Display colors washes out after seconds of inactivity while playing videos:

[FAHMI BASSEM]

I have noticed that the colors of my notebooks' display get washed out after seconds of inactivity while watching Netflix or Youtube on MyTube app, with two distinctive bars on both sides, blue and red.
YouTube but not Netflix works just fine on the new Edge.
Note this happens on both battery and while plugged in.

All drivers and software are up to date!

What do you suggest?

Thanks in Advance...