What is white dot on ipad screen?

A white dot on an iPad screen can be caused by a dead pixel. A dead pixel is a pixel that is permanently off and appears as a dark spot on the screen. A white dot may also be caused by a stuck pixel, which is a pixel that is on and appears as a bright spot on the screen. In some cases, a white dot may be caused by a scratch or damage to the screen. If the white dot is a dead or stuck pixel, it may be possible to fix the issue by using a pixel-fixing tool or a screen replacement. However, if the white dot is due to physical damage to the screen, the only solution may be to replace the entire screen.