Download the test program to a USB flash drive for monitors. Programs for checking the monitor (how to check the monitor for dead pixels)? Why do we test the monitor?

In the modern world, the lion's share of professions involves working at a computer. At the same time, regardless of whether the time spent in front of the monitor screen lasts for a couple of hours or far exceeds two-thirds of the day, it is important to take care of eye health by correctly adjusting the brightness and color rendition of the display. The same applies to spending time for entertainment. IN professional activity associated with the processing of digital images, the quality of display of colors, shades, and contrast plays a significant role, and the factory parameters do not always meet the user’s personal requirements.

TOP programs for checking and adjusting the monitor.

Here everything depends not only on the resources of the device and the use of its full potential, but also on individual perception, which varies, including changes external factors, such as the lighting of the room where work is being done and the environment for the propagation of light flux. Taking into account working conditions, as well as personal visual preferences, sensitivity to light, the monitor is adjusted.

You can make spending time at the computer more comfortable by regular means operating system, setting parameters is available from the Control Panel. Moreover, if the goal is to bring conditions closer to ideal, maximally adjusting them to your own requirements, it is better to use special software that offers a wider range of capabilities than standard tools. When diagnosing screens, programs help identify inconsistencies and adjust parameters to suit optimal values. Software that allows you to adjust the operation of the display has various functionality and can be useful to every user, regardless of the purpose for which the computer is used.

The task of setting up the display occurs both immediately after purchasing the device and after a certain period of use, since over time the matrix wears out and no longer displays colors as before. Sometimes the monitor comes with its own software with reference samples, designed for specific model, but there are also universal remedies. You can test the display and adjust its parameters based on the test results using special online services or software that requires installation. Software tools can be used to check the monitor for defective pixels, and also include their treatment if detected. Diagnostics performed in a timely manner will allow you to avoid future unpleasant moments associated with incorrect operation or complete failure of the device.

Multifunctional program for setting up your monitor. The software is distributed on a commercial basis, but there is a trial period. Ultra Mon options involve setting up and managing multiple displays at once; you can create and drag windows between devices, duplicate and move desktops, stretch the Taskbar across multiple monitors, create separate profiles, etc. Despite the scale of functionality, the program is easy to learn and not requires special knowledge from the user. Supports Windows 8 and higher, for earlier versions of the OS it is necessary additional customization compatibility for 16-bit applications.

Paid program for checking the monitor and selecting the optimal parameters. Allows you to test performance LCD displays,CRT devices (Cathode Ray Tube based) using a set of tests,includes the ability to detect dead pixels. The program has a simple interface, is easy to use and works on all versions of Windows OS with any support for resolution and color depth of the video card.

Free monitor testing program from Russian manufacturer with detailed background information. The product has decent functionality, allowing you to perform diagnostics various characteristics devices. Among the possibilities are checking the uniformity of illumination, legibility of image details, linearity and discreteness of the matrix, etc. There is also an option for detecting stuck pixels. The user is given a choice of display resolution.

A utility for checking the monitor and setting basic parameters from Nokia, which does not require installation and is equipped with detailed help information on working with the software. Although the name is a little misleading, the software tool involves checking the quality of computer monitors and video cards. Allows you to adjust contrast, color rendering, geometry and others key parameters. The utility is Russified and is freely available.

The program for setting the parameters of one or several monitors at the same time has excellent functionality, supports a large number of video cards, regardless of manufacturer, including those already “retired”. Combined with the convenience and simplicity of the interface, the program allows you to access 500 settings for the display and video card, and there is instructions on how to use all the features of the software. Power Strip detects all screen parameters and provides geometry correction, can change performance and clock frequency flicker. The program is self-updating and supports various operating systems. Among the disadvantages is a significant load on the memory and resources of the PC, the software is paid.

An easy-to-use multifunctional tool for simultaneous work with multiple monitors. Possibilities software product offer emulation on secondary displays of the Taskbar, Start button and other familiar Windows services. Supported preview, cloning the Task Switcher window on all devices, creating configurations in the form of Desktop profiles, instant navigation between them and many other options are available. The software is paid.

Free program for checking and repairing dead pixels on LCD panels. The interface is quite simple, so understanding the functionality of UD Pixel will not be difficult even for an inexperienced user. The operating principle of the software is to quickly change the colors of “stuck” pixels. The program does not provide a 100% guarantee of “resurrection” (like any other), but in most cases the procedure is successful. After testing and detecting dead pixels on the monitor, the user can select the color flicker speed and begin the recovery process, which, by the way, will take a lot of time. This fact will not affect the operation of the device in any way, but you will have to wait a bit with other settings.

