A tandem white OLED device includes an anode, a cathode, and a plurality
of organic electroluminescence units disposed between the anode and the
cathode, wherein each organic electroluminescence unit includes at least
one light-emitting layer, and wherein each organic electroluminescence
unit emits white light. The device also includes an intermediate
connector disposed between each adjacent organic electroluminescence
unit, wherein the intermediate connector includes at least two different
layers, and wherein the intermediate connector has no direct connection
to an external power source.