Review-explanation: what is the difference between AMOLED and IPS displays. LCD vs AMOLED. Which is better

Technology plays an important role both in the life of an individual and the entire community as a whole. Their development and implementation make it possible not only to improve the characteristics of manufactured products, successfully coping with competitors, but also sometimes cause a real sensation. Just such an event was the presentation of new technology by the South Korean company Samsung, which was one of the first to introduce innovations in the production of displays for. The new generation of screens is not only HD super amoled advanced technology that improves the performance of communications media, but also the prospect of their further development.

Basic principles of technology

Super amoled from Samsung is a technology based on the use of organic light-emitting diodes, which are used as light-emitting parts, thin-film transistors that control them, and are presented in the form of an active matrix.

To produce new screens, two technologies can be used, the difference of which lies in the pixel structure: matrix plus and PenTile. In super amoled plus, the matrix has a traditional subpixel structure (red-blue-green) and an equal number of them.

When implementing PenTile technology, an RGBG scheme is used, which has four colors (red-green-blue-green). The super amoled plus matrix has approximately 50% more subpixels than PenTile, resulting in better image quality and clarity. However, Samsung decided to first use the PenTile matrix, since it is more durable than plus. This is based on the degradation of blue subpixels, of which there are much more in the plus matrix and therefore it fails faster. However, further developments have made it possible to use super amoled plus.

The shortcomings of the selected matrix are compensated by the manufacturer in the form of a larger screen made using super amoled technology.

Advantages and disadvantages

Optimal organization of production and modernization of the technological process through the introduction of developments make it possible to produce HD super amoled screens, the cost of which is much cheaper than their analogues. They are distinguished by high resolution and small thickness, which has almost no effect on the linear dimensions of electronic devices.

A display made using super amoled technology using PenTile or plus matrices is also characterized by the following advantages:

• Reducing energy consumption of electronic devices by 20%

One of the main problems that is inherent in all gadgets and various means of communication is the ineffective consumption of battery power. Super amoled technology extends their operation time, including due to the presence of LEDs, thanks to which the display backlight is not required.

• No distortion in the perception of visual information in bright sun

Now you don’t need to cover the display with your hand or any objects: the new development allows you to read texts and play various games even in direct light, without fear of glare.

• Wide viewing angle

It is 180⁰, but the image does not reduce its clarity and does not become blurry. This allows you to view graphical information without changing the display's tilt and provides excellent image quality.

• Increasing screen brightness

In addition to the clarity of the lines, super amoled technology with both the plus matrix and PenTile allows you to obtain brighter, rich colors and shades, and color rendering has increased by 30%.

• Contrast

When using an HD super amoled screen, there is no “blur” effect during video playback, and clear boundaries between different image formats and in the transition from color to color are visible.

• Reliability and durability

The new displays produced by Samsung do not have air cushions, so mechanical strength and service life are increased.

The disadvantages of HD super amoled include the predominance of cold shades when transmitting images and the short service life of LEDs. On large displays of this type they fade out no later than 2-3 years after the start of use, and on mobile communication devices - after 5-10 years. But since during this time the means of communication become obsolete, this period of operation of HD super amoled is considered acceptable.

Scope of application

Most often, the creators of new developments seek to implement them to improve the characteristics of their own products. So Samsung in February 2011 launched the production of electronic devices with a new screen, which turned out to be the Samsung Galaxy S II series smartphones. It was through their example that consumers felt all the benefits of new technologies.

Development prospects

A special feature of the process of creating HD super amoled displays is the ability to complement their device without changing all stages of production, but only modify it, adding layers with new characteristics. The latest improvement consists of the following layers:

• Touch film
• A protective covering to which low voltage wiring is attached. It is transparent and glued to the previous one
• Layer with LEDs responsible for the image
• Thin Film Transistors
• A backing layer that can be made from a variety of materials

It is on improving the last layer that all efforts of developers are directed: these developments make it possible to create flexible displays from Samsung with the planned characteristics. In turn, flexible screens will help radically change the way mobile electronic devices operate.

