About four years ago I bought a used Asus Q500a (15.6" Ivy Bridge based laptop) with a broken screen. This model could come with either a 720P or 1080P screen, so I took a chance and bought a 1080P AUO panel and it worked perfectly. A year or so ago I noticed this weird little splotch inside the screen that definitely wasn't there before. It isn't caused by dead pixels and I've tried blowing compressed air into the edges of the panel to see if it'd move, but it did nothing. It looks to me like something has gotten in between the backlight and the LCD panel, but I have no idea how to get it out without causing more problems.
If this were your laptop, how would you go about fixing this? The computer is fantastic aside from this one blemish. The i5 3210M is very fast for basic use, it has 8GB DDR3-1600 and a 240GB Samsung 840EVO. I really want to figure this out!
I hope these pics give a good impression of what it looks like. One of the pictures I took through a tiny handheld magnifier. Additionally, the splotch sort of shifts color and visibility with the LCD display when I move around, and it is visibly "behind" the pixels. When I look at it off center the splotch looks lighter and it is very noticeable that the images in front are not on the same surface as the splotch (there is a mm or so of "depth" between them).