Monitor

Monitor

(monitor) or display is a compact device for displaying images created by the computer’s video adapter, ie converting digital (analog) information into a video image perceived by the user. There are several types of monitors classification: by type of output information (alphanumeric and graphic); (CRT-cathode ray tube), LCD monitors (liquid crystal display), plasma ones based on the plasma panel, OLED- monitor – based on OLED (Organic Light-Emitting Diode) technology. There are also different monitors according to the type of video adapter, interface cable, device of use … In such a variety it is rather difficult to understand an ordinary user who would like to purchase a monitor that meets certain characteristics. The case complicates a lot of myths and misconceptions about the different types of monitors, their quality and impact on people. Which of them correspond to reality? How not to make a mistake and make the right choice? Which monitor is the best and safest? Let’s try to find the answers to all these questions, incidentally debunking some of the most famous myths about monitors.

Monitors with a cathode-ray tube are a source of radioactive radiation.

This is not true. The radiation emitted by the monitor is electromagnetic, and has nothing in common with radioactive radiation.

Liquid crystal monitors are completely harmless to the eyes.

Of complete harmlessness, unfortunately, one can not speak. The effect of “flicker” on LCD monitors is somewhat less noticeable, but this does not mean its total absence. Therefore, in work with both the LCD and the CRT monitor, you have to take breaks in any case, in order to protect your eyes from fatigue.

CRT monitors are hopelessly out of date, this is a commodity “for the poor”.

Actually, there are CRT monitors, in terms of performance (and in terms of cost), they are not much inferior to LCD monitors, and by some parameters even surpassing them.

The best LCD monitors have a glossy finish.

No, the presence or absence of a glossy coating on the characteristics of the monitor does not affect. The only difference is the mirror effect, which takes place both on the switched off and on the monitor, which does not improve the quality of the image.

All LCD monitors are the same.

This is not true. The viewing angle, color rendition and other qualitative characteristics of the monitor depend on the type of matrices used. The most common and cheap (respectively, not the best) – TN + Film-matrix, used in the production of 17-inch monitors. The Hitachi-developed IPS (In-Plane Switching) technology provides excellent color reproduction, is well suited for professional color work, but is relatively expensive. For the manufacture of midrange monitors, the technology developed by Fujitsu (MVA (Multclassomain Vertical Alignment), a reasonable tradeoff between the viewing angles, speed and color rendering) is used, and Samsung (PVA (Patterned Vertical Alignment), which has large viewing angles at the worst response time).

LCD monitors have a long response time.

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

All LCD monitors have a poor viewing angle.

This is not quite true. The most noticeable disadvantages are the viewing angles of LCD monitors on the basis of TN + Film matrix.The disadvantages of viewing angles in monitors based on IPS-, MVA- and PVA-matrices are almost invisible.

The contrast of LCD monitors leaves much to be desired.

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

LCD monitors transmit colors worse than CRT monitors.

This statement is true only in relation to cheap models of LCD monitors. More expensive models transmit colors fairly well and are easier to configure.

LCD monitors provide low-definition images with a lot of distortion.

Wrong opinion. Geometric distortions of the LCD matrix are completely absent, and the clarity of the image of the monitors of the above type can surprise even the experienced users. But it should be borne in mind that such a clarity can be provided by the monitor only in one resolution, when the video card controls each physical point of the screen separately (for example, for 15 “models it is 1024×768 mode, for 17” and 18 “for 1280×1024.) At lower resolutions the image will be somewhat blurred, smoothed out

If at least one screen cell is not working – such a monitor is defective and will not be sold.

From the user’s point of view, it should be. But the monitor manufacturers think otherwise.It should be remembered that two or three are not working cells are not considered to be a marriage, and such a panel may well be on sale, so when you purchase, carefully check the monitor.

A monitor with a widescreen screen is not comfortable to work with.

In fact, this monitor is designed just to make the user’s work easier. themselves: on a wide screen it is easy to open two documents for viewing simultaneously, in the process of work, creating a workplace in the center of the screen, it is easy to place on the sides the necessary buttons, links, controls, etc. In Photoshop, it is not difficult with open panels to work on a picture with a resolution of 1024×768 on a 100% scale, etc.

From working with a widescreen monitor, the eyes get tired more.

This is an erroneous opinion. After all, the visible horizontal zone for a person is more vertical, so much more fatigue of the eye such a monitor does not cause.

The widescreen monitor is inconvenient for games.

This is true if the user makes excessively high demands on the quality of the image (which in quality large-format LCD monitors has little to do with monitors with the usual screen format) or pixel response rate (afterglow time). Indeed, some distortion of color is noticeable from a certain viewing angle, but in fact the player is unlikely to look at the monitor from below, from above or from the side. The aforementioned distortions can appear only at a pixel response time of more than 40 seconds. But after all, most modern LCD monitors have a response time of pixels of 30, 25 and even 20 ms, which almost completely eliminates this problem.

Widescreen monitor – the cause of “glitches” of equipment.

In fact, most often the above-mentioned problems are not related to the monitor format, but, for example, not displaying POST information when the computer boots up or other similar problems.

Add a Comment

Your email address will not be published. Required fields are marked *

We recommend reading a new article. Open
Found a mistake in the text, or other problem? Please let us know. Thanks. Leave a review
x