Which screen is better amoled or ips
TFT vs IPS. IPS Properties and Versions
“But IPS screens are definitely better than TFT, it’s not for nothing that they write about this on the forums !?” And again, those who write like this did not guess. IPS is a kind of TFT. Same as TN, PLS, VA, MVA, PVA and others. TFT screens are sometimes mistakenly called TN (Twisted Nematic) displays, which really do not shine with picture quality. of all TFT options, they have the worst color rendition, the lowest brightness and contrast and very limited viewing angles. But TN screens are characterized by low cost, fast response and high refresh rate.
IPS (In Plane Switching) is the next step in the development of active matrix technology, which eliminated the main disadvantages of TN. Changing the position of the crystals and the voltage supply points to the cell caused the black to become truly black, and when viewed from the side, the colors remain the same as when viewed from the front. In addition, IPS screens noticeably improved color reproduction and increased overall brightness and contrast, but the response speed compared to TN, on the contrary, decreased.
Today, IPS is being developed in parallel by 3 companies. Panasonic (took over the “baton” from the developer of the first version. Hitachi), NEC and LG. Each version and generation of this technology has its own characteristics and names.
- The Hitachi and Panasonic lineup includes: IPS (Super TFT), S-IPS (Super-IPS), AS-IPS (Advanced super-IPS), IPS-Pro (IPS-provectus, IPS alpha, IPS alpha next gen).
- NEC’s developments are called: SFT (Super fine TFT), A-SFT (Advanced SFT), SA-SFT (Super-advanced SFT), UA-SFT (Ultra-advanced SFT).
- LG products are called: S-IPS (Super-IPS), AS-IPS (Advanced super-IPS), H-IPS (Horizontal IPS), E-IPS (Enhanced IPS), P-IPS (Professional IPS), AH-IPS (Advanced high performance IPS).
Samsung is also developing its own version of IPS called PLS (Plane to Line Switching).
All developers are improving technology in the same directions. This is a decrease in response time, an increase in contrast, depth and naturalness of color, an improvement in viewing angles, elimination of color distortions, a decrease in power consumption, and most importantly. a reduction in the cost of production of matrices. Computer monitors with IPS screens in recent years are already “treading on the heels” of TN in terms of response speed and can be used not only for professional graphics, but also for dynamic games.
Most users, except, perhaps, professionals in the field of graphics and design, will not notice the differences in the picture on IPS-displays of different brands, but there are also quite significant differences between their budget and top-end versions. The highest image quality is reproduced by the P-IPS and AH-IPS matrices manufactured by LG. They are the most expensive.
VA / MVA / PVA
Matrix VA, MVA and PVA occupy an intermediate position between TN and IPS in terms of image quality and price. Compared to TN, they have wider viewing angles and more accurately convey the depth and naturalness of color, compared to IPS they are cheaper. However, these types of screens are not widely used. They are used in the production of monitors for PCs and budget TV series.
Let there be light
LED LCD backlight technology is presented in several types. They differ in color, the location of the LEDs on the LCD panel and the way of dimming.
- A type of backlight with only white LEDs is called WLED. It is relatively SIMple in structure, but has a limited color gamut.
- RGB LED backlighting, built on red, green and blue LEDs, covers a wider range of colors than WLED, but is prone to degradation (LEDs of different colors fade at different rates), heavy and burdensome in price.
- GB-R LED is the next step in the development of LCD, where instead of a white LED, a combined green blue, coated with a red phosphor (self-luminous pigment) is used. This solution allowed us to cover 99% of the RGB palette and get rid of the disadvantages of RGB LED. GB-R LED technology used in AH-IPS and PLS matrices.
- RB-G LED is a variation of the previous type of backlight. Instead of blue-green LEDs, there are red-blue ones, covered with green phosphor.
On the basis of WLED, another standard for LCD displays, QDEF, has been developed, where blue diodes are used instead of white, and the red and green colors are formed by a coating of quantum dots (crystals that glow under the influence of electricity) applied to a sheet of plastic. QDEF displays reproduce up to 60% of the shades perceptible to the human eye, which is several times higher than what WLED can achieve. And in terms of energy costs and price, WLED and QDEF screens are approximately equivalent.
QDEF is also a version of QLED (Quantum-dot Light Emitting Diode) technology, which is based on quantum dot LEDs.
By the location of the light-emitting elements on the LCD panel, the following types of LED backlighting are distinguished:
- Edge LED. LEDs are arranged linearly around the perimeter of the screen. This is economical, but does not provide uniform lighting and acceptable contrast levels.
- Direct LED. An array of LEDs is distributed across the entire display area. This technology gives a more realistic picture, but panels of this type consume a lot of energy and are very thick, which makes them difficult to install on ultra-thin TVs.
- Side illumination. diodes are located only at the edges of the screen, and light guides connected to them provide illumination. This type of backlighting is considered optimal, as it provides uniformity comparable to Direct LED, and at the same time is devoid of its disadvantages.
Each of the three types of backlighting is divided into 2 more. with support for local dimming (Local Dimming) and dynamic contrast ratio (DCR) or not. Local Dimming and DCR screens look more realistic.
TFT vs LCD
“What about a TFT TV? Is it better than LCD or worse? ” Neither, because TFT (Thin Film Transistor) is an active matrix LCD, a kind of LCD. Active Matrix is a display color management system where each pixel is regulated by its own group of TFT microtransistors.
