SYSTEM AND METHOD FOR EXPOSURE TIMING COMPENSATION FOR ROW RESISTANCE

摘要

A current driving circuit (264) for use with a display of light emitting elements arranged in rows and columns. The current driving circuit (264) is configured to control the exposure time of column current sources (270) based on the row voltage seen by the pixel in that column. The current driving circuit (264) allows for more closely matching the currents across the array of light emitting elements in the display by compensating for variations in voltage caused by resistance in the row lines. The invention also provides a method of balancing currents in a display device comprising controlling the exposure time of column current sources based on the row voltage seen by the light emitting elements in the column.