After replacing display, MacBook screen is hazy . . .

From my earlier questions to give you a sense of what I have done with this MacBook . . .

Replaced Retina display, but MacBook won't power up . . .

Recently replaced my early 2015 MacBook's retina display. Press the power button but nothing happens.

Have hooked it up to a 5 watt charger as indicated in one of the comments, but still no results.

Ideas on where to start on a trouble shoot?

Any ideas are welcome . . .

Will

Update (12/19/2017)

Okay! I think the display cable was loose. I reattached it and now it boots normally. Now, there is a milky haze around the border of the screen. Could this be the display cable, or should I get another retina display?

I have rebooted and adjusted display settings . . . External monitor looks fine , , ,