lcd panel technology comparison in stock
So, why would anyone ever buy a TN panel? For starters, they’re cheap. They don’t cost a lot to produce, so they’re often used in the most budget-friendly options. If you don’t value color reproduction or need excellent viewing angles, a TN panel might be fine for your office or study.
TN panels also have the lowest input lag—typically around one millisecond. They can also handle high refresh rates of up to 240 Hz. This makes them an attractive option for competitive multiplayer games—especially eSports, where every split-second counts.
IPS technology was developed to improve upon the limitations of TN panels—most notably, the poor color reproduction and limited viewing angles. As a result, IPS panels are much better than TNs in both of these areas.
In particular, IPS panels have vastly superior viewing angles than TNs. This means you can view IPS panels from extreme angles and still get accurate color reproduction. Unlike TNs, you’ll notice very little shift in color when you view one from a less-than-ideal perspective.
IPS panels are also known for their relatively good black reproduction, which helps eliminate the “washed out” look you get with TN panels. However, IPS panels fall short of the excellent contrast ratios you’ll find on VAs.
While high refresh rates were typically reserved for TNs, more manufacturers are producing IPS panels with refresh rates of 240 Hz. For example, the 27-inch 1080p ASUS VG279QM uses an IPS panel and supports 280 Hz.
Previously, TNs exhibited less input lag than any other panel, but IPS technology has finally caught up. In June 2019, LG announced its new Nano IPS UltraGear monitors with a response time of one millisecond.
Despite the gap being closed, you’ll still pay more for an IPS panel with such a low response time than you would for a TN with similar specs. If you’re on a budget, expect a response time of around four milliseconds for a good IPS monitor.
One last thing to be aware of with IPS panels is a phenomenon called “IPS glow.” It’s when you see the display’s backlight shining through it at more extreme viewing angles. It’s not a huge problem unless you view the panel from the side, but it’s something to keep in mind.
VA panels are something of a compromise between TN and IPS. They offer the best contrast ratios, which is why TV manufacturers use them extensively. While an IPS monitor typically has a contrast ratio of 1000:1, it’s not unusual to see 3000:1 or 6000:1 in a comparable VA panel.
In terms of viewing angles, VAs can’t quite match the performance of IPS panels. Screen brightness, in particular, can vary based on the angle from which you’re viewing, but you won’t get the “IPS glow.”
VAs have slower response times than TNs and the newer Nano IPS panels with their one-millisecond response rates. You can find VA monitors with high refresh rates (240 Hz), but the latency can result in more ghosting and motion blur. For this reason, competitive gamers should avoid VA.
Compared to TNs, VA panels do offer much better color reproduction and typically hit the full sRGB spectrum, even on lower-end models. If you’re willing to spend a bit more, Samsung’s Quantum Dot SVA panels can hit 125 percent sRGB coverage.
For these reasons, VA panels are seen as the jack of all trades. They’re ideal for general use, but they either match or fall short in most other areas except contrast ratio. VAs are good for gamers who enjoy single-player or casual experiences.
When compared to CRT monitors, all LCD panels suffer from some form of latency issue. This was a real problem when TN panels first appeared, and it’s plagued IPS and VA monitors for years. But technology has moved on, and while many of these issues have been improved, they haven’t been eliminated entirely.
Uneven backlighting is another issue you’ll find on all panel types. Often this comes down to overall build quality—cheaper models slack on quality control to save on production costs. So, if you’re looking for a cheap monitor, be prepared for some uneven backlighting. However, you’ll mostly only notice it on solid or very dark backgrounds.
LCD panels are also susceptible to dead or stuck pixels. Different manufacturers and jurisdictions have different policies and consumer laws covering dead pixels. If you’re a perfectionist, check the manufacturer’s dead-pixel policy before you buy. Some will replace a monitor with a single dead pixel for free, while others require a minimum number.
Office or study use: Your budget should be your primary concern here. VA is the do-it-all panel, with superior viewing angles to TN, but either would do the trick. You can save some money because you don’t need high refresh rates or ultra-low latency. They’re still nice, though. You’ll see a noticeable difference in smoothness just when moving the Windows cursor on a monitor with a 144 versus 60 Hz refresh rate.
Photo and video editors/Digital artists: IPS panels are still generally favored for their ability to display a wide gamut of colors. It’s not unusual to find VA panels that also cover a wide gamut (125 percent sRGB, and over 90 percent DCI-P3), but they tend to exhibit more motion blur during fast-paced action than IPS panels. If you’re serious about color accuracy, you’ll need to properly calibrate your monitor.
Programmers who mount monitors vertically: You might think TN panels are great for programmers, but that’s not necessarily the case. TN panels have particularly bad viewing angles on the vertical axis. If you mount your monitor in portrait mode (as many programmers and mobile developers do), you’ll get the worst possible viewing angles from a TN panel. For the best possible viewing angles in this scenario, invest in an IPS display.
Competitive online gamers: There’s no question TN panels are still favored in the eSports world. Even the cheapest models have fast response times and support for high refresh rates. For 1080p gaming, a 24-inch will do just fine, or you could opt for a 1440p, 27-inch model without breaking the bank. You might want to go for an IPS panel as more low-latency models hit the market, but expect to pay more.
Non-competitive, high-end PC gamers: For a rich, immersive image that pops, a VA panel will provide a higher contrast ratio than IPS or TN. For deep blacks and a sharp, contrasting image, VA is the winner. If you’re okay with sacrificing some contrast, you can go the IPS route. However, we’d recommend avoiding TN altogether unless you play competitively.
