tft lcd color monitor reviews free sample

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If you’re looking for a less expensive 24-inch monitor, we recommend the Asus VA24DCP, typically priced around $170. It also has a USB-C connection that can charge most laptops, but it lacks features like a fully adjustable stand, and it doesn’t have a USB hub or the ProArt’s great color accuracy.

The USB-C port on the Asus ProArt PA247CV makes it a fantastic 24-inch 1080p IPS display to use alongside a notebook PC. The 65 watts of charging over USB-C means it will charge most laptops, and the sturdy, adjustable stand means you can use the monitor in a variety of configurations. It’s fairly color accurate out of the box, with great contrast and especially nice reproduction of white and grays, so you shouldn’t notice weird tinges of color when staring deeply into your blank Google Doc page. It also has a USB hub that can add four USB ports to your laptop.

For less than $175, the Asus VA24DCP is a capable 24-inch 1080p IPS display that has full USB-C charging at 65 watts. It’s a great basic monitor for those who want something to hook up to their laptop or PC to browse the internet and get some office work done, as its colors look good for day-to-day use, and it has better contrast than many higher-cost monitors. For $100 less than our top pick, you’re giving up a better, more adjustable stand, a USB hub, and some color accuracy, but if those aren’t important to you, this is a nice monitor for a great price.

The Dell UltraSharp U2421E is a 24-inch monitor with a 1920×1200-pixel resolution, rather than the typical 1920×1080. These extra 120 vertical pixels mean a little less scrolling in large documents or spreadsheets, and more room for your apps and games without taking up more space on a desk. The U2421E comes with a higher price than our 1080p picks, but it has incredibly accurate colors, a USB-C port with 90W of charging for high-powered ultrabooks and the MacBooks Pro, and a USB hub that includes an additional USB-C port.

The Datacolor SpyderX is a breakthrough product, but not for the usual reasons. Instead of creating the absolute best monitor color calibration tool, Datacolor built the Toyota Corolla of colorimeters: an affordable solution that is super simple to use and delivers results that are good enough for most users.

The Datacolor SpyderX is an excellent monitor calibration tool for the price. A new lens design helps the unit to focus more light on the color sensor, improving accuracy on low light readings like dark tones.

Absolutely, yes! Ideally, we all should work on calibrated displays that allow us to evaluate our work according to a universal standard. To base all your decisions regarding color on an unknown variable is the same as drawing on paper with the lights turned off.

The monitor is the main place of interaction between creative professional and digital work. An uncalibrated screen is an unknown variable. Your photographs, illustrations or designs can vary wildly in color from one display to another, and even more during printing, where any misstep can represent a big waste of money. Calibrating your monitor ensures that what you see is consistent from day to day and also follows a known universal standard.

The same logic applies not only to photography but also to all fields that require consistent color — for example, web, graphic and product design. If you care about colors in your work, you need to care about the tools you use to interact with them.

Arguably, purchasing a monitor calibration tool is a worthwhile investment even for general computer usage. Think of it as a relatively inexpensive monitor upgrade that can extract the most quality from your existing display, or get similar color response between two different monitors.

Based on my tests, modern monitors drift very little over time, so it’s safe to rent a colorimeter or maybe even share the cost of one between a group of friends. For less demanding work, calibrating a modern good quality IPS monitor twice a year is perfectly acceptable. My 30” wide gamut Dell display, for example, changed less than 3 dE on the worst color patch over a span of 3 years, which is hardly visible. On average, the difference in 50 color patches as measured by DisplayCAL was negligible at less than 1 dE. I saw worse but still reasonable results when testing a MacBook Pro monitor over time.

Objectively, no. But it is more than enough for most users, including demanding use cases like display calibration for photographers or designers that need to deliver color accurate work to their clients.

The SpyderX Pro sits together with the X-Rite i1Display Studio on the sweet spot for the monitor calibration tool market: around USD 150. The alternatives below that range are simply not worth it and have to make too many compromises in terms of accuracy and longevity to achieve a lower price.

