There was a time when the Samsung company loudly announced its Amoled technology, calling it almost the pinnacle in the production of matrices. Initially, Amoled screens were used in televisions, then the technology was inherited by the brand’s smartphones.
AMOLED displays are not liked for their unnatural picture, excessively high contrast, and saturated colors.
At this moment, IPS screens with their clarity and natural picture appear on the market. Which is better - IPS or Amoled, and which display is right for you.
Advantages and disadvantages of IPS and AMOLED
Both technologies have a lot of them, that’s a fact. Let's start with Amoled.
AMOLED – Active Matrix Organic Light Emitting Diode. The technology provides maximum screen brightness and high image contrast, excellent glare suppression in bright daylight/sunlight/lamp light. At the same time, the screen itself consumes little energy, since the pixels are activated only at the right moment, while with IPS all pixels are constantly active when the screen is turned on.
Disadvantages of Amoled:
- High cost of production, which significantly increases the price of a smartphone;
- High vulnerability to mechanical damage;
- Over time, colors fade.
What does IPS have? Here, too, everything is very ambiguous. In-Plane Switching technology was created as an ideological successor to TFT - a frankly outdated technology that does not provide a rich picture, good responsiveness, or wide viewing angles.
Having gotten rid of these shortcomings, IPS became a real godsend. The picture is clear, dynamic, deep and rich. But most importantly, the colors have become truly realistic. Amoled, with its oversaturated color palette, loses greatly in this regard. Although, this is also a matter of taste. The picture is clear, the viewing angles are excellent - everything is great.
Disadvantages of IPS:
- Active energy consumption;
- Smartphones with IPS screens are slightly thicker than their Amoled counterparts;
- IPS requires more powerful backlighting;
- Slow matrix response (only the most picky users will be able to tell the difference);
- Pixel grid visibility.
AMOLED or IPS - what to choose?
If you are faced with a choice - to buy a smartphone with an IPS or Amoled screen, start from how exactly you will use it and what you generally expect from the screen. Do you want natural colors and overall good color rendition? Choose IPS. Do you want the battery to last longer, and the picture to delight you with richness and depth? Amoled for you.
At the same time, everyone should remember that you are not buying a TV, but a smartphone. The average user may not notice much difference between these technologies. And perhaps best advice in choosing - just see what you like best visually. Well, if you are buying a phone for several years, then it is better to buy one with an IPS matrix. You definitely won't like the faded colors on Amoled. Although, again, you may not even notice them.
Today, in the manufacture of screens for mobile phones, two types of matrices are used: AMOLED and IPS. In this article we will tell you what is the difference between screens built on these types of matrix and point out their differences.
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Key benefits of IPS technology
First displays on technology IPS appeared in 1996. But these were rather experimental devices. Mass production of such screens began just a few years ago. During the time from the first screens on such a matrix to modern displays, all the shortcomings were taken into account and errors were corrected. Today we can state the fact that IPS screens have firmly entered our lives.
The main advantages of IPS matrices over competitive technologies are:
- Best color rendition. Unlike AMOLED screens at IPS colors are not “enhanced” artificially. Thanks to such honest color reproduction, IPS displays are loved by everyone who works with photographs. Photographers, photo editors and representatives of related professions. IPS screen gives a bright and rich picture, if that is what it is. If the picture is dim, then on a screen built on a matrix IPS it will be dim. Because of this, not everyone evaluates this advantage positively.
IMPORTANT: On AMOLED screens can also convey “honest” colors. But this is achieved through software settings that give pre-embellished pictures a more believable look.
- True white. AMOLED screens simply cannot display white correctly. IPS screens, on the contrary, produce true white color. No blue or yellow tint like competing technology. Pure white color affects the entire image as a whole. Therefore, applying a shade to it can distort the entire picture.
- No color distortion when viewing the screen at an angle. Some may overlook this advantage of IPS. But imagine that you are in the company of friends watching some interesting video from your smartphone. There will always be someone for whom the screen of your smartphone will not be fully expanded. And if your screen is not IPS, then this will be immediately visible when it is positioned at an angle. This effect has long been felt by owners Sony Xperia Z.
IMPORTANT: When unfolding the AMOLED screen, the color rendition shifts to the cold spectrum or the picture begins to “red” or “green”.
High maximum brightness. This advantage is especially pronounced when using the smartphone screen in bright sunlight. If you have it built on an AMOLED matrix, then the bright rays of the scorching sun will force you to look for shade in order to see what is happening on the screen. The whole point is that IPS-The matrix uses an LCD screen with its powerful backlight. U AMOLED screens, every pixel is illuminated. What “physically” does not allow the screen to be bright.
