tn vs ips lcd panel supplier
When searching for a liquid crystal display (LCD), consideration of the device’s display technology is essential. Screen technology companies such as Apple and Samsung search for the best possible display panels and panel technology in order to offer their customers the best image quality. In competitive gaming, gaming monitors must be able to provide great image quality but also fast refresh rates so that gamers can play at a fast pace.
Before diving into how exactly liquid crystals affect display features, it is necessary to understand their general role in an LCD monitor. LCD technology is not capable of illuminating itself, so it requires a backlight. The liquid crystals are responsible for transmitting the light from backlight to the computer monitor surface in a manner determined by the signals received. They do so by essentially moving the light differently through the layer’s molecular matrix when the liquid crystals are oriented or aligned in a certain manner, a process which is controlled by the LCD cell’s electrodes and their electric currents.
The methods of alignment, however, can vary between panel types, offering different features and benefits. Two common and popular liquid crystal alignment techniques are twisted nematic (TN) and in-plane switching(IPS).
TN panels offer the cheapest method of crystal alignment. They also are the most common of the alignment methods and have been used for quite a long time in the display industry, including in cathode ray tubes (CRTs) that preceded the LCD.
In TN displays, the electrodes are positioned on either side of the liquid crystal layer. When a current is sent between the back and front electrode, something called an electric field is created that shifts and manipulates the orientation of the molecular matrix.
If no electric field is applied to the specific cell, the crystals experience a 90 degree twist in the alignment. As light from the backlight passes through this twist, the light waves are polarized, allowing them to pass through the polarizer that sits on the surface of the TN monitor.
If an electric field is applied, it can either untwist the TN liquid crystal layer partially or in full, depending on the strength of the field. The structure of TN crystals will typically straighten out when this happens, and some, if not all, light waves will not be polarized properly to pass through to the surface.
Each LCD cell composes a pixel of the display, and in each pixel are subpixels. These subpixels use standard red green blue (sRGB) colors to create a variety of colors to make the pixel display the necessary color to play its role in the overall display. If beneath the subpixel the liquid crystal fully polarizes the light, that subpixel’s specific color would be very bright in the pixel as a whole. But if the light is not polarized at all, then that color will not show up. If partially polarized, only a limited amount of that color is used in the mixture of RGB colors in the final pixel.
A more complex method of alignment is IPS. IPS monitors, unlike the TN, place both electrodes on the same level, behind the liquid crystal layer. When the electric field is applied, this forces the liquid crystal molecules to align themselves parallel to the IPS device layers instead of perpendicularly like the TN molecules.
Opposite of the TN, when the electric field is applied, IPS technology will polarize the light to pass, whereas when the electric field is not applied, the light will not be polarized to pass. Because of the orientation of the crystals, IPS displays require brighter, more powerful backlights in order to produce the correct amount of brightness for the display.
An important consideration is viewing angles. The TN offers only a limited viewing angle, especially limited from vertical angle shifts, and so color reproduction at these angles will likely not look the same as from a straight-on viewing; the TN’s colors may invert at extreme angles. The IPS counters that and allows for greater and better viewing angles that consequently offer better color reproduction at these angles than the TN. There is one issue with extreme viewing angles for IPS devices: IPS glow. This occurs when the backlight shines through the display at very wide angles, but typically is not an issue unless a device is looked at from the side.
In terms of color, as mentioned, TN devices do not have very strong color reproduction compared to other alignment technologies. Without strong color reproduction, color banding can become visible, contrast ratio can suffer, and accurate colors may not be produced. Color gamut, or the range of colors that the device can reproduce and display, is another feature that most TN displays do not excel in. This means that the full sRGB spectrum is not accessible. IPS devices, on the other hand, have good quality black color reproductions, allowing the device to achieve a deeper, richer display, but it is still not the best option if a customer is in search of high contrast (discussed further in a couple more paragraphs).
