lcd screen refresh rate in stock

• Perform highly diversified duties to install and maintain electrical apparatus on production machines and any other facility equipment (Screen Print, Punch Press, Steel Rule Die, Automated Machines, Turret, Laser Cutting Machines, etc.).

A significant point is that the phosphors on a CRT screen have their "persistence" designed to support a particular fairly narrow range of refresh rates. The phosphors could be made to have really long persistence (seconds), so there would be no serious flicker down to even maybe a 5 second refresh interval, but then, since the phosphors can only be "turned on" and not "turned off", you wouldn"t be able to see motion much faster than that. (Some early CRT terminals used long-persistence phosphors, with the characters "drawn" on the screen instead of scanned. This didn"t provide very fast "refresh", but it only had to be as good as a 10 CPS Teletype.)

LCDs have the property that they can be turned on or off, at some relatively high rate, and once set one way or the other they have a relatively long persistence, on the order of a second or so. For this reason they can support a wide range of refresh rates.

LCDs are "scanned" via an X-Y matrix of wires, with a pixel at each point where two wires cross. Only one pixel can be manipulated at a time. The voltage on a pixel must be maintained long enough to "charge" the pixel, so that it will hold the charge until refreshed, and all pixels must be visited on each refresh cycle.

And, in addition to the charge time, the liquid inside needs time to mechanically reorient its crystal structure (though, at a physics level, this reorientation is tied at least partially to the "charge" time). Both of these factors place an upper limit on refresh rate.

To show moving images, a television has to change out the pixels displayed on the screen. This is what we mean when we say the television refreshes the image -- it has to draw images in pixels so quickly that the human eye can"t detect the process. If televisions didn"t refresh the pixels, they could only display a still image. That"s not good TV.

The standard television refresh rate is 60 hertz. That means the screen displays an image 60 times every second. An interlaced television will refresh the odd and even lines 30 times a second each in an alternating pattern. Even at this rate, we don"t notice the screen refreshing because it"s too fast for us to detect.

Early LCD high-definition televisions had great resolution but experienced some problems when displaying fast-moving images on screen. Action movies and sporting events in particular gave early LCD sets problems. The images tended to blur as they moved across the screen. Plasma screens didn"t have the same problem, giving that format the advantage when it came to high-speed television content.

The solution to the LCD problem was to increase the refresh rate. A few years ago, the first 120 hertz sets showed consumers that by doubling the refresh rate, the set could reduce the blurring effect. By early 2009, sets with a 240 hertz or higher refresh rate were either on store shelves or scheduled for release.

The higher refresh rates indicate that the televisions refresh the screen more often each second. Whether the faster rate has a noticeable effect on the viewer"s experience is subjective. A viewer may not be able to tell the difference between a set refreshing at 120 hertz and one with a 240 hertz refresh rate.

Even though we don"t see it, our TV is constantly refreshing itself every second. A refresh rate defines how many times per second it draws a new image on the screen, and it"s written out in Hertz (Hz). A 60Hz refresh rate means that the screen is refreshing itself 60 times every second, and at 120Hz, it"s refreshing itself 120 times every second. This is different from frame rate, which is how many times per second the source sends a new frame. So if you have a source that"s displaying 60 frames per second, you always want your TV to be refreshing itself 60 times/second so that the refresh and frame rate match up, otherwise motion may look blurry.

The refresh rate affects motion handling; the more times the display can draw a new image the better it is for fast-moving content. Modern TVs either have a 60Hz or 120Hz refresh rate. Most high-end TVs have a 120Hz refresh rate, but it doesn"t mean they"re inherently better at motion handling either. The response time determines how good motion looks; a quick response time means that motion looks clear, while a TV with a slow response time leads to motion blur. Response time and refresh rate are indirectly related as a 120Hz panel is expected to have a better response time than a 60Hz panel, but it"s not a guarantee.

Since not all content will automatically have the same frame rate as your TV"s refresh rate, there are also ways a TV increases the frame rate to match up with the refresh rate, improving the appearance of motion.

A 60 fps video played on a 120Hz TV should look almost identical to the same content played on a 60Hz TV. In a case like this, the TV either adjusts itself to match the refresh rate of the source, which effectively turns it into a 60Hz TV, or it simply doubles every frame.

As you can see from the picture above, a TV with a higher refresh rate doesn"t produce less motion blur. Since both of these TVs have a very similar response time, 60 fps content results in an almost identical picture.

While a 120Hz TV doesn"t inherently produce better motion, it can provide a few advantages over standard 60Hz TVs. One of the most important advantages is the ability to play back content that is meant to be displayed at 24 fps, which is often found in movies. Most TVs can simply lower their own refresh rate to 24Hz when the content is 24 fps, but some sources, such as Chromecast, output video at 60 fps, even if the content is 24 fps. This means that the TV"s refresh rate remains at 60Hz, and motion won"t appear smooth, which is an effect called judder. A 60Hz TV has trouble removing 24 fps judder because 60 isn"t a multiple of 24. To display this type of content, a technique known as a "3:2 pulldown" is used. Basically, 12 of the 24 frames repeat three times, while the other 12 repeat twice, totaling 60 frames. Not everybody notices this, but it causes some scenes, notably panning shots, to appear juddery. However, 120Hz TVs have an advantage here because they can simply display each frame five times since 120 is a multiple of 24.

There are a few sources that display 120 fps, such as the Xbox Series X or the PS5, and having a 120Hz TV helps display this content at its max frame rate. While it"s rare to find content other than games with this frame rate, displaying 120 fps has a significant impact on the perceived motion. As you can see in the picture below, content looks much smoother at 120 fps than at 60 fps on a 120Hz TV.

Another place where 120Hz is useful is if you enjoy the motion interpolation feature found on TVs (also known as the Soap Opera Effect). It allows the TV to generate frames between existing ones, increasing the frame rate to match up to the refresh rate. Most TVs have this feature; a 60Hz TV can interpolate 30 fps content, while a 120Hz TV can interpolate 30 and 60 fps content. This is why a 120Hz TV is an advantage over 60Hz since it can interpolate more types of content.

