Mask and mask assembly

Patent metadata

Field	Value
Publication number	US-9711724-B2
Application number	US-201414305238-A
Country	US
Kind code	B2
Filing date	Jun 16, 2014
Priority date	Dec 18, 2013
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A mask has both ends supported on a frame while tensile force is applied in a first direction. The mask includes: a mask main body having a band shape which is extended in the first direction; a plurality of active patterns spaced apart in the first direction from each other in the mask main body and having a first shape; a plurality of first ribs surrounding borders of the plurality of respective active patterns and defining a shape of the active pattern; and a plurality of first dummy patterns surrounding the plurality of first ribs, respectively, and having a second shape.

First claim

What is claimed is:

1. A mask having opposite ends supported on a frame while tensile force is applied in a first direction, said mask comprising:
a mask main body having a band shape which is extended in the first direction;
a plurality of active patterns spaced apart from each other in the first direction formed in the mask main body, each of the active patterns having a first shape, each active pattern including a plurality of holes;
a plurality of first ribs, each of the first ribs enclosing a respective one of the plurality of active patterns, said each of the first ribs defining a shape of said respective one of the active patterns; and
a plurality of first dummy patterns, each of the first dummy patterns completely enclosing a respective one of the plurality of first ribs, an outer shape of each first dummy pattern having a second shape, each first dummy pattern including a plurality of holes.

2. The mask of claim 1 , wherein the second shape is a quadrangular shape.

3. The mask of claim 2 , wherein the first shape is a circular shape.

4. The mask of claim 2 , wherein the first shape is a polygonal shape.

5. The mask of claim 1 , wherein said each of the active patterns and said each of the first dummy patterns has one of a stripe pattern form and a dot pattern form.

6. The mask of claim 1 , wherein said each of the first ribs has a larger thickness than the active patterns and the first dummy patterns.

7. The mask of claim 6 , wherein said each of the first ribs includes at least one groove which is dented from a bottom thereof.

8. The mask of claim 6 , wherein said each of the first ribs includes at least one groove which is dented from a top thereof.

9. The mask of claim 1 , further comprising a plurality of second ribs and a plurality of second dummy patterns, each second rib being positioned between a respective one of the first ribs and a respective one of the first dummy patterns, each second dummy pattern, which includes a plurality of holes, being positioned between a respective one of the first ribs and a respective one of the second ribs.

10. The mask of claim 9 , wherein said each second rib has an extended shape of said respective one of the first ribs.

11. The mask of claim 10 , wherein said each active pattern, said each first dummy pattern, and said each second dummy pattern has one of a stripe pattern form and a dot pattern form.

12. The mask of claim 9 , wherein said each active pattern, said each first dummy pattern, and said each second dummy pattern has one of a stripe pattern form and a dot pattern form.

13. The mask of claim 9 , wherein said each active pattern has a pattern which is different from a pattern of the first dummy pattern and a pattern of the second dummy pattern.

14. A mask assembly comprising at least one mask as recited in claim 1 , said mask assembly further comprising a frame including an opening, said at least one mask being positioned in the opening.

15. The mask assembly of claim 14 , wherein the mask is provided in plural; and
wherein the plurality of masks are disposed in the opening in a second direction which crosses the first direction.

Assignees

• Samsung Display Co Ltd

Inventors

• Baek Dae Won

Classifications

• H01L51/0011 Primary

  Electricity · mapped topic

• B05C21/005

  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 title

• C23C14/042 Primary

  using masks · CPC title

• C23C14/04

  Coating on selected surface areas, e.g. using masks · CPC title

• H10K71/00 Primary

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title