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Monitor

Monitor

A monitor (monitor) or display is a compact device for displaying images created by a computer's video adapter, i.e. converting digital (analog) information into a video image perceived by the user. There are several types of classification of monitors: according to the type of information displayed (alphanumeric and graphic); by structure (CRT monitors, which are based on a cathode ray tube); LCD monitors - liquid crystal monitors (LCD - liquclass crystal display); plasma, based on a plasma panel; OLED- monitor - based on OLED technology (Organic Light-Emitting Diode - organic light-emitting diode)). Monitors also differ by the type of video adapter, interface cable, device of use ... It is quite difficult to understand such a variety for an ordinary user who would like to purchase a monitor that matches certain characteristics. The matter is complicated by a considerable number of myths and misconceptions about various types of monitors, their quality and impact on humans. Which ones are true? How not to make a mistake and make the right choice? What is the highest quality and safest monitor? Let's try to find answers to all these questions, simultaneously debunking several of the most famous myths about monitors.

Cathode ray tube monitors are a source of radioactive radiation. This is not true. The radiation emitted by the monitor is electromagnetic and has nothing to do with radioactive radiation.

Liquid crystal monitors are completely harmless to the eyes. Unfortunately, there is no need to talk about complete harmlessness. The flickering effect of LCD monitors is somewhat less noticeable, but this does not mean that it is completely absent. Therefore, in working with both LCD and CRT monitors, you will have to take breaks in any case in order to protect your eyes from fatigue.

CRT monitors are hopelessly outdated; they are a “poor man's” product. In fact, there are CRT monitors, in terms of characteristics (and also in terms of cost), they are not much inferior to LCD monitors, and in some parameters even surpass them.

The best LCD monitors have a glossy finish. No, the presence or absence of a glossy coating does not affect the performance of the monitor in any way. The only difference is the mirror effect, which takes place both on the off and on the monitor, which does not improve the image quality in any way.

All LCD monitors are the same. Viewing angle, color rendering and other quality characteristics of the monitor depend on the type of matrices used. The most common and cheapest (respectively, not the best quality) is the TN + Film-matrix used in the production of 17-inch monitors. Hitachi's In-Plane Switching (IPS) technology provides excellent color reproduction, good for professional color work, but relatively expensive. For the manufacture of monitors in the mid-price category, technologies are used developed by Fujitsu (MVA (Multclassomain Vertical Alignment), which was a reasonable compromise between viewing angles, speed and color rendition) and Samsung (PVA (Patterned Vertical Alignment), which has large viewing angles at the worst response time).

LCD monitors have long response times. It all depends on what technology was used to create the monitor. For example, for PVA matrices, the time increases with the decrease in the difference between the final and initial states of the pixel (sometimes it can exceed 60 ms, which is completely unacceptable in dynamic games). The response time for TN + Film first rises and then falls. The most acceptable option is monitors created using MVA technology.

All LCD monitors have a poor viewing angle. This is not entirely true. The most noticeable drawbacks are the viewing angles of LCD monitors based on TN + Film-matrix. Disadvantages of viewing angles in monitors based on IPS, MVA and PVA matrices are almost invisible.

The contrast of LCD monitors is poor. Contrast, or the ratio of the brightness of white to the brightness of black, is one of the most relevant parameters of an LCD monitor, where an off pixel only dims the backlight lamp a certain number of times (while in a CRT monitor, a switched off pixel does not glow at all). Monitors based on TN + Film have the worst contrast ratios. Monitors on MVA and PVA matrices may well demonstrate, for example, a black level of about 0.1 cd / m2, and some monitors on PVA matrices reveal a contrast ratio of 800: 1.

LCD monitors reproduce colors worse than CRT monitors. This statement is true only in relation to cheap models of LCD monitors. More expensive models reproduce colors quite well and are easier to adjust.

LCD monitors provide low-definition images with a lot of distortion. Misconception. The LCD matrix has no geometric distortions, and the clarity of the above type monitors can surprise even seasoned users. But it should be borne in mind that such clarity can be provided by a monitor only in one resolution, when the video card controls each physical point of the screen separately (for example, for 15 "models this is 1024x768, for 17" and 18 "- 1280x1024). At lower resolutions the image will be somewhat blurry, smoothed.

If at least one cell of the screen is inoperative, such a monitor is defective and will not be sold. From the point of view of users, it should be so. But monitor manufacturers think differently. It should be remembered that two or three non-working cells are not considered a marriage, and such a panel may well be on sale. Therefore, when buying, check the monitor carefully.

A widescreen monitor is inconvenient to work with. In fact, this monitor was created precisely in order to facilitate the user's work. Judge for yourself: on a wide screen, you can easily open two documents for review at the same time, in the process of work, creating a workplace in the center of the screen, it is easy to place the necessary buttons, links, controls, etc. on the sides. In Photoshop, it will not be difficult to work on a picture with a resolution of 1024x768 at a scale of 100% with the panels open, etc.

Working with a widescreen monitor makes your eyes more tired. This is a misconception. After all, the visible horizontal zone for a person is larger than the vertical one, therefore such a monitor does not cause much more eye fatigue.

A widescreen monitor is inconvenient for gaming. This opinion is true if the user makes excessive demands on the image quality (which in high-quality widescreen LCD monitors is not much inferior to monitors with a conventional screen format) or the pixel response rate (persistence time). Indeed, some color distortion is noticeable from a certain viewing angle, but the player is unlikely to look at the monitor from below, from above or from the side. The aforementioned distortions can only appear if the pixel response time is more than 40 seconds. But the majority of modern LCD monitors have pixel response times of 30, 25 and even 20 ms, which almost completely eliminates this problem.

The widescreen monitor is the cause of hardware glitches. In fact, most often the above problems are not related to the monitor format, but, for example, with the failure to display POST information when the computer boots up or other similar problems.


Watch the video: Best Monitors Under $110 (October 2021).