WO2017166450A1 - 喷墨打印头、喷墨打印设备及显示器生产设备 - Google Patents

喷墨打印头、喷墨打印设备及显示器生产设备 Download PDF

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Publication number
WO2017166450A1
WO2017166450A1 PCT/CN2016/086414 CN2016086414W WO2017166450A1 WO 2017166450 A1 WO2017166450 A1 WO 2017166450A1 CN 2016086414 W CN2016086414 W CN 2016086414W WO 2017166450 A1 WO2017166450 A1 WO 2017166450A1
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WO
WIPO (PCT)
Prior art keywords
vacuum
ink
adsorption device
vacuum adsorption
printed
Prior art date
Application number
PCT/CN2016/086414
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English (en)
French (fr)
Inventor
肖昂
Original Assignee
京东方科技集团股份有限公司
鄂尔多斯市源盛光电有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 京东方科技集团股份有限公司, 鄂尔多斯市源盛光电有限责任公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/517,279 priority Critical patent/US10279609B2/en
Publication of WO2017166450A1 publication Critical patent/WO2017166450A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/17—Cleaning arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/1433—Structure of nozzle plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/1714—Conditioning of the outside of ink supply systems, e.g. inkjet collector cleaning, ink mist removal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/27—Suction devices

Definitions

  • the present application relates to the field of display technologies, and in particular, to an inkjet print head, an inkjet printing device, and a display production device.
  • inkjet printing technology is applied to the preparation process of flat panel displays.
  • inkjet printing technology can be applied to a flexible OLED thin film packaging process, which can be used to uniformly deposit an organic material on an OLED light emitting device in an inkjet manner.
  • inkjet printing The basic working principle of inkjet printing can be summarized as follows: firstly generate small ink droplets, and then use the nozzle to guide the fine ink droplets to the set position.
  • a typical ink jet print head is composed of a plurality of small micro nozzles, each of which typically has a drop amount of ⁇ 100 picoliters (pL).
  • pL picoliters
  • satellite malfunction This phenomenon is called satellite malfunction, and sporadic small droplets are called satellite droplets.
  • the inkjet printing process occurs in the middle of the printing area of the object to be printed (for example, the substrate)
  • the sputtered satellite droplets still drip in the printing area, but when the inkjet printing process occurs at the edge of the printing area of the object to be printed At this time, the sputtered satellite droplets drip onto the area outside the printing area of the object to be printed.
  • the satellite droplets on the area outside the printing area may have adverse effects on subsequent production processes, such as the formation of inorganic layer deposition faults in subsequent chemical vapor deposition processes, the formation of conforming bubbles in subsequent filming processes, etc., thereby affecting the final product quality.
  • the satellite drops dripping onto the area outside the printing area may have a bad effect on the subsequent production process, thereby affecting the final result.
  • Embodiments of the present application provide an inkjet printhead, an inkjet printing apparatus, and a display production apparatus for eliminating or reducing droplets on a region other than a printing area in an inkjet printing process, thereby improving the quality of the product.
  • An inkjet printhead provided by an embodiment of the present application includes at least one nozzle and a droplet removing device disposed at least one edge region around a region where the at least one nozzle is located, the droplet removing device for eliminating an object to be printed A droplet at a position corresponding to an edge region where the droplet removing device is located.
  • An inkjet printhead provided by an embodiment of the present application, by using a droplet removing device at least one edge region around a region where at least one nozzle is located, using the droplet removing device to eliminate an edge region of the object to be printed and the droplet removing device
  • the droplets at the corresponding positions can eliminate droplets on the areas outside the printing area in the inkjet printing process, thereby improving the quality of the product.
  • the inkjet printhead can include a plurality of nozzles, and the regions in which the plurality of nozzles are located can be rectangular regions.
  • the four edge regions around the region where the plurality of nozzles are located may each be provided with one droplet removal device.
  • the droplet removal device can include a vacuum adsorption device or an electrostatic adsorption device.
  • the vacuum adsorption device may be any suitable mechanical component capable of aspirating droplets, including but not limited to vacuum adsorption pads or vacuum adsorption plates having micropores on the surface.
  • the electrostatic adsorption device may be a component capable of forming an electrostatic field with the object to be printed, including but not limited to metal pads, metal bars, metal strips, and the like.
  • Another embodiment of the present application provides an inkjet printing apparatus that can include an inkjet printhead provided by any of the above-described embodiments of the present application.
  • the above-described inkjet printhead uses the droplet removal device by providing a droplet removing device at at least one edge region around the region where the at least one nozzle is located.
  • the device eliminates droplets on the object to be printed corresponding to the edge region where the droplet removing device is located, thereby eliminating droplets on the regions other than the printing region in the inkjet printing process, thereby improving the quality of the product.
  • the droplet removal device may be a vacuum adsorption device
  • the inkjet printing device may further include at least one vacuum pump, the vacuum pump being in one-to-one correspondence with the at least one vacuum adsorption device.
  • a vacuum pump corresponding thereto is disposed through The vent on the vacuum adsorption device evacuates the vacuum adsorption device.
  • the inkjet printing apparatus may further include a control unit for controlling opening and closing of each of the vacuum pumps, for any of the vacuum adsorption devices, when the vacuum adsorption device needs to eliminate an object to be printed
  • the vacuum pump corresponding to the vacuum adsorption device is controlled to be turned on.
  • control unit controls the vacuum pump opening corresponding to the vacuum adsorption device of the inkjet print head at the edge of the printing area on the object to be printed, and controls the printing area of the inkjet print head located at the object to be printed The vacuum pump corresponding to the internal vacuum adsorption device is closed.
  • control unit it is possible to operate only the vacuum suction device located at the edge of the printing area, and the vacuum suction device located inside the printing area does not operate, and thus, cost can be saved.
  • the droplet removal device can be a vacuum adsorption device, the inkjet printing device further comprising a vacuum pump coupled to at least one of the vacuum adsorption devices.
  • the vacuum pump can be coupled to each of a plurality of vacuum adsorption devices.
  • the inkjet printing apparatus may further include a control unit and at least one valve switch; the valve switch is in one-to-one correspondence with the vacuum adsorption device, and disposed on a vacuum adsorption device corresponding thereto; the control unit It can be used to control the opening and closing of each of the valve switches and vacuum pumps.
  • the control unit controls the valve switch corresponding to the vacuum adsorption device
  • the vacuum pump is turned on to enable the vacuum pump to evacuate the vacuum adsorption device through the valve switch.
  • control unit may control the opening of the valve switch corresponding to the vacuum suction device of the inkjet print head at the edge of the printing area of the object to be printed, and control the printing of the inkjet print head located at the object to be printed.
