Inkjet apparatus

Abstract

An inkjet apparatus includes: a first plate, wherein the first plate is movable; and a carriage module supported by the first plate and configured to receive a head set including an inkjet head, where the carriage module includes: a first carriage portion disposed above the first plate; the second bracket part is movable relative to the first bracket part and is arranged below the first bracket part and above the first plate; and a third contact plate movable relative to the first bracket portion and disposed under the second bracket portion and the first plate.

Description

Technical Field

[0001] Embodiments relate to inkjet devices. Background Art

[0002] A display device is a device that displays an image for providing visual information to a user. Among various types of display devices, organic light emitting diode (OLED) displays have become increasingly popular.

[0003] Inkjet printing technology can be used in the manufacturing process of display devices, and in particular in the production of OLED displays. Inkjet printing offers advantages in terms of precision, cost-effectiveness, and scalability in the manufacturing process. Inkjet printing can provide precise deposition of ink, produce fewer stray particles, and increase yield relative to conventional mask-based techniques. Utility Model Content

[0004] An embodiment provides an inkjet apparatus configured to quickly and accurately replace an inkjet head.

[0005] An inkjet device may include: a first plate, wherein the first plate is movable; and a carriage module supported by the first plate and configured to receive a head group including an inkjet head. The carriage module may include: a first carriage portion disposed above the first plate; a second carriage portion movable relative to the first carriage portion and disposed below the first carriage portion and above the first plate; and a third contact plate movable relative to the first carriage portion and disposed below the second carriage portion and the first plate.

[0006] In one embodiment, the head group may further include: a first contact plate; and a second contact plate disposed below the first contact plate, wherein the second bracket portion of the bracket module may be detachably coupled to the first contact plate.

[0007] An inkjet device according to an embodiment may include: a head group including an inkjet head, a first contact plate, and a second contact plate disposed below the first contact plate; an ink supply module; a first plate; and a carriage module disposed on the first plate and configured to receive the head group. The carriage module may include: a first carriage portion connected to the ink supply module; a second carriage portion disposed below the first carriage portion and detachably coupled to the first contact plate; and a third contact plate disposed below the second carriage portion and detachably coupled to the inkjet head.

[0008] In one embodiment, the bracket module may further include: a first axis, configured to connect the first bracket part and the second bracket part, and configured to move the second bracket part and the third contact plate toward the first bracket part; and a second axis, configured to connect the second bracket part and the third contact plate.

[0009] In an embodiment, the first contact plate may include a first protrusion protruding from a side surface of the first contact plate in a first direction substantially parallel to an upper surface of the first plate, and the second bracket portion may include a first recessed portion recessed in an upper surface of the second bracket portion.

[0010] In one embodiment, the second contact plate may include a second recessed portion recessed in a direction opposite to the first direction, and the third contact plate may include a second protrusion protruding in the direction opposite to the first direction.

[0011] In an embodiment, the first protrusion may cooperate with the first recess, and the second protrusion may be coupled to the second recess.

[0012] In one embodiment, the head group may further include a plurality of nozzles, the plurality of nozzles including a nozzle surface protruding from a lower portion of the third contact plate, and the nozzle surface may be arranged in a first direction substantially parallel to an upper surface of the first plate and in a second direction substantially parallel to the upper surface of the first plate and intersecting the first direction.

[0013] In an embodiment, thicknesses of the nozzle surfaces in a third direction perpendicular to a plane defined by the first direction and the second direction may be substantially equal to each other.

[0014] In one embodiment, the third contact plate of the bracket module may include a plurality of first holes, the second contact plate of the head group may include a plurality of second holes, the first plate may include a plurality of third holes and a plurality of fourth holes, the plurality of first holes and the plurality of third holes may be connected to each other via a first connecting member, the third contact plate and the first plate may be connected to each other via the first connecting member, the plurality of second holes and the plurality of fourth holes may be connected to each other via a second connecting member, the second contact plate and the first plate may be connected to each other via the second connecting member, and the second contact plate and the third contact plate may be spaced apart in parallel with each other.

[0015] In the inkjet device according to an embodiment of the present disclosure, a head group and a carriage module corresponding to the head group may be included, and the head group may be connected to the carriage module. Accordingly, the head group may be connected to a position corresponding to a connecting portion of the carriage module. Therefore, the processing time and cost of the inkjet printing process may be reduced.

[0016] In addition, by fixing the direction of the replacement head group to the normal direction of the first plate with the carriage module, the ink tube of the head group can be connected to the first carriage part of the carriage module. Therefore, assembly defects can be reduced or prevented, and ink leakage can be reduced accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Illustrative, non-limiting embodiments will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings.

[0018] Figure 1 is a perspective view illustrating an inkjet apparatus according to an embodiment of the present disclosure.

[0019] Figure 2 is an example Figure 1 A perspective view of the operation of an inkjet device.

[0020] Figure 3 is an example Figure 1 Rear view of an inkjet device.

[0021] Figure 4 is an example included in Figure 1 A perspective view of a head group in an inkjet device.

[0022] Figure 5 is an example included in Figure 1 A rear view of a head group in an inkjet device.

[0023] Figure 6 is an example included in Figure 1 A perspective view of a carriage module in an inkjet device.

[0024] Figure 7 yes Figure 4 An enlarged perspective view of the "A1" area.

[0025] Figure 8 yes Figure 6 An enlarged perspective view of the "A2" area.

[0026] Fig. 9 is an example included in Figure 1 A perspective view of a first plate in an inkjet device.

[0027] Fig.10 , Fig.11 and Fig.12is a perspective view illustrating a method of aligning an inkjet apparatus according to an embodiment of the present disclosure.

[0028] Fig.13 It is an example based on Fig.10 , Fig.11 and Fig.12 A side view of a head module of a method of aligning an inkjet device.

[0029] Fig.14 is a side view of the head module before coupling the first coupling member.

[0030] Fig.15 is an example Fig.14 Rear view of the head module.

[0031] Fig.16 is a side view illustrating the head module after the first coupling member is coupled.

[0032] Fig.17 is an example Fig.16 Rear view of the head module.

[0033] Fig.18 is a side view illustrating the head module after the second coupling member is coupled.

