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15 Best Monitors Under $300 > October 2021 > Buying Guide

Best Monitors Under $300 – Ultimate Buying Guide

Many shoppers online like to save as much money as possible and have a specific budget in mind, and we honestly get it. The most common price buyers allocate for a new monitor is around 300 dollars. Thankfully, you can actually get a lot for your money when purchasing a monitor under 300 dollars nowadays.

What Can You Get with a Monitor Under 300 Dollars?

Screen Size

Monitors under 300 dollars typically have a 19 inch to 32 inch screen, with the majority being 24 and 27 inches. 19-32 inch monitors will get the job done for all of your daily tasks and fit most areas allocated for computer use.

Resolution

Most monitors under 300 dollars have a 1920 x 1080, Full HD (FHD) screen resolution. FHD works perfectly with the 19 to 27 inch screen range, because the pixels are not as widely distributed, and produce a sharper more detailed image. If you’re looking for a 32 inch display, you should get a monitor with a QHD (2560 x 1440) or 4K (3840 x 2160) screen resolution.

Refresh Rate & Response Time

Refresh rates and response times are key factors for display imaging speed and for games. Most of the monitors under 300 dollars come with a 60Hz refresh rate and a 5ms response time. This will get the job done for most of your daily tasks and standard gaming. There are some monitors with higher specs, that can range from a 75Hz to 240Hz refresh rate.

Display Technology

The best monitors under 300 dollars mostly utilize IPS technology. IPS or In-Plane Switching displays, are more vibrant in color and have increased viewing angles compared to TN panels. TN panels appear to be dull when viewed from sides, while IPS displays do not fade.

Note: Prices can fluctuate on a daily basis, and may go somewhat over 300 dollars depending on supply and demand.

Best Monitor Under 300 Dollars 2021 – Quick List

  1. HP M27ha (Best Overall)
  2. Samsung CF390 – (Best Samsung, 27 inch)
  3. Samsung UE57 – (Best Samsung, 28 inch, 4K)
  4. Philips 278E1A – (Best Philips, 27 inch, 4K)
  5. AOC U2790VQ – (Best AOC, 27 inch, 4K)
  6. ViewSonic VX3211 – (Best Viewsonic, 32 inch, 2K)
  7. LG 32ML600M-B – (Best LG, 32 inch)
  8. Dell S2421HGF – (Best Dell, 24 inch, Gaming)
  9. ASUS VG278QR(Best ASUS, 27 inch, Gaming)
  10. ASUS VP28UQG (Best ASUS, 28 inch, Gaming, 4K)
  11. ASUS TUF VG328H1B (Best ASUS, 32 inch, Gaming)
  12. BenQ EL2870U (Best BenQ, 28 inch, Gaming, 4K)
  13. Sceptre C305W-2560UN – (Best Sceptre, 30 inch, Gaming)
  14. AOC CQ27G2 – (Best AOC, 27 inch, Gaming, 2K)
  15. AOC CQ32G1 – (Best AOC, 32 inch, Gaming, 2K)

Best Monitor Under 300 Dollars 2021 – Reviews

1. HP M27ha – Best Overall

Best Monitor Under 300 Dollars 2021 (Best Overall)

The HP M27ha is currently one of the best selling 27 inch monitors on the market. It’s easy to see why when you consider how feature-packed and affordable it is. It has an industry leading IPS panel, built-in speakers, eye care tech, and a highly adjustable stand. The stand is capable of swiveling, tilting, and even rotating the screen from a horizontal mode to a vertical mode. Thanks to the VESA mounting capability, affordable price tag, and minimal bezels, it’s perfect for a multi-monitor setup.


2. Samsung CF390 – Best Samsung, 27 inch

Best Monitor Under 300 Dollars 2021 (Best Samsung, 27 inch)

We understand that many people love to get things done on their computer, and enjoy having the best hardware to do just that. The Samsung CF390 delivers this by with it’s attractive, minimalist design and ergonomic, curved display.

Pretty much everyone will appreciate the wider field of view that facilitates multi-tasking and working with large documents and images. It literally makes work more enjoyable and you actually look forward to utilizing the display. This monitor is not all work and no play, you can still thoroughly enjoy all of your favorite streaming content in Full HD.


