CN106079897B - Inkjet-printing device and inkjet printing methods - Google Patents
Inkjet-printing device and inkjet printing methods Download PDFInfo
- Publication number
- CN106079897B CN106079897B CN201610519071.1A CN201610519071A CN106079897B CN 106079897 B CN106079897 B CN 106079897B CN 201610519071 A CN201610519071 A CN 201610519071A CN 106079897 B CN106079897 B CN 106079897B
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- printing
- inkjet
- print area
- isolating device
- air
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Classifications
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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
- 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
-
- 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
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Coating Apparatus (AREA)
Abstract
The invention provides a kind of inkjet-printing device and inkjet printing methods, the inkjet-printing device includes printing body, and printing body has at least one printing head；Isolating device, isolating device are located on print area, air inlet are provided with isolating device, at least one printing head is through isolating device and is arranged in isolating device；Feeder, feeder connect with air inlet, to be supplied to print area；Air extractor, gas outlet is additionally provided with isolating device, air extractor connects with gas outlet, to extract the gas in isolating device.By technical scheme provided by the invention, the problem of ink droplet of the prior art can not be divided uniformly can solve the problem that.
Description
Technical field
The present invention relates to display to produce and process technical field, is beaten in particular to a kind of inkjet-printing device ink-jet
Impression method.
Background technology
Light emitting diode flat-panel monitor based on thin film technique manufacture occurs, and Display Technique marches toward a brand-new rank
Section.For the complexity for further improving stock utilization, reducing production technology, ink-jet printing process prepares the skill of flat-panel monitor
Art is arisen at the historic moment.
Wherein, when producing flat-panel monitor using inkjet technology, many problems also be present needs to solve, one of them
Problem is that film gauge uniformity can not meet to require.Film gauge uniformity directly affects the photoelectric properties and device of device
Life-span.Although carried by way of the physical property of fluid such as viscosity, surface tension that in the prior art can be controlling ink
The film thickness uniformity of high printed material, but above processing mode has some limitations, and is vulnerable to material itself and part
The influence of solvent, its ink droplet printed can not be divided uniformly, and ink droplet easily forms raised or recessed shape.
The content of the invention
The present invention provides a kind of inkjet-printing device and inkjet printing methods, can not to solve ink droplet of the prior art
The problem of uniformly dividing.
According to an aspect of the invention, there is provided a kind of inkjet-printing device, inkjet-printing device includes printing body,
Printing body has at least one printing head；Isolating device, isolating device are located on print area, are set in isolating device
There is air inlet, at least one printing head is through isolating device and is arranged in isolating device；Feeder, feeder is with entering
Gas port connects, to be supplied to print area；Air extractor, gas outlet, air extractor and gas outlet are additionally provided with isolating device
Connection, to extract the gas in isolating device.
Further, air inlet is ring-type air inlet, and ring-type air inlet is looped around the outside of printing head.
Further, printing head is arranged on the center line of ring-type air inlet.
Further, print area is a subpixel area, and subpixel area is formed by substrate and pixel isolation wall,
Isolating device is located on pixel isolation wall.
Further, gas outlet is ring-type gas outlet.
Further, ring-type gas outlet is located at the outside of ring-type air inlet.
Further, feeder includes the first tracheae and air pump, and air pump is connected by the first tracheae with air inlet.
Further, air extractor includes the second tracheae and vavuum pump, and vavuum pump is connected by the second tracheae with gas outlet.
Further, inkjet-printing device also includes adjusting means, and adjusting means is arranged on printing body and isolating device
Between, adjusting means is used to adjust the spacing between printing body and isolating device.
Further, inkjet-printing device also includes heater, is arranged on the lower section of print area.
Further, the height of pixel isolation wall is less than or equal to 5 microns.
Further, print area includes multiple subpixel areas.
