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).

      • ColeSloth@discuss.tchncs.de
        link
        fedilink
        English
        arrow-up
        9
        arrow-down
        1
        ·
        7 days ago

        They can’t be behind the battery, though, so this can’t be it.

        They also can’t be that long and still work with any efficiency.

    • mrfriki@lemmy.world
      link
      fedilink
      English
      arrow-up
      10
      ·
      7 days ago

      Oh, I thought that OP was asking for the circular shape, the rectangular one looks more like some short of graphic showing on the screen. But maybe the circle is just the reflection of the flashlight?