3. Samsung UE57 – Best Samsung, 28 inch, 4K

Best Monitor Under 300 Dollars 2021 (Best Samsung, 28 inch, 4K)

The Samsung UE57 is perfect for an office, but isn’t an exact fit for a creative office. Even cheaper options like the VIOTEK NB27CB have a more modern look. We like the brushed metal finish on the base and around the bezels, though everything else seems designed to be inoffensive as possible.

This Samsung monitor is incredibly portable, a surprise for us. With a net weight of 11.6 pounds, you’ll find it to be pleasantly easy to be picked up and repositioned on your desks when necessary. It is much lighter than similarly-priced monitors, and helpful feature since it isn’t all that flexible.

The monitor stand has tilt adjustment (5 degrees down and 15 degrees up), but the lack of height or swivel adjustment is still disappointing. For comfort, you’ll have to find a good position on your desk or adjust your chair accordingly.

The Samsung UE57 delivers crisp 4K images on the 3,480-by-2,160 resolution panel. During testing, the shadow detail was impressive, with good color output. As with TN-based UHD monitors, viewing angles tend to suffer, whilst In-Plane Switching (IPS) panels deliver stellar viewing angles. Viewed from around 56 degrees, you might notice some color shifting (from the center to the sides), and the same happens when viewed from a top angle.

As expected, the 28-inch Samsung UE57’s color accuracy was at par with every other TN-based UHD panel we’ve had on our desk previously. For individual colors, red and blue are well aligned with their ideal coordinates, in testing, though green is slightly off its box, though not prohibitively so. While streaming Prison Break: Resurrection, the skin tones looked natural, so it will deliver quality pictures, whether you’re streaming or on Blu-ray.

The panel ‘s input lag (time the monitor takes to pick a command from an input controller) of 36.1 milliseconds is pretty quick, though we’ve some monitors in the same category with speedy 9.9 millisecond lag. Power consumption stands at 45 watts, though you can get slightly more in Standard mode, and even better in Eco mode.


4. Philips 278E1A – Best Philips, 27 inch, 4K

Best Monitor Under 300 Dollars 2021 (Best Philips, 27 inch, 4K)

The Philips 278E1A is a fantastic, 4K monitor with an astonishing 109% sRGB color coverage. Just picture yourself working on a detailed design project, or editing photos and videos in UHD, with a whopping resolution of 3840×2160. Philips has integrated their proprietary SmartContrast with Mega Infinity Dynamic Contrast Ratio, to make sure you get the optimal deep blacks, and bright whites. Another useful feature is the built-in speakers, which are great for background music. And of course, you can entertain yourself with a movie, tv show, or pc game with the Philips 278E1A… all in 4K.


5. AOC U2790VQ – Best AOC, 27 inch, 4K

Best Monitor Under 300 Dollars 2021 (Best AOC, 27 inch, 4K)

The AOC U2790VQ is an amazing 4K monitor, with an amazing price, and we are not just saying that. It pretty much goes toe to toe with the Philips 278E1A. One significant difference is the bezels are noticeably smaller on the AOC. This is great for a multiple monitor setup, as well as further utilizing the screen to focus on your designs. Additionally, the AOC has 10-bit color depth, which displays more colors and provides smoother color transitions compared to traditional monitors.


6. ViewSonic VX3211 – Best ViewSonic, 32 inch, 2K

Best Monitor Under 300 Dollars 2021 (Best Viewsonic, 32 inch, 2K)

Those who are in search of a monitor under $300 which is great for design, productivity, and some gaming, should consider the ViewSonic VX3211. This 31.5-inch monitor uses an IPS-type panel and offers a 2560×1440 resolution.

Due to vibrant colors and high image quality, this model is suitable not only for viewing media and playing games, but also is a perfect monitor for office needs.

You can easily connect ViewSonic VX3211-2K-MHD to almost any device using a variety of connectivity options.

Also, this model includes built-in speakers as well as additional 3.5mm input and output for external speakers or headphones.


7. LG 32ML600M-B – Best LG, 32 inch

Best Monitor Under 300 Dollars 2021 (Best LG, 32 inch)

The LG 32ML600M-B has a 32 inch, 1080p display, that excels at capturing true to life colors, deep blacks, and bright whites. This is largely due to the wide DCI P3 color spectrum coverage and hdr support.


