CN1600547A - Method for controlling jet ink of micro body of fluid - Google Patents
Method for controlling jet ink of micro body of fluid Download PDFInfo
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- CN1600547A CN1600547A CN 03160035 CN03160035A CN1600547A CN 1600547 A CN1600547 A CN 1600547A CN 03160035 CN03160035 CN 03160035 CN 03160035 A CN03160035 A CN 03160035A CN 1600547 A CN1600547 A CN 1600547A
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Abstract
A method for controlling ink-jet of microfluid includes adjusting adjusting ink-jet head driving waveform including internal cooling waveform and preheating waveform to reduce satellite spot generated in accompanying main ink point and adjusting ink-jet module by inputting parameters to control action of each nozzle for printing documents in different forms.
Description
Technical field
The present invention relates to a kind of ink discharge control method of microfluid, relate in particular to a kind of ink discharge control method of the microfluid in order to the ink-jet waveform of adjusting the hot bubble type ink jet head.
Background technology
The precision components spray printing that inkjet technology can be applicable to various different materials is shaped, satisfy many electronics industry manufacturing technologies for automation, the microminiaturization of precision components manufacturing, reduce cost, save manufacturing time and reduce requirement and trend such as environmental impact.(Polymer Light Emitter Diode is in manufacturing PLED) for example to be applied to the colored filter (Color Filter) of display panels and organic electric exciting light-emitting diode.Wherein, colored filter is made up of red, green, blue (R, G, B) three look pigment and the black matrix" between pigment that spray is distributed in substrate.Its ink jet process is that ink droplet is painted in the pit (concavities) that is made of black matrix" (Black Matrix) on the filter sheet base plate, the optical filter of different types has different color spray cloth patterns, with respect to other semiconductor fabrication process of making colored filter, equipment and manufacturing cost can significantly reduce.The ink-jet manufacture method of organic electric exciting light-emitting diode, similar above-mentioned color filter making method, unique difference is that organic electric exciting light-emitting diode does not need the structure of black matrix", be to erect dyke (Bank) between its different luminous organic materials with photoresistance, as the flow region of different materials color every.
Yet generally using ink-jet method to make colored filter or the most serious problem of organic electric exciting light-emitting diode is to be accompanied by main ink droplet and the satellite point that comes.The origin cause of formation of satellite point is because during ink droplet jet, and the ink droplet fracture that is caused and forming is trailed satellite point after making winner's ink droplet, and this specific character takes place at random.The conduct of satellite point normally slowly and than main ink droplet has slight different angles skew, and is any distribution of continuous little ink droplet, and this phenomenon causes serious problem such as colour mixture and reduces qualification rate.Under the poorest situation, satellite point can depart from main ink droplet and reach 100 μ m.For the colored filter or the organic electric exciting light-emitting diode of rectangular pattern, satellite point is less to the horizontal direction influence, but can cause the problem of colour mixture for vertical direction.Because satellite point distance between nozzle and printing substrate ink dot and can more be departed from main ink dot when bigger.The method of simple solution is that the distance of ink gun and substrate is transferred more closely, and so satellite point just can be hidden in the main ink dot.But nozzle and printing substrate are too approaching, cause the damage of scraping of substrate easily, and in addition, too approaching distance might not break away from (Break-Off) by ink dot as yet, can cause ink dot to be dragged on substrate, causes the position skew of main ink dot on the contrary, forms colour mixture.
The method of effecting a permanent cure is for reducing the generation probability of satellite point and since ink continue heating after concentration improve, make the ink drop size instability, even ink dries up have influence on the collimation of ink droplet flight around spray orifice, can make that the generation of satellite point is more serious.So can revise the structure of ink gun inner flow passage according to the characteristic (coefficient of viscosity and surface tension etc.) of ink and the interface character of nozzle face material.Or the change ink-jet head driving waveform, and then the situation of regulation and control ink droplet discharge, the chance of occurrence of reduction satellite point.As U.S.'s ink jet head driving method that No. 6331039 patent proposed, be that the driving signal was divided into for two stages, the phase I signal is not done the action of ink-jet in order to the preheating ink, behind one static (rest) signal, second stage signal thereupon produces the ink-jet action again.Can reduce the ink droplet quantity difference that causes because of ambient temperature is different by control phase I signal with static signal.
