A video display color decoder converts a YCbCr digital video signal back into its original RGB format. Modern video displays with HDMI digital inputs process video signals in YCbCr format. However, at the end of a display’s video processing path, the YCbCr component video signal needs to be converted back to an RGB signal, to be usable by the display’s imaging control device (e.g. electron gun and phosphors in a CRT, imaging chip(s) and filters in an LCD). This conversion of the processed YCbCr component video signal into an RGB signal is done by the display’s color decoder….
As the first step in display calibration, you should investigate the effects of the various picture viewing modes provided by the display. Each of the provided viewing mode selections contains a unique combination of picture and operational characteristics. You want to select one or more of the available picture modes as a starting point(s) for the calibration. Depending upon the display model, some modes may be less suitable or totally unsuitable for calibration….
To calibrate its grayscale tracking, a display may provide only two-point white balance controls, only multipoint white balance controls, or it may provide both. If both types of controls are provided, it is generally best to adjust the two-point controls first, and then adjust the multipoint controls, if necessary….