Yes, its repairable but the we need to see if its worth a repair.
This can happen because of these reasons :
1. Your display (LCD Screen) has gone bad and needs to be replaced.
2. The cable connecting the motherboard and the display has a crack or is loose.
3. The graphics chipset (on motherboard) has issues.
Connect an external monitor to this laptop and if that works fine then issue 3 can be ruled out. And then its worth repairing the laptop at a local repair shop. But if even the external monitor behaves the same way, then its not worth spending more than $100 on it.
Note: After you plug in external monitor, you might need to press Fn + FX (X =1 to 12) keys to toggle to external monitor. FX is one of the Function keys.
This is not a software problem and needs repair/replacement of the malfunctioning part.
If laptop is in warranty contact laptop manufacturer for free repair and dont tell them anything about the accident. Else take a quote from few shops and then get it repaired.
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