Patent ID: 8350257
Filing Date: 2013-01-08
Classification: H01L

Abstract:
1. A white organic light emitting device comprising: an anode and a cathode facing each other on a substrate; a charge generation layer formed between the anode and the cathode; a first stack formed between the anode and the charge generation layer in a stack structure of a first hole transport layer, a first light emitting layer emitting blue, a first electron transport layer and an electron transport catalyst layer doped with metal; and a second stack formed between the charge generation layer and the cathode in a stack structure of a second hole transport layer, a second light emitting layer, and a second electron transport layer, the second light emitting layer doped with phosphor red and green dopants in one host, and the second hole transport layer having an energy level higher than a triplet exciton energy level of the second light emitting layer.