Display region based gamma curve control

A method, comprising:

• obtaining initial control points (CPs) defining a first gamma curve for a first analog state associated with a display panel;
• generating, based on the initial CPs, calculated CPs for a second analog state associated with the display panel;
• selecting, based on a switching signal identifying a luminance of a region of an image, a set of CPs from the calculated CPs and auxiliary CPs defining a second gamma curve;
• obtaining a data value associated with the region of the image;
• generating, based on the set of CPs, a portion of an output gamma curve near the data value;
• and
• outputting a voltage data for displaying the region of the image on the display panel based on the data value and the portion of the output gamma curve.

A display device, comprising:

• a display panel;
• a memory configured to store initial control points (CPs) defining a first gamma curve for a first analog state associated with the display panel;
• CP calculation circuitry configured to generate, based on the initial CPs, calculated CPs for a second analog state associated with the display panel;
• selector circuitry configured to:
• input the calculated CPs, auxiliary CPs defining a second gamma curve, and a switching signal identifying a luminance of a region of an image;
• and
• output, based on the switching signal, a set of CPs selected from the calculated CPs and the auxiliary CPs;
• and
• gamma curve calculation circuitry configured to:
• input a data value associated with the region of the image;
• generate, based on the set of CPs, a portion of an output gamma curve near the data value;
• and
• output a voltage data for displaying the region of the image on the display panel based on the data value and the portion of the output gamma curve.