While TNs may not have the best color quality, they allow for high refresh rates (how often a new image is updated per second), often around 240 Hz. They also have the lowest input lag (receiving of signals from external controllers) at about one millisecond. TN panels often attract gamers because of the need for minimal lag and fast refresh rates in a competitive or time-sensitive setting. In consideration of moving displays like in video game displays, it is also important for fast response times (how fast a pixel can change from one amount of lighting to another). The lower the response time (the higher the response rate), the less motion blur will be shown as the display changes to show motion. TNs also offer these low response times, but it is important to remember that a powerful graphics processing unit, commonly called a GPU, is still needed to push these displays to meet the fastest refresh and response rates.
Standard IPS devices have been known to have slower response time and refresh rates. This can often lead to not just motion blur but ghosting as well, meaning that an image does not refresh fast enough, and so the previous image will remain temporarily burned in the expected new image. In recent years, though, IPS technology has achieved higher refresh rates than in the past through the super-IPS, abbreviated s-IPS.
Oftentimes, refresh rates and frame rate of output devices (such as graphics cards) will not be synchronized, causing screen tearing when two different display images will be shown at once. This problem can be addressed through syncing technologies like Vsynch, Nvidia’s G-Sync, or FreeSync (a royalty-free adaptive synchronization technology developed by AMD).
Another common consideration of customers is the price of each display. TN, though it does not offer as high quality of a display, offers the lowest cost and best moving displays, making it useful if the intended use of the LCD monitor is simple and not too demanding. However, if you intend for something that calls for better color production or viewing angles, the IPS and other methods are viable choices, but at much higher costs. Even though IPS motion displays have reached the speed and rates of TNs, the price for such technology is much more expensive than the TN option.
There are other options besides the TN and IPS. One option is known as vertical alignment (VA) and it allows for the best color accuracy and color gamut. Compared to a typical IPS contrast ratio of 1000:1, VA panels can often have ratios of 3000:1 or even 6000:1. Besides improved contrast ratio, the VA is in between the TN and IPS. To compare the TN vs IPS vs VA, the VA does not have as great a viewing angle as IPS but not as poor as the TN. Its response times are slower than TN but faster than IPS (though at fast refresh rates, the VA displays often suffer from ghosting and motion blur). Due to the contrast ratio benefits, VA technologies are most often desirable for TVs.
And lastly, there is an option quite similar to IPS that is called plane to line switching (PLS). It is only produced by Samsung, who claims the PLS offers better brightness and contrast ratios than the IPS, uses less energy, and is cheaper to manufacture (but because it is only created by Samsung, it is hard to judge pricing). It also has potential in creating flexible displays.
Choosing a monitor has grown to be a more difficult task for the smart consumer. There are three dominating display panel technologies and a whole list of subsets of technical specifications to work through. The most common argument is between TN and IPS display panels. Both panel types are commonly found in today’s world, whether for office work or at a brick and mortar retail store.
As technology keeps on getting better, the difference between technology keeps getting smaller. However, TN and IPS still have some glaring differences. The most notable differences are the color contrast and viewing angles. TN has almost no viewing angle. Color clarity is lost when the user moves slightly to any side of the monitor other than directly in front of it.
IPS display panels have a much wider viewing angle that has no visual loss except at extreme angles that are unrealistic positions for computer users to be in. When TN and IPS monitors are placed side-by-side, the color contrast and clarity of the IPS panel shine brightly. IPS panels have an 8-bit color panel system that allows for a much wider color range than the 6-bit color panel used in TN technology.
Gamers will usually opt for a TN panel. Designers, artists, producers, and creatives that care about color contrast and image clarity will want to choose IPS displays. These are general recommendations and you may find that either technology will suit your purposes just fine.
Twisted Nematic, or TN, panels are among the most commonly-used monitor panels types around. TN is the monitor panel of choice for gamers. This is not because TN panels are known for visual clarity and increased definition, they aren’t.
