Solve : Part of the Laptop Display goes dark?

1.	Solve : Part of the Laptop Display goes dark?
Answer» My laptop display works well most of the TIME. but when I CHANGE the angle of the display or when I press the display, ONE part of the SCREEN goes black. Can someone help me to figure out where the problem is? Is the flex cable or led display bad? As it is the top right corner if you are right handed it is most likely the LCD panel which is faulty not the cable .Replace the cable...then you'll KNOW...

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