[0034] Fig.19 is an example Fig.18 Rear view of the head module. DETAILED DESCRIPTION

[0035] Hereinafter, an inkjet apparatus and a method of aligning the inkjet apparatus according to an embodiment will be described in more detail with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals are used for the same components, and redundant descriptions of the same components may be omitted.

[0036] Figure 1 is a perspective view illustrating an inkjet apparatus according to an embodiment of the present disclosure. Figure 2 is an example Figure 1 A perspective view of the operation of an inkjet device. Figure 3 is an example Figure 1 Rear view of an inkjet device.

[0037] refer to Figure 1 , Figure 2 and Figure 3 The inkjet device 100 may include a head module 200, an ink supply module 300, a connecting part 400, a signal control part 500, an ink circulation part 600, a moving part 700, a first tension control module TB1, a second tension control module TB2, a first supporting part SUP1 and a second supporting part SUP2.

[0038] The head module 200 may include a head group 220, a bracket module 240, and a first plate 260. The head module 200 may eject ink. For example, the head module 200 may be used to print material on the surface of the substrate SUB to form R (red), G (green), and B (blue) organic light emitting layers.

[0039] The head group 220 and the bracket module 240 may be coupled to each other. For example, the head group 220 may be coupled to the corresponding bracket module 240 to form a combination of the head group 220 and the bracket module 240. In detail, the bracket module 240 may surround the head group 220, and a coupling portion of the head group 220 and a coupling portion of the bracket module 240 may be coupled.

[0040] In addition, the head group 220 can be separated from the carriage module 240. That is, the head group 220 coupled to the carriage module 240 can be separated from the carriage module 240, and the head group 220 can be replaced. The head group 220 can be a consumable component, so that the head group 220 can be replaced at a certain interval. Accordingly, the processing time and cost of the inkjet printing process can be reduced.

[0041] The head group 220 and the bracket module 240 may be coupled to the first plate 260. For example, a combination of a plurality of head groups 220 and a plurality of bracket modules 240 may be coupled to the first plate 260.

[0042] refer to Figure 1 , the head group 220 and the carriage module 240 can be supported by the first plate 260. The first plate 260 can support multiple head groups 220 and multiple carriage modules 240. The first plate 260 can be movable, for example, movable by the head moving module 740 described herein. The movement of the first plate 260 can also move the head group 220 and the carriage module 240.

[0043] refer to Figure 1 and Figure 3 , the combination of the head group 220 and the bracket module 240 may penetrate the first plate 260 and may be coupled to the first plate 260. For example, a portion of the head group 220 and the bracket module 240 may protrude on an upper portion of the first plate 260, and another portion of the head group 220 and the bracket module 240 may protrude on a lower portion of the first plate 260.

[0044] refer to Figure 3 , the portion protruding from the lower portion of the first plate 260 may include the third contact plate 246 in the carriage module 240, the second contact plate 226 of the head group 220, and the plurality of nozzles 223 disposed under the inkjet head 222. In addition, the second contact plate 226, the third contact plate 246, and the first plate 260 may be coupled to each other by the first coupling member 282 and the second coupling member 284.

[0045] A plurality of (e.g., more than two) combinations of the head group 220 and the bracket module 240 may be provided on the first plate 260. For example, the combination of the head group 220 and the bracket module 240 may be arranged in a first direction DR1 parallel to the upper surface of the first plate 260. In addition, the combination of the head group 220 and the bracket module 240 may be arranged in a zigzag arrangement and arranged in a second direction DR2 intersecting the first direction DR1 on the first plate 260. For example, the first direction DR1 and the second direction DR2 may form a plane substantially parallel to the upper surface of the first plate 260, and the plane may be perpendicular to the third direction DR3. The second direction DR2 may be perpendicular to the first direction DR1.

[0046] In addition, the nozzle surface (e.g., the nozzle surface 223') may be disposed on the bottom surface of the combination of the head group 220 and the bracket module 240. Accordingly, the nozzle surface 223' may be arranged identically in the first direction DR1 and the second direction DR2 according to the arrangement of the combination of the head group 220 and the bracket module 240.

[0047] In one embodiment, the plurality of nozzles 223 may include a surface 223' of the nozzle exposed at a lower portion of the third contact plate 246, and the surface 223' of the nozzle may be arranged in the first direction DR1 and the second direction DR2. In detail, the surface 223' of the nozzle may be arranged in a zigzag arrangement in the first direction DR1 and the second direction DR2. The plurality of nozzles 223 may include a surface 223' of the nozzle protruding from the lower portion of the third contact plate 246.

[0048] In one embodiment, the thickness of the surface 223' of the nozzle in the third direction DR3 perpendicular to the plane defined by the first direction DR1 and the second direction DR2 may be substantially equal to each other. In detail, the shortest distance (e.g., straight line distance) between the surface 223' of the nozzle protruding from the lower portion of the first plate 260 and the bottom surface of the first plate 260 may be substantially equal to each other. Accordingly, the flatness of the bottom surface of the head module 200 may be improved, and the printing quality of the inkjet device 100 may be improved.

[0049] References in this article Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 The configuration of the head group 220 , the bracket module 240 , and the first plate 260 , and a combination thereof are described in more detail.

[0050] The ink supply module 300 may include a flow control valve 320 , an ink supply channel 340 , and a second plate 360 ​​.

[0051] The flow control valve 320 may adjust the driving pressure and flow rate of the fluid (e.g., ink) delivered from the ink supply channel 340. The flow control valve 320 may continuously adjust the driving pressure and flow rate of the fluid (e.g., ink) delivered from the ink supply channel 340. In addition, the ink may be supplied to the head group 220 by controlling the direction of the ink.

[0052] The ink supply passage 340 may be a passage for transferring ink from the ink circulation portion 600 to the head group 220. In addition, the ink supply passage 340 may be a passage for transferring ink from the head group 220 to the ink circulation portion 600. That is, the ink supply passage 340 may be a circulation passage for ink flowing between the ink circulation portion 600 and the head group 220.

