Mbp screen covered with verticle, pink, one pixel lines

i just got back from class today and opened my mpb and i found the screen to be completely pink. it was cover with tons of one pixel pink vertical lines. when i connect it to my tv, the picture is fine. i also do not have an nvidia chip, so i dont believe its related to that problem. i ran the hardware test and got this error.
4SNS/1/40000000:TB0T
i also believe my warranty is up with apple, and ideas on what i should do.

Welcome to Apple Discussions!
The error code indicates a problem with a thermal sensor. I don't know that this has anything to do with your display problem.
Since the video artifact is not evident on the external display, it sounds like you may have a problem with your built in display or its connections.
Do check with Apple and verify if your warranty is up or not. If you are in the last few days, whatever it is will be covered.
Good luck!

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