I must say, I don't recommend trying to extend the cables for a laptop LCD... I tried to extend the 32awg wires on my lifebook b and had NO success! They were too small to crimp, twist, or solder.. Single thread in an insulator!
If you have one that molex makes you are in great shape, but otherwize I wouldn't recommend it.. It may be possible with a pin and some cold solder epoxy, but even at that; It may not hold up very well to the vibration and such in the car.