My iPad mini has lines going horizontally across screen?

I came home and I turned it on and it randomly had the lines on it. The background is black and my iPad only responds when I turn it on. I tried hitting it in the back, but that just made a red line fade away. Help! I don’t know what to do at this point,I came home and I turned it on and it randomly had the lines on it. The background is black and my iPad only responds when I hold the power button. I tried hitting it in the back, but that just made a red line fade away. Help! I don’t know what to do at this point