Electro luminescence display device

• US 7,189,990 B2
• Filed: 10/20/2004
• Issued: 03/13/2007
• Est. Priority Date: 10/21/2003
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yang, Jae Young, Kim, Woo Chan
• Primary Examiner(s): Crane; Sara
• Application Number:
  US10/968,186
• Publication Number:
  US 20050116221A1
• Time in Patent Office: 874 Days
• Field of Search: 257/40, 257/99, 257/100, 257/98
• US Class Current: 257/40
• 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 59/8722 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 59/874 including getter material or desiccant

Abstract

An electro luminescence display device is adapted for preventing the deterioration of an organic light-emitting layer by ultraviolet rays during a sealing process, and a transparent substrate; an organic light-emitting layer formed on the transparent substrate; a packaging plate bonded with the transparent substrate by a sealant to cover the organic light-emitting layer; and a light-intercepting member to prevent ultraviolet rays illuminated onto the sealant during bonding the transparent substrate with the packaging plate from being reflected by the packaging plate onto the organic light-emitting layer.

Claims

1. An electro luminescence display device, comprising:

a transparent substrate;

an organic light-emitting layer formed on the transparent substrate;

a packaging plate bonded with the transparent substrate by a sealant to cover the organic light-emitting layer; and

a light-intercepting member to prevent ultraviolet rays, illuminated onto the sealant and packaging plate during a bonding of the transparent substrate with the packaging plate, from being reflected onto the organic light-emitting layer.

2. The electro luminescence display device according to claim 1, wherein the light-intercepting member is a light-intercepting projected part which is projected toward the transparent substrate from the packaging plate.

3. The electro luminescence display device according to claim 2, wherein the light-intercepting projected part is located between the sealant and the organic light-emitting layer.

4. The electro luminescence display device according to claim 2, wherein the light-intercepting projected part is projected from the packaging plate and resides immediately adjacent to the organic light-emitting layer.

5. The electro luminescence display device according to claim 2, wherein the light-intercepting projected part is formed to have a sectional shape of a quadrangle or a triangle.

6. The electro luminescence display device according to claim 1, wherein the light-intercepting member is a plurality of light-intercepting projected parts that are projected toward the packaging plate from the transparent substrate.

7. The electro luminescence display device according to claim 6, wherein the light-intercepting projected parts are formed between the organic light-emitting layer and the end of the transparent substrate.

8. The electro luminescence display device according to claim 6, wherein each of the light-intercepting projected parts is formed to have a sectional shape of a quadrangle or a triangle.

9. The electro luminescence display device according to claim 1, wherein the light-intercepting member is an ultraviolet absorbing layer that is formed on a portion of the packaging plate facing the transparent substrate and absorbs the ultraviolet rays.

10. The electro luminescence display device according to claim 9, wherein the ultraviolet absorbing layer is formed at the edge of the packaging plate so as to face an area between the end of the transparent substrate and the edge of the organic light-emitting layer, and overlaps the edge of the organic light-emitting layer.