Patent ID: 9048447
Filing Date: 2015-06-02
Classification: H01L

Abstract:
1. An organic light emitting display device comprising: first and second electrodes facing each other on a substrate; at least two light emitting units formed between the first and second electrodes, wherein each of the light emitting units comprises an emitting layer; an N-type charge generation layer and a P-type charge generation layer sequentially stacked between the light emitting units; and a first auxiliary charge generation layer generating electrons and holes supplied to the emitting layer of the light emitting unit, wherein the first auxiliary charge generation layer is formed either between the P-type charge generation layer and the emitting layer of the light emitting unit disposed above the P-type charge generation layer, or between the N-type charge generation layer and the emitting layer of the light emitting unit disposed below the N-type charge generation layer.