Software for checking LCD TV or computer monitor for dead pixels, that is, those that glow the same color. Innjured Pixels software performs high-quality diagnostics, while not requiring installation on a PC, it is distributed free of charge. The utility can only be used for testing purposes; it does not allow you to resuscitate functional pixels. The positive thing is that the device can be diagnosed right at the point of purchase before purchase.

Similar to the utility described above this tool allows you to perform a procedure for checking LED and LCD monitors for dead pixels, without providing treatment. Is My LCD OK offers the user high-quality diagnostics with a decent set of tests, the software is completely free, no installation is required, and can be launched from any removable drive.

Another program that provides the ability to detect dead pixels. The software does not require installation and contains a decent set of tests for thorough testing. The interface is simple and clear, despite the fact that it is in English.

Since the human eye will not be able to accurately determine how incorrect the display image is due to the natural features of the structure and ability to adapt, it is advisable both when buying a new monitor and for the purpose of preventing the old one to use a special software, allowing you to identify defects in a timely manner and avoid unexpected expenses. Choice suitable software- it’s a purely personal matter, it all depends on the requirements for the program, the need to perform certain tasks and the convenience of the user.

Monitor testing programs invariably attract the attention of PC users. Perhaps among all information and diagnostic utilities they are the most popular. And all because every user will sooner or later worry about buying a new monitor. Simply choosing a manufacturer and model is not enough. According to the rules, when purchasing a monitor, it is necessary to meticulously test it, especially for dead pixels.

Why we test the monitor:

Monitor testing programs make the task of testing and adjusting a CRT monitor easier. Special test images (templates) make it possible to identify defects such as lack of convergence of rays for different colors, insufficient focusing and voltage stabilization, geometry distortions, low contrast, uneven glow of the phosphor, broken pixels. Having looked at several copies, we can select the one with deviations from standards are minimal.

LCD monitors require a different approach. All LCD panel based monitors cannot have problems with geometry, convergence, stabilization, focus, etc. And the spread of parameters is generally not typical for them, with the exception of “broken” pixels, which are still encountered, despite all the efforts of manufacturers. However, LCD monitors should also be tested. Just not different specimens, but models various manufacturers. LCD monitors differ significantly from each other in such parameters as viewing angles, inertia (afterglow and smearing), natural color rendering, color resolution, brightness and contrast, backlight uniformity. These parameters are either not indicated at all in the characteristics, or are measured using completely inadequate methods.

Despite the fact that LCD TV production technologies are constantly improving every year, there is still a risk of buying defective TVs with dead pixels.

That is why, before the transaction, you should diagnose the plasma display for the presence of such “surprises”. And today we will look at what program there is to check a TV for dead pixels and how you can use it.

A few words about pixels

A pixel is the smallest detail of a digital image or display matrix. It is an indivisible object of a round (usually rectangular) shape. It is the pixels that form the image on the monitor or TV screen.

The process of manufacturing plasma screens is very complex and labor-intensive, requiring high precision and expensive tools. LCD displays are used in almost all digital devices. These could be cameras Cell phones, laptops, PC monitors, TVs and navigators.

Crystals

Plasma TVs and LCD monitors are based on light passing through them, from which an image is then obtained. Often the outer layer of an LCD panel is made of glass. In this case, a thin-film transistor is placed between the panel and a layer of crystals with a backlight module inside. The latter can be either rear or side. While the TV is operating, light passes through a layer of crystals, which is instantly converted into a finished image.

Subpixels

The pixel itself consists of several subpixels (blue, green and red). With their help, an LCD screen can distinguish between millions of different colors and shades; the crystal molecule behaves like part of some liquid substance, that is, it is constantly in motion.

Diagnostic program on TV

On this moment There are two most popular utilities for diagnosing and checking LCD displays for “dead” pixels:

1. TFTTest.
2. DeadPixelTester.

They are quite easy to use. Below we will tell you how to check a TV for dead pixels from a flash drive with both programs.

So, we have a flash drive and the TFTTest utility. First you need to write down the required software package. It should include both the program itself and a separate archive with a set of color fills and gradients with a resolution of 1920 x 1080 pixels. You can also download a set of videos with which you can see how the TV perceives and displays a picture in 3D format and the quality of rendering (from 100 to 800 Hertz).

