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Service24 HoursWarm Reminder:1. Please do not fold the flex cable of the LCD screen while installation in case of no after sale service.2. Once shipment arrive, please CHECKif products in GOOD condition.3. We offer FREE EXCHANGEfor all faulty parts that we shipped( Except Man Made Destroy)Features:1.For replacing broken, cracked, damaged, unusable one, making your device as new as before.2. Large quantity in stock and quick mass production capacity.3. Individual white box for inner packing, and Carton for outer packing.4.Excellent after-sale service.5.We will share and update with you the latest information for mobile phone.6.BestLCD Replacementfor your mobile phone.Customized Service:We offer customized such as Box, Logo, Stamp ,Fragile Label etc.We are factory from china with more than 10 years experience, always offering the most competitive whole sale price.

If you need to repair your phone screen you may have been looking into different types of screen replacements. You’ve probably heard of the acronyms LCD and OLED in TVs before, but what are the differences between LCD and OLED screens and what will be best for your phone?

LCD or Liquid Crystal Display has been the standard for computer, tablet, and phone screens for the past decade. These screens offer great brightness, high definition, and are becoming relatively inexpensive. We tend to see LCD screens on the less expensive cell phone models, today. LCD screens can have great HD quality and have good performance in direct sunlight but tend to be more inefficient when it comes to power consumption compared to an OLED screen.

Over the past few years, many companies have been switching to newer screen technology: OLED displays. OLED, which stands for organic light-emitting diode, is being used on all of the latest flagship devices. They tout amazing contrast of color, they’re lighter and flexible and tend to be more efficient than LCDs. OLED technology is being used for curved edge phones like theGalaxy S10+and theGalaxy S20, S20+, and S20 Ultra 5G. OLEDs have also been used in folding smartphone displays like theSamsung Galaxy Fold, the newMotorola razrsmart flip phone, and theSamsung Galaxy Z Flip.

OLED displays are being used by Apple in their iPhone 11 Pro Max, 11 Pro, XS Max, XS, and X. iPhone X flagship series and newer will come with OLED. Both flagship Samsung Galaxy S and Note Series have OLED displays as the standard on all recent devices including the Samsung Galaxy S10 and Note 10 series, S9+, S9, Note 9, S8, S8+, Note 8, and so on. These phones also all have OLED displays: LG V40, LG V30, Huawei P30 Pro, Huawei Mate 20 Pro, OnePlus 6T, and the Motorola Moto Z2 Force Edition.

The iPhone 11 and the XR still use LCD displays as well as all other iPhones that came before the X series including the iPhone 8, iPhone 8 Plus, iPhone 7, iPhone 7 Plus, iPhone 6s, and so on. Basically, any iPhone with a Home Button will have a LCD screen on it. The LG G7 ThinQ, LG G6, Moto E5, and Moto E6 all have LCD displays as well.

When getting your device repaired, it is a good idea to use the display type that was originally installed on your phone. For example, if you have the iPhone X, which comes with an OLED display, ideally, you will want to get an OLED replacement. This will keep your phone running as efficiently as possible. If you need a more economical solution it is sometimes possible to get an LCD replacement, but keep in mind that they can drain your battery faster and may not have the same color contrast and may not be optimized for your phone.

One of the easiest ways to determine which display type you have is to go to a true black screen – you can search for this on Google Images. If your display type is LCD your pixels will still be displaying a dark gray light. If you have an OLED display the screen will be totally black. It is easier to tell when this experiment is performed in a dark room. You can also searchGSMArenafor your phone and then view its display type.

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A4:We can provide OEM/OLED/INCELL/TFT and more quality. For repair services, we recommend TS8-incelland OG-OLED quality as they are stable and cost-effective.

Shopping for a new TV sounds like it could be fun and exciting — the prospect of a gleaming new panel adorning your living room wall is enough to give you goosebumps. But with all the brands to choose from, and different smart capabilities (we can explain what a smart TV is) to weigh, as well as the latest picture tech to consider, it can be daunting. Is this article, we compare OLED vs. LED technology to see which is better for today’s modern TVs. Once you determine which panel type is best for you, make sure you check out our list of the best TVs to get our editor’s recommendations.

If you’re in the market for a TV, you’ve likely heard the hype regarding OLED models. They’re thin, light, and offer incredible contrast and color that’s second to none. OLED is only one letter apart from the more common display type, LED, so what gives? Can they really be that different? In a word: Yes. That extra “O” makes a big difference, but it doesn’t automatically mean an OLED TV will beat an LED TV in every use case. Some TV manufacturers like Samsung use their own technology, called QLED to confuse consumers even more. Make sure that you spend some time looking at our comparison piece: QLED vs. OLED technology before you make your purchase decision.

When OLED TVs first arrived in 2013, they were lauded for their perfect black levels and excellent color, but they took a bit of a hit due to brightness levels that couldn’t compete with LED TVs. There was also a huge price gap between OLED TVs (not to be confused with QLED) and their premium LED counterparts. In fact, legend has it that OLED used to mean “only lawyers, executives, and doctors” could afford them. Thankfully, that’s no longer the case.

OLED TVs are much brighter than they used to be, and the prices have come down, especially with brands like Sony introducing competitive options in 2021. The LED market is due for a bit of a shake-up, too. For now, however, it’s time to take a look at how these two technologies differ and explore the strengths and weaknesses of each.

Non-OLED TVs are made of two main parts: An LCD panel and a backlight. The LCD panel contains the pixels, the little colored dots that make up a TV’s image. On their own, pixels cannot be seen; they require a backlight. When light from the backlight shines through an LCD pixel, you can see its color.

The “LED” in LED TV simply refers to how the backlight is made. In the past, a thicker and less-efficient technology called CCFL (cold-cathode fluorescent light) was used. But these days, virtually every flat-screen TV uses LEDs as its source of backlighting. Thus, when you see the term “LED TV,” it simply refers to an LED-backlit LCD TV.

That said, not all LED TVs are created equal. There can be differences in the number and quality of the LEDs used, which leads to differences in things like brightness and black levels. You may also have seen something called “QLED TV.” This is a type of LED TV that uses quantum dots to achieve better brightness and color. We’ll discuss QLED more below, but here’s a great overview of the differences between QLED and OLED TVs.

