CN107364233B - Printing head component, printing device and Method of printing - Google Patents
Printing head component, printing device and Method of printing Download PDFInfo
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- CN107364233B CN107364233B CN201710642320.0A CN201710642320A CN107364233B CN 107364233 B CN107364233 B CN 107364233B CN 201710642320 A CN201710642320 A CN 201710642320A CN 107364233 B CN107364233 B CN 107364233B
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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
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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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
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- Ink Jet (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a kind of printing head component, printing device and Method of printings, printing head component includes: ontology, first jet and second nozzle, first jet and second nozzle are located on the bottom wall of ontology, second nozzle is arranged side by side in a first direction with first jet, first jet is configured in display area inkjet printing solution, solution is dissolved in the first solvent by the material of formation film and is made, second nozzle is configured in second the second solvent of print zone inkjet printing, wherein, first direction is the direction vertical with Print direction.Printing head component according to an embodiment of the present invention, printing head component can be used directly to be printed in the display area of substrate, and the solvent strength above the boundary of display area can be effectively improved, so that the concentration of display area middle part top solvent and the concentration comparable of display area boundary top solvent, and then it can prevent solution from, to moving on the outside of display area, improving the uniformity of film forming during drying.
Description
Technical field
The present invention relates to printing device technical fields, more particularly, to a kind of printing head component, printing device and printing
Method.
Background technique
OLED display device has many advantages, such as self-luminous relative to liquid crystal display device, reacts fast, high brightness, high chroma,
It is considered as next-generation display technology and greatly develops.The main structure of OLED display device is oled substrate, wherein passing through picture
Element defines layer and limits pixel unit.The manufacturing process for preparing pixel unit at present mainly has vapor deposition processing procedure and solution process, at present
Processing procedure is deposited, and comparative maturity, solution process include inkjet printing, spin coating and silk-screen printing etc. again.Wherein, inkjet printing skill
Art is since stock utilization is higher, it is in large size to may be implemented, it is considered to be the weight of large scale OLED display device realization volume production
Want mode.
Current inkjet printing methods limit area will to be then printed upon in material dissolution solvent, then by evaporating solvent
Fall, forming material film.It is denseer in the atmosphere that the place closer to display base plate center volatilizes, closer to saturated mode,
Following solution is not easy to do.Closer to fringe region, atmosphere above is thinner, and solvent is more readily volatilized.Since periphery is dry
Dry is fast, and solution can be displaced outwardly during drying, be easy to cause the interior film forming of pixel unit after drying uneven.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of beat
Nozzle component is printed, the printing head component can be improved into film uniformity and the utilization rate of substrate can be improved.
It is another object of the present invention to propose a kind of printing device with above-mentioned printing head component.
Another object of the present invention is to propose a kind of Method of printing.
The printing head component of embodiment according to a first aspect of the present invention, for the display area printing thin film in substrate,
The display area includes the first print zone and the second print zone, and second print zone is looped around the outer of first print zone
Week, the outer edge of second print area extend to the coincident with the display area, the printing head component packet
It includes: ontology；First jet and second nozzle, the first jet and the second nozzle are located on the bottom wall of the ontology, institute
It states second nozzle to be arranged side by side in a first direction with the first jet, the first jet is configured in the viewing area
Domain inkjet printing solution, the solution are dissolved in the first solvent by the material for forming the film and are made, the second nozzle
It is configured in second print zone the second solvent of inkjet printing, wherein the first direction is vertical with Print direction
Direction.
Printing head component according to an embodiment of the present invention by setting first jet and second nozzle, and makes second
Nozzle is arranged side by side in a first direction with first jet, can be used printing head component directly the display area of substrate into
Row printing, and the solvent strength above the boundary of display area can be effectively improved, so that display area middle part top solvent is dense
The concentration comparable of degree and solvent above the boundary of display area, and then can prevent solution during drying to outside display area
Side is mobile, improves the uniformity of film forming.Meanwhile compared with the prior art in printing head component, without being opened in display area
If groove, or solvent print area is reserved in display area periphery, printing process is on the one hand simplified, is on the other hand improved
The utilization rate of substrate, is advantageously implemented the exploitation of narrow frame design and high pixel, and another further aspect can be to avoid solvent on substrate
It is damaged caused by the other components such as lead, improves the reliability of substrate.
