i really like that. will be getting one to play BOTW2 when it comes out.
burn in isn't really much of an issue anymore. yeah it can happen but OLED tech has improved a lot. think how many smartphones there are that use OLED. if burn in was such an issue you'd have millions of people complaining about it. plus, Switch won't get as bright as most phones so that dramatically reduces the chances of burn in even further.
brightness is one thing that significantly increased chances of burn in. the current switch only runs at ~300nits at max brightness. the OLED i reckon would but about 400nits. smartphones are about 800-1000nits.
for burn in to start appearing, in worst case scenario (i/e trying hard to make it happen), it takes about 700 hours. when playing games at typical brightness if you start to see any burn in it could be after ~2000 hours but that's purely dependant on the game (if it has lots of bold static elements and/or uses a lot of RED). some games you could go ~9000 hours without seeing any kind of burn in. to put that into perspective:
- if you go out your way to try make burn in appear you could play through BOTW about 7 times before you see any burn in
- if you have automatic brightness on and play Persona 5 (which has a lot of bold static elements and red UI) you would need to play it 20 times before you see any burn in
- if you play a game like The Witcher 3 (with no bold/bright UI) you could play through it 88 times before you start to see any burn in.
OLEDs have various tech/methods to prevent burn in such as
- pixel shifting - moves the screen ever so slightly to even out wear
- ABL - lowers brightness on moving images
- ASBL - lowers brightness on static images
- pixel refreshing - changes voltages of individual pixels to match brightness/color of pixels near it
- logo luminance - detects static elements and lowers the brightness of them while keeping the rest of the screen at a different brightness