The “OLED” in OLED TV stands for “organic light-emitting diode.” OLEDs have the unusual property of being able to produce both light and color from a single diode when they’re fed electricity. Because of this, OLED TVs don’t need a separate backlight. Each pixel you see is a self-contained source of color and light.

Some of the inherent benefits of OLED screens are that they can be extremely thin, flexible, and even rollable. But the biggest benefit when we compare them to LED TVs is that each individual pixel receives its own luminance and power (as opposed to LED TVs, which have persistent pixels that require an external source of light to see). When it’s on, you can see it. When it’s off, it emits no light at all — it’s completely black. We’ll discuss how this affects black levels in a moment.

Currently, LG Display is the only manufacturer of OLED panels for TVs, famed for top-line models like the CX. Sony and LG have an agreement that allows Sony to put LG OLED panels into Sony televisions — like the bright X95OH — but otherwise, you won’t find OLED in many other TV displays sold in the U.S.

The differences in performance between LG’s OLED TVs and Sony’s result from different picture processors at work. Sony and LG have impressive processors that are also unique to each brand, which is why two TVs with the same panel can look drastically different. A good processor can greatly reduce issues like banding and artifacting and produce more accurate colors as well.

Other brands that source panels from LG include Philips, Panasonic, HiSense, Bang & Olufsen, and more. You’ll also see lesser-known brands sparingly, but for now, they’re all getting their panels from the same source.

Samsung does make OLED smartphone panels, and the company recently announced it would start building new TV panels based on a hybrid of QLED and OLED known as QD-OLED, but it will be a few more years before we see the first TVs that use this technology.

Though they don really similar acronyms, an OLED TV is not the same as a QLED TV. The latter is actually based on LED tech, but it uses a technique that overlays self-emissive quantum dots over the pixels that help produce better brightness, vividness, and color accuracy. QLED is more of an iterative step than a generational leap, and though we’d certainly recommend buying one if OLED is out of reach, expect its eventual deprecation as technologies like quantum dot OLED (QD-OLED) and microLED take hold.

Despite the name, microLED has more in common with OLED than LED. Created and championed by Samsung, this technology creates super-tiny, modular LED panels that combine light emission and color like OLED screens do, minus the “organic” part. For now, the technology is primarily being used for extra-large wall TVs, where colors, blacks, and off-angle viewing are excellent but with more potential for greater brightness and durability than OLED TVs.

For the average consumer, microLED isn’t anything to consider yet. It remains difficult to scale down to less-than-gigantic TVs, and it’s unlikely to hit homes for another couple of years when it will still be exceedingly expensive. Of course, that was once true of OLED, which is why this tech is worth keeping an eye on for a future TV replacement.

Now it’s time to pit these two technologies against each other and see how they stack up when it comes to traits such as contrast, viewing angle, brightness, and other performance considerations.

Editor’s note: Since OLED TVs are still a premium display, we have compared OLED only to equally-premium LED TVs armed with similar performance potential (except, of course, in the price section).

A display’s ability to produce deep, dark blacks is arguably the most important factor in achieving excellent picture quality. Deeper blacks allow for higher contrast and richer colors (among other things) and thus a more realistic and dazzling image. When it comes to black levels, OLED reigns as the undisputed champion.

LED TVs rely on LED backlights shining behind an LCD panel. Even with advanced dimming technology, which selectively dims LEDs that don’t need to be on at full blast, LED TVs have historically struggled to produce dark blacks and can suffer from an effect called “light bleed,” where lighter sections of the screen create a haze or bloom in adjacent darker areas.

OLED TVs suffer from none of the black-level problems of traditional LED TVs. If an OLED pixel isn’t getting electricity, it doesn’t produce any light and is, therefore, totally black. Sounds like an obvious choice to us.

When it comes to brightness, LED TVs have a considerable advantage. Their backlights can be made from large and powerful LEDs. With the addition of quantum dots, that brightness can be preserved even as the size of the individual LEDs get smaller. OLED TVs can get pretty bright, too, and with such dark black levels, the contrast between the brightest and darkest spots on screen is all the more exaggerated. But cranking OLED pixels to their maximum brightness for extended periods reduces their lifespan, and the pixel takes slightly longer to return to total black.

With those considerations in mind, it’s important to note that all modern TVs — whether OLED, LED, or QLED — produce more than adequate brightness. The consideration then becomes where the TV will be used. In a dark room, an OLED TV is going to perform best, while LED TVs will outshine them (quite literally) in more brightly lit environments.

It should also be noted that there have been big gains recently in OLED brightness, making them perfectly suitable for nearly any situation, save direct sunlight beaming onto the screen. Still, when compared directly, LED TVs have the edge.

OLED used to rule this category, but by improving the purity of the backlight, quantum dots have allowed LED TVs to surge forward in color accuracy, color brightness, and color volume, putting them on par with OLED TVs. Those looking for TVs with Wide Color Gamut or HDR will find both OLED and LED TV models that support these features. OLED’s better contrast ratio is going to give it a slight edge in terms of HDR when viewed in dark rooms, but HDR on a premium LED TV screen has an edge because it can produce well-saturated colors at extreme brightness levels that OLED can’t quite match.

Response time refers to the time it takes for each individual pixel to change states. A pixel’s state is not only its color but also its brightness. With a faster response time, you get less motion blur and fewer artifacts (source material notwithstanding).

Because OLED pixels combine the light source and the color in a single diode, they can change states incredibly fast. By contrast, LED TVs use LEDs to produce brightness and tiny LCD “shutters” to create color. While the LED’s brightness can be changed in an instant, LCD shutters are by their nature slower to respond to state changes.

Refresh rate is how often the entire image on-screen changes. The faster the rate, the smoother things look, and the easier it is to pick out details in fast-moving content like sports. Most new TVs are capable of refresh rates of 120Hz, which means the entire image is updated 120 times every second. Some go as high as 240Hz.

If refresh rate were simply a matter of Hz, we’d call OLED TV the winner, simply because it can achieve rates of up to 1,000 times higher than LED TVs. But absolute speed isn’t the only consideration. Unlike movies and TV shows, which use a single refresh rate, video games often employ something called variable refresh rates, which simply means that the rate changes during different parts of a game. If a TV can’t match these rate changes, you end up with image tearing — a visible jerkiness that comes from the disparity between the rate the game is using and the rate the TV wants to use.

