Patent ID: 8337303

Claim:
An electronic device, comprising: a housing; a display device coupled to the housing; an illumination device located proximate to the display device, the illumination device operable to emit light; a light sensor coupled to the housing, the light sensor operable to detect an ambient light level relative to the housing; and electrical circuitry operable to: (a) determine a first light intensity level based on a first detected ambient light level and a mapping function; (b) cause the illumination device to gradually modify a current illumination level until the first light intensity level is achieved; (c) receive an input of a second light intensity level from a user; (d) modify the illumination level of the light emitted by the illumination device to the second light intensity level based on the input from the user in the first ambient light level; and (e) modify the mapping function based on the input from the user, the modified mapping function being useable for different ambient light levels detected by the light sensor.