A fairly established product on the IT technology market are flagships with amoled monitors.

AMOLED display

Amoled technology is the brainchild of the world famous company Samsung. The invention has won the love of consumers, thanks to which the manufacturer is constantly trying to improve it.

First, let's figure it out, amoled display, what is it? This is an abbreviation of capital letters, which when deciphered look like this: Active Matrix Organic Light-Emitting Diode.

A technique that allows you to create monitors for televisions, mobile phones and computers.

Its basis is the use of organic light-emitting diodes as parts that emit light, and an active matrix, which consists of thin-film transistors.

An interesting technology is the way to create black.

When it is necessary to generate it, the LEDs simply stop working, and this makes it possible to create a truly rich, deep black color. When it is present on the monitor, there is a decrease in energy consumption by the phone.

On the screen, all the pictures look much more attractive. Color rendition is bright and rich. Therefore, models hold the lead in the market along with IPS.

Phones with AMOLED display

Phones with amoled displays do not lose their relevance for quite a long time. They have gained their trust and now even practice installation in a budget model.

Users of such gadgets are satisfied with the color scheme provided by the developers and with the devices themselves as a whole.

Popular models with this screen include:

Pros of AMOLED

Of course, phones with such a display are very high-status. Among their advantages is the width of the screen, in which the corners are not bent and the picture is shown in full. Also, excellent contrast.

The monitor matrices are presented in very rich colors. Black looks ideal.

When you look at such a display, you get the feeling that the picture is not in it, but on the surface. According to consumer reviews, this increases the pleasure of using the gadget.

Disadvantages of AMOLED

Today, the quality of screens made using Amoled technology has improved so much that consumers simply do not find any negative aspects of the product.

One bad trend is still visible. The most negative thing is that health problems appear.

Even when viewing multimedia files for a short time, the eyes begin to tire, and over time, vision deteriorates. Eye strain causes loss of sharpness of vision.

The color pictures on the screen are very bright. Not every person can adapt to such eyeball tension. At first, I like the brightness, but it has a detrimental effect on vision.

There was no way for science to confirm such data. After all, you need to gather a certain number of people, conduct research and draw conclusions based on statistical data. We present information that only some users shared on the Internet.

Many of them wrote that after buying a phone with such a display, their eyes began to get very tired, and they had to buy special drops. Or one hundred percent vision has deteriorated greatly in a short time.

Among the disadvantages of this technology, we can also highlight:

1 You need to be very careful with your phone display. If you damage it somewhere and even the slightest air gets inside, the screen will instantly begin to fade. Within one or two days, your mobile device will become unusable due to the fact that the monitor will stop displaying altogether. From the point where the depressurization occurred, a black spot will appear and in a short time will grow to cover the entire surface.

1 The connections located under the screen are extremely unreliable. If there is the slightest mechanical damage, such as a crack, the monitor becomes unusable. He doesn't show.

Smartphones with AMOLED display

Smartphones with amoled displays have been present on the IT technology market for a long time. They are known to a large number of users and have managed to gain recognition for the brightness of their color reproduction.

Many manufacturers are increasingly turning to this method when creating smartphones.

Thus, Meizu Pro 6, Yota YotaPhone 2, Huawei Nexus 6P, Highscreen Bay, Lumia phones use Amoled screens in their models.

The Microsoft Lumia 950 Dual SIM models use a 5.2-inch diagonal display created using this development methodology. Customer reviews are the most positive.

Photos and videos can be viewed freely even in the strongest sunlight.

Highscreen Bay is known for the fact that, thanks to this screen manufacturing technology, it can convey even the smallest details in the image. This is due to the excellent quality of the AMOLED matrix.

The Meizu Pro 6 phone is also equipped with a Super AMOLED matrix. His pictures are bright and clear.

The Yota YotaPhone 2 model is equipped with a 5-inch screen and an AMOLED matrix.

Super AMOLED

The technology appeared in 2010. It is much better than its predecessor.