Above that range, the i1Display Pro is an excellent contender for higher end uses, but doesn’t offer necessarily better calibration quality, unless your particular monitor supports true hardware calibration. More on it below.

The new lens design helps the unit to focus more light on the color sensor, improving accuracy on low light readings like dark tones. That was my #1 complaint with the Spyder5.

So, what"s the obsession with saving a couple of minutes? Well, it makes little sense for me. I"m a color geek. I enjoy spending half an hour calibrating each of my monitors. But, from an ease of use perspective, faster results are less frustrating and help to reduce the barrier of entry to convince users to calibrate their displays. "It"ll take just a couple of minutes" is a great selling point.

In my own tests, the SpyderX produced color profiles that were virtually indistinguishable from the X-Rite products, either using their respective bundled software or the free DisplayCAL software, which supports most devices on the market and offers more advanced calibration capabilities.

The only area I could see a small difference when switching between profiles was on the most extreme grayscale dark tones below L 12 on the LAB color space.

My main display is an old Dell 30" wide gamut LCD and its main shortcoming is grayscale banding caused by a limited 8 bit LUT. For that display, the SpyderX profile showed a little more banding on the extreme dark tones. On the other monitors tested, a MacBook Pro and a Philips 4K IPS LCD with 109% sRGB gamut, the difference between devices was even closer and I wouldn"t be able to pick which is which on a blind test.

But, if you"re looking for the upmost raw performance, the X-Rite devices still have an edge mainly in terms of low light performance. This is when I"ll pass the mic to the people that specialize not on using their monitor calibrators like myself, but on building the actual tools that make it all work.

When it comes to color management systems, Graeme Gill – author of the amazing open source Argyll CMS library – is the person to listen to. In summary, he found the SpyderX to be a good and cheap device, with limitations in terms of low light performance.

Compared to the Pro version, the more expensive Datacolor SpyderX Elite can also calibrate digital projectors and offers additional tools to check the quality of your display, more advanced calibration targets for video standards and tools to match multiple displays in a studio environment. It can also calibrate digital projectors.

Most users calibrating their monitors for photography, illustration, print design or even general computer usage should be covered by the standard calibration presets offered on the Pro model.

The most common calibration target for those use cases is 6500K white point color temperature, 2.2 gamma and a luminance value from 90 cd/m2 to 120 cd/m2, depending on how bright is your room.

Users that require special calibration targets can always switch to DisplayCAL, a free software that is compatible with multiple colorimeter models and offers almost endless calibration options. That’s what I use on all of my devices, including the i1Display Pro that is my daily driver since 2012.

The i1Display Studio has a small edge over the Datacolor SpyderX Pro in terms of raw performance, specially in deep dark tones. If both units cost the same price on your local market, I"d go for the i1, unless calibration speed is important for your workflow. In that case, the SpyderX is much faster: less than 2 minutes vs. a little over 5 minutes for the i1.

That said, my pick would be the i1 Display Studio in terms of raw hardware capability. It is basically the same highly regarded sensor as the i1 Display Pro version, but with a firmware that limits it to a slower calibration speed. Hardly a dealbreaker, unless you need to calibrate multiple monitors per day.

In terms of longevity, Datacolor historically supports their devices for a longer time and usually delivers more stable software. The X-Rite model has an advantage here, though, for using external software-based matrix corrections to deal with different display backlight technologies, while the SpyderX has those corrections baked in firmware. What this means in practice is that the i1 can be more easily upgraded in the future as new display technologies emerge.

Tip: The i1Display Studio is essentially a rebranding of the previous Colormunki Display product. Both devices share the same hardware, same measurement performance and differ only on cosmetic changes. This may be a good time to buy a discontinued ColorMunki Display if you manage to get it for a great price or used.

The Datacolor SpyderX colorimeter is a small USB device that can precisely measure the color response of your computer screen. By comparing the actual displayed response of known color values, it creates a color profile that is used by the operating system and color managed applications to show correct colors. This process transforms your monitor from an unknown variable into a standard reference and can greatly improve your screen’s image quality by improving tonal response and shadow detail.