  • the corresponding valve switch of the vacuum adsorption device inside the area is closed.
  • control unit it is possible to operate only the vacuum suction device located at the edge of the printing area, and the vacuum suction device located inside the printing area does not operate, and thus, cost can be saved.
  • the droplet removal device may be an electrostatic adsorption device
  • the spray The ink printing apparatus further includes a control unit that controls the liquid droplet at the position corresponding to the edge region of the electrostatic adsorption device to be printed on the object to be printed for any of the electrostatic adsorption devices, the control unit controls the The potential of the electrostatic adsorption device and the object to be printed is such that an electrostatic field is formed between the electrostatic adsorption device and the object to be printed, and the electrostatic adsorption device is opposite in polarity to the charge of the droplet.
  • control unit can control the electrostatic adsorption device of the inkjet print head located at the edge of the printing area of the object to be printed, and control the electrostatic adsorption device of the inkjet print head located inside the printing area of the object to be printed. Not working.
  • control unit By using the control unit, it is possible to operate only the electrostatic adsorption device located at the edge of the printing area, and the electrostatic adsorption device located inside the printing area does not work, and thus, cost can be saved.
  • Another embodiment of the present application provides a display production apparatus, which may include the inkjet printing apparatus provided by any of the foregoing embodiments of the present application.
  • the above-described inkjet printhead passes at least one around the area where at least one nozzle is located.
  • the edge region is provided with a droplet removing device, which uses the droplet removing device to eliminate droplets on the object to be printed corresponding to the edge region where the droplet removing device is located, thereby eliminating the region outside the printing region in the inkjet printing process Droplets, which in turn improve the quality of the product.
  • FIG. 1 is a schematic plan view showing an inkjet print head according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of an inkjet printing apparatus according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of an inkjet printing apparatus according to another embodiment of the present application.
  • FIG. 4 is a schematic diagram of a printing substrate of the inkjet printing apparatus illustrated in FIG. 2 or FIG. 3 according to another embodiment of the present application;
  • FIG. 5 is a schematic structural diagram of an inkjet printing apparatus according to another embodiment of the present application.
  • FIG. 6 is a schematic diagram of a printing substrate of the inkjet printing apparatus illustrated in FIG. 5 according to another embodiment of the present application.
  • Embodiments of the present application provide an inkjet print head, an inkjet printing device, and a display device
  • the production equipment is used to eliminate droplets falling on the area outside the printing area in the inkjet printing process, thereby improving the quality of the produced product.
  • FIG. 1 is a schematic diagram of a planar structure of an inkjet print head according to an embodiment of the present application.
  • the inkjet printhead can include a plurality of nozzles 11 and four droplet removal devices 12.
  • the plurality of nozzles 11 are distributed in an array, and the four droplet removing devices 12 are disposed in four edge regions 14 around the rectangular region 13 where the plurality of nozzles 11 are located (ie, the region within the dotted line frame in FIG. 1) (ie, the dotted frame in FIG.
  • each of the four edge regions 14 is provided with a droplet removing device 12 for eliminating droplets on the object to be printed corresponding to the edge region where the droplet removing device 12 is located .
  • the droplet removing device 12 disposed at the edge region 14 to the left of the rectangular region 13 can eliminate the droplet at the corresponding position of the left edge region 14.
  • the droplets may be satellite droplets generated by the nozzle 11 at the time of printing, or may be other droplets such as accidentally dropped.
  • the inkjet print head is provided with a droplet removing device 12 by four edge regions 14 around the rectangular region 13 in which the plurality of nozzles 11 are located, and the droplet removing device 12 is used to eliminate the position corresponding to the edge region of the droplet removing device 12.
  • the droplets at the surface can reduce or eliminate droplets on the area outside the printing area in the inkjet printing process, thereby improving the quality of the product.
  • the inkjet printhead may also be provided with droplet removal means in one or more of the four edge regions around the rectangular area in which the plurality of nozzles are located, and a plurality of liquids may be provided in each edge region.
  • the droplet removing device the embodiment of the present application does not limit the number of edge regions provided with the droplet removing device and the number of droplet removing devices.
  • the plurality of nozzles of the inkjet print head may also be designed in other distributions according to actual needs, and the regions in which the plurality of nozzles are located may have other shapes.
  • the embodiment of the present application does not limit the distribution of the plurality of nozzles.
  • the inkjet print head provided by the embodiment of the present application may include one or more nozzles, and the embodiment of the present application does not limit the number of nozzles.
  • the droplet removal device 12 can be a vacuum adsorption device or electrostatically attracted Attached to the device.
  • the volume and weight of the droplets may be only one-thousandth to one-tenth of a millisecond of the ink droplets normally printed by the nozzle.
  • the liquid droplet removing device 12 described above is a vacuum suction device, by controlling the magnitude of the vacuum negative pressure, it is possible to achieve the removal of the liquid droplets without affecting the ink droplets normally printed by the nozzle.
  • the liquid droplet removing device 12 described above is an electrostatic adsorption device, by controlling the size of the electrostatic field, it is possible to remove the liquid droplets without affecting the ink droplets normally printed by the nozzle. For larger droplets, droplet removal can also be achieved by appropriately adjusting the negative pressure of the vacuum adsorption device and the magnitude of the electric field of the electrostatic adsorption device.
  • an embodiment of the present application provides an inkjet printing apparatus that can include an inkjet printhead provided by any of the above embodiments of the present application.
  • the above-described inkjet printhead uses the droplet removal device by providing a droplet removing device at at least one edge region around the region where the at least one nozzle is located.
  • the device eliminates droplets at positions corresponding to the edge regions where the droplet removing device is located, thereby eliminating droplets on regions other than the printing region in the inkjet printing process, thereby improving the quality of the product.
  • the inkjet printing apparatus provided in the embodiment of the present application will be described below by taking a droplet removing device as a vacuum adsorption device or an electrostatic adsorption device as an example.
  • an inkjet printing apparatus may include an inkjet printhead 21, four vacuum pumps 22, and a control unit 23 provided by the foregoing embodiments of the present application.
  • the inkjet print head 21 may include a plurality of nozzles 211, and four edge regions around the rectangular area where the plurality of nozzles 211 are located may be provided with a vacuum adsorption device 212 for eliminating the vacuum adsorption device.
  • the droplet at the corresponding position in the edge region of 212 may be provided with a vacuum adsorption device 212 for eliminating the vacuum adsorption device.
  • the vacuum pump 22 is in one-to-one correspondence with the vacuum adsorption device 212.
