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best lcd monitors

The Best LCD Monitors in 2021

Author: Robert Wilson

Electronics & Peripherals Expert

When choosing the right LCD monitor nowadays there are many other technical aspects to consider in addition to the size, the interaction of which make up the image quality.

In the following, we will deal with key parameters of image quality in more detail. The background and contextual knowledge that this provides can not only help you with the purchase decision, but can also be helpful when using the screen.

  • In this article we have covered several parameters for LCD monitors in more detail. The image quality is determined, for example, by the resolution and the pixel density.
  • The response time and the refresh rate are also important performance indicators. In order to make the best decision, it is important to consider not only your own requirements but also the capacity of the hardware.
  • Knowing about these aspects of image quality can come in handy not only when purchasing, but also when using an LCD monitor.

Best LCD Monitors


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This Samsung LCD monitor scores because of the curvature of the screen, as the monitor adapts to the natural course of the eyes due to the curvature. This protects the eyes and reduces fatigue.

In addition, the curvature of the screen covers another area of the field of view, which creates an even more intense picture experience.

Dell 27 SE2719H

Dell 27 LED backlit LCD Monitor SE2719H
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Dell 27 LED backlit LCD Monitor SE2719H
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  • Easily tilt the monitor to get just the right viewing angle

This 27 inch full HD LCD monitor has a response time of 5 ms. This fast transmission, as well as the LED background lighting, results in an excellent picture quality of the monitor.

This LCD monitor from Dell also scores with a flicker-free monitor. Because that not only leads to optimal image quality, but is also easy on your own eyes.

The purchase of this LCD monitor is also good for the environment, as compared to other LCD monitors, this SE2719H monitor releases fewer harmful substances during manufacture and disposal.

BenQ GW2480 24 Inch LCD Monitor

BenQ 24 Inch LCD Monitor
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BenQ 24 Inch LCD Monitor
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This gaming LCD monitor has a very fast response time of just 5ms. Of course, the 23.8 inch screen is full HD, which also leads to optimal performance.

The customers also appreciate the image reproduction. Because with the high contrast ratio, this BenQ LCD monitor offers perfect black levels, which in turn is reflected in very good color rendering and saturation.

FAQ’s: LCD Monitors

What does screen resolution mean?

The image on a monitor is made up of individual image points (pixels). These pixels each consist of areas (subpixels) for the three primary colors (red, green and blue).

These subpixels can be switched on and off individually, for which the liquid crystals are responsible.

Resolution is usually the number of pixels in columns (width) x rows (height). The total number of pixels at the resolution 1,920 × 1,080 is e.g. 2,073,600.

A higher resolution basically means more pixels and helps to achieve a higher level of detail.

In the case of LCD screens, the resolution is always physically fixed. This native resolution determines how many pixels the monitor can display horizontally and vertically.

A smaller resolution is presented on a display either on a smaller image section with identical image quality or scaled to the entire screen area.

The latter is done by means of interpolation and can result in zoom effects and image blurring. A deviation from the native resolution usually means a loss in image quality.

What is the pixel density and what does it say?

In addition, there is also the pixel density, i.e. the distance between the pixels to be taken into account. This can be calculated from the resolution and the screen diagonal and is expressed in ppi, i.e. Pixels per inch.

The pixel density indicates how sharp and detailed the picture ultimately appears.

The larger a display is with the same resolution, the smaller the pixel density. Therefore, a higher resolution is required for larger monitors in order to achieve the same image quality. PC monitors have a pixel density of around 100 ppi and smartphones around 300 ppi.

For larger displays you need a higher resolution in order to achieve the same pixel density or sharpness as with smaller ones.

The latter is the case because the screen is smaller here. It is also necessary because the distance between the display and the eye on smartphones is usually much smaller than on desktop computers.

With such small distances, individual pixels would be recognizable at a lower pixel density and letters would e.g. appear frayed.

What screen formats are there and what are the most common?

In addition to the total number of pixels, the native resolution of a monitor also determines the screen format, i.e. the ratio between width and height.