It is because TN panels have better response times and refresh rates. This means gamers can take advantage of 144Hz or 240Hz monitors with smoother on-screen motion and less input lag. Responsiveness is critical to competitive gaming.
While it may seem like a millisecond difference in motion, it can be the difference between winning and losing in-game. Other processes that rely on quick refresh rates like stock trading may also benefit from a TN panel monitor.
TN panels are the oldest panel technology available in a monitor. This helps to lower the price of TN monitors on the market versus VA or IPS panels. As TN panels are older technology, they offer a faster refresh rate and response time. This is because the panels are producing less clarity and color vibrancy. There are high-end TN panels that offer wide color ranges, but even then TN panels can’t compare to the image quality of IPS panel colors.
In-Plane Switching (IPS) panels were made to portray better color reproduction and viewing angles. This results in excellent color contrast that doesn’t lose clarity because the viewer is at the wrong angle. IPS monitors are known for their color contrast, brightness, and image clarity.
IPS panel displays can also be purchased at high refresh rates over 240Hz. TN panels still hold a slight advantage over IPS panels in response time, but some high-quality IPS displays are able to match the refresh rate and response time of a good TN panel without sacrificing the color vibrancy found in IPS displays. As time moves forward, IPS may displace TN as the go-to choice for gamers.
IPS panels are also excellent for everyday use. They have excellent image clarity that can suffice for digital graphic design. As IPS describes a wide range of products, there are both gaming-specific IPS monitors as well as sRGB focused IPS displays for designers. As it stands, TN monitors are still more commonly available with 1 ms response times than IPS displays.
IPS displays are commonly used for laptops and 2-in-1 devices. The high brightness, color contrast, and wide viewing angle create a better experience on laptop devices.
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.
If you can, check out the monitor you’re interested in in-person before you buy it. You can perform some simple ghosting and motion blur tests by grabbing a window with the mouse and moving it rapidly around the screen. You can also test the brightness, watch some videos, and play with the onscreen display to get a feel for it.
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.
This is how far off-centre you can view the screen without the quality of the image degrading significantly.A TN panel has generally poor viewing angles, if you’re not square-on to your monitor then the image and colours will dull. This isn’t too much of a problem for office work as we almost always have a monitor straight in front of us.IPS panels offer much better viewing angles, so you can have this monitor at an angle to you with almost no change in colour representation at all, but when viewed from some extreme angles blacks may exhibit a glow from the backlight, which can be distracting in darker images.
This is colour accuracy, think if you design a brochure on the screen and you send it to the printers and when you get it back the colours aren’t exactly the ones you specified. This is colour accuracy.Response time, or how quickly the monitor can change the pixels on the screen.IPS panels offer more vibrant and accurate colour representation than TN panels. This is due to their better precision in how the light is passed through the LCD crystals.A TN panel can’t match an IPS for colour accuracy but they do win in refresh rate, although some of the more expensive IPS panels can match a TN. You will see these in Gaming monitors, with a hefty price tag. When does response time matter? Anything with fast moving images (some games, watching sport etc).
The difference between the brightest whites and the darkest blacksTN panels loose out here again to IPS offering higher contrast ratios. Higher contrast we generally associate with better image quality, it’s not entirely accurate but it’s maybe the easiest to tell the difference on.
So which one for an office PC?If the user is doing any design based work where colours on the screen need to be as close to what may be printed as possible, or if the user will have multiple monitors off-centre and doesn’t want the image to degrade, or just wants a vibrant and generally great viewing experience, then an IPS panel in monitor will give you that.Otherwise a TN panel is perfectly acceptable for general office use and is better for your budget.
It stands for twisted nematic phase and is the oldest technology in LCD technology. This refers to the twisted nematic effect, which allows liquid crystal molecules to be voltage-controlled. The TN effect is used to change the orientation of the liquid crystal when a voltage is applied. In the absence of voltage, the crystal molecules would twist 90 degrees to allow light to pass through. Then, when a voltage is applied, these crystals are essentially undistorted and bind to a layer of polarization, preventing light from passing through.
