I am having a Laptop of Lenovo.
There is a line found on the screen which suddenly came. I noticed 2 to 3 days back. When i approached service centre, they told that the screen has to be replaced which will cost to around Rs.10000/-, as the warranty period has expired. The width of the line is too small and also found on the 3/4 portion downward of the display screen.
Is there any other solution to this problem rather than replacing the display screen.
It could be the screen itself or it could be the flex connector that feeds it the data (video).
Either way, you need to replace it (the new screen comes with it's own cable). You can try to do this yourself or send it in for service.
Until then you can connect an external monitor and use that; also, that would help you troubleshoot the problem.