Next, install the flash drive into the USB connector of the TV. Using the remote control, go to the menu and connect the drive. Next, select pre-prepared color fills. Most often in the archives there are 9 such fills with yellow, black, white, green and other colors. We launch the utility and look through all the photos one by one. If there are defects on the LCD display, we will immediately notice them on the screen - they will differ in shade from the general background fill (or they will be automatically detected by a program for checking the TV for dead pixels). It is also recommended to check the quality of the reproduced sound and the contrast depth of the picture itself. This way you can accurately determine whether the TV is defective or not.

DeadPixelTester, a program for checking a TV for dead pixels, was also created to check LCD screens. Thanks to it, you can highlight any dubious areas of the screen with any of the colors suggested by the program.

To do this, a program for checking your TV for dead pixels will require you to select any color you like and check its display quality over the entire display area. If a dead pixel is detected, you can go to the window with 5 basic shades. This way you examine the suspicious area in more detail.

How much does a professional check for dead pixels on a TV cost?

Oddly enough, electronics stores can offer you professional TV diagnostics for such defects. There is nothing distinctive about it - all actions are similar to those you perform with your own hands. True, for this they will demand from you from 600 to 1000 rubles. To check it yourself, you only need a flash drive and Internet access, from where you can download the necessary utilities and color fills.

Dead pixels - is this normal or not?

In fact, manufacturers allow TVs with defects to enter the market, although their concentration per 1 million pixels should not go beyond a certain limit. first class does not allow the presence of such defects at all. Most often these are very expensive and rare TV models that are not very popular and in demand on the world market. The second class allows for no more than two type I and II defects per million pixels. This class is the most popular on the Russian market. The third class allows the presence of up to 5 dead pixels of grades I and II, as well as up to 50 of grade III. The fourth can contain up to 500 defects different types, however, such TVs have not yet been found in Russian stores electronics.

So, we found out how the screen is checked for dead pixels, as well as what is the norm for their content in various types of TVs.

Your vision and overall health directly depend on how high-quality the monitor you purchase and how you configure it. Besides, good monitor- this is the key to your comfortable and productive work at computer. So, you should not rush into choosing a monitor, but take it very carefully and seriously.

Never buy a monitor without seeing it in action, even if you are absolutely satisfied with all its specifications. Even identical monitor models that came in the same batch can be quite different from each other. In addition, not every monitor is capable of producing the characteristics stated by the manufacturer in the advertising booklet. And if you purchase a monitor from a company without even opening its packaging, and at home it suddenly turns out that it has some small image defects, then it will be very difficult for you to prove to the company that the monitor is faulty. After all, it is in such situations that company employees, as a rule, try to absolve themselves of blame and make every excuse by saying that small defects in the image on the monitor are within the acceptable limits established by the manufacturer of this monitor. To avoid this problem, you need to have your monitor tested by the company when you purchase it. Moreover, it is advisable to compare several identical monitors of the model you are planning to buy. Any self-respecting computer company should allow you to do this. If you are denied this service, you should, if possible, look for a monitor from another company.

To quickly test your monitor, follow these steps:

• With the help of some graphics program draw a circle. If the result is an oval rather than a perfect circle, then the monitor will serve you poorly when working with graphics or design applications.
• Type small text in 8-10 point font (1 point equals 1/72 of an inch). If the letters on the screen are blurry or there is a colored halo around black characters, choose a different monitor.
• Try increasing and decreasing the brightness and watch the image in the corners. If the image changes color or stretches/compresses, the focus is most likely lost when the brightness changes.
• Download Microsoft Windows and check that the focus is even across the entire screen. Are small image details, such as icons, still clear? Are the straight lines in the window title area becoming wavy or crooked? Monitors always have better focus in the center of the screen, and significant distortion in the corners indicates poor quality (not of an individual copy, but of a given monitor model). Distorted line shapes may be the result of poor video adapter performance, so don't neglect the opportunity to try this monitor with a different video adapter.

Monitor calibration

You can adjust the image on the monitor using free utility Monitor Calibration Wizard. With its help you can adjust the brightness, contrast, color channels separately. The changes made can be saved as a profile, which will be loaded after Windows starts.

