I am editing the original posting with all of the results being inconclusive. I couldn't understand any reason why the displays are showing lines. The remainder of this thread has a bunch of ideas but nothing proved accurate. The one hypothesis that I didn't fully test or research was the layers on the display. These clear coat type film layers are said to be the culprit by some, but I disagree. I do believe it stems from power, but I cannot prove anything! Good luck to anyone who could figure this out. I spent a lot of time and money on it myself with no real further understanding.