I’ve got a 3.5" touchscreen from an HP Printer model # LTV3500QV. It looks like it has the exact same physical connector as the GHI supplied 3.5" touchscreen LCD. I’m wondering if anyone else has tried such a thing, or if someone might know if it will work. I’ve attached a photo as well.
If it is the same, you still need backlight circuit.
Compare datasheets for compatibility.