Organic EL panel comprising a light-emitting part and a sealing structure sealing the light-emitting part and method for manufacturing the same

• US 8,736,164 B2
• Filed: 12/18/2012
• Issued: 05/27/2014
• Est. Priority Date: 02/26/2008
• Status: Active Grant

• Current Assignee: Pioneer Corporation, Tohoku Pioneer Corporation (Pioneer Corporation)
• Original Assignee: Pioneer Corporation, Tohoku Pioneer Corporation (Pioneer Corporation)
• Inventors: Saito, Yuji, Nakajima, Shinji, Yuki, Toshinao
• Primary Examiner(s): Hanley, Britt D
• Application Number:
  US13/718,368
• Publication Number:
  US 20130105783A1
• Time in Patent Office: 525 Days
• Field of Search: None
• US Class Current: 313/512
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: H05B 33/10 Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
• CPC Class Codes: H10K 2102/351 Thickness
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/846 comprising getter material or desiccants
• CPC Class Codes: H10K 59/8722 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 59/873 Encapsulations
• CPC Class Codes: H10K 59/874 including getter material or desiccant

Abstract

An organic EL panel has a light-emitting part including one or a plurality of organic EL elements over a substrate and having a sealing structure sealing the light-emitting part. The organic EL element includes an organic layer formed on a first electrode, and a second electrode formed on the organic layer. The organic EL panel includes a coating film coating the light-emitting part. A contact object is arranged on an inner surface of the sealing structure. One or a plurality of convex parts is formed on the contact object. The coating film is formed to have a thickness larger than the length of the convex part.

Claims

1. An organic EL panel comprising a light-emitting part including an organic EL element over a substrate and having a sealing structure sealing the light-emitting part, wherein

the organic EL element includes at least one organic layer formed on a first electrode, and a second electrode formed on the organic layer,

the organic EL panel includes a coating film coating the light-emitting part,

a contact object is arranged on an inner surface of the sealing structure,

a plurality of convex parts is formed on the contact object,

the coating film is formed to have a thickness larger than the length of the plurality of convex parts,

the coating film has concave parts formed in a form matching the convex parts, and

the convex parts and the concave parts face each other with a space disposed between the convex parts and the concave parts.

2. The EL panel according to claim 1, wherein the contact object is a desiccant.

3. The EL panel according to claim 1, wherein the contact object is a sealing adhesive.

4. An organic EL panel comprising a light-emitting part including an organic EL element over a substrate and having a sealing structure sealing the light-emitting part, wherein

the organic EL element includes at least one organic layer formed on a first electrode, and a second electrode formed on the organic layer,

the organic EL panel includes a coating film coating the light-emitting part,

a contact object is arranged on an inner surface of the sealing structure,

a plurality of convex parts is formed on the contact object,

the coating film is formed to have a thickness larger than the length of the plurality of convex parts, and

the coating film has concave parts formed in a form matching the convex parts so that the convex parts and the concave parts fit each other.

5. The EL panel according to claim 4, wherein the contact object is a desiccant.

6. The EL panel according to claim 4, wherein the contact object is a sealing adhesive.