Manufacturing method for vapor deposition mask device and manufacturing apparatus for vapor deposition mask device

1. A method of manufacturing a vapor deposition mask device, the method comprising:

a preparing step of preparing a vapor deposition mask that includes a plurality of through-holes extending from a first surface to a second surface; and

a welding step of welding the vapor deposition mask to a front surface of a frame that includes the front surface and a back surface opposite to the front surface,

wherein the vapor deposition mask has a pair of ear parts constituting a pair of end portions,

wherein each of the pair of ear parts includes a weld section welded to the front surface of the frame, and an extension section located between the weld section and the end portion of the vapor deposition mask, and

wherein the welding step includes

a step of applying tension to the vapor deposition mask in such a manner that the second surface of the weld section is in close contact with the front surface of the frame, and the second surface of the extension section is at least partly located closer to the back surface of the frame than the front surface of the frame, and

a step of joining the weld section of the vapor deposition mask to the frame in a state in which the tension is applied to the vapor deposition mask,

wherein the frame includes an outside surface extending between the front surface and the back surface, and is provided with a connection surface that connects the front surface and the outside surface between the front surface and the outside surface, and

wherein a profile of the connection surface has at least partly an arcuate shape protuberant toward the vapor deposition mask, as viewed in a section along a normal direction of the first surface, and a radius of curvature of the arcuate shape is equal to or more than 0.1 mm.

2. The method of manufacturing a vapor deposition mask device according to claim 1 , wherein in the step of joining the weld section to the frame, laser light is applied from the first surface.

3. The method of manufacturing a vapor deposition mask device according to claim 1 , wherein in the step of applying the tension to the vapor deposition mask, the frame is moved in a normal direction of the first surface.

4. The method of manufacturing a vapor deposition mask device according to claim 1 , wherein in the step of applying the tension to the vapor deposition mask, the vapor deposition mask is supported by a jig.

5. The method of manufacturing a vapor deposition mask device according to claim 4 , wherein the jig is a clamp.

6. The method of manufacturing a vapor deposition mask device according to claim 5 , wherein in the step of applying the tension to the vapor deposition mask, the extension section of the vapor deposition mask is clamped by the clamp.

7. The method of manufacturing a vapor deposition mask device according to claim 6 , wherein the clamp includes a first clamp that clamps the extension section of one of the pair of car parts, and a second clamp that clamps the extension section of the other of the pair of ear parts.

8. The method of manufacturing a vapor deposition mask device according to claim 7 , wherein in the step of applying the tension to the vapor deposition mask, at least one of the first clamp and the second clamp is moved in a normal direction of the first surface.

9. The method of manufacturing a vapor deposition mask device according to claim 7 , wherein in the step of applying the tension to the vapor deposition mask, at least one of the first clamp and the second clamp is moved along a plane direction of the first surface.

10. An apparatus for manufacturing a vapor deposition mask device that includes a vapor deposition mask including a plurality of through-holes extending from a first surface to a second surface and a frame including a front surface facing the second surface of the vapor deposition mask and a back surface opposite to the front surface, the apparatus comprising:

a jig that supports the vapor deposition mask; and

a stage that is in close contact with the frame,

wherein the vapor deposition mask has a pair of ear parts constituting a pair of end portions,

wherein each of the pair of ear parts includes a weld section welded to the front surface of the frame, and an extension section located between the weld section and the end portion of the vapor deposition mask,

wherein the jig supports the extension section of the vapor deposition mask, and

wherein, in a state in which the jig supports the vapor deposition mask, the second surface of the weld section makes contact with the front surface of the frame, and the second surface of the extension section is at least partly located closer to the back surface of the frame than the front surface of the frame,

wherein the frame includes an outside surface extending between the front surface and the back surface, and is provided with a connection surface that connects the front surface and the outside surface between the front surface and the outside surface, and

wherein a profile of the connection surface has at least partly an arcuate shape protuberant toward the vapor deposition mask, as viewed in a section along a normal direction of the first surface, and a radius of curvature of the arcuate shape is equal to or more than 0.1 mm.

11. The apparatus for manufacturing a vapor deposition mask device according to claim 10 , wherein the stage is movable in a normal direction of the first surface.

12. The apparatus for manufacturing a vapor deposition mask device according to claim 10 , wherein the jig is a clamp that clamps the extension section of the vapor deposition mask.

13. The apparatus for manufacturing a vapor deposition mask device according to claim 12 , wherein the clamp has a first clamp that clamps the extension section of one of the pair of ear parts of the vapor deposition mask, and a second clamp that clamps the extension section of the other of the pair of ear parts.

14. The apparatus for manufacturing a vapor deposition mask device according to claim 13 , wherein at least one of the first clamp and the second clamp is movable in a normal direction of the first surface.

