A good resource for free test patterns is Lagom LCD monitor test pages. The site will lead you through a series of test patterns, which you use to adjust your monitor using the OSD controls -- the ...

against some color test patterns. Since you calibrated your OS against the first display, that monitor should look the way you like. The goal now is to make the second one look just like the first ...

if the monitor or TV you are watching is properly set up, you can enjoy movies and dramas with cinema-quality picture and sound. In fact, Netflix distributes videos called 'Test Patterns,' which ...