System and method to synchronize adaptive luminance and color controls among multiple displays

A system comprising:

• a processor;
• a data bus coupled to the processor;
• and
• a non-transitory, computer-readable storage medium embodying computer program code, the non-transitory, computer-readable storage medium being coupled to the data bus, the computer program code interacting with a plurality of computer operations for synchronizing adaptive luminance and color controls of multiple displays, and comprising instructions executable by the processor and configured for:
• identifying displays in an ambient light sensor (ALS) cluster;
• identifying which displays in the ALS cluster are ALS equipped and non ALS equipped;
• designating an ALS equipped display as a primary display of the ALS cluster;
• designating the other displays as follower displays of the ALS cluster;
• collecting ALS readings from the ALS equipped displays to determine luminance and color tone;
• arbitrating the determine luminance and color tone;
• wherein the luminance and color tone are based on essential parameters and advance parameters in an ALS control behavior set, wherein essential parameters include a) Minimum luminance (Lum_min), max luminance (Lum_max), in nits;
• b) Minimum correlated color temperature (CCT_min), maximum correlated color temperature (CCT_max), in Kelvin;
• c) Luminance control step size (Lum_step), in nits and speed (Lum_speed), in nits/sec;
• d) Correlated color temperature control step size (CCT_speed), in Kelvin and speed (CCT_speed), in Kelvin/sec;
• e) ALS role:
• ALS Primary or ALS Follower;
• and advance parameters include:
• a) luminance control multi-segment mapping points (Lum_1 . . . n) color temperature control multi-segment mapping points (CCT_1 . . . n);
• and
• providing the arbitrated luminance and color tone to all the displays in the ALS cluster.

A non-transitory, computer-readable storage medium embodying computer program code for message serialization and deserialization, the computer program code comprising computer executable instructions configured for synchronizing adaptive luminance and color controls of multiple displays comprising:

• identifying displays in an ambient light sensor (ALS) cluster;
• identifying which displays in the ALS cluster are ALS equipped and non ALS equipped;
• designating an ALS equipped display as a primary display of the ALS cluster;
• designating the other displays as follower displays of the ALS cluster;
• collecting ALS readings from the ALS equipped displays to determine luminance and color tone;
• arbitrating the determine luminance and color tone;
• wherein the luminance and color tone are based on essential parameters and advance parameters in an ALS control behavior set, wherein essential parameters include a) Minimum luminance (Lum_min), max luminance (Lum_max), in nits;
• b) Minimum correlated color temperature (CCT_min), maximum correlated color temperature (CCT_max), in Kelvin;
• c) Luminance control step size (Lum_step), in nits and speed (Lum_speed), in nits/sec;
• d) Correlated color temperature control step size (CCT_speed), in Kelvin and speed (CCT_speed), in Kelvin/sec;
• e) ALS role:
• ALS Primary or ALS Follower;
• and advance parameters include:
• a) luminance control multi-segment mapping points (Lum_1 . . . n) color temperature control multi-segment mapping points (CCT_1 . . . n);
• and
• providing the arbitrated luminance and color tone to all the displays in the ALS cluster.