Can UV-C sterilizers damage phone screen?
Will UV-C sterilizes like phone soap2 eventually cause damage to the OLED screen on iPhone X?
The usage information for the iPhone X OLED (and other models using LCD) repeats the advisory not to use any cleaning fluid on the phone. This also applies to all display products because of their oleophobic coating fused to the glass. We learnt this from the retina display #Staingate incident and recall. More recently, my iPhone X developed suddenly an unexplained smudge below the coating suffice and this is still pending apple's review.
I don't use anything except water on microfiber cloth to wipe phone display, but the apple store uses Whoosh. On my previous LCD iPhones and MacBook Pro, and iPad Pro, I have used the Fellowes screen cleaner. But generally, it's not recommended that any cleaning fluid or chemicals be used to clean or sterilise the display surface. I can't imagine how UV-C as a form of germicidal irradiation should be used on the phone but it should not affect the phone's coating which is fused to the glass. UV-C generally affects cell nuclei and hence effective as a germicide and may not do anything to the phone in that respect.