Unlike a passive matrix, where the shade of pixels is adjusted linearly (by lines and columns), the active matrix reacts 5-6 times faster to changing the picture, has a higher brightness, contrast and viewing angles, and also consumes less energy.
Liquid crystal screens of all modern TVs, monitors, smartphones and tablets have an active matrix, so it is inappropriate to compare LCD and TFT in relation to these devices.
AMOLED, OLED, IPS, TFT, etc.: how these types of displays differ and which one is better
If a person is “greeted by his clothes, but escorted by his mind,” then a TV, computer monitor, smartphone and tablet are greeted on the display. And they often see off too. When buying such a device, it is not always possible to evaluate the beauty and other properties of its screen with one’s own eyes, because many transactions are made via the Internet. But if you know what 3 letters mean, then it is easy to get an idea of the display of the device, even without seeing it.
No, these are not at all the letters that are written on the fence. And sometimes there are more than 3 of them. For example, LED, LCD, IPS, TFT, OLED, QLED, AMOLED. All these are screen manufacturing technologies that determine their characteristics. Let’s talk about LED, AMOLED, QLED, OLED displays and how they differ from IPS, TFT, LCD, etc.
OLED and AMOLED
Although the concept of OLED is consonant with LED, it has practically nothing in common with it. OLED (Organic Light Emitting Diode) is a display technology based on the properties of organic semiconductors. elements that can emit light when exposed to current. Each sub-pixel on an OLED screen is a separate OLED. Unlike LCD, OLED panels do not need backlighting as they light up with each dot.
Other properties and features of OLED versus LED:
- Low thickness and weight by reducing the number of layers.
- Unlimited viewing angles.
- Uniform lighting.
- Minimum response time.
- Significantly higher brightness, contrast and color saturation.
- Low sensitivity to external temperatures, but high to moisture.
- Short service life and tendency to degradation: blue diodes burn out 3 times faster than red and almost 10 times faster than green.
- Dependence of resource exhaustion on screen brightness. the higher it is, the faster fading occurs.
- Sensitivity to mechanical damage. A minor defect leads to a complete failure of the screen.
- Flicker by applying PWM (Pulse Width Modulation) to brightness control. OLED screens use PWM optional.
- High price.
AMOLED (Active Matrix Organic Light Emitting Diode) is an active matrix based on organic light-emitting diodes, a combination of TFT and OLED technologies, where the latter is used as a backlight. Accordingly, AMOLED screens have the properties of both.
AMOLED technology has found wide application in the production of touch screens for mobile devices. And not only she, but also the branches of her development. Super AMOLED and Super AMOLED plus.
The difference is SIMply AMOLED from Super. lies in the absence of the second air gap between the surfaces of the touchscreen and the matrix, which increases the clarity of the picture. And from Super AMOLED plus. in the number and location of subpixels (color components of the pixel). In the latter, there are 50% more of them and they are placed denser.
LCD vs LED
LCD, TFT, LED, AMOLED and other “ice” are just abbreviations, and the differences between them are a chasm. over, some of these concepts are incomparable. So, no one will tell you which TV is better: LCD or LED, since LCD (Liquid Crystal Display) is a liquid crystal display or just LCD, and LED (Light Emitting Diode) is one of the types of its backlight (LED). That is, the TV can be LCD and LED at the same time.
The structural diagram of the LCD screen with LED backlight is shown in the figure below:
LED backlighting, unlike the outdated fluorescent (CCFL) backlight, provides an even distribution of light across the screen surface and a higher level of brightness. Plus, it uses less energy and lasts longer.
AMOLED vs IPS
The question naturally arises: which display is better. AMOLED or IPS? You already know what the one and the other are, so let’s compare their characteristics in the table for clarity.
Obviously, both technologies have both advantages and disadvantages. It is difficult to call one of them a clear leader, especially since both have prospects for development and improvement. How they will show themselves in the future, we’ll wait and see. In the meantime, choose what you like more. you will win in any case.
What is light?
In SIMple terms, this is energy that we can see with our own eyes. Light travels through the environment like normal waves through water. But only if an ordinary wave oscillates in only one direction:
That electric field of the light wave has a chaotic direction and looks schematically as follows:
But we can very SIMply make all the waves go parallel to each other, like on water. To do this, it is enough to extinguish the “extra” waves.
This process is called light polarization. That is, if we pass all the light through a “fine grating with notches” (polarizer), only those waves will pass through it, the direction of which coincides with the notches, and the rest will SIMply be extinguished:
We now have a light wave in which the electric field only vibrates in one direction. It’s very SIMple, isn’t it?
And what will happen if we pass this wave through another polarizer (“fine grating”), just turn this second polarizer 90 ° relative to the first? It is true that such a grid will only allow horizontal waves. But we do not have such waves, after the first polarizer there are only vertical ones. As a result, the light wave will be completely extinguished by the “grating” of the polarizer:
That’s all we need to know about light to understand how a smartphone’s IPS screen works.!
IPS vs AMOLED. choosing the best smartphone screen
After the release of the article about OLED screens, one of our readers asked to talk about which screen of modern smartphones is better. IPS or AMOLED (aka Super AMOLED, Dynamic AMOLED or XDR OLED).