The resulting color profile is used by your operating system and any color managed program to adjust its output, making sure that what you see is as similar as possible to other displays, given their intrinsic differences.

These profiles are also used to match colors between other color managed devices. For example, if you have custom color profiles for your display and photo printer, Adobe Lightroom can understand their differences and match their output as closely as possible, or simulate the printer output on your screen.

Before you begin, the first order of business is to verify all your monitor hardware settings and make sure to select the most appropriate initial state for calibration. This means disabling any advanced image processing – features like game mode, enhanced contrast, dynamic backlight, etc – and getting the white point color temperature and gamma curve as close as possible to your desired target, usually 6500K and 2.2 gamma.

If your monitor has adjustable controls for each RGB color channel, turn on the option “Show RGB Sliders option in Identify Controls screen” in the Advanced Settings section. If not, look for preset color temperatures and set it to the closest value available to the desired white point.

Make sure to also check the video card control panel to make sure there’s nothing that could interfere with color output. For example, reduced RGB range or color calibration settings. Our goal is to keep the image pipeline absolutely neutral and make sure nothing interferes with the calibration / characterization process.

Before beginning, let the display to warm up for 30 minutes. Also disable the screen saver and monitor power settings to avoid disruption during the process.

The SpyderX uses a lens to focus light on the sensor. This helps minimize any environmental interference. For example, glare from nearby lights. In any case, it’s a good idea to avoid an overly bright room and any direct light shining on the calibrator while it works. Also make sure the unit sits flush on your screen. I usually tilt my monitor backwards so the colorimeter weight helps it sit tight on the display surface.

SpyderX offers ambient light monitoring and compensation, but I feel this functionality makes more harm than good. In my experience, it’s pretty easy to get incorrect results depending on the colorimeter positioning in relation to the room lights. If you’re doing any work where color accuracy matters, the best approach is to control room lighting to make it consistent throughout the day and within reasonable brightness to minimize visual interference, not the other way around.

A quick Google search will tell you the correct backlight type for your display. In a nutshell, GB LED displays are pretty rare, old displays are usually CCFL, 2015 and newer Apple iMacs and MacBooks are Wide LED and generic modern laptop or desktop monitors are Standard LED.

Since the SpyderX is so fast, a good practice is to perform an initial test calibration to make sure all display settings are correct, adjust hardware brightness and color temperature on the monitor on screen controls. This is helpful to make sure all settings are as close as possible to the final target.

The goal here is to make the color profile do as little work as possible. The more work the profile and video card LUT do, bigger is the risk of getting banding or harsh tonal transitions, akin to a strong color curve in Photoshop, for example. That"s one of the main selling points of better quality, factory calibrated monitors: they are close to a good standard and need less work to be calibrated.

It"s always a good idea to open the monitor profile and inspect the calibration curves to catch any obvious problems. What we want to see is a reasonably smooth set of lines from dark to light.

Make sure the newly generated color profile is installed on the operating system control panel. Most programs will read it from the OS and don"t need individual configuration.

Most cheap displays use TN displays that are often 6-bit internally, which leads to severe color banding, especially when calibrated to anything outside their native white point. To make matters worse, TN displays are usually very blue, meaning they have a hardware white point over 7500K.

The final nail in the coffin is that they shift colors depending on the viewing angle. Displays with VA panels are much better than TN, but also suffer from color changes depending on the viewing angle.

While we tend to use both terms interchangeably, true monitor calibration means being able to change the hardware response directly within the monitor.

Profiling means characterizing how a particular device reproduces colors and a color profile can be used to compensate and effectively calibrate a display by altering color response at the graphics card level.

Both are not mutually exclusive. A factory calibrated display still requires a colorimeter to create a color profile characterizing that particular unit response. This color profile is required by the operating system and color managed apps so they can understand how the hardware, the monitor itself, reproduces color.

