Encapsulation film

Patent metadata

Field	Value
Publication number	US-2019115562-A1
Application number	US-201716091063-A
Country	US
Kind code	A1
Filing date	Apr 12, 2017
Priority date	Apr 12, 2016
Publication date	Apr 18, 2019
Grant date	—

Abstract

The present application relates to an encapsulation film, a method for manufacturing the same, an organic electronic device comprising the same and a method for manufacturing an organic electronic device using the same. The present invention provides an encapsulation film which can form a structure capable of effectively blocking moisture or oxygen flowing from the outside into an organic electronic device, has excellent handling property and workability, and has excellent adhesion property and endurance reliability between the encapsulation film and the organic electronic device.

First claim

1 . An encapsulation film for an organic electronic element, comprising:
a metal layer having a first surface and a second surface opposite to the first surface; and an encapsulation layer provided on the first surface, positioned inside an edge of the first surface so that a gap having a size of 20 μm to 1,000 μm is formed between an edge of the encapsulation layer and the edge of the first surface, and having an inclined part at the edge of the encapsulation layer.

2 . The encapsulation film according to claim 1 , wherein the inclined part has a width (d) ranging from 2 μm to 1,000 μm.

3 . The encapsulation film according to claim 1 , wherein the encapsulation layer has a Mooney viscosity (η*) ranging from 2.0×10 Pa·s to 10 8 Pa·s, which is measured according to shear stress under conditions of 5% strain, a frequency of 1 Hz and a temperature of 100° C.

4 . The encapsulation film according to claim 1 , wherein the encapsulation layer has a cured part at the edge thereof.

5 . The encapsulation film according to claim 4 , wherein the cured part has a width ranging from 10 μm to 1,100 μm.

6 . The encapsulation film according to claim 1 , wherein the metal layer comprises any one of a metal, a metal oxide, a metal nitride, a metal carbide, a metal oxynitride, a metal oxyboride, and a mixture thereof.

7 . The encapsulation film according to claim 1 , wherein the metal layer comprises any one of iron, aluminum, copper, nickel, silicon oxide, aluminum oxide, titanium oxide, indium oxide, tin oxide, indium tin oxide, tantalum oxide, zirconium oxide, niobium oxide, and a mixture thereof.

8 . The encapsulation film according to claim 1 , further comprising a protective layer provided on the second surface of the metal layer and an adhesive layer provided between the metal layer and the protective layer.

9 . The encapsulation film according to claim 1 , wherein the encapsulation layer is formed with a single layer or two or more layers.

10 . The encapsulation film according to claim 1 , wherein the encapsulation layer comprises a first layer comprising an encapsulating resin having a glass transition temperature of 85° C. or more.

11 . The encapsulation film according to claim 1 , wherein the encapsulation layer comprises a second layer comprising an encapsulating resin having a glass transition temperature of 0° C. or less.

12 . The encapsulation film according to claim 1 , wherein the encapsulation layer comprises a moisture absorbent.

13 . A method of manufacturing the encapsulation film according to claim 1 , comprising cutting a side of the encapsulation layer.

14 . The method according to claim 13 comprising cutting a side of the a metal layer.

15 . The method according to claim 13 , wherein the cutting of a side of the encapsulation layer is performed using a CO 2 laser or an optical fiber laser.

16 . The method according to claim 14 , wherein the cutting of a side of the metal layer is performed using a CO 2 laser, an optical fiber laser or a knife cutter.

17 . The method according to claim 13 , wherein the cutting of a side of the encapsulation layer is performed using a laser beam having a size of 50 μm to 500 μm.

18 . The method according to claim 14 , wherein the cutting of a side of the metal layer is performed using a laser beam having a size of 1 μm to 30 μm.

19 . An organic electronic device comprising a substrate, an organic electronic element formed on the substrate, and the encapsulation film according to claim 1 configured to encapsulate an entire surface of the organic electronic element.

20 . A method of manufacturing an organic electronic device, comprising:
applying the encapsulation film according to claim 1 to a substrate having an organic electronic element formed thereon so as to cover the organic electronic element; and curing the encapsulation film.

Assignees

• Lg Chemical Ltd

Inventors

• Moon Jung Ok
• Yoo Hyun Jee
• Kim Hyun Suk
• Lee Jung Woo
• Yang Se Woo

Classifications

• B32B2581/00

  Seals; Sealing equipment; Gaskets · CPC title

• B32B2307/7246

  Water vapor barrier · CPC title

• B32B38/105

  on edges · CPC title

• B32B2457/00

  Electrical equipment · CPC title

• B32B2038/0076

  Curing, vulcanising, cross-linking · CPC title