IP Library Granted Patent US 8,393,930
Granted Patent B2
US 8,393,930 · App. 13/438,622 · Granted Mar 12, 2013

Organic light emitting display device and method of manufacturing the same to prevent damage to an interlayer

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Quick Facts
Patent No.
US 8,393,930
App. No.
13/438,622
Granted
Mar 12, 2013
Kind
B2
Abstract

An organic light emitting display device prevents damage to an interlayer including an emitting layer and reduces IR drop in face electrodes, and a method of manufacturing the same. The organic light emitting display device includes: a substrate; a pixel electrode disposed on the substrate; an interlayer comprising an emitting layer disposed on the pixel electrode; a face electrode on the interlayer; and a sealing member disposed on the face electrodes, wherein the sealing member and the face electrode are bent along a curve of an upper portion of a layer below the face electrode so as to prevent a gap between the sealing member and the face electrode, and between the face electrode and the layer below the face electrode.

Claims (36)

1. A method of manufacturing an organic light emitting display device, the method comprising:

(a) forming a pixel electrode on a substrate and forming an interlayer comprising an emitting layer on the pixel electrode;

(b) forming a conductive layer on a flexible sealing member; and

(c) positioning the flexible sealing member and the substrate with the conductive layer facing the interlayer, and reshaping the flexible sealing member and the conductive layer to conform to an upper surface of a layer below the conductive layer at high temperature and high pressure, thereby substantially eliminating a gap between the conductive layer and the layer below the conductive layer.

2. The method of claim 1 , wherein the conductive layer comprises a transparent conductive oxide or a conductive polymer.

3. The method of claim 1 , wherein

step (a) comprises forming a pixel defining layer covering an edge of the pixel electrode and exposing a center of the pixel electrode before forming the interlayer, and

step (c) comprises reshaping the flexible sealing member to prevent or eliminate a gap between the conductive layer and the interlayer, and between the conductive layer and the pixel defining layer.

4. A method of manufacturing an organic light emitting display device, the method comprising:

(a) forming a pixel electrode on a substrate and forming an interlayer comprising an emitting layer on the pixel electrode;

(b) forming a conductive layer on a flexible sealing member; and

(c) positioning the flexible sealing member and the substrate with the conductive layer facing the interlayer, and heating the flexible sealing member so that the flexible sealing member and the conductive layer conform to an upper surface of a layer below the conductive layer, thereby substantially eliminating a gap between the conductive layer and the layer below the conductive layer.

5. The method of claim 4 , wherein the conductive layer comprises a transparent conductive oxide or a conductive polymer.

6. The method of claim 4 , wherein

step (a) comprises forming a pixel defining layer covering an edge of the pixel electrode and exposing a center of the pixel electrode before forming the interlayer, and

step (c) comprises reshaping the flexible sealing member to prevent or eliminate a gap between the conductive layer and the interlayer, and between the conductive layer and the pixel defining layer.

7. A method of manufacturing an organic light emitting display device, the method comprising:

(a) forming a pixel electrode on a substrate, forming an interlayer comprising an emitting layer on the pixel electrode, and forming a face electrode on the interlayer;

(b) forming a patterned conductive layer on a flexible sealing member; and

(c) positioning the flexible sealing member and the substrate with the patterned conductive layer facing the face electrode, and reshaping the flexible sealing member to conform to an upper surface of a layer below the flexible sealing member at high temperature and high pressure with substantially no gap between the flexible sealing member and the face electrode, and between the patterned conductive layer to and the face electrode.

8. The method of claim 7 , wherein the patterned conductive layer comprises a transparent conductive oxide or a conductive polymer.

9. The method of claim 7 , wherein

step (a) comprises forming a pixel defining layer covering an edge of the pixel electrode and exposing a center of the pixel electrode before forming the interlayer, and

step (c) comprises reshaping the flexible sealing member to prevent or eliminate a gap between the flexible sealing member and the face electrode, and between the flexible sealing member and the pixel defining layer.

10. The method of claim 9 , wherein a pattern of the patterned conductive layer corresponds to an upper surface of the pixel defining layer.

11. The method of claim 9 , wherein the patterned conductive layer comprises an opaque material.

12. A method of manufacturing an organic light emitting display device, the method comprising:

(a) forming a pixel electrode on a substrate, forming an interlayer comprising an emitting layer on the pixel electrode, and forming a face electrode on the interlayer;

(b) forming a patterned conductive layer on a flexible sealing member;

(c) positioning the flexible sealing member and the substrate with the patterned conductive layer facing the face electrode, and heating the flexible sealing member, thereby reshaping the flexible sealing member to conform to an upper surface of a layer below the flexible sealing member with substantially no gap between the flexible sealing member and the face electrode, and between the patterned conductive layer and the face electrode.

13. The method of claim 12 , wherein the patterned conductive layer comprises a transparent conductive oxide or a conductive polymer.

14. The method of claim 12 , wherein

step (a) comprises forming a pixel defining layer covering an edge of the pixel electrode and exposing a center of the pixel electrode before forming the interlayer, and

step (c) comprises reshaping the flexible sealing member with substantially no gap between the flexible sealing member and the face electrode, and between the flexible sealing member and the pixel defining layer.

15. The method of claim 14 , wherein a pattern of the patterned conductive layer corresponds to the upper surface of the pixel defining layer.

16. The method of claim 14 , wherein the patterned conductive layer comprises an opaque material.

Assignments (1)
MERGER Recorded Aug 31, 2012
From: SAMSUNG MOBILE DISPLAY CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 028921/0334 →