I didn’t say your display cannot be replaced, I asked you to post frontal photos of the display with the application running, and in normal light conditions and with as high a resolution camera as possible. I didn’t hear back from you on facebook with regards to my last question about photos. It is difficult for me to see if there is anything wrong with your display or not.
The display does have a backlight, so it is possible that there is some of that light reflecting somewhere into your display along the edges.
Lastly, the glow (if it is there) can also be the result of a power supply issue and not necessarily the display itself. Have you tried putting the SSP into a different case with a different power supply, or have you tried unpowering all your other modules, or have changed where on the bus board you connect the SSP?
One other thing to check is if there is a module to the LEFT of the SSP, which has green or yellow LEDs, which are emitting closeby. It shouldn’t be possible, but I’m wondering if that can be a source of the problem. So one thing to do is to remove any modules to the left of the SSP and see if that changes anything.
I am assuming you are using the cable that came with the SSP.