than a 60-inch flat screen. That is, if the screen is curved, it will have a slightly larger actual diagonal, about 0.8-1 inch.

As a result of this small extra space, the field of view for a curved screen is slightly increased compared to a flat screen of the same diagonal. Field of view is the degree of viewing for a person sitting 2.4 meters from the screen. Thus, it turns out that the field of view for a 60-inch TV is greater than that of a flat-screen TV with the same diagonal at the same distance, by less than one degree. To be more precise, 29.00 versus 29.48 degrees.

In general, in practice it turns out that the vaunted immersiveness of curved screens does not have such obvious advantages over flat displays. Yes, many movie theaters have been using curved screens for years to create a more immersive experience, and it works. Do you know why? Because size matters! On screens with a diagonal of several meters, there is indeed immersion, but on screens with a diagonal of 40-65 inches, unfortunately, you are unlikely to see the difference in the image between a flat and a curved screen.

Viewing angle

Screen curvature may affect viewing angles. Unlike the curved screen of a commercial movie theater, which places all viewers within the ideal viewing angles of the giant curved screen, a typical consumer curved screen TV measuring 55-70 inches diagonally effectively reduces the ideal viewing area in front of it when the eyes are positioned more than 35 degrees in any direction. from the sides from the center.

In other words, the actual ideal space and viewing angles of a curved TV may be less than that of a flat screen TV. Anyone unfortunate enough to sit and watch TV at an angle greater than 35 degrees from center will be viewing the picture from a bad angle. This can not only be annoying, but also cause unnecessary strain on the eyes as the brain tries to compensate for defects in the image.

On the other hand, the larger the screen size of a curved TV, the greater its ideal viewing angle. TVs from 70 inches are already more comfortable in this regard.

It should be noted that with a slight offset from the center of the screen, curvature can indeed have a positive effect on the dimensionality, but this does not compensate for the disadvantages that were described above.

I would like to say that there is a type of TV in which the curved screen does not affect the viewing angle limits, and does not lead to color fading, as well as to a decrease in contrast, which is so noticeable in LCD screens. All these disadvantages are not present in OLED displays, and therefore curved TVs with such displays look much better than TVs with LCD displays.

Reflection

Reflection in any TV, regardless of whether it has a curved or flat screen, is determined by the level of gloss on the screen, and not by the curvature. Glossy screens will have reflection in any case, even in a dimly lit room. To get rid of reflection completely, the screen must be matte.

Bright TV screens with good color gamut, contrast and brightness are less susceptible to reflection effects, and it makes no difference whether the screen is curved or flat. But it's still worth noting that on curved screens the reflection is stretched out a bit, thus taking up a little more screen real estate than on a flat screen.

An excellent solution to this problem is to position the TV correctly so that there are no bright light sources in front of the screen. And in general, it would be better to watch TV in dark lighting, be it a TV with a curved screen or a classic flat one.

Advantages and disadvantages

This chapter will help you a lot when choosing a TV if you are still unsure whether you want a flat or curved one.

Pros:

• Small (very small)immersiveness. On a curved TV you won’t get the same effect as in a cinema, but it’s still there, albeit in a very small percentage. And, it’s worth noting that as the screen size increases, so does the level of immersion;
• Enhancing depth. There is clearly something to give a plus here. The depth created by a curved screen, especially with displays larger than 65 inches and additional picture quality technologies such as OLED, can really enhance the viewing experience, especially in 3D;
• Increased field of view. As we said, the field of view is indeed wider. Even if only a little, but still this effect is there;
• Improved contrast. Since the best 4K TVs, such as LG's OLED and Samsung's top-of-the-line models, have curved screens, curved screens can be said to have excellent contrast. But this point is quite controversial, because the same technology can be applied to flat screens;
• Appearance. TVs with curved screens look really cool, and you can’t even argue with this advantage. Yes, they have their drawbacks and can be a little obtrusive when mounted on a wall, but they still look damn good - striking, elegant, sleek.