There are several special programs, intended for testing the monitor. Especially many programs can be found in Internet networks. Some of them are quite sophisticated and not free, for example, the Display Mate program. It is absolutely not necessary to buy such a program in order to evaluate the quality of the future monitor. The Nokia Monitor test program is ideal for this purpose. Firstly, it is distributed on the Internet completely free of charge. Secondly, it is quite simple and easy to understand. And, besides, with the help of it you can very accurately assess the quality of your monitor and identify almost any possible defects in the latter. In principle, in order for the program to work, it will be enough to have only one launch file ntest.exe, its size is only 81 KB. You can easily save it on a floppy disk and bring it with you to a computer company, where the manager will meet you and offer to test a bunch of monitors. In fact, you should still arrange your visit with the company’s employees in advance in order to mentally prepare them for the fact that you will take up a lot of their time while you choose a monitor for yourself.

If you buy a monitor with a computer, be sure to test it with your computer. The fact is that the quality of the image on the monitor very much depends on which video card is used, so it is best to test the monitor with the video card with which it will work in the future. Secondly, before you start testing the monitor, let it warm up a little, at least fifteen minutes. The fact is that some defects in the monitor appear precisely after it warms up. And you simply may not notice them if you test a cold monitor. And also, set on the monitor you are testing the resolution, number of colors and frame rate with which you will work in the future. Typically, for each monitor, depending on its diagonal and model, there are recommended values ​​for these parameters. These are what most users usually use. By at least, I do not advise you to set too small values ​​for the above parameters for testing, because the monitor can perform well with them, but when installing, for example, a slightly higher resolution, the picture quality may noticeably deteriorate.

Run the ntest.exe file. The main test page of the program opens before us. Using it, you can already evaluate some of the parameters of your monitor. First, immediately pay attention to the image field. It should occupy the entire screen area, but not extend beyond it and should not be rotated. Next, evaluate the geometry of the entire image. Circles should be circles, not ellipses, both in the center and at the edges of the screen. Throughout the entire field, you should observe exactly squares, not rectangles, the lines should be straight and should intersect at right angles. Now about the colors: you should see all the shades of gray in the presented rectangles. If not everything is visible, turn up the brightness and contrast controls on the monitor. These two controls are typically mechanical dials on the bottom of the monitor, so you likely won't have to call up the monitor's electronic setup menu to adjust these settings. It's also good if you see smooth transitions of red, green and blue colors of varying brightness. In the same case, if they are slightly ridged, this means that the color depth of your adapter is set to a very small color depth (less than 24 bits). Simply set the maximum color depth, if possible, and the ribbing should disappear. This page also contains buttons for entering various tests of the program. By clicking sequentially with the left mouse button on each of them, we go directly to the various monitor tests.

First test: Geometry. This is one of the most important tests of the program. A grid with images of straight lines and circles opens before your eyes. With the left mouse button you can change the color of this grid, and with the right mouse button you can change the resolution. This is how the mouse works in other tests of the program. In this test, you need to concentrate your attention on the shape of the objects depicted in front of you. The main thing is that there are no very gross geometric distortions that could not be corrected by different monitor settings. However, when purchasing a new monitor, it is almost always possible to adjust geometric distortion using the appropriate monitor settings. Using the Geometry test, you can identify image distortions such as barrel, trapezoid, different linearity, and image rotation. Try adjusting the image to make sure the defect can be corrected. After all, for example, adjusting linearity is not possible on every monitor. Feel free to go through the menu items to configure the monitor; you won’t do anything bad for the monitor. No monitor has ever broken because of this. In general, it is advisable to configure the geometry for each of the possible monitor resolutions and save the resulting settings. This way you can make sure that your monitor allows you to save the settings you receive for each resolution. If this is the case, then you will not have to restore your monitor settings every time you change its resolution.

You should also pay attention in the Geometry test to the convergence (non-convergence) of rays. In order to check convergence in the Nokia Monitor test program, there is a separate test, but convergence can already be initially and fairly accurately assessed in the Geometry test. How to do this, and in general, what is convergence (non-convergence)? First of all, display a white grid. As you know, the formation of a color image in a regular monitor is carried out by mixing three colors in certain proportions - red, blue and green. Each color has its own dot on the screen. And the convergence depends on how accurately the electron gun hits the corresponding color point. And because white color is obtained as a combination of three primary colors, then if the rays are strongly mismatched, you can see on the screen instead of a white line several multi-colored ones, i.e. your supposed white line will shimmer. In this test, pay attention mainly to the edges of the screen. Typically, it is at the edges of most monitors that the maximum lack of convergence occurs. Do not be discouraged if you find misalignment on your monitor, the most important thing is that this misalignment is not very large and does not manifest itself in the form of a noticeable deterioration in the clarity and sharpness of the image, as well as colored stripes along the borders of the image or in the form of colored fringing of letters.

