I've got the same issue on my 2012 MBP w/Retina. Run this terminal command: ioreg -lw0 | grep "EDID" | sed "/[^<]*</s///" | xxd -p -r "LP" followed by a bunch of number is LG and "LSN" is Samsung. Supposedly second-gen LG displays are all good now, but who knows. I'm typing this on a friend's machine (same as my ghosting one) and hers has and LG panel with no ghosting (yet). Mine is also an LG panel. Mine ends in SJA1 and hers in SJE1. Maybe she has second rev. Don't know. Supposedly there have been reports of Samsung ones also having the image retention problem, but the vast majority sound like it's LG (first rev? second rev?). Hope this helps. Better late than never?

Hi Philipp, That cap is a Wifi/Bluetooth cap on VCC_Main. I don't think it's related to your screen issue. iPhone 6 water damage is likely to blame for the damage to LCDs. I'd check C1505, C1530, C1531 (usual culprits) as well asd D1501 and L1503. Sorry for late answer.

LOCA is most often used here for glass-only repairs.