thanks for the tip!
so i also tried looking in the hardware ID on device manager + moninfo.
i still can't find what's the sub model = LG LP156WF6 - (SP)(B1).
1. are there any other software available?
2. i thought about the led as well, but i don't understand how critical it is.
generally what kind of significant differences can be between 2 units of the same panel?
3. any ideas if its possible to compare between the old screen (i don't have it) and the new one?
this is the information i have for the old one:
(from the sticker on the back):
data string: c3mwme156wf6 [*CP437]
edid revision: 1.4
plug and play ID: LGD046F
manufacture date 2014, iso week 0