Organic light emitting diode display having improved mechanical strength

• US 8,084,941 B2
• Filed: 09/11/2009
• Issued: 12/27/2011
• Est. Priority Date: 09/12/2008
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Mobile Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kang, Tae-Wook, Suh, Mi-Sook, Kim, Hun, Lhee, Zail, Cho, Seung-Yeon, Bang, Hyun-Chol
• Primary Examiner(s): Patel, Nimeshkumar
• Assistant Examiner(s): DIAZ, JOSE
• Application Number:
  US12/558,311
• Publication Number:
  US 20100066232A1
• Time in Patent Office: 837 Days
• Field of Search: 313498-512, 315/169.1, 315/169.3
• US Class Current: 313/512
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/8722 Peripheral sealing arrangements, e.g. adhesives, sealants

Abstract

The present invention is related to an OLED display, and one aspect of the OLED display includes a substrate member, an insulating layer formed on the substrate member, a metal wire formed on the insulating layer and having a plurality of joining enhancement holes, a sealant formed on the metal wire, and a sealing member attached on the sealant. In some embodiments, the joining enhancement holes efficiently suppress stripping of the sealant from the metal wire, since the sealant can integrally bond with the interlayer insulating layer through the joining enhancement holes. This feature may compensate for any weak bonding adherence between the sealant and metal wire. In some embodiments, the area of the joining enhancement holes may range from about 5% to about 60% of the entire area of the metal wire.

Claims

1. An organic light emitting diode (OLED) display comprising:

a substrate member;

an insulating layer formed on the substrate member;

a metal wire formed on the insulating layer and having a plurality of joining enhancement holes;

a sealant formed on and directly contacting the metal wire; and

a sealing member attached on the sealant.

2. The OLED display of claim 1, wherein the insulating layer and the sealant contact each other through the joining enhancement holes of the metal wire.

3. The OLED display of claim 2, wherein a ratio of an area where the joining enhancement holes are formed is greater than about 5% of an area of the metal wire.

4. The OLED display of claim 3, wherein a ratio of an area where the joining enhancement holes are formed ranges from about 5% to about 60% of an area of the metal wire.

5. The OLED display of claim 1, wherein the insulating layer and the sealant are respectively made of ceramic-based materials.

6. The OLED display of claim 4, wherein the sealing member is made of a ceramic-based material.

7. The OLED display of claim 1, wherein the joining enhancement holes are circular in shape.

8. The OLED display of claim 1, wherein the joining enhancement holes are uniform in size.

9. The OLED display of claim 1, wherein the joining enhancement holes are evenly distributed across the metal wire.

10. The OLED display of claim 1, wherein an area of the joining enhancement holes ranges from about 5% to about 60% of an area of the metal wire.

11. The OLED display of claim 9, wherein the area of the joining enhancement holes is about 10% of the area of the metal wire.