According to another aspect of the present invention, there is provided a kind of inkjet printing methods, inkjet printing methods apply above-mentioned offer
Inkjet-printing device, inkjet printing methods include isolating device is located on print area；By printing head by ink droplet
Drop on print area；Supplied by feeder to print area, ink droplet is paved.
Further, before by printing head, ink droplet is dropped on print area, inkjet printing methods also include：It is logical
The air crossed in air extractor extraction print area, to form negative pressure in print area.
Further, the air in print area is extracted by air extractor, it is specific to form negative pressure in print area
Including：Air in print area is extracted by air extractor, makes the pressure in print area in 101.325KPa to -10KPa
In the range of.
Apply the technical scheme of the present invention, increase isolating device and feeder in printing equipment, pass through isolating device
After print area is isolated from the outside, the ink droplet of print area is supplied by feeder, to be carried out to ink drop formation
Adjustment, avoids ink droplet from forming raised or recessed shape in print area, ink droplet is divided in print area.And then it can protect
Card ink droplet dries the uniformity of the film formed afterwards.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of the inkjet-printing device provided according to embodiments of the present invention.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, body is printed；11st, printing head；20th, isolating device；21st, air inlet；22nd, gas outlet；30th, feeder；
31st, the first tracheae；32nd, air pump；40th, air extractor；41st, the second tracheae；42nd, vavuum pump；50th, substrate；60th, pixel isolation wall；
70th, ink droplet.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Do not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for the ease of description, each portion shown in accompanying drawing
The size divided not is to be drawn according to the proportionate relationship of reality.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as authorizing explanation
A part for book.In shown here and discussion all examples, any occurrence should be construed as merely exemplary, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms is represented in following accompanying drawing with letter, therefore, once it is defined in a certain Xiang Yi accompanying drawing, then subsequent attached
It need not be further discussed in figure.
In the description of the invention, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " laterally, vertical,
Vertically, orientation or position relationship indicated by level " and " top, bottom " etc. are normally based on orientation or position shown in the drawings and closed
System, it is for only for ease of the description present invention and simplifies description, in the case where not making opposite explanation, these nouns of locality do not indicate that
There must be specific orientation with the device or element for implying meaning or with specific azimuth configuration and operation, therefore can not manage
Solve as limiting the scope of the invention；The noun of locality " inside and outside " refers to relative to inside and outside each part profile in itself.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
Furthermore, it is necessary to explanation, limits parts, it is only for be easy to using the word such as " first ", " second "
Corresponding parts to be distinguished, do not have Stated otherwise such as, above-mentioned word does not have particular meaning, therefore it is not intended that to this
The limitation of invention protection domain.
As shown in figure 1, the embodiment of the present invention is a kind of inkjet-printing device, inkjet-printing device includes：Printing body 10,
Isolating device 20, feeder 30 and air extractor 40.Wherein, printing on body 10 has at least one printing head 11,
Inkjet printing is carried out by printing head 11.Isolating device 20 is located on print area in printing, is set in isolating device 20
Air inlet 21 and gas outlet 22 are equipped with, feeder 30 connects with air inlet 21, and air extractor 40 connects with gas outlet 22, at least
One printing head 11 is through isolating device 20 and is arranged in isolating device 20.Supplied by feeder 30 to print area
Gas, the gas in isolating device 20 is extracted by air extractor 40.
The inkjet-printing device provided by the present embodiment, increase isolating device 20 and feeder in printing equipment
30, after by isolating device 20, print area is isolated from the outside, the ink droplet of print area is supplied by feeder 30
Gas, to be adjusted to ink drop formation, avoid ink droplet from forming raised or recessed shape in print area, divide ink droplet and beating
Print in region.And then it can ensure that ink droplet dries the uniformity of the film formed afterwards.
In the present embodiment, the air inlet 21 is ring-type air inlet, and ring-type air inlet is looped around the outside of printing head 11.
With by ring-type air inlet to the uniform jet of print area.The structure of air inlet 21 is not limited to ring-type air inlet, also can be by more
The individual annular of air inlet 21 is evenly distributed, as long as can meet to the uniform jet of print area.
