Monitor: main features, types and quality. Computer monitor

According to surveys, a considerable part of the inhabitants of civilized countries conducted daily in front of the monitor to 10 hours. And to do this people at work and at home. This means that the quality of the monitors should be at a height that will allow you to avoid vision problems and prevent fatigue PC user.

CRT

Computer monitor — a device for visually displaying graphical and textual information. For many decades produced mostly options with a CRT (cathode ray device, a CRT). Those who have kept the old monitor, I know that they use a phosphor. Its grain glow under the influence of the electron beams. Apply 3 types of phosphor, divided by color featured in blue, red and green. Today, CRT monitors, high-volume hull, rarely used and selling them for a long time can not be found.

LCD-model

To create a monitor using this technology uses fluorescent lamps. Have liquid crystal display (LCD) devices display information in a smaller enclosure. The cost of the monitor is much lower than for models of other types. In addition, compared to the options based on the CRT, they have the ability to reproduce the image more accurately and prevent distortion.

PDP

The Action of a plasma or PDP displays based on the phenomenon of luminescence of the phosphor grains, when they fall to the ultraviolet rays produced by electrical discharge in plasma. These devices “picture” is bright and rich, and they have a long service life up to 30 years or more. The latter fact is an advantage of the PDF models before most of its competitors, which lose their properties after 10 years.

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LED monitors

The backlight Brightness is one of the most important factors affecting eye fatigue. To reduce their fatigue, you want to lower it to the minimum comfortable value. From this point of view, the most preferred are devices using LEDs exhibiting high efficiency. The advantages of LED monitors are high quality (sharpness) of the image, compactness and durability. However, on the market for the budget may disappoint, as for the sake of saving manufacturers use low-cost pulse-width modulators, for which there is a flashing effect that negate the advantages of using led illumination.

OLED monitors

This is a fairly rare kind of display devices based on the technology of organic light-emitting diodes. The main advantage of these monitors is the ability to create a flexible screen. In addition, because of the nature of the used technology when looking at such displays from any angle and the picture quality is not changed.

Laser monitors

These devices are still novelties. They are characterized by high contrast and brightness, and also have a very fast response time and low power consumption.

Monitor: main features

When Choosing a device to display information, you need to study its technical parameters. The main characteristics of monitors include:

• Contrast. This parameter displays the difference between the lightest and darkest area of the display surface. The larger the value, the monitor is considered to be of higher quality.
• Brightness. Determines the maximum specific luminosity reflecting surface, and its unit of measurement is 1 NIT is equal to the ratio of 1 DC to 1 sq. m.
• Permission. This is one of the most important parameters to which attention to when choosing a computer monitor. It determines the number of all the pixels forming the displayed image. The higher the resolution, the sharper will be the image displayed on the monitor screen.
• Horizontal scanning Frequency. This parameter is measured in Hertz and shows the frequency of the display image on the monitor screen.
• Vertical Frequency. Parameter characterizes the largest number of horizontal lines displayed by an electronic beam on the screen per unit time.

What to look for when choosing a monitor: size

As already mentioned, it is usually recommended to choose a model with high resolution. However, people with vision problems, should use the following guidelines: FullHD (1920x1080) optimal diagonal must be 23—24 inches, with a resolution of 1920 x 1200 pixels — 24 inches for 1680 on 1050 pixels. — 22 inch, and 2560 x 1440-27 inch. With these proportions, the user is not tired eyes and will not have problems with reading and viewing of small icons and interface controls.

As for the aspect ratio of the monitor, the most popular and common at the moment: 4 3, 16 10 and 16 9. However, the square (4:3) actively displaced from the market because they do notallows a good quality to view the movies, which usually have a wide format, as close as possible to 16:9. In addition, on monitors this form of a bad review, preventing to get the maximum pleasure from your video game.

The Best option for professionals

Those who monitor need not for entertainment, you should choose a widescreen model with proportions 16:10. They are great for 3D/2D graphics and code in several Windows. In addition, these monitors are more accustomed to viewing angles of human vision and are a compromise between the options with the aspect ratio 4:3 and 16:9.

Tips for choosing (brightness and contrast)

Many people familiar with the situation, when in the light of the day “picture” on the monitor it looks dull. In order not to suffer the inconvenience and not to spoil his vision, you should choose models with high contrast. They better display the black color, tints and shades. It is believed that a good figure — is a static contrast of 1000 to 1 or higher. It is calculated as the ratio of the maximum brightness (white) to the minimum.

In addition, some manufacturers indicate in the specifications of the monitor dynamic contrast. This figure, which depends on the ability of the lamp monitor will automatically adjust certain parameters to be displayed currently on the screen.

For Example, if the movie or game has a dark scene, the lamps begin to burn brighter, increasing visibility and contrast. However, this system seldom works properly, and the light areas are usually strongly lighted.

Communication ports

At the moment in the shops one can still find monitors with an analog D-Sub input when the screen resolution is over 1680 on 1050 pixels. The problem is that this interface is obsolete. He is not always able to provide the required rate information for resolutions in excess of 1680 1050 pixels. As a result, the display appears blurred and muddy areas.