If your work budget justifies a bigger invest in color management, I"d opt for the i1Display Pro, which costs about USD 90 more than a SpyderX Pro. As mentioned above, it"s a better hardware in terms of low light measurement and I"ve been using mine for the past 8 years. That difference in price feels smaller when diluted over time or in front of high budget work.

True HDR monitors with very high peak brightness require special devices for calibration. As far as I know, there"s only one reasonably priced device on the market capable of calibrating those devices: the recently launched X-Rite i1Display Pro Plus colorimeter. This special Plus version of the familiar i1Display Pro colorimeter can handle brighter displays up to 2000 cd/m2, including the Apple Pro Display XDR.

It provides much more advanced and flexible options than the bundled software and can be used in a variety of use cases from the most common calibration targets to complex video 3D LUTs or calibration targets specific for video and color grading. The possibilities are almost endless.

It"s also a more complicated and less user friendly software for less technical users, while the Datacolor bundled software uses a step-by-step wizard that hides complex decisions in the name of ease of use.

The Datacolor SpyderX is an excellent device that does its job without much fuss. What more could we ask for? I make a point of only writing about products that I personally use and recommend. The SpyderX Pro is an easy pick.

While most people often associate Dell monitors with office use, they also have a brand of gaming monitors known as Alienware. These monitors focus solely on gaming with higher refresh rates and fewer office features than their regular Dell lineup. If you"re looking for the best Dell gaming monitor, the Dell Alienware AW3423DW is an excellent option with stunning picture quality. Like most Dell monitors, it"s hard to find with retailers, but you can easily get it through Dell"s website. It"s different from the Dell U2723QE because it has an ultrawide display with a 21:9 aspect ratio and 3440x1440 resolution. The wider screen lets you see more of your game at once, which is great for atmospheric or FPS games.

It features new QD-OLED technology that allows it to display perfect blacks in dark rooms while making colors look vivid and highlights pop for a satisfying HDR experience. However, this monitor isn"t perfect as the black levels raise in bright rooms, and there are some issues with color fringing, so if that bothers you or you don"t like the ultrawide format, there are other Alienware monitors you can get. The Dell Alienware AW2523HF is great for esports gamers thanks to its 360Hz refresh rate, while the Dell Alienware AW2721D has native G-SYNC support like the AW3423DW but with a standard 16:9 aspect ratio.

Over time, the image quality on your computer monitor can start to look a little lackluster or even too bright. Before you consider upgrading your entire system or getting a new monitor, there might be a much simpler, quicker, and economical solution — calibrate your monitor.

You could take your monitor to a professional to have it done, but doing it yourself is relatively quick and hassle-free and will greatly improve image quality. Manufacturers keep pumping out displays with new technologies like 4K UHD resolution, high dynamic range (HDR), and curved monitors, providing a veritable feast for the eyes — but only if they are properly calibrated.

Step 3: Make sure you’re calibrating in a room with moderate ambient lighting. The room doesn’t need to be pitch black, but you don’t want the sharp glares and color casts resulting from direct light.

Step 4: Familiarize yourself with your monitor’s display controls. They may be located on the monitor itself, on the keyboard, or within the operating system control panel.

Both MacOS and Windows have built-in calibration tools to help guide you step-by-step through the process, which is particularly helpful if you are new to monitor calibration. These free tools should be the first stop if you’re merely a casual image junkie or working on a tight budget. Keep in mind that the adjustments will be limited by the display type and model, though.

The assorted terms — gamma, white point, etc. — may seem a bit daunting at first glance, but each utility provides a relatively simple explanation of what they all mean. Realistically, you don’t need to know the ins and outs of the jargon to calibrate your monitor.

In older versions of Windows, you can find the Color Calibration utility in the Display section of the Control Panel, which is listed under Appearance and Personalization.

Step 2: Now that you are in the calibration tool, follow the on-screen instructions to choose your display’s gamma, brightness, contrast, and color balance settings.

