Patent ID: 8228357

Claim:
A method for generating a display driving signal for driving a display unit comprising a display panel having a plurality of subpixels and also comprising a light source configured for providing light to the subpixels for thereby forming an image, the generated display driving signal being a composite digital signal specifying subpixel values which define subpixel states for corresponding ones of the subpixels for thereby defining a to-be-formed image and the composite digital signal also specifying one or more light source control values for controlling a light output of the light source for thereby further defining the to-be-formed image, the method comprising: (1) obtaining a subpixel signal which is a first digital signal representing subpixel values; (2) obtaining a light source signal which is a second digital signal representing one or more light source control values; and (3) encoding at least part of the light source signal into the to-be-generated display driving signal such that the encoded at least part of the light source signal occupies one or more data positions in the to-be-generated display driving signal that otherwise would have been occupied by at least part of the obtained subpixel signal, thus forming the composite digital signal.