long-term storage of 3.5" IPS LCD displays from handheld consoles is very complicated? Do they degrade rapidly at high temperatures of 34-38°C and humidity of 55-68%? Under these conditions, do their LEDs lose brightness, contrast, and color, and are the liquid crystals permanently damaged?
I don’t believe there are any storage concerns in those ranges, but ultimately the data sheet for your particular device will be the guiding light. That humidity does seem a little high from the standpoint of degrading solderability long term.
it sounds like you’re worried based on knowing about OLED displays, which definitely do have calendar aging degradation even in storage. Non-organic LEDs and LCDs don’t have the same problems.
i me reffer display 3.5” LCD IPS not oled: polarizer film, liquid crystals, leds