Second test: Convergence. This test is, in fact, an addition to the previous one. It can be used to directly detect non-convergence of rays. As a matter of fact, it was made precisely for this purpose. But the mechanism for detecting divergence here is somewhat different. So, in front of you is a screen consisting of straight lines. But each line is painted not in one color, but in three (green, blue, red). The boundary between straight sections colored in different colors, sharp. The essence of the test is that all lines should ideally be absolutely straight. And if there is misalignment in some place on the screen, then the segments painted in different colors will be shifted relative to each other. This is especially noticeable at the edges of the screen. Again, there are no perfect monitors, especially among amateur models, and the most important thing is that in the center of the screen the lines are absolutely straight, and at the edges the non-convergence is the least. If this is the case, then don’t bother yourself further with a little mismatch at the edges, but proceed straight to the next test. If your lack of attention manifests itself already in the very center of the screen, then you should immediately discard such a monitor and test another copy.

Next test: Resolution. In this test we will check how well the proposed monitor model copes with the resolution declared by the manufacturer. The fact is that many manufacturing companies use a trick, indicating in the monitor's characteristics the maximum resolution that the monitor's scan unit produces, although the monitor itself cannot cope with this resolution. By purchasing such a monitor, the consumer seems to be deceived. To prevent this from happening to you, check your monitor resolution using the Resolution test. Resolution is the number of dots per unit surface area of ​​a monitor screen, and is limited by the grain size of a given monitor. The clarity with which we can see fine details in an image depends on how high of a resolution a monitor actually reproduces. This test is especially important for those users who are going to use this monitor for graphics and for whom it is important that the monitor really supports the required high resolutions.

In front of you is a screen with alternating black and white stripes. With the left mouse button you can change the resolution, and with the right button you can change vertical lines to horizontal ones. The essence of the test is that each black line should be visually different from the white one. Those. you should observe a clear boundary between these lines. Another thing is that in reality the black lines will appear gray and the white lines will appear light gray. It's okay, as long as the border between them is visible. Particular attention should be paid to the test with vertical lines. It is in this case that, as a rule, the result is the worst, especially at the edges of the screen.

Next test: Moire. Moire is the result of natural interference. It appears on almost all monitor screens with cathode ray tube and occurs, as a rule, when using high resolutions due to the overlap of two grids. The first grid consists directly of the monitor grains, while the second is displayed on the screen. Moire appears differently on every monitor. These can be various opacities, or, conversely, clearings on the screen in the form of ridges, waves, streaks, mainly when displaying alternating contrasting lines. Moire can also appear as colored spots or streaks of various shapes. In general, a little moiré is not very bad, the main thing is that you do not see moire stains when the screen is illuminated in a single color, such as, for example, the work area of ​​many programs or just a working Windows table. In principle, many modern models Monitors have an anti-moire setting, which, by the way, does not always help. But if your monitor has such a setting, then you can try setting the screen to minimal moire. But don't overdo this setting, because... it can cause some areas of the screen to shake, which may ultimately be more noticeable than the presence of moire.

Next test: Brightness - Contrast. This is also a very important test, because... How bright and contrasting the image is will determine the accuracy with which the monitor will convey various shades of the image, and how comfortable the user will feel under certain lighting conditions in a given room. First of all, you need to adjust the brightness of the image. Brightness controls how black appears on the screen. You need to ensure that the overall background on the screen is truly black, but at the same time you can distinguish all the gray rectangles (1% - 9%). Here, if your image is too bright, then you will never see pure black on the monitor screen, but if the brightness is not enough, then you will not be able to distinguish some shades gray. In general, your task here is to find the golden mean. As for contrast, here your vision should be “thrown” to large peripheral light rectangles. By adjusting contrast, you, as it were, adjust the intensity of the light tones of the image in relation to the dark ones. In this test, you must ensure that the light rectangles are clearly distinguishable from each other at a normal level of intensity. Also pay attention to the white numbers indicating the percentages; they should not be too dim, but they should not ripple too much, otherwise your eyes will quickly get tired. In general, as a rule, the image contrast adjustment knob constantly has to be adjusted during operation depending on the lighting conditions of the given room. After all, you must admit that too contrasting an image on a monitor in a dark room “hurts” your eyes, and they quickly get tired. After adjusting the brightness and contrast (and this is best done in a well-lit room), pay attention to how much brightness and contrast margin remains. If this reserve does not exist or is extremely small, this is very bad. The fact is that during operation the monitor tube shrinks, the colors become duller and paler, and over time you will need to increase the brightness and contrast. And if this is not possible, then you will have to “enjoy” the dim image for the rest of your monitor’s days. If after setting you have no reserve in terms of brightness or contrast, then you should put this monitor aside and turn your attention to another one.

