Division mask and method of assembling mask frame assembly by using the same
View Patent ↗In a division mask and a method of assembling a mask frame assembly by using the same, the division mask includes a stick body on which deposition patterns are formed, and a clamping portion which extends from the stick body outward along a longitudinal direction of the stick body, the clamping portion increasing in width from the stick body. By using this structure, since tight tension is exerted on the division mask during the assembly of a mask frame assembly due to an extension portion of the clamping portion, creases are prevented from being formed on the division mask, thus obtaining a precise mask frame assembly.
1. A division mask, comprising:
a stick body on which deposition patterns are formed; and
a pair of clamping portions extending from opposite ends of the stick body outward along a longitudinal direction of the stick body, each of the clamping portions comprise an extension portion having a width that increases from the stick body from a width equal to that of the stick body to a width that is greater than that of the stick body.
2. The division mask of claim 1 , further comprising connection portions between the stick body and each of the clamping portions, each of the connection portions being welded onto a frame of a mask frame assembly.
3. The division mask of claim 2 , wherein the clamping portions are removed after the connection portions are welded onto the frame.
4. A method of assembling of a mask frame assembly, comprising:
preparing a plurality of division masks, each comprising a stick body on which deposition patterns are formed and a pair of clamping portions which extend from the stick body outward along a longitudinal direction of the stick body, wherein the clamping portions each comprise an extension portion having a width that increases from a width equal to that of the stick body to a width that is substantially larger than the width of the stick body;
preparing a frame to which the plurality of division masks are attached; and
welding the division masks onto the frame while tension is exerted on the division masks by holding the clamping portions of each of the division masks.
5. The method of claim 4 , further comprising cutting the clamping portions of the division masks upon the welding being completed to prevent the clamping portions of one of the division masks from interfering with clamping portions of a neighboring one of the division masks.
6. The method of claim 4 , wherein each clamping portion has a ‘Y’ shape.
7. The method of claim 4 , wherein the welding of the division masks onto the frame comprises:
welding a first of the plurality of division masks to the frame while a tensile force is being applied to the clamping portions; then
cutting and removing the clamping portions of the first division mask upon the welding of the first division mask being completed; then
welding a second of the plurality of division masks to the frame while a tensile force is being applied to the clamping portions, the second division mask being arranged adjacent to the first division mask on the frame; and then
cutting and removing the clamping portions of the second division mask upon the welding of the second division mask being completed.
8. The method of claim 7 , wherein a remaining of the division masks are sequentially welded to the mask frame.
9. The method of claim 4 , wherein each of the division masks further comprises connection portions arranged between the stick body and each of the clamping portions, wherein the connection portions of each division mask are welded to the mask frame.
10. The method of claim 4 , the clamping portions to allow for greater contact area between each division mask and a tensioner used to apply tension, so that each division mask can be subjected to a greater tensile force upon the welding of the division mask to the mask frame, resulting in a smaller crease height of the division mask.
11. The method of claim 7 , wherein the stick body of the second division mask is in contact with the stick body of the first division mask, wherein the clamping portions of the first division mask are removed prior to the welding of the second division mask to prevent the clamping portions of the first division mask from interfering with the clamping portions of the second division mask.
12. A mask frame assembly, comprising:
a mask frame arranged about an opening; and
a plurality of division masks arranged in parallel and being welded to the frame, each division mask including a stick body including a plurality of deposition patterns arranged within the opening of the mask frame, wherein each division mask is welded to the mask frame while clamping portions on opposite ends of the stick body of each division mask are pulled outward with a tight tension, each of the clamping portions increasing in width with distance away from the stick body to a width greater than that of the stick body.
13. The mask frame assembly of claim 12 , wherein the stick body of the each division mask is in contact with the stick body of each adjacent division mask, wherein the clamping portions of each division mask are removed to prevent interference with clamping portions of adjacent division masks.