The benefits are noticeable:

• Even more brightness. The color scheme has become twenty percent more saturated.
• The viewing angle has changed. It turns 180 degrees and the advantage is that the image remains clear and high-quality, not only for the person looking at the screen located directly in front of him, but also for everyone else, at any distance.
• Energy consumption has decreased by twenty percent.

Energy storage is a constant problem for smartphones. It’s good if the phone’s charge lasts until the evening, or even less. So here's a new technique slightly increased the operating time of the device.

• The phone is now more durable. New models are manufactured without a built-in air cushion. This makes it possible to make devices much stronger, and accordingly their service life increases.

For example, when there is a lot of white color on the screen of a phone with the display in question, the energy consumed is twice as much. This doesn't happen in IPS phones..

When working with a black screen, the energy consumption indicators are approximately the same. During normal operation of the device, IPS also predominates in the energy charge.

For some it is more convenient, but when using a phone that has a built-in amoled display, the brightness goes through the roof. It's a little disturbing.

And with prolonged use, the eyes hurt and dry out. In IPS, with a more gentle color gamut, there are no such problems.

However, if you examine the phone's response speed to your manipulations, IPS phones respond much slower.

Its positive side is that the screen conveys more natural colors. But when photographing on the sunny side, the device clearly lacks brightness.

I was inspired to create this article by two things: numerous speculations by marketers and specialized journalists on the topic of screens; and a bunch of absolutely identical comment threads under smartphone reviews with absolutely identical discussions about which matrices are better. Usually, the hottest thing happens under reviews of Chinese phones with OLED screens. I’m tired of fighting windmills, communicating with each reader individually, in this material I decided to dot all the i’s and dispel numerous myths about modern screens, looking ahead I will say that the emphasis will be on the confrontation between IPS and AMOLED matrices. Most likely, most of you will not see anything new in what has been written; you will not receive sacred knowledge here, nor will you be stripped of your veils. I will talk about obvious things that neither bloggers nor journalists want to talk about. The guide is designed for adequate thinking people; convinced fanatics can go about their business.

Definition of the term “screen”

Before getting to the point, we need to define the term screen and clarify its functional purpose. Wikipedia tells us that a screen or display is an electronic device designed to display information visually. If we try to give a less laconic and more modern definition of the screen from the point of view of functionality and with an emphasis on consumer properties, it will turn out something like this: a screen is a device whose task is to display as accurately and in detail as possible all kinds of content and the user interface of operating systems and applications such how the authors intended them. Physical resolution is responsible for “maximum detail”, otherwise: the number of smallest screen elements (picture’s elements) or simply pixels (pixels), the higher the resolution the better, ideally it should be infinitely large. “As accurately as possible” are responsible for such parameters as: color accuracy and contrast, or the ratio of the lightest and darkest point on the screen. Secondary parameters that do not directly affect the accuracy or detail of information display, but affect the consumer properties of the screen, include: maximum brightness, picture distortion when the view deviates from perpendicular, reflectance, picture refresh rate, response time, energy efficiency and some others . Of particular note is such a parameter as color gamut - the most important parameter for professional monitors and practically meaningless for devices intended for consuming content. But it is the color gamut that has been the subject of much speculation by manufacturers of mobile gadgets in recent years. Let's clear up this murky topic before moving on.

What is color gamut and why is it the subject of much speculation?

You need to start with the fact that any image is encoded when captured and stored in the memory of a photo or video camera. Artificially created pictures and clips, as well as parts of the graphical user interface of operating systems and applications, are initially encoded in a similar way. In both cases, color information is represented using a color model - a special mathematical tool for describing color using numbers or, more precisely, coordinates. The most common is the three-dimensional RGB model, in which each color is described by a set of three coordinates responsible for one of the colors: red, green and blue; the displayed hue depends on the brightness ratio of each component. Modern screens are capable of displaying only part of the spectrum of colors and shades visible to humans; color gamut literally means how large this “part” is. Due to such limitations, a person is forced to create standards for representing the color spectrum based on the capabilities of existing screens. So in 1996, to unify the use of the RGB model in monitors and printing, HP and Microsoft developed the sRGB standard, which used the primary colors described by the BT.709 standard, common on television at that time, and gamma correction designed for monitors with cathode ray tubes. It is important to understand that such unification allows, albeit with some reservations, to guarantee that the creator and consumer of content on their screens will see approximately the same thing. Subsequently, the sRGB standard became widespread in all areas of content production, including the creation of Internet sites. Of course, there are other standards for representing the color spectrum, such as Adobe RGB, which has a much wider color gamut, but today the vast majority of content is encoded in accordance with sRGB.