IPS stands for in-plane switching. Like all liquid crystal displays, it also uses voltage to control the arrangement of liquid crystals. However, unlike TN, IPS liquid crystal uses a different crystal orientation, where the crystal is parallel to the glass substrate. Instead of "twisting" the crystal to change the amount of light passing through, the IPS crystal is essentially rotating, which has many advantages.
Support backlight brightness adjustment and automatic standby screen saver function; Support multi-language font library, picture, TWO-DIMENSIONAL code display;
VA stands for Vertical Alignment, and as the name suggests, this technology uses vertically aligned liquid crystals that tilt when a voltage is applied to send light through, a key difference between IPS and VA. With VA, the crystals are perpendicular to the substrate, while with IPS, the crystals are parallel.
The TN panel has the weakest viewing angle, with significant changes in color and contrast in the horizontal (and especially vertical) direction. Typically, the viewing Angle is rated at 170/160, but in practice, you"ll get a very bad offset when viewing anywhere but dead spots. Overall, this is a big weakness for TN.
Both the VA and IPS panels are significantly better, with the IPS having the best viewing angle. The 178/178 view level is a true reflection of the IPS, and you won"t get much color change or contrast from any angle. In this respect, VA performed less well than IPS, mainly due to the contrast offset at the eccentric angle. Because the VA (especially the TN) has some color and contrast deviation when tilted to view, they are not as suitable for color-intensive professional work as the IPS panels, which is why you see most professional-grade displays with IPS.
In terms of brightness, there is not much difference between the three technologies because the backlight that determines brightness is separate from the LCD panel. However, there is a significant difference in contrast.
TN and IPS panels typically have a contrast ratio of 1000:1. TN panels usually have the lowest contrast, with entry-level panels ranging from 700:1 to 900:1 and good panels reaching 1000:1. The range of IPS is wider, with some as low as 700:1, but some desktop monitors and some laptop-level monitors that use IPS have the upper limit as high as 1500:1.
For the VA panel, the best one can exceed 4500:1 easily. VA LCD display provides a far darker screen than TN & IPS. That is why they are used in the vehicle dashboard.
Color quality is another important difference between TN displays and other display panels.Color quality can be divided into two categories: color depth and gamut.
On both counts, the TN panel is at a disadvantage. Many TN displays, especially entry-level models, are native to only 6 bits and use frame rate control (also known as FRC ) to achieve standard 8-bit output. The 6-bit panel is prone to color ribbons, while the native 8-bit panel has a smoother color gradient and therefore better color output.
For color gamut, this is also an area where VA and IPS provide a superior experience. The best TN panels tend to be restricted sRGB. VA panels usually start with full sRGB coverage and reach about 90% DCI-P3 coverage. Using the IPS LCD panel, you can find the best panel with full DCI-P3 and Adobe RGB coverage. This is why you see most professional-grade LCD displays using IPS panels.
The TN panel has consistently had the best refresh rate and response time, which is a key advantage of TN. TN panels used to be the only panel type able to hit 240 Hz. More mainstream displays using the IPS panel typically range from regular 60Hz to up to 240 Hz. The peak frequency of the VA panel is about 240 Hz.
Another major consideration is response time, which affects the panel"s ghosting, smearing, and overall clarity. Early IPS and VA panels were very slow, but there have been significant improvements, so the differences between the three technologies are not as obvious as they once were. TN still has the advantage.
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.
When choosing a computer monitor, always take into account the type of panel display uses in addition to the other technical specifications. Flat screens LCD monitors primarily use three different panel types: TN, IPS or VA (in its different forms). The choice of panel is very important, as it determines whether the monitor is responsive enough for your first-person shooters, good at reproducing colors if you work with design or photography, or in some cases both.
