Patent ID: 7859186

Claim:
A white organic light emitting device, comprising: an anode; a cathode; a charge generation layer arranged between the anode and the cathode; and an organic layer arrangement arranged between the anode and the cathode, the organic layer arrangement including a green light emitting layer, a blue light emitting layer, and a red light emitting layer, one of the green light emitting layer, the blue light emitting layer, and the red light emitting layer includes a first light emitting layer and second light emitting layer, the charge generation layer being arranged between the first light emitting layer and the second light emitting layer, wherein other ones of the green light emitting layer, the blue light emitting layer, and the red light emitting layer consist of only a single light emitting layer, and wherein ones of the other ones of the green light emitting layer, the blue light emitting layer and the red light emitting layer are separated from each other by at least the charge generation layer.