- Detail and sharpness. There are people among us whose eye structure allows us to see pixelation, even at the best Full HD screen. These people definitely don't need to buy a smartphone with a screen AMOLED. Otherwise, using it will lead to great disappointment. Modern screens AMOLED gradually “cure” this childhood disease. But, it is still present on most budget devices.
- LED burnout. U AMOLED organic LEDs may burn out on screens. Which is reflected in the different brightness of individual parts of the screen. According to the developers of such screens, the service life of the LED is 6-10 years. But, in practice, they can burn out faster. U IPS there is no such problem.
Cheaper production technology. A trivial but important advantage IPS. The cost of a smartphone consists of various modules and components. The screen is an important and expensive part of a smartphone. The cheaper the screen, the cheaper the smartphone will be.
Pros of AMOLED technology
- High Contrast. When comparing IPS With AMOLED the second screen will seem more colorful and saturated. Organic LEDs allow you to make the picture as contrast as possible. Which causes the effect of “embellishment” in color rendition.
IMPORTANT: Special tests show that the contrast level AMOLED screens reach ratio 30000:1 . Whereas IPS this indicator is equal 1500:1 . The difference is significant.
- Absolute black. If one of the advantages IPS was “real” white, then AMOLED The screen allows you to display absolute black. This is achieved due to the fact that AMOLED individual pixels are illuminated on the screen. Whereas IPS The entire screen is illuminated. Which has a negative impact on black people.
- Less energy consumption. Everything is simple here. Individually backlit pixels consume less power than backlighting the entire screen, like IPS. “On paper,” this advantage seems very important, and for many, a turning point. But, in practice, this is not entirely true. The resource consumption of your gadget is influenced by many other factors. From the style of using the device to the energy saving technologies used by the developer.
- Faster response time. AMOLED The matrix allows us to produce screens with a shorter response time compared to IPS screens. This allows the picture to change faster. But this advantage in the speed of changing the picture is so insignificant that in reality it is simply not visible.
- Less thickness. IN AMOLED screens do not need backlighting. This saves space. It is due to this advantage that there are ultra-thin smartphones on the market today. If this indicator is important to you, then choose smartphones with a screen AMOLED.
Which screen is better for a smartphone: IPS or AMOLED?
To summarize, it can be noted that both popular screen technologies for smartphones have both their pros and cons. Of course, it may seem that IPS There is a longer list of advantages, which means this technology is better. And in some cases this is true.
But what is much more important is how the manufacturer implements these advantages in practice. In most cases this cannot be done. Although they have already appeared IPS screens that actually outperform even a more advanced matrix Super AMOLED .
High-quality screens on IPS-the matrix can boast Asus ZenFone 3 Max, LG G5 SE, Apple iPhone 5s and some other models. But is it really worth discounting? Samsung smartphones with their advanced screens Super AMOLED?
In constant competition and race between manufacturers, new technologies are born every year that surpass their predecessors in all respects. This also applies to manufacturing technologies for modern displays. Just imagine, some 15-20 years ago we only knew CRT picture tube screens. They were bulky, heavy and had a low flicker frequency, which negatively affected our health. But today, users can choose between Amoled or IPS, as well as other types of matrices that allow them to make screens as flat and light as possible.
Besides, modern types matrices are distinguished by the highest image accuracy, high resolution and quality. In this article we will talk about exactly two modern technologies– Amoled (S-Amoled) and IPS. This knowledge will help you make the right choice to suit your requirements. But in order to understand which display is better in a particular situation, it is necessary to analyze both technologies separately.
1. What is an IPS matrix and what advantages does it have?
Despite the fact that the first IPS displays were developed back in 1996, this technology has only gained popularity and widespread adoption among consumers in the last few years. During this time IPS matrices We have undergone a lot of changes and improvements, which made it possible to provide users with high-quality displays that display the most natural colors. In addition, IPS matrices have high image clarity and accuracy.
Asking which screen better IPS or Amoled, it is worth understanding that the comparison is between the two most recent developments. These two technologies have different design features.
The main feature of the IPS display is natural color reproduction. It is thanks to this quality that such screens are in great demand among professional photographers and photo editors.
