Organic light emitting diode display having an auxiliary member in contact with an upper surface of an auxiliary electrode

Patent metadata

Field	Value
Publication number	US-10147769-B2
Application number	US-201715711103-A
Country	US
Kind code	B2
Filing date	Sep 21, 2017
Priority date	Dec 7, 2016
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

An organic light emitting diode display according to an exemplary embodiment includes: a substrate; a pixel formed on the substrate and including a pixel area displaying an image and a peripheral area adjacent to the pixel area; an insulating layer at the pixel area and the peripheral area on the substrate; a first electrode at the pixel area on the insulating layer; an organic emission layer on the first electrode and extending to the peripheral area; a second electrode on the organic emission layer and disposed in the pixel area and the peripheral area; an auxiliary electrode in the peripheral area on the substrate and partially exposed by a first opening formed in the insulating layer; and an auxiliary member disposed on the auxiliary electrode and in contact with an upper surface of the auxiliary electrode exposed by the first opening.

First claim

What is claimed is:

1. An organic light emitting diode display comprising:
a substrate;
a pixel formed on the substrate and including a display area displaying an image and a peripheral area adjacent to the display area;
an insulating layer at the display area and the peripheral area on the substrate;
a first electrode at the display area on the insulating layer;
an organic emission layer on the first electrode and extending to the peripheral area;
a second electrode on the organic emission layer and disposed in the display area and the peripheral area;
an auxiliary electrode in the peripheral area on the substrate and partially exposed by a first opening formed in the insulating layer; and
an auxiliary member on the auxiliary electrode and in contact with an upper surface of the auxiliary electrode exposed by the first opening.

2. The organic light emitting diode display of claim 1 , wherein
the auxiliary member is entirely in contact with the upper surface of the auxiliary electrode.

3. The organic light emitting diode display of claim 1 , wherein
the organic emission layer is disposed on the auxiliary member in the peripheral area and has a second opening exposing part of the auxiliary member.

4. The organic light emitting diode display of claim 3 , wherein
the second electrode is in contact with the auxiliary member through the second opening.

5. The organic light emitting diode display of claim 3 , wherein
the second opening has a circular shape.

6. The organic light emitting diode display of claim 1 , wherein
the auxiliary member covers the first opening of the insulating layer.

7. The organic light emitting diode display of claim 1 , wherein
the auxiliary member is in contact with a part of an interior circumference of the first opening.

8. The organic light emitting diode display of claim 1 , wherein
the auxiliary member is formed with the same layer as the first electrode.

9. The organic light emitting diode display of claim 8 , wherein
the auxiliary member is formed by sequentially stacking ITO (indium tin oxide), silver (Ag), and ITO.

10. The organic light emitting diode display of claim 1 , wherein
the auxiliary electrode is a common voltage line transmitting a common voltage.

11. The organic light emitting diode display of claim 10 , wherein
the auxiliary electrode is formed by sequentially stacking molybdenum (Mo), aluminum (Al), and molybdenum (Mo).

12. The organic light emitting diode display of claim 1 , wherein
the pixel includes at least one sub-pixel including the display area and the peripheral area, and
the sub-pixel is a red sub-pixel.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Se Ho
• Kim Tae Hyung
• Song Je-Hyun

Classifications

• H10K59/1315 Primary

  comprising structures specially adapted for lowering the resistance · CPC title

• H10K59/80522 Primary

  combined with auxiliary electrodes · CPC title

• H01L27/3276

  Electricity · mapped topic

• H01L51/0002

  Electricity · mapped topic

• H01L2227/32

  Electricity · mapped topic