  • the vacuum pump 22 corresponding thereto passes.
  • the vent 213 (shown as a black dot in FIG. 2) disposed on the vacuum adsorption unit 212 evacuates the vacuum adsorption unit 212.
  • the vacuum pump 22 and each vent 213 may be connected by a pipe (i.e., as indicated by a broken line in Fig. 2).
  • the control unit 23 can control the opening and closing of each vacuum pump 22, for any vacuum adsorption device 212, when the vacuum adsorption device 212 needs to be eliminated and the vacuum adsorption device 212 When the edge region corresponds to the droplet at the position, the control unit 23 controls the vacuum pump 22 corresponding to the vacuum adsorption device 212 to be turned on.
  • control unit 23 controls the vacuum pump 22 corresponding to the vacuum adsorption device 212 of the inkjet print head located at the edge of the printed area of the printable object to be opened, and controls the printing of the inkjet print head located at the object to be printed.
  • the vacuum pump 22 corresponding to the vacuum adsorption device 212 inside the region is closed. With the control unit 23, only the vacuum suction device 212 located at the edge of the printing area can be operated, and the vacuum suction device 212 located inside the printing area does not operate, and therefore, cost can be saved.
  • an inkjet printing apparatus may include an inkjet print head 41, a vacuum pump 42, a control unit 43, and at least one valve switch 413 provided by the foregoing embodiments of the present application (ie, FIG. 3 The black rectangle is shown).
  • the inkjet print head 41 may include a plurality of nozzles 411, and each of the four edge regions around the rectangular area where the plurality of nozzles 411 are located is provided with a vacuum adsorption device 412 for eliminating the vacuum adsorption device 412. The droplet at the corresponding position in the edge area.
  • a vacuum pump 42 is connected to each vacuum adsorption device 412.
  • the valve switch 413 is in one-to-one correspondence with the vacuum adsorption device 412, and is disposed on the vacuum adsorption device 412 corresponding thereto.
  • the control unit 43 is for controlling the opening and closing of each of the valve switch 413 and the vacuum pump 42.
  • the control unit 43 controls the valve switch 413 and the vacuum pump corresponding to the vacuum adsorption device 412.
  • the opening 42 causes the vacuum pump 42 to evacuate the vacuum adsorption unit 412 through the valve switch 413.
  • the vacuum pump 42 and each of the valve switches 413 can be connected by a pipe (i.e., as indicated by a broken line in Fig. 3).
  • control unit 43 controls the opening of the valve switch 413 corresponding to the vacuum adsorption device 412 at the edge of the print area of the inkjet printhead, and controls the vacuum adsorption device 412 corresponding to the interior of the print area of the inkjet printhead.
  • the valve switch 413 is closed.
  • the position of the valve switch may not be disposed on the vacuum adsorption device as long as the valve switch is in one-to-one correspondence with the vacuum adsorption device, and for any vacuum adsorption device, when the vacuum adsorption device needs to be eliminated and the vacuum adsorption device Edge area
  • the vacuum pump can vacuum the vacuum adsorption device through a valve switch corresponding to the vacuum adsorption device, and the embodiment of the present application does not limit the position of the valve switch.
  • both the control unit 23 and the control unit 43 in the above embodiments can be used to control the operation of the vacuum adsorption device of the inkjet print head at the edge of the printing area, and control the vacuum adsorption device of the inkjet print head located inside the printing area. Not working.
  • FIG. 4 is a schematic diagram of a printing substrate of an inkjet printing apparatus provided by the above embodiment of the present application.
  • the dotted line frame in Fig. 4 indicates the printing position, and the left and upper portions of the position 1 shown in Fig. 4 are the edges of the printing area 51 of the substrate 5 (the substrate 5 includes the printing area 51 and the non-printing area 52), and the upper portion of the position 2
  • the edge of the printing area 51 of the substrate 5, the right and lower portions of the position 3 are the edges of the printing area 51 of the substrate 5, and the position 4 is the intermediate portion of the printing area 51 of the substrate 5.
  • the inkjet printhead of the inkjet printing apparatus performs inkjet printing on the entire substrate 5 in a scanning manner.
  • the inkjet printhead may include a first vacuum adsorption device 2121, a second vacuum adsorption device 2122, a third vacuum adsorption device 2123, and a fourth vacuum adsorption device 2124.
  • the control unit (not shown in FIG. 4) controls the first vacuum adsorption device 2121 and the second vacuum adsorption device 2122 to operate, and the third vacuum adsorption device 2123 and the fourth
  • the vacuum adsorption device 2124 is inoperative, such that the first vacuum adsorption device 2121 and the second vacuum adsorption device 2122 are capable of eliminating droplets at locations corresponding to their edge regions.
  • the control unit controls the second vacuum adsorption device 2122 to operate, and the first vacuum adsorption device 2121, the third vacuum adsorption device 2123, and the fourth vacuum adsorption device 2124 do not operate, so that The second vacuum adsorption device 2122 is capable of eliminating droplets at locations corresponding to the edge regions in which it is located.
  • the control unit controls the third vacuum adsorption device 2123 and the fourth vacuum adsorption device 2124 to operate, and the first vacuum adsorption device 2121 and the second vacuum adsorption device 2122 do not operate, so that The three vacuum adsorption device 2123 and the fourth vacuum adsorption device 2124 are capable of eliminating droplets at positions corresponding to the edge regions in which they are located.
  • the control unit controls the first vacuum adsorption device 2121, the second vacuum adsorption device 2122, the third vacuum adsorption device 2123, and the fourth vacuum adsorption device 2124 to be inoperative.
  • the control unit controls the vacuum suction device of the inkjet print head located at the edge of the printing area 51 to operate, and controls the vacuum adsorption of the inkjet print head located inside the printing area 51.
  • the device does not operate, such that the area 52 of the substrate 5 other than the printed area 51 There is no droplet on the non-printing area 52, or the droplets are effectively reduced, so that the product quality can be improved.
  • the control unit it is possible to operate only the vacuum suction device located at the edge of the printing area 51, and the vacuum suction device located inside the printing area 51 does not operate, and therefore, cost can be saved.
  • the droplet removing device is a vacuum adsorption device
  • the embodiment shown in FIG. 2 and the example shown in FIG. 3 may be combined, inkjet.
  • the printing device can include one or more vacuum pumps, each of which can in turn be coupled to one or more vacuum adsorption devices.
  • an inkjet printing apparatus provided by another embodiment of the present application may include the inkjet printhead 31 and the control unit 32 provided by the above embodiments of the present application.