[0053] The flow control valve 320 and the ink supply channel 340 may be disposed on the second plate 360. In addition, the second plate 360 ​​may be arranged substantially parallel to and spaced apart from the upper surface of the first plate 260. Accordingly, the head module 200 and the connection portion 400 may be disposed between the first plate 260 and the second plate 360.

[0054] The connection part 400 may include a plurality of lines configured to connect the head group 220, the ink supply module 300, and the signal control part 500. For example, the connection part 400 may include a first connection part and a second connection part. The first connection part may be a fluid connection part, and the second connection part may be an electrical connection part.

[0055] The first connection portion may connect the head group 220 and the ink supply module 300. The ink delivered from the ink circulation portion 600 may be delivered to the head group 220 through the ink supply passage 340 and the first connection portion. In addition, the process of delivering the ink from the head group 220 to the ink circulation portion 600 may include delivering the ink through the ink supply passage 340 and the first connection portion.

[0056] The second connection portion may connect the head group 220 and the signal control portion 500. An electrical signal for causing the inkjet head 222 to eject ink may be transmitted from the signal control portion 500 through the second connection portion.

[0057] The signal control section 500 may receive signals including Figure 2 The signal including the movement information of the substrate SUB shown in FIG. 1 and the electric signal is generated based on the received signal including the movement information and the image to be generated. The electric signal can be transmitted to the head group 220 through the second connection part.

[0058] The ink circulation portion 600 may include an ink circulation module 620 and an ink circulation channel 640 .

[0059] The ink circulation module 620 may include an ink storage tank storing ink, a valve controlling supply and circulation of ink, and a pressure pump that may control the pressure of ink.

[0060] The ink circulation passage 640 may be connected to the ink supply passage 340. Ink may be circulated and supplied between the ink circulation portion 600 and the ink supply module 300 through the ink supply passage 340.

[0061] like Figure 1 and Figure 2 As shown in FIG. 7 , the moving part 700 may include a third plate 720 , a head moving module 740 , a substrate moving module 760 , a first supporting part SUP1 , and a second supporting part SUP2 .

[0062] The third plate 720 may be coupled to the first plate 260 and the second plate 360. For example, the first plate 260 and the second plate 360 ​​may be substantially parallel to each other, and the third plate 720 may be vertically coupled to each of the first plate 260 and the second plate 360 ​​on one side of the third plate 720. The second plate 360 ​​may be disposed above the first plate 260.

[0063] The head moving module 740 may be coupled to the third plate 720. In addition, the head moving module 740 may be coupled to the first support portion SUP1 to move the third plate 720 coupled to the head moving module 740.

[0064] For example, the head moving module 740 may move the third plate 720 in a direction parallel to the second direction DR2 and in a direction parallel to the third direction DR3. In detail, when the head moving module 740 moves the third plate 720, the head group 220 and the carriage module 240 may move in the second direction DR2 and the third direction DR3. Accordingly, the inkjet apparatus 100 may eject ink while moving the head module 200 in the second direction DR2 and the third direction DR3 on the substrate SUB. In addition, the position information of the substrate SUB may be measured by moving the head module 200 in the third direction DR3. For example, the position information of the substrate SUB relative to the head module 200 may be measured.

[0065] The substrate moving module 760 may move the substrate SUB in a direction parallel to the first direction DR1. Accordingly, an area where ink is ejected from the head module 200 on the substrate SUB may be adjusted to be substantially parallel to the first direction DR1.

[0066] The substrate SUB may be an object that receives the ejected ink. For example, the substrate SUB may be glass. However, the substrate SUB is not limited to glass, and the substrate SUB may include other materials.

[0067] In one embodiment, the inkjet apparatus 100 may include a first tension control module TB1 connected to the first board 260 and the second board 360 and a second tension control module TB2 connected to the first board 260 and the third board 720 .

[0068] The first tension control module TB1 may control the force applied between the first plate 260 and the second plate 360 ​​according to the combination of the head group 220 and the carriage module 240. Accordingly, the flatness of the first plate 260 and the second plate 360 ​​may be maintained.

[0069] The second tension control module TB2 may adjust the force applied between the first plate 260 and the third plate 720. For example, the second tension control module TB2 may control the tension so that the first plate 260 and the third plate 720 may be vertically connected to each other.

[0070] Figure 4 is an example included in Figure 1 A perspective view of a head group in an inkjet device. Figure 5 is an example included in Figure 1 A rear view of a head group in an inkjet device.

[0071] In detail, Figure 4 The head group 220 in the embodiment may be in a state before being coupled to the bracket module 240. In addition, Figure 5 A bottom surface of the second contact plate 226 of the head group 220 before the head group 220 is coupled to the cradle module 240 may be illustrated.

[0072] refer to Figure 4 and Figure 5 The head group 220 may include an inkjet head 222, a first contact plate 224, a plurality of nozzles 223, a second contact plate 226, an ink control module 228, a first supporting member 230, a second supporting member 232, a first supporting plate P1, a second supporting plate P2, an ink tube IT, a first ink tube connecting part ITP1, a first ink control module connecting part HC1, a second ink control module connecting part HC2 and a fixing pin FP.

[0073] The inkjet head 222 may eject ink supplied from the ink circulation portion 600 onto the substrate SUB. The head group 220 may include at least one (eg, two) inkjet head 222. However, the number of inkjet heads 222 included in the head group 220 is not limited thereto.

[0074] In one embodiment, the number of inkjet heads 222 included in the head group 220 may be in the range of 1 to 5. Preferably, the number of inkjet heads 222 included in the head group 220 may be in the range of 3 to 5.

[0075] Despite Figures 1 to 19 Three inkjet heads 222 may be illustrated in the head group 220 in FIG. 1 , but this may be for schematic illustration of the head group 220 , and the number of the inkjet heads 222 may not be limited thereto.

[0076] The plurality of nozzles 223 may be disposed at a lower portion of the head group 220. The plurality of nozzles 223 may be disposed under the inkjet head 222 and may be exposed from a lower portion of the second contact plate 226. For example, the plurality of nozzles 223 may be disposed under the inkjet head 222 and protrude from a lower portion of the second contact plate 226.

[0077] The first contact plate 224 may include a first ink tube connection portion ITP1. For example, the first ink tube connection portion ITP1 may be disposed on an upper surface of the first contact plate 224.