That’s why gamers, in particular, want TVs that can handle VRR or Variable Refresh Rate. It’s a rare feature on both OLED and LED TVs, but you can expect to see it show up on more models in both types of TVs. Right now, you can find VRR in certain Samsung, LG, and TCL TVs. But neither OLED nor LED TVs have a real advantage when it comes to VRR; some models have the feature, and some don’t. Your gaming system also has to support VRR, though that shouldn’t be much of an issue if you own a new Xbox Series X, PS5, or even a PS4/One X.

Finally, input lag is the gap in time between when you press a button on a game controller and the corresponding action shows up on-screen. Input lag can be a problem when TVs introduce a lot of picture processing that causes a slow-down in the signal they receive. But most modern TVs have a game mode, which eliminates the processing and reduces input lag to barely discernible levels. In the future, all TVs will be able to sense the presence of a video game and switch to this mode automatically, returning to the processed mode when gaming stops.

OLED, again, is the winner here. With LED TVs, the best viewing angle is dead center, and the picture quality diminishes in both color and contrast the further you move to either side. While the severity differs between models, it’s always noticeable. For its LED TVs, LG uses a type of LCD panel known as IPS, which has slightly better off-angle performance than VA-type LCD panels (which Sony uses), but it suffers in the black-level department in contrast to rival VA panels, and it’s no competition for OLED. Samsung’s priciest QLED TVs feature updated panel design and anti-reflective coating, which make off-angle viewing much less of an issue. While OLED still beats these models out in the end, the gap is closing quickly.

That said, OLED TVs can be viewed with no luminance degradation at drastic viewing angles — up to 84 degrees. Compared to most LED TVs, which have been tested to allow for a max viewing angle of 54 degrees at best, OLED has a clear advantage.

OLEDs have come a long way in this category. When the tech was still nascent, OLED screens were often dwarfed by LED/LCD displays. As OLED manufacturing has improved, the number of respectably large OLED displays has increased — now pushing 88 inches — but they’re still dwarfed by the largest LED TVs, which can easily hit 100 inches in size, and with new technologies, well beyond.

What size TV do you need? Here are a few tips for picking the right size TV for any room, including ideal viewing distance and picture quality versus size.

LG says you’d have to watch its OLED TVs five hours a day for 54 years before they’d fall to 50% brightness. Whether that’s true remains to be seen, as OLED TVs have only been out in the wild since 2013. For that reason and that reason only, we’ll award this category to LED TVs. It pays to have a proven track record.

Can one kind of TV be healthier for you than another? If you believe that we need to be careful about our exposure to blue light, especially toward the evening, then the answer could be yes. Both OLED and LED TVs produce blue light, but OLED TVs produce considerably less of it. LG claims its OLED panels only generate 34% blue light versus LED TV’s 64%. That stat has been independently verified, and LG’s OLED panels have been given an Eye Comfort Display certification by TUV Rheinland, a standards organization based out of Germany.

Will it make a difference to your overall health? We think the jury is still out, but if blue light is a concern, you should take a serious look at OLED TVs.

The effect we’ve come to know as burn-in stems from the days of the boxy CRT TV when the prolonged display of a static image would cause an image to appear to “burn” into the screen. What was actually happening was the phosphors that coated the back of the TV screen would glow for extended periods of time without any rest, causing them to wear out and create the appearance of a burned-in image. We think this should be called “burn out,” but we’ll set that one aside.

The same issue is at play with plasma and OLED TVs because the compounds that light up can degrade over time. If you burn a pixel long and hard enough, it will dim prematurely ahead of the rest of the pixels, creating a dark impression. In reality, this is not very likely to cause a problem for most people — you’d have to abuse the TV intentionally to get it to happen. Even the “bug” (logographic) that certain channels use disappears often enough or is made clear to avoid causing burn-in issues. You’d have to watch ESPN all day, every day for a long, long time at the brightest possible setting to cause a problem, and even then, it still isn’t very likely.

That said, the potential is there, and it should be noted. (This is also a contributing factor in the dearth of OLED computer monitors on the market, as computer screens are far more likely to display a static image for hours on end.) Since LED TVs aren’t susceptible to burn-in, they win this fight by a technicality.

OLED panels require no backlight, and each individual pixel is extremely energy-efficient. LED TVs need a backlight to produce brightness. Since LEDs are less energy-efficient than OLEDs, and their light must pass through the LCD shutters before it reaches your eyes, these panels must consume more power for the same level of brightness.

OLED TVs are premium TVs and almost always likely to be more expensive than an LED version of the same size. However, we have seen prices starting to drop down to manageable levels recently, especially if there are any discounts running. MSRPs can go as low as $1,300 to $1,500, but you probably won’t find many lower than that.

Conversely, LED TVs can range in price from a few hundred dollars — even for a quality big-screen model — to several thousand dollars, making them overall more accessible than OLEDs. While prices of the highest-quality LED TVs hover at nearly the same range as the price of OLEDs, when judged by price and price alone, LED TVs can still be acquired for a pittance in comparison.

In terms of picture quality, OLED TVs still beat LED TVs, even though the latter technology has seen many improvements of late. OLED is also lighter and thinner, uses less energy, offers the best viewing angle by far, and, though still a little more expensive, has come down in price considerably. OLED is the superior TV technology today. If this article were about value alone, LED TV would still win, but OLED has come a long way in a short time and deserves the crown for its achievements. Regardless of which technology you ultimately decide on, that’s not the only factor that you need to consider, so be sure to check our TV buying guide to make sure you’re buying the right TV to meet your needs.

According to The Elec (via AppleInsider) Apple will be using a hybrid OLED panel for the first iPad it produces with an OLED display, something that the report notes will be a few years from now. Currently, Apple uses an LCD backlit screen on its tablets which it calls a "Liquid Retina" display. The one exception is the latest 12.9-inch iPad Pro which uses a mini-LED backlit screen that Apple calls the "Liquid Retina XDR" display.