According to some embodiments of the present invention, the second nozzle is two, and the first jet is located at two described the
Between two nozzles.As a result, in print procedure, printing head component is after second direction prints, without returning to initial bit
It sets, after directly moving preset distance in a first direction, can continue to print in the unprinted region in display area, effectively
Printing effect is improved, the print time is saved, and printing head component is enabled to adapt to different page order and printing
Mode.
Some specific embodiments according to the present invention, the second nozzle are atomizer, and the second nozzle is constructed
Particle is atomized at by second solvent.As a result, in print procedure, printing head component is finished in second direction printing
It afterwards,, can be in the unprinted region in display area after directly moving preset distance in a first direction without returning to initial position
Inside continue to print, effectively improve printing effect, save the print time, and it is different to enable to printing head component to adapt to
Page order and printing type.
Optionally, the diameter d of the particle meets: 0.5 μm≤d≤10 μm.Thus, it is possible to make the second solvent it is more preferable,
It is quickly covered on the second print zone deposition, the second solvent is made to be covered on the surface of the second print zone.
Further, the printing head component further include: high pressure gas outlet, the high pressure gas outlet are located at described
The side far from the first jet of second nozzle.Thus, it is possible to limit the drippage range of the second solvent particles, make second molten
Agent particle is dropped in the lower section of atomizer, efficiently avoids the second solvent and arbitrarily spreads, thereby may be ensured that the second solvent
Particle can be dropped in the second print zone, efficiently control sedimentary boundaries.
Further, the printing head component further include: at least one vacuum suction mouth, the vacuum suction mouth are set
Between the first jet and the second nozzle, the vacuum suction mouth is caused the suction printing head component and institute
The gas between substrate is stated to balance the pressure between the printing head component and the substrate.
Some specific embodiments according to the present invention, the printing head component further include: the first positioning mechanism, described
One positioning mechanism is configured to align the printing head component to above first print zone；With the second positioning mechanism,
Second positioning mechanism is configured to align the printing head component to above second print zone.
The printing device of embodiment according to a second aspect of the present invention, it is described for the display area printing thin film in substrate
Display area includes the first print zone and the second print zone, and second print zone is looped around the periphery of first print zone,
The outer edge of second print area extends to the coincident with the display area, comprising: according to the present invention above-mentioned
The printing head component of one side embodiment；Solution storage tank, the solution storage tank by the first pipeline with it is described
First jet connection is to provide solution to the first jet；Solvent storage tank, the solvent storage tank by the second pipeline with
The second nozzle connection is to provide solvent to the second nozzle.
According to some embodiments of the present invention, second pipeline is equipped with flowmeter, and the flowmeter is configured to control
Make the volume of the solvent into the second nozzle.
The printing device of embodiment according to a second aspect of the present invention is implemented by the way that above-mentioned first aspect according to the present invention is arranged
The printing head component of example, by the way that the printing head component of above-mentioned first aspect embodiment according to the present invention is arranged, when solvent into
When row evaporation, the concentration of the solvent volatilization above the boundary of display area can be improved for a long time, it is ensured that viewing area when solution evaporates
Concentration comparable in the middle part of the concentration of domain boundary and display area, thus move solution will not outward during drying,
Improve the uniformity and quality of forming film of film forming.
The Method of printing of the printing device of embodiment according to a third aspect of the present invention, for being printed in the display area of substrate
Film, the display area include the first print zone and the second print zone, and second print zone is looped around first printing
The periphery in area, the outer edge of second print area extend to the coincident with the display area, the printing device
For according to the printing device of the above-mentioned second aspect embodiment of the present invention, the Method of printing the following steps are included:
Printing nozzle component is aligned；
When by above printing head component contraposition to first print zone, the first jet is controlled described the
One print zone inkjet printing solution；
When by above printing head component contraposition to second print zone, the first jet is controlled described the
Then two print zone inkjet printing solution control the second nozzle in second print zone the second solvent of inkjet printing；
Evaporate solvent.
