Optimus IX 4k panel model?

Hi, new to the forum and looking at the Optimus IX with the 4K panel option but was wondering if anyone knows the brand and model number of the 4k panel as I can't seem to find the answer online? Will PCS be able to answer this if I contact their sales team directly by phone?

Cheers

If you click the (?) next to the screen dropdown menu in the configurator it brings up this:
https://www.pcspecialist.co.uk/form...tegory_id=84&&info_type=8&&orderno=0&&review=

Which says: Screen ModelLP156UD1-SPB1 or Samsung LTN156FL02

for the 4k panel