Sister was messing around with a UV light and noticed this on her phone screen under it. My phone does not have this (all I get is a grid of dots I'm pretty sure are to do with the touch screen).
this post was submitted on 01 Jan 2025
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What is this thing?
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Might be the glue holding it in place.
OCA (optically clear adhesive) is spread as a thin layer between the digitizer and display. Any gaps would be easily visible with the naked eye.
Also, it’s cured with UV, but I’ve never seen it fluoresce.