The most common type of panel type is the TN–twisted nematic. The others are Vertical Alignment (VA) and In-Plane switching (IPS). Additionally there are different versions of the latter two display types. VA computer monitors primarily come in two versions: Patterned Vertical Alignment (PVA) and Multi-domain Vertical Alignment (MVA). Each technology has its pros and cons and what to look for depends on what you plan on using your monitor for.
TN (Twisted Nematic) is the most common technology and also the oldest. The main advantage is that it provides the shortest response times, making them good for gaming. In combination with LED back-lighting, TN monitors also offer high brightness and draw less power than competing technologies. Another important factor is that they are cheap to manufacture, resulting in low prices for end users.
The drawbacks to the technology is the color shifts that occur at wider viewing angles. There are large differences in quality between different products, but the lower-end ones will exhibit color shift even at moderate angle changes. A TN-based display can usually be identified through these color distortions when viewing the picture from above or from the sides.
The main advantages with IPS monitors is that the technology offer noticeably better color reproduction as well as much better viewing angles. The downside used to be a difficulty to emphasize blacks, which in turn meant problems with the contrast. IPS panels were also very expensive and slow in the beginning.
Now the manufacturers have started producing so-called Super-IPS (S-IPS) panels at reasonable prices. Response times have crept down considerably and the contrast is much better. In addition, color display and the options to calibrate the colors are superior to the other panel types. IPS panels keep colors constant, even in sharp angles.
Further developments have led to MVA and PVA, where the manufacturers are trying to find a technique that would combine the advantages of both TN and IPS. MVA panels offer good viewing angles and generally better blacks and contrast than either TN or IPS panels. Their response times also look good on paper, but unfortunately not in the real world
Even if the response time for white to black is low, it is often considerably higher between two dark tones, leading to Ghosting effects. Another weakness is the color reproduction, which in itself is better than TN but not as good as IPS. PVA panels are in many ways similar to MVA, but have even better blacks and great contrast. The problem with ghosting remains, however.
As you have probably gathered by now, there is no single type of LCD that is good at everything. What panel type you choose must be a compromise based on how you use the monitor. Gamers will generally be happy with TN panels and their exceptional response time. Photographers and graphic designers should buy an IPS monitor instead.
If you are a writer or work in any other field where contrast is an important factor you should have a look at a monitor with an MVA or PVA panel. If you use the screen to the little bit of everything, you might choose a TN-based monitor to save money or a high-end IPS with low response time if you won’t settle for just the mere basics.
You may be surprised to know that not all LCD panels are created equal. That’s because there’s more than one type of LCD screen. While their differences are subtle, the type of panel technology significantly impacts its image quality and display performance.
In this post, we’ll compare the three types of LCD panel technologies – IPS vs. TN vs. VA – and the pros and cons of each. Knowing the differences is critical to help you find the best type that fits your needs.
The main difference between them is how they arrange and move the liquid crystal display (LCD) molecules in their panels. This, in turn, has a profound effect on image quality, refresh rate, and other performance factors.
A twisted nematic or TN monitor is the oldest and most common type of LCD still used today. It uses a nematic liquid crystal, meaning it has its molecules arranged in parallel, but not on a level plane. These can twist or untwist themselves when a voltage runs through them, hence the name. This twisting effect either allows or blocks light from passing through, turning screen pixels “on” or “off.”
In-panel switching (IPS) panels work similarly to TN monitors, except that the liquid crystal molecules are parallel to the glass panel of the screen. Instead of twisting like in TN monitors, these molecules rotate when a voltage is applied.
Vertical alignment (VA) displays arrange their LCD molecules vertically, perpendicular to the glass panel. When voltage is present, they tilt themselves instead of twisting or rotating.
Being the oldest LCD technology still in use today, TN monitors undoubtedly have their share of benefits, otherwise they wouldn’t have this much longevity! Comparing TN vs. IPS and VA, TN panels are the cheapest and fastest to manufacture. As a result, they are better for the more budget-conscious user. They’re also the most versatile LCD type and have no real-world limits on size, shape, resolution, and refresh rate.
