Quote: "Right next to it I have a cheap $100 gateway and it has no dead pixels....."
Similar here; my primary monitor is a $100 dollar Acer, and it's worked flawlessly for almost 4 years now!
Quote: "S6 is big.... for a phone. But I think for a monitor it's a bit shy of my target What I need to do is hook it up to my 40" 4k tv and see how it looks."
Haha yes, of course.
40" 4k monitor is good idea!
A few years back, a laptop of mine developed a few dead pixels in the middle of the screen, but I found that by tapping on/thumping that area of the screen, I could occasionally get them to go away for a few weeks to several months. I hear that occasionally the little transistors can lose their physical connection with their corresponding pixel, resulting in a dead or stuck pixel. By mechanically manipulating the screen, one may be able to restore functionality... Not sure if you want to do that to your screen, but it may be worth a try.
"It also shoots blue flames sometimes, which is startling in the most exquisite of ways." -- Self