And for example No. 6357846 patent of the U.S. is described, when the nozzle of ink gun leaves unused a period of time, can increase near extraneous ink viscosity in the nozzle, therefore cause the ink-jet ink-droplet instability, so propose the adjustment that a kind of method is made the ink-jet waveform, be the waveform of after main drive waveforms, adding a fine setting, provide the energy of ink disturbance, make ink can keep comparatively uniform state by the waveform of fine setting.Above two kinds waveform is controlled in input via signal respectively, reduces the puzzlement that the increase of ink droplet viscosity is caused to reach.The method must be controlled main drive waveforms and fine setting waveform, its control method more complicated respectively with two signals.
Because the ink droplet quantity of its ejection of ink-jetting process is subjected to the pressure variation of ink cavity easily, and influence such as ambient temperature variation, and have influence on the uniformity of assembly.So adjustment that also can be by the ink-jet waveform or change its ink gun type of drive suitable ink-jet signal, the characteristics of inkjet of balanced ink are provided.As described in No. 5798772 patent of the U.S., be by modulation (modulation) pulse bandwidth (pulse width), different heat energy is provided, wherein the ratio of heat energy and voltage is kept a constant, but, improve the quality of image by this mode balance ink-jet character.No. 6439687 patent of the U.S. then proposes a kind of ink jet head driving method, change traditional mode that drives the spray orifice block in regular turn, utilize the driving sequential system of property irregular cycle, reduce influence that the pressure variation of ink cavity caused to promote the quality of image.
In addition, use ink-jet method to make assembly and must locate quite accurate position, ink droplet can be sprayed at preposition.Because the optical filter of each pattern or the ink-jetting process of organic electric exciting light-emitting diode assembly, required resolution ratio is all different with the assembly pattern, and each needs quite complicated control system and adjusts mechanism.Cause assembly pattern, all need the design of specific manufacturing equipment or ink gun for each pattern or different resolution.Therefore, how to make ink-jetting process cooperate more effective and simple control methods are finished the manufacturing of various types assembly, promptly become the important goal of ink-jetting process technical development.Ink-jet calibrating installation as No. 5984470 colored filter that patent provided of the U.S., the colored filter of printing when desire and the spacing of ink gun nozzle are not simultaneously, cooperate this device can adjust the angle of nozzle, to meet the inkjet printing of colorized optical filtering chip resolution for the filter sheet base plate of desiring to carry out ink-jet.
Yet above-mentioned ink jet head driving method or waveform adjustment are improved at different particular problems, are easy to produce the problem of attending to one thing and lose sight of another, so need the ink-jet process control method of globality improvement.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of ink discharge control method of microfluid, is applied to the hot bubble type ink jet head, adjusts required ink-jet waveform by suitable method, reduces the chance that produces satellite point.
Drop about the hot bubble type ink jet head forms, its nozzle place begins to be heated to during the ink droplet ejection, having small bubble (microbubbles) produces, the time that this moment as growth begin to be heated to the ink droplet ejection, can make ink produce how small bubble, the formation of numerous micro-bubbles can constitute stronger complete bubbles.Can strengthen the strength of ink droplet jetting nozzle face this moment, so the lifting that droplet ejection characteristics can be by jet velocity and obviously improving, and make the flight departure (deviation) of ink droplet reduce, and then reduce the generation of satellite point.The present invention cuts into more than one waveform with main drive waveforms, increase the time of origin that begins to be heated to the ink droplet ejection by step energy supply, and the suitable more complete bubble of the feasible generation of inside cooling stage (intercooling stage) during heating is provided, increase the strength that ink droplet is pushed out.
For achieving the above object, the invention provides a kind of ink discharge control method of microfluid, its characteristics are, by adjusting ink-jet head driving waveform, improve the stability of ink droplet that ink gun sprays, and its step comprises:
Set one and drive energy range, comprising a lower critical drives on the energy and between the critical driving energy, when the driving energy that nozzle bore of described ink gun drives energy greater than described lower critical, promptly spray ink droplet, when critical driving energy, the nozzle ejection ink droplet of ink gun then begins to break imperfect the driving energy that nozzle bore of described ink gun greater than described;
One main drive waveforms is provided, and the driving energy of described main drive waveforms drives energy and described going up between critical driving energy between described lower critical; And
Add among described main drive waveforms that to drive energy more than one section be time interval 0 or more, described main drive waveforms is cut into more than one waveform cool off to carry out inside.
