MASK AND MASK ASSEMBLY

• US 20140065355A1
• Filed: 08/21/2013
• Published: 03/06/2014
• Est. Priority Date: 09/03/2012
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: KANG, Taek-Kyo
• Granted Patent: US 9,570,715 B2
• Time in Patent Office: Days
• US Class Current: 428/136
• CPC Class Codes: C23C 14/042 using masks
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/166 using selective deposition, e.g. using a mask
• CPC Class Codes: Y10T 428/24314 Slit or elongated
• CPC Class Codes: Y10T 428/24322 Composite web or sheet

Abstract

A mask supported at a frame when a tensile force is applied in a first direction is provided. The mask includes a mask main body in a band shape extended in the first direction, and a plurality of pattern openings formed in the mask main body. the mask main body has ends supported by the frame, and the pattern opening are arranged in the first direction. The mask further includes a dummy opening provided between the pattern openings and one of the ends of the mask main body. The dummy opening has a form that is different from forms of the pattern openings.

Claims

1. A mask supported at a frame when a tensile force is applied in a first direction, comprising:

a mask main body in a band shape extended in the first direction, the mask main body having ends supported by the frame;

a plurality of pattern openings formed in the mask main body, the pattern openings arranged in the first direction; and

a dummy opening provided between the pattern openings and one of the ends of the mask main body, and having a form that is different from forms of the pattern openings.

2. The mask of claim 1, wherein the dummy opening includes a plurality of sub-dummy openings.

3. The mask of claim 2, wherein the dummy opening includes:

a first sub-dummy opening provided between the pattern openings and the one of the ends of the mask main body; and

a second sub-dummy opening provided between the first sub-dummy opening and the pattern openings.

4. The mask of claim 3, wherein the first sub-dummy opening and the second sub-dummy opening have a same shape and neighbor each other.

5. The mask of claim 4, wherein the first sub-dummy opening and the second sub-dummy opening respectively have a rectangular shape having a longer side in a second direction crossing the first direction.

6. The mask of claim 3, wherein the dummy opening further includes a third sub-dummy opening provided between the first sub-dummy opening and the second sub-dummy opening.

7. The mask of claim 6, wherein the first sub-dummy opening, the second sub-dummy opening, and the third sub-dummy opening respectively have a same rectangular shape having a longer side extended in a second direction crossing the first direction.

8. The mask of claim 2, wherein the dummy opening includes a fourth sub-dummy opening and a fifth sub-dummy opening disposed to neighbor each other between both edges of the mask main body, the fourth and fifth sub-dummy openings arranged in a second direction crossing the first direction.

9. The mask of claim 8, wherein the fourth sub-dummy opening and the fifth sub-dummy opening respectively have a same shape, and neighbor each other.

10. The mask of claim 9, wherein the fourth sub-dummy opening and the fifth sub-dummy opening respectively have a rectangular shape having a longer side extended in the first direction.

11. The mask of claim 8, wherein the dummy opening further includes a sixth sub-dummy opening provided between the pattern openings and a set of the fourth sub-dummy opening and the fifth sub-dummy opening.

12. The mask of claim 11, wherein the fourth sub-dummy opening and the fifth sub-dummy opening respectively have a same rectangular shape having a longer side extended in the first direction, and the sixth sub-dummy opening has a rectangular shape having a longer side extended in a second direction.

13. The mask of claim 1, wherein the pattern openings have a stripe or dot form.

14. A mask assembly comprising:

a frame including an opening; and

at least one mask disposed on the opening of the frame, the at least one mask comprising;

a mask main body in a band shape extended in the first direction, the mask main body having ends supported by the frame;

a plurality of pattern openings formed in the mask main body, the pattern openings arranged in the first direction; and

a dummy opening provided between the pattern openings and one of the ends of the mask main body, and having a form that is different from forms of the pattern openings.