Active matrix image display device with compensation for trigger thresholds, uses measurement of current drawn by pixel driver to determine its threshold voltage and generates correction to command voltage to match threshold voltage

摘要

The display has a network of light-emitting devices (1), each controlled by a current modulator, and a supply generator (3). An image data manager (44) corrects data as a function of pixel trigger threshold voltage for the modulator (Mn,p) to generate a corrected command voltage. The trigger threshold is determined (41) by measuring (42) the current delivered by the current generator.