There are other ways to produce a similarly clear image as a 120Hz refresh rate. Many TVs these days have a feature called Black Frame Insertion. Essentially, the TV displays a black screen between each frame, which most people can"t see, but it can also make the screen dimmer. On most LED TVs, this is achieved by adjusting the flicker frequency of the backlight, which results in the backlight being turned off for half the frame. On OLED TVs, which don"t have a backlight, this is done by inserting a black frame in-between each frame.

A TV is only as good as the content you are playing, and unfortunately, very little 120 fps content actually exists. With the new HDMI 2.1 standard, gaming consoles like the Xbox Series X and PS5 support 120 fps, but there isn"t much online content available at such a high frame rate. We"ve compiled a couple of lists of common entertainment sources as well as their respective refresh rates.

A source"s frame rate isn"t always constant, especially in games. It may drop and if that happens, it can lead to screen tearing because the frame rate of the game and the refresh rate of your TV don"t match up. There"s a feature called variable refresh rate (VRR) that aims to match the refresh and frame rate on-the-go, so if the frame rate of the game drops, the TV automatically lowers its refresh rate as well. This is only possible if both the TV and the source support VRR.

TV companies will often market their refresh rates in ways to make it seem like it"s higher than it actually is. A company like Samsung uses the term "Motion Rate"; the Motion Rate on a 60Hz TV is 120, while a 120Hz model has a Motion Rate of 240; they effectively double the refresh rate to come up with this number, and there"s no real explanation as to why it"s marketed like that. LG uses "TruMotion", Vizio has "Effective Refresh Rate", and Sony has two terms: "MotionFlow XR" and "X-Motion Clarity". These marketing numbers don"t really mean anything, and you need to check the TV"s specs to find the real refresh rate.

LCD TVs are lit by LED lights, and most TVs use Pulse Width Modulation (PWM) to dim the backlight. What this means is that the backlight turns itself off every few seconds, so it doesn"t get too bright. It"s not visible to the human eye because of how fast the frequency is. Flicker frequency, like refresh rate, is measured in Hz because we want to know how many times it flickers every second.

If the flicker frequency doesn"t match up with the refresh or frame rates, it can create some image duplication. As you can see in the images below, motion on the LG UN8500 has image duplication because its backlight flickers at 120Hz; this is double the 60 fps source. However, the Sony X800H has a flicker-free backlight, so there"s no image duplication - the motion blur is caused by a slower response time.

A refresh rate defines how often the screen refreshes itself every second. Although we can"t see it, the TV draws a new image from the source every few milliseconds. Generally, a higher refresh rate TV results in better motion handling, but it"s not always the case as there are other factors that come into play with motion. It"s important that your source"s frame rate and the TV"s refresh rate each match in order to create smooth, stutter-free motion. For most people, a TV with a 60Hz refresh rate is good enough since there isn"t much 4k content that goes past 60 fps. However, 120Hz TVs with HDMI 2.1 support are beneficial to gamers as they allow for higher frame rates.

The best — and easiest — way to know what refresh rates your system can support is by playing games and seeing how they perform. Use a frame rate monitoring utility like Fraps to display your current FPS (frames per second) as you play. Most frame rate monitoring utilities will have the ability to benchmark your average FPS , which keeps track of how your system performs over the course of a gameplay session.

Ideally, you’ll want the game’s frame rate to match the monitor’s refresh rate 1:1 for an ideal experience. For example, your system should be outputting 144 FPS to get the full benefit of a 144Hz monitor.

That said, you can still enjoy a higher refresh rate, even if it doesn’t reach the limits of what your display is capable of. Playing at 110Hz is better than playing at 60Hz, and you can always upgrade your CPU and GPU later to get to 144 FPS.

If your system struggles to run games higher than 60 FPS, it’s unlikely you’ll see much benefit from a high-refresh rate display, but it might be worth investing in one if your PC is capable of producing higher than 60 FPS.

If you’re trading frequently, you know that monitors for trading are the ones that let your mind directly enter the screen, not just notice what’s ticking across it. They don’t distract you as you dive headfirst into the world of crypto, dividends, or corporate mergers. With West Coast stock trading hours opening at 6:30 a.m. and crypto being a 24-hour scramble for the best, there are a lot of environmental conditions to consider. So, what can bring you the best in terms of eye health, easy reading, and, of course, financial gain? We’ve delved into what’s available and found the best monitors for trading, no matter your purpose or needs.

To compile our list, we combined personal experience, peer input, respected critics, and user impressions. We also considered the environment of the modern work-from-home trader and what they needed. The reality is that there is a lot of diversity in these needs. For example, the stock trader is the most likely to complain of morning light due to the early nature of market openings. On the other hand, the day trader needs to assess information rapidly with the most readable and information-dense screen possible.

The screen is a decent 1080p with an anti-glare matte screen. While it only refreshes at 60Hz, from a hardware perspective it holds up and there are very few eye health complaints with this monitor.

For personal comfort, the screen has the ability to tilt upwards by 30 degrees and down by 5 degrees. It also offers a 90-degree rotation for people that prefer to trade in a vertical portrait mode. Furthermore, you can use it with one of our best computer monitor stands to make the whole experience more customizable than ever.

The thin edges are great if you want to set up a second monitor for your computer explicitly for trading. Swivel it into vertical mode and you’ve got a great secondary monitor with a screen that practically touches your first. Alternatively, keep it horizontal and throw your old monitor off to the side for a similar effect, it is all up to you.

The Dell P2419H works perfectly for those mornings when you want to jump straight out of bed and head straight to the trading desk. Open your blinds fully and harness the power of the rising sun without fear of glare and eye strain with the anti-glare screen.

In fact, this screen should work wonders for your eyes throughout a heavy day of trading, reading business reports, and keeping up with the news. Being TUV-certified, the screen has passed tests showing it to be flicker-free and a reducer of blue light, which affects sleep. While the blue light adjustment does seem to have bled over into the color quality a tad, the trade-off seems well worth it.

In addition to rotating into portrait mode, as the HP VH240a did above, the Dell also has access to the Dell Display Manager. This software allows you to subdivide your screen as you wish, as if it were two screens in one. This is perfect for the trader with low desk space or that wants to compare two charts side-by-side.

