Help identifying if issue is the LCD or something else

I have a friend with an older 2006 MacBook Pro, and it has an issue with the screen. They are willing to sell it to me for cheap, but I want to know if the issue could be fixed by simply replacing the LCD with a new one, or if it might be something more complicated like the logic board or video card.

The screen looks like it's cracked when turned on, but looking at it without any video being displayed it looks fine. The DVI output works fine on an external monitor though. So is this something that can be fixed with a replacement LCD? I'd hate to order one and have the issue persist. It looks like I can get a replacement on ebay for around $125, which would be worth it if it fixed the issue. Thanks for any suggestions you can give.

 

Sweet, thanks. With the replacement LCD I'll be getting a this for under $250. Granted it's a 2006, but still worth the money.

 

When I applied pressure around the edges of the screen, and flexed it a little, the viewable area changed. I could briefly see where it was just the lines before. That seems to reinforce the issue is with the LCD, doesn't it?