[0078] The ink tube IT may be coupled adjacent to the inkjet head 222. The ink tube IT may directly supply ink to the inkjet head 222. The ink tube IT may be connected to a first ink tube connection portion ITP1 of the first contact plate 224.

[0079] In addition, the first contact plate 224 may be coupled to the upper portion of the bracket module 240. For example, the first contact plate 224 may be coupled to the second bracket portion 244 of the bracket module 240 via the first protrusion 236. Figure 7 and Figure 8 Explain in more detail.

[0080] The second contact plate 226 can be coupled to the inkjet head 222. For example, the inkjet head 222 can be coupled through the first contact plate 224. Figure 5 As shown in FIG. 2 , the surfaces 223′ of the nozzles of the plurality of nozzles 223 may be exposed to the bottom surface of the second contact plate 226. The surfaces 223′ of the nozzles of the plurality of nozzles 223 may protrude from the bottom surface of the second contact plate 226. That is, the surface provided at the lower portion of the head module 200 may be the lower surface of the plurality of nozzles 223 including the surfaces 223′ of the nozzles.

[0081] The second contact plate 226 may be coupled to the lower portion of the bracket module 240. For example, the second contact plate 226 may be coupled to the third contact plate 246 of the bracket module 240 through the second recess 234 and the fixing pin FP. Figure 6 Explain in more detail.

[0082] In addition, the second contact plate 226 may be coupled to the first plate 260. For example, the second contact plate 226 may be coupled to the first plate 260 through a plurality of second holes H2 of the second contact plate 226.

[0083] The ink control module 228 may control the ejection of ink from the surface 223' of the plurality of nozzles of the inkjet head 222 coupled to the second contact plate 226. For example, the ink control module 228 may transmit an electrical signal for controlling the ejection of ink of the inkjet head 222 from the signal control part 500 to the inkjet head 222 and the plurality of nozzles 223.

[0084] In one embodiment, the ink control module 228 may be an interface board.

[0085] The first ink control module connection portion HC1 may be disposed below the ink control module 228. For example, the ink control module 228 may be detachably coupled to the inkjet head 222 disposed below the ink control module 228 through the first ink control module connection portion HC1. In detail, the ink control module 228 and the inkjet head 222 may be coupled to each other through the first ink control module connection portion HC1. Similarly, a plurality of ink control modules 228 and a plurality of inkjet heads 222 may be coupled to each other through the first ink control module connection portion HC1, respectively. That is, the number of inkjet heads 222 included in the head group 220 and the number of ink control modules 228 may be the same.

[0086] In addition, the second ink control module connection portion HC2 may be provided on the ink control module 228. For example, the ink control module 228 may be detachably connected to the ink control module 228 through the second ink control module connection portion HC2. Figure 1 , Figure 2 and Figure 3 That is, the electrical signal may be directly transmitted to the head group 220 through the second ink control module connection part HC2. When the head group 220 is replaced, the ink control module 228 may be detached from the second connection part of the connection part 400.

[0087] The first support plate P1 and the second support plate P2 may be disposed between the first contact plate 224 and the second contact plate 226. The first support plate P1 may be disposed on the second support plate P2, and the first support plate P1 and the second support plate P2 may be arranged to be spaced apart.

[0088] The first contact plate 224 and the first support plate P1 may be spaced apart and arranged substantially in parallel, and the first contact plate 224 and the first support plate P1 may be coupled by the first support member 230. In addition, the second support member 232 may connect the first support plate P1, the second support plate P2, and the second contact plate 226 to each other. For example, the second support member 232 may be a cylindrical rod penetrating the first support plate P1, the second support plate P2, and the second contact plate 226. However, the shape of the second support member 232 is not limited thereto.

[0089] In one embodiment, the first support member 230 may include an elastic member. For example, the elastic member may include a spring. Accordingly, when the head group 220 and the bracket module 240 are coupled, the load and external force of the bracket module 240 transmitted to the second support plate P2 may be reduced. However, the type of the elastic member may not necessarily be limited to a spring.

[0090] Figure 6 is an example included in Figure 1 A perspective view of a carriage module in an inkjet device. Figure 7 yes Figure 4 An enlarged perspective view of the "A1" area. Figure 8 yes Figure 6 An enlarged perspective view of the "A2" area.

[0091] refer to Figure 6 The carriage module 240 may include a first carriage portion 242, a second carriage portion 244, a third contact plate 246, a first shaft 248, a second shaft 250, a second ink tube connection portion ITP2, and a cable connection portion CC.

[0092] The first bracket portion 242 may be connected to the ink supply module 300. The first bracket portion 242 may include a second ink tube connection portion ITP2 and a cable connection portion CC. The second ink tube connection portion ITP2 may be coupled to the first ink tube connection portion ITP1 included in the head group 220. Accordingly, the ink tube IT may be coupled to the connection portion 400 through the first ink tube connection portion ITP1 and the second ink tube connection portion ITP2. That is, the ink supplied from the ink supply module 300 may be supplied to the ink tube IT through the first connection portion of the connection portion 400, the first ink tube connection portion ITP1, and the second ink tube connection portion ITP2.

[0093] The cable connection part CC can be detachably connected to Figure 4 40 . For example, when the head group 220 and the bracket module 240 are connected, the cable connection part CC of the first bracket part 242 can be connected to the upper part of the second ink control module connection part HC2. Accordingly, when the head group 220 and the bracket module 240 are connected, the electrical signal can be sent from the signal control part 500 to the ink control module 228. For example, the electrical signal can be sent from the signal control part 500 to the ink control module 228 through the second connection part of the connection part 400, the cable connection part CC, and the second ink control module connection part HC2. When the head group 220 is replaced, the cable connection part CC can be detached from the second ink control module connection part HC2.

[0094] The second bracket portion 244 may be disposed under the first bracket portion 242. In addition, when the bracket module 240 and the first plate 260 are coupled, the first bracket portion 242 may be disposed above the first plate 260, and the second bracket portion 244 may be disposed on an upper portion of the first plate 260.