1.2. Advantages of an IPS matrix
IPS displays have a number of undeniable advantages that are visible to the naked eye:
- Maximum natural color rendering;
- Excellent screen brightness and contrast;
- Accuracy and clarity of the image. It is worth noting that in IPS displays the pixel grid is practically invisible to the naked eye, which makes the image even more accurate and pleasant to perceive;
- Low power consumption;
- High screen resolution. Speaking about resolution, it is worth understanding that the vast majority of modern IPS screens has a resolution of Full HD 1920x1080.
Of course, like any other IPS technology also has its drawbacks, but they are minor:
- Slow response. But this is absolutely invisible to the naked eye, and when compared with the “fastest” (in terms of response) TN matrices, you will not notice it visually;
- Very often on the Internet you can find statements about the large and noticeable pixel grid of an IPS screen, but this parameter is by far the best among its analogues. If you compare IPS with TN+Film or Amoled, then the pixel grid sizes of IPS are the smallest, which makes such screens the best in this comparison.
Of course, when comparing which is better IPS or superAmoled, it is worth understanding that not all IPS displays are equally good, since there are different IPS types matrices At the same time, Amoled is a development of Samsung and they are produced only under the brand of the same name, so Amoled screens are practically no different from each other.
2. Super Amoled matrices
This type of display was developed in 2009 by Samsung. The main and only purpose of developing this screen is to use mobile phones, smartphones, tablets and others mobile devices ah with touch screen. Already in 2010, the Korean company released a new type of matrix called Super Amoled. The difference between Amoled and Super Amoled is the absence of an air gap between the layers of the second type of screen (S-Amoled).
This solution made it possible to make the screen even thinner. Also thanks to this, the brightness of the display increased by 20%. At the same time, energy consumption remained at the same low level. In theory, such features make Super Amoled screens impervious to bright light. In other words, the user sees the image perfectly even in direct sunlight. However, in practice this is not the case. Certainly, IPS comparison and Super Amoled shows that in this parameter S-Amoled wins, but in any case, with direct rays the picture becomes difficult to distinguish.
2.1. Advantages of Super Amoled matrices
If we talk about touch screens, then first of all it is worth noting that this type of screen is characterized by higher sensitivity and quick response to user gestures. In addition, there are other advantages:
- The highest brightness among all types of screens;
- The largest viewing angles;
- High saturation and maximum amount colors and shades;
- Partial suppression of glare in sunlight, which improves image perception in bright sunlight;
- Low power consumption, which is extremely important for mobile devices;
- The service life of the screen is one of the longest.
3. Super Amoled vs IPS
So, taking into account all of the above, you can understand how Amoled differs from IPS. Firstly, the brightness of the screen. Super Amoled is the undisputed leader in brightness and color saturation. This is a very important parameter for mobile devices. However, if you are engaged in photo processing, then it is not brightness that is important to you, but the naturalness of color reproduction, and in this there is no equal to IPS technology.
Another difference is the thickness of the device. Of course, if we talk about monitors or TVs, then this parameter is not particularly important. However, when it comes to smartphones or tablets, the clear leader is Super Amoled. Also, touch screens S-Amoled have higher sensitivity, unlike IPS, which provides faster and more accurate response to user commands.
IPS technology, in turn, has a smaller and more invisible pixel grid. However, to see it you need to use a magnifying glass. With normal visual inspection, this difference is practically not visible.
Knowing all these differences, you can understand which display is the best IPS or Super Amoled in a given situation. Any advice in in this case cannot be given, because both screens have high quality, image accuracy and clarity, as well as display resolution.
4. LCD vs AMOLED: Video
Supporters of technologies used in the manufacture of mobile device displays are divided into AMOLED lovers and LCD supporters. Both types of screens are based on different manufacturing techniques, and manufacturers emphasize the advantages of their own technological process.
So which screen is better - IPS or AMOLED? Is there a noticeable difference between these technologies, and if so, what is it?
LCD technology
LCD stands for LCD display. It reproduces colors completely differently than AMOLED. In a liquid crystal display, the light source is the backlight. The backlight can be multiple, which saves energy, but it is used in large TVs.
White color does not have its own wavelength. It is a mixture of all other visible colors of the spectrum. Thus, the LCD backlight must create virtual white light as efficiently as possible in order to produce different colors in the LCD element. Most LCD displays have a blue LED backlight that hits phosphors and produces near-white light.
The real complications begin when the light is polarized and passed through the crystal. The LCD element can rotate it to different angles by changing the voltage applied to it. Next, the light passes through another one shifted by 90° relative to the first. This dampens it depending on the angle of rotation. The light then passes through the RGB filter, creating subpixels, which are then grouped into pixels.
