Patent ID: 9570696
Date: 2017-02-14
CPC Classifications: H01L

Claim:
1. A white organic light emitting device comprising: a first light emitting unit between a first electrode and a second electrode; a second light emitting unit on the first light emitting unit; and a first charge generation layer between the first light emitting unit and the second light emitting unit; a third light emitting unit on the second light emitting unit; and a second charge generation layer between the second light emitting unit and the third light emitting unit, wherein a volume of a metal in the first charge generation layer is within a range of 1.0% or less of the total volume of the first charge generation layer in consideration of abnormal light emission, a driving voltage, or a lifespan, and wherein the first charge generation layer includes a P-type charge generation layer and a N-type charge generation layer, and wherein the total volume of the metal in the first charge generation layer and the second charge generation layer is 0.8% or less of the total volume of the first charge generation layer and the second charge generation layer in consideration of the abnormal light emission, the driving voltage, or the lifespan.