What happens if sRGB content is viewed on a screen with a wider color gamut without adaptation? The coordinates of the sRGB space will be transferred to the coordinate system of the color space of such a screen, as a result of which colors will appear more saturated than they actually are, in some cases the shades will be distorted so much that orange will become red, light green green, and blue blue. Conversely, if content with a wider color gamut is viewed on an sRGB screen, the coordinate shift will cause the colors to appear less saturated than they should be.

We all know that the screens of most modern flagship smartphones have an expanded color gamut relative to sRGB, so how does this affect their consumer properties? If this is a smartphone or tablet on Android, then three options are possible. In the best case, the shell settings will contain preset color profiles, among which there is one that brings the space to the sRGB standard, an example would be MIUI or the shell from Samsung. But even in this case, applying profiles on the fly is impossible, and the user will have to choose between an expanded color gamut and correct color rendition. The second option is when the system does not have built-in profiles, but in the developer settings you can activate the sRGB mode, for example, this can be done on Google Pixel and OnePlus 3T smartphones. Unfortunately, the operating system GUI becomes faded when sRGB mode is activated, as it is coded according to the color gamut of their screens. In the third worst case scenario, the user will not find any profiles in the system and, accordingly, will not receive any choice; he will be left to enjoy oversaturated colors. But in personal computers running Windows and MacOS there is no such problem, since both systems not only support color profiles, but can also “on the fly” convert colors from one space to another, that is, regardless of what content and on what screen will be displayed, the user, with some reservations, will see the colors as the author intended them. A similar color profile management system is available in iOS. Manufacturers, either for the sake of beautiful numbers on the specifications page, or just for the sake of it, continue to install IPS and OLED screens with an expanded color gamut in flagship models, despite the fact that there is no need for this, since 99% of the content complies with the sRGB standard and the situation is unlikely to change radically in the near future. There are simply no tasks that such screens can perform in devices designed for content consumption. All this would make at least some sense if Google added color profile management to Android, as Apple did, but at least in 2017 we won’t see this. The irony is that the problem was created out of nowhere, and no one is in a hurry to solve it.

Liquid crystal screen: operating principle; advantages and disadvantages

Twenty years ago, most monitors and televisions were equipped with screens based on cathode ray tubes; they were soon replaced by liquid crystal displays or LCD (liquid crystal display), which over time received several branches of development and today there are three technologies for the production of liquid crystal matrices screens: TN, MVA and IPS, the latter, due to a successful combination of advantages and disadvantages, has become dominant in the mobile technology segment. The operating principle of an LCD is simple, some parts may vary depending on the manufacturing technology, but a typical matrix includes a backlight lamp and six other layers. The first thing behind the lamp is a vertical filter that polarizes the light accordingly. Behind it are two layers of electrodes with a layer of liquid crystals located between them; the voltage applied to the electrodes orients the crystals and they refract the light so that it passes or does not pass through the next layer - a horizontal polarizing filter. The last one is a color filter - red, green or blue. Liquid crystal screens are lighter, more compact and more energy efficient than their predecessors, but they also have a number of serious drawbacks, in particular low contrast and black depth, and even limited color gamut potential, which depends on the imperfection of the backlight. In addition, brightness and contrast may deteriorate if you look at the screen at a different angle.

