What is the test of pixels?
Pixels test is a test designed to evaluate the computer monitor monitor and high -resolution TV screen for the presence of pixel defects such as dead or stuck pixels. Each computer or HDTV screen consists of many of these pixels that can range from several thousand to many million. Pixels can come in the form of a program, a pre -recorded set of images, a website, or even a simple act of a person who carefully examines the screen in terms of defects.
Each pixel is able to produce a different basic color such as red, green, blue, cyan, purple and more. Pixels as a whole create a picture on the screen and a dead pixel usually appears as a small black dot against a white background. "Stuck" Pixel is the one that is fixed in one of its color states, so it does not have to manifest itself so easily against different color backgrounds. For example, a red stuck pixel that is unable to change the color of a white background,But it may be clearly obvious when the pixels that surround it are green.
The simplest type of pixel test is to scan the whole image with the naked eye and look for defects. In this way, it will be easier to see pixel jamming than dead pixels, because they are small, bright color spots. Dead pixels are almost impossible to see with the human eye and finding problems in moving images is virtually impossible if you don't know where the defect is. It is becoming increasingly difficult to increase the screen; Trying to find one dead pixel in the sea of 30 million others is almost impossible.
There are software programs for testing and finding dead and glued pixels, but they still require the human eye to search the screen to find them. The pixel test program will usually include the users of the examining screen while changing from one color to another. The Willjsem used ideal for finding a problem pixel. EThey also Xistory websites that offer similar tests and most of them cheap or free.
It is important to know what the test of pixels is, because most HDTV manufacturers and computer monitors usually do not consider several defective pixels to cover the warranty. It is up to the consumer to test the device before buying it, otherwise the defects may be an inconvenience that one simply has to live with. Sometimes pixels problems can be solved by other programs and techniques, but most of the time the dead pixels are permanent. As a result, shopping monitors and HDTVs from invisible sources such as online stores, without the previous pixel test.