8. Dell S2421HGF – Best Dell, 24 inch, Gaming

Best Monitor Under 300 Dollars 2021 (Best Dell, 24 inch, Gaming)

For many gamers, a more compact screen can be ideal, especially if you have limited desktop space. The Dell S2421HGF packs quite a punch, in it’s somewhat smaller 24 inch frame. It has a lightning fast 144Hz refresh rate and 1ms response time. That’s plenty of speed to keep your framerates high and compete with some of the best pc gamers. It’s all kept under control and seamless thanks to the AMD FreeSync Premium.


9. ASUS VG278QR – Best ASUS, 27 inch, Gaming

Best Monitor Under 300 Dollars 2021 (Best ASUS, 27 inch, Gaming)

ASUS is a big player in the pc gaming space, so it should be no surprise to see the ASUS VG278QR as our “Best Gaming” pick. ASUS has managed to include essentially everything you could want as a gamer with the ASUS VG278QR, all for less than 300 smackaroos. It has an impressive 165Hz refresh rate with a 0.5ms (GTG) response time, which of course is great for speedy and fluid gameplay. The Adaptive-Sync/FreeSync additionally helps reduce screen tearing and choppy frame rates. ASUS even takes it a step further by considering your eye health, with flicker-free and ultra-low blue light technology. Perfect for all day/all night gaming sessions.


10. ASUS VP28UQG – Best ASUS, 28 inch, Gaming, 4K

Best Monitor Under 300 Dollars 2021 (Best ASUS, 28 inch, Gaming, 4K)

ASUS continues to be one of the industry leaders for gaming monitors, and the ASUS VP28UQG is solid proof. If you want one of ASUS’ renowned monitors combined with a 4K resolution, this is it. The 28 inch UHD display has a 1ms response time, Adaptive Sync/FreeSync, eye care tech, and a proprietary 5-way OSD joystick to adjust the screen on the fly. What more do you want?


11. ASUS TUF VG32H1B – Best ASUS, 32 inch, Gaming

Best Monitor Under 300 Dollars 2021 (Best ASUS, 32 inch, Gaming)

The ASUS TUF VG32H1B has a FHD 32 inch display, that is targeted for the more serious gamers. The curved screen pulls you in, and with rapid speed churns out a 165Hz refresh rate and 1ms response time. There’s plenty of features to to keep all the action smooth and tear-free including ELMB (Extreme Low Motion Blur), and Adaptive-Sync & FreeSync Premium. No need for external speakers, thanks to the built-in ones. The VESA support makes it possible for a dual monitor or triple monitor stand.


12. BenQ EL2870U – Best BenQ, 28 inch, Gaming, 4K

Best Monitor Under 300 Dollars 2021 (Best BenQ, 28 inch, Gaming, 4K)

If want another 4K gaming option, the BenQ EL2870U may be exactly what you’re looking for. It’s somewhat similar to the ASUS VP28UQG, but the BenQ EL2870U comes with built-in speakers and HDR support. It also has a 1ms response time, eye care tech, and AMD Free Sync. Of course with the 3840 x 2160 screen, you will be just as enterained with pc games as you will your favorite movies and tv shows.


13. Sceptre C305W-2560UN – Best Sceptre, 30 inch, Gaming

Best Monitor Under 300 Dollars 2021 (Best Sceptre, 30 inch, Gaming)

The C305W-2560UN by Sceptre is a huge, ultrawide “beast”. With it’s 30 inch curved display, 85Hz refresh rate, built-in speakers, and 1ms response time, the C305W-2560UN is great for gaming and streaming your favorite video content online.


14. AOC CQ27G2 – Best AOC, 27 inch, Gaming, 2K

Best Monitor Under 300 Dollars 2021 (Best AOC, 27 inch, Gaming, 2K)

AOC might not be as well known as HP and ASUS, but AOC provides comparable computer products with very competitive prices. The AOC CQ27G2 is a great testament to AOC’s high quality/low price product line. The 1500R curved screen pulls you into whatever you’re working on or being entertained with, such as movies and games. In fact it’s actually a strong contender for the best gaming monitor under 300 dollars.


15. AOC CQ32G1 – Best AOC, Gaming, 32 inch, 2K

Best Monitor Under 300 Dollars 2021 (Best AOC, Gaming, 32 Inch, 2K)

AOC CQ32G1 is a fantastic curved, 32 inch, 1440p, 2K monitor under $300 with an impressive 144Hz refresh rate. This combination will impress even the most demanding gamer.

