@mistermemer your display is fused together with things like the touchscreen etc. So your optiglass may still be okay but the LED screen has obviously failed. Since they are fused, you would be looking at a complete display assembly. Your display is an AMOLED screen and yes, those are expensive. You can opt for a used one from places like ebay or some LCD screens from Aliexpress which go for around ~USD$200 etc. but otherwise you are looking at the USD$300+ range.