Printing head component can be used directly in the aobvious of substrate in the Method of printing of embodiment according to a third aspect of the present invention
Show that region is printed, and the solvent strength above the boundary of display area can be effectively improved, so that top in the middle part of display area
The concentration comparable of solvent above the concentration of solvent and display area boundary, and then can prevent solution during drying to aobvious
Show that areas outside is mobile, improves the uniformity of film forming.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the perspective view of printing head component according to an embodiment of the present invention；
Fig. 2 is the bottom view of printing head component according to an embodiment of the present invention；
Fig. 3 is the partial bottom view of printing head component according to an embodiment of the present invention；
Fig. 4 is the schematic diagram of substrate according to an embodiment of the present invention；
Fig. 5 is the schematic diagram of first jet according to an embodiment of the present invention, second nozzle print area；
Fig. 6 is the schematic diagram of printing device according to an embodiment of the present invention；
Fig. 7 is the printing flow chart of the Method of printing of printing device according to an embodiment of the present invention.
Appended drawing reference:
Printing head component 100,
Ontology 1,
First jet 2, the first sub- nozzle 21,
Second nozzle 3,
High pressure gas outlet 4, vacuum suction mouth 5,
Substrate 101, display area AA, the first print zone BB, the second print zone CC,
Printing device 200,
Solution storage tank 201, the first pipeline 202, solvent storage tank 203, the second pipeline 204, flowmeter 205.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The orientation of instructions such as " thickness ", "upper", "lower", "front", "rear", "left", "right", "top", "bottom" "inner", "outside", " circumferential direction " or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one
A or more this feature.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two with
On.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Printing head component 100 according to an embodiment of the present invention is described below with reference to Fig. 1-Fig. 7.Wherein, printing head group
Part 100 is used for the display area AA printing thin film in substrate 101.Specifically, the display area AA of substrate 101 includes the first printing
Area BB and the second print zone CC, the second print zone CC are looped around the periphery of the first print zone BB, the outside in the second print zone domain CC
Edge extends to the coincident with display area AA.Referring to Fig. 4, the display area AA of substrate 101 can be formed generally as rectangular
Shape shape, the first print zone BB are located at the middle part of display area AA, and the second print zone CC is located at the outside of the first print zone BB.
First print zone BB and the second print zone CC together constitute the display area AA of substrate 101.
Printing head component 100 according to an embodiment of the present invention includes: ontology 1, first jet 2 and second nozzle 3.
Specifically, first jet 2 and second nozzle 3 are located on the bottom wall of ontology 1, and second nozzle 3 and first jet 2 exist
It is arranged side by side on first direction, first jet 2 is configured in display area AA inkjet printing solution, and solution is by formation film
Material is dissolved in the first solvent and is made, and second nozzle 3 is configured in second print zone the second solvent of CC inkjet printing,
In, first direction is the direction vertical with Print direction.
Here, it should be noted that " Print direction " in the application refers to 100 page order of printing head component
Direction, similar to the presentation direction in writing process.For example, when printing, first along the length direction of substrate 101 (for example, in Fig. 6
Front-rear direction) printed, then move printing head component 100 or substrate 101 to certain along the width direction of substrate 101
Pre-determined distance prints the continuation of printing head component 100 on the length direction of the non-print area of substrate 101, at this time
The Print direction of printing head component 100 is the length direction of substrate 101, and first direction is the width direction (example of substrate 101
Such as, the left and right directions in Fig. 6).Correspondingly, it when printing, is first printed along the width direction of substrate 101, then along substrate 101
The mobile printing head component 100 of length direction or substrate 101 to certain predetermined distance, continue printing head component 100
It is printed in the width direction of the non-print area of substrate 101, the Print direction of printing head component 100 is substrate at this time
101 width direction, first direction are the length direction of substrate 101.It is, of course, understood that Print direction may be
The direction etc. parallel with 101 diagonal line of substrate.
For the convenience of description, in the description below the present invention, using Print direction as the length direction of substrate 101, first
Direction be substrate 101 width direction for be illustrated.Meanwhile for the convenience of description, " Print direction " is known as " second party
To ".