It is similar to other 32-inch curved displays we tested ‒ the curvature is 1800R and it features a VA panel. The curved screen really does “pull you” in, we love it.


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cathode-ray tube (CRT) computer monitor

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best monitor under 300

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The area, height and width of displays with identical diagonal measurements vary dependent on aspect ratio.

 
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A fixed 19-inch (48 cm), 4:3 rack mount LCD monitor

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A fixed rack mount monitor is mounted directly to the rack with the LCD visible at all times. The height of the unit is measured in rack units (RU) and 8U or 9U are most common to fit 17-inch or 19-inch LCDs.

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The front sides of the unit are provided with flanges to mount to the rack, providing appropriately spaced holes or slots for the rack mounting screws.

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A 19-inch diagonal LCD is the largest size that will fit within the rails of a 19-inch rack. Larger LCDs may be accommodated but are ‘mount-on-rack’ and extend forward of the rack.

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There are smaller display units, typically used in broadcast environments, which fit multiple smaller LCDs side by side into one rack mount.

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A 1U stowable clamshell 19-inch (48 cm), 4:3 rack mount LCD monitor with keyboard

Stowable

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A stowable rack mount monitor is 1U, 2U or 3U high and is mounted on rack slides allowing the display to be folded down and the unit slid into the rack for storage. The display is visible only when the display is pulled out of the rack and deployed.

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These units may include only a display or may be equipped with a keyboard creating a KVM (Keyboard Video Monitor). Most common are systems with a single LCD but there are systems providing two or three displays in a single rack mount system.

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best gaming monitors under 300

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On two-dimensional display devices such as computer monitors the display size or view able image size is the actual amount of screen space that is available to display a picturevideo or working space, without obstruction.

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computer monitor is an output device that displays information in pictorial form. A monitor usually comprises the visual displaycircuitry, casing, and power supply. The display device in modern monitors is typically a thin film.

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computer monitor is an output device that displays information in pictorial form. A monitor usually comprises the visual displaycircuitry, casing, and power supply.

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The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) with LED backlighting having replaced cold-cathode fluorescent lamp (CCFL) backlighting. Older monitors used a cathode ray tube (CRT).

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Monitors are connected to the computer via VGADigital Visual Interface (DVI), HDMIDisplayPortThunderboltlow-voltage differential signaling (LVDS) or other proprietary connectors and signals.

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Originally, computer monitors were used for data processing while television sets were used for entertainment.

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From the 1980s onwards, computers (and their monitors) have been used for both data processing and entertainment, while televisions have implemented some computer functionality. The common aspect ratio of televisions, and computer monitors, has changed from 4:3 to 16:10, to 16:9.

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Modern computer monitors are easily interchangeable with conventional television sets and viceversa. However, as computer monitors do not necessarily include integrated speakers nor TV tuners (such as Digital television adapters), it may not be possible to use a computer monitor as a TV set without external components.[1]

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Early electronic computers were fitted with a panel of light bulbs where the state of each particular bulb would indicate the on/off state of a particular register bit inside the computer.

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This allowed the engineers operating the computer to monitor the internal state of the machine, so this panel of lights came to be known as the ‘monitor’.

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As early monitors were only capable of displaying a very limited amount of information and were very transient, they were rarely considered for program output. Instead, a line printer was the primary output device, while the monitor was limited to keeping track of the program’s operation.[2]

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As technology developed engineers realized that the output of a CRT display was more flexible than a panel of light bulbs and eventually, by giving control of what was displayed in the program itself, the monitor itself became a powerful output device in its own right.[citation needed]

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Computer monitors were formerly known as visual display units (VDU), but this term had mostly fallen out of use by the 1990s.

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Technologies[edit]

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Further information: Comparison of CRT, LCD, Plasma, and OLED and History of display technology

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Multiple technologies have been used for computer monitors. Until the 21st century most used cathode ray tubes but they have largely been superseded by LCD monitors.

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Cathode ray tube[edit]

Main article: Cathode ray tube

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The first computer monitors used cathode ray tubes (CRTs). Prior to the advent of home computers in the late 1970s, it was common for a video display terminal (VDT) using a CRT to be physically integrated with a keyboard and other components of the system in a single large chassis.

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The display was monochrome and far less sharp and detailed than on a modern flat-panel monitor, necessitating the use of relatively large text and severely limiting the amount of information that could be displayed at one time.