Best all-rounder: VA is the winner here, but IPS is better in all areas except contrast ratio. If you can sacrifice contrast, an IPS panel will provide fairly low latency, decent blacks, and satisfactory color coverage.
Again, IPS is the clear winner here. The vertical viewing angles are very similar to the horizontal ones on both IPS and VA panels. Unfortunately, this is one area where TN panels are usually much, much worse. TN monitors degrade rapidly from below, and colors actually inverse - resulting in a negative image that can be distracting. For this reason, if you decide to buy a TN monitor, look for one with an excellent height adjustment, or consider buying a VESA mounting arm, as you should mount TN monitors at eye level. Even when mounted properly, larger TN displays can appear non-uniform at the edges.
There"s usually not much difference between VA and IPS panels in terms of gray uniformity. It"s rare for monitors to have uniformity issues, and even on monitors that perform worse than average, it"s usually not noticeable with regular content. TN monitors tend to perform a bit worse than usual, though, and the top half of the screen is almost always darker than the rest, but that"s an artifact of the bad vertical viewing angles.
Black uniformity tends to vary significantly, even between individual units of the same model, and there"s no single panel type that performs the best. It"s rare for monitors to have good black uniformity, and almost every monitor we"ve tested has some noticeable cloudiness or backlight bleed. IPS and TN panels can look slightly worse due to their low contrast ratios, as the screen can take on more of a bluish tint when displaying dark scenes. Like with contrast, black uniformity issues usually aren"t very noticeable unless you"re looking at dark content and you"re in a dark room. If you only use your monitor in a bright environment, generally speaking, you don"t need to worry about black uniformity.
Historically, TN panels used to have the worst colors, as many of them were cheaper models that only supported 6-bit colors or used techniques like dithering (FRC) to approximate 8-bit colors. Most displays today, including TN models, are at least 8 bit, and many of them are even able to approximate 10-bit colors through dithering. New technologies, like LG"s Nano IPS and Samsung"s Quantum Dot, add an extra layer to the LCD stack and have significantly improved the color gamut of modern IPS and VA displays, leaving TN a bit behind. Between them, NANO IPS is slightly better, as it tends to offer better coverage of the Adobe RGB color space. Although the difference is minor, IPS panels still have a slight edge over VA and TN displays.
Although TN panels have caught up a bit in the SDR color space, they"re far behind when it comes to HDR, so if you"re looking for a good HDR color gamut, avoid TN panels. Between VA and IPS panels, the difference isn"t as significant; however, IPS panels still have a slight edge. The best VA panels top out at around 90% coverage of the DCI P3 color space used by most current HDR content. IPS panels go as high as 98% coverage of DCI P3, rivaling even some of the best TVs on the market. Due to the very high coverage of DCI P3 on both VA and IPS, the difference isn"t that noticeable, though, as most content won"t use the entire color space anyway.
Although not necessarily as noticeable to everyone as the differences in picture quality, there can also be a difference in motion handling between IPS, VA, and TN displays. TN panels historically offered the best gaming performance, as they had the highest refresh rates and extremely fast response times. Manufacturers have found ways to drastically improve the motion handling of VA and IPS panels, though, and the difference isn"t as pronounced.
LCD panel technology has changed drastically over the last few years, and the historical expectations for response time performance don"t necessarily hold anymore. For years, TN monitors had the fastest response times by far, but that"s started to change. New high refresh-rate IPS monitors can be just as fast.
VA panels are a bit of a strange situation. They typically have slightly slower response times overall compared to similar TN or IPS models. It"s especially noticeable in near-black scenes, where they tend to be significantly slower, resulting in dark trails behind fast-moving objects in dark scenes, commonly known as black smear. Some recent VA panels, such as the Samsung Odyssey G7 LC32G75T, get around it by overdriving the pixels. It results in much better dark scene performance but a more noticeable overshoot in brighter areas.
Within each of the three types of LCD we mentioned, other related panel types use the same basic idea but with slight differences. For example, two popular variants of IPS panels include ADS (technically known as ADSDS, or Advanced Super Dimension Switch) and PLS (Plane to Line Switching). It can be hard to tell these panels apart simply based on the subpixel structure, so we"ll usually group them all as IPS, and in the text, we"ll usually refer to them as IPS-like or IPS family. There are slight differences in colors, viewing angles, and contrast, but generally speaking, they"re all very similar.
There"s another display technology that"s growing in popularity: OLED. OLED, or organic light-emitting diode, is very different from the conventional LCD technology we"ve explored above. OLED panels are electro-emissive, which means each pixel emits its own light when it receives an electric signal, eliminating the need for a backlight. Since OLED panels can turn off individual pixels, they have deep, inky blacks with no blooming around bright objects. They also have excellent wide viewing angles, a near-instantaneous response time, and excellent gray uniformity.
OLED panels aren"t perfect, though. There"s a risk of permanent burn-in, especially when there are lots of static elements on screen, like the UI elements of a PC. There aren"t many OLED monitors available, either, but they"ve started to gain popularity as laptop screens and for high-end monitors, but they"re very expensive and hard to find. They"re also not very bright in some cases, especially when large bright areas are visible on screen. The technology is still maturing, and advances in OLED technology, like Samsung"s highly-anticipated QD-OLED technology, are promising.
