MASK AND MASK ASSEMBLY HAVING THE SAME

• US 20130298826A1
• Filed: 03/07/2013
• Published: 11/14/2013
• Est. Priority Date: 05/08/2012
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Hong, Jae-Min, Park, Sang-Hyuk, Jung, Woo-Young, Kwen, Ha-Nul
• Granted Patent: US 9,289,798 B2
• Time in Patent Office: Days
• US Class Current: 118/504
• 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: H10K 71/166 using selective deposition, e.g. using a mask

Abstract

A mask having both ends supported on a frame when a tensile force is applied in a first direction includes: a mask main body unit having a band form extended in the first direction; a plurality of pattern units including a plurality of pattern slits extended and opened in the first direction and separately disposed in a second direction crossing the first direction, and disposed in the mask main body unit in the first direction; and a plurality of dummy units including a plurality of dummy slits separated from each other with the pattern units therebetween, disposed in the mask main body unit, extended and opened in the first direction, and separately disposed in the second direction.

Claims

1. A mask having both ends supported on a frame when a tensile force is applied in a first direction, comprising:

a mask main body unit having a band form extended in the first direction;

a plurality of pattern units including a plurality of pattern slits extended and opened in the first direction, said pattern slits being separately disposed in a second direction crossing the first direction, and being disposed in the mask main body unit in the first direction; and

a plurality of dummy units including a plurality of dummy slits separated with respect to each other with the pattern units therebetween, said dummy slits being disposed in the mask main body unit, being extended and opened in the first direction, and being separately disposed in the second direction.

2. The mask of claim 1, wherein a length extended in the first direction of a dummy slit disposed in an outer area in the second direction from among the plurality of dummy slits is shorter than a length extended in the first direction of a dummy slit disposed in a center area in the second direction.

3. The mask of claim 2, wherein the dummy slit disposed in the outer area in the second direction is plural, and the length extended in the first direction becomes sequentially shorter as it approaches an outer side in the second direction.

4. The mask of claim 3, wherein a number of dummy slits that are disposed in the outer area in the second direction is in a range of 5 to 10.

5. The mask of claim 4, wherein five dummy slits are disposed in the outer area in the second direction;

and

wherein a length in the first direction between ends of neighboring dummy slits from among the dummy slits disposed in the outer area in the second direction is five times a length in the second direction between the neighboring dummy slits.

6. The mask of claim 5, wherein a width in the second direction of the dummy slit disposed in an outer area in the second direction is twice a width in the second direction of the dummy slit disposed in a center area in the second direction.

7. The mask of claim 4, wherein five dummy slits are disposed in the outer area in the second direction;

and

wherein a length in the first direction between ends of neighboring dummy slits from among the dummy slits that are disposed in the outer area in the second direction is six times a length in the second direction between the neighboring dummy slits.

8. The mask of claim 4, wherein five dummy slits are disposed in the outer area in the second direction;

and

wherein a length in the first direction between ends of neighboring dummy slits from among the dummy slits that are disposed in the outer area in the second direction is twice a length in the second direction between the neighboring dummy slits.

9. The mask of claim 4, wherein ten dummy slits are disposed in the outer area in the second direction;

and

wherein a length in the first direction between ends of neighboring dummy slits from among the dummy slit disposed in the outer area of the second direction is five times a length in the second direction between the neighboring dummy slits.

10. A mask assembly, comprising a frame including an opening and a mask as recited in claim 1, said mask being provided in the opening.

11. The mask assembly of claim 10, wherein a length extended in the first direction of a dummy slit disposed in an outer area in the second direction from among the plurality of dummy slits is shorter than a length extended in the first direction of a dummy slit disposed in a center area in the second direction.

12. The mask assembly of claim 11, wherein the dummy slit disposed in the outer area in the second direction is plural, and the length extended in the first direction becomes sequentially shorter as it approaches an outer side in the second direction.

13. The mask assembly of claim 12, wherein a number of dummy slits that are disposed in the outer area in the second direction is in a range of 5 to 10.

14. The mask assembly of claim 13, wherein five dummy slits are disposed in the outer area in the second direction;

and

wherein a length in the first direction between ends of neighboring dummy slits from among the dummy slits disposed in the outer area in the second direction is five times a length in the second direction between the neighboring dummy slits.

15. The mask assembly of claim 14, wherein a width in the second direction of the dummy slit disposed in an outer area in the second direction is twice a width in the second direction of the dummy slit disposed in a center area in the second direction.

16. The mask assembly of claim 13, wherein five dummy slits are disposed in the outer area in the second direction;

and

wherein a length in the first direction between ends of neighboring dummy slits from among the dummy slits that are disposed in the outer area in the second direction is six times a length in the second direction between the neighboring dummy slits.

17. The mask assembly of claim 13, wherein five dummy slits are disposed in the outer area in the second direction;

and

wherein a length in the first direction between ends of neighboring dummy slits from among the dummy slits that are disposed in the outer area in the second direction is twice a length in the second direction between the neighboring dummy slits.

18. The mask assembly of claim 13, wherein ten dummy slits are disposed in the outer area in the second direction;

and

wherein a length in the first direction between ends of neighboring dummy slits from among the dummy slit disposed in the outer area of the second direction is five times a length in the second direction between the neighboring dummy slits.