Macbook Pro screen has vertical and horizontal lines on part of it
So I posted a question a few days ago regarding my Macbook Pro's wifi acting up, and now a much more serious issue has popped up that I'm wondering what the cause of it could be. Like I said, a few days ago, my Macbook Pro's wifi starting turning itself off and refusing to turn back on unless restarted (and at some points convinced itself it didn't have a wifi card installed). Well now, a few days later, while the wifi issue still persists, there's about about a vertical inch of my screen that just turns into vertical and horizontal lines of different colors (sometimes red, blue, grey, even occasionally just black for a second). Weird thing is, don't know if it's my screen because if I tilt the screen back and forth a little I can make the vertical inch of my screen work again, but as soon as anything nudges the screen, the lines come back. I have no idea what could cause this, if there's an issue with my logic board or if the two issues are completely unrelated, but I have heard that early 2011 Macbook Pro's have had issues in the past regarding the automatic graphics switching, but the symptoms described there aren't what my Mac's doing so I can't be sure it's the same thing. Here's a link to 5 examples of what my screen looks like at different times from my Dropbox (Because the image importer isn't working right now for me for some reason. Also the first one is normal, the second one has a red box around the pattern to indicate it's location since it's kind of hard to see in the picture, the rest have different patterns covering that inch of my screen):
Has anyone had anything like this happen to them? If so, do you know what caused it? I just want to know because I plan to visit the apple store in two days to ask about both issues and I don't want to get tricked into spending $500 if they say something that's not the correct issue. Any help is greatly appreciated, thanks!
MacBook Pro, OS X Mavericks (10.9.4), Early 2011, 15"