KR-20260065695-A - Manufacturing device and manufacturing method of a display device

Abstract

According to one aspect of the present invention, a manufacturing device for a display device comprises a spraying unit having at least one nozzle that performs translational motion along a first axis and rotational motion around the first axis, and a cleaning unit having an upper surface arranged to be orthogonal to the first axis, wherein the cleaning unit includes at least one wiper arranged on at least one side of the at least one nozzle such that one surface faces the at least one nozzle, and a clamp that presses the at least one wiper toward the at least one nozzle along a second axis intersecting the first axis.

Inventors

• 황경환

Assignees

• 삼성디스플레이 주식회사

Dates

Publication Date

20260511

Application Date

20241101

Claims (20)

1. A spraying unit comprising at least one nozzle, which performs translational motion along a first axis and rotational motion around the first axis; and A cleaning unit having an upper surface arranged to be orthogonal to the first axis; comprising, The above cleaning unit is, At least one wiper disposed on at least one side of the at least one nozzle such that one surface faces the at least one nozzle; and A clamp that presses the at least one wiper toward the at least one nozzle along a second axis intersecting the first axis; comprising Manufacturing device for display devices.
2. In Article 1, The clamp moves translationally along the first axis while pressing the at least one wiper so that the at least one wiper contacts the at least one nozzle. Manufacturing device for a display device.
3. In Article 1, The above injection unit rotates about the first axis such that the at least one nozzle contacts the at least one wiper, Manufacturing device for display devices.
4. In Article 1, The above injection unit is configured such that the at least one nozzle moves translationally along the first axis adjacent to the at least one wiper but spaced apart from the at least one wiper. Manufacturing device for display devices.
5. In Article 1, The above injection unit translates along the first axis while the at least one nozzle is in contact with the at least one wiper, Manufacturing device for display devices.
6. In Article 1, The above at least one wiper translates along the second axis to contact the above at least one nozzle, Manufacturing device for a display device.
7. In Article 1, The above at least one wiper extends along a third axis intersecting the first axis and the second axis, Manufacturing device for a display device.
8. In Article 1, The above at least one wiper includes a first wiper and a second wiper, and The first wiper and the second wiper are spaced apart from each other along the second axis, Manufacturing device for display devices.
9. In Article 1, The above at least one nozzle includes a first nozzle and a second nozzle, and The first nozzle and the second nozzle are arranged symmetrically with respect to the first axis. Manufacturing device for a display device.
10. In Article 1, A discharge portion for receiving ink discharged through at least one nozzle; further comprising Manufacturing device for a display device.
11. A process of spraying a deposition material onto a substrate using a spraying unit comprising at least one nozzle; and A process for cleaning the above-mentioned spray part; comprising, The process of cleaning the above-mentioned spray part is, A process of moving the above injection unit along a first axis to position the at least one nozzle between a plurality of wipers; A process of wiping a first surface of the at least one nozzle by pressing the plurality of wipers toward the at least one nozzle with a clamp; and A process comprising rotating the above-mentioned spray unit around the first axis to wipe the second surface of the at least one nozzle; Method for manufacturing a display device.
12. In Article 11, Before the process of positioning the above at least one nozzle between the above plurality of wipers, A process of discharging a deposition material from at least one nozzle; further comprising Method for manufacturing a display device.
13. In Article 11, The process of wiping the first surface of the above-mentioned at least one nozzle is, A process of bringing the first surface and the plurality of wipers into contact; and A process comprising: translating the clamp along the first axis while the first surface and the plurality of wipers are in contact; Method for manufacturing a display device.
14. In Article 11, The process of wiping the second surface of the above-mentioned at least one nozzle is, A process of rotating the at least one nozzle around the first axis to bring the second surface into contact with at least one of the plurality of wipers; and A process comprising: translating the at least one nozzle along the first axis while at least one of the second surface and the plurality of wipers is in contact; Method for manufacturing a display device.
15. In Article 11, The first cleaning surface of each of the plurality of wipers faces the at least one nozzle when the at least one nozzle is positioned between the plurality of wipers. Method for manufacturing a display device.
16. In Article 15, In the process of wiping the first surface of the above-mentioned at least one nozzle, the first surface and the first cleaning surface are brought into contact, and In the process of wiping the second surface of the at least one nozzle, bringing the second surface and the first cleaning surface into contact. Method for manufacturing a display device.
17. In Article 15, After the process of wiping the second surface of the at least one nozzle, with the spraying unit rotated around the first axis, A process of translating the spraying unit along the first axis so that the at least one nozzle is directed toward a second cleaning surface opposite to the first cleaning surface; further comprising Method for manufacturing a display device.
18. In Article 17, A process further comprising: translating the plurality of wipers along a second axis intersecting the first axis to bring the second cleaning surface into contact with the third surface of the at least one nozzle. Method for manufacturing a display device.
19. In Article 18, A process of wiping the third surface by moving the at least one nozzle along the first axis while the second cleaning surface and the third surface are in contact; further comprising Method for manufacturing a display device.
20. In Article 11, The above at least one nozzle includes a first nozzle and a second nozzle, and The first nozzle and the second nozzle are arranged symmetrically with respect to the first axis. Method for manufacturing a display device.

Description

Manufacturing device and manufacturing method of a display device The present invention relates to an apparatus for manufacturing a display device and a method for manufacturing a display device. The display device may include a light-emitting diode as a display element. A display device may include a plurality of layers disposed on a substrate. The plurality of layers may be disposed using a deposition device, such as an inkjet device. A specific layer may be formed on the substrate by spraying a deposition material through nozzles provided in the inkjet device. After forming the plurality of layers of the display device using the inkjet device, the inkjet device may need to be cleaned. For example, the nozzles of the inkjet device may need to be cleaned. If the nozzles of the inkjet device are not cleaned, part or all of the nozzle may become clogged due to the deposition material remaining at the tip of the nozzle. If part or all of the nozzle becomes clogged, the accuracy of the spray position and shape may decrease when spraying the deposition material onto the substrate, which may lead to a decrease in the quality of the display device. Such cleaning of the nozzles can be achieved by contacting and rubbing the nozzle against a wiper. FIG. 1 is a perspective view of a manufacturing apparatus for a display device according to one embodiment of the present invention. FIG. 2 is a perspective view of a part of a manufacturing apparatus for a display device according to one embodiment of the present invention. FIG. 3 is a plan view of a portion of a cleaning unit according to one embodiment of the present invention. FIG. 4 is a perspective view of a portion of a cleaning unit according to one embodiment of the present invention. FIG. 5a is a bottom view of at least one nozzle according to one embodiment of the present invention. FIG. 5b is a plan view of at least one nozzle according to one embodiment of the present invention. FIG. 6 is a perspective view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 7a is a perspective view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 7b is a plan view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 8a is a perspective view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 8b is a plan view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 9a is a perspective view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 9b is a plan view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 10a is a perspective view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 10b is a plan view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 11a is a perspective view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 11b is a plan view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 12 is a perspective view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 13a is a perspective view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 13b is a plan view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 14 is a perspective view of one process of a method for manufacturing a display device according to one embodiment of the present invention. FIG. 15 is a plan view showing a display device manufactured using a manufacturing device for a display device according to one embodiment of the present invention. FIG. 16 is a cross-sectional view of a display device taken along the line XV-XV' of FIG. 15. The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawing