My laptop screen works fine sometimes, other times it goes blank. Is there a quick way to fix it? Probably some loose connection.
If it changes as you move it (ie, opening, closing or readjusting), it is most likely the signal cable. This is a relatively easy fix if it is the case, but can take some time and you will need to keep good track of the screws as you pull the laptop apart.
If it just does it on its own while you are using the laptop, it is more likely to be that your video card/processor is going out or the lighting element in your LCD is. Either way, this is not a good thing. The screen can be replaced, but is expensive and time consuming. If it is the video card/processor, it is most likely integrated into the motherboard and you'll have to replace the whole board, which is also expensive and time consuming.