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High-resolution CRT displays were developed for the specialized military, industrial and scientific applications but they were far too costly for general use.

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Some of the earliest home computers (such as the TRS-80 and Commodore PET) were limited to monochrome CRT displays, but color display capability was already a standard feature of the pioneering Apple II, introduced in 1977, and the specialty of the more graphically sophisticated Atari 800, introduced in 1979.

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Either computer could be connected to the antenna terminals of an ordinary color TV set or used with a purpose-made CRT color monitor for optimum resolution and color quality.

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Lagging several years behind, in 1981 IBM introduced the Color Graphics Adapter, which could display four colors with a resolution of 320 x 200 pixels, or it could produce 640 x 200 pixels with two colors.

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In 1984 IBM introduced the Enhanced Graphics Adapter which was capable of producing 16 colors and had a resolution of 640 x 350.[3]

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By the end of the 1980s color CRT monitors that could clearly display 1024 x 768 pixels were widely available and increasingly affordable. During the following decade, maximum display resolutions gradually increased and prices continued to fall.

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CRT technology remained dominant in the PC monitor market into the new millennium partly because it was cheaper to produce and offered to view angles close to 180 degrees.[4] 

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CRTs still offer some image quality advantages[clarification needed] over LCDs but improvements to the latter have made them much less obvious.

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The dynamic range of early LCD panels was very poor, and although text and other motionless graphics were sharper than on a CRT, an LCD characteristic known as pixel lag caused moving graphics to appear noticeably smeared and blurry.

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Liquid crystal display[edit]

Main articles: Liquid-crystal display and Thin-film-transistor liquid-crystal display

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There are multiple technologies that have been used to implement liquid crystal displays (LCD). Throughout the 1990s, the primary use of LCD technology as computer monitors was in laptops where the lower power consumption, lighter weight, and smaller physical size of LCDs justified the higher price versus a CRT.

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Commonly, the same laptop would be offered with an assortment of display options at increasing price points: (active or passive) monochrome, passive color, or active matrix color (TFT). As volume and manufacturing capability have improved, the monochrome and passive color technologies were dropped from most product lines.

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TFT-LCD is a variant of LCD which is now the dominant technology used for computer monitors.[5]

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The first standalone LCDs appeared in the mid-1990s selling for high prices. As prices declined over a period of years they became more popular, and by 1997 were competing with CRT monitors.

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Among the first desktop LCD computer monitors was the Eizo L66 in the mid-1990s, the Apple Studio Display in 1998, and the Apple Cinema Display in 1999. In 2003, TFT-LCDs outsold CRTs for the first time, becoming the primary technology used for computer monitors.[4] 

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The main advantages of LCDs over CRT displays are that LCDs consume less power, take up much less space, and are considerably lighter. The now common active matrix TFT-LCD technology also has less flickering than CRTs, which reduces eye strain.[6] 

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On the other hand, CRT monitors have superior contrast, have a superior response time, are able to use multiple screen resolutions natively, and there is no discernible flicker if the refresh rate[7] is set to a sufficiently high value. LCD monitors have now very high temporal accuracy and can be used for vision research.[8]

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High dynamic range (HDR)[7] has been implemented into high-end LCD monitors to improve color accuracy. Since around the late 2000s, widescreen LCD monitors have become popular.

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In part due to television seriesmotion pictures and video games transitioning to high-definition (HD), which makes standard-width monitors unable to display them correctly as they either stretch or crop HD content.

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These types of monitors may also display it in the proper width, however they usually fill the extra space at the top and bottom of the image with black bars.

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Other advantages of widescreen monitors over standard-width monitors is that they make work more productive by displaying more of a user’s documents and images, and allow displaying toolbars with documents.

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They also have a larger viewing area, with a typical widescreen monitor having a 16:9 aspect ratio, compared to the 4:3 aspect ratio of a typical standard-width monitor.

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Main article: Organic light-emitting diode

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Organic light-emitting diode (OLED) monitors provide higher contrast and better viewing angles than LCDs but they require more power when displaying documents with white or bright backgrounds and have a severe problem known as burn-in. They are less common than LCD monitors and are often more expensive.