As you can probably tell by now, no one panel type works best for everyone; it all depends on your exact usage. Although there used to be some significant differences between panel types, as technology has improved, these differences aren"t as noticeable. The two exceptions to this are viewing angles and contrast. If you"re in a dark room, a VA panel that can display deep blacks is probably the best choice. If you"re not in a dark room, you should focus on the other features of the monitor and choose based on the features that appeal to your exact usage. IPS panels are generally preferred for office use, and TN typically offers the best gaming experience, but recent advancements in VA and IPS technology are starting to change those generalizations. For the most part, the differences between each panel type are so minor now that it doesn"t need to be directly factored into your buying decision.
Many TVs use LCD (Liquid Crystal Display) panels that are lit by LED backlights. There are two popular types of LCD panels: In-Plane Switching (IPS) and Vertical Alignment (VA), and there are two main differences between each type. A VA panel usually has a high contrast ratio and narrow viewing angles. However, an IPS panel has low contrast and wide viewing angles. These are the main differences between each, and for the most part, panel type doesn"t affect other aspects of picture quality, like peak brightness, color gamut, or color accuracy.
For the purposes of this article, we"re going to compare two LED-backlit LCD TVs: the Sony X800H, which has an IPS panel, and the Hisense H9G, which has a VA panel. Due to their different panel types, there are three noticeable differences in picture quality: viewing angles, contrast, and black uniformity, so we"re going to look at each one.
Viewing angle refers to the angle at which you can watch the TV without seeing a noticeable drop in picture quality. IPS TVs are the clear winner here, as the image remains accurate when viewing from the side - you can see the differences in the videos above. This is their main advantage over VA panels. Most VA panel TVs have a noticeable loss in image accuracy when viewing from the side. The narrow viewing angle of VA-type TVs is also problematic when the TV is used as a PC monitor from up close since the edges of the display look washed out.
VA panels are far superior to IPS panels when it comes to this, so if you tend to watch movies in the dark, you likely want to get a TV with a VA panel. Most TVs use VA panels due to this main advantage, and high-end models may have a local dimming feature that further enhances black levels. On the other hand, IPS panels normally have low contrast, so blacks look closer to gray, but you may not notice the difference in contrast in bright environments.
Our black uniformity tests determine how well a TV displays a dark scene with a bright image in the center. Ideally, you want to see a completely black screen with the center cross being the only part that"s lit up, and this is important for people watching movies. No LED TV has perfect uniformity, and unlike viewing angles and contrast, the panel type doesn"t completely determine its black uniformity. However, most VA panels that we"ve tested have good black uniformity, while most IPS panels have sub-par black uniformity. This doesn"t mean that every VA panel TV has good uniformity, as this can change between units, and you can also improve uniformity using the local dimming feature.
LCDs function by having liquid crystals in little groups to form the pixels. These crystals react and change position when charged with electricity and, depending on their position, they allow a certain color of light to pass through.
There"s also another type of IPS panel, called Plane-to-Line Switching (PLS), which can be seen with the Sony X800H. This panel type was designed by Samsung and technically performs the same as an IPS panel. When you compare the pixels visually, IPS panels look like chevrons, VA looks like very straight rectangles, and PLS looks like round-edged capsules. You can learn more about pixels here.
The way the pixels are laid out can also affect text clarity. Many IPS panels, like the ones on the Sony X800H or the LG SK9000, use RGB sub-pixel layouts, while many VA panels have a BGR layout, like on the Hisense H9G. The sub-pixel layout doesn"t directly affect picture quality unless you"re using it as a PC monitor. Some applications may expect an RGB layout, so if you have a BGR sub-pixel layout, text may not look clear. You may need to increase the text scaling to read it properly, but this issue isn"t common with an RGB layout. You can learn more about it here.
Unlike LED TVs, OLEDs don"t use a backlight and instead have self-emitting pixels. This allows the pixels to individually turn on and off, resulting in perfect blacks. This means that they also have perfect black uniformity as there"s no blooming around bright objects like on some LED TVs. They also have wide viewing angles, sometimes even wider than some IPS panels, so OLEDs are a good choice for wide seating arrangements.
Samsung released quantum dot TVs in 2015, which they later labeled as QLED in 2017. These TVs include a quantum dot layer between the LED backlights and the LCD panel to achieve a wider color gamut. Other companies like Vizio and TCL also use this quantum dot technology on their TVs. Adding this extra quantum dot layer doesn"t change the characteristics of the panel type; the VA panel on the TCL 6 Series/S635 2020 QLED still has a high contrast ratio and narrow viewing angles. Although most QLED TVs use VA panels, you can easily use an IPS panel as well.
Manufacturers have tried different techniques to improve the viewing angles on VA panels over the years, aiming to produce a perfect LCD panel with both wide viewing angles and high contrast. While they have yet to achieve that goal, a few TVs have hit the market that try to combine the best of both panel types. The first TVs with this viewing angle technology came out in 2018, and only a few high-end models like the Samsung Q90/Q90T QLED and the Sony X950H had this technology in 2020. These TVs are a bit unique, delivering noticeably better viewing angles than their pure VA counterparts, but still worse than true IPS panels. This comes at the expense of a lower contrast ratio, as these TVs have worse native contrast than most VA panels, but they"re still better than IPS panels. Combined with their local dimming features, they still produce deep blacks.
