a small black horizontal line on lenovo laptop

hemasree

Commendable
Jan 5, 2017
2
0
1,510
0
i have using lenovo laptop for almost 2 years but recently i've noticed a small black horizontal line line on my screen. it is not there when i use a screenshot. the line is becoming bigger from day by day. here is the problem
 

hemasree

Commendable
Jan 5, 2017
2
0
1,510
0


can u tell me how much it will cost to fix it?