Patent ID: 9076978
Filing Date: 2015-07-07
Classification: H01L

Abstract:
1. An organic light emitting diode device, comprising: a first electrode and a second electrode facing each other, a charge-generating layer interposed between the first electrode and the second electrode, a first light emitting unit that emits blue only and is interposed to immediately contact with the first electrode and the charge-generating layer, and a second light emitting unit that emits a white-displaying color by combining the blue and is interposed between the second electrode and the charge-generating layer, wherein the first light emitting unit comprises: a blue emission layer, a first charge transport layer disposed on one side of the blue emission layer and including an alkali metal complex compound and a first charge transport material, and a second charge transport layer disposed on one side of the first charge transport layer and including the alkali metal complex compound and a second charge transport material that has a charge mobility different from that of the first charge transport material.