Display information feedback

A video display for use with a video source configured to provide a video signal, the video display comprising:

• an interface configured to communicate with the video source;
• a display portion connected to the interface and being configured to display a video image in accordance with the video signal provided by the video source;
• a display characteristic information module that stores dynamic display characteristic information indicative of a display capability of the display portion, wherein the dynamic display characteristic information includes an indication of a color gamut of the video display;
• the information module being configured to update the display characteristic information after characteristics of the video display portion change;
• an output module coupled to the display characteristic information module and the interface and configured to provide the dynamic display characteristic information to the video source via the interface and to automatically provide updated dynamic display characteristic information to the video source in response to a change in the dynamic display characteristic information;
• and
• a receiving module coupled to the interface for receiving a video signal from the video source, the video signal being processed as a function of the display characteristic information provided by the video display including a mapping of colors outside the color gamut of the video display to colors within the color gamut of the display in response to the color gamut information.

A method for improving utilization of a video display capability of a video source, the method comprising:

• storing dynamic display characteristic information indicative of a characteristic of the video display in a memory of the video display, wherein the dynamic display characteristic information includes an indication of a color gamut of the video display;
• providing the dynamic display characteristic information from the video display to a video source via a bi-directional signal communication link;
• automatically updating the dynamic display characteristic information in response to a change in the dynamic display characteristic information;
• and
• receiving, at the video display, a video signal from the video source, the video signal being processed as a function of the display characteristic information provided by the video display including a mapping of colors outside the color gamut of the video display to colors within the color gamut of the display in response to the color gamut information.

A processing unit implemented in a video source device that is coupled to a video display, the processing unit comprising:

• an input configured to receive an input video signal;
• an interface configured to communicate with the video display and to receive dynamic display characteristic information, wherein the dynamic display characteristic information includes an indication of a color gamut of the video display;
• and
• a processor configured to receive the input video signal, to receive the dynamic display characteristic information automatically in response to a change in the dynamic display characteristic information, to determine whether to adapt the processing of the video signal according to the dynamic display characteristic information, and to process the input video signal, as a function of the dynamic display characteristic information, to produce a processed video signal;
• wherein the processing the input video signal includes a mapping of colors outside the color gamut of the video display to colors within the color gamut of the display in response to receiving the color gamut information;
• wherein the interface is configured to provide the processed video signal to the video display.

A method implemented by a video source device, comprising:

• using a bi-directional communication link between the video source device and a video display;
• receiving display information from a video display, the display information related to characteristics of the video display that includes an indication of a color gamut of the video display, and the display information received automatically in response to a change in the dynamic display characteristic information;
• receiving a video source signal intended for the video display;
• determining whether to adapt a processing of the received video source signal according to the received display information including a mapping of colors outside the color gamut of the video display to colors within the color gamut of the display in response to receiving the color gamut information;
• and
• providing video signal information to the video display, via the communication link, the video signal information related to a video signal being sent to the video display, whereby the video display is configured to process the video signal as a function of the video signal information.