[0095] The second bracket portion 244 may be detachably coupled to the first contact plate 224 of the head group 220. The contact portion of the second bracket portion 244 and the contact portion of the first contact plate 224 may have a coupling portion that may be coupled to each other. When the head group 220 is replaced, the second bracket portion 244 may be detachable from the first contact plate 224 of the head group 220.

[0096] In one embodiment, reference Figure 7 and Figure 8 , the first contact plate 224 may include a first protrusion 236 protruding from a side surface of the first contact plate 224 in the first direction DR1, and the second bracket portion 244 may include a first recessed portion 256 recessed in an upper surface of the second bracket portion 244. Accordingly, the first protrusion 236 may cooperate with the first recessed portion 256. For example, the first protrusion 236 and the first recessed portion 256 may cooperate to couple the first contact plate 224 and the second bracket portion 244.

[0097] In other words, since the first protrusion 236 and the first recess 256 can be matched, the first contact plate 224 of the head group 220 and the second bracket part 244 of the bracket module 240 can be coupled. In an embodiment, the second bracket part 244 of the bracket module 240 can be detachably coupled to the first contact plate 224.

[0098] However, Figure 7 The protruding direction of the first protrusion 236 and Figure 8 The recessed direction of the first recessed portion 256 in the embodiment may not be limited to the first direction DR1. For example, the protruding direction of the first protrusion 236 and the recessed direction of the first recessed portion 256 may be opposite to the first direction DR1.

[0099] In detail, although Figure 4 and Figure 7 Although not shown in FIG. 1 , the first protrusion 236 may also be provided on the edge of the first contact plate 224 in a direction opposite to the first direction DR1. Figure 6 and Figure 8 Although not shown in the figure, the first recessed portion 256 may also be provided on the edge of the second bracket portion 244 in the direction opposite to the first direction DR1.

[0100] Meanwhile, the protruding shape of the first protrusion 236 and the concave shape of the first concave portion 256 may not be limited to Figure 7 and Figure 8 The hexahedron shown in FIG. 1 and may have various shapes.

[0101] The third contact plate 246 may be disposed under the second bracket portion 244. In addition, when the head group 220 and the bracket module 240 are coupled, the third contact plate 246 may be disposed under the second contact plate 226.

[0102] In one embodiment, the third contact plate 246 may be detachably coupled to the inkjet head 222. When the third contact plate 246 and the second contact plate 226 are coupled, the head coupling portion 252 included in the third contact plate 246 and the inkjet head 222 may be coupled. For example, the head coupling portion 252 may be an opening having a shape perpendicular to a plane of the third direction DR3. In detail, the inkjet head 222 may pass through the opening and may be coupled to the third contact plate 246, and the surface 223' of the nozzle may protrude from the lower portion of the third contact plate 246.

[0103] The third contact plate 246 may be coupled to the second contact plate 226. A contact portion of the third contact plate 246 and a contact portion of the second contact plate 226 may have a coupling portion that may be coupled to each other.

[0104] In one embodiment, if Figure 4 , Figure 5 and Figure 6 As shown in FIG. 1 , the second contact plate 226 may include a second recess 234 recessed in a direction opposite to the first direction DR1, and the third contact plate 246 may include a second protrusion 254 protruding in a direction opposite to the first direction DR1. Accordingly, the second protrusion 254 may be coupled to the second recess 234.

[0105] In other words, when the second protrusion 254 and the second recess 234 are coupled, the second contact plate 226 of the head group 220 and the third contact plate 246 of the bracket module 240 may be coupled.

[0106] However, Figure 4 and Figure 5 The concave direction of the second concave portion 234 in Figure 6 The protruding direction of the second protrusion 254 in the embodiment may not be limited to the direction opposite to the first direction DR1. For example, the concave direction of the second recessed portion 234 and the protruding direction of the second protrusion 254 may be in the first direction DR1.

[0107] In detail, Figure 5 As shown in FIG. 1 , the second contact plate 226 includes two second recessed portions 234 recessed in the first direction DR1 and in a direction opposite to the first direction DR1. Figure 6As shown in FIG. 2 , the third contact plate 246 may have two second protrusions 254 protruding in the first direction DR1 and in a direction opposite to the first direction DR1 .

[0108] Meanwhile, the concave shape of the second concave portion 234 and the protruding shape of the second protrusion 254 may not be limited to Figure 4 and Figure 6 The hexahedral shape shown in FIG. 1 and may have various shapes.

[0109] As described above, the first protrusion 236 may be matched with the first recess 256, and the second protrusion 254 may be coupled to the second recess 234. Accordingly, when the head group 220 is coupled to the carriage module 240, the head group 220 and the carriage module 240 may be easily coupled to corresponding positions. Accordingly, the processing time and cost of the inkjet printing process may be reduced.

[0110] In one embodiment, the first shaft 248 may connect the first bracket portion 242 and the second bracket portion 244. The first shaft 248 may be fixedly coupled to the first bracket portion 242. In addition, the first shaft 248 may be loosely coupled to the second bracket portion 244. Accordingly, the second bracket portion 244 may move along the first shaft 248 in the third direction DR3 or in a direction opposite to the third direction DR3.

[0111] The second shaft 250 may be disposed between the second bracket portion 244 and the third contact plate 246. Figure 6 As shown in FIG. 2 , the second shaft 250 may be a rod coupled to four corner portions of each of the second bracket portion 244 and the third contact plate 246 .

[0112] The second shaft 250 may be fixedly coupled to the second bracket portion 244 and the third contact plate 246. In detail, the second bracket portion 244 and the third contact plate 246 may be arranged to be spaced apart. Accordingly, the head group 220 may be coupled between the second bracket portion 244 and the third contact plate 246.

[0113] In addition, when the head group 220 and the bracket module 240 are coupled, the first shaft 248 may be disposed outside the second shaft 250. Accordingly, when the head group 220 is coupled to the bracket module 240, the head group 220 may be disposed inside the second shaft 250 and may move together with the second bracket portion 244 in the third direction DR3.

[0114] Fig. 9 is an example included in Figure 1 A perspective view of a first plate in an inkjet device.

[0115] refer to Fig. 9, the first plate 260 may include a first shaft coupling portion 262 , a second shaft coupling portion 264 , a head coupling portion 266 , a plurality of third holes H3 , and a plurality of fourth holes H4 .

