Flexible organic light-emitting display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-11758771-B2
Application number	US-202217577305-A
Country	US
Kind code	B2
Filing date	Jan 17, 2022
Priority date	Dec 5, 2016
Publication date	Sep 12, 2023
Grant date	Sep 12, 2023

Abstract

A flexible organic light-emitting display device and a method of manufacturing the same. The flexible organic light-emitting display device includes a metal oxide infiltrated layer as part of at least one of a plurality of organic layers stacked on and around an organic light-emitting device.

First claim

What is claimed is:

1. A display device, comprising:
an organic light-emitting device comprising a first electrode, a second electrode, and a emission layer between the first electrode and the second electrode;
a plurality of organic layers stacked on first and second sides of the organic light-emitting device, the plurality of organic layers comprising an organic insulating material; and
a metal oxide infiltrated layer which is a part of at least one target organic layer selected from the plurality of organic layers, the metal oxide infiltrated layer including a metal oxide diffused and infiltrated into an exposed surface of the at least one target organic layer according to a sequential vapor deposition method,
wherein:
the plurality of organic layers comprises:
a base organic layer on the first side of the organic light-emitting device;
an insulation organic layer of a thin film transistor that is connected to the organic light-emitting device; and
an encapsulation organic layer on the second side of the organic light-emitting device, which is opposite to the first side of the organic light-emitting device, the encapsulation organic layer covering the organic light-emitting device;

the thin film transistor comprises:
an active layer disposed on the base organic layer;
a gate insulating layer covering the active layer;
a gate electrode disposed on the gate insulating layer and facing the active layer;
an interlayer insulating layer covering the gate electrode;
a source electrode and a drain electrode disposed on the interlayer insulating layer to be respectively connected to different portions of the active layer; and
a via layer covering the source electrode and the drain electrode; and

the insulation organic layer comprises the gate insulating layer, the interlayer insulating layer, and the via layer.

2. The display device of claim 1 , wherein the metal oxide infiltrated layer is a part of the base organic layer.

3. The display device of claim 2 , wherein the metal oxide infiltrated layer is a part of a surface of the base organic layer that faces the organic light-emitting device.

4. The display device of claim 2 , wherein the metal oxide infiltrated layer is a part of a second surface of the base organic layer, which is opposite from a first surface of the base organic layer facing the organic light-emitting device.

5. The display device of claim 1 , wherein the metal oxide infiltrated layer is a part of the via layer.

6. The display device of claim 1 , wherein the metal oxide infiltrated layer is a part of the interlayer insulating layer.

7. The display device of claim 1 , wherein the metal oxide infiltrated layer is a part of the encapsulation organic layer.

8. The display device of claim 1 , further comprising a protection organic layer on an outer surface of the base organic layer,
wherein the metal oxide infiltrated layer is a part of the protection organic layer.

9. The display device of claim 1 , further comprising a window organic layer on the encapsulation organic layer,
wherein the metal oxide infiltrated layer is a part of the window organic layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Chang Moonwon
• Kim Seunghun
• Sung Wooyong
• Song Seungyong

Classifications

• H10K50/8426

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title

• H10K50/8445 Primary

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K59/123 Primary

  Connection of the pixel electrodes to the thin film transistors [TFT] · CPC title