If u really want to go detail into it, I can tell u that display manufacturers are not using these kind of calibrators in the calibration of their displays. They use the industrial type which are easily more than 20 times the price of a consumer calibrator. So don't expect that u can get the colors of all displays to be the same. Anyway, the spectral characteristics in different type of displays are different. Hence the inaccurate filter sensors in these calibrators may not pick up these differences. Furthermore, in consumer displays, color gamma can be an issue. U may get the white balance correct. But due to gamma issues, playback may then again show some differences in color. Talk to a display specialist for more advice.