Macbook PRO 2017 touchbar - Screen won't turn on sometimes Sometimes when I open the lid of my MBP, the screen won't turn on.
No black screen - the screen is just completely off.

macOS is definitely running on the background, since I hear sounds, the touch bar is active, and I can use the caps lock key - the light goes on and off.

To get it working I close and open the lid again multiple times, until the screen comes up.

I wonder if this is a sign that I'll have a bricked MPB soon.
These symptoms sounds like a flimsy display cable issue - where backlight shutdown occurs after opening the display to a certain degree. 

If so, you'd unfortunately have to get your whole screen replaced. AFAIK, Apple only has a replacement program for 2016 MBP models despite it affecting later models as well. Best of luck.