I wasn't talking about the OLED, but yeah Chine can produce a custom all-in-one some day, who knows...
I was talking about a older post from me that
Gammelstulle replied...
It's a custom LCD for the switch which is supossed to have much better visibility under light, better contrast...
https://www.aliexpress.com/i/4000117207935.html
Check the link. To me it looks like it's more like a smartphone LCD where the digitizer seems to be glued to the LCD it self and it's closer to the glass or at least I hope it's glass instead of the crap plastic from the original Switch assembly, they also claim to prevent dust which if it's glued it sure is dust proof.
ps: I can't find much info on them, if it made really a huge difference, it would be totally worth to buy one and improve the old Switch permanently...