Patent ID: 8278818

Claim:
An electroluminescent (EL) display device comprising: a substrate; a pixel electrode disposed on the substrate; a first pixel defining layer disposed on the pixel electrode and having an opening part exposing a predetermined part of the pixel electrode; a first barrier layer disposed on the first pixel defining layer; a second pixel defining layer disposed on the first barrier layer and having an opening part exposing the predetermined part of the pixel electrode; a second barrier layer disposed on the second pixel defining layer; an emission layer disposed inside the opening part and contacting the pixel electrode and a part of the second barrier layer; and an opposed electrode disposed directly on the emission layer and a remaining part of the second barrier layer inside the opening part, wherein the pixel electrode contacts the first pixel defining layer, the first barrier layer, the second pixel defining layer, and the second barrier layer, and wherein each of the pixel defining layers has a thickness of about 1000 to 5000 Å.