The ink discharge control method of above-mentioned microfluid, its characteristics be, also comprises a step that adds more than one preheating waveform before described main drive waveforms, and the driving energy of described preheating waveform drives energy less than described lower critical.Before main drive waveforms, add a preheating (preheating stage) waveform, can increase the stability of ink droplet jet.The initial state of each ink droplet before ink-jet that preheating can make ink produce kept unanimity, and makes the ink in the nozzle keep the state of disturbance with compensating jet surface ink evaporation of water situation.Avoid the evaporation of ink to make the situation of nozzle face generation ink solidifies.Therefore the ink discharge control method that cooperates above-mentioned microfluid before main drive waveforms, adds more than one preheating waveform; The driving energy of its preheating waveform drives energy less than lower critical, and ink dot can't be sprayed, and to reach the purpose of preheating ink, reduces the generation of ink solidifies situation.
The ink discharge control method of above-mentioned microfluid, its characteristics be, the driving energy of described preheating waveform be described main drive waveforms the driving energy 1/2 to 1/20.
In addition, another technical problem to be solved by this invention is, the lead time of printing between order that utilization control nozzle is printed and nozzle, the pattern of control desired form assembly.Described in preceding case, when desire is printed the assembly pattern of different resolution, can adjust the angle of nozzle, to meet the inkjet printing of assembly pattern resolution for the substrate of desiring to carry out ink-jet.Ink-jet system can decide the spacing of ink-jet point by the suitable adjustment nozzle anglec of rotation.The ink discharge control method of microfluid of the present invention further provides simple spray printing control model, cooperation can be adjusted the ink gun module of the nozzle anglec of rotation, directly input parameter can calculate required nozzle sequence and time delay to control module, control the ink gun module to determine the running of each nozzle, utilize simple parameters control, can reach the purpose of printing different types assembly pattern.
To achieve these goals, the invention provides a kind of ink discharge control method of microfluid, its characteristics are, be applied to adjust an ink gun module of the nozzle anglec of rotation, a plurality of print parameters of input are calculated the lead time of printing between order that each nozzle prints and described nozzle by a central processing module, and transfer to described control module and control described ink gun module, to determine the running of each nozzle, its step includes:
The transfer printing component parameter is to central processing module;
Calculate the lead time of printing between order that each nozzle prints and described nozzle by described central processing module, to define a nozzle sequence table and time delay table; And
Control described ink gun module with described control module, carry out inkjet printing according to described nozzle sequence table, described time delay table and a drive waveforms.
The ink discharge control method of above-mentioned microfluid, its characteristics are, described print components parameter comprise array-width, preposition nothing print the ink droplet distance of the spacing of ink droplet in interval width (anchor point to first print the distance of color lump), the same printing color lump, adjacent two-combats red ink paste used for seals interblock and print the color lump width one of them.
The ink discharge control method of above-mentioned microfluid, its characteristics are, described nozzle sequence table be earlier with a reference position nozzle as the sequence reference between each nozzle that carries out inkjet printing, the order foundation between each nozzle decides described reference position nozzle and inkjet printing direction.
The ink discharge control method of above-mentioned microfluid, its characteristics are, described time delay table is the lead time of carrying out inkjet printing between the described nozzle of decision, relational expression time delay of wherein carrying out first nozzle of ink-jet and n nozzle is as follows: establishing print speed is v, is (x with reference to the nozzle location coordinate
0, y
0), n point nozzle location coordinate is (x
n, y
n), original nozzle angle (θ
0) be tan
-1((x
n-x
0)/(y
n-y
0)), nozzle rotating angle is θ, the distance of adjacent two nozzles is L
n=((x
n-x
0)
2+ (y
n-y
0)
2)
0.5, then be x the time delay of n nozzle
n/ v=(L
n* sin (θ
0+ θ))/v.The ink gun module can obtain different nozzles by the rotation of ink gun and postpone.
