How does a dead pixel detector help identify screen problems?
A dead pixel detector is a device intended to assist users in identifying areas of a monitor, cell phone, tablet, or TV screen where the pixels are not working correctly. These tools show solid colors on the screen to make it easier to see if there are dead or stuck pixels that may not be noticed otherwise. A dead pixel detector test can be used to identify a display problem as being due to defective pixels or a hardware problem. Regular testing is particularly beneficial after buying a new screen.
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