At first, I did not plan to write detailed material about this, since I was sure that there was plenty of information on this topic on the Internet. But then I decided to google it a bit and what I found changed my mind drastically.
In addition to the fact that many articles were written by people who have no idea how screens work, most of this material contains information that is no longer relevant, reprinted over and over again.
In my article I will try to explain as SIMply and clearly as possible the principle of operation of the screens of modern smartphones, and at the end we will compare all the advantages and disadvantages of each technology so that you can make the choice of the next smartphone more consciously.
Just at the very beginning, I would like to make an important point. In order to avoid unnecessary complexity and make the article understandable for every reader, I will deliberately make a number of SIMplifications and omit some details that are not key to understanding the topic.
And the last thing. If you are not interested in all the technical details of the screen device, just skip the article to the place where we will draw practical conclusions and answer the question. which is better: IPS or AMOLED.
Super AMOLED from Samsung
Super AMOLED and other buzzwords (Dynamic AMOLED, XDR OLED) are, in fact, the same AMOLED screen, with very minor design differences. And the main thing here is not so much these differences as the name itself.
The fact is that Samsung was a pioneer in the field of OLED screens and made a huge contribution to popularizing the word AMOLED. In fact, this word has become a kind of brand. The company used it instead of the usual OLED and wanted to register the corresponding trademark.
However, she failed to do this, since the word AMOLED literally meant OLED technology with an active matrix. Accordingly, the name of the technology cannot be patented. it was generally accepted even before the appearance of the first screens from Samsung.
Then other companies, in particular LG, joined the production of AMOLED screens. And Samsung had to do something, because it was on OLED screens that the company made its main bet. And it would not be very good to promote a common name, doing a huge service to competitors.
The solution was found very quickly. Samsung has slightly redesigned the display, making the touch layer part of the screen, while in a conventional AMOLED display, the touch layer is a separate element that sits on top of the screen. Because of this, the entire structure has become a little thinner.
Now the word Super-AMOLED is not just a name for a technology that everyone can use, but its own trademark and distinguishing feature of Samsung screens from screens of other companies (although, again, there is no significant difference).
Heart rate variability in Apple Watch: figuring out what’s what!
Artificial intelligence in your smartphone. How neural networks work?
How IPS-screens of modern smartphones work?
To understand how an IPS-screen works, you need to recall a little school physics lessons.
What is ISO 22810? Or a story about how the waterproofing of watches and fitness bracelets has changed
The main disadvantages of AMOLED displays
The cons of OLED screens is a very interesting and important topic. Each of the disadvantages listed below deserves a separate detailed material (which will definitely come out on Deep-Review).
Therefore, here I will only very briefly list the main problems, without focusing on why they arise and why some of them negatively affect the human body.
All OLED screens are affected by this problem. If you turn on a contrasting static image at maximum brightness for a very long period of time, the picture can SIMply be “imprinted” on the display and will always be visible.
Here’s what one of the most extreme OLED burn-in cases looks like on the Samsung Galaxy Note 8:
You can see afterimages of icons, google search strings and other elements on a white background perfectly. In fact, there should be nothing on the smartphone screen except the inscription at the top on a white background.
But no one is immune from partial burnout.
The pulsation of light is a rather unpleasant and harmful phenomenon. Many of us have felt the effects of being in a room lit by poor, very flickering fluorescent lamps. This is a headache, and irritation in the eyes, and fatigue.
What’s the connection between an OLED screen and flickering lights? Unfortunately, it’s straight. The brightness control of AMOLED screens is arranged as follows. When we turn the brightness to maximum, the small LEDs operate at a high frequency.
But as soon as we start to lower the brightness, an interesting phenomenon occurs. Instead of reducing the current strength, the diodes begin to work with small pauses. Figuratively speaking, if at 100% brightness, the diodes burned for 0.9 ms for 1 second, then at 50% brightness, the LEDs will work for 0.45 ms for 1 second. This is a conditional explanation, and detailed material will be released on Deep-Review a little later.
Such flickering has a rather bad effect on the human body and it is not only about discomfort in the eyes, which many users SIMply do not feel. The consequences are much broader, but this is already a topic for another conversation.
By the way, in all further reviews of smartphones on Deep-Review, we will test their OLED screens for PWM and provide detailed information on the effect of each tested device on the human body.
This is exactly what Apple calls this problem on its official website, saying that this is completely normal. And the company also considers display burnout to be a normal phenomenon, calling it “a feature of OLED technology”.
What is this about? When you tilt the OLED screen slightly in different directions, you will notice colored streaks floating across the display. Sometimes these are pink spots, sometimes green, sometimes a combination of these shades. They shift depending on the angle of inclination.
However, it should be noted that this effect is not observed on all screens with the same intensity. On some models it is almost invisible, on others it is pronounced. And here already. how lucky.
Well, an important factor is the cost of the displays. The IPS screen is noticeably cheaper than the OLED counterpart. This applies not only to the purchase of a new device, but also to the cost of repairs in the event of a breakdown. For example, the official cost of replacing the 5.8 ″ OLED display of the iPhone 11 Pro on the Apple website is 280, while the larger IPS display (6.1 ″) of the iPhone 11 costs 199, and the smaller screen (iPhone 8) costs 149.
