Patent ID: 9711749
Date: 2017-07-18
CPC Classifications: H01L

Claim:
1. An organic light emitting display (OLED) device comprising: a substrate; an anode on the substrate; a bank on the substrate to partially overlap the anode; an organic light emitting element including a common layer on the anode and the bank, a thickness of the common layer on the bank being smaller than a thickness of the common layer on the anode; and a cathode above the common layer on the anode and the bank, wherein the common layer included in the organic light emitting element includes a first organic light emission layer, a n-type charge generation layer on the light emission layer, a p-type charge generation layer on the n-type charge generation layer, and a second organic light emission layer on the p-type charge generation layer, and wherein a thickness of each of the n-type charge generation layer and the p-type charge generation layer on the bank is smaller, respectively, than a thickness of each of the n-type charge generation layer and the p-type charge generation layer on the anode.