Patent ID: 9685622
Date: 2017-06-20
CPC Classifications: H01L

Claim:
1. A white organic light emitting device comprising: a first emission part between a first electrode and a second electrode, and configured to include a first emission layer (EML); a second emission part on the first emission part, and configured to include a second EML; and a third emission part on the second emission part, and configured to include a third EML, wherein the first to third emission parts have an emission position of emission layers (EPEL) structure in which the first to third emission parts have a maximum emission range in respective emission areas of the first to third EMLs, wherein two EMLs among the first EML, the second EML, and the third EML include one among: a blue emission layer, a blue emission layer and a yellow-green emission layer, a blue emission layer and a red emission layer, and a blue emission layer and a green emission layer, and wherein a remaining one EML among the first EML, the second EML, and the third EML includes one among: a yellow-green emission layer, a yellow emission layer and a red emission layer, a red emission layer and a green emission layer, and a yellow-green emission layer and a red emission layer.