Minuses:

• Increased reflection. The curvature of the screen slightly increases the size of the reflection;
• Limited viewing angle. A curved screen reduces the viewing angle, especially for TVs with a diagonal of less than 65 inches;
• The ideal picture is observed only from the center. Watching a 4K TV from outside the center corners will ruin the picture quality. This also applies to flat screens, but on curved ones this problem stands more sharply;
• Terrible for wall use. Unlike an unobtrusive flat screen, a curved one looks more voluminous and bulky;
• Size matters. In order to really feel the benefits under which curved screen technology is promoted by manufacturers, you need to buy a TV with the largest possible diagonal. And considering that these models are much more expensive than their flat counterparts, such a purchase will hit your pocket very hard;
• They are expensive. A TV with a curved screen costs an order of magnitude more than its flat counterpart, with the same screen diagonal and the same specifications. Manufacturers charge prices solely on curvature, which is very annoying.

Price/benefit and our final word

As you've probably guessed, we're not fans of curved screens. For the most part, this technology creates more problems than it's worth, and the few benefits don't outweigh the benefits. large quantity objective disadvantages. In addition, such TVs are much more expensive than their flat-panel counterparts. Considering weak sides curvature, we are not sure that the price of such TVs is justified.

On the other hand, fans of manufacturers such as Samsung, LG and Panasonic have virtually no choice if they want to purchase a flagship, because everything best models Available with curved screens.

This factor, in part, creates a false impression among potential buyers that best tvs, these are TVs with curved screens. They see that the manufacturer has announced the next flagship, and this flagship has a curved screen, and the consumer begins to think that curvature is cool.

To summarize, I would like to say that the curved screen does not do as much for the TV as we would like, not providing the user with what he expected when buying a curved TV. Yes, it slightly improves the viewing experience, but just a little, and only by big screens. But if you're crazy about appearance such TVs, or you just want to be in trend, then go ahead.

17 Sep 2016 25293

Discussion: there is 1 comment

Bent TVs certainly look cool, you can’t argue with that!

Answer

Manufacturers, regardless of the importance of the brand, are looking for more and more new ways to increase their share in this growing market.

The situation with the promotion of curved TVs is somewhat reminiscent of the “3D revolution,” when only the laziest manufacturer did not focus on supporting this technology in their devices. Fortunately, today the hype around glasses-based 3D has died down. And manufacturers remember the presence of this function as the last thing.

The main task associated with curved screen and which has given rise to a number of debates among viewers, experts and manufacturers, is posed as follows: are curved TVs more advanced than their flat counterparts.

In general, it is incorrect to call a curved TV (monitor) curved. All because of the notorious literal translation of the foreign expression curved. All belonging to this class modern models - concave! Surely many readers have seen an era when in the living room there was a hefty TV (monitor) with a cathode ray tube, the convex surface of which played the role of a screen.

Curved screens are also used in cinemas. But in these entertainment venues they serve a specific role. Firstly, as you know, the lens of a film projector is almost a point source of the image. The beam of light from it is much better projected onto a concave screen, but not onto a flat one. Otherwise, so-called pincushion distortion may occur at the edges of the picture. Secondly, a curved screen in a cinema expands the field of view, because in proportion the distance from it to the viewer is very small.

Curved computer monitors are popular among gamers; they help to completely immerse yourself in the virtual world, expanding the viewer’s field of view - he finds himself in the very center of what is happening.

Concave TV (monitor) screen as a design solution

Whatever one may say, a TV (monitor) is not only a technical device, but also an interior item. The first and most basic question to consider when choosing either a curved 4K TV (monitor) or a flat model relates to the area of ​​aesthetics: straight or curved screen - which looks better from your point of view?

