Tosihba Laptop – Screen Problem (just general question)?

Hello.
I have a Tosihba A105 laptop and the bottom half of the screen starts
to just freeze or fade white. I plugged in external monitor and
everything shows up fine so its probably something with the lcd. Now
to narrow it down, whenever i move the screen around, if i get it in
certain position the screen becomes normal again but if it shakes a
little, it start fading white again.

I am just wondering what the possible problem could be? Do you
think lcd is bad (shaking shouldnt affect it than) or perhaps a loose
video cable?

Any help would be great!