[0116] The first shaft coupling portion 262 may couple the first shaft 248 and the first plate 260. For example, the first shaft coupling portion 262 may be a hole capable of coupling the first shaft 248 and the first plate 260 in the third direction DR3. In detail, the first shaft 248 may be coupled to the first plate 260 through the hole of the first shaft coupling portion 262 without protruding from the lower surface of the first plate 260 (see Fig.14 ). For example, the hole of the first shaft coupling portion 262 may not completely pass through the first plate 260. In another example, the bottom surface of the first shaft 248 may be coplanar with the bottom surface of the first plate 260.

[0117] The second shaft coupling portion 264 may couple the second shaft 250 and the first plate 260. For example, the second shaft coupling portion 264 may be a hole that may couple the second shaft 250 and the first plate 260 in the third direction DR3. In detail, the second shaft 250 may protrude from the lower surface of the first plate 260 and be coupled to the third contact plate 246 through the hole. That is, the second shaft 250 may penetrate the first plate 260 through the second shaft coupling portion 264 and couple the second bracket portion 244 and the third contact plate 246.

[0118] When the first plate 260 and the third contact plate 246 are coupled, the positions of the plurality of third holes H3 may overlap with the positions of the plurality of first holes H1 of the third contact plate 246 in the third direction DR3. In one embodiment, the plurality of first holes H1 and the plurality of third holes H3 may be formed by Figure 3 The first coupling member 282 shown in FIG. 2 is connected, and thus the first plate 260 and the third contact plate 246 may be coupled. For example, the first coupling member 282 may pass through the plurality of first holes H1 and the plurality of third holes H3.

[0119] Meanwhile, the plurality of first holes H1 and the plurality of third holes H3 may not overlap with the second contact plate 226 in the third direction DR3 . Accordingly, the first coupling member 282 may couple the first plate 260 and the third contact plate 246 .

[0120] When a bracket module 240 is coupled to the first plate 260, Figure 6 The first holes H1 and Fig. 9 The plurality of third holes H3 shown in FIG. 1 may be aligned. As illustrated, four first holes H1 and four third holes H3 may be provided. However, the number of the first holes H1 and the third holes H3 may not be limited thereto.

[0121] When the first plate 260 and the second contact plate 226 are coupled, the positions of the plurality of fourth holes H4 may overlap with the positions of the plurality of second holes H2 of the second contact plate 226 in the third direction DR3. When the first plate 260 and the second contact plate 226 are coupled, the positions of the plurality of fourth holes H4 may be aligned with the positions of the plurality of second holes H2 of the second contact plate 226 in the third direction DR3. In one embodiment, the plurality of second holes H2 and the plurality of fourth holes H4 may be aligned with the plurality of second holes H2 of the second contact plate 226 in the third direction DR3. Figure 3 The second coupling member 284 shown in FIG. 2 is connected, and thus the first plate 260 and the second contact plate 226 can be coupled. For example, the second coupling member 284 can pass through the plurality of second holes H2 and the plurality of fourth holes H4.

[0122] When one head group 220 and the first plate 260 are connected, Figure 4 The plurality of second holes H2 and Fig. 9 The plurality of fourth holes H4 shown in FIG. 1 may be aligned. As illustrated, four second holes H2 and four fourth holes H4 may be provided. However, the number of the second holes H2 and the fourth holes H4 may not be limited thereto.

[0123] In the area where the first plate 260 and the bracket module 240 overlap, the number of the plurality of first holes H1 and the number of the plurality of third holes H3 described herein may be the same. In addition, in the area where the first plate 260 and a head group 220 overlap, the plurality of second holes H2 and the plurality of fourth holes H4 may be equal in number.

[0124] The lower surface of the inkjet head 222 may be coupled to a head coupling portion 266 included in the first plate 260. For example, the head coupling portion 266 may be an opening having a shape of a plane perpendicular to the third direction DR3. In detail, when the inkjet head 222 on the second contact plate 226 is coupled to the head coupling portion 252 of the third contact plate 246, the inkjet head 222 may be connected to the lower portion of the first plate 260 through the opening. A plurality of nozzles 223 of the inkjet head 222 may protrude from the lower portion of the first plate 260 through the opening.

[0125] The plane area of ​​the head coupling portion 266 of the first plate 260 may be smaller than the plane area perpendicular to the third direction DR3 of the third contact plate 246. Accordingly, when the second bracket portion 244 and the third contact plate 246 move in the third direction DR3 by the first shaft 248, since the third contact plate 246 may not pass through the head coupling portion 266, the third contact plate 246 may be disposed under the first plate 260. For example, the third contact plate 246 may be completely disposed under the first plate 260.

[0126] Fig.10 , Fig.11 and Fig.12is a perspective view illustrating a method of aligning an inkjet apparatus according to an embodiment of the present disclosure.

[0127] refer to Fig.10 , before the head group 220 is coupled, the bracket module 240 and the first plate 260 may be coupled, and the second bracket portion 244 may contact the first plate 260 . Figure 4 The head group 220 shown in FIG. 2 may be disposed in a space between the second bracket portion 244 and the third contact plate 246 of the bracket module 240 .

[0128] refer to Fig.11 , the first contact plate 224 and the second bracket portion 244 can be connected, and the second contact plate 226 and the third contact plate 246 can be connected. For example, as described above Figure 4 , Figure 6 , Figure 7 and Figure 8 As described in the drawings, the first protrusion 236 and the first recess 256 may cooperate, and the second protrusion 254 and the second recess 234 may be coupled. The first protrusion 236 and the first recess 256 and the second protrusion 254 and the second recess 234 may help align the head group 220 and the bracket module 240. For example, the cooperation of the first protrusion 236 and the first recess 256 and the coupling of the second protrusion 254 and the second recess 234 may help align the second contact plate 226, the third contact plate 246, and the first plate 260 to have a specific positional relationship.

