Faint white lines on edges of 6s screen?

Anyone else have this on their phone? Really only visible when there's a dark image on the screen. It started a few months ago and doesn't appear to be getting worse, but it's there. My phone is out of warranty, not that this really effects it's usability. Anyone?

 

I'll try and post photos when I can. It's definitely not screen bleed, though.

 

It's very, very faint. Unless I'm using something that has a very dark background near the edges of the display, like Spotify, it's not even noticeable. But I've heard this happens to LCD screens somewhat frequently. Not sure. I was just curious if anyone else had experienced this. It's so minor I don't think it would even hurt the resale value of the phone to be honest.

 

Interesting. Elaborate on this, please?

 

I've made no moves just yet.

 

I looked it up. I have no bulging or anything on my phone, so I don't think it's that.

 

No distortion whatsoever. I'll get a pic up.