an active display device , comprising : a plurality of source buses and a plurality of gate buses ; a plurality of pixel electrodes , said pixel electrodes each having associated therewith a switching element for delivering a drive signal to said pixel electrode from at least one of said source buses as a function of a signal provided by at least one of said gate buses ; and means other than said switching elements for selectively electrically connecting at least one of said pixel electrodes to a corresponding one of said source buses in the event said at least one pixel electrode is considered to be defective .