Display Apparatus and Method of Fabricating the Same

• US 20120235170A1
• Filed: 10/25/2011
• Published: 09/20/2012
• Est. Priority Date: 03/15/2011
• 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: Lee, Kyung-Jun
• Granted Patent: US 8,878,202 B2
• Time in Patent Office: Days
• US Class Current: 257/88
• CPC Class Codes: B05B 12/20 Masking elements, i.e. elements defining uncoated areas on an object to be coated
• CPC Class Codes: B05C 21/005 Masking devices stencils B05C17/06; masking devices for which the means for applying liquids or other fluent material is spraying or is not important B05B12/20
• CPC Class Codes: C23C 14/042 using masks
• CPC Class Codes: H01J 11/48 Sealing, e.g. seals specially adapted for leading-in conductors
• CPC Class Codes: H01J 9/24 Manufacture or joining of vessels, leading-in conductors or bases
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants

Abstract

A display apparatus comprises a first substrate, a second substrate separated from the first substrate and facing the first substrate, and a first sealing portion interposed between the first substrate and the second substrate, wherein the first substrate comprises a first region overlapped by the second substrate and a second region not overlapped by the second substrate, and the first sealing portion is situated on a boundary between the first region and the second region and comprises one or more injection holes.

Claims

1. A display apparatus, comprising:

a first substrate;

a second substrate separated from the first substrate and facing the first substrate; and

a first sealing portion interposed between the first substrate and the second substrate;

wherein the first substrate comprises a first region overlapped by the second substrate and a second region not overlapped by the second substrate, and the first sealing portion is situated on a boundary between the first region and the second region and comprises at least one injection hole.

2. The display apparatus of claim 1, further comprising a stiffener disposed between the first region of the first substrate and the second substrate and contacting the first sealing portion.

3. The display apparatus of claim 2, wherein the stiffener fills at least part of each of the injection holes.

4. The display apparatus of claim 1, further comprising a second sealing portion disposed between the first region of the first substrate and the second substrate for bonding the first substrate and the second substrate together, wherein the stiffener is disposed between the first sealing portion and the second sealing portion.

5. The display apparatus of claim 4, wherein the first region of the first substrate comprises a display region in which at least one display circuit is formed, a peripheral circuit is disposed in the second region of the first substrate, and the second sealing portion surrounds the display region.

6. The display apparatus of claim 5, wherein at least one organic light-emitting diode is disposed in the display region.

7. The display apparatus of claim 1, wherein the first sealing portion extends in a direction which is parallel to the boundary.

8. The display apparatus of claim 1, wherein the first sealing portion comprises a plurality of sealing patterns separated from each other, and said at least one injection hole is defined by at least one space between the sealing patterns.

9. The display apparatus of claim 1, wherein said at least one injection hole is partially defined by at least one of a surface of the first substrate and a surface of the second substrate which is exposed by the first sealing portion.

10. The display apparatus of claim 1, wherein the first sealing portion further comprises a sealing member, and said at least one injection hole is disposed inside the sealing member.

11. A display apparatus, comprising:

a first substrate;

a second substrate disposed above the first substrate and overlapping at least part of the first substrate; and

a first sealing portion disposed on the first substrate and having at least one injection hole;

wherein an outer surface of the first sealing portion is aligned with a side surface of the second substrate in a first direction.

12. The display apparatus of claim 11, wherein the first substrate comprises a first region overlapped by the second substrate and a second region not overlapped by the second substrate, and the outer surface of the first sealing portion is aligned with a boundary between the first region and the second region.

13. The display apparatus of claim 12, wherein an inner surface of the first sealing portion is disposed within the first region.

14. The display apparatus of claim 12, further comprising:

a second sealing portion disposed in the first region of the first substrate for bonding the first substrate and the second substrate together; and

a stiffener filling at least part of each said at least one injection hole;

wherein the stiffener is disposed between the first sealing portion and the second sealing portion.

15. The display apparatus of claim 12, wherein the first sealing portion extends in a second direction parallel to the boundary and perpendicular to the first direction.

16. The display apparatus of claim 11, wherein the first sealing portion further comprises a plurality of sealing patterns separated from each other, and said at least one injection hole is defined by at least one space between the sealing patterns.

17. The display apparatus of claim 11, wherein said at least one injection hole is partially defined by at least one of a surface of the first substrate and a surface of the second substrate which is exposed by the first sealing portion.

18. The display apparatus of claim 11, wherein the first sealing portion further comprises a sealing member, and said at least one injection hole is disposed inside the sealing member.

19. A method of fabricating a display apparatus, the method comprising the steps of:

preparing a first substrate and a second substrate on which a cutting line and a first sealing portion, extending along the cutting line and having at least one injection hole, are formed;

placing the second substrate so as to overlap at least part of the first substrate; and

cutting the second substrate and the first sealing portion along the cutting line.

20. The method of claim 19, wherein the step of placing the second substrate so as to overlap at least part of the first substrate comprises placing the second substrate so that the first sealing portion is disposed between the first substrate and the second substrate.

21. The method of claim 20, further comprising the step of injecting a stiffener between the first substrate and the second substrate through said at least one injection hole.

22. The method of claim 21, further comprising the step of placing a second sealing portion on the second substrate, wherein the stiffener is disposed between the first sealing portion and the second sealing portion.

23. The method of claim 22, wherein the step of cutting the first sealing portion along the cutting line comprises cutting the first sealing portion in half.