Part of this comes down to the Low Blue mode software built into the monitor, so you can adapt your monitor for nighttime use easily. Paired with AMD FreeSync tech, which adjusts the refresh rate to match the FPS of used programs, and you have a system that is easy on the eyes.

Whether you find yourself working or playing late into the night, or a little bit of both, you’ll find something to like about the AOC C24G1. The sharp contrasts, but soft colors of the monitor allow for easy reading and the monitor is a great gaming monitor in its own right. One of the few downsides is that you might experience a tad bit of “ghosting,” or image-trailing artifacts, when gaming. Overall, this rates as a way above-average pick for a standard price.

Why it made the cut:If you can afford it, this monitor is a great ultrawide with easy on-screen splitting for quick information access when it counts most.

The LG 34WN80C-B is an ultrawide that proves itself wonderfully in the world of work-at-home productivity. The software included creates a powerful office display that will make you want to work. Easy USB-C connectivity makes it one of the best monitors for MacBook Pro trading, with the extra screen space making it all that much more enticing.

LG’s On-Screen control options allow you to choose a grid for various apps and windows, divvying up your screen like new residential lots. Just drop everything into place and go. The whole thing gives a pseudo-multi-monitor feel without all of the extra desk space, installation, or neck movement required.

You can see quite a few of the features, like rotation to portrait mode and thin edges (Acer calls it “Zero Frame,” which feels a bit too generous), that other monitors on the list had. The humble Acer even has a refresh rate over 60Hz, all without the extra cost.

While the screen does come a bit small and it does lack VESA mounting and associated features, this monitor could easily fit as the budget option for just about any monitor listing it qualified for. People simply like it, and we all have to respect what it can do for the cost.

The higher the resolution of the screen, the better your data will appear. Resolution, at a very basic level, means how many pieces of information are in a given area. For your computer screen, that means that high-resolution monitors are able to display more info in a smaller space.

Fortunately, there are no modern monitors with such terrible resolutions, but the principle remains the same. Low-resolution displays can mess with our ability to interpret charts correctly and lead to big, preventable losses in the trading world. Meanwhile, high-resolution screens can display accurate information from several windows simultaneously.

There are three main monitor finishes: glossy, matte, and semi-gloss. Sometimes individual manufacturers have their own type of monitor, too, but most screen types fall within these three categories. Let’s take a look at these three types from the perspective of an active trader:

Glossy:Glossy finish screens are smooth and have a reflective shine. Praised for the vibrant, bouncy colors they give off, glossy screens are bright and exciting, with rich and crisp colors. Unfortunately, they also have a tendency to reflect light and give off glare. For the early morning stock trader, this can be a huge disadvantage when trying to catch up on the latest news or get in that early morning options pick as markets open. Even worse, you’re much more likely to wake up to a layer of visible dust across the screen when using a glossy finish monitor.

Matte:On a microscopic level, these screens are “rougher” than glossy monitors. The result is a screen that is a bit duller with somewhat muted colors, which won’t make them amongst the best monitors for color grading. Matte screens, however, are much less prone to glare, even when in direct light. In the mornings, you’ll be greeted to a screen that appears cleaner and less dusty. The dust will still be there, and possibly more difficult to clean away due to the rough nature of matte screens, but it won’t be as much of an apparent hassle.

Semi-gloss: This type of screen is somewhere between the other two. As a result, it has some of the pros and cons of each and can be a good compromise for those that prefer a balanced approach to their purchases.

Monitors constantly flicker as a result of changing pixel colors. This flickering quality is measured in times-per-second using Hertz (Hz). Screen flicker, even when not noticeable, can pull you out of flow, make you miss important details, and give you major eye strain and fatigue (factors that are avoidable with the right monitors). Traders wanting to burn the midnight oil, either catching up on the day’s news or watching crypto markets, can be particularly damaged by this tiring phenomenon.

The lower the refresh rate, the worse the effects of screen flicker. Unfortunately, refresh rates aren’t the only issue. Even monitors with 144Hz can have flickering issues with hardware malfunctions, as our best 1440p 144Hz monitors guide sadly had to mention about the experiences of the early buyers of the Samsung Odyssey G7.

So, don’t look at refresh rates as the sole reducer in screen flicker. Take a close look at customer reports of hardware issues, especially months after purchase. Similarly, look for “anti-flicker” tech to make sure the monitor has your eyes’ best interest at hand. Still, there is nothing wrong going with a monitor with a high refresh rate and we won’t be considering those below 60Hz.

These three acronyms are commonly used for screen lighting technology and should be properly understood by the trader before making a monitor purchase. Here is the relevant background on each type:

OLED stands for Organic Light-Emitting Diode. OLED monitors are relatively new and do away with backlighting in favor of thin screens. They are capable of the lowest response times and highest refresh rates.

LEDstands for Light-Emitting Diode and is probably the type of lighting you are most familiar with. After all, the typical Christmas tree lights are LED. When used in monitors, they have great viewing angles and reduce eye fatigue when compared to LCD screens.

LCD stands for Liquid-Crystal Display and uses backlighting to help you see the display. Typically, this type of monitor will use more power, have a lower viewing angle, and be slightly worse for your eyes than LED screens.

Typically, most traders will want OLED or LED screens for a high-quality, low-energy product that also reduces eye strain. For a majority of cases, that will mean using an LED screen, but we’re excited about the potential for more OLED monitors to make the cut as more and more are produced.

You should probably have at least two monitors for day trading, like most office work. Another option is getting an ultrawide with On-Screen sectioning, like our day trading choice, the LG Ultrawide WN80C. Day traders might also consider getting one of our best portable monitors choices for when they want the adrenaline rush of swing trades on the go.

You really only need 60Hz for day trading, but more will always be better. To keep your eyes from getting tired from screen flicker, 60Hz should do the trick—screen flicker issues usually have a lot more behind them than simply refresh rate, after all. The intensity of specs needed for a day trader and a pro gamer just isn’t going to be anywhere near the same.