Wherein, printing head 11 is arranged on the center line of ring-type air inlet.So air inlet 21 can be made just to fight each other
The top of ink droplet 70 that print shower nozzle 11 drips, is easy to carry out jet to ink droplet 70, and make the uniform stressed of ink droplet 70.
In the present embodiment, the print area is a subpixel area, subpixel area by substrate 50 and pixel every
Formed from wall 60, when being printed to the print area, isolating device 20 is located on pixel isolation wall 60, with to the external world
Isolated, avoid external air flow from having an impact ink droplet 70.Specifically, multiple subpixel areas are may include in print area,
Multiple subpixel areas are surrounded by pixel isolation wall 60.Multiple subpixel areas can be arranged in the matrix form, entered
During row printing, printing head 11 may also set up multiple, multiple printing heads 11 and multiple subpixel areas one-to-one corresponding, isolation dress
20 peripheries for being located at multiple subpixel areas are put, are filled after to the subpixel area printing in the range of this, then by isolation
Put 20 to move in another region, and multiple subpixel areas in the region are printed, can so improve printing speed.
Wherein, gas outlet 22 being also configured as ring-type gas port, ring-type gas outlet can be looped around the outside of printing head 11, or
The outside of ring-type air inlet is arranged on, or between printing head 11 and ring-type air inlet.By ring-type gas outlet to printing
Region is uniformly evacuated.The structure of gas outlet 22 is not limited to ring-type gas outlet, also can be evenly distributed by multiple annulars of gas outlet 22,
As long as it can meet uniformly to extract gas to print area.
In the present embodiment, ring-type gas outlet is arranged on to the outside of ring-type air inlet.Air extractor 40 can so be reduced
In pumping on being influenceed caused by ink droplet 70.
Specifically, feeder 30 includes the first tracheae 31 and air pump 32, and air pump 32 passes through the first tracheae 31 and air inlet
21 connections.Ventilated by air pump 32 into air inlet 21, with the applying power of ink droplet 70 into print area, make ink droplet 70 in pressure
Tend to be smooth under effect, and then the uniformity after the film forming of ink droplet 70 can be ensured.
Specifically, the air extractor 40 includes the second tracheae 41 and vavuum pump 42, vavuum pump 42 by the second tracheae 41 with
Gas outlet 22 connects.Print area is evacuated by vavuum pump 42, so as to form negative pressure in print area.So printing
During ink droplet 70, ink droplet 70 is dropped in by gravity in print area, avoid printing head 11 from applying excessive power to ink droplet 70,
To avoid ink droplet 70 from being splash in lower backwardness.
In the present embodiment, the inkjet-printing device also includes adjusting means, and adjusting means is arranged on the printing He of body 10
Between isolating device 20, adjusting means is used to adjust the spacing between printing body 10 and isolating device 20.To the print zone
When domain is printed, isolating device 20 and the distance of pixel isolation wall 60 are adjusted by adjusting means, are close to isolating device 20
Or set and printed close to pixel isolation wall 60.After the completion of being printed to the print area, it will be isolated by adjusting means
Device 20 lifts, and moves to next print area, after printing head 11 is aligned with the print area, repeats above-mentioned step
Suddenly, printed with completing entirety.By set adjusting means can conveniently regulation printing body 10 and isolating device 20 between
Away from.Wherein, adjusting means can be stretching structure, and the height of isolating device 20 can be also completed by sub-assemblies such as bolt, nuts
Regulation.
Film is formed in order to accelerate ink droplet 70, the inkjet-printing device also includes heater, and heater is set
In the lower section of print area, to be heated to ink droplet 70, accelerate the evaporation rate of ink droplet 70.
