Abstract: Provided is a white light emitting organic electroluminescent device, which includes a transparent substrate, a first element, and a second element, wherein the first element includes a first anode, a first element organic layer, and a reflective cathode sequentially disposed on a first substrate of the transparent substrate, and wherein the second element includes a second anode, a second element organic layer, and a transparent or translucent cathode sequentially disposed on a second surface of the transparent substrate.

Abstract: Provided is a white light emitting organic electroluminescent device, which includes a transparent substrate, a first element, and a second element. The first element includes a first anode, a first element organic layer, and a reflective cathode sequentially disposed on a first substrate of the transparent substrate. The second element includes a second anode, a second element organic layer, and a transparent or translucent cathode sequentially disposed on a second surface of the transparent substrate. The white light emitting organic electroluminescent device of the present invention can eliminate the color coordinates shift phenomenon of white light that occurs in a conventional three primary color white light organic electroluminescent device. Since the aging effect caused by heat generated from light emission is reduced by dividing electroluminescent layers, the electroluminescent device can have a long lifespan.