WHITE OLEDS HAVING COLOR-COMPENSATED ELECTROLUMINESCENT UNIT

摘要

A tandem white OLED (300) includes an anode (110); a cathode (170); at least one broadband electroluminescent unit (320) disposed between the anode (110) and the cathode (170), wherein the broadband electroluminescent unit (320) 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 (340) disposed between the anode (110) and the cathode (170), wherein the color-compensating electroluminescent unit (340) is selected to produce the at least one color component and to increase the color component intensity; and an intermediate connector (330) disposed between each adjacent electroluminescent unit (320, 340), wherein the intermediate connector (330) has no direct connection to an external power source (180).