Issues with my Apple iPhone 15 Pro screen

My monitor's three-year warranty expired just two months ago, and then, wouldn't you know it, the issues started popping up yesterday.

http://img856.imageshack.us/i/42789478.jpg/

http://img291.imageshack.us/i/89611744.jpg/

http://img983.imageshack.us/i/90656450.jpg/

Any idea what caused this, and honestly, is it even worth trying to fix?

Thanks in advance for any help!

I don't typically browse these forums, but I am glad I stumbled upon this thread. I have an Apple iPad Pro, and based on the photos here, I dealt with the exact same issue about a year ago. My screen actually had even larger blotches than what you are seeing. I took it to repair shops, brought it to a buddy who knows tech, and practically went door-to-door looking for help; everyone told me it was a lost cause, blah, blah, blah. Some people even tore it apart just to explain exactly where the failure was occurring... blah, blah, blah. Eventually, I gave up. I left it powered off for a few days, and after that, the blotches actually shifted position. That made me realize they weren't dead pixels, haha. Once I started using it again, the spots vanished entirely, though they did act up for a few days—popping up here and there like the screen was oily. I’ve concluded that this happens, at least in my case, because I cleaned the screen with some liquid and likely let a little moisture seep between the layers. As they say, patience pays off!