Strange pattern on screen with light reflection

[Prinny]

Hi again!

I wrote a couple of weeks ago asking about a Xperia Z3+ faulty screen after a fall from my pocket. Well, I bought a display module and a service center replaced it. It's working wonderfully and the image quality is perfect. The touchscreen is working even better than before. I'm very pleased.

The thing is, I noticed that when I put the screen in certain angles and light reflects on the screen, I can see strange patterns, like little squares, dots and some waves. I'll attach two images trying to replicate the patterns I can see on the screen. I can tell one vertical pattern and one separate horizontal pattern.

So, my question is: Is the light reflection on the screen supposed to form such patterns? Is this normal or is it some kind of defect in my screen?

Thank you very much in advance.

[Uliwooly · Accepted solution]

@Prinny

That's normal, that's the digitizer

[CameronT]

As @uliwooly said, it seems like the digitiser, which is what detects your touch and turns it into input. You will notice it more when sunlight reflects off the screen. It would have been present on your previous display too.

Just to confirm, was it an official display you used or was it a third party?

[Prinny]

Thanks for your reply.

It's an official Sony replacement. I do remember the previous screen having some tiny dots, but maybe I didn't notice the whole pattern because I didn't pay much attention.

I'm glad it's a normal thing, because I love the new screen.