White vertical lines on Laptop screen

Hello, I have 6 lines grouped together 1/3rd of the way across my screen. first line is about 5mm thick and the others only 1mm.

The cat knocked my closed laptop off a 30cm high table

bending the screen causes the lines to increase but not disapear.

the image is fine when connected by HDMI cable to TV.

laptop is a gateway NV57H48u
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More about white vertical lines laptop screen
  1. Looks like the screen got damaged. Call the warranty!
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