It'll get worse by the day. Make sure you backup all of your files before it's too late. You could also use the external monitor connector connected to an external display from now on, but it kinda defeats the purpose of having a portable machine.
If it's going to die, then I'll get it repaired asap.
It depens wether the glass plate of the lcd has issues or just the connector or the translation/transformer part.
The connector is just a flat cable. You can check it yourself if you're careful enough. The only thing you require is the correct method to open the laptop, because this is different for each laptop model.
If the translation part of the lcd screen has troubles, don't have it repaired. It's not worth it. Same goes with the glass plate. These things are usually 80% of the laptops net worth.
Do you have some sort of insurance you could claim the malfunctioning laptop on?