My screen gets hot

Warm yes. Scorching no. The processing unit is up near the top of the phone, so if you're doing something that takes a lot of processing power, the phone can heat up which is normal. It's not normal for the phone to be too hot to touch or put up to your ear however.
 
No no no, it's never been that hot. Ok, thats fine. I was just concerned. I'm guessing that if it is gettting warm like that, that it wouldn't be good to let it stay that way for long periods of time since heat isn't good for electronic parts?
 
No no no, it's never been that hot. Ok, thats fine. I was just concerned. I'm guessing that if it is gettting warm like that, that it wouldn't be good to let it stay that way for long periods of time since heat isn't good for electronic parts?
Its fine built for long periods of heat.
I use Telanav with display on , HBO GO for long periods of time no harm done