[0129] like Fig.11 As shown in , after the head group 220 and the lower part of the bracket module 240 are coupled, the head group 220 can move toward the first bracket part 242 in the third direction DR3. For example, when the second bracket part 244 moves through the first shaft 248, the head group 220 coupled to the second bracket part 244 and the third contact plate 246 can move in the third direction DR3. That is, the head group 220 coupled to the bracket module 240 cannot move in the first direction DR1 or the second direction DR2. The head group 220 coupled to the bracket module 240 can be fixed in the first direction DR1 and / or the second direction DR2. The head group 220 coupled to the bracket module 240 and fixed in the first direction DR1 and / or the second direction DR2 can move in the third direction DR3.

[0130] refer to Fig.12 , a portion of the head group 220 may be disposed on an upper portion of the first plate 260. The second contact plate 226 of the head group 220 may be disposed under the first plate 260. For example, the second contact plate 226 may be coupled to the first plate 260 by contacting a lower surface of the first plate 260. The second contact plate 226 may be disposed on the third contact plate 246.

[0131] When the head group 220 moves in the third direction DR3 , the first bracket portion 242 and the second bracket portion 244 of the bracket module 240 may be disposed to directly contact each other. Accordingly, the second ink control module connection portion HC2 of the head group 220 may be coupled to the cable connection portion CC of the first bracket portion 242 .

[0132] In addition, the first ink tube connecting portion (eg, Figure 4 and a second ink tube connection portion (eg, Figure 6 The second ink tube connection portion ITP2) can be connected.

[0133] As described above, the head group 220 fixed in the first direction DR1 and / or the second direction DR2 can be moved in the third direction DR3, so that the second ink control module connection part HC2 and the cable connection part CC can be accurately connected to each other. In addition, the first ink tube connection part and the second ink tube connection part can be accurately connected to each other. Accordingly, defects in the inkjet printing process can be reduced or prevented, and ink leakage can be prevented.

[0134] Meanwhile, after the head group 220 is moved, the third contact plate 246 may be coupled to the first plate 260. After the third contact plate 246 and the first plate 260 are coupled, the second contact plate 226 and the first plate 260 may be coupled. Fig.14 , Fig.15 , Fig.16 , Fig.17 , Fig.18 and Fig.19 Describe in more detail.

[0135] according to Fig.10 , Fig.11 and Fig.12 The method for aligning the inkjet device 100 shown in FIG. Figure 1 The head module 200 shown in FIG.

[0136] Meanwhile, the method of aligning the inkjet apparatus 100 may include a process of combining the head group 220 with the carriage module 240 (eg, Fig.10 , Fig.11 and Fig.12 alignment method) and a process of separating the head group 220 from the bracket module 240.

[0137] Despite Fig.10 , Fig.11 and Fig.12Although not shown, the process of separating the head group 220 may include separating the second bracket part 244 from the first bracket part 242 and then moving the second bracket part 244 toward the first plate 260 in the direction opposite to the third direction DR3.

[0138] Fig.10 , Fig.11 and Fig.12 It may be illustrated that a process of coupling a new head group 220 to the cradle module 240 after the head group 220 is separated from the cradle module 240 .

[0139] Fig.13 It is an example based on Fig.10 , Fig.11 and Fig.12 A side view of a head module of a method of aligning an inkjet device. In detail, Fig.13 The basis for observing from the second direction DR2 Fig.10 , Fig.11 and Fig.12 A method of aligning the inkjet apparatus 100 is a side view of aligning the head module 200.

[0140] refer to Fig.13 , as above Figure 1 , Figure 2 and Figure 3 As described in , the head module 200 may include a second contact plate 226, a third contact plate 246, and a first plate 260. For example, within the head module 200, the second contact plate 226, the third contact plate 246, and the first plate 260 may be coupled to each other.

[0141] at the same time, Fig.13 An area “B” in FIG. 2 is an enlarged area showing the arrangement of the second contact plate 226 , the third contact plate 246 , and the first plate 260 . Fig.14 , Fig.16 and Fig.18 Shown in sequence with Fig.13 That is, according to the step of combining the first coupling member 282 and the second coupling member 284 included in the method of aligning the inkjet apparatus 100, the positional relationship of the second contact plate 226, the third contact plate 246 and the first plate 260 is shown in an enlarged manner.

[0142] Fig.14 is a side view of the head module before coupling the first coupling member. Fig.15 is an example Fig.14 Rear view of the head module.

[0143] refer to Fig.14The second contact plate 226 , the third contact plate 246 , and the first plate 260 may be arranged to be spaced apart from each other. The first plate 260 and the third contact plate 246 may be coupled by the second shaft 250 .

[0144] However, this may be before the first coupling member 282 may be coupled to the plurality of first holes H1 of the third contact plate 246 and the plurality of third holes H3 of the first plate 260. Accordingly, depending on the load or external force of the bracket module 240, the third contact plate 246 may not be parallel to the first plate 260.

[0145] refer to Fig.14 and Fig.15 , Fig.15 Can be Figure 5 2 is a rear view of the head group 220, in which the third contact plate 246 and the bottom surface of the first plate 260 are added.

[0146] The first coupling member 282 and the second coupling member 284 may not be coupled to Fig.15 That is, the plurality of first holes H1 of the third contact plate 246 disposed under the first plate 260 may overlap with the plurality of third holes H3 of the first plate 260 in the third direction DR3. In addition, the plurality of second holes H2 of the second contact plate 226 disposed under the first plate 260 may overlap with the plurality of fourth holes H4 of the first plate 260 in the third direction DR3.

[0147] Fig.16 is a side view illustrating the head module after the first coupling member is coupled. Fig.17 is an example Fig.16 Rear view of the head module.

[0148] refer to Fig.16 , the first coupling member 282 may be disposed between the third contact plate 246 and the first plate 260. For example, the first coupling member 282 may be a fastening member connected by a bolt and a nut. The present disclosure is not limited thereto, and the first coupling member 282 may be provided in various ways.

[0149] In one embodiment, the first coupling member 282 may connect the plurality of first holes H1 of the third contact plate 246 and the plurality of third holes H3 of the first plate 260 in the third direction DR3 .

