Adhesive barrier film construction

Patent metadata

Field	Value
Publication number	US-10199603-B2
Application number	US-201414907276-A
Country	US
Kind code	B2
Filing date	Jul 22, 2014
Priority date	Jul 24, 2013
Publication date	Feb 5, 2019
Grant date	Feb 5, 2019

Abstract

The present disclosure relates to forming a bond with a high peel resistance between a bonding layer and an adjacent barrier layer. Such articles are particularly useful in the preparation of a device, in particular a luminescent device, and a method is described for assembly of the luminescent device. The luminescent device includes an encapsulation system using flexible transparent barrier film and an ultraviolet (UV) radiation curable (meth)acrylate matrix. The moisture sensitive luminescent material can be, for example, a quantum dot material disposed in a film, or a film construction that includes an OLED structure.

First claim

What is claimed is:

1. A device, comprising:
a first and a second barrier layer, each comprising at least an outer polymer layer, each outer polymer layer having an adhesive contact surface; and
a luminescent layer comprising a luminescent nanocrystals dispersed in a polymer matrix disposed between the first and the second barrier layers with the respective adhesive contact surfaces in contact with the luminescent layer,
wherein a peel adhesion between the first and the second barrier layers and the luminescent layer is at least 100 grams/inch.

2. The device of claim 1 , wherein the peel adhesion between the first and the second barrier layers and the luminescent layer is at least 200 grams/inch.

3. The device of claim 1 , wherein the luminescent nanocrystals comprise quantum dots.

4. The device of claim 1 , wherein the polymer matrix comprises a curable (meth)acrylate, a curable epoxy, or a combination thereof.

5. The device of claim 1 , wherein each of the outer polymer layers comprise a radiation cured (meth)acrylate and optionally a silane coupling agent.

6. A display, comprising:
a device according to claim 1 ;
a light disposed to illuminate the device; and
a liquid crystal display panel disposed between the light and the device.

Assignees

• 3M Innovative Properties Co

Inventors

• Pieper Joseph M
• Nelson Eric W
• Mccormick Fred B
• Eckert Karissa L
• Nebraska Adam M

Classifications

• C08J7/0423

  with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder · CPC title

• C08J2433/08

  Homopolymers or copolymers of acrylic acid esters · CPC title

• G02F1/1336

  Illuminating devices · CPC title

• C08J2367/02

  Polyesters derived from dicarboxylic acids and dihydroxy compounds; (C08J2367/06 takes precedence) · CPC title

• H01L51/56

  Electricity · mapped topic