For example, referring to Fig. 1, first jet 2 and second nozzle 3 are arranged side by side on the length direction of substrate 101.Second spray
Mouth 3 can be located at the wherein side of the width direction (for example, front-rear direction in Fig. 1) of first jet 2, also can be set
The two sides of the width direction of one nozzle 2.Wherein, first jet 2 may include the multiple first sub- nozzles 21, multiple first son sprays
Mouth 21 can be arranged with rectangular array.Second nozzle 3 can be formed as the spout structure of strip, length of the spout along substrate 101
Direction (i.e. first direction) is spent to extend.
It, can be by first jet 2 to as a result, when printing head component 100 is when the second print zone CC is printed
Two print zone CC carry out inkjet printing solution, then carry out the second solvent of inkjet printing to the second print zone CC by second nozzle 3；
And when printing head component 100 is when the first print zone BB is printed, only by first jet 2 in the first print zone BB ink-jet
Printing solution, so that the quantity of solvent on the second print zone CC is increased, it, can be effective when the first solvent and the evaporation of the second solvent
Ground improves above the second print zone CC the solvent strength (i.e. above the boundary display area AA), so that the first print zone BB is (i.e. aobvious
Show in the middle part of the AA of region) concentration comparable of solvent above the concentration of top solvent and the second print zone CC, and then solution can be prevented
To moving on the outside of the AA of display area during drying, the uniformity of film forming is improved.Meanwhile compared with the prior art in beat
Nozzle component 100 is printed, reserves solvent print area without opening up groove in display area AA, or in the display area periphery AA,
On the one hand printing process is simplified, on the other hand improves the utilization rate of substrate 101, is advantageously implemented narrow frame design and high picture
The exploitation of element, another further aspect can be damaged to avoid solvent to caused by the other components such as lead on substrate 101, and substrate is improved
101 reliability.
It is understood that the second solvent can be same solvent with the first solvent for solvent film material,
It can be two different solvents.Wherein, the first solvent and the second solvent can be the organic solvents such as alcohols, esters.
Printing head component 100 according to an embodiment of the present invention by setting first jet 2 and second nozzle 3, and makes
Second nozzle 3 is arranged side by side in a first direction with first jet 2, and printing head component 100 can be used directly in substrate 101
Display area AA printed, and the solvent strength above the boundary AA of display area can be effectively improved, so that display area
The concentration comparable of the concentration of top solvent and the boundary display area AA top solvent in the middle part of AA, and then solution can be prevented in drying
During to mobile on the outside of the AA of display area, improve the uniformity of film forming.Meanwhile compared with the prior art in printing head
Component 100 reserves solvent print area without opening up groove in display area AA, or in the display area periphery AA, on the one hand
Printing process is simplified, the utilization rate of substrate 101 is on the other hand improved, is advantageously implemented opening for narrow frame design and high pixel
Hair, another further aspect can be damaged to avoid solvent to caused by the other components such as lead on substrate 101, and substrate 101 is improved
Reliability.
According to some embodiments of the present invention, second nozzle 3 is two, first jet 2 be located at two second nozzles 3 it
Between.The two sides of the width direction of first jet 2 are arranged in-Fig. 3 referring to Fig.1, two second nozzles 3.For example, in the example of Fig. 1
In, two second nozzles 3 are separately positioned on front side and the rear side of first jet 2.
For example, when being printed to the back-end from the front end of second direction, can first lead to when the second print zone CC is printed
It crosses first jet 2 and inkjet printing solution is carried out to the second print zone CC, then by the second nozzle 3 of the front side of first jet 2 to the
Two print zone CC carry out the second solvent of inkjet printing；When printing from the rear end forward end of second direction, first can be first passed through
Nozzle 2 carries out inkjet printing solution to the second print zone CC, then is printed by the second nozzle 3 of 2 rear side of first jet to second
Area CC carries out the second solvent of inkjet printing.As a result, in print procedure, printing head component 100 is finished in second direction printing
It afterwards,, can be in the unprinted area display area AA after directly moving preset distance in a first direction without returning to initial position
Continue to print in domain, effectively improve printing effect, save the print time, and enables to printing head component 100 suitable
Answer different page order and printing type.
