[Q] color issues after screen replacement topic

I replaced my nexus 5 screen after cracking it with a new lcd, digitizer, and the frame from amazon. tested the screen before re assembling the whole unit and all looked great. after getting it all buttoned up i found that after the screen sleeps and comes back on the colors are very distorted. Rebooted the phone and the color is accurate again, but again after the screen sleeps and comes back on the colors are distorted. I then tore it back apart installed my old crack screen and all is fine again. I am looking to see if anyone has come across this. I am assuming it is a bad display, but would like to see if anyone has any other suggestion on a possible problem before i return the display.