Screen issues, anyone seen this before?

For a couple weeks now my phone will spontaneously have the screen go out and just as randomly start working again after some duration of inactivity.



So far I've made sure that I haven't installed any new apps in that timeframe. Phone is working fine. During these 'episodes' I've tried soft and hard reboots with no change (but the screen is working).

Has anyone seen this before? The phone has never been cracked open, but is it possible the cable to the LCD came loose? I feel like I may have seen a screen do something similar long in the past. Looking to try and find a known fix or possible options before popping it open if I can.