The main advantages of OLED displays
Contrast is the difference between the brightest white pixel and the darkest black pixel on the screen. Contrast is measured in the ratio X: 1, where X is the maximum brightness. That is, if the contrast is 1000: 1, this means that the smartphone screen is capable of displaying white 1000 times brighter than black.
And given the fact that in an OLED display, black is a completely off diode with a brightness value of 0, any X: 0 ratio will be wrong. It’s like comparing the brightness of the screen off to the brightness on.
It is impossible to achieve perfect black on an IPS screen, since perfect black is the absence of light, and as we have already figured out, the IPS screen is constantly lit. And even if at right angles the black can seem really very deep, then at the slightest deviation of the IPS screen, especially in the dark, the advantage of the OLED display will be obvious.
AOD mode and energy saving
Smartphones with OLED screens support an interesting mode of operation called Always On-Display. Some information is displayed on the smartphone display even in the off state:
This is possible thanks to the features of the OLED matrix. We can easily enable only individual pixels on the screen to display the time and missed notifications. In the case of an IPS matrix, the entire screen will glow, albeit in black.
If on an OLED matrix, black is a disabled pixel, then on an IPS matrix, black is a completely lit backlight, which we do not see due to the fact that the second polarizer extinguishes the light wave.
Thus, choosing the design of the smartphone interface in dark colors, you can save energy on the OLED display, and for the IPS matrix it does not matter which color to display. the lamp is always on and illuminates all the pixels.
Maximum viewing angles
If you look at the screen of any smartphone, even from a slight angle, a drop in brightness is observed. And the IPS matrix is much worse with this than the OLED.
For example, if you look at an iPhone with an IPS screen at an angle of 30 degrees, the brightness drop will be 55%. For comparison, at the same angle, the brightness drop on an iPhone with an OLED screen will not exceed 25%.
As for changing the color rendition, neither modern IPS-screens nor AMOLED have problems with this.
Uniformity of “backlighting”
As we know, there is no concept of “backlighting” on an OLED screen. Unlike IPS screens, lamps are not used here, so AMOLED screens do not have any problems associated with backlighting (so-called “light leaks”).
But the problem with IPS displays is that their backlighting doesn’t look exactly the way I sketched it above. There is no huge lamp behind the screen.
In most cases, an IPS-screen is illuminated by several diodes located along the bottom edge of the screen, the light passes through a special flexible scattering material. a thin film the size of a screen:
This design has its drawbacks. Firstly, on many screens, you can clearly see a brighter strip at the bottom, where the diodes are located. And secondly, any problem with the film, through which light is scattered, or imperfect assembly, in which the light of the bulbs is not completely blocked, can lead to all kinds of backlight defects, especially clearly visible in the dark:
This photo shows very clearly the light leakage problems against the black background. Nothing like this can be on OLED screens.
At one time, the invention of IPS-displays allowed the creators of smartphones and tablets to make a big leap in the quality of the displayed picture. For the first time, mobile devices have approached plasma TVs in this parameter! Now smartphones could boast of almost maximum viewing angles, and the color rendition began to please the eye.
The IPS matrix is made up of parallel thin-film transistors. Or liquid crystals, as they are often called. Another difference from the TFT display is the fact that the crystals do not rotate in the absence of voltage (when it is necessary to achieve a black display). It is these two properties that lead to the fact that the colors are almost not distorted, no matter what angle the viewer chooses. It is also clearly noticeable that the IPS-screen gives out deeper blacks, especially its expensive variation, built into flagship smartphones or expensive TVs.
The structure of each subpixel
IPS display: what is it?
Nowadays, most smartphones are equipped with an IPS screen. What are the advantages of such a matrix?
For a long time, computer monitors and mobile phones were equipped with TFT displays. It seemed that the capabilities of such a matrix are quite enough for viewing a high-quality picture. But gradually it turned out that there are other technologies that can significantly increase viewing angles, as well as improve color rendering. One of these technologies is IPS, which will be discussed in this article.
Disadvantages of IPS matrices
The parallel arrangement of pixels also plays a negative role. Unfortunately, the IPS screen has a long response time. If the developers did not use expensive tricks, then this parameter will be approximately 5-8 ms. For a TFT matrix, this parameter usually does not exceed 2-3 ms. Of course, in ordinary life, a person is unlikely to notice such a difference. Only a few games feel decent response time. In this case, we are talking about games for PlayStation 4 and Xbox One, on a smartphone such problems are not felt at all.
Another disadvantage of the technology is its high power consumption. Whatever one may say, smartphones with IPS-display use up the charge quite quickly. This is due to the fact that it is much more difficult to rotate an array of crystals located parallel to each other (this is necessary to show one color or another). this requires more voltage. That is why phones with IPS screens are usually equipped with either a capacious battery or an energy efficient processor.
Subpixel behavior at different brightness
But the price cannot be definitely included in the disadvantages. Of course, TFT matrices are still cheaper, which is why they are still built into push-button mobile phones. But the difference is no longer so great, so even ultra-budget smartphones based on Android are increasingly getting an IPS display. But you need to understand that not all screens created using this technology are the same. The cheapest ones still have some color distortion when viewed from certain viewing angles. But even such matrices give a much better picture than TFT products.
