Patent ID: 8378958

Claim:
A backlight, comprising: a first string of first substantially white light emitting diodes each selected from a first bin and configured to be driven at a first driving strength, wherein the first bin comprises substantially white chromaticities within a first range of chromaticity coordinates; a second string of second substantially white light emitting diodes each selected from a second bin and configured to be driven at a second driving strength, wherein the second bin comprises substantially white chromaticities within a second range of chromaticity coordinates, and the first and second ranges of chromaticity coordinates are approximately equidistant from a target white point in opposite directions on a chromaticity diagram; one or more drivers configured to independently drive the first string at the first driving strength and the second string at the second driving strength; and a controller configured to dynamically adjust at least one of the first or second driving strengths via the one or more drivers to produce a white point substantially similar to the target white point.