The ink discharge control method of above-mentioned microfluid, its characteristics are, also comprise one and adjust the drive waveforms step, are finished by the following step:
Set one and drive energy range, comprising a lower critical drives on the energy and between the critical driving energy, when the driving energy that nozzle bore of described ink gun drives energy greater than described lower critical, promptly spray ink droplet, when critical driving energy, the nozzle ejection ink droplet of ink gun then begins to break imperfect the driving energy that nozzle bore of described ink gun greater than described;
One main drive waveforms is provided, and the driving energy of described main drive waveforms drives energy and described going up between critical driving energy between described lower critical; And
Driving energy more than one section in the middle adding of described main drive waveforms is time interval more than 0, and described main drive waveforms is cut into more than one waveform to carry out the inside cooling.
The ink discharge control method of above-mentioned microfluid, its characteristics be, also comprises a step that adds more than one preheating waveform before described main drive waveforms, and the driving energy of described preheating waveform drives energy less than described lower critical.
The ink discharge control method of above-mentioned microfluid, its characteristics be, the driving energy of described preheating waveform be described main drive waveforms the driving energy 1/2 to 1/20.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is that drive waveforms of the present invention is adjusted flow chart;
Fig. 2 is the drive waveforms condition enactment flow chart of the embodiment of the invention;
Fig. 3 is a vertical bar formula optical filter schematic diagram;
Fig. 4 is a mosaic pattern optical filter schematic diagram;
Fig. 5 is the schematic diagram of ink-jet apparatus;
Fig. 6 makes colored filter or organic electric exciting light-emitting diode assembly pattern schematic flow sheet for ink ejecting method;
Fig. 7 A to Fig. 7 C is the ink-jet photo as a result of various drive waveforms;
Fig. 8 is the schematic diagram of nozzle selection, nozzle sequence table and time delay table; And
Fig. 9 is that the drive waveforms of each nozzle postpones schematic diagram.
The specific embodiment
The present invention is by adjusting the step of drive waveforms, reduce in the ink jet process, the satellite point of following main ink dot to produce.When ink heats at the nozzle place, having small bubble produces, this moment is in order to increase ink by being heated to the ejection time before, increase an inner cooling stage (intercooling stage), can prolong ink by being heated to the ejection time before, and produce how small bubble, because the formation of many micro-bubbles, can constitute stronger complete bubbles, and the strength of ink droplet jetting nozzle face can be strengthened, therefore the spray characteristic of ink droplet can obviously improve by the lifting of jet velocity, makes the flight departure (deviation) of ink droplet reduce, and then reduces the generation of satellite point.Secondly can add the waveform of a preheating (preheating stage) before main drive waveforms, this step can increase the stability of ink droplet jet.Because can make the initial state of each ink droplet before ink-jet keep unanimity, and the state that makes ink in the nozzle keep to surge is with compensating jet surface ink evaporation of water situation.Because the evaporation of ink can make nozzle face be easy to generate the situation of ink solidifies, added the preheating waveform this moment before main drive waveforms, its size is 1/2 to 1/20 centre of main drive waveforms, can reduce the generation of this situation, wherein the size of preheating waveform and interval can be learnt by experiment.
The ink discharge control method of microfluid of the present invention is the generation that reduces satellite point by the adjustment of drive waveforms, please refer to Fig. 1, and it is that drive waveforms of the present invention is adjusted flow chart.At first,
Step 110, the driving voltage of selection certain value;
Step 120, the decision lower critical drives energy, and promptly the minimum drive waveforms width of decision drives energy greater than lower critical, and ink gun promptly can spray ink dot;
Step 130, critical driving energy in the decision, i.e. the drive waveforms width of decision maximum, greater than last critical driving energy, ink dot that ink gun sprays promptly begins to break imperfect;
Step 140 determines a main drive waveforms, and it drives energy and drives between energy and the last critical driving energy between lower critical;
Step 150, driving energy more than one section in the middle adding of main drive waveforms is time interval more than 0, main drive waveforms is cut into an above waveform cool off to carry out inside;
Step 160 added more than one preheating waveform before main drive waveforms, the driving energy of preheating waveform drives energy less than lower critical.