Between IPS and VA panels, neither technology is inherently superior to the other as they both serve different purposes. In general, IPS TVs have wide viewing angles suitable for when you want to watch the big game or your favorite show in a large seating arrangement. They"re also beneficial for use as a PC monitor since the edges remain accurate if you sit up close. However, VA panels are a better choice for watching content in dark rooms, as their improved contrast allows them to display deep blacks. Choosing between the two is a series of trade-offs and qualities, so choosing the best TV for your needs depends on your usage.
Today"s market for monitors is, at a glance, simple. Everyone has settled on LCD displays as the technology of choice, and most displays have roughly the same appearance.
As Tina recently explained, however, things become more complex once you start looking at the details. In fact, even after you"ve considered contrast, connections, display resolutions and other factors you still have one other choice to consider - the display panel technology you"d prefer.
Modern LCD monitors are extremely thin, as if they are made out of a single piece of material. They are, however, made up of multiple components including the display panel. The display panel is a flat sheet of material that contains liquid crystals that react in different ways when electricity is applied.
Your display panel does not work alone. A backlight shines through the panel in order to create a viewable image. Think of it like a kaleidoscope - if you view it in a brightly lit room you"ll see beautiful patterns and colors, but if you try to use it in a dark room you"ll see nothing at all. Today we"re just talking about the kaleidoscope itself and not the light shining through it.
There is a very good chance that you are reading this article on a LCD monitor equipped with a TN display panel. That"s because TN display panels are by far the most popular in the world. They"re found in virtually all laptops and a large majority of desktop monitors.
The term TN stands for Twisted Nematic, the technical name for the liquid crystal technology the panel uses. The crystals in a TN panel like to do the twist when electrical current is applied. The image on a TN panel is controlled by turning up the juice and letting the crystals twist away - or stepping off the juice and letting them calm down.
While popular, TN display panels aren"t the best. They can"t display as wide a range of color as some other technologies and the formation of the crystals causes issues when you attempt to view the display from an off angle - an effect you"d probably noticed on your own monitor before.
TN display panels have low response times, however, which means they can refresh the image displayed quickly. This is a trait that PC gamers often appreciate. Also, TN display panels are the least expensive currently available. You can find TN display panels everywhere - indeed, most brick-and-mortar stores stock nothing but monitors with TN display panels.
Efforts to produce a broader range of colors and better viewing angles resulted in the IPS display, which is the second most popular display panel today. There are two major technical differences that make IPS display panels superior. The crystals in the panel are aligned differently, and each crystal has electricity applied through both ends rather than just one.
These differences give IPS panels the ability to display images in gorgeous detail. IPS panels can reproduce full 8-bit colorand most companies producing IPS panel monitors proudly boast about their monitor"s ability to display a wide color gamut. This is incredibly important to those who digitally edit photos and art. Monitors with IPS display panels also provide wider viewing angles, which means you don"t have to be viewing your monitor dead-on to receive decent image quality.
IPS display panels do have slower response times than TN panels, and some larger monitors with IPS panels aren"t great for gaming due to this trait. The biggest downside, however, is price - these panels are always more expensive, and as a result even a 24" IPS display is usually over $400. Dell"s UltraSharp series is the most well known line of IPS panel monitors in North America. You can also find IPS display panels in the iMac, iPad and the iPhone 4.
If you"re shopping for a monitor you will almost certainly end up choosing between a TN or IPS panel. However, there are a few other panel technologies available. These include MVA and PVA, two related technologies.
You won"t find these technologies frequently, and they"re usually in extremely expensive monitors that are designed for professionals and digital artists. MVA and PVA monitors offer full 8-bit color as well (indeed, a few models claim 10-bit or 16-bit color) and these technologies are generally known to provide the widest viewing angles and deepest black levels of any display technology (although the specifics depend on the individual monitor). The downsides are similar to IPS panels - response times are often a bit high and the prices are very high.
I generally recommend monitors with IPS display panels if you can afford them. Monitors tend to last a long time, so laying down extra cash for a better monitor makes sense. If you have any tips or questions relating to display panel technology feel free to leave them in the comments!
Picking a monitor may feel more like art than science, but the technology behind the screen isn"t hard to understand. Learning about those technologies is key to navigating the minefield of marketing buzzwords separating you from your next monitor.
Our guide to the best monitors for PC gaming explains why those monitors are ideal for playing games at high resolutions and high framerates, but it doesn’t dig deep into the details of monitor technology. That’s what this guide is for: it breaks down what you need to know about modern displays: resolutions, aspect ratios, refresh rates, and the differences between panel types like IPS, VA, and TN.
LCD displays have a native resolution, and running games (or the desktop) below that resolution degrades image quality due to the scaling process of enlarging the image. Using lower resolution modes isn"t really a substitute for picking the right number of pixels in the first place.
1440p has become our recommendation as the best overall option. It"s great for office work, professional work, and gaming. You can still get higher refresh rate 144Hz panels (see below), plus G-Sync or FreeSync, and you can run at 100 percent scaling in Windows. For gaming purposes, however, you"ll want at least a GTX 1070/RTX 2060 or RX Vega 56 (or equivalent) graphics card.
The most common and least expensive LCD panels are based on TN, or Twisted Nematic designs. Since TN screens are made on a vast scale and have been around a long time, they are very affordable. Online retailers stock an abundance of attractive 27-inch 1080p monitors(opens in new tab) with reasonable features starting at just $150. The price is nice, but the pixel density isn’t—and neither are the color quality or viewing angles, TN’s greatest weaknesses.
