Laptop Screen unstable colours


Sep 23, 2016
Please i have a problem my laptop screen gets unstable since POST and when i log in it shows purple colours and shows shadows for everything in my desktop here it is by capture software:-
And another one by mobile:-
i want to know if the screen is bad or the video connector i have reseated it and checked the edges of the led but no luck..
when i browse the internet the unstability increases.
it is wxga hd 1366*768 hp
Nothing has touched my screen no cracks no liquids.
Please answer my question..