  • the inkjet print head 31 may include a plurality of nozzles 311, and each of the four edge regions around the rectangular region where the plurality of nozzles 311 are located may be provided with an electrostatic adsorption device 312 for eliminating the electrostatic adsorption device.
  • the 312 is located at the edge of the area corresponding to the droplet at the location.
  • the control unit 32 can control the electrostatic adsorption device 312 and the object to be printed (for example, a substrate)
  • the potential is such that an electrostatic field is formed between the electrostatic adsorption device 312 and the object to be printed, and the electrostatic adsorption device 312 is opposite in polarity to the charge carried by the droplet.
  • the control unit 32 controls the potential of the electrostatic adsorption device 312 to be high, and the potential of the substrate is low, so that an electrostatic field is formed between the electrostatic adsorption device 312 and the substrate, according to the opposite charge phase.
  • the principle of suction the negatively charged droplets are sucked away by the electrostatic adsorption device 312.
  • control unit 32 can control the electrostatic adsorption device 312 of the inkjet printhead 31 located at the edge of the print zone to operate, and control the electrostatic adsorption device 312 of the inkjet printhead 31 located inside the print zone to be inoperative.
  • control unit 32 it is possible to operate only the electrostatic adsorption device 312 located at the edge of the printing area, and the electrostatic adsorption device 312 located inside the printing area does not operate, and thus, cost can be saved.
  • FIG. 6 is a schematic diagram of printing an inkjet printing device according to another embodiment of the present application.
  • the dotted line frame in Fig. 6 indicates the printing position, the left and upper portions of the position 1 are the edges of the printing region 51 of the substrate 5, the upper portion of the position 2 is the edge of the printing region 51 of the substrate 5, and the right and lower portions of the position 3 are the substrates.
  • the edge of the printing area 51 of 5 is the intermediate area of the printing area 51 of the substrate 5.
  • Inkjet printing of inkjet printing equipment The head 21 performs inkjet printing on the entire substrate 5 in a scanning manner.
  • the inkjet print head 21 may include a first electrostatic adsorption device 3121, a second electrostatic adsorption device 3122, a third electrostatic adsorption device 3123, and a fourth electrostatic adsorption device 3124.
  • the control unit (not shown in FIG. 6) controls the first electrostatic adsorption device 3121 and the second electrostatic adsorption device 3122 to operate, and the third electrostatic adsorption device 3123 and the fourth The electrostatic adsorption device 3124 does not operate, so that the first electrostatic adsorption device 3121 and the second electrostatic adsorption device 3122 can eliminate droplets at positions corresponding to the edge regions in which they are located.
  • the control unit controls the second electrostatic adsorption device 3122 to operate, and the first electrostatic adsorption device 3121, the third electrostatic adsorption device 3123, and the fourth electrostatic adsorption device 3124 do not operate, so that The second electrostatic adsorption device 3122 is capable of eliminating droplets at positions corresponding to the edge regions in which it is located.
  • the control unit controls the third electrostatic adsorption device 3123 and the fourth electrostatic adsorption device 3124 to operate, and the first electrostatic adsorption device 3121 and the second electrostatic adsorption device 3122 do not operate, so that The three electrostatic adsorption device 3123 and the fourth electrostatic adsorption device 3124 are capable of eliminating droplets at positions corresponding to the edge regions in which they are located.
  • the control unit controls the first electrostatic adsorption device 3121, the second electrostatic adsorption device 3122, the third electrostatic adsorption device 3123, and the fourth electrostatic adsorption device 3124 to be inoperative.
  • the control unit controls the electrostatic adsorption device of the inkjet print head 31 located at the edge of the printing area 51 to operate, and controls the inkjet print head 31 to be located inside the printing area 51.
  • the electrostatic adsorption device does not operate, so that no droplets are present on the region 52 other than the printing region 51 of the substrate 5, or the droplets can be effectively reduced, so that the product quality can be improved, and the control unit can make only
  • the electrostatic adsorption device located at the edge of the printing area 51 operates, and the electrostatic adsorption device located inside the printing area 51 does not operate, and thus, cost can be saved.
  • yet another embodiment of the present application provides a display production apparatus that can include the inkjet printing apparatus provided by any of the above-described embodiments of the present application.
  • the inkjet printing apparatus includes the inkjet printhead provided by the above embodiment, and the above-described inkjet printhead passes through at least one edge around the area where the at least one nozzle is located
  • An area droplet removing device is used to eliminate droplets at a position corresponding to an edge region where the droplet removing device is located, thereby eliminating an area other than the printing area in the inkjet printing process Droplets, which in turn improve the quality of the product.
  • the embodiments of the present application provide an inkjet printhead, an inkjet printing apparatus, and a display production apparatus, which are disposed by providing a droplet removing device at at least one edge region around a region where at least one nozzle is located.
  • the removing device eliminates the droplets at the position corresponding to the edge region where the droplet removing device is located, so that the droplets on the regions other than the printing region in the inkjet printing process can be eliminated, thereby improving the quality of the product.