You’ll be hard-pressed to find a TN monitor in a reasonable price range that can display 24-bit (8 bits per channel) color at a wide color gamut, and contrast is limited. The second problem with TN monitors is that because the molecules are not oriented uniformly across the plane, it suffers from a narrow viewing angle. That is, anyone looking at the screen off-axis, such as from a 45-degree angle, will most likely find the image completely un-viewable.
Comparing IPS vs. TN, the former is a drastic improvement over the latter. IPS panels resolve some of the limitations and problems of TN monitors, specifically color accuracy and issues with viewing angles. However, IPS panels suffer from a phenomenon called “IPS glow,” where you can see the display’s backlight clearly if you view it from the side.
Another significant limitation of IPS panels, particularly for gamers, is that they have the lowest refresh rates of any LCD type. And while the color fidelity is fantastic with IPS vs. VA, the latter has superior contrast ratios over the IPS panels.
The biggest strength of VA panels lies in their excellent contrast ratio. Keep in mind that irrespective of the LCD technology used, a backlight is required; this is typically LED. The LCD’s ability to block this light will determine how well it can reproduce blacks, and it’s in this detail where VA excels. That is, blacks are dark and rich in a VA panel vs. IPS. They also lie somewhere in the middle regarding overall image quality, color reproduction, viewing angle, and refresh rate. Overall, VA is a good compromise between TN and IPS.
A drawback of VA vs. IPS and TN is it exhibits an relatively high response time. As such, VA displays are more prone to motion blur and ghosting if you’re viewing fast-moving visuals on a screen, such as when you’re playing a racing game.
It’s worth noting that there is no universal “right” choice for choosing a type of LCD panel. Which one you pick depends on your budget, your intended use, and your expected outcome.
A TN monitor is best if you’re looking for a low-cost, readily available display for tasks that don’t rely on contrast and color accuracy, such as sending emails or typing a document or spreadsheet. They are also the best choice for competitive gamers who want the best refresh rates and response times to give them an edge in online multiplayer games, despite a technically lower image quality.
With their superior color reproduction, IPS panels are best for graphic designers, film editors, photographers, and other visual design professionals. For them, image quality including contrast and color accuracy are more important than refresh rates. IPS panels are also fantastic for casual gamers who want the best visuals and don’t mind the compromise in refresh rate or response time.
Whichever LCD type you choose, make sure you get the right cable, a Premium High Speed HDMI® Cable, or an Ultra High Speed HDMI® Cable to ensure delivery of all the HDMI 2.1 features. Doing this ensures that you’ll get the best experience on your screen.
Everyday, we look at LCD display, TV, cell phone, monitor. It becomes a necessity in modern society. LCD panel is the most important part of an LCD display. It determines LCD screen"s performance, e.g. brightness, contrast, color and viewing angle. Therefore, picking the right type of LCD panel is critical to your application.
These names reflect the alignment of crystal molecules inside the LCD, and how they change when they are charged electrically. All liquid crystal displays change the alignment of liquid crystal molecules to work, but the manner in which they do so can drastically affect the image quality and response time. Each panel type has its advantages and disadvantages. The easiest way to choose between them is to decide which attributes are most important to your project. It mainly depends on what you use your LCD display for, and your budget.
TN is the most mature technology in LCD panel manufacturing. When there is no voltage difference between the two transparent electrodes, liquid crystal molecules are twisted 90 degrees, in combination of upper and bottom polarizers, allows light to pass through LCD. As voltage applied, crystal molecules are untwisted and aligned to the same direction, blocking light.
In IPS panel, crystal molecules are parallel to the glass substrates at initial stage, LCD is off. When the in-plane electrodes is charged, crystal molecules are rotated, modifying light"s direction. Which lights up the LCD display.
As its name suggests, VA panel"s liquid crystals are aligned vertically without charged. When a voltage is applied, the molecules tilt and modifying light direction.
