White lines on screen

Umut__

Commendable
Aug 4, 2016
32
0
1,530
Hello I bought XL2430T benq about 2 year ago. I just realised there is little 3 white lines on the top of the screen. how can I fix this or is it there forever?
wew

uploaded the picture :
xiMYu

http://imgur.com/a/xiMYu
picture is pretty bad you can bearly see it