Which display is better: IPS or AMOLED?
Of course, a comparison with much more expensive screens made using AMOLED technology suggests itself now. Such matrices are created on the basis of organic light-emitting diodes. That is, their pixels are not only located parallel to each other, due to which the maximum viewing angles are achieved, they also glow independently! In this regard, the OLED-based display provides deeper blacks, and therefore the realism of the picture is significantly increased.
So AMOLED vs IPS. Who wins? A more expensive matrix, of course. It’s not for nothing that OLED screens are built into the most advanced TVs. The difference between the two types of displays is very easy to notice, especially when comparing the matrices built into relatively inexpensive smartphones. Nevertheless, we must not forget that only Samsung has established the production of compact AMOLED displays in normal volumes. Of course, South Koreans sell some of their products to the side, but AMOLED screens are still rare in other smartphones. In this regard, buyers do not have to choose. if the amount allocated for the purchase of a device is not very large, then they will have to look for a device with an IPS screen.
IPS technology will not be forgotten for a very long time. Now the screens made using it have the best value for money. Do not buy a smartphone equipped with a TFT display. this technology is already outdated. Well, you only need to think about an AMOLED screen if you have a fairly large free amount.
OLED technology (organic light-emitting diode) is based on the manufacture of displays based on organic light-emitting diodes. The main technical difference between such products from IPS predecessors is the absence of external backlighting. In a more modern solution, OLEDs are self-emitting. All that is needed for this is to supply them with food. Therefore, OLED matrices have a film structure located between two conductors.
Benefits of OLED displays:
- Minimum thickness. Due to the fact that modern matrices lack a layer of LED backlighting, they are thinner. Thanks to this, the developers managed to reduce the thickness of the gadgets in which such displays are installed.
- Deep black color. Organic LEDs, which are responsible for black, are completely switched off without emitting a glow. This makes the black color as deep and saturated as possible.
- Low power consumption. OLED displays do not have LED backlighting that is constantly on. This reduces the overall power consumption of the matrix.
- Maximum viewing angles. User’s position relative to the display plane does not affect image quality.
- High contrast. Due to the ability to obtain deep blacks, the contrast of the matrix has increased.
No display technology is perfect, so OLEDs also have several disadvantages:
- High price. The technology itself for manufacturing OLED displays is quite expensive, so they are usually installed exclusively in high-tech gadgets. The final product is quite expensive.
- Burnout organic LEDs. Since each OLED matrix LED independently emits light, it has its own limited resource. Every year, developers are trying to optimize the performance of such displays to increase their lifespan.
- The predominance of blue. This is a minor but noticeable drawback of OLED displays. As a result of the constant glow, blue is perceived brighter than red and green. Developers are trying to remove this effect by introducing additional technologies.
Amoled and Super Amoled
There is a lot of controversy on the web over the differences between OLED and Super Amoled displays. What exactly is an Amoled screen? OLED technology offers two ways to control pixels: active and passive. So, the Amoled display is made on the basis of an active matrix, hence the name of this type of screen. Active Matrix Organic Light-Emitting Diode.
In fact, all modern OLED matrices have active control, so you can safely put an equal sign between them and Amoled displays. Super Amoled is a product of Samsung, which gave this name to the screens of its new smartphones. Initially, the developers explained the term by the fact that they managed to remove the air gap between the OLED matrix films. However, other Amoled displays also have such a structure, so the Super prefix has a more marketing purpose.
Which screen is better than IPS, OLED or Super Amoled
Just a few years ago, smartphone users were content with TFT displays. They were made using technology based on thin-film transistors and were quite satisfied with the image quality of consumers. But with the development of the electronics industry, developers have managed to reach a completely new level.
Changes for the better began with the advent of IPS matrices, which had maximum viewing angles and a bright picture. Soon they began to be replaced by OLED, Amoled displays. But which one actually provides a quality image, and is not just another marketing gimmick? We will try to answer this question in this article.
What are IPS matrices
The liquid crystal IPS displays are manufactured using a special technology based on a new way of positioning the control electrodes. In these matrices, they are located in one plane parallel to the screen. Thanks to this change, the display image has become brighter and more saturated. Smartphone manufacturers immediately applied this development in the manufacture of screens for their gadgets.
Advantages of an IPS matrix:
- A properly configured IPS display has excellent color reproduction. Each pixel of the matrix reproduces color as accurately as possible, making the image rich and realistic.
- Stable power consumption. Unlike LED organic matrices, liquid crystals practically do not consume electric current. Only the backlight needs power, so the load is fixed. This allows you to optimally select the battery and optimize the battery life when watching movies, playing games or surfing the Internet.
- Long service life. IPS matrices based on liquid crystals have minimal wear, therefore they are durable.
- Cost. LCD displays made using IPS technology belong to an affordable price category, in comparison with many modern solutions, while providing good image quality.
Despite the numerous advantages of IPS matrices, they also have certain disadvantages:
- Long response time. Since each pixel of the IPS display is not excited by its own power supply, but depends on the LED backlight, this factor significantly slows down the reaction of crystals to a signal.
- Low contrast. The brightness ratio of the lightest to darkest pixel in IPS displays is inadequate compared to current OLED solutions.
- Unsaturated black color. Permanent IPS LED backlighting fails to reproduce deep blacks.
