Broken pixels on the monitor. Description of the problem and methods of dealing with it.

In our time, any user of modern household and computer equipment, the phrase "broken pixels" does not cause anything other than headache and bad mood. But what is it really, and how much is it terrible, to be a "happy" owner of technology with these most beaten pixels?

For starters, let's look at the principles of modern TVs and monitors. Liquid crystal displays form an image with a set of points, which are called pixels. When they change their color, the image on the screen also changes, and we see the image formed of these dots. In modern monitors, a matrix is installed, called active, in which a separate thin-film transistor is responsible for the control of each pixel (that's why such screens are called TFTs, from the English Thin Film Transistor). If one of these transistors fails for any reason, we can observe a phenomenon called a broken pixel on the monitor.

Due to technical failure of the transistor, such points do not change their color during the change of the image on the screen and represent a black point. Although it should be borne in mind that broken pixels can be not only black - on a black background this point is usually white, and also there are red, blue and green broken pixels. Such a malfunction in our time can be fixed in a specialized workshop. To do this, it is necessary to replace the corresponding failed transistor, and it will again be able to perform its functions.

But it happens that the broken pixels on the monitor are formed not because of the output of the transistor, but because of the so-called jamming of the points. Usually a jam is accompanied by the appearance of a light dot on a dark background, which does not change its color under any circumstances. Such a defect, in contrast to the "black point", you can try to fix and at home with the help of some physical or program manipulation.

It should also be noted that the world's leading manufacturers are now setting special standards that allow a certain number of faulty pixels in the matrixes of monitors of different standards. This is due, first of all, to the fact that the percentage of rejects among matrices working on liquid crystals is quite high. This nuance should be paid attention in the event that you are going to contact the repair shop for warranty. The table of acceptable defective pixels is included in the standard, which is called "ISO-13406". It can easily be found on the Internet on the sites of many leading manufacturers of LCD monitors.

Many users often have a question: how difficult is it to see broken pixels with the naked eye? It is unlikely to answer it unambiguously. This is due to the fact that when you buy a monitor, sellers very often show us bright, changing images, not allowing you to properly view the display in different monophonic backgrounds. For example, it happens that a defective point of red color can be seen only on a green background, and even then with a certain shade. Therefore, you should check your purchase very carefully. This can be done with the help of special programs. One of the best such utilities is Nokia Monitor Test, which allows you to test the monitor for various defects, readability, moire and damaged pixels.

Do not forget that the so-called stuck broken pixels (not black dots, and color), you can try to "cure" at home. For this you can use both special programs (one of the best such utilities is called "ScreenFix Deluxe") or try to massage the defective area of the display with a cotton swab. The main thing, during this "massage" is not to overdo it, as the chance to further damage the display or its anti-reflective coating is quite large.