Well, in this area, a monitor with a curved screen looks more modern, if not futuristic. Over time, they may seem like some kind of quirk of the designer, but for now, among the top models there is always a concave screen. Take for example Samsung. Almost all of the new 2017 models of these beautiful curved TVs, like the famous Samsung KS9800 Curved SUHD TV, are surprisingly thin and it's hard to argue with how elegant they look.

So two very important points:

1. The concavity of the screen usually means a little more bulk compared to a flat TV in terms of geometric thickness equivalent. It may not be a problem, but not everyone wants an intrusive TV profile.
2. Curved 4K TVs are completely uncomfortable to hang. The flat-screen panel can easily be hung on any vertical surface, as if it were a painting or a giant photo frame. In newer models, there is the possibility of wall mounting, but they look strange on the wall due to a noticeable protrusion.

Viewing Angles

Among other things, curvature can in some way worsen viewing angles. Unlike the curved screen of a large movie theater, in which the entire audience easily fits into the ideal viewing angles of the screen's scaling curve, a typical household 4K concave TV (monitor) ranging from 55 to 70 inches diagonally effectively reduces the ideal viewing area in front of it to just 35 degrees from the center in each direction!

Optimal point

However, it is not always possible to watch TV (monitor) alone. If the family is large, then, as a rule, a sofa a couple of meters wide will be completely occupied. And this means that only one person will sit in the correct position. Others will look at the concave screen from different angles. Thus, the width of the 55-inch model is only 120 cm. Flat-panel TVs also have this problem. But we are identifying precisely the advantages and disadvantages of concave devices.

Coming back to size again, the larger a curved 4K UHD TV, the physically larger its ideal viewing area. A 70-inch 4K UHD TV in this case is the minimum acceptable option to avoid potential eye strain caused by watching a TV (monitor) with a slight (even) deviation from the center. But remember that a 70...85-inch TV (monitor) with a curved panel will not create anything even remotely reminiscent of the immersion it claims to have.

Distortion and reflections

No one will argue that glossy screens reflect even weak light, while matte TV screens have no reflections. The law here is simple - the brighter and more contrast the screen, the less noticeable the reflections on it. And here curvature or concavity has nothing to do with it. Very good example This is due to the image quality on the flat, but absolutely cool 4K TVs Sony XD94 and Sony XD93.

The curved surface of the screen changes the angle of reflection of light rays. Glare is reduced. Thus, concavity sets the focal point at a distance of half the radius of curvature from the center of the screen. If a person sits further than this focal point, the reflections become blurred.

In terms of distortion other than that caused by light reflection, some users have reported a sort of bow tie effect when viewing certain types of content on a curved screen. The top bar above the image (in letterbox mode) may appear to be stretched upward towards the edges of the TV, although this effect largely depends on the viewing angle. Viewing a 4K UHD TV (monitor) with a curved matrix from the center usually does not cause noticeable distortion.

pros

1. Minor (very minor) improved immersion: nothing like cinematic immersion, but an extra dose of degree and extra inch screen diagonal, described above, technically complement the overall viewing experience.
2. Depth increases: In this aspect, we must pay tribute to curved 4K TVs, especially those with a diagonal larger than 65”. Some brands like Samsung, which makes most curved 4K TVs, even add depth-enhancing technology to further enhance the 3D effect by playing with contrast levels across the screen.
3. Wider field of view: Minor effect, but real.
4. Image: there is nothing to argue about here. They may have their flaws, they may be obvious from the wall, but they look cool. Still cool...

Minuses

1. Increased reflections: The curvature of the screen definitely creates some sort of effect mirror reflection. This means that the light reflected on the display covers an even larger area of ​​the image being viewed.
2. Viewing angle limitations: The curvature of the screen significantly narrows the viewing angle of these TVs, especially for models with small diagonals.
3. Most best view centerline only: viewing any curved 4K TV (monitor) that deviates from the centerline is annoying as the image quality decreases at a smaller degree of deviation.
4. Difficult hanging: Unlike a flat screen 4K TV (monitor), even mounted curved models look awkward, protruding from your living room wall.
5. Too much great importance gains diagonal size: To reap the benefits that curved TVs offer, you need to pay for maximum size. Not every consolidated home budget is ready for such expenses. Although in Lately prices are equalized.