Step 3: Once the calibration wizard is complete, make sure to choose the Current calibration, or return to the previous calibration if you are unsatisfied with the results. The new calibration will be stored as an .ics file, or color calibration file, and will show up as a new International Color Consortium (ICC) Profile in the Color Management settings app.

Step 4: The easiest way to open this app is to type "color management" in the search box and choose the first result. Once it’s open, you can select your monitor from the device list and see which ICC Profiles are available.

Step 1: In MacOS, the Display Calibrator Assistant is located in the system preferences under the Displays tab, in the Color section. If you are having trouble finding it, try entering calibrate in Spotlight to scan through your computer’s various folders and files. The results should show an option to open the utility in the System Preferences panel.

Color adjustments: White point is a given, but Apple will try to detect your display and offer a number of other color calibrations at this point … or it may skip the rest of the adjustment options entirely. Native Apple displays may be more likely to have fewer color calibrations at this point (because Apple already calibrated them).

Step 3: This will create a new color profile for your display. If you couldn’t make the adjustments that you wanted to, then select this new profile and choose Open Profile. This will open a new window with all the tags associated with the color profile and their descriptions.

Step 4: You can choose each tag to see more information about them. Some tags will just be basic color data, but other tags can be altered to change specific color factors for the display.

Step 5: If you have a native display, look for the Apple display native information tag as a good place to start. As you can see, this can quickly become technical, so you will need to know your color data (phosphor values, response curves, etc.) to make accurate changes with this method.

There are a handful of web-based calibration tools that help you manually adjust your monitor settings. They can provide more precise, or more customized, calibration than the built-in utilities.

W4zt Screen Color Test: This simple webpage provides you with several color gradients and grayscale color boxes you can use for quick comparisons, along with an easy gamma test you can run. It’s nice to have so many tests on one page, making this solution great for fast and dirty calibration so you can move on.

The Lagom LCD Monitor Test Pages: Handy for both online and offline use, the Lagom LCD Monitor Test Pages not only allow you to adjust various things such as contrast and response time, but also allow you to download the images as a 120KB zip file, so you can check any monitor in-store that you are thinking about purchasing.

Calibrize 2.0: If you want a great tool that goes a little more in-depth than native calibration options, we suggest downloading Calibrize 2.0. It’s an excellent free wizard that carefully walks you through well-explained steps to help you calibrate color, grayscale, gamma, and similar settings on your computer.

While they’re better than a more temporary solution, built-in calibration utilities still have one major flaw: You. Since they rely on your specific color perception, what looks great to you might look thoroughly off to a friend.

The best way to avoid this problem and ensure that you calibrate your monitor correctly is by purchasing a calibrating device. You’ll need to spend a decent amount of money for the best control and precision. Still, there are affordable alternatives to help you achieve consistent color across all of your monitors.

If you’re looking for a calibration tool, we recommend either the X-Rite ColorMunki Smile ($99) or the Spyder5Elite ($200). Both devices boast a full-spectrum, seven-color sensor that can accurately display a range of standard and wide-gamut displays. If you have a bigger budget, you can look for upscale calibrators that have even more advanced options.

* Rewards 3% back excludes taxes and shipping. Rewards are issued to your online Dell Rewards Account (available via your Dell.com My Account) typically within 30 business days after your order’s ship date. Rewards expire in 90 days (except where prohibited by law). “Current rewards balance” amount may not reflect the most recent transactions. Check Dell.com My Account for your most up-to-date reward balance. Total rewards earned may not exceed $2,000 within a 3-month period. Outlet purchases do not qualify for rewards. Expedited Delivery not available on certain TVs, monitors, batteries and adapters, and is available in Continental (except Alaska) U.S. only. Other exceptions apply. Not valid for resellers and/or online auctions. Offers and rewards subject to change without notice, not combinable with all other offers. See Dell.com/rewardsfaq. $50 in bonus rewards for Dell Rewards Members who open a new Dell Preferred Account (DPA), or Dell Business Credit (DBC) account on or after 8/10/2022. $50 bonus rewards typically issued within 30 business days after DPA or DBC open date.