So in summary, TN panels twist, IPS panels use a parallel alignment and rotate, while VA panels use a perpendicular alignment and tilt. These difference create LCD display with distinctive performance.
IPS LCD is the clear winner in this aspect. It has 178/178 viewing angle ratings. Which means you can look at IPS LCD display from any angle without the image shifting in color and contrast. VA LCD has pretty wide viewing angle, too. But it has contrast shifts at off-center angles. As for TN LCD, viewing angle is its weakest point.
Most TN LCDs have 6-bits colors. Manufacturers use frame rate control (FRC) to enhance its color performance. For IPS and VA panels, you can still find 6-bits entry level LCD. But most of them are 8-bits. And IPS technology can provide natively 10-bits colors.
Color gamut is another part that VA and IPS panels shine at. The best TN LCD can reach sRGB gamut. VA panels typically start with full sRGB coverage, and get to around 90% DCI-P3 coverage. With IPS LCD panel, you could find the best ones full DCI-P3 and Adobe RGB coverage. That is why you see most professional grade LCD displays use IPS panel.
There is no inherent differences among the three panel technologies, because LCD backlight is the main factor here. However, there is a big gap in terms of contrast ratio. TN LCD panel tends to have the lowest value among the three. IPS LCD screen sits in the middle can reach 1500:1. For VA panel, the best one can exceed 4500:1 easily. VA LCD display provides far darker screen than TN & IPS. That is why they are used in vehicle dashboard.
TN panel does have an advantage when it comes to refresh rate. The panel offers the best refresh rate and response time. This is the reason why most gaming LCD monitors are made of TN panel.
TN LCD provides the best refresh rate and economic solution. If your application requires wide viewing angles and good color presentation, VA panel is probably the choice. While IPS has the best overall visual performance, in general it is more expensive than the other two.
With so many companies in the market churning out newer and newer gaming monitors, shopping for LCD monitors can be confusing. Not only is there a lot of marketing noise out there today, but there are also debates on what panel/monitor type is the best?
When it comes to buying either a TV for home or a monitor for your office or a display for that gaming setup in your basement, things can be distilled down to usage and based on that; you can compare what different panels have to offer and how they will suit you. In this article, we will be having a quick look at the three most commonly used panels – TN, IPS and VA and helping you understand what they have to offer, and what they can be best used for. But first, a basic run on what an LCD is.
The major drawback of the CRT (cathode ray tube) technology was that it occupied quite a significant amount of space. The CRT displays worked on the principle of ‘light emission’ and they consumed a lot of power, which just added up to the size issue. The solution to these problems came in technological research on developing a screen that consumes less power (hence, increasing productivity), and which was smaller. Lit using fluorescent tubes, LCDs (liquid crystal displays) consume less power, are way thinner than the CRTs, and work on the principle of ‘blocking light’ rather than emitting it.
LCDs are made from a passive/active matrix grid made of conductors, the latter called as thin film display (or a TFT). Pixels are mounted on this grid at each intersection (and an active matrix has a transistor located at each pixel intersection). This network structure controls a pixel’s luminance and consuming a little amount of current. This ability leaves us with a choice to switch the current on and off more often on the grid, and this leads to a high ‘refresh rate.’ And a high refresh rate means a ‘smoother’ operation.
Developments in these screen types lead to LED TVs. The main difference between these and the LCDs is that they are lit using Light Emitting Diodes instead of fluorescent tubes. So technically, a LED display is a ‘LED backlit LCD screen.’
This LED backlighting helps in enhancing the color contrast and it consumes less power as compared to fluorescent tube lit panels. It significantly improves the overall picture quality by tapping into a wider RGB color range, and there is a better brightness achieved which allows you to see the images clearly, even in well-lit environments. On top of these things, LED backlit displays to consume less power and are lightweight too. So there are no drawbacks of this technology as such, resulting in backlighting being used in more and more panels every day. Today, we have three types of backlighting: White Edge, Full LED array, and Local Dimming LEDs.
