@deganash
Try searching on YouTube for a teardown or screen replacement video for your LG model monitor e.g type ''LG (insert model number) teardown'' or ''LG (insert model number) screen replacement'' in the search box of this [https://www.youtube.com/|link]
Sometimes you can be lucky and one is there. For example here’s one for how to disassemble a [https://www.youtube.com/watch?v=dlMphcRP_Zw|LG 34UM95C-P / 34UM95-P / 31MU97-B monitor]