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Measurements of performance[edit]

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The performance of a monitor is measured by the following parameters:

  • Luminance is measured in candelas per square meter (cd/m2 also called a Nit).
  • Color depth is measured in bits per primary color or bits for all colors.
  • Gamut is measured as coordinates in the CIE 1931 color space. The names sRGB or Adobe RGB are shorthand notations.
  • Aspect ratio is the ratio of the horizontal length to the vertical length. Monitors usually have the aspect ratio 4:35:416:10 or 16:9.
  • Viewable image size is usually measured diagonally, but the actual widths and heights are more informative since they are not affected by the aspect ratio in the same way. For CRTs, the viewable size is typically 1 in (25 mm) smaller than the tube itself.
  • Display resolution is the number of distinct pixels in each dimension that can be displayed. For a given display size, maximum resolution is limited by dot pitch.
  • Dot pitch is the distance between sub-pixels of the same color in millimeters. In general, the smaller the dot pitch, the sharper the picture will appear.
  • Refresh rate is the number of times in a second that a display is illuminated. Maximum refresh rate is limited by response time.
  • Response time is the time a pixel in a monitor takes to go from active (white) to inactive (black) and back to active (white) again, measured in milliseconds. Lower numbers mean faster transitions and therefore fewer visible image artifacts.
  • Contrast ratio is the ratio of the luminosity of the brightest color (white) to that of the darkest color (black) that the monitor is capable of producing.
  • Power consumption is measured in watts.
  • Delta-E: Color accuracy is measured in delta-E; the lower the delta-E, the more accurate the color representation. A delta-E of below 1 is imperceptible to the human eye. Delta-Es of 2 to 4 are considered good and require a sensitive eye to spot the difference.
  • Viewing angle is the maximum angle at which images on the monitor can be viewed, without excessive degradation to the image. It is measured in degrees horizontally and vertically.

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Main article: Display size

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The area, height and width of displays with identical diagonal measurements vary dependent on aspect ratio.

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On two-dimensional display devices such as computer monitors the display size or view able image size is the actual amount of screen space that is available to display a picturevideo or working space, without obstruction from the case or other aspects of the unit’s design.

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The main measurements for display devices are: width, height, total area and the diagonal.

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The size of a display is usually by monitor manufacturers given by the diagonal, i.e. the distance between two opposite screen corners. This method of measurement is inherited from the method used for the first generation of CRT television, when picture tubes with circular faces were in common use.

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Being circular, it was the external diameter of the glass envelope that described their size. Since these circular tubes were used to display rectangular images, the diagonal measurement of the rectangular image was smaller than the diameter of the tube’s face (due to the thickness of the glass).

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This method continued even when cathode ray tubes were manufactured as rounded rectangles; it had the advantage of being a single number specifying the size, and was not confusing when the aspect ratio was universally 4:3.

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With the introduction of flat panel technology, the diagonal measurement became the actual diagonal of the visible display. This meant that an eighteen-inch LCD had a larger visible area than an eighteen-inch cathode ray tube.

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The estimation of the monitor size by the distance between opposite corners does not take into account the display aspect ratio, so that for example a 16:9 21-inch (53 cm) widescreen display has less area, than a 21-inch (53 cm) 4:3 screen.

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The 4:3 screen has dimensions of 16.8 in × 12.6 in (43 cm × 32 cm) and area 211 sq in (1,360 cm2), while the widescreen is 18.3 in × 10.3 in (46 cm × 26 cm), 188 sq in (1,210 cm2).

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Main article: Display aspect ratio

Until about 2003, most computer monitors had a 4:3 aspect ratio and some had 5:4. Between 2003 and 2006, monitors with 16:9 and mostly 16:10 (8:5) aspect ratios became commonly available, first in laptops and later also in standalone monitors.

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Reasons for this transition was productive uses for such monitors, i.e. besides widescreen computer game play and movie viewing, are the word processor display of two standard letter pages side by side, as well as CAD displays of large-size drawings and CAD application menus at the same time.[9][10] 

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In 2008 16:10 became the most common sold aspect ratio for LCD monitors and the same year 16:10 was the mainstream standard for laptops and notebook computers.[11]

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In 2010 the computer industry started to move over from 16:10 to 16:9 because 16:9 was chosen to be the standard high-definition television display size, and because they were cheaper to manufacture.

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In 2011 non-widescreen displays with 4:3 aspect ratios were only being manufactured in small quantities.

