To provide a method used in an active matrix display system comprising a light-emitting element array, in which the current supplied to each light-emitting element is dependent upon the voltage between a pair of power lines, which ideally should provide a constant voltage but in reality have finite resistance that produces an unintended voltage differential along the power lines proportional to the conduction current, said method automatically adjusting this voltage differential.
Display drivers sequentially receive an input image signal for driving light emitting elements within each region of an array of regions; analyze the input image signal received for each region to estimate the current that may be generated at at least one point along at least one power line providing a current to each region; and sequentially generate a converted image signal for driving the light emitting elements in each region.
MICHAEL JOHN MURDOCH
JOHN WILLIAM HAMER
Jun Tsuruta
Tomohiro Minamiyama
Kenichi Nakamura