Which display to choose
When choosing the optimal display, it is recommended to focus on the future and get a gadget with a modern OLED screen. This is truly an advanced technology that will eventually completely replace the IPS predecessors. OLED matrices have better color rendering, support 4K and VR content, are energy efficient and thinner.
The only significant drawback of such products is their high cost. Perhaps the price is too high at the initial stage and with the development of technology, developers will be able to offer a more affordable solution. For users with a limited budget, it is possible to choose an IPS matrix with high resolution and good color reproduction. As a result, the image quality on it can be even better than on OLED displays on some budget smartphones.
Human perception of a picture and image quality
If we talk about the advantages of AMOLED displays compared to IPS screens, then first of all they should include high contrast and improved color rendering. Blacks in AMOLED displays are more natural because the pixels in this area do not study light at all. In addition, in models with an IPS matrix, white suffers noticeably, since it is created by mixing other colors and, as a rule, has a bluish tint. Thus, the color rendering of AMOLED smartphones differs in its saturation.
But this technology also has its drawbacks. First of all, there are limitations in terms of brightness. Modern devices with AMOLED technology are inferior in this regard to LCD screens, which use the principle of LED display backlighting. In addition, in smartphones with IPS screens, the contrast and color saturation are worse, but at the same time the transmission of their shades is more natural.
What is an IPS display?
This is a liquid crystal screen created using IPS technology (also known as SFT). Two leading Japanese companies, NEC and Hitachi, were involved in the development of this technology, and its presentation to the general public was held in 1996. It should be noted that IPS-matrices were created in order to replace the less advanced LCD displays created using TN technology on the market.
First of all, IPS displays received a wider viewing angle, as well as improved color rendition and contrast. At the same time, the response time of such screens remains at a very low level. Over time, the technology became very widespread and began to be used in the production of computer monitors and various mobile gadgets. For example, many models of Xiaomi and Meizu smartphones use IPS matrices.
Lifetime and pixel burnout
A significant advantage of the IPS-matrix display is that it has a longer (compared to AMOLED screens) lifespan. The fact is that OLEDs can actually burn out. At the same time, within 1-2 years after the start of operation of the gadget, differences in the brightness of different areas may be noticeable.
This is an important indicator, since many modern smartphones can be quickly discharged with active use, which brings some inconvenience to their owner. Battery consumption of AMOLED displays directly depends on the brightness of the image on the screen. At the same time, phones with IPS-matrices tend to have more stable power consumption.
The response time of AMOLED screens is less than that of their liquid crystal counterparts. Thanks to this, the sharpness and clarity of the image becomes noticeably better. This is especially noticeable when playing video.
Which screen is better for a smartphone: IPS or AMOLED
Every year there are new technologies used in the creation of mobile gadgets. Some of them are used to improve the image quality on the phone display, making it more natural and pleasing to the eye.
By the way, the most popular types of smartphone screens today are IPS and AMOLED. But which of them should be preferred, because each of these technologies has both its own advantages and disadvantages. In this material, we will tell you about which type of screen you should choose based on the requirements that you place on the resulting picture and the gadget itself.
Which is better. IPS or AMOLED?
Very often, when choosing a smartphone, buyers are interested in what type of display to give preference to. It is impossible to give a categorical answer to this question, since both technologies have both their own advantages and disadvantages, depending on which aspects to pay attention to.
What is AMOLED?
This is the name of the technology that is used to create screens for various types of digital technology, including mobile phones, televisions and computer monitors. The abbreviation AMOLED is an abbreviation for “active matrix organic light-emitting diode”, which can be translated into Russian as “active matrix organic light-emitting diodes”.
As you might guess from the name, the technology is based on the principle of using organic LEDs and an active matrix. The difference between the latter and its passive counterparts lies in the fact that each of its pixels is regulated by one transistor or diode. This feature provides faster performance and better image quality. It is also worth noting the existence of Super AMOLED technology, which was patented by the South Korean manufacturing company Samsung.
Each type of display has its own advantages and disadvantages. The use of AMOLED technology allows for richer colors, better color reproduction and faster response times. But such screens also have disadvantages compared to liquid crystal IPS displays, namely higher cost and shorter lifespan due to the gradual burnout of OLEDs.
Advantages and disadvantages of IPS displays
IPS displays have been developed and improved for 2 decades, during this period the technology has managed to gain a number of advantages.
So, the main advantages of IPS matrices are:
- Availability. Over the long years of technology development, many companies have mastered it, making the mass production of IPS screens relatively cheap. So, the cost of a display with FullHD resolution now starts at about 10. The low cost of these screens made smartphones equipped with them more affordable for users.
- Color rendering. If the IPS screen is well calibrated, then it will reproduce colors as accurately as possible. By the way, that is why IPS matrices are used in professional monitors for photographers, graphic artists, designers, etc. They have the greatest coverage of shades, so that colors on the screen are reproduced as realistically as possible.
- Fixed energy consumption. The liquid crystals that form the image on the IPS screen practically do not consume current, the main consumer of which is the backlight diodes. In this regard, the power consumption does not in any way depend on the picture on the screen and is determined only by the backlight level. Fixed power consumption of IPS displays provides approximately equal device autonomy while watching movies, surfing the web, chatting on social networks, etc.
