Two possible causes and a couple of possible fixes, two you can try yourself
by following the advice at this Samsung link;
This one you may decide to entrust to a Tech! But first if the laptop is still under warranty and it turns out to need dismantling return it as it involves the LCD screen and the ribbon that attaches it to the motherboard.
1. Remove the battery.
2. Peel off the little rubber pads from the four corners of the face of the lid and unscrew the corresponding four screws.
3. Using a pocket knife or similar object, peel the face off the lid. There are places along the top where some sort of adhesive keeps it together. Elsewhere, the are snaps that pop open as you peel the face off. Do not be alarmed.
4. Unscrew the four screws at the base of the LCD panel, freeing the panel from the hinges. Commence handling the LCD panel. Notice where the cable flattens out and adheres to the back of the panel, Have some fun peeling the first inch or so of it off and sticking it back on.
5. Go on and re-insert the battery and fire up your computer. Without any safety precautions, proceed to dork around with the wiring. Once you have confirmed that your problem is solved, find a nice way to lace the wiring into place and screw the LCD panel back on.
6. Continue staring at the computer screen. Turn the brigness up to full blast and have a sandwich. Enjoy the computer. If the problem is still fixed, shut the computer down, remove the battery and screw everything back together.
Good luck and let us know how it works out for you.