Organic LED screen: advantages, disadvantages, PWM, Pentile

Relatively recently, LCD has a serious competitor - these are screens with active matrix organic light-emitting diodes or AMOLED. Such screens are fundamentally different from LCDs in that the light source in them is not a backlight lamp, but each subpixel separately, which gives AMOLED many advantages over liquid crystal screens, the main ones of which are: almost infinite contrast; less power consumption when displaying images with a predominance of dark tones; potentially wider color gamut; and smaller dimensions. The first AMOLED screens, in addition to their advantages, also had significant disadvantages, including: inaccurate color rendering; rapid burnout of LEDs; high power consumption when displaying images with a predominance of light colors; flicker due to pulse width modulation; and most importantly the high cost of production. Over time, most of the shortcomings were overcome or reduced to a minimum, except for PWM, which to this day is the Achilles heel of the technology. Pulse width modulation, or PWM, is one way to adjust the brightness of LEDs, which has the side effect of causing the screen to flicker at some frequency. Most people are not susceptible to this kind of flicker, but for some users, PWM can cause eye fatigue and even headaches. It is important to note that the flickering effect is completely absent at brightness values ​​close to maximum and begins to appear at brightness levels of 80% and below.

It is impossible to ignore the topic of organizing subpixels in screens based on organic LEDs; the fact is that in most AMOLED matrices, subpixels are arranged according to the RGBG scheme, when a pixel does not consist of three subpixels like a typical LCD screen, but of four: red, blue and two green, this scheme is also called Pentile. The manufacturer (Samsung) considers the physical resolution of such screens to be exactly two times less in terms of the number of green subpixels, red and blue subpixels in the matrix. Obviously, to obtain a shade you need at least three full-fledged subpixels. Thus, the effective resolution of such screens is not equal to the nominal resolution specified in the official specification. For example, for a QHD screen the nominal resolution is 2560*1440 pixels, the resolution based on the number of red and blue subpixels will be approximately 1811*1018:

The effective resolution of such a matrix, taking into account the clever interpolation algorithms embedded in the screen controller, is somewhere between 1811 * 1018 and 2560 * 1440, we can assume that it corresponds to FullHD resolution in RGB matrices. It may very well be that it is precisely for this compliance that Samsung has been choosing QHD resolution for its flagship smartphones for many years in a row.

Detailed comparison of IPS and AMOLED using the example of iPhone 7 and Galaxy S8 smartphone screens

Now that we have learned everything about the characteristics of screens and the features of different types of matrices, we can move on to the main question: which technology is better? I’m sure it’s correct to try to answer this question by comparing the best AMOLED and IPS matrices available today, namely the screens of the Samsung Galaxy S8 and Apple iPhone 7 smartphones. Since I have not yet acquired testing equipment, I will analyze the test results taken from a reputable resource. Let's start with the resolution, the Galaxy S8 screen has 2960*1440 pixels, the guaranteed effective resolution will be 2094*1018, the guaranteed effective pixel density will be 403 per inch. The iPhone 7 Plus has a lower nominal effective resolution: 1920*1080, and an effective pixel density of 401 per inch. The advantage is obvious in favor of the screen from the Korean vendor. The resolution of both screens is enough for everyday use and not enough for comfortable use with virtual reality helmets. Next, let's move on to accuracy; the contrast ratio of the Galaxy S8 is almost infinite. The iPhone 7 has a stated contrast ratio of 1400:1, but the actual contrast is slightly higher – 1700:1; this contrast is more than enough for comfortable viewing of content. It turns out that in this parameter the screen of the Galaxy S8 was ahead. As for color accuracy, both smartphones showed virtually identical results; color rendering errors in the Galaxy S8 and iPhone 7 can be safely ignored. You can see the most important secondary characteristics in my opinion below:

As for the color gamut, the iPhone 7 is ahead here, since it can display the colors of the DCI-P3 space or 126% of the sRGB field, while the user does not need to sacrifice color rendition; the content is displayed based on the color profile embedded in it. The Galaxy S8 screen has an even wider color gamut - approximately 142% of the sRGB field, but does not have color profile management, driving the user into a corner, that is, into the Main mode, which corresponds to 100% of the sRGB field.

