Can anybody guess/tell me what is that blue line on the bottom of the display? Is that a non-factory screen from a different HP that is causing it? Or could it be a visual illusion?
It rather looks like the mask surround has shifted, though I could be quite wrong.
(Post 181)
The shadow of the header's horizontal line reveals the angle of lighting used for the photograph, and the curved shape of the two ends of that blue area is exactly the same shape as the two curved ends of the metal keyboard overlay, so I deduce that the mysterious blue area at the bottom is merely the shadow of the metal keyboard overlay.
It is indeed a shallow angle of the camera causing it, I have finally gotten another picture of it, thanks Joe.