All this is to say is that the LCD controls the amount of light by blocking the backlight and does not generate colored light for each pixel. Like AMOLED, LCD displays can be either active or passive matrix devices.
AMOLED technology
The key component of screens hidden in the name of this type- light emitting diode (LED). Electronics enthusiasts knew about these bulbs before, but in the display panel they are radically reduced and placed in the form of red, green and blue clusters, which make up a single pixel capable of reproducing white and other colors. The arrangement of these subpixels may have a slight effect on the performance of displays.
The O stands for organic. There are a number of thin organic films placed between the conductors of an LED that emit light when current is applied.
Lastly, the AM part of AMOLED stands for "active matrix" as opposed to passive technology. This indicates how each OLED LED is driven. To control an individual pixel in a passive matrix, controls are used to control the supply of voltage to the required column or row. It's slow and not accurate enough. Active matrix systems in each LED use a TFT transistor and a capacitor. When row and column are activated to access a pixel, its capacitor retains charge between refresh cycles. This allows you to control it quickly and accurately.
Another term that you may come across is Super AMOLED, Samsung's marketing name for a display combined with a capacitive one. Typically, such a screen is made as a separate layer on the outer part of the display. This combination makes the display thinner.
Super AMOLED vs LCD
This profound difference in the way displays operate has a big impact on the user experience. Color gamut is most often mentioned when comparing these technologies. AMOLED provides a greater range of color options than LCD, resulting in brighter images.
OLED displays have extra saturation in green and blue, the most powerful colors in subpixels. Some feel that this extra saturation produces unnatural colors. LCDs tend to overcompensate for red tones with more muted greens. Although they do not have a very wide gamut, the image they produce closely matches the standard color gamut profile used in photos and videos.
A closer look at smartphone displays reveals that color gamut can vary quite significantly even within the same type of display. For example, although BlackBerry Priv and Galaxy Note 5 uses an AMOLED display from the same manufacturer, they have completely different gamma profiles. This can be partially explained by the presence of multiple profiles and different image calibration by the manufacturer.
Color accuracy is another significant difference, especially when it comes to whites. Testing some of best smartphones Android has shown that OLED displays produce very accurate results, while LCD displays have a slight blue tint. This is not surprising given that LCD displays use filtered blue backlighting.
The lack of backlight and filter layers also speaks in favor of OLED. LCDs often leak excess light and have low contrast because the backlight doesn't turn off even when the pixels are supposed to be black, while OLED can simply turn off its pixels. The LCD filter layer also blocks some of the light, and the greater thickness means viewing angles are narrower compared to OLED.
The downside to AMOLED is that different LEDs have different lifespans, meaning that individual RBG components will eventually degrade with at different speeds. The color balance of an OLED display may shift slightly over time, but the LED backlighting of an LCD means the color balance is more stable.
Controllability
One of the main advantages of OLED screens is their high controllability at the level of each pixel. This element can be turned off, allowing you to achieve deep blacks and a high contrast ratio. Controlling radiation at the individual pixel level results in energy savings, and the absence of additional layers above the LEDs means that maximum light reaches the surface. Images become brighter and the viewing angle improves.
Thinness and flexibility
Adherents of AMOLED note the smaller thickness of the screen, which determines the size of the device and its weight. This is due to the lack of backlight. Although this parameter may seem unimportant to many, it has an impact on another important indicator- viewing angle, which directly depends on the thickness of the display.
The use of LEDs means that LED screens are extremely thin, which is ideal for portable devices. The absence of hard backlight and a breakthrough in substrate production made it possible to create the first generation flexible displays, very promising for creating new form factors.
Contrast
One of the main parameters that will help you figure out which screen technology is better - IPS or AMOLED - is contrast. The advantage of LED technology is its huge contrast, which is why users love this technology. When a person sees such a colorful display for the first time, he is very surprised. This is the “wow effect” so revered by marketers.
Black depth
The next parameter that will help you decide which screen is better - IPS or Super AMOLED - is the ability to transmit black color. Due to the fact that LED screens glow on their own, users give them an undeniable advantage. Only the pixels needed in the image are used, and not the entire screen, as in IPS. Contrast is the ratio of the brightness of the lightest and darkest areas of the screen, so the theoretical contrast of organic LEDs is infinite, since there is no glow. But in reality the situation is different; reflected light passes through the black areas. The contrast difference is 20-fold (30,000:1 versus 1,500:1).
