Huawei p30 fallen on tile (screen broken, black, but cell phone still works)?

I dropped my Huawei p30 tile on it. It still works so the screen is only black. But my cell phone can still receive messages, the Google assistant still works, I think probably only the screen is broken. What do you think what's broken there? And what does such a repair cost? There's no crack or scratch on the screen, but it just doesn't work anymore

There's a cable that leads from the mainboard (I think it's so) to the screen. This could have been solved… Of course, such a screen is vulnerable. A cable from is called the screen off or with errors. But that's how it is with the technology… I guess the repair is 80-100 euro…