A tandem white OLED includes an anode; a cathode; at least one broadband
electroluminescent unit disposed between the anode and the cathode,
wherein the broadband electroluminescent unit includes at least one
light-emitting layer and produces at least one color component having an
intensity less than desired; at least one color-compensating
electroluminescent unit disposed between the anode and the cathode,
wherein the color-compensating electroluminescent unit is selected to
produce the at least one color component and to increase the color
component intensity; and an intermediate connector disposed between each
adjacent electroluminescent unit, wherein the intermediate connector has
no direct connection to an external power source.