Some specific embodiments according to the present invention, second nozzle 3 are atomizer, and second nozzle 3 is configured to the
Two solvents are atomized into particle.Thus, it is possible to which the second solvent to be atomized into the particle of smaller size smaller by atomizer, it is convenient for second
Solvent is deposited in the second print zone CC, is conducive to the uniformity for improving upper second solvent of the second print zone CC, and will not influence the
The position of solution on two print zone CC.
In one particular embodiment of the present invention, the second solvent is atomized by the mode that high-pressure atomization can be used in atomizer
At particle.When using high-pressure atomization, the kinetic energy of the second solvent particles itself can make the second solvent particles be deposited on substrate 101
On.
In another specific embodiment of the invention, the mode that ultrasonic atomization can also be used in atomizer is molten by second
Agent is atomized into the second solvent particles.When using ultrasonic atomization, the second solvent particles itself kinetic energy very little needs using gas stream
Dynamic to drive the second solvent particles drippage on the substrate 101, therefore, this atomizer further includes air injection unit.The air injection unit
For spraying gas, the second solvent particles after making gas drive atomization are moved, and are deposited on the second print zone CC of substrate 101
On.
Optionally, the diameter d of particle meets: 0.5 μm≤d≤10 μm.Thus, it is possible to make the second solvent more preferably, faster
Ground is covered on the second print zone CC deposition, and the second solvent is made to be covered on the surface of the second print zone CC.
Specifically, first jet 2 can be pixel printing nozzle.
Further, printing head component 100 further include: high pressure gas outlet 4, high pressure gas outlet 4 are located at the second spray
The side of the separate first jet 2 of mouth 3.That is, high pressure gas outlet 4 can be located at the outside of second nozzle 3.Wherein,
High pressure gas outlet 4 is for spraying high pressure gas, and specifically, high pressure gas outlet 4 can equably spray high pressure gas.It is optional
Ground, high pressure gas outlet 4 can be formed as the strip shape extended in a first direction, but not limited to this.In print procedure,
High pressure gas can form brattice.Thus, it is possible to limit the drippage range of the second solvent particles, it is dropped in the second solvent particles
The lower section of atomizer efficiently avoids the second solvent and arbitrarily spreads, and thereby may be ensured that the second solvent particles can drip
In the second print zone CC, sedimentary boundaries have been efficiently controlled.
It is understood that high pressure gas outlet 4 can also be looped around ontology 1 in other embodiments of the invention
The periphery of bottom wall.As a result, in print procedure, high pressure gas can be formed as the brattice of frame-shaped.Thus, it is possible to further avoid
Second solvent is arbitrarily spread, and be thereby may be ensured that the second solvent particles can be dropped in the second print zone CC, is efficiently controlled
Sedimentary boundaries.
Further, printing head component 100 further include: at least one vacuum suction mouth 5, vacuum suction mouth 5 are located at
Between first jet 2 and second nozzle 3, vacuum suction mouth 5 is caused between suction printing head component 100 and substrate 101
Gas is to balance the pressure between printing head component 100 and substrate 101.Wherein, vacuum suction mouth 5 is one or more.
For example, in the example of fig. 3, vacuum suction mouth 5 is multiple, and multiple vacuum suction mouths 5 are in first jet 2 and second nozzle 3
Between be spaced setting.Since high pressure gas is ejected in high pressure gas outlet 4 on the substrate 101, the gas of 101 top of substrate is improved
Therefore pressure is aspirated by the gas of the top of 5 pairs of substrates of vacuum suction mouth 101, can effectively 101 top of balancing substrate
Air pressure.
Some specific embodiments according to the present invention, printing head component 100 further include: the first positioning mechanism and second pair
Position mechanism.First positioning mechanism is configured to align printing head component 100 to above the first print zone BB, the second aligning machine
Structure is configured to align printing head component 100 to above the second print zone CC.First positioning mechanism and the second positioning mechanism
It can be set on ontology 1.Wherein, the structure and working principle of the first positioning mechanism and the second positioning mechanism are by this field
Known to technical staff, it be not described in detail herein.As a result, convenient for according to the specific location of printing head component 100 control the
One nozzle 2 and second nozzle 3 work, and the uniformity of printing precision and film forming are improved, to improve quality of forming film.