Wherein, main drive waveforms, to drive energy be the ink drive waveforms that zero time interval and preheating waveform are formed, and can obtain the optimization condition by following step, please refer to Fig. 2, it is the drive waveforms condition enactment flow chart of the embodiment of the invention: at first
Step 210 is made as constant with driving voltage, is 18 volts (V) in embodiments of the present invention;
Step 220 is set minimum drive waveforms width, is to decide by observing the least energy that can spray complete ink droplet, and be (3 microseconds (μ s), 18V) (time, voltage) in embodiments of the present invention;
Step 230 is set maximum drive waveform width, is can produce the energy of dispersing or disorderly spray situation by the observation ink droplet to decide, and be (7 μ s, 18V) in embodiments of the present invention;
Step 240 obtains the mean value of the energy of the energy of minimum drive waveforms width and maximum drive waveform width, and with this as main drive waveforms, be (5 μ s, 18V) in embodiments of the present invention;
Step 250, one section driving of adding energy is 0 the time interval in main drive waveforms, main drive waveforms is cut into an above waveform to carry out the inside cooling, make the drive waveforms Energy distribution of the embodiment of the invention be (2 μ s, 18V), (0.2 μ s, 0V), (2.8 μ s, 18V), 5 μ s altogether;
Step 260, the time with the inner colded time interval adds main drive waveforms again, makes the drive waveforms Energy distribution be (2 μ s, 18V), (0.2 μ s, 0V), (3 μ s, 18V), 5.2 μ s altogether;
Step 270 determines the optimization condition of main drive waveforms, is (2 μ s, 18V) in the drive waveforms Energy distribution of the embodiment of the invention, (0.4 μ s, 0V), (2.8 μ s, 18V), 5.2 μ s altogether;
Step 280 adds the preheating waveform, makes the drive waveforms Energy distribution be (2 μ s, 18V), (0.4 μ s, 0V), (3 μ s, 18V), 5.4 μ s altogether;
At last, step 290 determines optimized drive waveforms, and the drive waveforms Energy distribution is (0.1 μ s, 18V), (0.1 μ s, 0V), (0.1 μ s, 18V), (0.1 μ s, 0V), (2 μ s, 18V), (0.4 μ s, 0V), (3 μ s, 18V), 5.8 μ s altogether.
Please refer to Fig. 7 A to Fig. 7 C, it is the ink-jet photo as a result of various drive waveforms, and shown in Fig. 7 A, original drive waveforms has the ink droplet satellite point to produce, and the ink droplet shape inequality of spray printing.Shown in Fig. 7 B, it is the ink-jet result of inner cooling drive waveforms, can obviously reduce satellite point.Shown in Fig. 7 C, for the preheating waveform adds the inner ink-jet result who cools off drive waveforms, the ink droplet shape of its satellite point minimizing and spray printing is very average, can find can significantly improve print quality by the modulation waveform in addition.
The present invention cooperates the ink gun module that can adjust the nozzle anglec of rotation, can prepare the different types assembly by importing different print components parameters, its print components parameter can comprise: array-width, preposition nothing are printed the ink droplet distance of the spacing of ink droplet in interval width (anchor point is to the distance of first printing color lump), the same printing color lump, adjacent two-combats red ink paste used for seals interblock and are printed the color lump width.Above-mentioned print components parameter all can be set by nozzle sequence table of the present invention and time delay table.Two kinds of main patterns of the assembly pattern that general design is common are vertical bar formula and mosaic, and the present invention can provide a general layout, and only need import the different parameters setting is printable vertical bar formula or mosaic pattern, and need not change hardware design.Please refer to Fig. 3, it is a vertical bar formula assembly pattern schematic diagram, and Fig. 4, and it is a mosaic pattern assembly pattern schematic diagram.As shown in Figure 3 and Figure 4, ink-jet point 511 on the substrate 500 with black array 520 carries out inkjet printing, to form the printing color lump 510 of three kinds of colors of RGB, spraying the seal component parameter comprises: spacing L2, the array-width L3 of ink droplet, printing color lump width L4 and preposition nothing are printed interval width L5 in the ink droplet distance L 1 that adjacent two-combats red ink paste used for seals piece is 510, the same printing color lump 510, and promptly anchor point 530 is printed the distance of color lump 510 to first.
Because the nozzle arrangement of ink gun module itself is not a straight line, the present invention has defined nozzle sequence table (sequence table), is to select the nozzle sequencing tabulation of desiring to carry out the nozzle of ink-jet in the ink gun and being sorted.And time delay table (time delay table), be the timetable of the ink-jet sequential delays of adjacent nozzle, can set out the layout that meets each print parameters by controlling the lead time of printing between order that each nozzle prints and nozzle.
