The display for the phone is blank, but the phone still works
So I'm walking from one building to another, and the there is a slight drizzle outside (not a lot of rain) so I take out my phone for a quick second to check some messages and put it back into my pocket. When I get into the building (about 5 minutes tops) the display is black, but the lights on the bottom of the phone turn on, and when I do my pattern I can unlock my phone. So the phone still works, but the display is black. Any tips? also I don't know if the Galaxy has a reset like an iPhone does, so if you tell me I need to reset it, please tell me how to do so. Thank you for the help