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  • Coating Apparatus (AREA)

Abstract

提供了一种喷墨打印头及包括该喷墨打印头的喷墨打印设备、显示器生产设备。该喷墨打印头（21、31、41）包括至少一个喷嘴（11、211、311、411），在所述至少一个喷嘴所在区域周围的至少一个边缘区域（14）设置有液滴去除装置（12），所述液滴去除装置用于消除或减少待打印物上的与该液滴去除装置所在边缘区域对应位置处的液滴。该喷墨打印头可以消除或减少喷墨打印工艺中打印区域以外的区域上的液滴，从而提高产品的品质。

Description

喷墨打印头、喷墨打印设备及显示器生产设备 技术领域
本申请涉及显示技术领域，特别涉及一种喷墨打印头、喷墨打印设备及显示器生产设备。
背景技术
当前，为了进一步提高材料利用率、减小生产工艺的复杂性，喷墨打印技术被应用于平板显示器的制备过程中。例如，喷墨打印技术可应用于柔性OLED薄膜封装工艺中，可以利用其将有机材料以喷墨的方式均匀的沉积在OLED发光器件上。
喷墨打印的基本工作原理可以概述如下：先产生小墨滴，再利用喷嘴把细小的墨滴导引至设定的位置上，墨滴越小，滴落的位置越精确，打印的分辨率就越高。由于喷墨打印对喷墨量和喷墨位置的精度要求很高，通常的喷墨打印头都是由很多细小的微型喷嘴组成，每一个喷嘴的滴下量一般<100皮升(pL)。在喷墨时，很容易在墨滴的设定位置以外溅射出零星小墨滴，该现象称之为卫星不良，溅射出的零星小墨滴称之为卫星滴。当喷墨打印工艺发生在待打印物(例如：基板)的打印区域的中间时，溅射出的卫星滴仍然滴落在打印区域，但是当喷墨打印工艺发生在待打印物的打印区域的边缘时，溅射出的卫星滴就会滴落到待打印物的打印区域以外的区域上。而打印区域以外的区域上的卫星滴会对后续的生产工艺产生不良效果，例如，在后续化学气相沉积工艺中产生无机层沉积断层、在后续贴膜工艺中产生贴合气泡等，从而影响最终的产品品质。
综上所述，在平板显示器的制备过程中，使用喷墨打印工艺对待打印物进行打印时，滴落到打印区域以外的区域上的卫星滴会对后续的生产工艺产生不良效果，从而影响最终的产品品质。
发明内容
本申请实施例提供了一种喷墨打印头、喷墨打印设备及显示器生产设备，用以消除或减少喷墨打印工艺中打印区域以外的区域上的液滴，从而提高产品的品质。
本申请实施例提供的喷墨打印头包括至少一个喷嘴以及设置在所述至少一个喷嘴所在区域周围的至少一个边缘区域的液滴去除装置，所述液滴去除装置用于消除待打印物上的与该液滴去除装置所在边缘区域对应位置处的液滴。
本申请实施例提供的喷墨打印头，通过在至少一个喷嘴所在区域周围的至少一个边缘区域设置液滴去除装置，使用该液滴去除装置消除待打印物上与该液滴去除装置所在边缘区域对应位置处的液滴，从而可以消除喷墨打印工艺中打印区域以外的区域上的液滴，进而提高产品的品质。
在一些实施例中，所述喷墨打印头可包括多个喷嘴，所述多个喷嘴所在区域可以为矩形区域。
在一些实施例中，所述多个喷嘴所在区域周围的四个边缘区域可各设置有一个所述液滴去除装置。
在一些实施例中，所述液滴去除装置可包括真空吸附装置或静电吸附装置。在本发明的实施例中，真空吸附装置可以是任何适当的能够吸除液滴的机械部件，包括但不限于表面具有微孔的真空吸附垫或真空吸附板等。静电吸附装置可以是能够与待打印物形成静电场的部件，包括但不限于金属垫、金属棒和金属条等。
本申请的另一实施例提供了一种喷墨打印设备，该喷墨打印设备可包括本申请的上述实施例中的任一实施例提供的喷墨打印头。
由于本申请实施例提供的喷墨打印设备包括上述的喷墨打印头，而上述的喷墨打印头通过在至少一个喷嘴所在区域周围的至少一个边缘区域设置液滴去除装置，使用该液滴去除装置消除待打印物上的与该液滴去除装置所在边缘区域对应位置处的液滴，从而可以消除喷墨打印工艺中打印区域以外的区域上的液滴，进而提高产品的品质。
在一些实施例中，所述液滴去除装置可以为真空吸附装置，该喷墨打印设备还可包括至少一个真空泵，所述真空泵与所述至少一个真空吸附装置一一对应。
在一些实施例中，针对任一所述真空吸附装置，当该真空吸附装置需要消除待打印物上的与该真空吸附装置所在边缘区域对应位置处的液滴时，与其对应的真空泵通过设置在该真空吸附装置上的通气口给该真空吸附装置抽真空。
在一些实施例中，该喷墨打印设备还可包括控制单元，用于控制每一所述真空泵的开启与关闭，针对任一所述真空吸附装置，当该真空吸附装置需要消除待打印物上的与该真空吸附装置所在边缘区域对应位置处的液滴时，控制与该真空吸附装置对应的真空泵开启。
在一些实施例中，所述控制单元控制与喷墨打印头的位于待打印物上的打印区域边缘的真空吸附装置对应的真空泵开启，并且控制与喷墨打印头的位于待打印物的打印区域内部的真空吸附装置对应的真空泵关闭。
利用该控制单元，可以使得只有位于打印区域边缘的真空吸附装置工作，而位于打印区域内部的真空吸附装置并不工作，因此，可以节约成本。
在一些实施例中，所述液滴去除装置可以为真空吸附装置，该喷墨打印设备还包括一个真空泵，所述真空泵与至少一个所述真空吸附装置相连。
在一些实施例中，所述真空泵可以与多个真空吸附装置中的每一真空吸附装置相连。
在一些实施例中，该喷墨打印设备还可包括控制单元和至少一个阀门开关；所述阀门开关与所述真空吸附装置一一对应，设置在与其对应的真空吸附装置上；所述控制单元可用于控制每一所述阀门开关和真空泵的开启与关闭。针对任一所述真空吸附装置，当该真空吸附装置需要消除待打印物上与该真空吸附装置所在边缘区域对应位置处的液滴时，所述控制单元控制与该真空吸附装置对应的阀门开关以及所述真空泵开启，使得所述真空泵能够通过该阀门开关给该真空吸附装置抽真空。
在一些实施例中，所述控制单元可以控制与喷墨打印头的位于待打印物的打印区域边缘的真空吸附装置对应的阀门开关开启，并且与控制喷墨打印头的位于待打印物的打印区域内部的真空吸附装置对应的阀门开关关闭。
利用该控制单元，可以使得只有位于打印区域边缘的真空吸附装置工作，而位于打印区域内部的真空吸附装置并不工作，因此，可以节约成本。
在一些实施例中，所述液滴去除装置可以为静电吸附装置，该喷 墨打印设备还包括控制单元，针对任一所述静电吸附装置，当该静电吸附装置需要消除待打印物上与该静电吸附装置所在边缘区域对应位置处的液滴时，所述控制单元控制该静电吸附装置和待打印物的电位，使得该静电吸附装置与待打印物之间形成静电场，并且，该静电吸附装置与液滴所带电荷的极性相反。