15. The apparatus for manufacturing a vapor deposition mask device according to claim 13 , wherein at least one of the first clamp and the second clamp is movable in a plane direction of the first surface.

16. The apparatus for manufacturing a vapor deposition mask device according to claim 10 , the apparatus further comprising:

a welding device to join the vapor deposition mask and the frame to each other.

17. A method of manufacturing a vapor deposition mask device,

the vapor deposition mask device including

a vapor deposition mask that has a first surface, a second surface opposite to the first surface, and a plurality of through-holes extending from the first surface to the second surface, and

a frame having a third surface and a fourth surface opposite to the third surface,

the method of manufacturing the vapor deposition mask device comprising:

a step of applying tension to the vapor deposition mask, in a state in which at least part of the second surface makes contact with the third surface, and at least part of the second surface of a part of the vapor deposition mask, which does not overlap with the frame as viewed from a normal direction of the first surface, is located closer to the fourth surface than the third surface; and

a step of welding the vapor deposition mask to the frame,

wherein the frame includes a fifth surface extending between the third surface and the fourth surface, and is provided with a sixth surface that connects the third surface and the fifth surface between the third surface and the fifth surface, and

wherein a profile of the sixth surface has at least partly an arcuate shape protuberant toward the vapor deposition mask, as viewed in a section along the normal direction of the first surface, and a radius of curvature of the arcuate shape is equal to or more than 0.1 mm.

18. The method of manufacturing a vapor deposition mask device according to claim 17 , wherein in the step of welding the vapor deposition mask to the frame, laser light is applied from the first surface.

19. The method of manufacturing a vapor deposition mask device according to claim 17 , wherein in the step of applying the tension to the vapor deposition mask, the frame is moved in the normal direction of the first surface.

20. The method of manufacturing a vapor deposition mask device according to claim 17 , wherein in the step of applying the tension to the vapor deposition mask, the vapor deposition mask is supported by a jig.

21. The method of manufacturing a vapor deposition mask device according to claim 20 , wherein the jig is a clamp.

22. The method of manufacturing a vapor deposition mask device according to claim 21 , wherein the clamp has a first clamp, and a second clamp located on an opposite side from the first clamp with respect to the vapor deposition mask.

23. The method of manufacturing a vapor deposition mask device according to claim 22 , wherein in the step of applying the tension to the vapor deposition mask, at least one of the first clamp and the second clamp is moved in the normal direction of the first surface.

24. The method of manufacturing a vapor deposition mask device according to claim 22 , wherein in the step of applying the tension to the vapor deposition mask, at least one of the first clamp and the second clamp is moved along a plane direction of the first surface of the vapor deposition mask.

25. An apparatus for manufacturing a vapor deposition mask device,

the vapor deposition mask device including

a vapor deposition mask that has a first surface, a second surface opposite to the first surface, and a plurality of through-holes extending from the first surface to the second surface, and

a frame having a third surface and a fourth surface opposite to the third surface,

the apparatus for manufacturing the vapor deposition mask device comprising:

a jig that supports the vapor deposition mask; and

a stage that is in close contact with the frame,

wherein at least part of the second surface of the vapor deposition mask makes contact with the third surface, and, at least part of the second surface of a part of the vapor deposition mask, which does not overlap with the frame as viewed from a normal direction of the first surface, is located closer to the fourth surface than the third surface,

wherein the frame includes a fifth surface extending between the third surface and the fourth surface, and is provided with a sixth surface that connects the third surface and the fourth surface between the third surface and the fourth surface, and

wherein a profile of the sixth surface has at least partly an arcuate shape protuberant toward the vapor deposition mask, as viewed in a section along the normal direction of the first surface, and a radius of curvature of the arcuate shape is equal to or more than 0.1 mm.

26. The apparatus for manufacturing a vapor deposition mask device according to claim 25 , wherein the stage is movable in the normal direction of the first surface.

27. The apparatus for manufacturing a vapor deposition mask device according to claim 25 , wherein the jig is a clamp.

28. The apparatus for manufacturing a vapor deposition mask device according to claim 27 , wherein the clamp has a first clamp, and a second clamp that is located on an opposite side from the first clamp with respect to the vapor deposition mask.

29. The apparatus for manufacturing a vapor deposition mask device according to claim 28 , wherein at least one of the first clamp and the second clamp is movable in the normal direction of the first surface.

30. The apparatus for manufacturing a vapor deposition mask device according to claim 28 , wherein at least one of the first clamp and the second clamp is movable along a plane direction of the first surface.

31. The apparatus for manufacturing a vapor deposition mask device according to claim 25 , the apparatus further comprising:

a welding device to join the vapor deposition mask and the frame to each other.