Energy consumption
Among the indicators that allow you to decide which is better, IPS or AMOLED, users cite screen efficiency. In LED technology, this is achieved by lighting individual subpixels. The screen spends little energy on dark scenes, but more on light scenes. Therefore, the power consumption of the display depends on the mode of its use.
Performance
Response time also influences consumers' opinions on which display is better - IPS or AMOLED. With the latest technology it is smaller, which in theory should mean a slightly faster picture change. In reality, the longer IPS response time is almost imperceptible. And in Samsung Galaxy S4 another problem appeared - fast image changes cause a noticeable visual effect.
Color rendition
Another question that allows you to choose AMOLED or IPS is which reproduces colors better? IPS displays provide images without distorting the color gamut. The color will be bright when it should be. Natural gamma on LED displays is achieved by customizing the software.
White quality
True white color LED displays, as users say, is difficult to achieve. LCD, on the other hand, produces an imaginary white color emitted by a phosphor. The result is shades of blue, yellow and pink instead of white. In this case, individual image adjustment can help.
Viewing Angles
Another parameter that will help determine which matrix is better - IPS or AMOLED - maintaining color accuracy when viewed at an angle. If we talk about LCD screens, then their colors shift to the cold side, and the non-standard layout of subpixels of LED displays, which is different from the usual one, takes the picture into different colors, for example, it can turn green or red.
Brightness
High brightness means the image is clearly visible in strong ambient lighting conditions. This is the next parameter that will allow you to decide which is better - IPS or AMOLED. Screen contrast won't help here. In LCD displays, white light is created by a powerful backlight, while LED panels emit every pixel. This explains the difference in light intensity - AMOLED technologies do not yet allow the brightness of subpixels to compete with backlights in LCD displays.
Definition
Which is better - IPS or AMOLED - will help you decide on the detail and sharpness of the image. Some users have no trouble distinguishing the subpixels of an LED screen, which is not good. Myopic people see them clearly even with Full resolution HD. This is explained by the use of PenTile technology, which ensures the same glow of subpixels of different colors. The image loses clarity and has less clear contours. Traditional IPS layout means more detail and straighter lines.
Pixel burn-in
Another “plus” of IPS technology is the “minus” of LED technology. Organic LEDs burn out over time. Although quite large, differences in the brightness of different areas will become noticeable within a year. LCD screens are free from problems with burn-in.
Price
The answer to the question of which is better, IPS or AMOLED, also depends on the price. The cost of the device is determined by the sum of the prices of all its components, the most expensive of which is the display. But a lower price for a gadget does not mean a lower cost for the screen. For example, HTC One with IPS and Samsung Galaxy S4 with Super AMOLED cost the same, although the price is higher.
AMOLED, TFT IPS: which is better?
Technologies have qualities that can be called advantages or disadvantages depending on the user's color and contrast settings. Although the many display modes available in modern smartphones allows you to achieve maximum quality. The lower manufacturing costs and added benefits of OLED displays make them arguably more promising, and lower-cost LCDs are destined to fill gaps in the budget segments of the market.
Leading display manufacturers such as LG Display are betting on OLED technology by investing in additional production capacity. The AMOLED panel market is expected to reach $30 billion in 2022, more than double today's level. Not to mention the yet unrealized potential of the flexible display market.
The development of quantum dot LCDs could close the performance gap between LCD and OLED, so don't count out LCD just yet.
When deciding which type of display to choose - Super AMOLED or IPS, which is better for the user - you should remember: each technology has its pros and cons. Only after weighing all the pros and cons, taking into account the degree of importance of each parameter, does it make sense to make a choice. LCD screens offer slightly more advantages. Among them are natural high-quality color and high image brightness. LED technology is characterized by excessive color saturation, poor readability in bright ambient light, and a shorter service life. Nevertheless, AMOLED displays have an excellent “wow” effect, again and again bringing the next victim to consumer ecstasy.
Samsung differs from other manufacturers in that most of its smartphones are equipped with Super AMOLED screens, rather than the more traditional IPS LCDs. Such displays have become the company's signature feature and have gained many both fans and opponents. These matrices are one of the types of screens based on active LEDs, rather than liquid crystals, and indeed have both advantages and some disadvantages.
Super AMOLED is Samsung's marketing term for LED matrices displays last generations, starting in 2010. Such displays initially differed from conventional AMOLED in that they did not have an air gap under the touchscreen. The sensor layer in them is located directly on the matrix, due to which the brightness was increased, power consumption was reduced, the tendency to glare was eliminated, and the risk of dust getting on the matrix was eliminated. Nowadays, most smartphone screens have lost the air gap (except for the cheapest models), including AMOLED, but the term Super AMOLED continues to be used by Samsung.
