| abstract |
The present invention discloses a white light emitting organic electroluminescent (EL) device able to directly emit continuous full color light containing three different frequency bands and a method for manufacturing such an organic electroluminescent device. The device comprises: a first conductive layer having a first conductive type; a first carrier transmission layer; a second carrier blocking layer; a first host material layer formed on the first conductive layer, wherein the first host material layer is doped with a first guest luminescent material so as to cast a first color light source under a bias voltage; a second host material layer formed on the first host material layer, wherein the second host material layer is doped with a second guest luminescent material so as to cast a is second color light source under the bias voltage; a third host material layer formed on the second host material layer, wherein the third host material layer is doped with a third guest luminescent material so as to cast a third color light source under the bias voltage; a first carrier blocking layer; a second carrier transmission layer; and a second conductive layer having a second conductive type formed on the third host material layer. |