Screen black after home repair

FWI: the screen worked before the home repair. The only problem was the software was corrupted and showed a little symbol, so I am pretty sure that means the screen was working.

After the home repair, I got the laptop to boot from a usb and installed macOS on it, the whole time the screen was completely black. I was able to see what I was doing because I plugged it into a monitor. I have seen videos about a black screen and most of them suggested broken software/drivers/etc. I am nearly positive it has nothing to do with this because I was able to use the monitor.

I am pretty sure I know what the problem is. There is a connector (wide and flat) that connects motherboard to display. This connector is not damaged (most likely), but it connects to a tiny chip. On this chip, there are screw holes so that you can attach a flat plate of metal to secure the connector. I think I put the wrong type of screw which was too long into one of the holes. This caused it to lift up slightly along with a little of the pcb (it looks like). This may have damaged some of the pcb.

Do you think this could be why my screen won’t work? If so, can I just replace this tiny chip instead of the whole screen. If so, what part could I use and where can I buy it? I don’t really want to spend ~$400 for the enitre screen.

Do you think an expert at an ifixit store would be required fix this without replacing the whole screen?