So what is a hybrid OLED panel? It is a panel that uses a combination of rigid and flexible OLED technologies. For example, a hybrid OLED panel would use rigid glass as a foundation with a plastic layer of flexible thin-film OLED on top. Apple does not want to use flexible OLED panels alone because they tend to crumple. This occurs from the heat used by lasers to remove a glass substrate that starts out as part of a flexible OLED panel during its production.

Besides being less likely to crumple, Apple might also like that hybrid OLED panels are thinner than rigid panels and should also be cheaper to produce than flexible panels. Apple currently uses flexible OLED panels for the iPhone. The report notes that if the issues (including the propensity of these panels to crumple) can be resolved, Apple could choose to use flexible OLED panels for the iPad instead of hybrid panels.

LG Display and Samsung Display are said to be working on an ultra-thin glass substrate for hybrid OLED panels. Replacing the current 5nm substrate with one measuring 2mm, the two companies are trying to reduce the thickness of hybrid OLED panels. The latest update reveals that the new technology is still at least one year away from being commercialized, but we are sure that Apple is closely monitoring the developments.

The reason why Apple and other phone manufacturers can get away with using flexible OLED panels for their handsets without crumpling issues is because this flaw isn"t as noticeable on smaller screens like the ones used for smartphones. However, the crumpling is noticeable on larger displays like the ones used for the company"s iPad tablets. And that is one of the reasons why Apple would probably choose to use a hybrid OLED panel instead of a flexible one for future iPad models.

Mini-LED backlit screens deliver some of the same features that users receive from OLED displays. The mini-LED displays use smaller LEDs as a backlight. Because of their smaller size, as much as 120 times smaller than the ones employed on traditional LCD screens, these panels have a larger number of LEDs behind the scenes. As a result, instead of the 72 LEDs used on the previous 12.9-inch iPad Pro model, there are 10,000 mini-LEDs used on the current model. They are arranged in four "dimming zones," each with 2,500 mini-LEDs, to provide the super 1,000,000:1 contrast that these screens can offer.

As we just noted, the mini-LED displays offer a high contrast ratio and they are less likely to suffer burn-ins which lead to a permanent image seen on a screen. They also deliver deeper blacks and more true-to-life colors. Last year an Apple executive explained that the mini-LED panel might make the 11-inch iPad Pro too heavy which is why the technology was only used on the larger 12.9-inch variant.

Keep in mind that mini-LED panels are considered the next step in LCD display technology. So even if Apple were to use it for all of its iPad models, the company would probably continue working toward the ultimate goal of offering OLED-screened iPad models. Due to cost though, we"d expect Apple to offer such a feature first on the pricier 12.9-inch iPad Pro just like it is doing with mini-LED.

For all the new technologies that have come our way in recent times, it’s worth taking a minute to consider an old battle going on between two display types. Two display types that can be found across monitors, TVs, mobile phones, cameras and pretty much any other device that has a screen.

In one corner is LED (light-emitting diode). It’s the most common type of display on the market, however, it might be unfamiliar because there’s slight labelling confusion with LCD (liquid crystal display).

For display purposes the two are the same, and if you see a TV or smartphone that states it has an ‘LED’ screen, it’s an LCD. The LED part just refers to the lighting source, not the display itself.

In a nutshell, LED LCD screens use a backlight to illuminate their pixels, while OLED’s pixels produce their own light. You might hear OLED’s pixels called ‘self-emissive’, while LCD tech is ‘transmissive’.

The light of an OLED display can be controlled on a pixel-by-pixel basis. This sort of dexterity isn’t possible with an LED LCD – but there are drawbacks to this approach, which we’ll come to later.

In cheaper TVs and LCD-screen phones, LED LCD displays tend to use ‘edge lighting’, where LEDs sit to the side of the display, not behind it. The light from these LEDs is fired through a matrix that feeds it through the red, green and blue pixels and into our eyes.

LED LCD screens can go brighter than OLED. That’s a big deal in the TV world, but even more so for smartphones, which are often used outdoors and in bright sunlight.

Brightness is generally measured as ‘nits’ – roughly the light of a candle per square metre. Brightness is important when viewing content in ambient light or sunlight, but also for high dynamic range video. This applies more to TVs, but phones boast credible video performance, and so it matters in that market too. The higher the level of brightness, the greater the visual impact.

Take an LCD screen into a darkened room and you may notice that parts of a purely black image aren’t black, because you can still see the backlighting (or edge lighting) showing through.

You’ll often see a contrast ratio quoted in a product’s specification, particularly when it comes to TVs and monitors. This tells you how much brighter a display’s whites are compared to its blacks. A decent LCD screen might have a contrast ratio of 1,000:1, which means the whites are a thousand times brighter than the blacks.

Contrast on an OLED display is far higher. When an OLED screen goes black, its pixels produce no light whatsoever. That means an infinite contrast ratio, although how great it looks will depend on how bright the screen can go. In general, OLED screens are best suited for use in darker rooms, and this is certainly the case where TVs are concerned.

OLED panels enjoy excellent viewing angles, primarily because the technology is so thin, and the pixels are so close to the surface. You can walk around an OLED TV or spread out in different spots in your living room, and you won’t lose out on contrast. For phones, viewing angles are extra important because you don’t tend to hold your hand perfectly parallel to your face.

Viewing angles are generally worse in LCDs, but this varies hugely depending on the display technology used. And there are lots of different kinds of LCD panel.

Perhaps the most basic is twisted nematic (TN). This is the type used in budget computer monitors, cheaper laptops, and very low-cost phones, and it offers poor angled viewing. If you’ve ever noticed that your computer screen looks all shadowy from a certain angle, it’s more than likely it uses a twisted nematic panel.

Thankfully, a lot of LCD devices use IPS panels these days. This stands for ‘in-plane switching’ and it generally provides better colour performance and dramatically improved viewing angles.

IPS is used in most smartphones and tablets, plenty of computer monitors and lots of TVs. It’s important to note that IPS and LED LCD aren’t mutually exclusive; it’s just another bit of jargon to tack on. Beware of the marketing blurb and head straight to the spec sheet.

The latest LCD screens can produce fantastic natural-looking colours. However, as is the case with viewing angles, it depends on the specific technology used.