In the present embodiment, the height of pixel isolation wall 60 is less than or equal to 5 microns.The excessive height of pixel isolation wall 60
Ink droplet 70 can be made to spend greatly falling speed per hour, cause ink droplet 70 to splash.The height of pixel isolation wall 60 is too low, can not have and contain
The effect of ink droplet 70.
The inkjet-printing device provided using the present embodiment, first passes through adjusting means and isolating device 20 is located at into print zone
On domain, air extractor 40 is opened, the gas in print area is extracted by air extractor 40, and makes to be formed in print area and bears
Pressure.Ink droplet 70 is dropped on print area by printing head 11 again, then open feeder 30, by feeder 30 to
Ink droplet 70 supplies, and to apply external force to ink droplet 70, ink droplet 70 is divided on print area.Now by feeder 30 to beating
Region supply is printed, air extractor 40 is evacuated, and is accelerated speed air flow in print area, can so be increased ink droplet 70 and evaporate
Speed, make the fast filming of ink droplet 70.The device provided by the present embodiment, can ensure that ink droplet 70 is uniformly divided in print area
It is interior, and then ensure the uniformity of film.Also, the evaporation rate of ink droplet 70 can be accelerated by the device, and then life can be improved
Produce efficiency.
Further embodiment of this invention is a kind of inkjet printing methods, what the inkjet printing methods application above-described embodiment provided
Inkjet-printing device.Specifically, the inkjet printing methods include：
Isolating device is located on print area, print area is isolated from the outside out；
Ink droplet is dropped on print area by printing head；
Supplied by feeder to print area, external force is applied to ink droplet by gas, and then pave ink droplet and beating
Print on region.
In order to avoid ink droplet is splash in printing, before by printing head, ink droplet is dropped on print area, the spray
Black Method of printing also includes extracting the air in print area by air extractor, to form negative pressure in print area.So
Ink droplet can be made to drop to print area under gravity, avoid printing head to ink droplet applying power.
Specifically, when extracting the air in print area by air extractor, it is maintained at the pressure in print area
101.325KPa in the range of to -10KPa.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (14)
1. a kind of inkjet-printing device, including printing body (10), the printing body (10) has at least one printing head
(11), it is characterised in that the inkjet-printing device also includes：
Isolating device (20), the isolating device (20) are located on print area, be provided with the isolating device (20) into
Gas port (21), at least one printing head (11) is through the isolating device (20) and is arranged on the isolating device (20)
On；
Feeder (30), the feeder (30) connect with the air inlet (21), to be supplied to the print area；
Air extractor (40), is additionally provided with gas outlet (22) on the isolating device (20), the air extractor (40) with it is described
Gas outlet (22) connects, to extract the gas in the isolating device (20).
2. inkjet-printing device according to claim 1, it is characterised in that the air inlet (21) is ring-type air inlet,
The ring-type air inlet is looped around the outside of the printing head (11).
3. inkjet-printing device according to claim 2, it is characterised in that the printing head (11) is arranged on the ring
On the center line of shape air inlet.
4. inkjet-printing device according to claim 1, it is characterised in that the print area is a subpixel area
Or multiple subpixel areas, the subpixel area pass through substrate (50) and pixel isolation wall (60) formation, the isolating device
(20) it is located on the pixel isolation wall (60).
5. inkjet-printing device according to claim 2, it is characterised in that the gas outlet (22) is ring-type gas outlet.
6. inkjet-printing device according to claim 5, it is characterised in that the ring-type gas outlet is located at the ring-type and entered
The outside of gas port.
7. inkjet-printing device according to any one of claim 1 to 6, it is characterised in that the feeder (30)
Including：
First tracheae (31) and air pump (32), the air pump (32) are connected by first tracheae (31) and the air inlet (21)
It is logical.
8. inkjet-printing device according to any one of claim 1 to 6, it is characterised in that the air extractor (40)
Including：
Second tracheae (41) and vavuum pump (42), the vavuum pump (42) pass through second tracheae (41) and the gas outlet
(22) connect.
