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US 7,923,916 B2Granted
Dual panel type organic electroluminescent display device and method of fabricating the same
AssigneeLG Display Co., Ltd.
InventorsJung-Soo Heo, Jae-Hee Park, Sang-Ho Yu, Kyung-Min Park, Sung-Hoon Choi, Seok-Jong Lee
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Abstract
An organic electroluminescent device including a switching element and a driving element connected to the switching element on a substrate including a pixel region, a cathode connected to the driving element, in which the cathode includes molybdenum (Mo), an emitting layer on the cathode, and an anode on the emitting layer.
Claims26
An organic electroluminescent device, comprising:
- a switching element and a driving element connected to the switching element on a substrate including a pixel region;
- a first passivation layer including a contact hole on the driving element;
- a cathode on the first passivation layer and connected to the driving element through the contact hole;
- a first buffer layer on the cathode;
- a second passivation layer on the first buffer layer, the second passivation layer and the first buffer layer having a contact hole that exposes a portion of the cathode;
- an emitting layer on the cathode;
- and
- an anode on the emitting layer,
- wherein the first buffer layer includes molybdenum (Mo).
6 more elements
A method of fabricating an organic electroluminescent device, comprising:
- forming a switching element and a driving element connected to the switching element on a substrate including a pixel region;
- forming a first passivation layer including a contact hole on the driving element;
- forming a cathode on the first passivation layer, the cathode connected to the driving element through the contact hole;
- forming a first buffer layer on the cathode;
- forming a second passivation layer on the first buffer layer;
- forming a contact hole that exposes a portion of the cathode in the first buffer layer and the second passivation layer by simultaneously patterning the first buffer layer and the second passivation layer;
- forming an emitting layer on the cathode;
- and
- forming an anode on the emitting layer wherein the first buffer layer includes molybdenum (Mo).
6 more elements
Dependencies are inferred from the claim text.