Put your serial number into https://parts.hp.com/ and look up the available parts. Lenovo will give you exact matches for your machine, and matches for the machine type. If HP does the same for your machine just look for the OLED display assembly.
If you want to save money get the part number for the OLED display and put it into ebay. You'll probably a whole display assembly and not just a panel. Touch screen displays tend to have different assemblies from non touch devices, ad OLEDs sometimes have different assemblies from their LCD counterparts.