All TFT LCDs work by passing light, such as an LED, through a pair of polarized screens, a color filter, and liquid crystals that twist when current is applied to them. The more current applied, the more the liquid crystals twist and block light. Precise adjustments allow virtually any color or shade to be reproduced, but TN implementations have some limits.
Each pixel in an LCD display is made of red, green and blue subpixels. Colors are made by mixing varying brightness levels for these pixels, resulting in a perceived solid color to the user. The problem with TN is its widespread adoption of a 6-bit per channel model, instead of the 8-bit per channel used in better displays.
TN compensates for this shortcoming via FRC (Frame Rate Control), a pixel trick that uses alternating colors to produce a perceived third, but it"s a poor substitute for proper 24-bit color reproduction. When combined with the inversion and washout that comes from narrow viewing angles, TN"s elderly status in the LCD display world becomes clear.
IPS, short for In-Plane-Switching, was designed to overcome TN"s shortcomings as a display technology. IPS screens also use liquid crystals, polarized filters, and transmitters, but the arrangement is different, with the crystals aligned for better color visibility and less light distortion. Additionally, IPS panels typically use 8-bit depth per color instead of TN"s 6-bit, resulting in a full 256 shades to draw upon for each color.
The differences are pretty dramatic. While TN displays wash out at shallow angles and never truly "pop" with color no matter how well they are calibrated, IPS panels have rich, bright colors that don"t fade or shift when viewed from the sides. Moreover, pressing a finger on an IPS screen doesn"t cause trailing distortions, making them especially useful for touchscreen applications.
While touted as the high end display technology of choice by giants such as Apple, the truth is that IPS screens still have drawbacks. Due to their more complex construction and the additional transmitters and lighting required for each pixel, IPS screens cost more than their TN counterparts. Thankfully, over the past few years, the popularity of no-frills import IPS monitors from Asia has helped drive down prices and force bigger monitor brands to sell more reasonably priced IPS displays.
The complexity introduces additional overhead that reduces panel responsiveness. Most IPS displays clock in a few milliseconds slower than TN panels, with the best models managing 5ms grey-to-grey, and the more common 8ms panels can have noticeable blurring in gaming. Most IPS displays use a 60Hz refresh rate, though the best gaming displays now utilize IPS panels with 144Hz refresh rates, and a price to match.
A lot of research has been done with IPS and many variants exist, including Samsung"s popular PLS panels and AU Optronics AHVA (Advanced Hyper-Viewing Angle). The differences amount to subtle manufacturer variations or generational improvements on the technology, which has been around since 1996.
In between the high speed of TN and the color richness of IPS sits a compromise technology, the VA, or Vertically Aligned, panel. VA and its variants (PVA and MVA, but not AHVA) normally take the IPS approach with 8-bit color depth per channel and a crystal design that reproduces rich colors but retains some of the low latency and high refresh speed of TN. The result is a display that"s theoretically almost as colorful as IPS and almost as fast as TN.
VA panels have a few unique qualities, both positive and negative. They have superior contrast to both IPS and TN screens, often reaching a static 5000:1 ratio, and produce better black levels as a result. Advanced VA variants, such as the MVA panel used by Eizo in the Foris FG2421, support 120Hz officially and offer pixel latencies on par or better than IPS.
The flood of innovation in the display market shows no signs of abating, with TVs on one side and smartphones on the other driving new technologies such as curved screens and desktop-grade OLED panels that promise speeds, contrast and color beyond anything seen so far.
Most standard TFT-LCDs support a refresh rate of 60Hz, which means the screen is redrawn 60 times each second. While 60Hz may be sufficient for many desktop applications, higher refresh rates are desirable since they provide a smoother experience moving windows, watching video, and especially when gaming.
One method popular in gaming monitors is the inclusion of a strobed backlight, which disrupts eye tracking blur by cutting off the backlight for an instant, creating a CRT-like stable image. A strobed 120Hz display is more blur-free than a non-strobed 144Hz panel, but flickering the backlight understandably cuts down on the overall brightness of the image. Users with sensitive eyes can suffer from eyestrain and headaches induced from the flicker as well.
This nearly $4.9 billion company is a Taiwanese manufacturer of flat panel displays used in a wide variety of consumer electronics products such as high-def televisions, smartphones, notebook computers, and the touch-screen technology now being used in automobiles and payment-processing terminals.
Roughly 20% of large thin-film transistor LCD (TFT) panels in the world are produced by AU Optronics. Almost all Sonyundefined televisions in 2014 used AU Optronics flat panels, while Panasonic, LG(, Toshiba, Philips
There are plenty of new and confusing terms facing TV shoppers today, but when it comes down to the screen technology itself, there are only two: Nearly every TV sold today is either LCD or OLED.
The biggest between the two is in how they work. With OLED, each pixel provides its own illumination so there"s no separate backlight. With an LCD TV, all of the pixels are illuminated by an LED backlight. That difference leads to all kinds of picture quality effects, some of which favor LCD, but most of which benefit OLED.
LCDs are made by a number of companies across Asia. All current OLED TVs are built by LG Display, though companies like Sony and Vizio buy OLED panels from LG and then use their own electronics and aesthetic design.
So which one is better? Read on for their strengths and weaknesses. In general we"ll be comparing OLED to the best (read: most expensive) LCD has to offer, mainly because there"s no such thing as a cheap OLED TV (yet).
