Patent ID: 7783105

Claim:
A method of digitally adjusting a gamma curve of a display device, the method comprising: for a luminance code in a region located between and including a first tap point and a second tap point of a plurality of virtual tap points associated with luminance codes for an original gamma curve of a controller for said display device, determining a linear scaling factor for said luminance code based on a linear representation of said original gamma curve in said region, wherein a voltage output for said luminance code is presented to said display device by said controller; determining a gamma value offset for said luminance code by applying said linear scaling factor to a linear representation of a modified gamma curve in said region performing contrast enhancement; determining an adjusted gamma value for said luminance code based on said gamma value offset, wherein said adjusted gamma value is associated with said modified gamma curve for said controller of said display device, and wherein said voltage output is adjusted as determined by said adjusted gamma value for said luminance code.