I came across this
It is a few months old now, and I have no idea how speculative it is.
A few things I noticed, at least according to the author,
Samsung is using LITI for oled in handheld devices and intends using SMS for the large flat panels. They look to be very different processes, and looking at the cons found in table 2, I noticed one of the cons for LITI was "Reduction of organic age" which I assume means a shorter life span.
Another thing I noticed was this quote about LG's process
This approach uses red, green and blue light emitting layers without patterning. The sub-pixels are created by a unique color filter with an R, G, B, W pattern. To overcome the ~50% light blockage from the color filter, LGD uses a tandem stack, which doubles the number of light emitting layers.
which to me implies 6 emitting layers (2 each of R,G,B). I'm not sure why 3 thicker emitting layers wouldn't do the same thing.
LITI: Laser induced thermal imaging
SMS: Small mask scanning