Screen flickering / blinking

[Adam Alfares Abednego]

I have Lenovo y510p, its already 6 months

the problem is my screen is flickering when in darker background, when i go to page that full of dark backround the screen is flickering

check this video for the flickering example

Video Link

 

[Plusthinking Iq]

many time this is laptop heat, check that first. maybe some of the connection from the monitor to case, the joint is causing bad connection or something.