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According to Samsung this was because the “Demand for the old ‘Square monitors’ has decreased rapidly over the last couple of years,” and “I predict that by the end of 2011, production on all 4:3 or similar panels will be halted due to a lack of demand.”[12]

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Main article: Display resolution

The resolution for computer monitors has increased over time. From 320×200 during the early 1980s, to 1024×768 during the late 1990s. Since 2009, the most commonly sold resolution for computer monitors is 1920×1080.[13]

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 Before 2013 top-end consumer LCD monitors were limited to 2560×1600 at 30 in (76 cm), excluding Apple products and CRT monitors. Apple introduced 2880×1800 with Retina MacBook Pro at 15.4 in (39 cm) on June 12, 2012, and introduced a 5120×2880 Retina iMac at 27 in (69 cm) on October 16, 2014. By 2015 most major display manufacturers had released 3840×2160 resolution displays.

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Main article: Gamut

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Every RGB monitor has its own color gamut, bounded in chromaticity by a color triangle. Some of these triangles are smaller than the sRGB triangle, some are larger. Colors are typically encoded by 8 bits per primary color.

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The RGB value [255, 0, 0] represents red, but slightly different colors in different color spaces such as AdobeRGB and sRGB. Displaying sRGB-encoded data on wide-gamut devices can give an unrealistic result.[14] 

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The gamut is a property of the monitor; the image color space can be forwarded as Exif metadata in the picture. As long as the monitor gamut is wider than the color space gamut, correct display is possible, if the monitor is calibrated.

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A picture that uses colors that are outside the sRGB color space will display on an sRGB color space monitor with limitations.[15] Still today, many monitors that can display the sRGB color space are not factory adjusted to display it correctly.

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 Color management is needed both in electronic publishing (via the Internet for display in browsers) and in desktop publishing targeted to print.

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Additional features[edit]

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Most modern monitors will switch to a power-saving mode if no video-input signal is received. This allows modern operating systems to turn off a monitor after a specified period of inactivity.

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This also extends the monitor’s service life. Some monitors will also switch themselves off after a time period on standby.

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Most modern laptops provide a method of screen dimming after periods of inactivity or when the battery is in use. This extends battery life and reduces wear.

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Many monitors have other accessories (or connections for them) integrated. This places standard ports within easy reach and eliminates the need for another separate hubcameramicrophone, or set of speakers.

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These monitors have advanced microprocessors which contain codec information, Windows Interface drivers and other small software which help in proper functioning of these functions.

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Main article: Glossy display

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Some displays, especially newer LCD monitors, replace the traditional anti-glare matte finish with a glossy one. This increases color saturation and sharpness but reflections from lights and windows are very visible. Anti-reflective coatings are sometimes applied to help reduce reflections, although this only mitigates the effect.

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In about 2009, NEC/Alienware together with Ostendo Technologies (based in Carlsbad, CA) were offering a curved (concave) 43-inch (110 cm) monitor that allows better viewing angles near the edges, covering 75% of peripheral vision in the horizontal direction.

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This monitor had 2880×900 resolution, LED backlight and was marketed as suitable both for gaming and office work, while for $6499 it was rather expensive.[16] While this particular monitor is no longer in production, most PC manufacturers now offer some sort of curved desktop display.

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Narrow viewing angle screens are used in some security conscious applications.

3D[edit]

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See also: Active shutter 3D systemPolarized 3D system, and Autostereoscopy

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Newer monitors are able to display a different image for each eye, often with the help of special glasses, giving the perception of depth. An autostereoscopic screen can generate 3D images without headgear.

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Main article: Touchscreen

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These monitors use touching of the screen as an input method. Items can be selected or moved with a finger, and finger gestures may be used to convey commands. The screen will need frequent cleaning due to image degradation from fingerprints.

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Main article: Graphics tablet/screen hybrid

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A combination of a monitor with a graphics tablet. Such devices are typically unresponsive to touch without the use of one or more special tools’ pressure.

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Newer models however are now able to detect touch from any pressure and often have the ability to detect tilt and rotation as well.

Touch and tablet screens are used on LCDs as a substitute for the light pen, which can only work on CRTs.

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Main article: 21:9 aspect ratio

Monitors that feature an aspect ratio of 21:9 or 32:9 as opposed to the more common 16:9. 32:9 monitors are marketed as super ultrawide monitors.

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Computer monitors are provided with a variety of methods for mounting them depending on the application and environment.

