Invention Grant
- Patent Title: Photocurable adhesive film for organic electronic device seal, organic electronic device and method for sealing same
-
Application No.: US14265106Application Date: 2014-04-29
-
Publication No.: US09957426B2Publication Date: 2018-05-01
- Inventor: Yoon Gyung Cho , Hyun Jee Yoo
- Applicant: LG CHEM, LTD.
- Applicant Address: KR Seoul
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR Seoul
- Agency: Dentons US LLP
- Priority: KR10-2011-0121220 20111118; KR10-2012-0130260 20121116
- Main IPC: C09J163/00
- IPC: C09J163/00 ; H01L51/52 ; H01L51/44 ; C09J133/06 ; C08G59/40 ; C08G59/68

Abstract:
Provided are a photocurable pressure-sensitive adhesive composition including an acrylic polymer, an epoxy resin, a crosslinking agent and a photopolymerization initiator, an organic electronic device having an encapsulant including the composition using a film-state product, that is, a curable pressure-sensitive adhesive film, including the composition, and a method of manufacturing an organic electronic device using the curable pressure-sensitive adhesive film. Particularly, the method includes assembling a photocurable pressure-sensitive adhesive film including an acrylic polymer, an epoxy resin, a crosslinking agent and a photopolymerization initiator with an top substrate; and assembling the top substrate to the bottom substrate on which an organic light-emitting element is formed to cover an entire surface of the organic light-emitting element with the curable pressure-sensitive adhesive layer, and radiating light only to an edge of the assembled top and bottom substrates in which the organic light-emitting element is not disposed to photocure. Therefore, mechanical strength may be ensured due to entire encapsulation, the simplification of a process by photocuring may be achieved without direct radiation of light to the organic light-emitting element, and lifespan of the element may be increased.
Public/Granted literature
Information query