OLED’s colours have fewer issues with pop and vibrancy, but early OLED TVs and phones had problems reining in colours and keeping them realistic. These days, the situation is better, Panasonic’s flagship OLEDs are used in the grading of Hollywood films.

Where OLED struggles is in colour volume. That is, bright scenes may challenge an OLED panel’s ability to maintain levels of colour saturation. It’s a weakness that LCD-favouring manufacturers enjoy pointing out.

Both have been the subject of further advancements in recent years. For LCD there’s Quantum Dot and Mini LED. The former uses a quantum-dot screen with blue LEDs rather than white LEDs and ‘nanocrystals’ of various sizes to convert light into different colours by altering its wavelength. Several TV manufacturers have jumped onboard Quantum Dot technology, but the most popular has been Samsung’s QLED branded TVs.

Mini LED is another derivation of LED LCD panels, employing smaller-sized LEDs that can emit more light than standard versions, increasing brightness output of the TV. And as they are smaller, more can be fitted into a screen, leading to greater control over brightness and contrast. This type of TV is becoming more popular, though in the UK and Europe it’s still relatively expensive. You can read more about Mini LED and its advantages in our explainer.

OLED, meanwhile, hasn’t stood still either. LG is the biggest manufacturer of large-sized OLED panels and has produced panels branded as evo OLED that are brighter than older versions. It uses a different material for its blue OLED material layer within the panel (deuterium), which can last for longer and can have more electrical current passed through it, increasing the brightness of the screen, and elevating the colour volume (range of colours it can display).

Another development is the eagerly anticipated QD-OLED. This display technology merges Quantum Dot backlights with an OLED panel, increasing the brightness, colour accuracy and volume, while retaining OLED’s perfect blacks, infinite contrast and potentially even wider viewing angles, so viewers can spread out anywhere in a room and see pretty much the same image. Samsung and Sonyare the two companies launching QD-OLED TVs in 2022.

And for smartphones there’s been a move towards AMOLED (Active-Matrix Organic Light Emitting Diode) screens for Android screens, while Apple has moved towards OLED for its smartphones and tried Mini LED with its iPad Pro. Technologies are consistently evolving with Superand Dynamic AMOLED versions available, more performance is being eked out.

While LED LCD has been around for much longer and is cheaper to make, manufacturers are beginning to move away from it, at least in the sense of the ‘standard’ LCD LED displays, opting to explore the likes of Mini LED and Quantum Dot variations.

OLED has gained momentum and become cheaper, with prices dipping well below the £1000 price point. OLED is much better than LED LCD at handling darkness and lighting precision, and offers much wider viewing angles, which is great for when large groups of people are watching TV. Refresh rates and motion processing are also better with OLED though there is the spectre of image retention.

If you’re dealing with a limited budget, whether you’re buying a phone, a monitor, a laptop or a TV, you’ll almost certainly end up with an LCD-based screen. OLED, meanwhile, incurs more of a premium but is getting cheaper, appearing in handheld gaming devices, laptops, some of the best smartphones as well as TVs

Which is better? Even if you eliminate money from the equation, it really comes down to personal taste. Neither OLED nor LCD LED is perfect. Some extol OLED’s skill in handling darkness, and its lighting precision. Others prefer LCD’s ability to go brighter and maintain colours at bright levels.

How do you decide? Stop reading this and go to a shop to check it out for yourself. While a shop floor isn’t the best environment in which to evaluate ultimate picture quality, it will at least provide an opportunity for you to realise your priorities. Whether you choose to side with LCD or OLED, you can take comfort in the fact that both technologies have matured considerably, making this is a safe time to invest.

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This article shows how to use the SSD1306 0.96 inch I2C OLED display with the Arduino. We’ll show you some features of the OLED display, how to connect it to the Arduino board, and how to write text, draw shapes and display bitmap images. Lastly, we’ll build a project example that displays temperature and humidity readings.

The organic light-emitting diode(OLED) display that we’ll use in this tutorial is the SSD1306 model: a monocolor, 0.96-inch display with 128×64 pixels as shown in the following figure.

The OLED display doesn’t require backlight, which results in a very nice contrast in dark environments. Additionally, its pixels consume energy only when they are on, so the OLED display consumes less power when compared with other displays.

The model we’re using here has only four pins and communicates with the Arduino using I2C communication protocol. There are models that come with an extra RESET pin. There are also other OLED displays that communicate using SPI communication.

Because the OLED display uses I2C communication protocol, wiring is very simple. You just need to connect to the Arduino Uno I2C pins as shown in the table below.

To control the OLED display you need the adafruit_SSD1306.h and the adafruit_GFX.h libraries. Follow the next instructions to install those libraries.

After wiring the OLED display to the Arduino and installing all required libraries, you can use one example from the library to see if everything is working properly.

This is an example for our Monochrome OLEDs based on SSD1306 drivers. Pick one up today in the adafruit shop! ------> http://www.adafruit.com/category/63_98

Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!

Written by Limor Fried/Ladyada for Adafruit Industries, with contributions from the open source community. BSD license, check license.txt for more information All text above, and the splash screen below must be included in any redistribution.

The Adafruit library for the OLED display comes with several functions to write text. In this section, you’ll learn how to write and scroll text using the library functions.

First, you need to import the necessary libraries. The Wire library to use I2C and the Adafruit libraries to write to the display: Adafruit_GFX and Adafruit_SSD1306.

Then, you define your OLED width and height. In this example, we’re using a 128×64 OLED display. If you’re using other sizes, you can change that in the SCREEN_WIDTH, and SCREEN_HEIGHT variables.

The (-1) parameter means that your OLED display doesn’t have a RESET pin. If your OLED display does have a RESET pin, it should be connected to a GPIO. In that case, you should pass the GPIO number as a parameter.

The sizes are set by the actual font. So, the setTextSize() method doesn’t work with these fonts. The fonts are available in 9, 12, 18 and 24 point sizes and also contain 7-bit characters (ASCII codes) (described as 7b in the font name).