9. inkjet-printing device according to claim 1, it is characterised in that the inkjet-printing device also includes：
Adjusting means, the adjusting means are arranged between the printing body (10) and the isolating device (20), the tune
Regulating device is used to adjust the spacing between the printing body (10) and the isolating device (20).
10. inkjet-printing device according to claim 1, it is characterised in that the inkjet-printing device also includes：
Heater, it is arranged on the lower section of the print area.
11. inkjet-printing device according to claim 4, it is characterised in that the height of the pixel isolation wall (60) is small
In or equal to 5 microns.
A kind of 12. inkjet printing methods, it is characterised in that any one of described inkjet printing methods application claim 1 to 11
Described inkjet-printing device, the inkjet printing methods include：
Isolating device is located on print area；
Ink droplet is dropped on the print area by printing head；
Supplied by feeder to print area, ink droplet is paved.
13. inkjet printing methods according to claim 12, it is characterised in that ink droplet is being dropped in by institute by printing head
Before stating on print area, the inkjet printing methods also include：
Air in the print area is extracted by air extractor, to form negative pressure in the print area.
14. inkjet printing methods according to claim 13, it is characterised in that the print zone is extracted by air extractor
Air in domain, specifically included with forming negative pressure in the print area：
Air in the print area is extracted by air extractor, makes the pressure in the print area in 101.325KPa
In the range of to -10KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610519071.1A CN106079897B (en) | 2016-06-28 | 2016-06-28 | Inkjet-printing device and inkjet printing methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610519071.1A CN106079897B (en) | 2016-06-28 | 2016-06-28 | Inkjet-printing device and inkjet printing methods |
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| Publication Number | Publication Date |
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| CN106079897A CN106079897A (en) | 2016-11-09 |
| CN106079897B true CN106079897B (en) | 2017-12-19 |
Family
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| CN201610519071.1A Active CN106079897B (en) | 2016-06-28 | 2016-06-28 | Inkjet-printing device and inkjet printing methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370818B (en) * | 2019-07-26 | 2020-10-13 | 深圳市华星光电半导体显示技术有限公司 | Ink-jet printing device and method |
| CN111063816A (en) * | 2019-12-19 | 2020-04-24 | 深圳市华星光电半导体显示技术有限公司 | Organic light-emitting diode, preparation method and display device |
| CN112497930B (en) * | 2020-11-25 | 2022-01-25 | 合肥维信诺科技有限公司 | Ink jet printing apparatus and method of operating the same |
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| CN1832859A (en) * | 2003-06-13 | 2006-09-13 | 迪马蒂克公司 | Apparatus for depositing droplets |
| CN101531090A (en) * | 2008-03-13 | 2009-09-16 | 株式会社御牧工程 | Printing system, inkjet printer, and printing method |
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| US6491364B2 (en) * | 2001-04-27 | 2002-12-10 | Hewlett-Packard Company | Inkjet printing with air movement system to improve dot shape |
| KR101197153B1 (en) * | 2006-12-21 | 2012-11-09 | 삼성전자주식회사 | Image forming apparatus |
| GB0818109D0 (en) * | 2008-10-03 | 2008-11-05 | Hoggard Peter J | Sublimation printing |
| US9120344B2 (en) * | 2011-08-09 | 2015-09-01 | Kateeva, Inc. | Apparatus and method for control of print gap |
| JP5874251B2 (en) * | 2011-09-07 | 2016-03-02 | セイコーエプソン株式会社 | Liquid ejector |
| JP6635247B2 (en) * | 2014-12-04 | 2020-01-22 | セイコーエプソン株式会社 | Medium drying device, recording device and vapor removal device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1832859A (en) * | 2003-06-13 | 2006-09-13 | 迪马蒂克公司 | Apparatus for depositing droplets |
| CN101531090A (en) * | 2008-03-13 | 2009-09-16 | 株式会社御牧工程 | Printing system, inkjet printer, and printing method |
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