The better LCDs have local dimming, where parts of the screen can dim independently of others. This isn"t quite as good as per-pixel control because the black areas still aren"t absolutely black, but it"s better than nothing. The best LCDs have full-array local dimming, which provides even finer control over the contrast of what"s onscreen -- but even they can suffer from "blooming," where a bright area spoils the black of an adjacent dark area.
One of the main downsides of LCD TVs is a change in picture quality if you sit away from dead center (as in, off to the sides). How much this matters to you certainly depends on your seating arrangement, but also on how much you love your loved ones.
A few LCDs use in-plane switching (IPS) panels, which have better off-axis picture quality than other kinds of LCDs, but don"t look as good as other LCDs straight on (primarily due to a lower contrast ratio).
OLED doesn"t have the off-axis issue LCDs have; its image looks basically the same, even from extreme angles. So if you have a wide seating area, OLED is the better option.
Nearly all current TVs are HDR compatible, but that"s not the entire story. Just because a TV claims HDR compatibility doesn"t mean it can accurately display HDR content. All OLED TVs have the dynamic range to take advantage of HDR, but lower-priced LCDs, especially those without local-dimming backlights, do not. So if you want to see HDR content it all its dynamic, vibrant beauty, go for OLED or an LCD with local dimming.
In our tests comparing the best new OLED and LCD TVs with HDR games and movies, OLED usually looks better. Its superior contrast and lack of blooming win the day despite LCD"s brightness advantage. In other words LCD TVs can get brighter, especially in full-screen bright scenes and HDR highlights, but none of them can control that illumination as precisely as an OLED TV.
The energy consumption of LCD varies depending on the backlight setting. The lower the backlight, the lower the power consumption. A basic LED LCD with its backlight set low will draw less power than OLED.
LG has said their OLED TVs have a lifespan of 100,000 hours to half brightness, a figure that"s similar to LED LCDs. Generally speaking, all modern TVs are quite reliable.
Does that mean your new LCD or OLED will last for several decades like your parent"s last CRT (like the one pictured). Probably not, but then, why would you want it to? A 42-inch flat panel cost $14,000 in the late 90"s, and now a 65-inch TV with more than 16x the resolution and a million times better contrast ratio costs $1,400. Which is to say, by the time you"ll want/need to replace it, there will be something even better than what"s available now, for less money.
OLED TVs are available in sizes from 48 to 88 inches, but LCD TVs come in smaller and larger sizes than that -- with many more choices in between -- so LCD wins. At the high end of the size scale, however, the biggest "TVs" don"t use either technology.
You can get 4K resolution, 50-inch LCDs for around $400 -- or half that on sale. It"s going to be a long time before OLEDs are that price, but they have come down considerably.
LCD dominates the market because it"s cheap to manufacture and delivers good enough picture quality for just about everybody. But according to reviews at CNET and elsewhere, OLED wins for overall picture quality, largely due to the incredible contrast ratio. The price difference isn"t as severe as it used to be, and in the mid- to high-end of the market, there are lots of options.
First, to be clear, there is no “best” panel type out of these, as all have their respective advantages and disadvantages over the others. The information here pertains to general characteristics, as even panels of the same panel type will have some variance in characteristics (power consumption, backlight bleed, etc.) depending on the luck of the draw. Manufacturer tuning can also impact display output, affording some differentiating leverage to manufacturers sourcing from panel suppliers (which is effectively all of them).
Nostalgia or riddance aside, there are still some valid reasons to use a CRT monitor. When compared to LCD panels, CRT monitors can have higher contrast ratio, very low response time (which leads to non-blurred pictures even with fast movement on screen), and very little input lag, although LCD input lag can be largely negated. The downsides of CRTs are apparent, though: they’re large, heavy, consume more power, produce flicker, can produce audible, high frequency noise (although age plays into whether one can hear them or not), produce slightly distorted images, and produce harmful electromagnetic waves (in the form of x-rays), which requires that toxic materials such as lead and barium must be used as shielding to prevent detrimental health effects. CRT monitors are also notoriously hazardous to repair, given their large, active electrical coils that can measure upwards of 50,000 volts of electricity.
CRT displays are sometimes still used in medical, simulation, military, and government fields that have embedded the displays into control panels and machinery.
CRT monitors have largely gone out of production, and are rarely sold new (finding a used CRT is fairly easy), but their advantages temporarily lent themselves to some special uses. In regards to gaming, CRT monitors have historically been advantageous to use when gaming competitively due to very little motion blur and very little input lag. That being said, these advantages have faded with the progressive march of TN panels.
TN panels now have low motion blur (especially with lightboost or a similar technology), offer high refresh rates, low response times (1ms GTG in many cases), and are more than adequate even in the world’s most competitive games.
Ultimately, for the vast majority of users, the disadvantages of CRTs aren’t worth their limited gains, especially when TN panels meant for gaming more than adequately satisfy the needs of even competitive gamers.
TN panels have many benefits over the previously popular CRT monitors: lower weight, lower cost to produce, lower power consumption, they’re much thinner, offer clearer pictures, have no realistically achievable resolution limits, offer flexibility in size and shape, and the ability to eliminate flicker.
That being said, TN panels weren"t and still aren’t perfect, and compared to the previously popular CRT monitors, they’ve suffered from limited viewing angles, uneven backlighting, worse motion blur, higher input lag, dead/stuck pixels, and poor display in sunlight.