Results

The conclusion suggests itself. When purchasing a large 4K TV, you can consider a curved screen. Will it become more bulky? Yes, 77-inch TVs are already gigantic, even in a flat version.

TV manufacturers have once again tried to convince us that a concave TV (monitor) is what we have been missing for so long. In certain (rather difficult to achieve) conditions this type devices can actually be more profitable than their flat counterparts. But this applies to models with 4K resolution and large diagonals. Also, a concave TV (monitor) is an egoist’s TV (monitor), because to achieve a better picture you need to be in a comfortable viewing zone. That is, alone.

Audio and video equipment manufacturers regularly announce the introduction of new technologies that improve the performance of their products. Unfortunately, not every know-how, not to mention significant benefit from the point of view of using the equipment. Nevertheless, achievements that change the mass consumer’s understanding of the properties of multimedia equipment appear, and, as a rule, their announcements are accompanied by lavish advertising. Three years ago, it was in this style that a curved TV screen appeared on the market, the advantages of which were actively replicated by marketers from LG, Sony and Samsung. By the way, even today, when a whole segment of models with a non-standard display has formed, the list of manufacturers participating in it is not so wide. And the more attractive the available offers.

with concave screen

Before moving on to considering the pros and cons of an innovative solution, it is worth taking a closer look at its features. The main difference is the changed radius of the television panel - in other words, the shape of the screen, which is concave in the direction opposite to the viewer's position. However, it cannot be said that this principle of presenting a “picture” is truly revolutionary. It is, in particular, used in the design of theater stages and movie screens. And it is quite logical that correcting the shape of the projector display ultimately made it possible to implement a curved TV screen. Advantages and disadvantages this decision still not so clear. If in a cinema the effect of a concave screen is obvious due to its large size, then in the case of television displays the advantages are found only in the case of a large diagonal. There are other nuances of such models, familiarity with which will allow you to form a more complete opinion about the new technology.

Deep dive

The curved plane allows you to cover a large area of ​​​​the field of view, so it may well create a feeling of deep immersion in the atmosphere of the film. For example, a flat screen with similar dimensions due to its shape will not be able to provide the same coverage. However, users note the minimal increase in visibility provided by the curved TV screen. The advantages in this indicator are most pronounced only in the case of large displays - at least 55 inches. However, a flat screen with this format can provide good film penetration. There is another trump card on the side of concave TV panels - this is high-resolution fusion in the 4K UltraHD format. Thanks to this technology, a truly non-standard image has the advantage of wider coverage.

Contrast and viewing angles

In this case, it is worth noting OLED technology, the carriers of which are currently TVs with concave screens. The advantages of this combination are expressed in two factors - increased sharpness and contrast, as well as expanded viewing angles. Actually, these are related design features, which in practice give the effect of the integrity of the “picture” and the feeling of a larger screen area without the usual angularity characteristic of traditional models.

According to the manufacturers themselves, a concave screen can increase contrast in the side areas. This will be especially evident in the perception of a viewer sitting close to the concave panel. It’s even better to use a large monitor for this purpose, since the distance to it will be even less - about 45 cm. This advantage of a curved TV screen can also be observed in models with a diagonal of 27 inches. Further, the larger the format, the higher the quality of visual perception in terms of contrast and smoothing of side angles.

Visual increase in screen area

Under certain conditions, the curved shape of the screen can actually create the feeling that the TV has a larger area than a flat model with the same diagonal. However, it is possible to achieve a significant disclosure of this factor only if the viewer is located at the optimal point in relation to the place where the curved TV screen is located. The benefits of increasing the perceptual area of ​​the “picture” are the most effective tool for marketers. At the same time, it cannot be said that this is a fiction and a spinning myth. If positioned correctly, the viewer will feel the difference, but it will only be noticeable if a large screen is used.

