You have an inverter or backlight issue if you lappy is still under warranty it is a simple repair
the link explains more...
If it is not covered by warranty your nearest highstreet computer store should be able to fix it for you...
Surface Pro (2017) vs Surface Pro 4
Where HTML5 is headed next
MacBook Pro v Surface Pro 5
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.