Optionally, the first positioning mechanism and the second positioning mechanism can be the same positioning mechanism, but not limited to this.
Solution is printed upon display area AA by first jet 2 by printing head component 100 according to an embodiment of the present invention
It is interior, such as in the AA limited area of pixel defining layer, be atomized the second solvent to form 0.5um-10um's by second nozzle 3
Particle, and equably deposition is printed upon the second print zone CC, forms brattice, control by 4 injection high pressure gas of high pressure gas outlet
The sedimentary boundaries for making the second solvent, by 5 control base board of vacuum suction mouth, 101 top air pressure balance, when solvent is evaporated,
The concentration of the solvent volatilization above the boundary AA of display area can be improved for a long time, it is ensured that the display area boundary AA when solution evaporates
Concentration comparable in the middle part of the concentration and display area AA at place improves so that solution be made not move outward during drying
The uniformity and quality of forming film of film forming.
The printing device 200 of embodiment according to a second aspect of the present invention is described below, in the display area of substrate 101
AA printing thin film, display area AA include the first print zone BB and the second print zone CC, and the second print zone CC is looped around first dozen
The periphery of area BB is printed, the outer edge in the second print zone domain CC extends to the coincident with display area AA.
Referring to Fig. 6, the printing device 200 of embodiment includes: according to the present invention above-mentioned first according to a second aspect of the present invention
Printing head component 100, solution storage tank 201 and the solvent storage tank 203 of aspect embodiment.
Solution storage tank 201 is connected to first jet 2 by the first pipeline 202 to provide solution, solvent to first jet 2
Storage tank 203 is connected to second nozzle 3 by the second pipeline 204 to provide solvent to second nozzle 3.
According to some embodiments of the present invention, the second pipeline 204 is equipped with flowmeter 205, and flowmeter 205 is configured to control
System enters the volume of the solvent of second nozzle 3.Specifically, the film thickness (H) of the volume (V) of the second solvent print area as needed
It is calculated with area (S), calculation formula (V=K*H*S), K is to mend coefficient partially.When needing to print, the second print zone is first determined
After the area S of the CC and thickness H of film, the total amount of the second solvent needed for calculating.Thus, it is possible to accurate by flowmeter 205
Ground control enters the volume of the second solvent of second nozzle 3, so as to accurately control solvent above the second print zone CC
Concentration, it is ensured that the concentration of display area AA boundary and the middle part display area AA concentration comparable when solvent evaporates, to make solution
It will not be moved outward during drying, improve the uniformity and quality of forming film of film forming.
The printing device 200 of embodiment according to a second aspect of the present invention, by the way that above-mentioned first aspect according to the present invention is arranged
The printing head component 100 of embodiment can improve molten above the boundary AA of display area for a long time when solvent is evaporated
The concentration of agent volatilization, it is ensured that the concentration of display area AA boundary and the middle part display area AA concentration comparable when solution evaporates, from
And move solution will not outward during drying, improve the uniformity and quality of forming film of film forming.
The Method of printing of the printing device 200 of embodiment according to a third aspect of the present invention, in the viewing area of substrate 101
Domain AA printing thin film, display area AA include the first print zone BB and the second print zone CC, and the second print zone CC is looped around first
The outer edge of the periphery of print zone BB, the second print zone domain CC extends to the coincident with display area AA, printing device 200
For according to the printing device 200 of the above-mentioned second aspect embodiment of the present invention, Method of printing the following steps are included:
Printing nozzle component 100 is aligned；
When by above the contraposition to the first print zone BB of printing head component 100, first jet 2 is controlled in the first print zone
BB inkjet printing solution；
When by above the contraposition to the second print zone CC of printing head component 100, first jet 2 is controlled in the second print zone CC
Then inkjet printing solution controls second nozzle 3 in second print zone the second solvent of CC inkjet printing；
Evaporate solvent.