The format is often referred to as the aspect ratio. Until around 2003, screens were mostly 4: 3 or sometimes 5: 4.

Then broadband formats came up for laptops and PC monitors. They sat down i.a. due to their suitability for movies and gaming.

Nowadays the widescreen format has prevailed. Most screens have the aspect ratio 16: 9 (e.g. 1920 × 1080), some 21: 9 (= Ultra Wide Format). The 16:10 format is also still available.

The latter shows a bit more information in height. This compensates for the disadvantage that widescreen formats require more scrolling when working on documents and websites.

With the basic knowledge covered so far, the most important screen resolutions currently in use are dealt with below.

What screen resolutions are there and which one is ideal for me?

While monitors are generally offered with different native resolutions, three in particular are common today:

  • Full HD
  • WQHD / QHD
  • UltraHD / 4K

Full HD (= full high resolution) is a resolution of 1,920 x 1,080 = 2,03,600 pixels and an aspect ratio of 16: 9. The resolution is also known as 1080p and is very common, especially with 24 inch monitors.

With this combination you get a good price-performance ratio and a very large selection. For larger screens, however, a higher resolution becomes interesting.

The next higher common resolution is called WQHD or QHD. The W stands for Wide and indicates that it is also a widescreen format (16: 9).

QHD is four times the resolution of normal HD (720p) and is also known as 1440p. It offers 2,560 × 1,440 = 3. 686,400 pixels.

Due to the higher number of pixels, QHD requires more computing power than Full HD. If your hardware doesn’t support that, games won’t run as fast anymore or you have to select a medium level of detail in the graphics options, which means that the advantage of the finer picture is given away.

4K monitors offer an even higher resolution. The Ultra HD / 4K resolution offers as many pixels as four full HD displays, namely 3,840 x 2,160 = 8,2494,200. The picture format, which is also in trend with TV sets, is again 16: 9 for the resolution.

The resolution is particularly useful for monitors with a very large screen diagonal. You need it to achieve the same pixel density that the Full HD resolution provides with 24 inches. However, 27-inch monitors with 4K are already available.
The hardware requirements are of course even greater with 4K. Before making a purchase, you should definitely check whether your hardware is up to date.

Older Windows versions can also cause problems. If you want to connect the monitor via HDMI cable, the version should be correct, from HDMI 2.0, 4K with 60 Hz is possible.

The higher number of pixels of the QHD and UltraHD / 4K resolution brings more image information and thus a finer image, but it also means more computing effort.

What does response time mean for monitors?

The response time indicates the time in milliseconds that a pixel of the LCD display needs to change its state. Two measurement values ​​are used for this: black-to-white and gray-to-gray.

Pixels have to change their color very quickly, especially with dynamic content such as video films and games. If the response time is too short, afterglow or streaking occurs. The liquid crystals lag behind the speed with which the graphics card changes the picture.

The manufacturer’s information on response times relate to the optimal case and rarely occur in reality. Nevertheless, many monitors nowadays offer a sufficiently short response time.

The cheaper TN panels are also among others still widely used by gamers due to their short response time. However, if you have a particularly sensitive eye or often play multiplayer games with fast-paced battle scenes, then a screen with a particularly low response time (up to 1 ms) could be relevant.

What does the refresh rate mean?

The refresh rate indicates how many different screen pages can be displayed per second. It is given in Hertz, with a value of 60 Hertz meaning 60 frames per second.

Especially with gaming monitors, a refresh rate of over 60 HZ is becoming more and more popular. E.g. 120 Hz and 144 Hz monitors are offered, and even higher refresh rates are available.

The higher Hertz number provides an image that some gamers perceive as calmer, smoother and more fluid. As a result, a monitor refresh rate of 120 Hz can be advantageous, even if the frame rate of the PC is below 120 frames per second.

120 Hz are also very advantageous for 3D, as an image is required alternately for each side. This halves the effective number of images per second, which can be perceived as jerky.

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Last product update on 2022-06-30 | Source: Amazon Affiliate