Encapsulation for an organic electronic device

Patent metadata

Field	Value
Publication number	US-9601721-B2
Application number	US-201214351090-A
Country	US
Kind code	B2
Filing date	Oct 11, 2012
Priority date	Oct 11, 2011
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

An organic electronic device and a method of making an organic electronic device are provided. An embodiment of an electronic device includes a substrate, an active layer disposed on the substrate and a thin-layer encapsulation disposed on the active layer. The device further includes a first adhesive layer disposed on the thin-layer encapsulation, wherein the first adhesive layer comprises a getter material and a covering layer disposed on the first adhesive layer.

First claim

The invention claimed is:

1. An organic electronic device comprising:
a substrate;
an active layer disposed on the substrate;
a thin-layer encapsulation directly disposed on the active layer;
a first adhesive layer disposed on the thin-layer encapsulation, wherein the first adhesive layer comprises a getter material;
a covering layer directly disposed on the first adhesive layer; and
a second adhesive layer arranged circumferentially around the first adhesive layer, wherein the second adhesive layer is free of the getter material,
wherein the active layer has edges, lateral surfaces and a main surface facing away from the substrate,
wherein the thin-layer encapsulation covers the lateral surfaces and the main surface of the active layer facing away from the substrate,
wherein the second adhesive layer covers lateral surfaces of the thin-layer encapsulation and a main surface of the thin-layer encapsulation partly,
wherein a thickness of the thin-layer encapsulation is between 10 nm and 500 nm, and
wherein the covering layer is a metal foil or a plastic foil.

2. The device as claimed in claim 1 , wherein the getter material comprises zeolites.

3. The device as claimed in claim 1 , wherein the first adhesive layer additionally comprises heat-conducting particles.

4. The device as claimed in claim 1 , wherein the first adhesive layer covers edges or lateral surfaces of the active layer.

5. The device as claimed in claim 1 , wherein the organic electronic device comprises an organic light-emitting diode, wherein the active layer of the organic light-emitting diode is configured to emit radiation, wherein the first adhesive layer is arranged in a beam path of the active layer, and wherein getter particles have a scattering effect in relation to the radiation of the active layer.

6. The device as claimed in claim 1 , wherein lateral surfaces of the second adhesive layer are completely covered by the covering layer.

7. The device as claimed in claim 1 , wherein outer lateral surface of the second adhesive layer are completely free of the covering layer.

8. The device as claimed in claim 1 , wherein the thin-layer encapsulation comprises one of the following materials: aluminum oxide, zinc oxide, zirconium oxide, titanium oxide, hafnium oxide, lanthanum oxide, silicon oxide, and silicon nitride.

9. An organic electronic device comprising:
a substrate;
an active layer disposed on the substrate, wherein the active layer has edges, lateral surfaces and a main surface facing away from the substrate;
a thin-layer encapsulation directly disposed on the active layer, wherein the thin-layer encapsulation covers the lateral surfaces and the main surface of the active layer;
a first adhesive layer disposed on the thin-layer encapsulation, wherein the first adhesive layer comprises a getter material, an adhesive material and scatter particles, wherein the getter material comprises second particles, the second particles having a scattering effect on radiation generated in the active layer; and
a covering layer directly disposed on the first adhesive layer such that lateral surfaces of the first adhesive layer are covered by the covering layer,
wherein the active layer has edges, lateral surfaces and a main surface facing away from the substrate,
wherein the thin-layer encapsulation covers the lateral surfaces and the main surface of the active layer facing away from the substrate,
wherein a second adhesive layer covers lateral surfaces of the thin-layer encapsulation and a main surface of the thin-layer encapsulation partly,
wherein the covering layer covers lateral surfaces of the second adhesive layer,
wherein the covering layer is in direct contact with the substrate,
wherein a thickness of the thin-layer encapsulation is between 10 nm and 500 nm,
wherein the covering layer is a metal foil or a plastic foil, and
wherein the thin-layer encapsulation comprises one of the following materials: aluminum oxide, zinc oxide, zirconium oxide, titanium oxide, hafnium oxide, lanthanum oxide, silicon oxide, and silicon nitride.

10. The device as claimed in claim 9 , wherein the active layer has edges and lateral surfaces and a main surface facing away from the substrate, and wherein the thin-layer encapsulation covers the edges or the lateral surfaces and the main surface of the active layer.

11. The device as claimed in claim 9 , wherein the first adhesive layer covers edges or lateral surfaces of the active layer.

12. The device as claimed in claim 9 , wherein the covering layer is adhered to the substrate by glass frits.

Assignees

• Osram Opto Semiconductors Gmbh
• Osram Oled Gmbh

Inventors

• Lang Erwin
• Baisl Richard
• Schlenker Tilman
• Heppner Doreen
• Popp Michael
• Trummer-Sailer Evelyn

Classifications

• H10K59/8794

  Arrangements for heating and cooling · CPC title

• H10K59/877

  comprising scattering means · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K59/8722

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

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title