Next test: Focus. Monitor focusing is responsible for how correctly the image is focused on the monitor screen, i.e., ultimately, for how sharp and clear it turns out. In front of you is a screen with very small figures of various shapes located on it, which are depicted with maximum resolution. If your monitor has good focusing, you should be able to easily distinguish the patterns of all figures located both in the center of the screen and along its edges. Please pay Special attention to the figures located along the edges of the screen. Typically, monitors have the worst focus in the very corners. Poor focusing can be a consequence of, for example, poor convergence, which we discussed earlier, poor focusing can also be caused by setting the monitor brightness too high, or, even worse, a poor-quality shadow mask or aperture grille on your monitor. As a result of this test, you may find that your monitor is not focused enough at both the center and the edges of the screen. This, as a rule, can most often be corrected by certain monitor settings, or, as a last resort, in a workshop. In general, many modern monitors There is a function for adjusting the focus of the image, and you can try to adjust the focus directly from the computer company when purchasing the monitor. If you fail to do this, then I think that there is no point in buying a monitor with which you will need to immediately run to a repair shop. Most often, the user is unable to independently adjust the focus if the image in the center of the screen is quite clear, but at the edges it is very out of focus. It is best for you to put this monitor aside and turn your attention to another one. In any case, you won't see the same sharp image at the edges of the screen as in the center.

Next is the simplest test: Readability. In this test, you will see the inscription “fullscreen” across the entire screen, which will be in very small font. This test complements the previous one. And with the help of it, you can actually see how readable this inscription is in any part of the screen. Imagine that you will have to work in the future in some text editor or browse the Internet, and everywhere you will see such text. Assess how much strain you have to perceive it.

Next test: Colors. In this test you will be able to change the color of the entire background using the left mouse button. The screen will alternately be colored in all primary colors (green, blue, red, as well as black and white). Here, first of all, you have to evaluate how real and believable the colors are. Colors should be calm, monochromatic, they should not have poisonous shades and should not dazzle the eyes. But, in my opinion, only professional artists can correctly assess the correctness of colors. Although, in any case, you will be using the monitor, and only you can decide whether you like these colors or not. Ideally, it would be a good idea to compare the colors you see with some standard, for example, with the colors on a professional monitor. In this test, you should also pay attention to the uniformity of illumination of the screen with each color. The color should be uniform, its brightness should be uniform across the entire screen, there should be no light or dark spots, streaks, etc. on the screen. If, using this test, you still find a certain unevenness of screen illumination, look to see if there are any people standing next to the monitor acoustic speakers, whether there are any power wires passing nearby and whether there are any other sources of electromagnetic fields nearby. If there are such objects, then place them as far away from the monitor as possible, turn off the monitor, wait a couple of minutes until it demagnetizes, and then turn it on again. When you turn on the monitor, as a rule, the automatic demagnetization function always works. Some monitor models have a special demagnetization function, which can be accessed from the monitor setup menu. If it is, then you do not have to turn off the monitor in order to demagnetize it. Sometimes degaussing the monitor using these methods does not help solve problems. Perhaps in this case it is worth trying to demagnetize the monitor with a special device, which is available in any radio repair shop. Again, I don't think this is something you should do at a computer company when choosing a monitor; it's much easier to just get another monitor and test it. In addition, the cause of uneven illumination of the screen may not only be its magnetization; the reason may be, for example, partial burnout of the phosphor or some design defect of the monitor that cannot be eliminated. And in this case, all you have to do is abandon this monitor and test a new one.

