Monitor: check for broken pixels when buying

When buying a monitor, checking for broken pixels - the procedure is not superfluous. What is a "broken pixel" and why should it be checked? For buyers who are far from the intricacies of production and performance of LCD screens / monitors / televisions all this sounds unusual and incomprehensible.

The LSD monitor consists of small dots (pixels) that reproduce light and color. A broken pixel is a defective pixel that does not work properly. It either does not work all the time (black dot), or it constantly burns with the same color (white, blue, red or green) regardless of the color of the image. Checking for broken pixels allows you to see the purchase before the purchase and ask the seller to replace the defective product. Ignoring the check allows some unscrupulous sellers to realize deliberately defective goods to inexperienced buyers.

Check the monitor for broken pixels - in fact, an absolutely easy and simple procedure. It's true. It's enough to have a flash drive with you when you buy a program to check for broken pixels and a few seconds of time to start this program. Having installed the program in a few minutes you can see what exactly you will pay your blood. As a rule, any seller, who values his reputation, will not interfere with the verification procedure.

A few words about what the program should be. To check for broken pixels there are mountains of software. He works extremely simply. After installing and running the program, the entire area of the monitor glows in one color. Checking the monitor for broken pixels is simply pressing the left / right mouse button. This press changes the color of the monitor. When changing colors, you can see defective (broken) pixels.

There is no point in enumerating all existing programs for testing broken pixels. Any search engine for the query "check for broken pixels program" will produce several hundred pages, which have links for download. Choose any, download, test and then throw on the USB flash drive. In the store, she will provide you with invaluable help, save money, time, a lot of nerves.

Why is it important to check up BEFORE buying? After all, there is a law on the buyer's side, and the goods can be returned or exchanged by law. Yes it is. However, the seller is not always willing to exchange, referring to the ISO 13406-2 standard, which allows a certain number of broken pixels and this is not considered to be a marriage.

The most interesting is that this is true. This standard prescribes the characteristics that an LCD monitor should have (brightness, color, uniformity of illumination, etc.). One of the parameters is the acceptable number of defective pixels. "Spot" - no more than two defective pixels, 17-19 inches - no more than four, 21 inches and more - no more than six.

Manufacturers of LCD panels are naturally familiar with these figures. And, based on this, there is a division of LCD matrices into quality classes: the first class does not contain any broken pixels, the fourth one allows 256 defective units. Please note: brand manufacturers do not produce monitors lower than the second class. Accordingly, "no-name" products can be of any quality. Check for broken pixels in this case is simply necessary.

While your money is still in your pocket - the seller will make every effort to do you well: tell, show, test along with you, replace (if necessary) or pick up another model. But as soon as you paid the money and took away the goods - the degree of tenderness rapidly falls. You can not recognize the dearest seller. In the course can go deliberate distortion of information, a free interpretation of regulations and acts, links to non-existent documents. To restore justice, you need to butcher stubborn "managers", and even after that, it (justice) can not always be restored.

Checking for broken pixels is not a whim. This is a justified necessity, which will help make and purchase and further use of the monitor as pleasant as possible.