Screen issue

I have a macbook and I am having a problem with the screen. In one part of the screen I have this scratch from the inside. It almost looks like someone smeared something on the underside of my screen. It started as a "-- o --" pattern and grew to "----- 0 -------" size. It is hard to notice when you have light backgrounds on the screen, but if you play a movie, for example, and when the black hits it, it looks awful. What is wrong with my screen? Can I do anything about? Would the Applecare cover it? Thanks in advance for any responses

Call or take it in to Apple ASAP. If you call them and tell them exactly what the problem is, they will tell you if it's covered or not. I read over the warranty info. but they weren't very clear on display coverage. Call them. That's all I know to tell you.