The last, one of the most important tests: Screen Regulation. In this test, the screen starts flashing in front of your eyes, and the black color of the image periodically changes to white and vice versa. Take this test very seriously. The fact is that with its help you can identify some design defects in the monitor that can no longer be corrected by any settings. So, pay attention to the size of the image when changing its color from black to white. In fact, almost all monitors are designed in such a way that the same image, painted white, has larger linear dimensions than the same image, painted black. Those. As the image gets lighter, it seems to swell. This is noticeable in almost all monitors, especially the amateur class. The most important thing is that the light image does not differ very much from the dark one. And if during this test the light part of the image simply “goes” beyond the visible area, then such a monitor is definitely not worth buying. And you, without even a second of doubt, need to move on to choosing another monitor. This test is the last in a series of Nokia Monitor tests, and, indeed, it is advisable to carry it out last, because so that he can show real results, you need to warm up your monitor thoroughly.

The procedure for testing monitors has ended and you have found a suitable copy for yourself. Remember that of all the amateur-grade monitors, you most likely will not come across a single one that will flawlessly pass all the tests of the Nokia Monitor test program. With every monitor you will find some shortcomings. And here, rely only on your own instincts and intuition, deciding for yourself which monitor parameters are more important for you, and which monitor you should choose. If you competently and thoughtfully approach the choice of monitor using the Nokia Monitor test program, then on your desktop at home there will be the best monitor of all presented by the computer company.

Computer vision syndrome (CVS)

Most users, when working with a monitor for a long time, experience pain in the eyeballs, lacrimation, or, conversely, dryness and redness of the eyes. At the same time, headaches often bother you, and fatigue appears quickly. American scientists have discovered that all this may be a consequence of prolonged work with the monitor. Features of the display image is its high frequency regeneration (frame rate), relatively low contrast, and the fact that the monitor is a light source. The human central nervous system perceives all information coming through the eyes, but not everything reaches consciousness. A lot of unnecessary information, for example, flickering outside the monitor, can cause certain time fatigue. This reaction is aimed at distracting a person from some kind of work, forcing him to take a break, and then resume work with renewed vigor. Those who do not understand this risk constantly experiencing symptoms of computer vision syndrome.

It is known that sooner or later, all users experience CVD. The only difference is the time required before symptoms appear. There are minimum recommended requirements for the monitor in order to reduce this time to acceptable figures:

with a color screen, the number of colors must be at least 256; true color mode is considered optimal;
resolution 800x600 pixels with no flicker;
The grain size should be no more than 0.28 mm. The smaller the grain, the better;
Recommended screen size may vary for various works. For home users minimum size 14 inches diagonal;
The regeneration frequency must be at least 85 Hz. The optimal setting is considered to be maximum possible frequency, in the absence of flicker;
There should be no glare on the monitor screen. If it is impossible to change the lighting, it is necessary to use anti-glare screens;
When working with text, it is preferable to use white and black characters as the background. This combination has the least effect on the perception of the text.

Atrise Lutcurve
OS: Win2k/XP/Vista/7 To the website
Grade:5/5 - 1.7Mb
Shareware $25
This program will help you calibrate your liquid crystal display (LCD) or CRT monitor. Lutcurve uses the knowledge that the eye has a high sensitivity to neutral gray. The calculation of the test gamma patterns for which you will adjust the monitor is based on the mathematical relationships described in the article by A. Roberts, “Measuring the transfer characteristic (gamma) of display devices.” Atrise Lutcurve will allow you to correct even non-linear color display. This is especially true for LCD monitors. The number of calibration points is unlimited, so it is quite possible to achieve excellent results even on old monitors with a dead backlight. The program fully supports multi-display configurations. You can adjust the image different monitors to each other, so that the colors are the same everywhere. Atrise Lutcurve has a multilingual interface, including Russian among the supported languages.

CheckeMON
OS: Win9x/Me/NT/2k/XP To the website
Grade:5/5 - 189Kb
Freeware
CheckeMON is a utility for testing quality and setting up a monitor. It consists of 9 tests, including the test of color, geometry, convergence, etc. All tests are provided with a description. Also displayed brief information about the current operating mode of the monitor.

DDC Test
OS: Win95/98 To the website
Grade:4/5 - 138K
Freeware
This utility provides information about the monitor and its characteristics. The monitor must support Plug and Play.

Dead Pixel Tester
OS: Win98/Me/2k/XP To the website
Grade:5/5 - 188Kb
Freeware
Dead Pixel Tester is designed to check LCD monitor screens for dead pixels. The program allows you to fill the screen with different colors, run some other tests on the LCD screen, and also run the Stuck Pixel Exerciser, which will try to revive a faulty pixel.