To be clear, many of these issues have been improved upon, but due to the underlying science of LCD TN panels, cannot be completely resolved. In fact, many of these issues -- like uneven backlighting, motion blur, input lag, and dead/stuck pixels -- are inherent issues across all LCD panel types. Poor viewing angles become a more pressing issue with larger displays, since the viewing angle when viewed straight on increases towards the outside of the monitor, thus causing more color distortion. TN panels do have the advantages of lower response times and higher refresh rates than other panel types/CRTs. TN panels are generally from 60Hz to 144Hz, offering substantially greater fluidity of gameplay with higher frequencies.
TN panels provide a good compromise between CRTs and other LCD panels as their traditionally low response rates, input lag, and high refresh rate make them comparable to CRTs for accuracy; TN panels also have the advantages of offering sharper pictures, widescreen output, lower weight, smaller physical dimensions, and higher resolutions compared to CRTs.
Still, compared to other LCD panels, TN panels suffer from poor viewing angles and worse color reproduction. Ultimately, for most gamers playing somewhat competitively to very competitively, TN panels are a good choice, but for those looking for a prettier and improved color experience, another panel type may be worth considering.
IPS (In-Plane Switching) was created to address the shortcomings of TN panels. IPS panels seek to solve TN panels’ issues of poor color reproduction and viewing angles. In this regard, IPS panels have largely succeed. Not only do they offer a higher contrast ratio (superior blacks), high color accuracy (which leads to IPS panels also generally looking less “washed out”), but IPS panels also have very little color shift when changing the viewing angles.
The tradeoff to this is that IPS panels have slower response times, higher production costs, higher power consumption, and lower possible refresh rates. IPS panels have traditionally been 60Hz, although, as with all monitors, they can be overclocked (results will vary). There have been improvements to IPS panels over the years, and slightly different revisions in the form of E-IPS and H-IPS, but ultimately the differences between these versions are inconsequential to gamers and those not involved in graphic design as a job.
Due to their worse response rates and lower possible refresh rates, IPS panels are generally considered to be worse for competitive gameplay and used more often when color is important, such as graphic design. For gamers who don’t play competitively and prefer breathtaking strolls in Skyrim instead of sweeping scrubs in CS:GO, an IPS panel should be a consideration for the next monitor.
PLS (Plane to Line Switching) are quite similar to IPS panels, so much so that they have the same advantages and disadvantages, with a couple extra minor advantages. PLS is produced by Samsung, who claims that compared to IPS panels, PLS panels have better viewing angles, a 10% increase in brightness, 15% decrease in production costs, increased image quality, and allow for flexible panels. Samsung’s PLS panels have been known to overclock well in monitors such as the QNIX 2710 in particular. Overall, PLS is basically Samsung’s version of IPS, as it is very similar in functionality (and even name). AHVA is also very similar to IPS and PLS, and differentiation between them is rare, although it should not be confused with the next panel type.
VA (Vertical Alignment) panels offer a solid medium between TN and IPS panels. VA was created to combine the advantages of IPS and TN panels, and largely did, although they did so with some compromise. That seems to be a theme in the world of monitors.
Compared to IPS panels, VA panels have the advantage of higher possible refresh rates. Although most are currently 60Hz, there are a few that are above 60Hz. VA has more advantages over TN panels than IPS, with better color reproduction, higher maximum brightness, and better viewing angles. VA panels do have the best contrast ratios of all panel types mentioned, but they also have the worst response times of the monitor technologies covered here. This causes blurring in fast-moving pictures and is disadvantageous to gaming.
For the use of gaming, VA is not the greatest option due to generally higher response time in comparison to other panel types; this slower response causes more motion blur, effectively eliminating its deployment for fast-moving titles. For a general work monitor, VA panels provide high contrast ratios, brightness, refresh rates, good color reproduction, and good viewing angles.
TN panels are another good choice for competitive gamers, as they support higher refresh rates, low response times, decent input lag, and high resolutions. Their bad viewing angles, color reproduction, and slight blurring compared to CRT monitors (due to higher response times) are all disadvantages, ones which cannot be easily fixed.
IPS panels solve the issues of TN panels, with better color reproduction and viewing angles, but do so at the cost of refresh rate and response time. IPS panels are especially useful for those not wanting to play too competitively, but want a beautiful/immersive visual experience. PLS and AHVA are similar enough to IPS to usually not be differentiated.
VA panels provide a good middle ground with better-than-IPS refresh rates and contrast levels, but have worse viewing angles and color production, although generally still better than TN. Response times are VA’s largest downfall, though, being slower than IPS and its variants and TN.
What’s best for you will depend on all of these items. For those wanting to play at a competitive level and who favor FPS or racing games, TN panels are best. Those wanting a more impressive and immersive experience may want an IPS (or similar variant, such as PLS), especially if working on artistic endeavors. Finally, those wanting a general monitor for work might consider a VA panel, although due to their higher response times, they won’t be good for gaming.
In this article we will explore the different types of display panel types available on the market. We will cover the most popular and some very niche or near obsolete options to give our fans a good overview.
LCD technology has some real and inherent disadvantages when compared to CRT, Plasma, and OLED, mostly because of the fact that LCDs rely on backlighting (either edge-lit like all computer monitors, or literally backlit on higher end TVs) while CRT, Plasma, OLED produce light on the surface for each and every pixel. This means that those other display types have superior contrast ratios, deeper blacks, more pure whites, far richer and fuller colors. For example, blacks are only true blacks on CRT/Plasma/OLED, not LCD, since the pixel actually has no light on these unlike LCD. LCDs also use sample and hold which leads to a lot more motion blur especially compared to CRT and SED/FED.
