the LG 27UK850-W 4k 27-inch monitor with my MacBook Pro

I just got a new LG 27UK850-W 4k monitor for my MacBook Pro. I hooked it all up and it worked great for about two weeks, then suddenly while I was watching it, the video went away to nothing but a dark screen. I was not doing anything to it but simply watching it. Now nothing I do can make it work again. FYI, I was mirroring the video from my MacBook Pro. FYI, my MacBook Pro is working just fine. I even switched out USB C cable so see if that was the problem. Also now if I turn on the LG monitor, I can no longer get the LG menu to show either when you toggle its lever. I know its "on" because when it turns ON, it makes the beep that it makes when it is turned on. Also I can see the black screen take on a slight hue after the beep sound like you would expect if turned on. But that is all I get now. Any ideas out there as to what could have happened to cause this? ~dave