The need to be in the center of the screen

This is not a requirement at all, but in order to fully experience not just the advantages, but the peculiarities of eye contact with the concave screen, you need to be positioned strictly in the center of the TV. In this case, you will notice the absence of distortion and glare, as well as the visual expansion of viewing angles that characterize a curved TV screen. The advantages in this case can only be considered conditionally, since they are achieved only during a viewing session alone. Most of the advantages of a concave screen are not revealed in any way to viewers who look at the display at an angle - that is, sitting at the edges of the sofa.

High price

It is not surprising that the new development is more expensive than its less technologically advanced counterparts. However, experts have not yet observed any prerequisites for reducing the cost of such models, which is also natural in the household appliances market. Today, models with a diagonal of 40-55 inches can be purchased for an average of 70-100 thousand rubles. And this is not the limit, since all the accompanying technological additions in the spirit of the mentioned 4K format increase the price tags for which TVs with curved screens are sold by several tens of thousands. Are they needed for that kind of money? The answer in each case will be individual, but models with a flat screen for the same 100 thousand rubles. They also offer many opportunities for a pleasant movie show. And this applies not only to the large one, which can be 70-80 inches. The traditional form factor continues to expand into more familiar areas, including interactive and communication capabilities.

Does it make sense to buy a TV with a curved screen?

The bend of the television panel, despite all the efforts of marketers to fill its existence with meaning, in essence, does not yet give the viewer anything fundamentally new. For example, image quality in the most advanced versions increases to a greater extent a high resolution UltraHD rather than concave design. As for increasing the viewing area of ​​the “picture,” the increase will be insignificant, and you will have to overpay several thousand for it, and that’s at a minimum. In this case, why not just buy a regular model with a larger diagonal, which will certainly expand the area of ​​visual perception. Considering all of the above, you might wonder why curved TVs are needed? First of all, we cannot discount the desire of manufacturers to make money on a new fashion. But if you look at such a model from a consumer’s point of view, it may well compete with large-format flat screens for home theaters. Although in this context, prices for concave models do not correspond to their advantages.

Conclusion

It would be wrong to say that the creators of the new concept do not offer the consumer anything useful at all. At this stage of development of the segment, the advantage of a curved TV screen over a traditional flat panel is not yet very obvious, but it is there. By at least, the merits of this solution are confirmed by mathematical and geometric calculations. Really, what good are they if the viewer himself does not feel noticeable improvements during the viewing process? One way or another, there are opinions that in the future it is the concave screen that will survive as more rational and optimized.

After spending the last couple of years searching for the perfect screen shape, electronics manufacturers have settled on what is widely considered to be the screen of the future - with a curved shape and ultra-high resolution. Such TVs have already appeared in the lines of top brands such as Sony, LG and Samsung. We decided to weigh the pros and cons and put together twelve arguments that will help you decide which TV you need.

Arguments for":

1. Full immersion

When you look at the real world, you don't feel it is flat. The rounded edges of the screens connect peripheral vision, which gives the brain a signal that what is happening is real.

2. Increased field of view

A TV with a curved screen can provide your eyes with much more detail than a traditional flat screen. Coupled with 4K resolution, this makes it possible to enjoy a picture of unprecedented clarity and depth.

3. Increased sharpness

Curved screens adapt to natural viewing angles more than others, so the edges of pictures will appear much sharper on them than on regular monitors.

4. Depth of field

The first thing many people say when they first see curved TVs is that the picture is as saturated as possible with volume. This happens because the curved screen shows the picture in different planes.

5. Increased contrast

The distribution of pixels on the curved TV screen is uneven, allowing for unprecedented levels of image contrast.

6. Large viewing angles

Even though a curved TV is best viewed sitting directly opposite you, even from an acute angle you will be able to see more than with a flat TV.