[0150] In one embodiment, in the step of coupling the first coupling member 282, the second contact plate 226 and the first plate 260 may be spaced apart substantially in parallel. In detail, the first coupling member 282 may be connected between the third contact plate 246 and the first plate 260, and a first gap G1 may appear between the second contact plate 226 and the first plate 260. Accordingly, in the process of coupling the third contact plate 246 and the first plate 260, the flatness of the second contact plate 226 may be maintained.

[0151] refer to Fig.16 and Fig.17 , and especially Fig.17 , the configuration of the first coupling member 282 is shown in Fig.15 The plurality of first holes H1 and the plurality of third holes H3 in the rear view of the head module 200 .

[0152] The second coupling member 284 may not be coupled to Fig.17 That is, the plurality of second holes H2 of the second contact plate 226 disposed under the first plate 260 may overlap with the plurality of fourth holes H4 of the first plate 260 in the third direction DR3.

[0153] Fig.18 is a side view illustrating the head module after the second coupling member is coupled. Fig.19 is an example Fig.18 Rear view of the head module.

[0154] refer to Fig.18 , the second coupling member 284 may be disposed between the second contact plate 226 and the first plate 260. For example, the second coupling member 284 may be a fastening member connected by a bolt and a nut. The present disclosure is not limited thereto, and the second coupling member 284 may be provided in various ways.

[0155] In one embodiment, the second coupling member 284 may connect the plurality of second holes H2 of the second contact plate 226 and the plurality of fourth holes H4 of the first plate 260 in the third direction DR3.

[0156] In one embodiment, in the step of coupling the second coupling member 284, the second contact plate 226 and the third contact plate 246 may be spaced apart in the third direction DR3 and may be disposed substantially parallel to each other. In detail, the second coupling member 284 may be connected between the second contact plate 226 and the first plate 260, and a second gap G2 may appear between the second contact plate 226 and the third contact plate 246. Accordingly, during the process of coupling the second contact plate 226 and the first plate 260, the flatness of the second contact plate 226 may be maintained.

[0157] refer to Fig.18 and Fig.19 , Fig.19 The view can be found in Fig.17 The second coupling member 284 is added to the configuration of the plurality of second holes H2 and the plurality of fourth holes H4 in the rear view of the head module 200 .

[0158] The second coupling member 284 may pass through an opening (eg, Figure 6 The head connecting portion 252 of the embodiment of the present invention can connect the second contact plate 226 and the first plate 260.

[0159] Accordingly, Figure 1 The head module 200 shown in FIG. Fig.14 , Fig.15 , Fig.16 , Fig.17 , Fig.18 and Fig.19 The method for aligning the inkjet device 100 shown in FIG.

[0160] A second gap G2 between the second contact plate 226 and the third contact plate 246 of the head module 200 may be maintained.

[0161] The inkjet apparatus according to an embodiment may be used for manufacturing a display device included in a computer, a notebook, a mobile phone, a smart phone, a smart tablet, a PMP, a PDA, an MP3 player, and the like.

[0162] Although the inkjet apparatus according to some embodiments has been described with reference to the accompanying drawings, modifications and changes may be made by those skilled in the art without departing from the technical spirit described in the appended claims.

Claims

1. An inkjet device, characterized in that: The inkjet device comprises: a first plate, wherein the first plate is movable; and a carriage module supported by the first plate and configured to receive a head group including an inkjet head, The bracket module comprises: a first bracket portion disposed above the first plate; a second bracket portion movable relative to the first bracket portion and disposed below the first bracket portion and above the first plate; and A third contact plate is movable relative to the first bracket portion and is disposed below the second bracket portion and the first plate.

2. The inkjet device according to claim 1, characterized in that The header group further comprises: a first contact plate; and a second contact plate, disposed below the first contact plate, The second bracket portion of the bracket module is detachably coupled to the first contact plate.

3. An inkjet device, characterized in that: The inkjet device comprises: a head group, comprising an inkjet head, a first contact plate, and a second contact plate disposed below the first contact plate; Ink supply module; First Board; and a bracket module disposed on the first plate and configured to receive the head group, The bracket module comprises: a first bracket portion connected to the ink supply module; a second bracket portion disposed below the first bracket portion and detachably coupled to the first contact plate; and A third contact plate is disposed under the second bracket portion and is detachably coupled to the inkjet head.

4. The inkjet device according to claim 3, characterized in that: The bracket module further comprises: a first shaft configured to connect the first bracket portion and the second bracket portion and configured to move the second bracket portion and the third contact plate toward the first bracket portion; and The second shaft is configured to connect the second bracket portion and the third contact plate.

5. The inkjet device according to claim 3, characterized in that: The first contact plate includes a first protrusion protruding from a side surface of the first contact plate in a first direction parallel to an upper surface of the first plate, and The second bracket portion includes a first recessed portion recessed in an upper surface of the second bracket portion.

6. The inkjet device according to claim 5, characterized in that The second contact plate includes a second recessed portion recessed in a direction opposite to the first direction, and The third contact plate includes a second protrusion protruding in the direction opposite to the first direction.

7. The inkjet device according to claim 6, characterized in that The first protrusion cooperates with the first recess, and Wherein the second protrusion is coupled to the second recess.

8. The inkjet device according to claim 3, characterized in that: The head group further includes a plurality of nozzles including a nozzle surface protruding from a lower portion of the third contact plate, and The nozzle surfaces are arranged in a first direction parallel to an upper surface of the first plate and in a second direction parallel to the upper surface of the first plate and intersecting the first direction.

9. The inkjet device according to claim 8, characterized in that Thicknesses of the nozzle surfaces in a third direction perpendicular to a plane defined by the first direction and the second direction are equal to each other.

10. The inkjet device according to claim 3, characterized in that: The third contact plate of the bracket module includes a plurality of first holes, wherein the second contact plate of the head group comprises a plurality of second holes, wherein the first plate comprises a plurality of third holes and a plurality of fourth holes, wherein the plurality of first holes and the plurality of third holes are connected to each other by a first coupling member, wherein the third contact plate and the first plate are coupled to each other by the first coupling member, wherein the plurality of second holes and the plurality of fourth holes are connected to each other by a second coupling member, wherein the second contact plate and the first plate are coupled to each other by the second coupling member, and The second contact plate and the third contact plate are spaced apart from each other in parallel.

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