To avoid this situation, need to get on Board the monitor was a DVI port or DisplayPort. Their presence — is a standard for modern monitors. It is a good idea, if there is a HDMI port, which is suitable for viewing HD-video from the console or with an external player. If he is, then it can be combined with DVI using an appropriate adapter for the monitor.

The matrix

There are several:

TN, which is suitable to fans of video games, allows Internet surfing and the use of any software. However, she is not the best choice for watching movies as it has bad viewing angles and “weak” black.

IPS-matrix, which is suitable for watching movies, color photos, games, Internet surfing, use of office programs. In other words, it is universal, therefore, monitors based on it today are the most popular. Judging by the reviews, these devices more than others like customers, they have large viewing angles and best colour reproduction among other models.

Among the disadvantages it should be noted the large weight and size, significant power consumption, low speed of response of pixels, etc. in addition, they are quite expensive, and they High input-lag.

Most popular monitors reviews

Among the variety of offerings on the market buyers it is difficult to make the right choice. To help you can feedback on specialized forums those who use one or the other monitor.

Key features of specific models put users at the forefront, along with the design and price. Assuming these parameters, then the best choice can be considered:

• DELL U2412M. the diagonal of the monitor in cm-60,96, and in inches — 24. A resolution of 1920 by 1200 pixels. Use WLED backlighting and a matrix TFT E-IPS. Among other characteristics: brightness-300 CD/m, contrast-1000:1, in the presence of anti-reflective coating. The model is in a sense a veteran in the market and attracted a large number of positive feedback, including marking high quality build. The only drawback — the response time pixel gap of 8 MS.
• Samsung S24D590PL. This is a fairly inexpensive device that is very popular. Technical characteristics screen: diagonal-23.6 inches and a resolution FullHD 1920 x 1080 pixels. Used matrix TFT AD-PLS and Flicker-Free illumination. Contrast - 1000 to 1, brightness is 250 CD/sq. m. At the monitor excellent color reproduction, no corner flashes on and provides stylish and tidy stand. Among the disadvantages are the unevenness of illumination.
• DELL U2414H. a Beautiful non-glare monitor. Main features: screen diagonal - 23.8 inches, brightness-250 CD/sq m, contrast-1000 to 1. The disadvantages of the monitor, judging by the reviews, should be attributed to the uneven illumination of a white field, which is particularly noticeable in the area of the corners of the screen.
• ASUS MX279H. It's quite a big and expensive high quality monitor. Main features: resolution 1920 x 1080 pixels, diagonal-27 inches, brightness-250 CD/sq m matrix TFT AH-IPS. The monitor great picture quality and build. In addition, it suitable for playing FullHD movies and games.
• BenQ BL2411PT. Judging by the reviews, this device is worth the money that he is required to pay.Specifications of monitor: screen size is 24 inch, display brightness-300 CD/sq. m. It is equipped with IPS-matrix with a resolution of 1920 by 1200 pixels. Disadvantages: there is no HDMI adapter for the monitor, the awkward menu.
• DELL P2414H. This is a fairly cheap monitor for office and home use created on the basis of high-quality IPS-matrix. Screen size — 24 inches. Resolution-FullHD 1920 x 1080 pixels. Other parameters: contrast 1000 to 1 and brightness of 250 CD/sq. m. the Main advantage — excellent color saturation and high build quality. Buyers note that when working with this monitor my eyes get tired much less than when using other models. However, the model is more expensive which is its major disadvantage.
• AOC i2757Fm. Pretty high quality monitor with a screen diagonal of 27 inches. Resolution - FullHD 1920 x 1080 pixels. Used TFT AH-IPS matrix. There are built-in speakers. The monitor has a stylish design and soft lighting.
• ASUS PA238Q. This is a good monitor from ASUS, which costs $ 350. The screen diagonal of 23 inches and a resolution FullHD. Among other features, it should be noted the brightness of 250 CD/sqm and the response-6 msec. Monitor demand for its low-cost price, wide viewing angles, high build quality and stylish design.
• ASUS PB278Q. This is a fairly expensive model with a diagonal of 27 inches, with a resolution of 2560 x 1440 pixels. As the reviews, customers give it preference because of picture quality, availability of built-in speakers and fast response, allowing you to play any videoigry. Among the shortcomings should be noted a low build quality. In particular, according to buyers, in the process of operation plastic frame “leaves” from the screen, and there clogged with dust.
• AOC g2460Pqu. This is a 24-inch model is equipped with a matrix TFT TN. Resolution — 1920 by 1080 pixels. Brightness-350 CD/sqm and the contrast is 1000:1 at a response time of 1 MS. The monitor is great for those who can't imagine life without computer games. In addition, he has wide viewing angles and uniform illumination. It is also considered an excellent choice in terms of a little eye strain.

If you want to change your old monitor, the tips above will help you decide which model suits you best.