When the spacing of the nozzle of the resolution ratio spacing of assembly pattern and ink gun not simultaneously, then the rotatable angle of ink gun changes the angle of its ink-jet, to print the assembly pattern of different resolution.It is as follows that we obtain its relational expression:
Print speed: v
With reference to the nozzle location coordinate: (x
0, y
0)
N point nozzle location coordinate: (x
n, y
n)
Original nozzle angle: θ
0=tan
-1((x
n-x
0)/(y
n-y
0))
Nozzle rotating angle: θ
The distance of adjacent two nozzles: L
n=((x
n-x
0)
2+ (y
n-y
0)
2)
0.5
The time delay of n nozzle: x
n/ v=(L
n* sin (θ
0+ θ))/v
All the other nozzles can be derived according to following formula with respect to the time delay of first nozzle, and the spacing that its ink droplet a little changes with nozzle rotating angle.
Illustrate with following example.Please refer to Fig. 8, it is the schematic diagram of nozzle selection, nozzle sequence table and time delay table.It is divided between two nozzle regions 601 and 602, is interval 600 be interval, selects the nozzle of 8 nozzles, 610 to the 617 conduct printings of nozzle sequence 605, and after the anglec of rotation, its nozzle sequence becomes 604, comprises nozzle 810 to 817.Its Print direction as shown by arrows, the spray printing order is then shown in nozzle sequence table 609,603 of Print directions as shown by arrows, because adjacent nozzle is not on identical upright position, but rotation has an angle, so after first nozzle 810 has sprayed, need delay one nozzle location difference time D t3 and nozzle rotating angle alternate position spike time Rt1 to spray second nozzle 811 again, just can obtain a vertical straight line.Different nozzles has corresponding different nozzle rotating angle alternate position spike time Rt1～Rt7, with different time delay, shown in the time delay table 629 of Fig. 8, because so nozzle 810 is zero for its time delay of nozzle that first carries out ink-jet, nozzle 811 needs to postpone (Dt3+Rt1), nozzle 812 needs to postpone (2*Dt3+Rt2), and the rest may be inferred can obtain time delay table 629.Fit with nozzle sequence table and time delay table, as shown in Figure 9, it is the drive waveforms delay schematic diagram of each nozzle.The order that nozzle 810～817 is selected according to the nozzle sequence table, and cooperate the time delay table that first nozzle that carries out ink-jet 810 spray to be afterwards delay one time Dt3, to spray second nozzle 811 again, sprayed the nozzle of selecting according to order again.
Hence one can see that, and the present invention can be applicable to the ink-jet manufacture method of different assembly patterns, and as shown in Figure 5, it is the schematic diagram of ink-jet apparatus.Include an ink gun module 11, a motion platform 16, an optical detection module and a control module, ink gun module 11 has at least one spray orifice, and each color has other ink gun (in general including blue (B) three looks of red (R) green (G)), can be in order to substrate 12 is sprayed ink droplets; Can spray ink droplets for ink gun module 11 in order to bearing substrate 12 above the motion platform 16, and have a bracing frame 14, be provided with for ink gun module 11, can be by a CD-ROM drive motor 15 with respect to the 11 corresponding motions of making three directions of X-Y-θ of ink gun module.
The optical detection module includes a regional Charged Coupled Device (area CCD) 13 and one linear charge coupling assembly (1inearCCD) 10, in order to the relative position relation of detecting substrate 12 with the spray orifice of ink gun module 11.Zone Charged Coupled Device 13 is in order to the position of detecting substrate 12.And linear charge coupling assembly 10 is in order to the relativity shift position of the track of the spray orifice of detecting ink gun module 11 and ink droplet spraying.That is to say that regional Charged Coupled Device 13 provides preliminary positioning correcting, utilize linear charge coupling assembly 10 that immediate addressing and precise positioning are provided again.Above-mentioned ink-jet apparatus also is linked to a central processing module (no icon), and to control the start of each modular unit, central processing module also connects user's interface (no icon), imports the print components parameter in order to the user to be provided, and is sent to control module.