Thanks to OnePlus, 90Hz displays became a popular word amongst smartphone enthusiasts since 2019. High refresh rate monitors have been around for ages, but it’s only for the last couple of years that the tech has successfully transitioned to phones. (हिंदी में पढ़िए)

While most of us talk about the screen’s resolution, colors, PPI, and type, we never consider the display refresh rate a priority. Well, that has now changed and high refresh rate screens are now in demand.

Before we list phones with 90Hz or 120Hz refresh rate displays, let’s talk about what’s refresh rate and how much of a practical impact it makes at the user end.

The term refresh rate, in layman terms, is the count of how many times the screen refreshes its image in one second. It is basically measured in Hz. At present, most smartphone displays have a 60Hz refresh rate, or in other words, even if you are viewing a static image, your display is redrawing the same picture or is pushing the same frame 60 times every second.

At times people tend to get confused between higher refresh rates and higher frame rates (Hz vs FPS). FPS is the count of how many frames are being pushed to the display every second. FPS is related to the content you run on the screen, which might be a video or a game.

So, ideally, if your video has been shot and packaged at 90 frames per second (FPS) and your display has a 90Hz refresh rate, your phone will be able to push all frames.

Not much content is available to take advantage of 90Hz, so most videos and games push only 60 frames per second. This is also why most high refresh rate phones are programmed to dial down to 60Hz refresh rate when you are watching videos.

If the touch refresh rate and the display refresh rate are both clocked at 60Hz, it means the tracking and refreshing coincide, and the animations are rendered one interval later.

However, say, if the touch refresh rate is 120Hz and the display refresh rate is 60Hz, animations will still be snappier and smoother, and your screen would still appear to be more responsive, but the overall experience won’t match the fluidity of having a 120Hz refresh rate screen.

Samsung recently announced its latest foldable devices – the Galaxy Z Fold 3 5G and Galaxy Z Flip 3 5G in India. Both these phones come with Samsung’s Dynamic AMOLED displays which not just fold but also manage to deliver a 120Hz refresh rate.

This display called Infinity Flex Display folds in half and you get a 6.2-inch screen on the surface. That cover panel is plenty big to use as a regular phone. Turn on the screen, you would be greeted by the OneUI 3.1 based on Android 11 with tailored software tweaks.

Samsung Galaxy S21 Ultra is the first Samsung phone to include 120Hz refresh rate support at 2K resolution. The Galaxy S21 and Galaxy S21+ support a 120Hz refresh rate but the display maxes out at Full HD+ resolution. The refresh rate on all of these phones is dynamic, which is to say it can vary between 10Hz and 120Hz depending on the display content.

OnePlus can be credited with making high refresh rate screens on phones mainstream. The OnePlus 9 Pro enjoys a 120Hz fluidity at QHD (2K) resolution. The 6.7-inch AMOLED display is HDR10+ compliant and is shielded by Gorilla Glass 5.

Vivo X70 Pro Plus has a dual-curved edge AMOLED screen that’s well-calibrated and refreshes at 120Hz. It is powered by Qualcomm Snapdragon 888+ chipset and has a gimbal camera that proved quite effective in improving lowlight photography.

Realme GT 5G has got a 6.43-inch sAMOLED screen with a 120Hz refresh rate and 360Hz touch sampling rate. The panel is FHD+ resolution as well with 100% DCI-P3 color coverage and 1000nits peak brightness.

The bezels surrounding the screen have been kept to the minimum endowing a 91.7% screen-to-body ratio. The left cornered punch-hole cutout also is unobtrusive. Rest, here under the display, you get a fingerprint reader and top Dragontail glass protection.

Oppo Find X3 Pro brandishes a 6.7″ AMOLED display with dual curved edges. The LTPO panel clocks a 120Hz refresh rate support. It is Quad HD+ in resolution, with 525PPI pixel density, up to 1300 nits brightness, end-to-end 10-bit color support, 97% NTSC/100% DCI-P3 color gamut, and Gorilla Glass 5 protection on top.

iQOO 7 (review) features a 6.62-inch FHD+ AMOLED panel with support for a 120Hz refresh rate and 300Hz touch sampling rate. This is also an HDR-certified panel with standards like HDR10/HDR10+. The contrasts are met by a claimed peak brightness of 1300Nits.

For media consumption, this display is DRM L1 rated for HD streaming on Netflix, Youtube, and Prime videos. And the presence of DC Dimming should relieve your eyes from the PWM flicker strain.

The Moto G60 (review) only has an LCD panel, but one that refreshes 120 times a second. It is 6.78 inches in size with FHD+ resolution and HDR10 colors and contrasts. Since G60 is a stock-ish Android phone, there are no heavy animations either. The display can get sufficiently bright too under the sun.

As of today, 90Hz and 120Hz refresh rate has become a mainstream feature. In fact, there are several mainstream phones that offer displays with a 144Hz refresh rate.

Creating an array of the best LCD Monitors for Stock Traders is one of the many ways you can make money on your PC. Unlike gaming rigs which require high-speed refresh rates and response times, you will only need clarity and a perfectly sized display to cater to your needs. This niche can involve a lot of different software at any given time, so your best bet is probably a multi-display machine.  You want a set up that allows you scan multiple markets at the same time, decreases eye fatigue, offers high resolution, maximizes speed and keeps costs down.  The setups below are more affordable and responsive than your standard Bloomberg terminal monitor.  Users of TradeStation, Thinkorswim, and eSignal will benefit from the expansive real estate of a multi-monitor setup.

The cheapest solution we can find and recommend is the VIVO Hex LCD Monitor Stand, which can hold up to six 24-inch monitors via their 75 x 75 or 100 x 100 VESA mounting holes. This mechanism is made of high-grade steel and aluminum for durability.

Each arm will provide -15 to +15 degrees of tilt, and 360 degrees of swivel and pivot, giving you absolute control over how you would want to position each screen to get the perfect view angle. You also won’t need to worry about messy wires, since the VIVO Hex LCD Monitor Stand also includes an integrated cable management system.

The Asus VC239H is one of the most globally popular IPS monitors around the world for its excellent value and build quality. Asus designed the VC239H with the infinity-edge concept they use on their high-end models, so you won’t see any bezels on the top and of the sides of the screen.