*Expedited Delivery: * Expedited Delivery not available on certain TVs, monitors, batteries and adapters, and is available in Continental (except Alaska) U.S. only. Other exceptions apply. Not valid for resellers and/or online auctions. Offers subject to change, not combinable with all other offers. See Dell.com/rewardsfaq.

* Rewards 3% back excludes taxes and shipping. Rewards are issued to your online Dell Rewards Account (available via your Dell.com My Account) typically within 30 business days after your order’s ship date. Rewards expire in 90 days (except where prohibited by law). “Current rewards balance” amount may not reflect the most recent transactions. Check Dell.com My Account for your most up-to-date reward balance. Total rewards earned may not exceed $2,000 within a 3-month period. Outlet purchases do not qualify for rewards. Expedited Delivery not available on certain TVs, monitors, batteries and adapters, and is available in Continental (except Alaska) U.S. only. Other exceptions apply. Not valid for resellers and/or online auctions. Offers and rewards subject to change without notice, not combinable with all other offers. See Dell.com/rewardsfaq. $50 in bonus rewards for Dell Rewards Members who open a new Dell Preferred Account (DPA), or Dell Business Credit (DBC) account on or after 8/10/2022. $50 bonus rewards typically issued within 30 business days after DPA or DBC open date.

*Expedited Delivery: * Expedited Delivery not available on certain TVs, monitors, batteries and adapters, and is available in Continental (except Alaska) U.S. only. Other exceptions apply. Not valid for resellers and/or online auctions. Offers subject to change, not combinable with all other offers. See Dell.com/rewardsfaq.

A thin-film-transistor liquid-crystal display (TFT LCD) is a variant of a liquid-crystal display that uses thin-film-transistor technologyactive matrix LCD, in contrast to passive matrix LCDs or simple, direct-driven (i.e. with segments directly connected to electronics outside the LCD) LCDs with a few segments.

In February 1957, John Wallmark of RCA filed a patent for a thin film MOSFET. Paul K. Weimer, also of RCA implemented Wallmark"s ideas and developed the thin-film transistor (TFT) in 1962, a type of MOSFET distinct from the standard bulk MOSFET. It was made with thin films of cadmium selenide and cadmium sulfide. The idea of a TFT-based liquid-crystal display (LCD) was conceived by Bernard Lechner of RCA Laboratories in 1968. In 1971, Lechner, F. J. Marlowe, E. O. Nester and J. Tults demonstrated a 2-by-18 matrix display driven by a hybrid circuit using the dynamic scattering mode of LCDs.T. Peter Brody, J. A. Asars and G. D. Dixon at Westinghouse Research Laboratories developed a CdSe (cadmium selenide) TFT, which they used to demonstrate the first CdSe thin-film-transistor liquid-crystal display (TFT LCD).active-matrix liquid-crystal display (AM LCD) using CdSe TFTs in 1974, and then Brody coined the term "active matrix" in 1975.high-resolution and high-quality electronic visual display devices use TFT-based active matrix displays.

The liquid crystal displays used in calculators and other devices with similarly simple displays have direct-driven image elements, and therefore a voltage can be easily applied across just one segment of these types of displays without interfering with the other segments. This would be impractical for a large display, because it would have a large number of (color) picture elements (pixels), and thus it would require millions of connections, both top and bottom for each one of the three colors (red, green and blue) of every pixel. To avoid this issue, the pixels are addressed in rows and columns, reducing the connection count from millions down to thousands. The column and row wires attach to transistor switches, one for each pixel. The one-way current passing characteristic of the transistor prevents the charge that is being applied to each pixel from being drained between refreshes to a display"s image. Each pixel is a small capacitor with a layer of insulating liquid crystal sandwiched between transparent conductive ITO layers.

