All the old tricks in terminal just give "Colour LCD" Used to give you the serial number which you could then Google....No luck I'm afraid.
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A word about battery life here too. I know that it comes out on top of the list for battery hours, but I've been using the newbie on battery power for 4 hours now...Nothing intensive, but I still have 50%. Very good considering the retina screen. Makes me even more confused as to why MS can only get a measly 3-4 hours out of their "Surface Pro" I'm guessing I'll get around 6-7 hours in light use. That's impressive.
I guess just try to do the Checker broad test, i did the same thing on the 15"
in my first test with an LG screen, the IR was there after the 1st test it was noticeable, then i return that and got a 2nd one and it turned out to be a Samsung screen, ran the test a few times and nothing, no IR.
did the same with my 13" ran the same test, same way as the 1st two, and no IR, ran the test a few times too