The IPS panel appears crisp and vibrant especially if you use the included sRGB mode in the OSD, which produces a Delta E result of only 1.80. You sacrifice a bit of contrast in this mode, but we can’t argue with correctly saturated images and accurate colors which are often associated with high-end monitors.

The Dell P43127Q is one of the most specialized monitors for stock trading because it is a multi-client display. The massive 43-inch screen with a 4K panel can split into four different sections with 1080p resolutions each, giving users a simulated quad monitor experience for unrivaled efficiency.

Another excellent behemoth is the Philips BDM4350UC, a 43-inch professional monitor with an IPS panel. This model almost looks like your 4K TV in the living room with thin bezels, making it look like a gorgeous centerpiece for your office or workspace. Just like the Del P4317Q above, this screen can also serve as a multi-client device. The 4K resolution of the big screen also enables you to open multiple apps and widgets simultaneously, ensuring your workflow is efficient.

The Philips BDM4350UC carries a high-quality IPS panel with eye-popping color and detail, plus our review unit did not display any severe backlight bleeding or poor uniformity, which is quite rare for big screens. This option is excellent for designing and movies, and we can’t imagine why it shouldn’t be included as one of the best monitors for stock trading.

The LG 34UC97 is an excellent ultra-wide monitor with an IPS panel with 99%  coverage of the sRGB gamut. This color-accurate wonder gently curves with a 3800mm radius giving its users a perceived wrapped-around feeling which can enhance immersion and focus. You can also split the screen into several configurations via LG’s Screen Split software according to your needs.

You can maximize the vast viewing space with the help of LG Screen Split 2.0, plus you can enjoy a bit of gaming with its 75Hz refresh rate which is complemented by AMD Freesync for image stability and tear-free enjoyment. The LG38UC99 is also big on features since it is equipped with a plethora of image-enhancing options and a multitude of connection ports which include the future-proof USB-C for charging and harnessing audio/video signals from a compatible device.

What does refresh rate mean, and how does it affect gaming? We explain 144Hz monitors and beyond, and why more hertz isn’t always better (but usually is).

For years, the refresh rate has been the go-to number for gamers when buying a monitor. But what exactly is refresh rate and how does it relate to other aspects of monitor technology, such as panel type and response time? Read on to find out.

The refresh rate of a monitor is the speed (rate) at which the monitor’s image changes (refreshes). The faster the refresh rate, the more times the image can update every second and the smoother the image will look. This number of changes per second is measured in hertz (Hz).

The generally accepted level of refresh rate that leads to a satisfying image depends on the application. Cinemas run at just 24Hz, while the old TV standards of PAL and NTSC ran at 50Hz and 60Hz respectively. A typical PC monitor will have a refresh rate of 60Hz, but the latest gaming displays can reach all the way to 240Hz.

The pursuit of faster refresh rates is crucial for gaming, since it allows the screen to keep up with the rapid movements of a player. For instance, a modern mouse can report its position up to 1000 times a second, while modern PCs can run competitive games such as Counter-Strike: Global Offensive or Overwatch at hundreds of frames per second. Having a monitor that can keep up with all that can potentially give a gamer that crucial split-second advantage.

However, there are diminishing returns. For a long time 144Hz was the de facto standard gaming monitor refresh rate (because it’s 6 x 24Hz) but now we’re seeing 240Hz panels. We’re yet to review such ultra-fast panels, but early verdicts suggest that only the most competitive of gamers will gain an advantage. This compares to the leap from 60Hz to anything over 100Hz, which even fairly casual gamers will notice.

Moreover, once you’ve reached such a level of refresh rate, other factors become more noticeable when it comes to trying to get the most clear image. Factors such as response time and motion blur.

Response time is the time it takes for a pixel to change from one colour to another. Generally measured in milliseconds (ms), it’s directly related to refresh rate in that a monitor can only really refresh its image quickly if the pixels can respond quick enough. A 16ms response time translates to a theoretical maximum of a 60Hz refresh rate 1s/60 = 16.6ms.

Response time is the reason that gaming monitors still use TN LCD panels with poor viewing angles, when most other monitors and LCD screens in phones, tablets and laptops have moved onto better technologies such as IPS and VA. TN can respond as quickly as 1ms, whereas the fastest IPS screens are around 4ms and most are 8ms or longer.

Meanwhile, response time is the big advantage that OLED displays have over LCD panel, and is the reason that many of us are so excited about them eventually being cheap enough to replace LCDs in computer monitors. LCDs work by physically moving tiny crystals embedded in the surface of the screen, and so are relatively slow to respond. OLED displays, on the other hand, are purely electronic, making them several orders of magnitude faster – a typical OLED panel has a response time of just 0.01ms.

One of the effects of having a slow refresh rate or response time is that an image can look blurred. This can happen for a couple of different reasons.

This was a particular problem with the AOC C3583FQ, for instance. It has a fast 160Hz refresh rate that initially, at least, means the image responds quickly. However, the VA LCD panel’s slow response time meant that it had very long, distracting trails that made the display feel nowhere near as responsive as typical TN gaming panels.

The other type of motion blur is eye-tracking motion blur. This is where your brain can perceive an image to be blurry because your eyes naturally track the movement of an image on-screen, but because the image is actually static – even just for a fraction of a second – your eyes end up blurring the image as they pan across it.

This can be reduced by having a faster refresh rate. However, of even more benefit is a technique known as black-frame insertion. This is where a completely blank image is inserted in between each frame, reducing the time it’s displayed for and masking the effect of your eyes tracking the movement. It effectively doubles the refresh rate, but without the need for any extra image information, which is why it works when watching fixed-refresh rate video on TVs too.

How this is achieved depends on the type of screen technology. OLED screens can just turn on and off, but with LCDs it is the backlight that’s turned on and off instead.

So are fast refresh rate gaming monitors worth it? Absolutely. If you play fast-paced, competitive games, the responsive feel of a 100Hz+ monitor with a sub 4ms response time is undeniable and can bring a real competitive advantage.