So what's the bottom line? If we consider screen technologies in isolation from the final product, then AMOLED today is superior to IPS in almost everything, although it still has problems with PWM and high power consumption. Without any doubt, OLED matrices are the future. Unfortunately, due to the limitations of Android, their full potential has not yet been realized. When comparing ready-made solutions in the form of Galaxy S8 and iPhone 7, the slight superiority of the latter due to honest DCI-P3 and standard other parameters is obvious. I would like to warn you against projecting the results of the above comparison onto absolutely all IPS and AMOLED screens. There are a lot of good, average and bad matrices on the market, and each case needs to be analyzed separately. Internet publications focused on technical detail and reliability will help us with this; among such publications I would include the already mentioned, anandtech.com and some other sites, from Russian-language sites - ixbt.com.

Perhaps you shouldn’t take the consumer properties of screens too seriously, because the objective information is almost always superimposed by the factor of subjective perception. For example, in Southeast Asia there are a lot of people who like unnatural, oversaturated colors; in our country there are also quite a few such people. On the other hand, broadcasting information poured into the ears by marketers in numerous discussions under reviews on YouTube is at least strange. Finally, I’ll be Cap and give you a couple of banal pieces of advice: don’t stop thinking and be critical of any information you receive from brand representatives and the media, know how to analyze data and check facts, or just read resources and watch bloggers you can trust.

Today, there are several different technologies for making phone screens, and there is an unspoken struggle between them for primacy.

IPS and amoled did not escape the same fate.

IPS and AMOLED – what is it?

Read also:IPS matrix: what is it? Technology Review + Reviews

When buying a telephone, not everyone pays attention to its important part - the screen. The main thing is that he was there. And he worked in the proper quality.

Not even all users know that they are different and differ from each other in a number of characteristics.

And yet screenips oramoled- which is better?

There are several methods for producing telephone screens on the IT technology market:

• Amoled - they are used by Motorola, Samsung, HTC and LG.
• TFT – Siemens, Samsung.
• E-Ink – Digma, Sony, Tesla.
• LCD - are more common among all presented. Nokia, Samsung.
• Ips – Lenovo, Xiaomi.

Amoled

Read also:Popular types of monitor matrices: description of the advantages and disadvantages of each type, choosing the best option for your daily tasks

Ips - appeared in 1996 and throughout its existence it has transformed and improved its technical characteristics. Copyright © Hitachi and NEC.

Produces fairly natural colors. This is achieved by the fact that the crystals with this technology do not turn into a spiral, but rotate together when an electric field is applied.

It has won consumer recognition and is widely used by manufacturers in the manufacture of mobile phones.

What is the difference between the screens?

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Many users now understand the screen formats of mobile phones and choose a device based on these characteristics. And more and more people are wondering ips or amoled?

The difference between them is not obvious to everyone. After all, both options are good, but regarding what the consumer requires from them, one can name the advantages and disadvantages of each of them.

The display of a phone made using IPS technology requires a backlight for the screen, and this consumes a huge amount of battery power.

The difference with amoled technology is that such phones do not need a backlight at all. The next point, if we compare it, is much subtler.

Referring to the figure, you can see that in the first version the upper corners are darkened to a greater extent, that is, the viewing angle is smaller.

Also, when visually examining both models, you will notice that in the second picture the picture is a little brighter.

Also, the lights on the screens are different, and this is clearly visible to the naked eye.

If you express your own opinion about both models, then both drawings are good in their own way.

And after purchasing any of the models, the owner of the device will not even notice that there is any difference. It’s just that each of the topics is presented in its own way.

After some time, the Samsung company tried to improve Amoled displays and developed a new product - this technology was called super amoled.

Now let’s figure out what took first place among buyers - ips or super amoled?

In super Amoled displays, manufacturers tried to eliminate some of the negative qualities of the technology and came to the conclusion that they eliminated one layer in the screen, and therefore removed one layer of air.

The main task of the new development was to get rid of the phone's screen from being exposed to light when used in the sun.

The method differs from the previous version only in that the number of subpixels has changed. And, as you know, the more of them, the better the color rendition.

This is due to the fact that light conducts in greater quantities and the output picture appears very clear and bright.

Both models, as a result of comparison, can boast of their positive aspects. As well as showing your own shortcomings.

