Patent ID: 8410715

Claim:
A machine-implemented method for driving a plurality of differently positioned light sources of a backlighting system of a display unit where, as positionally sensed at a front side of the display unit, spatial distribution of luminance provided by the backlighting system versus power input for two or more of the light sources can vary, the method comprising: obtaining position and power level information signals indicating respective positions of each of two or more of the differently positioned light sources and indicating corresponding power levels to be delivered to each of the two or more differently positioned ones of the light sources based on the respective positionings within the backlighting system of the two or more differently positioned light sources; outputting a light source control signal providing control information corresponding to that of the obtained position and power level information signals; receiving an externally provided input power and subdividing the received input power into a plurality of respective driving powers each respectively having a driving power level whose magnitude is based on the corresponding position and power level information provided by the light source control signal; and applying each of the respective driving powers respectively to the two or more differently positioned light sources; wherein the obtained position and power level information signals are configured to reduce non-uniformity of luminance as positionally sensed across the front side of the display unit, and wherein the light sources are extended in a first direction of a rear surface of the display panel and aligned in a second direction substantially perpendicular to the first direction, and an amount of the driving power applied to the light source is increased as a distance from a center of the rear surface of the display panel is increased in the second direction.