Be honest with yourself, though. If you don’t actually play competitive multi-player games – particularly FPS – then you’re better off prioritising image quality over refresh rate and response time. Indeed, that’s why the likes of the  Asus PG279Q and Acer XF270HU have proved so popular: they strike the perfect compromise between all these factors.

The refresh rate (or "vertical refresh rate", "vertical scan rate", terminology originating with the cathode ray tubes) is the number of times per second that a raster-based display device displays a new image. This is independent from frame rate, which describes how many images are stored or generated every second by the device driving the display.

On cathode ray tube (CRT) displays, higher refresh rates produce less flickering, thereby reducing eye strain. In other technologies such as liquid-crystal displays, the refresh rate affects only how often the image can potentially be updated.

Non-raster displays may not have a characteristic refresh rate. Vector displays, for instance, do not trace the entire screen, only the actual lines comprising the displayed image, so refresh speed may differ by the size and complexity of the image data.

Raster-scan CRTs by their nature must refresh the screen, since their phosphors will fade and the image will disappear quickly unless refreshed regularly.

In a CRT, the vertical scan rate is the number of times per second that the electron beam returns to the upper left corner of the screen to begin drawing a new frame.vertical blanking signal generated by the video controller, and is partially limited by the monitor"s maximum horizontal scan rate.

The refresh rate can be calculated from the horizontal scan rate by dividing the scanning frequency by the number of horizontal lines, plus some amount of time to allow for the beam to return to the top. By convention, this is a 1.05x multiplier.1280 × 1024 results in a refresh rate of 96,000 ÷ (1024 × 1.05) ≈ 89 Hz (rounded down).

CRT refresh rates have historically been an important factor in videogame programming. In early videogame systems, the only time available for computation was during the vertical blanking interval, during which the beam is returning to the top corner of the screen and no image is being drawn.screen tearing.

Unlike CRTs, where the image will fade unless refreshed, the pixels of liquid-crystal displays retain their state for as long as power is provided, and consequently there is no intrinsic flicker regardless of refresh rate. However, refresh rate still determines the highest frame rate that can be displayed, and despite there being no actual blanking of the screen, the vertical blanking interval is still a period in each refresh cycle when the screen is not being updated, during which the image data in the host system"s frame buffer can be updated.

On smaller CRT monitors (up to about 15 in or 38 cm), few people notice any discomfort between 60–72 Hz. On larger CRT monitors (17 in or 43 cm or larger), most people experience mild discomfort unless the refresh is set to 72 Hz or higher. A rate of 100 Hz is comfortable at almost any size. However, this does not apply to LCD monitors. The closest equivalent to a refresh rate on an LCD monitor is its frame rate, which is often locked at 60 fps. But this is rarely a problem, because the only part of an LCD monitor that could produce CRT-like flicker—its backlight—typically operates at around a minimum of 200 Hz.

Different operating systems set the default refresh rate differently. Microsoft Windows 95 and Windows 98 (First and Second Editions) set the refresh rate to the highest rate that they believe the display supports. Windows NT-based operating systems, such as Windows 2000 and its descendants Windows XP, Windows Vista and Windows 7, set the default refresh rate to a conservative rate, usually 60 Hz. Some fullscreen applications, including many games, now allow the user to reconfigure the refresh rate before entering fullscreen mode, but most default to a conservative resolution and refresh rate and let you increase the settings in the options.

Old monitors could be damaged if a user set the video card to a refresh rate higher than the highest rate supported by the monitor. Some models of monitors display a notice that the video signal uses an unsupported refresh rate.

Some LCDs support adapting their refresh rate to the current frame rate delivered by the graphics card. Two technologies that allow this are FreeSync and G-Sync.

When LCD shutter glasses are used for stereo 3D displays, the effective refresh rate is halved, because each eye needs a separate picture. For this reason, it is usually recommended to use a display capable of at least 120 Hz, because divided in half this rate is again 60 Hz. Higher refresh rates result in greater image stability, for example 72 Hz non-stereo is 144 Hz stereo, and 90 Hz non-stereo is 180 Hz stereo. Most low-end computer graphics cards and monitors cannot handle these high refresh rates, especially at higher resolutions.

For LCD monitors the pixel brightness changes are much slower than CRT or plasma phosphors. Typically LCD pixel brightness changes are faster when voltage is applied than when voltage is removed, resulting in an asymmetric pixel response time. With 3D shutter glasses this can result in a blurry smearing of the display and poor depth perception, due to the previous image frame not fading to black fast enough as the next frame is drawn.

This gif animation shows a rudimentary comparison of how motion varies with 4Hz, 12Hz, and 24Hz refresh rates. Entire sequence has a frame rate of 24Hz.

The development of televisions in the 1930s was determined by a number of technical limitations. The AC power line frequency was used for the vertical refresh rate for two reasons. The first reason was that the television"s vacuum tube was susceptible to interference from the unit"s power supply, including residual ripple. This could cause drifting horizontal bars (hum bars). Using the same frequency reduced this, and made interference static on the screen and therefore less obtrusive. The second reason was that television studios would use AC lamps, filming at a different frequency would cause strobing.NTSC color coding) and 50 Hz System B/G (almost always used with PAL or SECAM color coding). This accident of chance gave European sets higher resolution, in exchange for lower frame-rates. Compare System M (704 × 480 at 30i) and System B/G (704 × 576 at 25i). However, the lower refresh rate of 50 Hz introduces more flicker, so sets that use digital technology to double the refresh rate to 100 Hz are now very popular. (see Broadcast television systems)

Similar to some computer monitors and some DVDs, analog television systems use interlace, which decreases the apparent flicker by painting first the odd lines and then the even lines (these are known as fields). This doubles the refresh rate, compared to a progressive scan image at the same frame rate. This works perfectly for video cameras, where each field results from a separate exposure – the effective frame rate doubles, there are now 50 rather than 25 exposures per second. The dynamics of a CRT are ideally suited to this approach, fast scenes will benefit from the 50 Hz refresh, the earlier field will have largely decayed away when the new field is written, and static images will benefit from improved resolution as both fields will be integrated by the eye. Modern CRT-based televisions may be made flicker-free in the form of 100 Hz technology.

