My Ipad have 1 dead spots on ipad pro 11' 2020

As described and illustrated, you may have a “stuck” or “dead” pixel. If your iPad is new, or nearly new, contact Apple Support and request replacement. The link to Contact Support is at top-right of this page.

Stuck and dead pixels are a display-panel defect that cannot be remotely diagnosed - requiring a visual inspection to correctly diagnose. As the Apple Stores are all currently closed, visual inspection isn’t possible.

If it is (and I think it should be) still covered by warranty, contact Apple Support directly and ask there:--> iPad - Official Apple Support

Regards

Giulio

Visual inspection is necessary - as most manufacturers have a specification that determines when a display panel is considered defective.

The number, position and type of pixel defect(s) produce a threshold “score” - this score being the determining factor as to whether the display panel is considered defective and eligible for warranty replacement.