iPad mini screen is black with horizontal lines
My iPad mini has had a broken screen for a while, and yesterday I lost it again. At first glance, after I picked it up from the floor, there was no problem, until a few minutes later, when I was working, I noticed that the screen went black and a flat horizontal bar at the top of the screen lit up, and with the pressure of my hand and the area I press, these lines appear at the top, middle, and bottom of the screen. Yesterday it didn't take long for it to be fixed again, even though I put the iPad on the table and was doing something else. But today, several hours have passed and I still haven't been able to see the screen.
What is the problem and how much does it cost to repair?
iPad Air, iPadOS 26