Ok, I managed to get some additional photos, basically there is no discernable light leakage, even in a totally dark room, however I deliberately over exposed two of the photos and you can then see some light from the screen, but it is pretty even and not visible to the naked eye.
This one is how it looks to the naked eye in a pitch black room...
This next one was over exposed, with a 1 second shutter speed. You can just see a bit of light at the bottom of the screen.
This last one was massively overexposed. 5 second shutter speed. You can see the light coming from the screen, but it is not visible to the naked eye.