Display device with protecting layer for getter layer

• US 8,319,423 B2
• Filed: 12/13/2006
• Issued: 11/27/2012
• Est. Priority Date: 10/24/2006
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Lee, Jung Hwan, Lim, Kwang Su
• Primary Examiner(s): Mai, Anh
• Assistant Examiner(s): QUARTERMAN, KEVIN J
• Application Number:
  US11/637,775
• Publication Number:
  US 20080093990A1
• Time in Patent Office: 2,176 Days
• Field of Search: 313498-512, 313/553, 313/558
• US Class Current: 313/506
• CPC Class Codes: H10K 50/846 comprising getter material or desiccants
• CPC Class Codes: H10K 59/874 including getter material or desiccant

Abstract

The present invention relates to a display device preventing a getter layer from contacting elements disposed in the display device, and an embodiment of the present invention may be achieved in a whole or in part by a display device comprising: A substrate; A pixel part disposed on the substrate; A cap comprising a first region attached on the substrate; and a second region having a position different from a position of the first region, connected with the first region, and corresponding to the pixel part; A getter layer disposed on the second region of the cap; and A protecting layer disposed on the getter layer.

Claims

1. A display device, comprising:

a substrate;

a pixel part disposed on the substrate;

a cap comprising;

a first region attached on the substrate; and

a second region having a position different from a position of the first region, connected with the first region, and corresponding to the pixel part;

a getter layer disposed on and directly contacting the second region of the cap; and

a protecting layer disposed on a central portion of the getter layer corresponding to the pixel part, such that the getter layer is disposed between the cap and the protecting layer to prevent the central portion of the getter layer from contacting the pixel part,

wherein a size of the protecting layer is smaller than a size of the getter layer, such that some portion of the getter layer is exposed from the protecting layer to a space encapsulated by the cap.

2. The display device according to claim 1, wherein the protecting layer is made from an insulating material.

3. The display device according to claim 2, wherein the insulating material is an epoxy base material or polyimide base material.

4. The display device according to claim 3, wherein the epoxy base material includes at least one of 1,4-BDGEDA (butanediol diglycidyl ether diacrylate), polybutadien, polybutadien acrylate, PEGDA (polyethylene glycol diacrylate), and a mixture of TMPTA (trimethylolpropane triacrylate) with epoxy acrylate.

5. The display device according to claim 1, wherein a length of the protecting layer is shorter than a length of the getter layer.

6. The display device according to claim 1, wherein a width of the protecting layer is shorter than a width of the getter layer.

7. The display device according to claim 6, wherein edges of the protecting layer are disposed within an area of the getter layer.

8. The display device according to claim 1, wherein a width ratio of the getter layer and the protecting layer is between 10:

1 and 2;

1.

9. The display device according to claim 1, wherein a thickness ratio of the getter layer and the protecting layer is between 10:

1 and 7;

1.

10. The display device according to claim 1, wherein a thickness of a part of the protecting layer is different from a thickness of a remaining part of the protecting layer.

11. The display device according to claim 10, wherein a thickness of the protecting layer increases in a direction from an area corresponding to a center area of the second region to edges of the protecting layer.

12. The display device according to claim 10, wherein a thickness of the protecting layer increases in a direction from a center area of the protecting layer to edges of the protecting layer.

13. The display device according to claim 1, wherein the second region is a plane region.

14. The display device according to claim 1, wherein the second region comprises a plurality of plane regions having different positions.

15. The display device according to claim 1, wherein the protecting layer has at least one aperture on a surface of the protecting layer.

16. The display device according to claim 1, wherein the protecting layer is a continuous layer.

17. The display device according to claim 1, wherein the pixel part comprises an organic light-emitting layer.