Many high-end LCD televisions now have a 120 or 240 Hz (current and former NTSC countries) or 100 or 200 Hz (PAL/SECAM countries) refresh rate. The rate of 120 was chosen as the least common multiple of 24 fps (cinema) and 30 fps (NTSC TV), and allows for less distortion when movies are viewed due to the elimination of telecine (3:2 pulldown). For PAL at 25 fps, 100 or 200 Hz is used as a fractional compromise of the least common multiple of 600 (24 × 25). These higher refresh rates are most effective from a 24p-source video output (e.g. Blu-ray Disc), and/or scenes of fast motion.

As movies are usually filmed at a rate of 24 frames per second, while television sets operate at different rates, some conversion is necessary. Different techniques exist to give the viewer an optimal experience.

The combination of content production, playback device, and display device processing may also give artifacts that are unnecessary. A display device producing a fixed 60 fps rate cannot display a 24 fps movie at an even, judder-free rate. Usually, a 3:2 pulldown is used, giving a slight uneven movement.

While common multisync CRT computer monitors have been capable of running at even multiples of 24 Hz since the early 1990s, recent "120 Hz" LCDs have been produced for the purpose of having smoother, more fluid motion, depending upon the source material, and any subsequent processing done to the signal. In the case of material shot on video, improvements in smoothness just from having a higher refresh rate may be barely noticeable.

In the case of filmed material, as 120 is an even multiple of 24, it is possible to present a 24 fps sequence without judder on a well-designed 120 Hz display (i.e., so-called 5-5 pulldown). If the 120 Hz rate is produced by frame-doubling a 60 fps 3:2 pulldown signal, the uneven motion could still be visible (i.e., so-called 6-4 pulldown).

Tablet incell application , using integrated chips cascade，can achieve WQXGA(portrait)/120HZ(active pen supported),with high resolution/high refresh rate;

Notebook incell application can be divided into two types: integrated MSO scheme and separate scheme. The separated scheme is composed of TCON + MCU / source + AFE, supporting WQXGA(landscape)/120Hz,WQHD(landscape)/120Hz etc. Achieving high resolution and high refresh rate, and taking into account the narrow board design.

High refresh rates and motion smoothing are just the beginning. Numerous other anti-blurring technologies, including TVs. Learning the pros and cons of each should help you get a TV image you"re happier with. Or at least, happier than before I ruined TVs for you.

Motion blur is when anything on-screen blurs, becoming fuzzy and less distinct, when it moves. This can be a single object, like a ball or car, or the entire screen, as when the camera pans across a landscape.

In the early days of flat TVs and displays, the culprit was often the slow speed of the liquid crystal elements that create an image on LCD TV. These days most LCDs are able to change their states fast enough that motion blur is caused by something else: "sample and hold."

LCDs -- and modern OLED TVs -- configure their pixels to show an image and then hold that image until the screen refreshes. With most TVs this means that for a full one-sixtieth of a second, the image is stationary on screen. Then the screen refreshes and a new image is held there for another one-sixtieth of a second. Some TVs have faster refresh rates, and in some countries TV refresh every one-fiftieth of a second, but the process is the same.

Higher refresh rates don"t, in and of themselves, fix the motion blur problem. The images are still being held, and if you just double the number of still images to fit 60 into 120 you haven"t really changed anything. You need something to change to, and that"s when things get interesting.

The processing in modern TVs can determine, with a surprising amount of accuracy, what happens in between two frames of video. For instance, if a ball is on the left side of the screen in frame A, and the right side of the screen in frame B, the TV could safely assume that if there was a frame between A and B, the ball would be in the center of the screen.

Nearly every movie and nonreality TV show is recorded at a frame rate of 24 frames per second. This goes back to when nearly everything was shot on film. Though the early days had a variety of frame rates, Hollywood settled on 24, and it has been that way for decades.

Interpolating frames increases the apparent frame rate, so 24fps content no longer looks like 24fps content, because when shown on these TVs, it isn"t 24fps content. The interpolation effectively increases the frame rate so 24fps content looks more like 30 or 60fps. More like sports, reality TV or the content that gives this effect its name: the soap opera effect. That"s where our friend Tom comes in.I’m taking a quick break from filming to tell you the best way to watch Mission: Impossible Fallout (or any movie you love) at home. pic.twitter.com/oW2eTm1IUA— Tom Cruise (@TomCruise) December 4, 2018

Fortunately, most TVs not only give you the option to turn it off, but let you adjust how intense the frame interpolation is. So instead of a created frame that"s halfway between A and B, maybe it"s only slightly different from A or slightly different than B. If your TV has this adjustment, it"s worth playing with to see if you can find a setting that reduces motion blur enough that you"re not bothered by it, but isn"t as intrusive as the more intense frame interpolation modes are. Some even separate out the processing to reduce the judder caused by

This, too, has its history in cinema. Though filmed at 24 frames per second, movies weren"t shown at 24 frames per second. This was slow enough that some people saw the flicker. Instead, each film frame was shown twice, with a shutter blocking the light in between. Some cinemas went even further, showing each film frame three times. This blanking was a simple way to give some of the "performance" of a higher frame rate without the cost of additional film stock.

When the TV spends half of its time showing a black screen, its light output drops. In many cases this trade-off is acceptable, as modern TVs are exceptionally bright. In other cases, not as much. I have a front projector, for example, and the BFI mode can make the image look very dim.

Like frame interpolation, black frame insertion has different implementations. Rarely would a TV with a BFI mode show a black frame for the same length of time it shows a real frame. It"s also not necessarily a "frame" at all. All LCDs create light with a

The only two flat-panel TV technologies available today, LCD and OLED, both suffer from motion blur. However, there is still one display technology that doesn"t:

Currently only found in front projectors, Digital Light Processing uses millions of tiny mirrors that rapidly flash on and off to build an image on a screen.

Catch details in motion and enjoy fluid gameplay with ZOWIE 144Hz refresh rate monitor. It also makes your control smooth and precise in game, such as FPS and MOBA games.

Concentration is a key factor in e-Sports. The XL-series LCD frame was specially designed to reduce light reflection from the screen, helping to keep your focus on the game.

