Patent ID: 8829815

Claim:
A system for controlling the backlighting of an electronic display with a backlight cavity contained within a housing, the system comprising: a backlighting assembly within the backlight cavity of the electronic display; a power source operatively connected to said backlighting assembly; a temperature sensing device within the housing; a first light sensing device positioned to measure ambient light; a second light sensing device within said backlight cavity; and a software driver operatively connected to said temperature sensing device; said first and second light sensing devices; and said power source; and wherein the software driver is adapted to decrease the power source when the temperature sensing device indicates a temperature higher than a threshold temperature, measure a light ratio, wherein said light ratio is defined as the ratio of the amount of light contacting the front surface of the housing to the amount of light within the backlight cavity; increase the power source when the light ratio exceeds a maximum preferred light ratio; and decrease the power source when the light ratio falls below a minimum preferred light ratio.