Ambient light color compensation systems and methods for electronic device displays

An electronic device, comprising:

• a display having an array of display pixels configured to emit colored display light;
• an ambient light sensor;
• and
• processing circuitry configured to:
• obtain an ambient light measurement from the ambient light sensor;
• obtain an input image to be displayed by the display;
• determine expected reflection data based on the ambient light measurement and display spectral reflectance data;
• determine color bleaching data based on the expected reflection data and a transformation of the input image;
• determine a color correction factor based on the color bleaching data and the transformation of the input image;
• apply the color correction factor to the transformation of the input image;
• and
• generate a compensated output image for display based on the transformation of the input image with the color correction factor applied.

A method for operating an electronic device having a display, the method comprising:

• obtaining an image to be displayed by the display;
• obtaining a measurement of ambient light in an environment around the electronic device;
• transforming the image to a perceptually uniform color space;
• determining a color correction for the image based on the measurement of the ambient light and the transformed image;
• and
• generating a compensated image based on the transformed image and the color correction.

A method for operating an electronic device having a display, the method comprising:

• obtaining an image to be displayed by the display;
• obtaining a measurement of ambient light in an environment around the electronic device;
• obtaining reflected light tristimulus values;
• determining a color correction for the image based on the reflected light tristimulus values and a color transformation of the image;
• and
• generating a compensated image based on the color transformation of the image and the color correction.