The circuit layout process of a TFT-LCD is very similar to that of semiconductor products. However, rather than fabricating the transistors from silicon, that is formed into a crystalline silicon wafer, they are made from a thin film of amorphous silicon that is deposited on a glass panel. The silicon layer for TFT-LCDs is typically deposited using the PECVD process.

Polycrystalline silicon is sometimes used in displays requiring higher TFT performance. Examples include small high-resolution displays such as those found in projectors or viewfinders. Amorphous silicon-based TFTs are by far the most common, due to their lower production cost, whereas polycrystalline silicon TFTs are more costly and much more difficult to produce.

The twisted nematic display is one of the oldest and frequently cheapest kind of LCD display technologies available. TN displays benefit from fast pixel response times and less smearing than other LCD display technology, but suffer from poor color reproduction and limited viewing angles, especially in the vertical direction. Colors will shift, potentially to the point of completely inverting, when viewed at an angle that is not perpendicular to the display. Modern, high end consumer products have developed methods to overcome the technology"s shortcomings, such as RTC (Response Time Compensation / Overdrive) technologies. Modern TN displays can look significantly better than older TN displays from decades earlier, but overall TN has inferior viewing angles and poor color in comparison to other technology.

Most TN panels can represent colors using only six bits per RGB channel, or 18 bit in total, and are unable to display the 16.7 million color shades (24-bit truecolor) that are available using 24-bit color. Instead, these panels display interpolated 24-bit color using a dithering method that combines adjacent pixels to simulate the desired shade. They can also use a form of temporal dithering called Frame Rate Control (FRC), which cycles between different shades with each new frame to simulate an intermediate shade. Such 18 bit panels with dithering are sometimes advertised as having "16.2 million colors". These color simulation methods are noticeable to many people and highly bothersome to some.gamut (often referred to as a percentage of the NTSC 1953 color gamut) are also due to backlighting technology. It is not uncommon for older displays to range from 10% to 26% of the NTSC color gamut, whereas other kind of displays, utilizing more complicated CCFL or LED phosphor formulations or RGB LED backlights, may extend past 100% of the NTSC color gamut, a difference quite perceivable by the human eye.

The transmittance of a pixel of an LCD panel typically does not change linearly with the applied voltage,sRGB standard for computer monitors requires a specific nonlinear dependence of the amount of emitted light as a function of the RGB value.

In-plane switching was developed by Hitachi Ltd. in 1996 to improve on the poor viewing angle and the poor color reproduction of TN panels at that time.

Initial iterations of IPS technology were characterised by slow response time and a low contrast ratio but later revisions have made marked improvements to these shortcomings. Because of its wide viewing angle and accurate color reproduction (with almost no off-angle color shift), IPS is widely employed in high-end monitors aimed at professional graphic artists, although with the recent fall in price it has been seen in the mainstream market as well. IPS technology was sold to Panasonic by Hitachi.

Most panels also support true 8-bit per channel color. These improvements came at the cost of a higher response time, initially about 50 ms. IPS panels were also extremely expensive.

It achieved pixel response which was fast for its time, wide viewing angles, and high contrast at the cost of brightness and color reproduction.Response Time Compensation) technologies.

Less expensive PVA panels often use dithering and FRC, whereas super-PVA (S-PVA) panels all use at least 8 bits per color component and do not use color simulation methods.BRAVIA LCD TVs offer 10-bit and xvYCC color support, for example, the Bravia X4500 series. S-PVA also offers fast response times using modern RTC technologies.

A technology developed by Samsung is Super PLS, which bears similarities to IPS panels, has wider viewing angles, better image quality, increased brightness, and lower production costs. PLS technology debuted in the PC display market with the release of the Samsung S27A850 and S24A850 monitors in September 2011.

TFT dual-transistor pixel or cell technology is a reflective-display technology for use in very-low-power-consumption applications such as electronic shelf labels (ESL), digital watches, or metering. DTP involves adding a secondary transistor gate in the single TFT cell to maintain the display of a pixel during a period of 1s without loss of image or without degrading the TFT transistors over time. By slowing the refresh rate of the standard frequency from 60 Hz to 1 Hz, DTP claims to increase the power efficiency by multiple orders of magnitude.