Arguments against":

1. Geometric distortion

The counter-argument for the sixth point in the pro block is equally true. When you change the viewing angle, the image on the screen begins to look unnatural and distorted.

2. Landing problem

Many curved TVs can only reach their full potential if you sit directly in front of the screen. As soon as you move a little to the side, the completeness of the picture begins to be lost and distorted. Not the most pleasant fact, especially for a family that is used to gathering around the TV in the evenings.

3. Glare

Curved TVs suffer from glare more than flat TVs. This occurs because the concave surface collects more reflected light. Therefore, a bright chandelier opposite the TV can spoil the impression of a technological innovation.

4. Price

On this moment Curved screen TVs are much more expensive than regular ones. For many, this fact is decisive when choosing. Of course, technological innovations will begin to gradually become cheaper as they penetrate the market, but for now you will have to pay a tidy sum for such a TV.

5. Wall problems

Curved screen TVs look great on a stand or chest of drawers, but they are not designed to hang on a wall. Of course, this problem may seem like a forced sacrifice for the sake of progress, but it exists and has not yet been solved.

6. Size matters

A crooked screen has the right to life only if its diagonal is large enough. For small screens, curvature will be completely unnecessary and will not allow you to feel the benefits.

About three years ago, another new product was presented to customers - a curved monitor. That is, a monitor that has a concave surface directed in the opposite direction from the viewer.

Almost everyone observed such image presentation in theaters, and therefore there is nothing particularly revolutionary in the new design of monitors, but it is better to determine and weigh all the advantages and disadvantages in advance.

It’s already difficult to surprise us with technical innovations, but such a curved miracle attracts a lot of attention. Moreover, the screen has one very peculiar property: the side parts and the central part are located from the viewer at almost the same distance.

It seems that concavity can be considered an undoubted advantage. But... this is also a drawback, because there is only one such point, but what about the rest of the audience? Or do we follow the principle of one curved screen for each viewer? Because indeed, when positioned at such a point, viewing becomes most comfortable.

Curved monitor - pros and cons

All viewers who participated in viewing on a curved screen confidently declare the possibility of deep immersion in
broadcast picture.

Moreover, the image, flowing around the audience, guarantees the presence of the effect of presence in the events unfolding on the screen.

This advantage can reach its maximum manifestation with large displays - with a diagonal of more than 55 inches.

Another plus is that many people have the opinion that they see a 3D image, which is caused by the depth of the image projected on the screen. In addition, color rendition and contrast, when compared with cinema screens, do not lose their clarity and brightness. An additional advantage is the extended viewing angles.

It is worth noting that with the curved shape of the screen, it seems that the area of ​​the curved TV screen is larger than that of a flat model with the same diagonal. But you can only notice this when you are at the optimal viewing point.

And one more thing - for those who like to show off technical innovations, such an exotic monitor will be a definite plus.

Well, the main disadvantage, as mentioned above, is that such a monitor with a curved screen has only one comfortable zone, so other viewers will watch what is happening on the screen from awkward viewing angles.

A significant disadvantage is also the cost. So far, unfortunately, screen curvature is much more expensive than a more familiar flat image, and therefore before purchasing it is worth thinking about how much you need to have just such a monitor.

Moreover, experts cannot yet find opportunities and prerequisites for reducing the cost of their production. High price dictated by new technologies and the 4K format. But a flat screen with a similar format provides no less various possibilities for the viewer.

To buy or not to buy?

This, apparently, everyone will decide for themselves individually. But so far there are no objective prerequisites indicating that a curved screen is much more better screen flat.

After all, the image quality can be high even on a flat screen with UltraHD resolution. Why then is the exotic curvature of the structure needed? It is more likely that this is a marketing ploy to promote a new product.

But whether or not to buy a curved monitor is something everyone decides for themselves, for which it is enough to analyze all the existing pros and cons.