在一些实施例中，所述控制单元可控制喷墨打印头的位于待打印物的打印区域边缘的静电吸附装置工作，并且控制喷墨打印头的位于待打印物的打印区域内部的静电吸附装置不工作。
利用过该控制单元，可以使得只有位于打印区域边缘的静电吸附装置工作，而位于打印区域内部的静电吸附装置并不工作，因此，可以节约成本。
本申请的另一实施例提供的一种显示器生产设备，可包括本申请前述实施例中的任一实施例提供的喷墨打印设备。
由于本申请实施例提供的显示器生产设备采用上述的喷墨打印设备，并且，喷墨打印设备采用上述的喷墨打印头，而上述的喷墨打印头通过在至少一个喷嘴所在区域周围的至少一个边缘区域设置液滴去除装置，使用该液滴去除装置消除待打印物上的与该液滴去除装置所在边缘区域对应位置处的液滴，从而可以消除喷墨打印工艺中打印区域以外的区域上的液滴，进而提高产品的品质。
附图说明
图1为本申请的一个实施例提供的喷墨打印头的平面结构示意图；
图2为本申请的一个实施例提供的喷墨打印设备的结构示意图；
图3为本申请的另一实施例提供的喷墨打印设备的结构示意图；
图4为本申请的另一实施例提供的图2或图3所图示的喷墨打印设备打印基板的示意图；
图5为本申请的另一实施例提供的喷墨打印设备的结构示意图；
图6为本申请的另一实施例提供的图5所图示的喷墨打印设备打印基板的示意图。
具体实施方式
本申请实施例提供了一种喷墨打印头、喷墨打印设备及显示器生 产设备，用以消除喷墨打印工艺中滴落到打印区域以外的区域上的液滴，从而提高所生产的产品的品质。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
参见图1，图1为本申请实施例提供的一种喷墨打印头的平面结构示意图。从图1中可以看出，该喷墨打印头可包括多个喷嘴11和四个液滴去除装置12。多个喷嘴11成阵列分布，四个液滴去除装置12设置在多个喷嘴11所在矩形区域13(即图1中虚线框内的区域)周围的四个边缘区域14(即图1中虚线框外的区域)，并且该四个边缘区域14各设置有一个液滴去除装置12，液滴去除装置12用于消除待打印物上的与液滴去除装置12所在边缘区域对应位置处的液滴。例如，设置在矩形区域13左边的边缘区域14的液滴去除装置12可以消除左边的边缘区域14对应位置处的液滴。液滴可以是喷嘴11在打印时所产生的卫星滴，也可以是别的如意外滴入的小液滴等。
该喷墨打印头通过在多个喷嘴11所在矩形区域13周围的四个边缘区域14各设置一个液滴去除装置12，使用液滴去除装置12消除与该液滴去除装置12所在边缘区域对应位置处的液滴，从而可以减少或消除喷墨打印工艺中打印区域以外的区域上的液滴，进而提高产品的品质。
在一些实施例中，喷墨打印头也可以在多个喷嘴所在矩形区域周围的四个边缘区域中的一个或多个边缘区域设置液滴去除装置，每个边缘区域中也可以设置多个液滴去除装置，本申请实施例并不限制设置有液滴去除装置的边缘区域的数量以及液滴去除装置的数量。
在其它实施例中，喷墨打印头的多个喷嘴也可以根据实际需要而设计成其它的分布形式，多个喷嘴所在区域可以为其它的形状，本申请实施例并不限制多个喷嘴的分布形式以及多个喷嘴所在区域的形状。
此外，本申请实施例提供的喷墨打印头可以包括一个或多个喷嘴，本申请实施例并不限制喷嘴的数量。
在一些实施例中，液滴去除装置12可以为真空吸附装置或静电吸 附装置。
液滴的体积和重量可能只有喷嘴正常打印出来的墨滴的千分之一到万分之一。当上述的液滴去除装置12为真空吸附装置时，通过控制真空负压的大小，可以实现在去除液滴的同时而不影响喷嘴正常打印出来的墨滴。当上述的液滴去除装置12为静电吸附装置时，通过控制静电场的大小，可以实现在去除液滴的同时而不影响喷嘴正常打印出来的墨滴。针对较大的液滴，通过适当调整真空吸附装置的负压以及静电吸附装置的电场大小，同样能够实现液滴的去除。
基于同一发明构思，本申请实施例提供了一种喷墨打印设备，该喷墨打印设备可包括本申请的上述实施例中的任一实施例提供的喷墨打印头。
由于本申请实施例提供的喷墨打印设备采用上述的喷墨打印头，而上述的喷墨打印头通过在至少一个喷嘴所在区域周围的至少一个边缘区域设置液滴去除装置，使用该液滴去除装置消除与该液滴去除装置所在边缘区域对应位置处的液滴，从而可以消除喷墨打印工艺中打印区域以外的区域上的液滴，进而提高产品的品质。
下面结合附图，以液滴去除装置为真空吸附装置或静电吸附装置为例对本申请实施例提供的喷墨打印设备进行说明。
参见图2，本申请的一个实施例提供的喷墨打印设备可包括本申请前述实施例提供的喷墨打印头21、四个真空泵22和控制单元23。
该喷墨打印头21可包括多个喷嘴211，且多个喷嘴211所在矩形区域周围的四个边缘区域可以各设置有一个真空吸附装置212，该真空吸附装置212用于消除与该真空吸附装置212所在边缘区域对应位置处的液滴。
真空泵22与真空吸附装置212一一对应，针对任一真空吸附装置212，当该真空吸附装置212需要消除与该真空吸附装置212所在边缘区域对应位置处的液滴时，与其对应的真空泵22通过设置在该真空吸附装置212上的通气口213(即图2中黑点所示)使该真空吸附装置212抽真空。真空泵22与每一通气口213可以通过管道相连(即图2中虚线所示)。
控制单元23可控制每一真空泵22的开启与关闭，针对任一真空吸附装置212，当该真空吸附装置212需要消除与该真空吸附装置212 所在边缘区域对应位置处的液滴时，控制单元23控制与该真空吸附装置212对应的真空泵22开启。
在一些实施例中，控制单元23控制与喷墨打印头的位于打待打印物的印区域边缘的真空吸附装置212对应的真空泵22开启，并且控制与喷墨打印头的位于待打印物的打印区域内部的真空吸附装置212对应的真空泵22关闭。利用该控制单元23，可以使得只有位于打印区域边缘的真空吸附装置212工作，而位于打印区域内部的真空吸附装置212并不工作，因此，可以节约成本。
参见图3，本申请的另一实施例提供的喷墨打印设备可包括本申请的前述实施例提供的喷墨打印头41、一个真空泵42、控制单元43和至少一个阀门开关413(即图3中黑体矩形所示)。
该喷墨打印头41可包括多个喷嘴411，且多个喷嘴411所在矩形区域周围的四个边缘区域各设置有一个真空吸附装置412，该真空吸附装置412用于消除与该真空吸附装置412所在边缘区域对应位置处的液滴。
