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This is either an issue with your LCD video cable or your LCD screen 99% of the time. The best way to test this is to hookup to 2nd monitor and see how the image looks. If there are no defects then it is an LCD or cable issue. If you have graphic issues on the 2nd monitor then it is your motherboard.
I would recommend (assuming it is the cable/LCD) reseat the LCD video cable inside the laptop and then try to wiggle it around to see if you can make the lines get better or worse. Assuming playing with the cable does not effect the problems on your LCD Then I would say you need a new screen.
Connect an external monitor to the laptop and see if it also has the vertical lines. If the external monitor looks fine, then your laptop’s LCD display panel is bad. If the monitor has the vertical lines displayed on it, then your graphics card or motherboard is bad. Your responses are intended to improve the level of service provided. Please show your appreciation by rating your experience. Thank You.