The Hisense U8H matches the excellent brightness and color performance of much pricier LCD TVs, and its Google TV smart platform is a welcome addition. But it’s available in only three screen sizes.

The Hisense U8H is the best LCD/LED TV for most people because it delivers the performance of a much pricier TV yet starts at under $1,000, for the smallest (55-inch) screen size. This TV utilizes quantum dots, a full-array backlight with mini-LEDs, and a 120 Hz refresh rate to deliver a great-looking 4K HDR image. It’s compatible with every major HDR format. And it’s equipped with two full-bandwidth HDMI 2.1 inputs to support 4K 120 Hz gaming from the newest Xbox and PlayStation consoles. Add in the intuitive, fully featured Google TV smart-TV platform, and the U8H’s price-to-performance ratio is of inarguable value.

That’s not to say the U8H has pixel-precise light control—it’s not an OLED TV, after all—but it does a terrific job most of the time. In fact, in our tests, the U8H bested last year’s upgrade pick, the Samsung QN90A, in certain scenarios: The intro to Guillermo del Toro’s Cabinet of Curiosities on Netflix features the filmmaker against a pitch-black backdrop. Though last year’s QN90A failed to maintain perfect control over dimming elements during this scene (the black backdrop brightened distractingly once a sufficient amount of brighter content appeared on screen), the U8H did not. (For the record, the newer QN90B also passed this test.) The U8H’s mini-LEDs also help the screen look uniformly bright: Although the U8H is still not as good as an OLED TV in this respect, it shows very little indication of being a backlight-driven display, even during tricky scenes with large swaths of dim lighting.

And thanks to Hisense’s inclusion of Filmmaker Mode, it’s easy to rein in the U8H’s brightness abilities for a more-subdued and filmic experience in a darker room. Our measurements revealed that this mode has a very accurate white balance, mostly accurate colors (green is a bit oversaturated, but not egregiously so), and a perfect “dark room” gamma (which controls how quickly the video signal transitions from dark to light). Additionally, the TV’s 120 Hz refresh rate means it can play Blu-ray discs at 24 fps without the judder that’s usually present on TVs with 60 Hz refresh rates.

The TV’s higher refresh rate also reduces motion blur in faster-moving sports and allows for smoother, more stable motion in games. Two of the four HDMI inputs support 4K gaming at 120 Hz. The U8H measured low input lag while playing in 4K resolution, and Hisense’s helpful GameZone setting in the picture menu allowed me to confirm the presence of 120 Hz playback and variable refresh rate during games.

The onboard Google TV smart platform is another feather in this TV’s cap. As usual, however, it will be much more satisfying to use if you have a Google account and already take advantage of Google’s connected services, like Photos. The experience of navigating the TV’s smart features—scanning QR codes to sign into apps, using the onscreen keyboard, and browsing your Google Photos to set a photo as a screensaver—was very satisfying in terms of responsiveness and speed. Powering on the TV and booting into an app took just seconds. The included Bluetooth remote is also equipped with a handy “Hey Google” button, allowing you to pull up Google’s assistant and use voice commands to search for content or set a reminder. If you have multiple users with their own Google accounts, you can designate separate profiles (attached to a Gmail account) so that each user can customize the experience to their liking, as well as access their own Google Drive or Photos. While some reviewers have reported instances of momentary freezing while using the U8H’s platform, I didn’t personally experience any instances of slowdown that were egregiously worse than with any other smart-TV platform.

In terms of design, the Hisense U8H is not as svelte as our upgrade pick, but it’s plenty sturdy and doesn’t look or feel cheap. Two narrow, metal feet jut out from beneath the panel and steadily hold the TV. They can be attached in two separate spots, either closer in toward the middle of the panel or out toward the edges, to account for different-size TV stands. The feet are also equipped with cable organization clasps—a nice touch for keeping your TV stand free of cable clutter. Though the TV is primarily plastic, its bezels are lined with metal strips, providing a bit more durability in the long run. I moved it around my home, and it was no worse for wear, but we’ll know more after doing some long-term testing.

The Hisense U8H has some difficulties with banding, or areas of uneven gradation, where transitions that should appear smooth instead look like “bands” of color (sometimes also called posterization). Like many current 4K HDR TVs, the U8H uses an 8-bit panel rather than a 10-bit panel, which affects the color decoding and color presentation process. This is usually relevant only with HDR video and games. When playing games on the PlayStation 5 and Xbox Series X, I saw a few instances where the content wasn’t rendered correctly and displayed ugly splotches of color on the screen. However, this almost always occurred during static screens (such as a pause menu or loading screen); I rarely spotted it during actual gameplay. Hisense has stated that it would address the problem in a future firmware update, but at the time of writing it was still present. This is a flaw that may give dedicated gamers pause, but we don’t consider it to be a dealbreaker for most people.

Although the UH8 TV has four HDMI inputs, only two of them are fully HDMI 2.1–compatible. And one of those is designated as the eARC input (intended as an audio connection for a soundbar or AV receiver connection). So if you’re pairing an external audio system with the U8H, you may have only one input remaining that can support HDMI 2.1 features like 4K 120 Hz playback, variable refresh rate, and auto game mode; this could be a dealbreaker if you own more than one current-gen gaming console. If you’re in that boat, you may want to splash out some extra dough for our upgrade pick. Additionally, folks using pre-HDMI source devices—like the five-cable composite connector with green, red, blue, and red/white audio inputs—should be aware that this TV requires an adapter to allow those devices to connect, and an adapter is not included in the box.

Finally, like most TVs that use vertical alignment (VA) LCD panels, the U8H has a limited horizontal viewing angle, which may be a bit annoying if you’re hoping to entertain a large crowd. Our upgrade pick uses a special wide-angle technology to address this.

If you’re watching in a darker room and want the most accurate picture you can get—preserving the director’s intent—select the U8H’s Filmmaker Mode as your picture mode. In a brighter room, we recommend the Theater Day picture mode. In either case, you should go into the backlight settings, disable the automatic light sensor, and set the backlight to your personal preference. This is true whether you’re watching SDR or HDR content.