真空泵42与每一真空吸附装置412相连。阀门开关413与真空吸附装置412一一对应，并设置在与其对应的真空吸附装置412上。控制单元43用于控制每一阀门开关413和真空泵42的开启与关闭。针对任一真空吸附装置412，当该真空吸附装置412需要消除与该真空吸附装置412所在边缘区域对应位置处的液滴时，控制单元43控制与该真空吸附装置412对应的阀门开关413以及真空泵42开启，使得真空泵42能够通过该阀门开关413给该真空吸附装置412抽真空。真空泵42与每一阀门开关413可以通过管道相连(即图3中虚线所示)。
在一些实施例中，控制单元43控制与喷墨打印头的位于打印区域边缘的真空吸附装置412对应的阀门开关413开启，并且控制与喷墨打印头的位于打印区域内部的真空吸附装置412对应的阀门开关413关闭。利用该控制单元43，使得只有位于打印区域边缘的真空吸附装置412工作，而位于打印区域内部的真空吸附装置412并不工作，因此，可以节约成本。
在一些实施例中，阀门开关的位置可不设置在真空吸附装置上，只要保证阀门开关与真空吸附装置一一对应，并且针对任一真空吸附装置，当该真空吸附装置需要消除与该真空吸附装置所在边缘区域对 应位置处的液滴时，真空泵可以通过与该真空吸附装置对应的阀门开关给该真空吸附装置抽真空即可，本申请实施例并不限制阀门开关的位置。
由上可知，上述实施例中的控制单元23和控制单元43都可用于控制喷墨打印头的位于打印区域边缘的真空吸附装置工作，并且控制喷墨打印头的位于打印区域内部的真空吸附装置不工作。
图4为本申请的上述实施例提供的喷墨打印设备打印基板的示意图。图4中虚线框表示打印位置，图4中所示的位置1的左边与上方部分为基板5(基板5包括打印区域51和非打印区域52)的打印区域51的边缘，位置2的上方部分为基板5的打印区域51的边缘，位置3的右边与下方部分为基板5的打印区域51的边缘，位置4为基板5的打印区域51的中间区域。喷墨打印设备的喷墨打印头在整个基板5上以扫描的方式来进行喷墨打印。该喷墨打印头可包括第一真空吸附装置2121、第二真空吸附装置2122、第三真空吸附装置2123和第四真空吸附装置2124。当需要打印位置1处的基板5的部分时，控制单元(图4中并未示出)控制第一真空吸附装置2121和第二真空吸附装置2122工作，且第三真空吸附装置2123和第四真空吸附装置2124不工作，使得第一真空吸附装置2121和第二真空吸附装置2122能够消除与其所在边缘区域对应位置处的液滴。当需要打印位置2处的基板5的部分时，控制单元控制第二真空吸附装置2122工作，且第一真空吸附装置2121、第三真空吸附装置2123和第四真空吸附装置2124不工作，使得第二真空吸附装置2122能够消除与其所在边缘区域对应位置处的液滴。当需要打印位置3处的基板5的部分时，控制单元控制第三真空吸附装置2123和第四真空吸附装置2124工作，且第一真空吸附装置2121和第二真空吸附装置2122不工作，使得第三真空吸附装置2123和第四真空吸附装置2124能够消除与其所在边缘区域对应位置处的液滴。当需要打印位置4处的基板5的部分时，控制单元控制第一真空吸附装置2121、第二真空吸附装置2122、第三真空吸附装置2123和第四真空吸附装置2124不工作。以此类推，当需要对基板5的其它位置进行打印时，控制单元控制喷墨打印头的位于打印区域51边缘的真空吸附装置工作，并且控制喷墨打印头的位于打印区域51内部的真空吸附装置不工作，这样，基板5的打印区域51以外的区域52 (即非打印区域52)上就不会有液滴，或者液滴得到有效地减少，从而可以提高产品品质。并且通过该控制单元，可以使得只有位于打印区域51边缘的真空吸附装置工作，而位于打印区域51内部的真空吸附装置不工作，因此，可以节约成本。
在一些实施例中，当液滴去除装置为真空吸附装置时，还可以有其它的方式实现喷墨打印设备，例如，图2所示的实施例和图3所示的示例可以结合，喷墨打印设备可以包括一个或多个真空泵，每一真空泵又可以与一个或多个真空吸附装置相连。
参见图5，本申请的另一实施例提供的喷墨打印设备可包括本申请的上述实施例提供的喷墨打印头31和控制单元32。
该喷墨打印头31可包括多个喷嘴311，且多个喷嘴311所在矩形区域周围的四个边缘区域可各设置有一个静电吸附装置312，该静电吸附装置312用于消除与该静电吸附装置312所在边缘区域对应位置处的液滴。
针对任一静电吸附装置312，当该静电吸附装置312需要消除与该静电吸附装置312所在边缘区域对应位置处的液滴时，控制单元32可控制该静电吸附装置312和待打印物(例如基板)的电位，使得该静电吸附装置312与待打印物之间形成静电场，并且，该静电吸附装置312与液滴所带电荷的极性相反。例如，若液滴带负电，控制单元32控制静电吸附装置312的电位为高电位，并且基板的电位为低电位，这样，静电吸附装置312与基板之间就会形成静电场，根据异性电荷相吸的原理，带负电的液滴就会被静电吸附装置312吸走。
在一些实施例中，控制单元32可控制喷墨打印头31的位于打印区域边缘的静电吸附装置312工作，并且控制喷墨打印头31的位于打印区域内部的静电吸附装置312不工作。通过该控制单元32，可以使得只有位于打印区域边缘的静电吸附装置312工作，而位于打印区域内部的静电吸附装置312不工作，因此，可以节约成本。
图6为本申请的另一实施例提供的喷墨打印设备对基板进行打印的示意图。图6中虚线框表示打印位置，位置1的左边与上方部分为基板5的打印区域51的边缘，位置2的上方部分为基板5的打印区域51的边缘，位置3的右边与下方部分为基板5的打印区域51的边缘，位置4为基板5的打印区域51的中间区域。喷墨打印设备的喷墨打印 头21在整个基板5上以扫描的方式来进行喷墨打印。该喷墨打印头21可包括第一静电吸附装置3121、第二静电吸附装置3122、第三静电吸附装置3123和第四静电吸附装置3124。当需要打印位置1处的基板5的部分时，控制单元(图6中并未示出)控制第一静电吸附装置3121和第二静电吸附装置3122工作，且第三静电吸附装置3123和第四静电吸附装置3124不工作，使得第一静电吸附装置3121和第二静电吸附装置3122能够消除与其所在边缘区域对应位置处的液滴。当需要打印位置2处的基板5的部分时，控制单元控制第二静电吸附装置3122工作，且第一静电吸附装置3121、第三静电吸附装置3123和第四静电吸附装置3124不工作，使得第二静电吸附装置3122能够消除与其所在边缘区域对应位置处的液滴。