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A desktop monitor is typically provided with a stand from the manufacturer which lifts the monitor up to a more ergonomic viewing height. The stand may be attached to the monitor using a proprietary method or may use, or be adaptable to, a Video Electronics Standards Association, VESA, standard mount.

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Using a VESA standard mount allows the monitor to be used with an after-market stand once the original stand is removed. Stands may be fixed or offer a variety of features such as height adjustment, horizontal swivel, and landscape or portrait screen orientation.

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The Flat Display Mounting Interface (FDMI), also known as VESA Mounting Interface Standard (MIS) or colloquially as a VESA mount, is a family of standards defined by the Video Electronics Standards Association for mounting flat panel monitorsTVs, and other displays to stands or wall mounts.[17] It is implemented on most modern flat-panel monitors and TVs.

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For Computer Monitors, the VESA Mount typically consists of four threaded holes on the rear of the display that will mate with an adapter bracket.

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Rack mount computer monitors are available in two styles and are intended to be mounted into a 19-inch rack:

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A fixed 19-inch (48 cm), 4:3 rack mount LCD monitor

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A fixed rack mount monitor is mounted directly to the rack with the LCD visible at all times. The height of the unit is measured in rack units (RU) and 8U or 9U are most common to fit 17-inch or 19-inch LCDs.

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The front sides of the unit are provided with flanges to mount to the rack, providing appropriately spaced holes or slots for the rack mounting screws.

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A 19-inch diagonal LCD is the largest size that will fit within the rails of a 19-inch rack.

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Larger LCDs may be accommodated but are ‘mount-on-rack’ and extend forward of the rack.

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There are smaller display units, typically used in broadcast environments, which fit multiple smaller LCDs side by side into one rack mount.

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A 1U stowable clamshell 19-inch (48 cm), 4:3 rack mount LCD monitor with keyboard

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A stowable rack mount monitor is 1U, 2U or 3U high and is mounted on rack slides allowing the display to be folded down and the unit slid into the rack for storage.

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The display is visible only when the display is pulled out of the rack and deployed.

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These units may include only a display or may be equipped with a keyboard creating a KVM (Keyboard Video Monitor).

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Most common are systems with a single LCD but there are systems providing two or three displays in a single rack mount system.

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A panel mount 19-inch (48 cm), 4:3 rack mount LCD monitor

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A panel mount computer monitor is intended for mounting into a flat surface with the front of the display unit protruding just slightly. They may also be mounted to the rear of the panel.

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A flange is provided around the LCD, sides, top and bottom, to allow mounting. This contrasts with a rack mount display where the flanges are only on the sides.

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The flanges will be provided with holes for thru-bolts or may have studs welded to the rear surface to secure the unit in the hole in the panel.

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Often a gasket is provided to provide a water-tight seal to the panel and the front of the LCD will be sealed to the back of the front panel to prevent water and dirt contamination.

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An open frame monitor provides the LCD monitor and enough supporting structure to hold associated electronics and to minimally support the LCD.

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Provision will be made for attaching the unit to some external structure for support and protection. Open frame LCDs are intended to be built into some other piece of equipment.

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An arcade video game would be a good example with the display mounted inside the cabinet.

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There is usually an open frame display inside all end-use displays with the end-use display simply providing an attractive protective enclosure.

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Some rack mount LCD manufacturers will purchase desktop displays, take them apart, and discard the outer plastic parts, keeping the inner open-frame LCD for inclusion into their product.

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According to an NSA document leaked to Der Spiegel, the NSA sometimes swaps the monitor cables on targeted computers with a bugged monitor cable in order to allow the NSA to remotely see what is being displayed on the targeted computer monitor.[18]

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Van Eck phreaking is the process of remotely displaying the contents of a CRT or LCD by detecting its electromagnetic emissions.

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It is named after Dutch computer researcher Wim van Eck, who in 1985 published the first paper on it, including proof of concept. Phreaking more generally is the process of exploiting telephone networks.[19]

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7 Comments
  1. Good prices.

  2. I picked up a pair of the Dell monitors you guys have listed. I like the frameless edges and solid bar across the bottom. No complaints.

  3. Pretty good monitors for 300 bucks.

    • That’s right Tom, it’s actually pretty amazing the high quality of a monitor that you can get right now for less than $300.

  4. […] Best Monitor Under 300 Dollars 2021 […]

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