TN panels have two large advantages over other types. Cost and response time. It should be noted that even though inferior to IPS and VA for colour critical work, a good, high-end TN monitor with good calibration can still look quite decent for most use cases. It won’t beat decent VA or IPS, but it can still offer a nice visual experience. Good response times and low motion blur can make a TN look great in action.
This is the panel type used in many slightly older HDTVs. Overall it is a very nice and increasingly popular LCD panel type although the potential has yet to be fully realized in computer monitors.
- Inconsistent response times. Most VA displays have at least a few very slow transitions. Black to dark grey or just black to grey are the most common culprits, even if other transitions are good or even fast. As a result, VAs offer better minimum response times than IPS, but worse average and maximum response times than IPS. It should be noted that some higher end panels seem to have this issue mostly figured out though.
IPS is the most used panel type for photo editing, because of all LCD panels it has the best color accuracy. It is becoming more and more common and may eventually overtake TN panels.
- The best potential color accuracy of all LCD panels. Especially for professional panels, but even normal IPS monitors still have far better color accuracy than typical TN monitors though.
IPS is a very good LCD panel type and it has many advantages, but it is not the end all be all of monitors. Still, we believe that it and VA are overall tied in their pros and cons. But remember, the specific panel and product (and price!) always matter more than the technology it is based off!
CRT monitors have gone out of fashion and very few are still in any sort of production. Any CRT monitors one finds are likely to be used or old stock. We mostly expect only really hardcore competitive gamers to use such monitors thanks to their response time advantage, but the truth is that modern ultra-high end LCDs with blur reduction can offer a good alternative here.
This tech was prominent in HDTVs for a while, before LCD became the big thing. We are covering it in case you find an old plasma TV and are wondering if it would be a good fit. It has excellent contrast ration, good blacks and no backlight. Viewing angles are also very good and there is almost no motion blur.
Like CRT and plasma, the light source is on the screen surface itself, hence the much better image. An OLED powers each and every subpixel. OLED may have the potential to be the best panel type for everything, but there are still some longevity concerns on many models and its higher cost is still an issue.
- They use sample and hold just like LCD technology, so motion blur still exists. However, there is already a blur reduction technique for it, used by Oculus Rift (black frame insertion).
- While colour accuracy is good, it is hard to make it excellent. Lots of calibration is needed on the manufacturer’s side and probably on the user’s side too. It will easily surpass all other panels, except a perfectly calibrated CRT.
OLED and its derivative technologies are extremely promising. The true testament to how this piece of technology has taken the TV world by storm. We hope that it continues to advance and becomes cheaper so that every gamer, no matter their style of play can enjoy it!
The articles content, opinions, beliefs and viewpoints expressed in SAPPHIRE NATION are the authors’ own and do not necessarily represent official policy or position of SAPPHIRE Technology.
The general consumer typically has very limited knowledge about the different types of LCD panels on the market and they take all of the information, specifications, and features printed on the packaging to heart. The reality is that advertisers tend to take advantage of the fact that most people conduct very minimal research before making big technological purchases—in fact, they depend on this to sell higher quantities of commercial monitors. With that in mind, how exactly do you know if you’re actually getting a good quality product that’ll suit your needs? Reading up on all of the different types of industrial LCD monitors is a good place to start!
LCD stands for liquid-crystal display. Over the years, LCD technology has become ubiquitous with various commercial and industrial screen manufacturing. LCDs are constructed of flat panels that contain liquid crystals with light modulating properties. This means that these liquid crystals use a backlight or reflector to emit light and produce either monochromatic or coloured images. LCDs are used to construct all sorts of displays from cellphones to computer screens to flat-screen TVs. Keep reading to learn everything you need to know about the different types of LCD displays on the market.
Twisted Nematic LCDs are the most commonly manufactured and used types of monitors across a wide range of industries. They’re most commonly used by gamers because they’re inexpensive and boast faster response times than most of the other display types on this list. The only real downside to these monitors is that they possess low quality and limited contrast ratios, colour reproduction, and viewing angles. However, they suffice for everyday operations.
In Plane Switching displays are considered to be among the best of the best when it comes to LCD technology as they offer superior viewing angles, excellent image quality, and vibrant colour accuracy and contrast. They’re most commonly used by graphic designers and in other applications that require the highest possible standards for image and colour reproduction.
Vertical Alignment panels fall somewhere in the middle between TN and IPS panel technology. While they have much better viewing angles and higher quality colour reproduction features than TN panels, they also tend to have significantly slower response times. However, even their most positive aspects still don’t come anywhere close to holding a candle to IPS panels, which is why they’re much more affordable and suitable for everyday use.
AFFS LCDs offers far superior performance and a wider range of colour reproduction than even IPS panel technology. The applications involved in this type of LCD display are so advanced that they can minimize colour distortion without compromising on the extremely wide viewing angle. This screen is typically used in highly advanced and professional environments such as in the cockpits of commercial airplanes.
Nauticomp Inc. is the leading designer and manufacturer of high-quality LCD panels and displays. All of our touchscreen displays are made to order and customized according to your specific needs and applications. To learn more about our products, please contact us today.