Patent ID: 8139021
Filing Date: 2012-03-20
Classification: G09G

Abstract:
1. A method for dynamically controlling illumination of a backlight for a display system, said method comprising: receiving image data that is to be rendered by said display system; compiling said image data into a data structure according to information related to backlight illumination requests that are requested by said image data, said data structure dividing said image data into groups according to said backlight illumination requests, each group among said groups being associated with a visual error value and a backlight illumination request; calculating values of an error measure by iteratively accumulating one or more visual error values associated with one or more additional groups among said groups at each iteration until having calculated a first value of said error measure that exceeds a first error threshold after a first visual error value associated with a first group among said groups has been added to a previous value for calculating said first value of said error measure, said previous value being less than said first error threshold; determining a backlight illumination value using at least one of a first backlight illumination request associated with said first group and a second backlight illumination request associated with a second group among said groups, a second visual error value associated with said second group having been included in calculating said previous value; and employing said backlight illumination value in adjusting said backlight for said display system.