The ink discharge control method of the disclosed microfluid of the present invention is to cooperate the said equipment to be finished, as shown in Figure 6, and for ink ejecting method is made colored filter or organic electric exciting light-emitting diode assembly pattern schematic flow sheet.At first,
Step 310 is fixed on glass substrate on the platform, and by user's interface the print components parameter is inputed to central processing module, determines the ink gun parameter simultaneously;
Step 320 calculates the lead time of printing between order that each nozzle prints and nozzle by central processing module, to define nozzle sequence table and time delay table;
Step 330, CD-ROM drive motor will clean the nozzle place that the station group moves to the ink gun module and clean;
Step 340, the print parameters that ink gun parameter, nozzle sequence table and time delay table are formed is interpreted as command format, is sent to control module, reaches the function of glass substrate contraposition by the adjustment of X-Y-theta stage, and this position is made as original position;
Step 350 is done the contraposition of anchor point (alignment mark) with the surface area Charged Coupled Device;
Step 360 is carried out the printing of solid color ink;
Step 370 is carried out the planarization of ink surface;
Then, step 380, dry ink is to form color lump;
Step 390 detects the printing of whether finishing all colours color lump, for promptly not get back to the printing that step 360 is proceeded other color ink, is to be the making of promptly finishing assembly pattern as the result as the result.
In addition, in the action that the printing (step 360) of carrying out the solid color ink can be sprayed (pre-printing) before earlier in advance, detect the correctness of its print position.Step 410 is sprayed in advance in the blank space of glass; Step 420 detects whether obtain correct print position and resolution ratio again; Otherwise resumes step 350 again, up to reaching correct position.
Certainly, the present invention also can have other various embodiments, and under the situation that does not deviate from spirit of the present invention and essence thereof, the structure of device can be improved through further, but these corresponding changes all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1, a kind of ink discharge control method of microfluid is characterized in that, by adjusting ink-jet head driving waveform, improves the stability of ink droplet that described ink gun sprays, and its step comprises:
Set one and drive energy range, comprising a lower critical drives on the energy and between the critical driving energy, when the driving energy that nozzle bore of described ink gun drives energy greater than described lower critical, promptly spray ink droplet, when critical driving energy, the nozzle ejection ink droplet of ink gun then begins to break imperfect the driving energy that nozzle bore of described ink gun greater than described;
One main drive waveforms is provided, and the driving energy of described main drive waveforms drives energy and described going up between critical driving energy between described lower critical; And
Add among described main drive waveforms that to drive energy more than one section be time interval 0 or more, described main drive waveforms is cut into more than one waveform cool off to carry out inside.
2, the ink discharge control method of microfluid according to claim 1 is characterized in that, also comprises a step that adds more than one preheating waveform before described main drive waveforms, and the driving energy of described preheating waveform drives energy less than described lower critical.
3, the ink discharge control method of microfluid according to claim 2 is characterized in that, the driving energy of described preheating waveform be described main drive waveforms the driving energy 1/2 to 1/20.
4, a kind of ink discharge control method of microfluid, it is characterized in that, be applied to adjust an ink gun module of the nozzle anglec of rotation, a plurality of print parameters of input are calculated the lead time of printing between order that each nozzle prints and described nozzle by a central processing module, and transfer to described control module and control described ink gun module, to determine the running of each nozzle, its step includes:
The transfer printing component parameter is to central processing module;
Calculate the lead time of printing between order that each nozzle prints and described nozzle by described central processing module, to define a nozzle sequence table and time delay table; And
Control described ink gun module with described control module, carry out inkjet printing according to described nozzle sequence table, described time delay table and a drive waveforms.
5, the ink discharge control method of microfluid according to claim 4, it is characterized in that, described print components parameter comprise array-width, preposition nothing print the ink droplet distance of the spacing of ink droplet in interval width, the same printing color lump, adjacent two-combats red ink paste used for seals interblock and print the color lump width one of them.
6, the ink discharge control method of microfluid according to claim 4, it is characterized in that, described nozzle sequence table be earlier with a reference position nozzle as the sequence reference between each nozzle that carries out inkjet printing, the order foundation between described nozzle decides described reference position nozzle and inkjet printing direction.
