3DS Bottom Screen Question (cloudy looking)

Hello! I tried to search around and couldn’t find anyone with a similar problem with a picture. But does anyone know what could cause the bottom screen to look cloudy like this?

I haven’t taken it apart just yet as I was hoping to narrow down what could potentially be the issue before I did so. Thanks for any input!

So dumb, I guess I can’t include a pic to try and get what I’m conveying across. So any help is appreciated