Unlock instant, AI-driven research and patent intelligence for your innovation.

Barrier laminate for an electroluminescent device

An electroluminescent device and stacking technology, which is applied in the use of barrier stacks and the manufacture of barrier stacks, can solve problems not mentioned and achieve the effect of increasing barrier properties

Active Publication Date: 2006-07-19
KONINK PHILIPS ELECTRONICS NV
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, no mention is made regarding the compromised barrier properties of the sides of the barrier stack when cut into smaller pieces

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Barrier laminate for an electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In the research work leading up to the present invention, it was found that by including a lateral gas barrier within the planarization layer in the barrier stack, the barrier properties via side-in diffusion are improved. Lateral barriers are added by making discrete planarization layers, forming separate islands of planarization material (unconnected regions), and incorporating barrier material between islands of planarization material.

[0032] exist figure 1 In , an embodiment of a barrier stack (1) according to the invention is shown. The barrier stack (1) comprises a continuous planarization layer (2) and a continuous barrier layer (3). In the layer stack, the discontinuous layer (4) is placed as close as possible to the active layer (not shown) of the electroluminescent device. It comprises a region of planarizing material (5) and a region of barrier material (6).

[0033] The region of barrier material forms a lateral barrier that can be located in all planar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A barrier laminate (1) and electroluminescent device comprising such laminate is disclosed. The barrier laminate (1) contains at least one discontinuous layer (4) of a planarisation material, which layer is divided into unconnected area (5) distributed along the plane. The unconnected areas (5) are separated by regions (6) of a barrier material. Further, methods for the manufacture of a discontinuous layer (4) in a barrier laminate (1) is disclosed, as well as the use of such a discontinuous layer (4) as a water and / or oxygen impermeable layer.

Description

technical field [0001] The present invention relates to barrier stacks and electroluminescent devices comprising such stacks. The stack includes planarization and barrier materials. The invention also relates to a method of manufacturing a barrier stack, and to the use of such a barrier stack. Background technique [0002] During the manufacture of displays, especially flexible displays, most of the substrate consists of layers of polymer and barrier material. [0003] A flexible display can be fabricated using a flexible substrate and a flexible cover, for example, in a flat panel display process such as an organic light emitting display process. Both the cover and the substrate must contain one or more oxygen and water impermeable barrier layers in order to protect the cell contents from physical and / or chemical degradation. Oxidation is the case for organic electroluminescent devices, and especially polymer electroluminescent devices are sensitive to oxidation. For ot...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/56H01L51/50H01L33/48
CPCY10T428/24802H01L51/5237H10K50/8445H10K50/841H05B33/10
Inventor C·A·H·A·穆特萨尔斯P·J·斯里克维尔
Owner KONINK PHILIPS ELECTRONICS NV