当需要打印位置3处的基板5的部分时，控制单元控制第三静电吸附装置3123和第四静电吸附装置3124工作，且第一静电吸附装置3121和第二静电吸附装置3122不工作，使得第三静电吸附装置3123和第四静电吸附装置3124能够消除与其所在边缘区域对应位置处的液滴。当需要打印位置4处的基板5时，控制单元控制第一静电吸附装置3121、第二静电吸附装置3122、第三静电吸附装置3123和第四静电吸附装置3124不工作。以此类推，当需要对基板5的其它位置进行打印时，控制单元控制喷墨打印头31的位于打印区域51边缘的静电吸附装置工作，并且控制喷墨打印头31的位于打印区域51内部的静电吸附装置不工作，这样，基板5的打印区域51以外的区域52上就不会有液滴，或者液滴可以被有效地减少，从而可以提高产品品质，并且通过该控制单元，可以使得只有位于打印区域51边缘的静电吸附装置工作，而位于打印区域51内部的静电吸附装置不工作，因此，可以节约成本。
基于同一发明构思，本申请的又一实施例提供了一种显示器生产设备，该显示器生产设备可包括本申请的上述实施例中的任一实施例提供的喷墨打印设备。
由于该显示器生产设备包括上述实施例提供的喷墨打印设备，喷墨打印设备包括上述实施例提供的喷墨打印头，而上述的喷墨打印头通过在至少一个喷嘴所在区域周围的至少一个边缘区域设置液滴去除装置，使用该液滴去除装置消除与该液滴去除装置所在边缘区域对应位置处的液滴，从而可以消除喷墨打印工艺中打印区域以外的区域上 的液滴，进而提高产品的品质。
综上所述，本申请实施例提供了一种喷墨打印头、喷墨打印设备及显示器生产设备，通过在至少一个喷嘴所在区域周围的至少一个边缘区域设置液滴去除装置，使用该液滴去除装置消除与该液滴去除装置所在边缘区域对应位置处的液滴，从而可以消除喷墨打印工艺中打印区域以外的区域上的液滴，进而提高产品的品质。
尽管已描述了本申请的示例性实施例，但本领域内的技术人员基于本文公开的概念，可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括这些示例性实施例以及落入本文公开的概念范围的所有变更和修改。
换言之，本领域的技术人员可以对本文公开的实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型。

Claims (16)

  1. 一种喷墨打印头，包括：
    至少一个喷嘴；以及
    设置在所述至少一个喷嘴所在区域周围的至少一个边缘区域的液滴去除装置，所述液滴去除装置用于消除待打印物上的与该液滴去除装置所在边缘区域对应位置处的液滴。
  2. 根据权利要求1所述的喷墨打印头，其中所述喷墨打印头包括多个喷嘴，所述多个喷嘴所在区域为矩形区域。
  3. 根据权利要求2所述的喷墨打印头，其中所述多个喷嘴所在区域周围的四个边缘区域各设置有一个所述液滴去除装置。
  4. 根据权利要求1所述的喷墨打印头，其中所述液滴去除装置包括真空吸附装置或静电吸附装置。
  5. 一种喷墨打印设备，包括权利要求1～4中任一权项所述的喷墨打印头。
  6. 根据权利要求5所述的喷墨打印设备，其中所述液滴去除装置为真空吸附装置，该喷墨打印设备还包括至少一个真空泵，所述至少一个真空泵与所述真空吸附装置一一对应。
  7. 根据权利要求6所述的喷墨打印设备，其中针对任一所述真空吸附装置，当该真空吸附装置需要消除待打印物上的与该真空吸附装置所在边缘区域对应位置处的液滴时，与其对应的真空泵通过设置在该真空吸附装置上的通气口给该真空吸附装置抽真空。
  8. 根据权利要求7所述的喷墨打印设备，其中该喷墨打印设备还包括控制单元，用于控制每一所述真空泵的开启与关闭，针对任一所述真空吸附装置，当该真空吸附装置需要消除待打印物上的与该真空吸附装置所在边缘区域对应位置处的液滴时，控制与该真空吸附装置对应的真空泵开启。
  9. 根据权利要求8所述的喷墨打印设备，其中所述控制单元控制与喷墨打印头的位于所述待打印物的打印区域边缘的真空吸附装置对应的真空泵开启，并且控制与喷墨打印头的位于所述待打印物的打印区域内部的真空吸附装置对应的真空泵关闭。
  10. 根据权利要求5所述的喷墨打印设备，其中所述液滴去除装 置为真空吸附装置，该喷墨打印设备还包括一个真空泵，所述真空泵与至少一个所述真空吸附装置相连。
  11. 根据权利要求10所述的喷墨打印设备，其中所述真空泵与多个所述真空吸附装置中的每一真空吸附装置相连。
  12. 根据权利要求11所述的喷墨打印设备，其中该喷墨打印设备还包括控制单元和至少一个阀门开关；其中所述阀门开关与所述真空吸附装置一一对应，设置在与其对应的真空吸附装置上；所述控制单元用于控制每一所述阀门开关和真空泵的开启与关闭；其中针对任一所述真空吸附装置，当该真空吸附装置需要消除所述待打印物上与该真空吸附装置所在边缘区域对应位置处的液滴时，所述控制单元控制与该真空吸附装置对应的阀门开关以及所述真空泵开启，使得所述真空泵能够通过该阀门开关给该真空吸附装置抽真空。
  13. 根据权利要求12所述的喷墨打印设备，其中所述控制单元控制与喷墨打印头的位于所述待打印物的打印区域边缘的真空吸附装置对应的阀门开关开启，并且与控制喷墨打印头的位于所述待打印物的打印区域内部的真空吸附装置对应的阀门开关关闭。
  14. 根据权利要求5所述的喷墨打印设备，其中所述液滴去除装置为静电吸附装置，该喷墨打印设备还包括控制单元，针对任一所述静电吸附装置，当该静电吸附装置需要消除待打印物上与该静电吸附装置所在边缘区域对应位置处的液滴时，所述控制单元控制该静电吸附装置和待打印物的电位，使得该静电吸附装置与待打印物之间形成静电场，该静电吸附装置与液滴所带电荷的极性相反。
  15. 根据权利要求14所述的喷墨打印设备，其中所述控制单元控制喷墨打印头的位于待打印物的打印区域边缘的静电吸附装置工作，并且控制喷墨打印头的位于待打印物的打印区域内部的静电吸附装置不工作。
  16. 一种显示器生产设备，包括权利要求5～15任一权项所述的喷墨打印设备。
PCT/CN2016/086414 2016-03-31 2016-06-20 喷墨打印头、喷墨打印设备及显示器生产设备 WO2017166450A1 (zh)

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