Patent ID: 9489920
Filing Date: 2016-11-08
CPC Classification: G09G

Claim Text:
1. A method of controlling in a display device screen brightness and strength of dynamic range compression of display data in dependence on ambient light level values, the method comprising: acquiring ambient light level values from one or more ambient light sensors; averaging the ambient light level values using a first method to obtain a first average value, wherein the first method uses a first temporal averaging; averaging the ambient light level values using a second method to obtain a second average value, wherein the second method uses a second temporal averaging that is different from the first temporal averaging, such that the first average value is different from the second average value, and wherein at least one of the first and second methods uses moving window averaging; using the first average value for controlling the screen brightness; using the second average value for controlling the strength of dynamic range compression; and resetting at least one moving window averaging associated with the at least one of the first and second methods that uses the at least one moving window averaging, when at least one of one or more latest acquired ambient light level values deviates from a corresponding current first or second average value by more than a predetermined threshold value.