IP Library Granted Patent US 9,190,629
Granted Patent B2
US 9,190,629 · App. 14/074,349 · Granted Nov 17, 2015

Flexible organic electroluminescent device and method for fabricating the same

Inventors: Do Hyung Kim (Paju-si, KR); Mi So Kim (Seoul, KR); Chi Min Choi (Cheonan-si, KR)
Assignee: LG DISPLAY CO., LTD.
H01L51/56H01L27/3244H01L51/5253H01L2251/5338
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Quick Facts
Patent No.
US 9,190,629
App. No.
14/074,349
Granted
Nov 17, 2015
Kind
B2
Abstract

Disclosed are a flexible organic electroluminescent device, and a method for fabricating the same. The flexible organic electroluminescent device comprises a non-active area formed outside an active area of a substrate; a switching thin film transistor and a driving thin film transistor on the substrate; an interlayer insulating layer formed on the substrate; a first electrode formed on the interlayer insulating layer; a bank formed in the non-active area of the substrate; an organic light-emitting layer formed on the first electrode; a second electrode formed on the organic light-emitting layer; a first passivation layer formed on the substrate; an organic layer formed on the first passivation layer; a partition wall pattern formed on the first passivation layer; a second passivation layer formed on the first passivation layer; and a barrier film disposed to face the substrate.

Claims (17)

1. A flexible organic electroluminescent device, comprising:

a substrate divided into an active area including a plurality of pixel regions, and a non-active area formed outside the active area;

a switching thin film transistor and a driving thin film transistor at each of the pixel regions on the substrate;

an interlayer insulating layer on the substrate including the switching thin film transistor and the driving thin film transistor, and configured to expose a drain electrode of the driving thin film transistor therethrough;

a first electrode at each pixel region on the interlayer insulating layer, and connected to the drain electrode of the driving thin film transistor;

a bank in the non-active area of the substrate;

an organic light-emitting layer on the first electrode, and separated from each other at each pixel region;

a second electrode on the organic light-emitting layer, in the active area;

a first passivation layer on an entire surface of the substrate including the second electrode;

an organic layer on the first passivation layer, in the active area;

a partition wall pattern on the first passivation layer in the non-active area so as to enclose the active area, wherein the partition wall pattern is formed in a separated manner from the organic layer;

a second passivation layer on the first passivation layer including the organic layer and the partition wall pattern;

a barrier film disposed to face the substrate; and

an adhesive interposed between the substrate and the barrier film, and configured to adhere the substrate and the barrier film to each other to form a panel.

2. The flexible organic electroluminescent device of claim 1 , wherein the partition wall pattern and the organic layer are formed of the same layer.

3. The flexible organic electroluminescent device of claim 1 , wherein the partition wall pattern and the organic layer are formed of an organic insulating materials including a polymer.

4. The flexible organic electroluminescent device of claim 1 , wherein the substrate is formed of a flexible glass substrate or a plastic material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2013
From: KIM, DO HYUNG; KIM, MI SO; CHOI, CHI MIN
To: LG DISPLAY CO., LTD.
Reel/Frame 031563/0582 →
Priority Claims (1)
KR 10-2012-0126907 · Nov 9, 2012 · national
Continuity (1)
Related Publication 20140131682A1 · May 15, 2014