this post was submitted on 01 Jan 2025
123 points (97.7% liked)

What is this thing?

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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).

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[–] [email protected] 211 points 2 weeks ago (3 children)

All glowing unknowns under a UV light are considered Cum unless proven otherwise

[–] [email protected] 29 points 2 weeks ago (1 children)
[–] [email protected] 2 points 1 week ago

Their sister's cum.

[–] [email protected] 12 points 1 week ago

"Oh man, it glows?"

-WKUK

[–] [email protected] 12 points 2 weeks ago (3 children)

is making sure the internal Cum is perfectly shaped a desirable job at the factory, i wonder?

[–] [email protected] 9 points 2 weeks ago

The real desirable job is the guy who gets to cum in phones

[–] [email protected] 6 points 2 weeks ago

That's just from setting the glass. Totally natural phenomenon.

[–] [email protected] 2 points 2 weeks ago

Depends, are you at the phone factory or the cum factory?

[–] [email protected] 55 points 2 weeks ago (3 children)

Not sure what it might be but shape and position match those of the wireless charging coil.

[–] [email protected] 34 points 2 weeks ago (2 children)

That wouldn't be behind the screen nor rectangular

[–] [email protected] 22 points 1 week ago (1 children)

Charging coils can absolutely be rectangular.

[–] [email protected] 8 points 1 week 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.

[–] [email protected] 10 points 2 weeks ago (1 children)

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?

[–] [email protected] 4 points 1 week ago

Yes, the circle is light from a light source...

[–] [email protected] 14 points 2 weeks ago

Wouldn't that be on the back side of the phone though? I suspect the battery would be between the coil and the display, making it impossible to see from this side under any kind of light.

That said, I donno WTF we're seeing.

[–] [email protected] 3 points 2 weeks ago (1 children)
[–] [email protected] 6 points 2 weeks ago (1 children)
[–] [email protected] 5 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Pretty sure it was Mrfriki's guess.

[–] [email protected] 1 points 1 week ago

They might have posted first but ShepherdsPie actually realized it first. I was there.

[–] [email protected] 44 points 2 weeks ago (1 children)

Might be the glue holding it in place.

[–] [email protected] 18 points 1 week ago

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.

[–] [email protected] 27 points 2 weeks ago (1 children)

What model phone, it might be the fingerprint sensor?

[–] [email protected] 7 points 2 weeks ago

What I wondered, but double checked pixel 8 and 8 pro specs and it just has a normal sensor area towards the bottom of the screen.

[–] [email protected] 24 points 2 weeks ago* (last edited 2 weeks ago)
[–] [email protected] 12 points 2 weeks ago

Does she have a screen protector? Can you see the shape at all without uv light? My guess would be an air bubble under a screen protector, but that would be visible under normal condition, sometimes it could be hard to see.

[–] [email protected] 8 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Backlight LCD screen perhaps? And if you have an Oled screen, that might be why you're not seeing this on yours? I don't know for sure tho...

[–] [email protected] 8 points 2 weeks ago (1 children)

I have a Pixel 8, and the one in the picture is an 8a/8pro (can't remember which).

[–] [email protected] 5 points 2 weeks ago

I think all Pixels have Oled, so i guess i'm wrong here... It is interesting for sure!

[–] [email protected] 2 points 1 week ago

Here's mine (Xiaomi Mi 10):

It has no screen-protector. It does not emit blue light from the glass edges. In the center I think it's slightly bluer than the rest of the screen. It is an amoled screen. Hope this helps somehow.

I dont know if they stick the glass with uv glue, they tend to do that with screen protectors for screens with curved edges, so that the protectors sticks better. Maybe it's the glue reacting.

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