What is the policy of dead pixels?

dead pixels policy is a set of manufacturer's rules on specific defects found in different types of monitors and TVs. These defects, known as dead pixels, occur when one or more of the smallest screen elements die or stuck. These problems move in severity; Dead pixels can affect viewing the image or can be virtually invisible. The main point of view in comparing one policy of dead pixels with another is whether the policy allows the facility to be returned, exchanged or repaired when a rather common problem occurs. The principles of dead pixels may also apply to products directly outside the assembly line, where they can be refused before they reach the consumer. In any image on the screen, each of these tiny dots will be in one particular Color status; Together they form the displayed images. Each pixel changes when the image changes, but sometimes one or more will not work at all. When this happens, it is called dead pixel; It is best considered to be a small black dot against a light background. Stuck Pixels are similar to dead pixels, except that the pixel is permanently turned on only in one of its color states.

Most of the principles of dead pixels treat dead or stuck pixels. In its most basic form, this type of policy protects the consumer from defective equipment if the amount of dead pixels on the screen exceeds the specified amount. This is often decided by the display class, which is defined by the total number of pixels, along with the quality and price of the materials used to produce equipment.

There are four classes of flat panel displays, despite IV; The higher class will be typically resulting in higher tolerance for dead pixels. For example, the policy of dead pixels for class I monitor allows no dead pixels at all. On the contrary, Class IV screen can have many defects and still consider themselves acceptable; This is largely due to the fact that a higher -class device will have more pixels, making it difficult to see the dead. Manufacturers usually adhere to ISO standards in the production of flat screen monitors, but they are also open to interpretation and can result in different quality levels between electronics manufacturers.

Anyone who buys a monitor will probably want their equipment to be completely free from defects. However, there are not many that can be done; The only way to actually test dead pixels is to let the screen into operation and perform visual checks. Intelligent consumer may check in advance whether dead pixels are a common problem in the required type of monitor; He may also ask what the policy of a particular dead pixel is before the Device.