My asus N550JK screen stops working at a certain angle and it's really annoying since it's one of the best viewing angles that it stops working. laptop hasn't been dropped or anything... it's about 2 years old. It has a keyboard replacement and a motherboard replacement. Both are Asus original parts.
https/www.youtube.com/watch?v=htGxyu_fH8s
https/www.youtube.com/watch?v=htGxyu_fH8s