Thank you man for your tips,

Today I tried to isolate the possible problem removing the 16gb ram, leaving the integrated 8gb ram, I booted and screen was just black , maybe the integrated ram was faulty idk, I inserted again the 16gb ram and it booted but there is always the pink problem.
After I opened the whole laptop and checked the other side of lcd cable disconnected and reconnected again and it was well connected, haven't found any burns or discoloring inside.
I opened again the monitor frame to check the cable it looks well connected.
I've already done driver roll back and update. nothing worked.
I've enough for today I won't touch or open laptop for a while, I will have to see what do. Maybe extreme solution is to hook lappy via hdmi to another monitor I don't have in this moment.