7, the ink discharge control method of microfluid according to claim 4, it is characterized in that, described time delay table is the lead time of carrying out inkjet printing between the described nozzle of decision, relational expression time delay of wherein carrying out first nozzle of ink-jet and n nozzle is as follows: establishing print speed is v, is (x with reference to the nozzle location coordinate
0, y
0), n point nozzle location coordinate is (x
n, y
n), original nozzle angle (θ
0) be tan
-1((x
n-x
0)/(y
n-y
0)), nozzle rotating angle is θ, the distance of adjacent two nozzles is L
n=((x
n-x
0)
2+ (y
n-y
0)
2)
0.5, then be x the time delay of n nozzle
n/ v=(L
n* sin (θ
0+ θ))/v.
8, the ink discharge control method of microfluid according to claim 4 is characterized in that, also comprises one and adjusts the drive waveforms step, is finished by the following step:
Set one and drive energy range, comprising a lower critical drives on the energy and between the critical driving energy, when the driving energy that nozzle bore of described ink gun drives energy greater than described lower critical, promptly spray ink droplet, when critical driving energy, the nozzle ejection ink droplet of ink gun then begins to break imperfect the driving energy that nozzle bore of described ink gun greater than described;
One main drive waveforms is provided, and the driving energy of described main drive waveforms drives energy and described going up between critical driving energy between described lower critical; And
Driving energy more than one section in the middle adding of described main drive waveforms is time interval more than 0, and described main drive waveforms is cut into more than one waveform to carry out the inside cooling.
9, the ink discharge control method of microfluid according to claim 8 is characterized in that, also comprises a step that adds more than one preheating waveform before described main drive waveforms, and the driving energy of described preheating waveform drives energy less than described lower critical.
10, the ink discharge control method of microfluid according to claim 9 is characterized in that, the driving energy of described preheating waveform be described main drive waveforms the driving energy 1/2 to 1/20.
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|---|---|---|---|
| CNB031600352A CN100569518C (en) | 2003-09-23 | 2003-09-23 | The ink discharge control method of microfluid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031600352A CN100569518C (en) | 2003-09-23 | 2003-09-23 | The ink discharge control method of microfluid |
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| Publication Number | Publication Date |
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| CN1600547A true CN1600547A (en) | 2005-03-30 |
| CN100569518C CN100569518C (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031600352A Expired - Fee Related CN100569518C (en) | 2003-09-23 | 2003-09-23 | The ink discharge control method of microfluid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070853A (en) * | 2014-05-26 | 2014-10-01 | 北京石油化工学院 | Carriage unit control method of wide-width digital ink-jet printing machine |
| CN113942308A (en) * | 2020-07-18 | 2022-01-18 | 深圳市汉森软件有限公司 | Method and device for heating spray head by adopting driving waveform, driver and printer |
| CN115476588A (en) * | 2021-05-31 | 2022-12-16 | 森大（深圳）技术有限公司 | Method, device and equipment for optimizing nozzle driving waveform and storage medium |
| CN116872623A (en) * | 2023-08-21 | 2023-10-13 | 新源劲吾(北京)科技有限公司 | Printing equipment for increasing color photovoltaics efficiency and manufacturing method |
-
2003
- 2003-09-23 CN CNB031600352A patent/CN100569518C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070853A (en) * | 2014-05-26 | 2014-10-01 | 北京石油化工学院 | Carriage unit control method of wide-width digital ink-jet printing machine |
| CN104070853B (en) * | 2014-05-26 | 2016-02-03 | 北京石油化工学院 | The word car control method of wide cut code ink jet printing machine |
| CN113942308A (en) * | 2020-07-18 | 2022-01-18 | 深圳市汉森软件有限公司 | Method and device for heating spray head by adopting driving waveform, driver and printer |
| CN115476588A (en) * | 2021-05-31 | 2022-12-16 | 森大（深圳）技术有限公司 | Method, device and equipment for optimizing nozzle driving waveform and storage medium |
| CN115476588B (en) * | 2021-05-31 | 2024-04-23 | 森大（深圳）技术有限公司 | Method, device, equipment and storage medium for optimizing spray head driving waveform |
| CN116872623A (en) * | 2023-08-21 | 2023-10-13 | 新源劲吾(北京)科技有限公司 | Printing equipment for increasing color photovoltaics efficiency and manufacturing method |
| CN116872623B (en) * | 2023-08-21 | 2024-02-02 | 新源劲吾(北京)科技有限公司 | Printing equipment for increasing color photovoltaics efficiency and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100569518C (en) | 2009-12-16 |
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