Encapsulation For An Organic Electronic Component, Its Production Process And Its Use

Abstract

An encapsulation for an organic electronic component, characterized in that the component, encapsulated in a dimensionally stable capsule, is at least partially covered with a protective film.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described further below with reference to an exemplary embodiment:

The FIGURE shows a cross section through an encapsulated organic electronic component covered according to the present invention with protective film.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

In the FIGURE there may be recognized the substrate 1, on which the component is disposed. Visible thereon are the component 3, comprising various active layers, and the encapsulation 5, which is attached to the substrate 1 by means of glue 4. Disposed over the encapsulation 5 is the protective film 2, which covers parts of the substrate 1 as well.

The invention discloses for the first time a high-density encapsulation that far outperforms the known encapsulation technologies, since a weak point of the encapsulation, such as for example the transition from the capsule to the substrate or the electronic component as a whole, is covered with a protective film.

Claims

1. An encapsulation for an organic electronic component, characterized in that the component, encapsulated in a dimensionally stable capsule, is at least partially covered with a protective film.

2. The encapsulation as in claim 1, wherein said dimensionally stable capsule is glued to the substrate.

3. The encapsulation as in claim 1, wherein the entire exterior of the component is covered with a protective film.

4. The encapsulation as in claim 1, wherein said protective film includes at least one thin-barrier film.

5. The encapsulation as in claim 1, wherein said protective film includes a film made of silicon nitride.

6. The encapsulation as in claim 1, wherein said protective film includes a layer made of parylene C.

7. The encapsulation as in claim 1, wherein said protective film has a thickness in the range of 1 nm to 500 μm.

8. A method for producing an encapsulation, wherein an organic electronic component on a substrate is first covered with a capsule, the capsule is then fixed to the substrate, and the encapsulated component is thereafter covered at least in part with a protective film.

9. The method as in claim 8, wherein said capsule is glued to said substrate.

10. The method as in claim 8, wherein said protective film is applied to said encapsulated component by a method selected from the group including the following methods: chemical vapor deposition, physical vapor deposition, wet chemical deposition, such as spin coating, dip coating, drop coating, printing techniques such as stencil printing, squeegee printing, screen printing, ink jet processes, spraying, plasma coating methods, plasma polymerization methods, laminating processes, hot sealing, transfer techniques (such as thermotransfer), welding methods and injection molding.

11. The method as in claim 8, wherein the application of the protective film takes place at least in part under reduced pressure.

12. The method as in claim 8, wherein the application of the protective film takes place at least in part in a high vacuum.

12. The method as in claim 8, wherein the protective film takes place at least in part via chemical vapor deposition.

13. The method as in claim 12, wherein said chemical vapor deposition is plasma-assisted.

14. The method as in claim 8, wherein the contacting of the component by means of, inter alia, a connection cable bringing said organic electronic component into contact with an external drive or playback electronics and/or another type of connection (grounding) takes place prior to the application of said thin-barrier film protective film.

15. The use of an encapsulation according to claim 1 to protect organic electronic components, such as organic light-emitting diodes, polymer chips and/or organic photovoltaic and/or electrochromic elements and/or display applications that are organically based.