Light emitting panel and a light source for reducing deterioration of pixel

• US 7,843,127 B2
• Filed: 01/11/2007
• Issued: 11/30/2010
• Est. Priority Date: 09/22/2006
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Woo, Kyoung Don, Kim, Hak Su
• Primary Examiner(s): Patel; Nimeshkumar D
• Assistant Examiner(s): GREEN, TRACIE Y
• Application Number:
  US11/652,047
• Publication Number:
  US 20080074035A1
• Time in Patent Office: 1,419 Days
• Field of Search: 313/512, 313507-511
• US Class Current: 313/504
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/8423 Metallic sealing arrangements
• CPC Class Codes: H10K 50/846 comprising getter material or desiccants
• CPC Class Codes: H10K 59/10 OLED displays

Abstract

In light emitting panel, the light emitting panel includes a substrate, a pixel part and a protection part. The pixel part has more than or equal to two unit parts separated from each other. The protection has a concave part marking off neighboring unit parts.

Claims

1. A light emitting panel comprising:

a substrate;

pixel parts located apart from each other, formed on the substrate;

a protection part comprising an indented part, wherein both ends of the protection part are coupled with the substrate on which the pixel parts are formed by sealants so that a space is for med between the pixel parts and the protection part, and the indented part is concaved corresponding to areas between the pixel parts toward the substrate; and

a heat transmission part located between the pixel parts, and having a first surface directly contacted with the protection part at a location opposing to the indented part of the protection part and a second surface directly contacted with the substrate.

2. The light emitting panel of claim 1, wherein the indented part is separated from the substrate.

3. The light emitting panel of claim 1, wherein the heat transmission part is in contact with the indented part of the protection part.

4. The light emitting panel of claim 1, wherein the heat transmission comprises a thermal pad.

5. The light emitting panel of claim 4, wherein the heat transmission part comprises a getter.

6. The light emitting panel of claim 1, wherein the protection part comprises either a metal, a glass or a plastic.

7. The light emitting panel of claim 1, wherein the pixel section emits a white color.

8. The light emitting panel of claim 7, wherein the pixel section comprises a sub-pixel.

9. The light emitting panel of claim 8, the sub-pixel comprises an emission part comprising an organic material disposed between two electrodes.

10. A light source comprising:

a substrate;

pixel parts divided from each other, formed on the substrate;

a protection part comprising an indented part, wherein both ends of the protection part are coupled with the substrate on which the pixel parts are formed by sealants so that a space is for med between the pixel parts and the protection part, and the indented part is concaved corresponding to areas between the pixel parts toward the substrate; and

a heat transmission part located between the pixel parts, and having a first surface directly contacted with the protection part at a location opposing to the indented part of the protection part and a second surface directly contacted with the substrate.

11. The light source of claim 10, wherein the indented part is separated from the substrate.

12. The light source of claim 10, wherein the heat transmission part is in contact with the indented part of the protection part.

13. The light source of claim 10, wherein the heat transmission comprises a thermal pad.

14. The light source of claim 13, wherein the heat transmission part comprises a getter.

15. The light source of claim 10, wherein the protection part comprises either a metal, a glass or a plastic.

16. The light source of claim 10, wherein the pixel section emits a white color.

17. The light source of claim 16, wherein the pixel section comprises a sub-pixel.

18. The light source of claim 17, the sub-pixel comprises an emission part comprising an organic material disposed between two electrodes.

19. The light source of claim 16, the light source is used for a light apparatus or a back light unit.