Hardware help black spots on 3ds

[Narutoz8]

does anybody know whats wrong and how to fix it please

 

[Hking0036]

My bet's on dead pixels, your screen is screwed up, try and get a replacement or send it in.

 

[CheatFreak47]

Looks like your screen is just broke. Solution: Get a new screen or a new 3DS.

 

[forcefield]

I see 3 possibilities :

1- You closed the 3ds and there was something in between the two screens. The pressure may have damaged the upper screen.
2 - Dead pixels.
3 - It could also be water.

You could get a new screen or keep it that way if it doesn't bother you to play, check the other screen to see if it's responding correctly.