Apple Support:

Apple has determined that, under certain circumstances, the screen on a limited number of iPad Air (3rd generation) devices may go blank permanently. A brief flicker or flash may appear before the screen goes blank.

Affected devices were manufactured between March 2019 and October 2019. Apple or an Apple Authorized Service Provider will service eligible devices, free of charge.

Note: No other iPad models are part of this program.

This program is very specific to these iPads only but if you’re affected, Apple has you covered.