I posted this as a response for someone else. Examine it again after you watch these videos. It should help you determine the state of your monitor.
http://hardforum.com/showpost.php?p=1041200594&postcount=3100
It's easy to determine. Here a quick explanation from others that I have heard on this forum.
IPS Glow is the light that illuminates the monitor coming from behind the front panel. The IPS glow will tend to disappear/appear as you move your angle of view. This is natural for IPS monitors...
With all the bad CostCo experiences on this thread, I took the risk of buying a 34UM95 from CostCo online this week since they have a good return policy. It paid off! It appears they have a September 2014 model that they are distributing and the panel looks perfect. There's no backlight...