Dead pixels which are just dimmer than usual is okay, some variance is expected. But if a monitor has that kind of dead pixel that's stuck displaying a bright w

Dead pixels which are just dimmer than usual is okay, some variance is expected. But if a monitor has that kind of dead pixel that's stuck displaying a bright white or green or something even when the rest of the screen is black, the screen is 100% defective, whatever the manufacturer's QA standards might say.