White edge implements a diffusion panel, with white LED around the edges of the screen. This helps disperse the light evenly throughout the screen. A full LED array, as the name suggests, implements arrays of LED lights placed right behind the screen that collectively controlled for an even light dispersion. The third one is the Local Dimming LED system, which implements an array of dynamic led lights that can either be controlled in groups or individually to obtain an even light pattern.
This information, however not essential for everyone to know, is a good bit for panel enthusiasts and pro gamers, as having a high refresh rate depends on the panel’s build and it’s resolution. Now, let’s go ahead and have a look at the three most commonly used panels on these LCD monitors – TN, IPS, and VA.
The most common LCDs are based on TN (Twisted Nematic) panel designs. Manufactured on a vast scale and pretty cheap, TN displays can be found in most homes. Primarily made for supporting low response times, TN panels remain to this day, a cheaper option for gamers who want a massive resolution with a low response time and a high refresh rate. Not to say that the IPS panels don’t have these features, but an IPS panel with the same features as a TN (1ms response time, QHD resolution and a 144Hz refresh rate for example) will always be more expensive. However, while the price is good with the TN, the color quality and viewing angles take a toll. They are the drawbacks of a TN panel when compared to other panels out there.
TN displays, (TFT-LCDs for example), work by passing light through two polarized screens, a color filter and liquid crystals that tend to twist and block light in correspondence of the current applied to them. This type of an arrangement leaves a lot in your hands as you can change the amount of current applied to adjust the crystal twists. Hence, you can achieve virtually any color or shade reproduced on the screen. But while precise adjustments are possible with a TN display, there are some drawbacks to this structure.
Every LCD’s pixel is constructed using some red, green and blue sub-pixels. Colors and shades are produced by mixing different brightness levels for these pixels that result in the perception of a particular solid color by the user’s eyes. The problem with TN panels comes from its adoption of a 6-bit per channel model, which outputs 64 shades per color, instead of the 8-bit per channel, 256 shades implementation. Needless to say, color accuracy takes a toll here. And while the TN compensates for this issue with ‘dithering,’ (using alternating colors to produce a certain perceived shade) it is still a poor substitute for 24-bit color reproduction. On top of that, narrow viewing angles don’t help the case, as there is a ‘washout’ produced that puts TN panels at a low level concerning color accuracy.
But if your main concern is not the aesthetics of the performance, but the performance itself, TN LCD screens reign supreme over other panel types because of providing us low response times and high refresh rates on a budget.
TN panel displays have very fast GTG pixel response times that are usually well under the typical 5ms TFT-LCD average. This makes these displays a good choice for competitive gamers who are willing to sacrifice some color accuracy and viewing angles for great performance at a good price.
In-Plane-Switching, or IPS, was designed to overcome the shortcomings of a Twisted Nematic panel and they are replacing TN panels. These panels also use polarized filters, liquid crystals, and transmitters. However, in this case, the arrangement is different. The liquid crystals in an IPS panel design are aligned in a way that allows less light to distort and achieves better color visibility. Additionally, IPS panels use 8-bits of depth per color unlike TN’s 6-bit, which results in a wider 256 shades spectrum. This takes care of the color accuracy problem.
The second thing that is improved in IPS panels is the range of viewing angles. While Twisted Nematic panel displays ‘washed out’ at shallow angles, IPS displays have rich colors that don’t shift/fade when viewed from side angles. One other significant improvement of the IPS screen was that there were no trailing distortions when you touched them. This made them ideal for Touch-screen applications.
While marketed as the best of the best, IPS screens have some drawbacks of their own. The major one happens to be the cost. The construction of IPS panels requires a greater number of transmitters and lighting for each pixel. Now, the higher the resolution of the constructed panel will be, the greater number of pixels will be mounted on the panel. This results in a complex architecture, and they cost more than their TN counterparts. However, with