Due to the very high cost of building TFT factories, there are few major OEM panel vendors for large display panels. The glass panel suppliers are as follows:

External consumer display devices like a TFT LCD feature one or more analog VGA, DVI, HDMI, or DisplayPort interface, with many featuring a selection of these interfaces. Inside external display devices there is a controller board that will convert the video signal using color mapping and image scaling usually employing the discrete cosine transform (DCT) in order to convert any video source like CVBS, VGA, DVI, HDMI, etc. into digital RGB at the native resolution of the display panel. In a laptop the graphics chip will directly produce a signal suitable for connection to the built-in TFT display. A control mechanism for the backlight is usually included on the same controller board.

The low level interface of STN, DSTN, or TFT display panels use either single ended TTL 5 V signal for older displays or TTL 3.3 V for slightly newer displays that transmits the pixel clock, horizontal sync, vertical sync, digital red, digital green, digital blue in parallel. Some models (for example the AT070TN92) also feature input/display enable, horizontal scan direction and vertical scan direction signals.

New and large (>15") TFT displays often use LVDS signaling that transmits the same contents as the parallel interface (Hsync, Vsync, RGB) but will put control and RGB bits into a number of serial transmission lines synchronized to a clock whose rate is equal to the pixel rate. LVDS transmits seven bits per clock per data line, with six bits being data and one bit used to signal if the other six bits need to be inverted in order to maintain DC balance. Low-cost TFT displays often have three data lines and therefore only directly support 18 bits per pixel. Upscale displays have four or five data lines to support 24 bits per pixel (truecolor) or 30 bits per pixel respectively. Panel manufacturers are slowly replacing LVDS with Internal DisplayPort and Embedded DisplayPort, which allow sixfold reduction of the number of differential pairs.

The bare display panel will only accept a digital video signal at the resolution determined by the panel pixel matrix designed at manufacture. Some screen panels will ignore the LSB bits of the color information to present a consistent interface (8 bit -> 6 bit/color x3).

Kawamoto, H. (2012). "The Inventors of TFT Active-Matrix LCD Receive the 2011 IEEE Nishizawa Medal". Journal of Display Technology. 8 (1): 3–4. Bibcode:2012JDisT...8....3K. doi:10.1109/JDT.2011.2177740. ISSN 1551-319X.

K. H. Lee; H. Y. Kim; K. H. Park; S. J. Jang; I. C. Park & J. Y. Lee (June 2006). "A Novel Outdoor Readability of Portable TFT-LCD with AFFS Technology". SID Symposium Digest of Technical Papers. AIP. 37 (1): 1079–82. doi:10.1889/1.2433159. S2CID 129569963.

A medical display is a monitor that meets the high demands of medical imaging. Medical displays usually come with special image-enhancing technologies to ensure consistent brightness over the lifetime of the display, noise-free images, ergonomic reading and automated compliance with DICOM and other medical image quality standards.

Displays for digital pathology are designed especially for image viewing in pathology. For example, they offer color spaces that are adapted to digital slides, or fast refresh rates for smooth and clear images during panning or zooming. They deliver consistent, detailed images and their image quality doesn’t degrade over the years.

Surgical displays range from near-patient monitors to large-screen OR displays. Most surgical displays can be mounted onto surgical arms or booms, with cables neatly hidden, and the screen is usually scratch-resistant. They can also allow for easy cleaning and disinfection.

A dental display is a high-bright, medical monitor designed for viewing of dental images, such as X-rays of teeth, bone, nerves, and soft tissue. With dental displays, subtle abnormalities or concealed anatomical structures in the oral and maxillofacial regions become more visible, compared to consumer displays. This makes it easier for dentists to detect dental pathologies. Dental displays come in various shapes and forms, from cleanable review displays to high-end displays designed specifically for dental diagnosis.

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