Positive qualities of IPS

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1 On its screen the picture appears beautiful, bright and clear - real, without a technically fictitious design of the color scheme. Matrices made using Amoled technology cannot convey such a natural picture. That is, if the photo turned out well and all the colors were captured and transmitted correctly, then this is how it will appear on the screen.

2 On Amoled, you can get a natural color only by performing various manipulations in the settings. Thus, the manufacturer has developed a special database of configurations that are responsible for setting up the correct color rendering.

If such settings are present on your device, then both models made using the technologies in question will be practically equal and will not differ from each other.

3 In Amodet phones it is absolutely impossible to properly adjust the transmission of white color. But Ips displays exactly this way on the screen, without any distortions or changes. What I received when photographing was sent to the display. This anomaly does not bother some users at all. But there are other problems with flowers.

When the same white is reproduced on the monitor, various pink, blue or yellow shades appear.

Manufacturers have not yet been able to remove this defect. Only the decision was made to fix the problem with individual settings.

Solving the problem described in the first option is not difficult, but as for the rest of the output gamut presented in option number two, achieving the desired result is much more difficult.

If this is the first time a user has such a phone, then he will spend a lot of time before anything changes.

4 Another advantage of Ips is that the drawing remains the same no matter what viewing angle you view it from. There is no degradation of any kind. For example, if many people want to see on one screen, then they will have absolutely no difficulties with this. At all angles the picture will be the same.

5 In Amoled screens, a shift in color gamut to cool shades is often visible. In addition, due to the interestingly distributed subpixels, when you look at the picture from different angles, green and red tones are clearly visible.

6 The Amoled screen fades over time and this is its next disadvantage when compared with IPS. Because in the latest phone such problems simply do not exist.

7 Ips is considered better because the screen sharpness and detail are much better. In an Amoled display, some users can see the pixels in the picture. Such a defect is noticeable even with the naked eye, without comparison with any other model.

8 The last advantage, but quite important for consumers, is the pricing policy. Ips is much cheaper than the other option, but at the same time it has a lot of qualities that make you think when choosing a model to buy.

Positive qualities of Amoled

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It cannot be said that Amoled displays are as bad as they turned out to be in the first comparison. These phones certainly have their positive qualities, let's take a look at them.

1 The screen, if we carry out a comparative analysis, is noticeably thinner. Although not a very compelling argument, some users may appreciate it.

2 It is believed that the display of the model in question is more economical. This happens because each individual subpixel glows independently.

3 However, the issue can be called controversial, because when using light backgrounds the energy consumption is greater, and when using dark colors it is less. That is, if a person uses a light screen more often, the charge does not last long, but if it is black, then vice versa.

4 An undoubted advantage of Amoled is its contrast. There are no similar analogues in the world yet. This is very attractive to a person who has not yet used a phone that shows such vivid images. After some time, the euphoria passes and only eye fatigue remains, but that’s later.

5 The display on your mobile device responds faster. This means that we can expect that the pictures on the screen will change faster.

6 Just like Ips, it has a completely dark display. This effect is obtained due to the fact that, if necessary, not all subpixels are highlighted, but only those that are currently needed.

Users' opinions on phone screens

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Summarizing the listed advantages of each of the phones, it is difficult to say which one is better.

One thing is clear amoled or ips- which is better, everyone must make a choice individually.

After all, some people are chasing a wide screen, others are chasing the speed of the device, the next important thing is its size.

All these and many other characteristics, to some extent, are present in each of them.

Of course, judging by what is written above, ips has a little more advantages and is made of better quality, but this does not mean that the other option is not worth your attention.

You can see that the technological characteristics of the latter have a slight overkill in the presentation of colors. By the way, this has a slight effect on the eyes.

Also, you need to be prepared for the fact that its service life is shorter than what the manufacturers claim.

After all, most often, not having used the device for even a year, a person begins to notice that the screen is slowly burning out.

Unfortunately, over some time this will lead to its complete unusability.

We can say about ips that in terms of color gamut transmission, it surpasses the naturalness of the resulting image. And their service life is a little longer.