- Durability. IPS is also superior to AMOLED in terms of reliability, because liquid crystals practically do not age and do not wear out. Only the backlight LEDs can degrade, the service life of which is also very long and amounts to tens of thousands of hours. That is why even after five years the display retains almost all of its original brightness.
Disadvantages of IPS matrices
Despite the significant advantages, IPS also has disadvantages, and fundamental ones, which are extremely difficult to eliminate through the development of technology. Let’s take a look at each of them:
- Insufficiently deep black color. The problem is that liquid crystals, which display black, block the light coming from the backlight not one hundred percent. Since the backlighting of the IPS display is common to the entire matrix, its brightness does not decrease and the panel remains constantly illuminated. As a consequence, this negatively affects the depth of black.
- Low contrast. In general, the level of contrast of such matrices is acceptable for comfortable perception of the image, but still, according to this indicator, AMOLED displays are ahead of IPS screens. Due to the shallower blacks, the difference between the darkest and brightest pixels in IPS displays is less than that of competing LEDs.
- Significant response time. IPS matrices do not have a very high pixel response rate, somewhere within ten milliseconds. On the one hand, this is enough for comfortable perception of the image when watching a video, on the other hand, this is not enough, for example, for VR content, as well as for other resource-intensive tasks.
Which is better AMOLED or IPS? All the pros and cons of smartphone screens.
Greetings to all! As a rule, modern smartphone manufacturers install liquid crystal (IPS) or organic (AMOLED) displays in their devices. At the moment, both technologies have undergone a lot of significant changes, due to which the image quality has improved markedly. Nevertheless, the debate over which of these two matrices is better is still ongoing.
Today, the competition between display types has boiled down to rivalry between two worthy options. AMOLED and IPS. The rest of the matrices were replaced or completely ceased to be used in mobile devices.
The most famous smartphones with IPS screens are Apple brand products, as well as budget and mid-budget models, such as:
- iPhone XR
- iPhone 11
- iPhone 7/7 Plus, iPhone 8/8 Plus
- Honor 20 Pro
- Huawei P30 Lite
- Xiaomi Redmi Note 7 and others.
If we talk about OLED displays, then they are installed on almost all flagships, and are also found in mid-range phones. For example, these are such popular smartphones as:
- Samsung Galaxy S and Note series
- iPhone 11 Pro, iPhone XS, iPhone X
- Xiaomi flagships
- Huawei flagships
- Sony Xperia 1 and Xperia XZ3
- And many others
Quite a lot has already been said about which screen is better than AMOLED or IPS. Both matrices are constantly improving, getting rid of shortcomings, their negative sides are becoming less and less significant. Now we will try to find out which screen is better, consider all the advantages and disadvantages of each technology.
Pros and cons of AMOLED displays
OLED technology involves the use of arrays of miniature LEDs that are located on a matrix. They are independent, therefore they have their own advantages over IPS, but they also have disadvantages.
The advantages of AMOLED displays are:
- AMOLED technology is newer than IPS technology, so its creators were able to largely eliminate the disadvantages characteristic of liquid crystal screens.
- Separate pixel glow. The peculiarity of AMOLED displays is that each pixel is an independent light source. The system manages each such element independently of the others. When black is displayed, the corresponding pixel is not lit, and when mixed shades are displayed, it is brighter. This is why AMOLED screens exhibit excellent contrast and maximum black depth.
- Almost instant reaction. The pixel response rate of LED matrices is significantly higher than that of IPS displays. These panels are capable of reproducing a dynamic image with a high level of frame rate. This makes the picture smoother. This feature improves gameplay in games and is useful for better interaction with VR.
- Lower power consumption when displaying dark tones. As I said before, each pixel on this matrix glows independently. And the lighter the color of a pixel, the brighter it is, and vice versa. Therefore, while displaying dark tones, AMOLED screens consume less power than IPS displays. But it should be borne in mind that displaying white color, AMOLED panels will consume a SIMilar, and sometimes even more battery power than IPS screens.
- Small thickness. Given the fact that these panels do not have a layer that scatters light from the backlight into crystals, AMOLED displays are thinner. Thanks to this, the manufacturer can reduce the size of the smartphone, while maintaining the reliability of the device and without reducing the battery capacity. Also, there is potentially the possibility of creating not only curved, but also flexible AMOLED matrices, which is impossible for IPS.
Disadvantages of AMOLED matrices
But AMOLEDs also have their drawbacks. Most of them are caused by blue LEDs. I note that they have a more complex production, and at the same time lower quality than the red and green ones. So, the main disadvantages of AMOLED matrices are:
- PWM or blue. When purchasing a smartphone with an AMOLED display, you have to choose between the blueness of light tones and pulse width control of the brightness level. This is due to the fact that blue subpixels will be perceived more strongly than green and red ones during continuous light. To correct this phenomenon, PWM dimming is used, but in this case another drawback appears. With the maximum brightness of the screen, PWM is absent or remains at the border of perception and practically does not affect the eyes. But when the backlight level is low, the PWM frequency also decreases. As a consequence, low levels of flicker, which are around 60 Hz, can cause eye fatigue.
- Blue burnout effect. The problem here also lies in the blue diodes, which have a shorter lifespan than the green and red ones. In this regard, with long-term use, there is a possibility of distortion of the natural reproduction of colors. In this case, the display will turn yellow, the overall color rendition will worsen, and warm tones will prevail in the white balance.
