Frame and mask assembly having the same

Patent metadata

Field	Value
Publication number	US-9953828-B2
Application number	US-201313918352-A
Country	US
Kind code	B2
Filing date	Jun 14, 2013
Priority date	Aug 3, 2012
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

A frame and a mask assembly having the same. The frame supports both ends of each unit mask, each unit mask applying a tensile force in a first direction. The frame includes a frame main body part forming an opening exposing the unit mask, and a first through hole formed by passing through the frame main body part.

First claim

What is claimed is:

1. A frame supporting opposite ends of each of a plurality of unit masks to which a tensile force is applied in a first direction, the frame comprising:
a frame main body part comprising an opening exposing the unit masks, the frame main body part having a pair of sides that extend in the first direction and a pair of sides that extend in a second direction orthogonal to the first direction;
a first through hole arranged by passing through the frame main body part in a thickness direction of the frame main body part that is orthogonal to each of the first and second directions;
a second through hole arranged by passing through the frame main body part;
a first sloping side arranged between the second through hole and the opening to face the second through hole and inversely tapered from an upper surface of the frame main body part to a lower surface of the frame main body part; and
a second sloping side arranged between the second through hole and an edge of the frame main body part to face the second through hole and tapered from the upper surface of the frame main body part to the lower surface of the frame main body part.

2. The frame of claim 1 , wherein the plurality of unit masks are arranged in the second direction crossing the first direction, the unit masks being fixed to the upper surface of the frame main body part.

3. The frame of claim 2 , wherein the frame main body part comprises:
two long sides opposing each other and extending in the second direction with the opening therebetween;
two short sides opposing each other and extending in the first direction with the opening therebetween; and
four corners connecting the long sides to the short sides, wherein each of the plurality of unit masks are attached to the two long sides only and not to any of the two short sides.

4. The frame of claim 3 , wherein the first through hole is arranged in a central area of each of the long sides and is spaced apart from each of the opening and an outer edge of the frame in the first direction.

5. The frame of claim 4 , wherein the first through hole has a quadrangular shape extending in the second direction, the first through hole being spaced apart in the first direction from the opening by a portion of one of the long sides that is external to the first through hole.

6. The frame of claim 4 , further comprising a first groove recessed from the lower surface of the frame main body part and extending in the second direction from the first through hole to one of the corners that is adjacent to the first through hole, the first groove being spaced apart from the opening in the first direction by a portion of one of the long sides that is external to each of the first groove and the first through hole.

7. The frame of claim 6 , wherein the frame includes a plurality of first grooves.

8. The frame of claim 7 , wherein a width of each of the plurality of first grooves taken in the first direction increases from the first through hole to a corresponding one of the corners.

9. The frame of claim 4 , wherein the first through hole comprises a plurality of first sub-through holes that are spaced apart from each other by a center of a corresponding one of the long sides.

10. The frame of claim 3 , wherein the second through hole is arranged by passing through the short sides.

11. The frame of claim 10 , wherein the second through hole extends from one of the corners to another of the corners at opposite ends of a corresponding one of the short sides.

12. The frame of claim 11 , wherein the second through hole has a quadrangular shape extending in the first direction.

13. The frame of claim 11 , wherein the second through hole includes a plurality of second sub-through holes that are spaced apart from each other by a center of the short side.

14. A frame supporting opposite ends of a unit mask to which tensile force is applied in a first direction, the frame comprising:
a frame main body part comprising an opening exposing the unit mask, wherein the frame main body part comprises:
two long sides opposing each other and extending in the second direction with the opening therebetween,
two short sides opposing each other and extending in the first direction with the opening therebetween, and
four corners connecting the long sides to the short sides;
a first through hole arranged by passing through the frame main body part, wherein a plurality of unit masks is arranged in a second direction crossing the first direction, the unit masks being fixed to an upper surface of the frame main body part;
a second through hole arranged by passing through the short sides;
a first sloping side arranged between the second through hole and the opening to face the second through hole and inversely tapered from the upper surface of the frame main body part to a lower surface of the frame main body part; and
a second sloping side arranged between the second through hole and an edge of the frame main body part to face the second through hole and tapered from the upper surface of the frame main body part to the lower surface of the frame main body part.

15. The frame of claim 14 , wherein a length of each of the first sloping side and the second sloping side extending in the first direction may be the same as a length of the second through hole.

16. The frame of claim 14 , wherein the first sloping side is spaced apart from the opening, and the second sloping side extends from the edge of the frame main body part.

17. The frame of claim 10 , further comprising:
a second groove arranged between the second through hole and the opening, facing the second through hole, and being recessed from the lower surface of the frame main body part; and
a third groove arranged between the second through hole and an outer edge of the frame main body part, facing the second through hole, and being recessed from the upper surface of the frame main body part.

18. The frame of claim 17 , wherein a length taken in the first direction of each of the second groove and the third groove is the same as that of the second through hole.

19. The frame of claim 17 , wherein the second groove is spaced apart from the opening, and the third groove is spaced apart from the edge of the frame main body part.

20. A mask assembly, comprising:
a unit mask;
a frame comprising:
a frame main body part comprising an opening exposing the unit mask, the frame main body part having a pair of sides that extend in a first direction and a pair of sides that extend in a second direction orthogonal to the first direction;
a first through hole arranged by passing through the frame main body part in a thickness direction of the frame main body part that is orthogonal to each of the first and second directions;
a second through hole arranged by passing through the frame main body part;
a first sloping side arranged between the second through hole and the opening to face the second through hole and inversely tapered from an upper surface of the frame main body part to a lower surface of the frame main body part; and
a second sloping side arranged between the second through hole and an edge of the frame main body part to face the second through hole and tapered from the upper surface of the frame main body part to the lower surface of the frame main body part, wherein the opposite ends of the unit mask are supported by the frame by applying tensile force in the first direction.

Assignees

• Samsung Display Co Ltd

Inventors

• Oh Yoon-Chan
• Lee Choong-Ho
• Jeong Da-Hee

Classifications

• H10P14/00 Primary

  Formation of materials, e.g. in the shape of layers or pillars · CPC title

• C23C14/042 Primary

  using masks · CPC title

• H10K50/84 Primary

  Passivation; Containers; Encapsulations · CPC title

• H01L21/02104 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