After specifying the font, all methods to write text will use that font. To get back to use the original font, you just need to call the setFont() method with no arguments:

To draw a pixel in the OLED display, you can use the drawPixel(x, y, color) method that accepts as arguments the x and y coordinates where the pixel appears, and color. For example:

Use the drawLine(x1, y1, x2, y2, color) method to create a line. The (x1, y1) coordinates indicate the start of the line, and the (x2, y2) coordinates indicates where the line ends. For example:

The drawRect(x, y, width, height, color) provides an easy way to draw a rectangle. The (x, y) coordinates indicate the top left corner of the rectangle. Then, you need to specify the width, height and color:

The library also provides methods to displays rectangles with round corners: drawRoundRect() and fillRoundRect(). These methods accepts the same arguments as previous methods plus the radius of the corner. For example:

To draw a circle use the drawCircle(x, y, radius, color) method. The (x,y) coordinates indicate the center of the circle. You should also pass the radius as an argument. For example:

Use the the drawTriangle(x1, y1, x2, y2, x3, y3, color) method to build a triangle. This method accepts as arguments the coordinates of each corner and the color.

The library provides an additional method that you can use with shapes or text: the invertDisplay() method. Pass true as argument to invert the colors of the screen or false to get back to the original colors.

Then, click OK. Finally, in the main menu, go to File > Convert. A new file with .c extension should be saved. That file contains the C array for the image. Open that file with a text editor, and copy the array.

Copy your array to the sketch. Then, to display the array, use the drawBitmap() method that accepts the following arguments (x, y, image array, image width, image height, rotation). The (x, y) coordinates define where the image starts to be displayed.

In this section we’ll build a project that displays temperature and humidity readings on the OLED display. We’ll get temperature and humidity using the DHT11 temperature and humidity sensor. If you’re not familiar with the DHT11 sensor, read the following article:

Note:if you’re using a module with a DHT sensor, it normally comes with only three pins. The pins should be labeled so that you know how to wire them. Additionally, many of these modules already come with an internal pull up resistor, so you don’t need to add one to the circuit.

3. After installing the DHT library from Adafruit, type “Adafruit Unified Sensor” in the search box. Scroll all the way down to find the library and install it.

The code starts by including the necessary libraries. The Wire, Adafruit_GFX and Adafruit_SSD1306 are used to interface with the OLED display. The Adafruit_Sensor and the DHT libraries are used to interface with the DHT22 or DHT11 sensors.

The (-1) parameter means that your OLED display doesn’t have a RESET pin. If your OLED display does have a RESET pin, it should be connected to a GPIO. In that case, you should pass the GPIO number as a parameter.

Then, define the DHT sensor type you’re using. If you’re using a DHT11 you don’t need to change anything on the code. If you’re using another sensor, just uncomment the sensor you’re using and comment the others.

In this case, the address of the OLED display we’re using is 0x3C. If this address doesn’t work, you can run an I2C scanner sketch to find your OLED address. You can find the I2C scanner sketch here.

We use the setTextSize() method to define the font size, the setCursor() sets where the text should start being displayed and the print() method is used to write something on the display.

After wiring the circuit and uploading the code, the OLED display shows the temperature and humidity readings. The sensor readings are updated every five seconds.

If your DHT sensor fails to get the readings or you get the message “Failed to read from DHT sensor”, read our DHT Troubleshooting Guide to help you solve that problem.

The I2C address for the OLED display we are using is 0x3C. However, yours may be different. So, make sure you check your display I2C address using an I2C scanner sketch.

The OLED display provides an easy and inexpensive way to display text or graphics using an Arduino. We hope you’ve found this guide and the project example useful.

OLED is the display technology that has everyone talking. Considering the inky shadows, vivid highlights, and lifelike colors that these panels can produce, it’s no wonder. For 2022, we’re offering this coveted display tech across a wide range of our ProArt Studiobook, Zenbook, and Vivobook families of laptops. From our affordable everyday laptops to our premium, luxury machines, you’ll find an OLED-equipped laptop that fits your needs and budget. So what sets these displays apart from the competition? Here, we’ll break down the LCD vs. OLED debate so that you can pick the best laptop for your needs.

If you bought a high-end smartphone in recent years, you likely already have an example of this premium panel tech ready to hand. Ever wonder why photos and videos seem to look better on your phone than your old laptop? That could be because OLED displays excel at producing lifelike images with vibrant colors and striking contrast.

Both LCD and OLED displays create the image on your screen using millions of individual pixels. However, on standard LCDs, those pixels are illuminated by an always-on backlight, usually an array of large LEDs, that light up the entire screen at once. It’s an efficient arrangement, but it hinders a display’s ability to produce inky shadows, since the black pixels still have some light behind them. On an OLED display, however, there is no backlight—instead, each pixel acts as its own light source, and can be turned on or off independently of the others. This means that black portions of an image can be truly black, because there’s no light source shining through behind them.

OLED panels also excel at displaying vibrant, lifelike colors. Typically, they offer wide color gamut coverage comparable with the color production of expensive studio-grade monitors. Between the intense colors, inky shadows, and striking highlights, OLED panels deliver an image that leaps off the screen. For media of all kinds, you’ll see the difference right away.

For folks who often use their laptops in well-lit rooms full of natural light, a display with a high peak brightness is crucial. Our Vivobook Pro 16X OLED, for example, offers a 550-nit peak brightness so that you can comfortably use the laptop wherever, whenever.

But a display’s low-light performance matters, too. You probably turn down the brightness when you’re in a dimly lit bedroom to conserve battery life—and so it doesn’t sear your eyes when you open a website with a white background. Unfortunately for LCD displays, their contrast and color production often suffer at low brightness levels, leading to a washed-out image where it’s hard to distinguish one color from another. An LCD might only cover 11% of the DCI-P3 color gamut at its lowest brightness setting. To make matters worse, many LCDs introduce distracting, annoying flicker at low brightness levels due to their use of pulse-width modulation (PWM) techniques.

OLED panels, on the other hand, shine in this scenario. Much more than LCDs, they can deliver the vibrant colors and striking contrast that makes your content immersive and text easy to read. ASUS OLED panels maintain 100% DCI-P3 color gamut coverage at both high and low brightness levels, giving you accurate, lifelike colors across the board. Our OLED panels are certified for flicker-free performance by TÜV Rheinland, too. For comfortable use in a wide range of scenarios, OLED panels are the way to go.

