black screen but still makes noise

So, this morning, I was playing Genshin impact, a game that takes up alot of space. It suddenly froze, and my first reaction was to turn my iPad off. Now it wont show the screen, but makes the charging noise, and makes a sound when I get a notification. Its still running but its on a black screen. My sister told me the lightbulb in the iPad might be overworked. Is this true? And if so, what do I do?