Organic light emitting display device and method of manufacturing an organic light emitting display device

Patent metadata

Field	Value
Publication number	US-10535725-B2
Application number	US-201916239704-A
Country	US
Kind code	B2
Filing date	Jan 4, 2019
Priority date	Jun 28, 2016
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

An organic light emitting display (OLED) device includes a substrate comprising a display region and a peripheral region. The OLED device further includes a conductive layer disposed in the peripheral region on the substrate and including an opening portion exposing at least a portion of the substrate, the conductive layer having an undercut shape. The OLED device additionally includes an insulation layer disposed on the conductive layer, the insulation layer including an opening that exposes the opening portion. The OLED device further includes a common layer disposed in both the display region and the peripheral region on the insulation layer and on the substrate exposed by the opening portion. The common layer disposed on the substrate exposed by the opening portion is spaced apart from the common layer disposed on the insulation layer.

First claim

What is claimed is:

1. An organic light emitting display (OLED) device, comprising:
a first insulation layer disposed on a substrate;
a second insulation layer disposed on the first insulation layer;
a conductive layer disposed on the second insulation layer, wherein the second insulation layer and the conductive layer include an opening portion on the first insulation layer; and
a display layer disposed on both the conductive layer and the first insulation layer exposed by the opening portion,
wherein the second insulation layer and the conductive layer are exposed by a sidewall of the opening portion,
wherein the conductive layer protrudes inward of the opening portion than the second insulation layer, and
wherein the display layer is disconnected by the opening portion.

2. The OLED device of claim 1 , wherein the display layer does not cover at least a portion of the sidewall of the opening portion.

3. The OLED device of claim 1 , further comprising a third insulation layer between the conductive layer and the display layer,
wherein at least a portion of a bottom surface of the third insulation layer is exposed by the opening portion.

4. The OLED device of claim 1 , wherein the substrate includes a display region, an opening region inside the display region, and a peripheral region between the display region and the opening region, and
wherein the opening portion is disposed in the peripheral region.

5. The OLED device of claim 4 , further comprising:
a switching structure disposed in the display region on the substrate, the switching structure comprising an active pattern, a first gate electrode, and a second gate electrode which are sequentially stacked on the substrate; and
an insulation structure disposed on the substrate, the insulation structure comprising a first gate insulation layer disposed between the active pattern and the first gate electrode, and a second gate insulation layer disposed between the first gate electrode and the second gate electrode.

6. The OLED device of claim 5 , wherein the conductive layer is disposed on a same level as the second gate electrode, and
wherein the second insulation layer corresponds to the second gate insulation layer.

7. The OLED device of claim 5 , wherein the first insulation layer corresponds to the first gate insulation layer.

8. The OLED device of claim 1 , wherein the display layer includes an organic light emitting layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Sun-Kwang
• Kang Ki-Nyeng
• Kang Jin-Koo
• Lim Bek-Hyun

Classifications

• H01L27/124

  Electricity · mapped topic

• H01L51/0023

  Electricity · mapped topic

• H01L27/3262

  Electricity · mapped topic

• H01L51/5209

  Electricity · mapped topic

• H01L51/5225

  Electricity · mapped topic