Cross hatch pattern on MacBook Pro screen

MacBook Pro (13-inch, Mid 2010), 8gb RAM, 120gb SSD, running OS X 10.11.2

My screen displays a hatch pattern mostly in apps created by Apple. The following are some examples.

Screen shot of Appleinsider homepage in Safari...

Screen of Appleinsider home page using Chrome...

Preview of a screenshot of the finder using Preview...

Preview of same screenshot using Chrome...

I did a clean sweep of Yosemite and El Capitan and get the same results. Any ideas would be greatly appreciated.