Why doesn't my galaxy s4 screen display anything?

My Samsung galaxy s4 will suddenly not show anything on the display anymore. It vibrates and such as if everything but the display works. Sometimes it will flash something that looks a bit like part of the android guy, but it flashes so fast I cannot be sure that is what is it or if it just flashes.

I have tried the top solutions that my google search have led me to try:

-Removing the battery and holding volume up and home button for ten seconds. -Removing the battery and holding the power button for a minute and letting the phone sit for 5 minutes.

It is possible that the phone received a hit during the day that led to this problem but other people who have had this problem have not had it because of any hit or drop and I am therefore not 100% sure that any hit it may have received during the day caused this problem or if it is software related.

My question: Why doesn't my galaxy s4 screen display anything and how can I fix it?