- Memory effect. Since miniature LEDs are prone to fading, areas of the screen displaying bright, static images, such as a clock, may lose their original brightness over time. As a result, in such places, silhouettes of these elements can be seen, even if they are not currently displayed.
- Another fundamental drawback of these panels is the PenTile structure, which, unfortunately, is still typical for many matrices. This structure assumes the presence of an unequal number of green, red and blue subpixels in the matrix. Typically, PenTile technology is used to compensate for the imperfections of blue LEDs. Unfortunately, this solution has a side effect of reduced image clarity, which is especially noticeable when using VR headsets.
So, if you analyze all the pros and cons, you can make an unequivocal conclusion that it is impossible to better, AMOLED or IPS. Each technology has its own advantages and disadvantages. At the same time, there is always a regularity. the more expensive a smartphone is, the less are the disadvantages of its display and, accordingly, its advantages are more noticeable.
Given the peculiarities of these matrices, we can say that IPS screens with high resolution are preferable if you are primarily interested in maximum image clarity, you spend a lot of time surfing the web, instant messengers and, in general, work more with light colors.
On the other hand, AMOLED displays are gaining more and more popularity; it is their leading companies that install them in the most expensive and prestigious smartphones. It is clear that AMOLED screens are the future, and although this technology is not yet ideal, you can already buy a flagship smartphone equipped with a high-quality LED display and enjoy its high brightness, contrast and deep blacks.
Write in the comments which type of matrix you think is more reliable and preferable today. a relatively new AMOLED or a proven IPS? Well that’s all for now!
What is an IPS matrix, and what advantages does it have
1.2. Advantages of an IPS matrix
IPS displays have a number of undeniable advantages that are visible to the naked eye:
- The most natural color rendition;
- Excellent brightness and contrast of the screen;
- Accuracy and clarity of the image. It should be noted that in IPS displays the pixel grid is practically invisible to the naked eye, which makes the image even more accurate and pleasing to the eye;
- Low power consumption;
- High screen resolution. Speaking of resolution, it should be understood that the vast majority of modern IPS screens have a Full HD resolution of 1920 × 1080.
Of course, like any other IPS technology, it also has its drawbacks, however, they are minor:
- Slow response. But this is absolutely invisible to the naked eye, and if you compare with the “fastest” (in 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 the IPS screen, but this parameter is by far the best among analogues. If we compare IPS with TNFilm 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 than IPS or superAmoled, it is worth understanding that not all IPS displays are equally good, since there are different types of IPS matrices. At the same time, Amoled is a development of Samsung and they are released only under the brand of the same name, so Amoled screens practically do not differ from each other.
Which is better Super Amoled or IPS matrix
In constant competition and race between manufacturers, every year new technologies are born that surpass their predecessors in all respects. This also applies to manufacturing technologies for modern displays. Just imagine, some 15-20 years ago we knew only CRT CRT 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 lightweight as possible.
In addition, modern types of matrices are distinguished by the highest image accuracy, high resolution and quality. In this article, we will focus on two modern technologies. Amoled (S-Amoled) and IPS. This knowledge will help you make the right choice for your requirements. But in order to understand which display is better in a given situation, it is necessary to disassemble both technologies separately.
2.1. Benefits of Super Amoled Matrices
If we talk about touch screens, then first of all it is worth noting that this type of screens is distinguished by higher sensitivity and quick response to user gestures. In addition, there are other benefits:
- The highest brightness among all types of screens;
- Largest viewing angles;
- High saturation and maximum number of 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;
- Screen life is one of the longest.
1.1. Comparison of Super Amoled and IPS matrices
Despite the fact that the first IPS-displays were developed back in 1996, this technology has gained popularity and mass distribution among consumers only in the last few years. During this time, IPS matrices have undergone a lot of changes and improvements, which allowed us to provide users with high-quality displays that display the most natural colors. In addition, IPS matrices have high definition and image accuracy.
When asking which screen is better than IPS or Amoled, it is worthwhile to understand 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 rendition. It is due to this quality that such screens are in great demand among professional photographers and photo editors.
Super Amoled Matrix
This type of display was developed in 2009 by Samsung. The main and only purpose of the development of this screen is its use in mobile phones, smartphones, tablets and other mobile devices with a 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 that there is no air gap between the layers of the second type of screen (S-Amoled).
This solution made the screen even thinner. This also increased the brightness of the display by 20%. At the same time, energy consumption remained at the same low level. In theory, these 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. Of course, a comparison of IPS and Super Amoled shows that S-Amoled wins in this parameter, but in any case, in direct light, the picture becomes difficult to distinguish.
Super Amoled vs IPS
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, then the clear leader is Super Amoled. Also, S-Amoled touchscreens have higher sensitivity than IPS, which provides faster and more accurate response to user commands.
IPS technology, in turn, has a finer and more invisible pixel grid. However, to see it, you must use a magnifying glass. With the usual visual inspection, this difference is practically not visible.
Knowing all these differences, you will be able to understand which display is the best IPS or Super Amoled in a given situation. Any advice in this case cannot be given, because both screens have high quality, image accuracy and clarity, as well as display resolution.