Of course, it is impossible to foresee all the nuances and do without shortcomings. The models we are considering did not escape the same fate.

Disadvantages of IPS

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• One of the points for which a phone can be given a negative rating is the thickness of its screen. It is a little larger and the reason for this is the backlight, which is built into the middle.
• The backlight for such a model requires much more powerful, and because of this, it turns out that the energy consumption is also greater.
• The Matrix produces its response to actions a little slower. This fact is practically unnoticeable, but still, it takes place.

Disadvantages of Amoled

• The production technology of such a model, compared to IPS, is more expensive, and at the same time also more complex.
• After a short time, the colors begin to fade and the screen becomes unusable.
• The picture the phone produces is much worse than the first one. And even less bright.
• The device is very vulnerable to all sorts of mechanical damage, which makes it not so universal and adapted to the big rhythm of the city.

Amoled screen fades

AMOLED– active matrix on organic light-emitting diodes ( Active Matrix Organic Light-Emitting Diode). The essence of the technology comes down to the use of organic LEDs as a source for constructing a picture on the surface of the active matrix, and TFT thin-film transistors that control these LEDs.To simplify it as much as possible, then AMOLED technology is a layer cake, the bottom layer of which is an active matrix, followed by a layer of organic LEDs and a layer of control transistors. The interesting thing is that for each LED there is a personal transistor, which, by changing the electrical potential, causes the LED to change color and saturation. This principle of operation allows you to achieve high clarity and contrast of the picture.

Advantages of AMOLED displays over LCD displays

• Relative energy saving, energy consumption depends on the brightness of the picture; the darker the picture, the less energy the AMOLED display consumes.
• Wider color gamut (32%) than Super IPS LCD display.
• The matrix response rate is 0.01 ms. For comparison, a matrix made using TN technology has a response rate of 2 ms.
• The viewing angles horizontally and vertically are 180 degrees, with full preservation of brightness, clarity and contrast.
• Thinner display
• Maximum contrast level.

Advantages of AMOLED displays over plasma panels

• Compact size
• Low power consumption
• High brightness

Disadvantages of AMOLED Displays over LCD Displays

• The service life of organic LEDs decreases with frequent viewing of bright pictures, due to the fragility of one of the phosphors, in particular blue. It is worth noting that developers are constantly looking for new sources of this product, and already now blue phosphor is able to work up to 17,000 hours without loss of signal quality.
• The high cost of producing AMOLED displays.
• Inverse relationship between time and brightness indicators. The average service life of such displays is 7-8 years.

Disadvantages of AMOLED Displays over Plasma Displays

• AMOLED technology does not allow you to create large displays at a reasonable price.
• Color imbalance, due to the fact that each LED has its own brightness, it is necessary to create matrices with an uneven arrangement of subpixel LEDs to achieve color balance.
• Sensitivity to ultraviolet radiation.
• Unreliability of connections inside the screen (the slightest break or crack is enough and the screen does not show completely).
• The slightest depressurization between the layers of the display is enough - and the display begins to fade from this point. (one or two days are enough for the display to stop showing completely).

Comparison of AMOLED and Super AMOLED technology

Super AMOLED (Super Active Matrix Organic Light-Emitting Diode) – improved technology for the production of touchscreens based on AMOLED technology. Unlike its predecessors, the touch layer is glued to the screen itself, which allows you to get rid of the layer of air in between. This increases clarity, readability in sunlight, color saturation, and allows for a smaller display thickness.

• - 20% brighter than its predecessor
• - 80% less reflective of sunlight
• - energy consumption reduced by 20%
• - dust cannot get into the gap between the screen and the touchscreen

Super AMOLED display design

The top layer is the touchscreen. It is glued to the second layer - a transparent protective layer, on which the wiring is also located (Wire network for transmitting low voltage current). The wiring goes to the layer with LEDs - they form the image. Below the LEDs is a layer of thin film transistors (TFTs). Underneath them is a substrate, which can be made of a variety of materials, including flexible ones.

Video showing the difference in picture quality of displays made using various technologies, including AMOLED and Super AMOLED.