Just switch to the dark theme (like you should have anyway) and you'll never notice this again.

 

I had this issue on my original 3ds it was the bottom screen while the top was more of a cool temp like the pic but it eventually went away. I don't remember exactly when just noticed one day while playing fantasy life it was back to normal.

 

All Switch's r suppose to be IPS across the board

 

This seems likely. They're all IPS, but color temperature is still a toss-up until/unless they unify manufacturing components. Thankfully I got the cooler temp.

 

@The Real Jdbye Is this something I can make go faster? e.g., leaving the system on 24x7 for the first week or so? thanks!

 

I remember when some 3DSs were doing this. As I recall many of the O3DS XL's had the yellow tint to them. I believe it was due to them using a different type screen or something like that. I feel fortunate that neither my original 3DS or N3DS XL or Switch have ever had this effect going on. I don't know what Nintendo's deal is at a manufacturing level, but really they need to standardize everything and keep it consistent. Its incredibly frustrating as it is that when you get a N3DS, you can't tell until you play it if you have TN or IPS screens or some combination of both. That simply shouldn't be a thing.

 

Definitely looks a lot better! You are probably right which is exactly how it happened with my 3ds.

 

I like the bottom one but mine came like the top which is too bluish for me.

 

I've seen this in phones time and time again, this doesn't have anything to do with adhesives, it's perfectly normal. Fresh screens show a warmer temperature for a couple of days/weeks. People always freak out about that.