When many of us think about using our laptop, we imagine ourselves sitting directly in front of the screen. While this is how folks commonly use a laptop, it’s not the entire story. You’ve probably watched a movie on your laptop with a loved one, collaborated with a classmate on a project, or followed an online recipe as you cooked dinner. Look at an LCD display from a sharp angle, as you likely had to do in any of these instances, and you’ll often see an ugly, color-shifted image.

This is another circumstance where OLED panels stand out from the other options. While some types of LEDs, notably IPS panels, offer wide viewing angles, OLED displays tend to offer wider viewing angles than even the best LEDs. With an OLED-equipped laptop, you’ll always have a clear view of the screen, even in those regular moments when you’re not looking at it straight-on.

An LCD display has a single, always-on backlight that emits broad-spectrum white light similar to what you see during the daytime. That’s fine during typical working hours, but prolonged exposure to blue wavelengths in the evening hours can disrupt your circadian rhythm and make it harder for you to fall asleep.* That’s why we offer a range of Eye Care monitors that give you tools for reducing your exposure to blue light.

Another option is an OLED display. Since each pixel in an OLED panel is its own light source, these displays automatically emit less blue light than LCD options under almost all conditions—about 70% less, compared with standard LCD displays.** You’ll be much more able to browse your TikTok feed or catch a show before bedtime without throwing off your sleep schedule. And your eyes will get fatigued more slowly when you use your PC, making you better able to finish a creative project while you’re still feeling the inspiration.

Netflix, Amazon Prime Video, and Disney Plus all let you stream movies and shows in High Dynamic Range, or HDR. An increasing number of games let you play in HDR, too. No matter what kind of content you enjoy, odds are you’ll want your next laptop to enjoy the inky shadows, dazzling highlights, and wide color gamut coverage of the next generation of media.

There are LCD displays that deliver a credible HDR experience, but OLED displays are a more natural fit for the content. The infinite contrast of an OLED display lets you have a brightly shining pixel right next to a perfectly black one, perfect for displaying high-contrast scenes. Bright stars in the infinite blackness of space, fireworks bursting across a night sky, and the sun setting behind a natural landscape never looked so good as they do on an OLED display. Look for laptops with Dolby Vision support and a VESA DisplayHDR 400 True Black or DisplayHDR 500 True Black certification to ensure the best experience.

That said, you certainly can get an LCD display that’s primed and ready for HDR. Our ROG Zephyrus Duo 16 includes a display option with a full-array local-dimming (FALD) backlight comprising 512 Mini LEDs that approximate the contrast ratio that an OLED panel can achieve. On top of that, it offers an 1100-nit peak brightness and a VESA DisplayHDR 1000 certification. That increased high-end luminance means that you can see more detail in bright images than you would on an HDR display with lower peak brightness.

When you’re watching an action movie, cheering on your favorite athletes during March Madness, playing a round of Fortnite with your friends, or simply tracking the movement of your mouse cursor across the screen as you get some work done, the clarity of moving objects on your display matters. The key spec here is response time. Each pixel on any display takes a small but noticeable amount of time to transition from one color to the next. On a display with poor response time, this appears as a distracting blur that resolves and goes away when the image stops moving. Our OLED panels offer an exceptional 0.2ms response time that gives you absolute clarity in moving images. Comparable LCD displays can take up to 10ms to switch colors.

It’s not just the sharpness of any given image that’s improved by low response time. The accuracy of any given pixel is affected, as well. A typical 60Hz panel refreshes the content on the screen every 16.67 milliseconds. If a pixel takes 10ms to transition to the correct color, then it only actually spends 6.67ms displaying the correct color. A pixel that only needs 0.2ms to transition to the correct color displays that color for almost the entirety of the refresh cycle. Whether you’re watching an action-packed movie, cheering on your favorite sports team, or digging into a great nature documentary, you’ll see a clear image throughout instead of blurry motion.

However, not all LCD displays are built the same. Purchase a gaming laptop equipped with one of our ROG Nebula Displays, and you’ll enjoy a speedy 3ms response time. What’s more, LCD panels are capable of reaching refresh rates that OLED can’t currently match. Our ROG Strix SCAR laptops, for example, can be equipped with a lightning-quick 360Hz display. If you’re shopping for a laptop primarily for fast-paced competitive gaming, a high-refresh-rate LCD display is likely a better fit for you. Click here to read about our different families of gaming laptops.

As you read articles about OLED displays and watch reviews on YouTube, you might notice people talking about “burn-in.” More accurately known as image retention, this is a type of image distortion that can occur when users display static images or on-screen elements at peak brightness levels uninterrupted for many hours, if not days, at a time. Most folks simply don’t use their monitors in this way, so in real-world usage, you can purchase a laptop with an OLED display with the confidence that you’re unlikely to encounter image retention issues. For additional peace of mind, check out the results of a long-term uniformity test conducted by a trusted independent media outlet.

To provide an additional layer of protection against image retention, we include a suite of ASUS OLED Care settings in the easy-to-use MyASUS app. Pixel refresh launches a special screen saver when your display has been idle for 30 minutes that refreshes your screen pixels and optimizes picture quality. Pixel shift moves display pixels almost invisibly to help make sure that static images aren’t constantly displayed on your desktop. And we make it easy to adjust your Windows taskbar settings so that this static display element doesn’t cause any long-term image retention issues.

Some best practices can give you even more assurance that your OLED display will deliver a pristine image over the expected lifetime of the device—and they’re things that you’d likely already do with your laptop anyway. It’s prudent to have the display turn off due to inactivity after a certain amount of time. Rather than leave the brightness level at maximum constantly, it’s a good idea to dial back the display brightness to best fit the surrounding ambient light. Both of these prudent measures help extend battery life, as well, so you likely do these things with your laptops anyway. Finally, our OLED-equipped laptops ship with Dark Mode enabled in Windows by default so that static UI elements aren’t unnecessarily bright.

For most users, an OLED panel is a better fit than an LCD panel. The infinite contrast these displays provide make them more comfortable to use in a wide range of applications. Whether you’re connecting with friends on social media, skimming through your email, watching the latest show, or just browsing your favorite sites, an OLED panel will elevate your experience. Ultra-wide viewing angles let you share any of these things with family, friends, coworkers, and clients. And the list goes on—this display option sets you up for immersive HDR media, takes care of your eyes with its reduced blue light emission, and gives you exceptional clarity in moving images.

