Organic light-emitting display apparatus

• US 9,431,629 B2
• Filed: 04/01/2014
• Issued: 08/30/2016
• Est. Priority Date: 08/19/2013
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Moon, Seung-Jun
• Primary Examiner(s): Kraig, William F
• Assistant Examiner(s): Chin, Edward
• Application Number:
  US14/242,686
• Publication Number:
  US 20150048319A1
• Time in Patent Office: 882 Days
• Field of Search: 257/E21.274, 257/E21.334, 257/E29.106, 257/E29.151, 257/E29.246, 257/E29.255, 257/E31.12, 257/100, 257/192, 257/194, 257/40, 257/607, 438/285, 438/513, 438/514, 438/706, 438/710, 438/99
• US Class Current: 1/1
• CPC Class Codes: H10K 50/80 Constructional details
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/8445 multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 Organic PV cells

Abstract

Provided is an organic light-emitting display apparatus including: a substrate having one or more side walls; a display unit positioned on the substrate; and an encapsulation layer deposited over the display unit and contacting each of the one or more side walls, wherein a height of an outer end portion of the encapsulation layer is less than that of each of the side walls.

Claims

1. An organic light-emitting display apparatus comprising:

a substrate including a recess and a side wall surrounding the recess, the side wall extending in unitary and continuous manner from the substrate;

a display unit positioned in the recess of the substrate; and

an encapsulation layer deposited over the display unit and contacting the side wall,

wherein a height of an outer end portion of the encapsulation layer is less than that of the side wall, the recess has a depth greater than a thickness of the outer end portion of the encapsulation layer, and a height of a central region of the encapsulation layer is greater than that of the side wall; and

wherein a barrier part is disposed between the side wall and the central region of the encapsulation layer.

2. The organic light-emitting display apparatus of claim 1, wherein a sum of the height of the outer end portion of the encapsulation layer and a height of the barrier part is less than that of the side wall.

3. The organic light-emitting display apparatus of claim 1, wherein the encapsulation layer comprises a first inorganic layer, a first organic layer disposed on the first inorganic layer, and a second inorganic layer which covers the first organic layer.

4. The organic light-emitting display apparatus of claim 3, wherein the barrier part is formed on the second inorganic layer and disposed in a space at least partially defined by the second inorganic layer and the side wall.

5. The organic light-emitting display apparatus of claim 4, wherein the barrier part is formed of a same material as that of the second inorganic layer.

6. The organic light-emitting display apparatus of claim 1, wherein the side wall includes an inner surface facing the recess, and the encapsulation layer contacts the inner surface of the side wall.

7. The organic light-emitting display apparatus of claim 3, wherein end portions of the first and second inorganic layers contact each other.

8. An organic light-emitting display apparatus comprising:

a substrate including a recess and a side wall surrounding the recess, the side wall extending in unitary and continuous manner from the substrate;

a display unit positioned in the recess of the substrate; and

an encapsulation layer deposited over the display unit and contacting the side wall,

wherein the side wall includes a plurality of at least approximately planar portions arranged in stepwise manner, the recess has a depth greater than a thickness of the outer end portion of the encapsulation layer, and a height of an outer end portion of the encapsulation layer is less than that of the side wall; and

wherein a barrier part is disposed between the side wall and the central region of the encapsulation layer.

9. The organic light-emitting display apparatus of claim 8, wherein a sum of the height of the outer end portion of the encapsulation layer and a height of the barrier part is less than that of the side wall.

10. The organic light-emitting display apparatus of claim 8, wherein the encapsulation layer comprises a first inorganic layer, a first organic layer disposed on the first inorganic layer, and a second inorganic layer which covers the first organic layer.

11. The organic light-emitting display apparatus of claim 10, wherein the barrier part is disposed on the second inorganic layer and spaced apart from the first organic layer.

12. The organic light-emitting display apparatus of claim 10, wherein the first inorganic layer and the second inorganic layer are disposed on one or more of the at least approximately planar portions.

13. The organic light-emitting display apparatus of claim 12, wherein the barrier part is disposed on the second inorganic layer and spaced apart from the first organic layer.

14. The organic light-emitting display apparatus of claim 13, wherein the barrier part is disposed of a same material as that of the second inorganic layer.

15. The organic light-emitting display apparatus of claim 8, wherein the side wall includes an inner surface facing the recess, and the encapsulation layer contacts the inner surface of the side wall.

16. The organic light-emitting display apparatus of claim 10, wherein end portions of the first and second inorganic layers contact each other.