After display area AA printing solution and the second solvent, evaporating the first solvent and the second solvent can shown
Region AA forms film.Specifically, it can evaporate the first print zone BB's by vacuum decompression drying process and baking process
The first solvent and the second solvent of first solvent and the second print zone CC.
Printing head component 100 can be used directly in substrate in the Method of printing of embodiment according to a third aspect of the present invention
101 display area AA is printed, and can effectively improve the solvent strength above the boundary AA of display area, so that display
The concentration comparable of the concentration of top solvent and the boundary display area AA top solvent in the middle part of the AA of region, and then can prevent solution from existing
To movement on the outside of the AA of display area in dry process, the uniformity of film forming is improved.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of printing head component, for the display area printing thin film in substrate, the display area includes the first printing
Area and the second print zone, second print zone are looped around the periphery of first print zone, which is characterized in that the printing spray
Head assembly includes:
Ontology；
First jet and second nozzle, the first jet and the second nozzle are located on the bottom wall of the ontology, and described
Two nozzles are arranged side by side in a first direction with the first jet, and the first jet is configured to spray in the display area
Black printing solution, the solution are dissolved in the first solvent by the material for forming the film and are made, and the second nozzle is by structure
It causes in second print zone the second solvent of inkjet printing, wherein the first direction is the direction vertical with Print direction.
2. printing head component according to claim 1, which is characterized in that the second nozzle be two, described first
Nozzle is located between two second nozzles.
3. printing head component according to claim 1 or 2, which is characterized in that the second nozzle is atomizer, institute
Second nozzle is stated to be configured to second solvent being atomized into particle.
4. printing head component according to claim 3, which is characterized in that the diameter d of the particle meets: 0.5 μm≤d
≤10μm。
5. printing head component according to claim 3, which is characterized in that further comprise: high pressure gas outlet, it is described
High pressure gas outlet is located at the side far from the first jet of the second nozzle.
6. printing head component according to claim 5, which is characterized in that further comprise: at least one vacuum suction
Mouthful, the vacuum suction mouth is located between the first jet and the second nozzle, and the vacuum suction mouth is caused suction
Gas between the printing head component and the substrate is to balance the pressure between the printing head component and the substrate
Power.
7. printing head component according to claim 1, for the display area printing thin film in substrate, the viewing area
Domain includes the first print zone and the second print zone, and second print zone is looped around the periphery of first print zone, feature
It is, further includes:
First positioning mechanism, first positioning mechanism are configured to align the printing head component to first printing
Above area；With
Second positioning mechanism, second positioning mechanism are configured to align the printing head component to second printing
Above area.
8. a kind of printing device characterized by comprising
Printing head component described in any one of -7 according to claim 1；
Solution storage tank, the solution storage tank are connected to by the first pipeline with the first jet to mention to the first jet
For solution；
Solvent storage tank, the solvent storage tank are connected to by the second pipeline with the second nozzle to mention to the second nozzle
For solvent.
9. printing device according to claim 8, which is characterized in that second pipeline is equipped with flowmeter, the stream
Meter is configured to the volume that control enters the solvent of the second nozzle.
10. a kind of Method of printing of printing device, for the display area printing thin film in substrate, the display area includes the
One print zone and the second print zone, second print zone are looped around the periphery of first print zone, which is characterized in that described
Printing device be the printing device according to claim 8 or 9, the Method of printing the following steps are included:
Printing nozzle component is aligned；
When by above printing head component contraposition to first print zone, the first jet is controlled at described first dozen
Print area's inkjet printing solution；
When by above printing head component contraposition to second print zone, the first jet is controlled at described second dozen
Area's inkjet printing solution is printed, then controls the second nozzle in second print zone the second solvent of inkjet printing；
Evaporate solvent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710642320.0A CN107364233B (en) | 2017-07-31 | 2017-07-31 | Printing head component, printing device and Method of printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710642320.0A CN107364233B (en) | 2017-07-31 | 2017-07-31 | Printing head component, printing device and Method of printing |
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| Publication Number | Publication Date |
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| CN107364233A CN107364233A (en) | 2017-11-21 |
| CN107364233B true CN107364233B (en) | 2019-07-12 |
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