There are folks out there for whom LCD panels are a superior choice. Gamers, in particular, benefit from the sky-high refresh rates and ever-lowering response times afforded by LCDs. And those who want an HDR experience augmented by the absolute highest peak brightness levels may prefer an LCD equipped with an ultra-bright FALD backlight.

For just about everyone else, the advantages of OLED panels make them the clear winner of the LCD vs. OLED debate. For too long, display aficionados had to hunt for devices equipped with this class-leading tech. Now, we’re offering OLED panels across a wide range of laptops.

Looking for a highly portable laptop with a detachable keyboard? Check out the eminently affordable Vivobook 13 Slate OLED. Need a blend of performance, portability, and elegance? The Zenbook Flip 14 OLED gives you muscular performance with its AMD Ryzen 5000-series CPU. For creators, we have a wide range of laptops equipped with OLED panels. Click here to learn more. For every budget, need, and preference, we have an OLED laptop ready and waiting. Find your next laptop today.

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All screens flicker to some degree — be they TV screens, car navigation displays, monitors, tablets, and yes, even smartphone displays. In this article, we will talk a little about what flicker is, what can cause it (on smartphones in particular), and how we at DXOMARK test for it, quantify it, and measure its impact on the end-user experience.

Flicker is a quick oscillation of light output between on and off; it is measured in hertz (Hz) to quantify the frequency at which the oscillation occurs. While we may not be consciously aware of the flicker phenomenon, it’s important to understand that our eyes still physically respond to it — that is, our irises expand and contract in response to these changes in brightness. This involuntary physiological response can certainly explain why we may have a headache and particularly why our eyes can feel tired after looking at a display for an extended period of time — they have been working hard! (This is especially true when looking at a display in dark ambient conditions, such as reading in bed with the lights turned off, for reasons we’ll touch on a bit more below.)

Given the ubiquity of smartphones, it is unfortunate that the flicker on their displays (especially OLED displays) is still an issue for many people. But wait! Why do they flicker? Well, let’s remember that smartphone display hardware is based on either LCD (liquid crystal display) or OLED (organic light-emitting diode) technology. LCDs don’t emit their own light; rather, they are back-illuminated by a strip of LEDs whose light intensity is quite powerful so as to compensate for the brightness drop due to the low transmission rate of the LCD panel (caused mainly by the RGB color filter). By contrast, in an OLED display, every pixel is itself an OLED that produces its own light.

Since both LCDs and OLED smartphone displays are composed of light-emitting diodes, let’s describe how these diodes are driven. Because of a diode’s intrinsic physical properties, it cannot be dimmed by changing the intensity of the current (mA) without impacting the color of the light. So how do phone manufacturers dim displays? They make use of a technique called pulse-width modulation (PWM), which means that they turn the diodes off and on at varying rates. Because we normally should not be able to see this switching between off and on (in other words, the flicker!), our brains are fooled into perceiving the screen as simply dimmer overall (a phenomenon known as the “brain averaging effect”). How dim depends on how long the diodes are off versus how long they are on: the longer they’re off, the dimmer the screen will appear.

So both LCDs and OLED displays power their light sources differently, but both technologies are subject to flicker effect; however, it is usually more noticeable on OLED displays than on LCDs. For one thing, OLED displays and LCDs show PWM at different frequency ranges — the PWM of OLED displays range from ~50 to ~500 Hz, whereas the PWM of LCDs starts at around 1000 Hz or higher. Second, as the human eye may experience flicker sensitivity up to about 250 Hz (at least for most people), it should come as no surprise that OLED displays are more likely to cause eyestrain than LCDs.

A significant disadvantage to using PWM technology can be that when a display adjusts to its minimum brightness in very dim or completely dark ambient light conditions, the duty cycle is very short and the interval when the diode is off is proportionately much longer (for example, minimum brightness may translate to a 10% duty cycle, meaning that the diode is off for 90% of the period). At lower PWM frequencies, flicker can become much more noticeable, which helps explain why reading text or watching videos in bed at night is more likely to cause headaches and eyestrain than when viewing screens in brighter conditions.

The video below was shot with a Phantom VEO-E 340L camera at 1500 fps (as were the other videos further below), slowed down to 4 fps to show display pulse-width modulation (PWM) — the white areas separated by black lines that extend across the screen when brightness diminishes at regular intervals. You can see the difference between the Samsung Galaxy S20 Ultra 5G on the left, which has a medium duty cycle (around 60%), and the Huawei P40 Pro and the Oppo Find X2 Pro, which have long duty cycles (roughly 90%; the black lines show that the OLEDs are turned off, albeit briefly):

So how does DXOMARK measure flicker? One major way is with a device called, appropriately enough, a flickermeter (specifically, a TRD-200 from Westar Display Technologies), whose sole purpose is to measure quick oscillations in brightness. Our engineers follow a strict protocol for measuring flicker on each smartphone display: all devices are individually tested using their default settings under the exact same dark (< 0.1 lux) ambient lighting conditions, and are placed at the same distance from the flickermeter. We chart the output on this graph (which we use to compare up to four phones in our display reviews; note that you can click on the name of a phone in the legend on the bottom of the graph to remove or redraw its results):

Yes, it’s a cool-looking graph, but what does it mean? How should we read this? Well, first of all, keep in mind that these results correlate with each device’s PWM — the on/off power cycle that helps control screen brightness. The horizontal X axis show the frequency of the oscillations over time measured with the flickermeter in hertz (Hz). The vertical Y axis shows the SPD(dB)— spectral power density in decibels, which is the amount of power associated with one frequency of the signal that the display generates.

The first spike in our flicker graph appears at a phone’s listed refresh rate, but it is the highest spike — that is, the one that comes closest to or surpasses 0 dB — that is of interest to us in terms of flicker, as it indicates the PWM frequency; in this case, 241 Hz for the Samsung (S20), 362 Hz for the Huawei, 481 Hz for the OnePlus, and 240 Hz for the other Samsung (Note20). (Just in passing, you can nearly always ignore values below -40 (dB)