EIZO Monitortest
OS: Win98/Me/2k/XP To the website
Grade:5/5 - 522Kb
Freeware
EIZO Monitortest is designed for thorough testing and tuning of monitors. The program has an original interface and includes 24 tests (including: color, moiré, geometry, clarity, brightness, inertia, etc.). Each test is equipped brief description. Supported interface languages ​​are English, German and Czech.

iiyama Monitor Test
OS: Win9x/Me/NT/2k/XP To the website
Grade:5/5 - 2.6Mb
Freeware
A program for testing and setting up a monitor from iiyama. It includes tests such as geometry, moire, focus, readability, color, LCD tests, etc. iiyama Monitor Test has a nice animated interface.

LSoft Testbild
OS: Win9x/Me/NT/2k/XP To the website
Grade:4/5 - 163Kb
Freeware
A German program designed for testing a monitor. It has the usual set of tests, a total of 6. The interface is on German.

Monitor Asset Manager 2.9
OS: WinXP/Vista/7/8 To the website
Grade: 5/5 - 699K
Freeware
Monitor Asset Manager is the successor to DDC Test, supporting the latest Windows versions and multi-monitor configurations. The utility provides detailed information about the monitor and its characteristics by accessing the monitor directly and without relying on data contained in the registry. The monitor must support Plug and Play.

Monitor Calibration Wizard
OS: Win9x/Me/NT/2k/XP To the website
Grade: 4/5 - 771K
Freeware
Monitor Calibration Wizard is a program for adjusting the color gamut and brightness of your monitor.

Monitor Expert
OS: WinXP/2k3/Vista To the website
Grade:4/5 - 600Kb
Shareware $15
A program designed for testing and setting up monitors, both LCD and CRT. Monitor Expert contains more than 10 tests, as well as a monitor information screen.

Monitor Test 5
OS: Win9x/Me/NT/2k/XP To the website
Grade:4/5 - 27Kb
Freeware
Monitor Test is a program for setting up monitors. Includes several tests to adjust beam convergence, focus, and image brightness and contrast. Has a Russian-language interface.

Monitor Test
OS: Win9x/Me/NT/2000 To the website
Grade:4/5 - 163Kb
Freeware
A Russian program with a Russian-language interface that allows you to check your monitor for color, geometry, screen resolution, etc.

Monitor Tester
OS: Win9x/Me/NT/2000 To the website
Grade:5/5 - 348Kb
Freeware
This program will be very useful when setting up your monitor. With its help, you can adjust the image size and position, color mixing and purity, balance white, brightness and contrast, focus, moire, etc.

Monitors Matter CheckScreen
OS: Win9x/Me/NT/2000 To the website
Grade:5/5 - 836Kb
Freeware
One of the best utilities for testing a monitor at the moment. It allows you to properly configure the monitor before testing, conduct tests of color, focus, geometry, power supply, etc. In addition, the program provides individual tests for liquid crystal monitors (LCD). Among them there are tests for blur, pixel quality, etc.

NEC Monitor Test
OS: Win9x/Me/NT/2k/XP To the website
Grade:4/5 - 152Kb
Freeware
This development from NEC is designed for testing monitors. It includes 14 different tests that can be performed in different resolutions and with different color scheme.

Nokia Monitor Test
OS: Win95/98
Grade:5/5 - 379Kb
Freeware
One of the few quality programs to test the monitor! You can contact her separately.

PassMark MonitorTest
OS: Win98/Me/NT/2k/XP/2k3/Vista To the website
Grade:5/5 - 1.3Mb
Shareware $24
PassMark MonitorTest allows you to run a series of standard monitor tests at various resolutions. The tests themselves and necessary permissions are set before testing, i.e. no need to switch manually. The program also provides some information about the computer's video system.

Philips Test Pattern Generator
OS: Win9x/Me/NT/2k/XP
Grade:5/5 - 3Mb
Freeware
Monitor setup program from Philips. It has an impressive number of different settings and test screens. It is possible to select the aspect ratio (4:3 or 16:9).

Pixel Persistence Analyzer
OS: Win9x/Me/NT/2k/XP
Grade:5/5 - 67Kb
Freeware
Very interesting program, designed for LCD testing. It allows you to compare the pixel inertia of different LCD monitors. It has several tests, a contrast adjustment function, an original interface, an entertaining game, and much more! Recommended to all owners of LCD monitors without exception!