iPad Air 3gen Screen lights but no image

I have an iPad Air 3rd generation. The screen lights up, but it doesn’t display any image. When I activate VoiceOver, I can hear the sound, so the device seems to be working, but the display isn’t showing anything.

Here’s the twist: if I press the power button several times (causing the screen to turn on and off with each press), suddenly the display starts working again and everything functions perfectly.

However, once I stop using it and the screen turns off, the same issue happens again.

I’m not sure if it’s a hardware issue, since it works sometimes, or a software problem. I’ve already restored the OS using a Mac, updated everything, but nothing has fixed it.

Do you have any suggestions?