Patent ID: 9208730
Filing Date: 2015-12-08
Classification: G09G

Abstract:
1. A method of optimizing a luminance level of a backlight system, the method comprising: dividing the backlight system into a plurality of zones including a first zone and at least one neighboring zone, each of the plurality of zones having a light source; determining a target illumination level and a current illumination level for each of the plurality of zones based on data values of a display panel that is to be illuminated by the backlight system; and determining a difference between a target illumination level and a current illumination level for the first zone, incrementing a backlight drive value assigned to the first zone by an increment value, and iteratively checking for convergence of the target illumination levels and the current illumination levels in the plurality of zones until a predefined convergence condition is satisfied for the plurality of zones, wherein the increment value is dynamically adjusted based on the difference and contributions from the at least one neighboring zone for each iteration.