How Super AMOLED screens differ from LCD IPS
Super AMOLED displays are built on a radically different principle, unlike conventional LCD matrices. LCD screens consist of an array of liquid crystals, diode illumination and a mirror substrate. Light passing through the crystals is partially absorbed by them. Depending on the position of the crystal, it glows brighter or dimmer, and transmits only radiation of one color (red, green or blue). The color of the pixel that we see depends on the combination of brightnesses of three multi-colored subpixels.
In Super AMOLED, instead of liquid crystals in the subpixels, miniature LEDs are used, which have the same multi-colored filters. They themselves emit light, the brightness of the glow is regulated by changing the power of the supplied current, using the pulse width modulation (PWM) method. This approach made it possible to abandon additional illumination and a mirror reflective-scattering substrate, which had a beneficial effect on energy consumption and the thickness of the matrices. 
Advantages of Super AMOLED matrices over LCD
- Less thickness. The absence of a special mirror substrate, as well as light-absorbing and diffusing filters, makes Super AMOLED thinner compared to its liquid crystal counterparts. This is also facilitated by a sensor installed without an air gap.
- Reduced energy consumption. Since the matrix itself glows (and not its backlight), and the brightness of the picture is adjusted by changing the brightness of individual pixels, less energy is wasted. So, a dark pixel on an LCD panel simply absorbs light, at a fixed brightness level of the main backlight (which still consumes energy), and in Super AMOLED, reducing the brightness of each pixel leads to a decrease in their energy consumption.
- Purer black color. In an LCD, the backlight remains bright, and in order to display black color, the liquid crystals are rotated to a position in which the usual white light of the backlight diodes does not pass through. However, part of it is still scattered, because of this you cannot get perfect blackness: the screen will cast gray, blue or brownish, especially at the edges. On Super AMOLED, when black is displayed, the pixel turns off completely. And since black is the absence of any color, there is nothing to shine.
- Adaptive brightness and high contrast. Depending on the displayed shades and their ratio in the picture, Super AMOLED displays are able to regulate the power supplied. If the screen is completely filled with white, its brightness will not be very high, about 400 cd/m2 (top IPS can have more than 1000 cd/m2). However, if there are a lot of dark shades in the picture, the light areas become brighter. Due to this, the contrast increases, and in bright sunlight the picture is perceived better.
- Curved screens. The design of LCD panels imposes restrictions on their shape; strong curvature is difficult and expensive to achieve. But LEDs can theoretically be placed on a surface of any shape, achieving a bend with a radius of only a few centimeters.
Disadvantages of Super AMOLED displays compared to LCD
- Price. The cost of Super AMOLED matrices of the latest generations is comparable in price to top-end LCD IPS. However, in the budget segment, LED panels will be more expensive than LCD panels of similar quality. $5 IPS delivers close-to-natural shades, with possible slight variations in white balance and color temperature. A Super AMOLED panel at a similar price will render overly acidic colors, which is why Samsung doesn't make those anymore. The cheapest Super AMOLED matrix will cost more than its budget IPS counterpart.
- Prone to burnout. Miniature LEDs have a limited lifespan and lose brightness over time. If the display constantly displays dynamic scenes (for example, movies) - it will simply reduce the brightness over time. But if it constantly displays some static information of a light shade (on-screen buttons, indicators, clocks, etc.) - in these places the diodes will burn out faster, and over time, “shadows” may remain under them (for example, silhouette of the battery, even if the charge indicator is not shown at this time).
- Flickering PWM diodes. Since the brightness of the pixels is controlled by the pulse width method, they flicker during operation. The flicker frequency ranges from 60 to hundreds of hertz, and those with sensitive eyes may notice it and experience discomfort. The lower the brightness, the shorter each pulse will be, so some people find it unpleasant to look at. super display AMOLED at brightness level lower than 100%.
- Pentile. The Pentile matrix structure involves the use of a reduced number of subpixels, usually blue. When used, five (hence the name) rather than six subpixels (one blue and two each red and green) are used to construct two pixels. The use of pentile is driven by the desire to reduce energy consumption, reduce the impact of blue light on the eyes and reduce the cost of producing screens. But at the moment, Samsung creates all matrices using this structure, so when we say Super AMOLED, we mean Pentile. With the naked eye, at the current pixel density, only a few can see the lack of subpixels, but in VR their deficit becomes more noticeable.