CN110421988A - Ink discharge control method and system, ink jet printing device - Google Patents
Ink discharge control method and system, ink jet printing device Download PDFInfo
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- CN110421988A CN110421988A CN201810788750.8A CN201810788750A CN110421988A CN 110421988 A CN110421988 A CN 110421988A CN 201810788750 A CN201810788750 A CN 201810788750A CN 110421988 A CN110421988 A CN 110421988A
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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
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
Abstract
The present invention relates to a kind of ink discharge control methods and system, ink jet printing device, computer equipment, computer storage medium.Above-mentioned ink discharge control method includes: to calculate printing number of strokes needed for ink jet printing device completes front substrate print job, second ink injection rule of first ink injection rule and second ink jet system of the first ink jet system in print procedure in print procedure is set according to the printing number of strokes；Control the first ink that the first ink jet system sprays the first concentration according to the first ink injection rule to front substrate, and the second ink that the second ink jet system sprays the second concentration according to the second ink injection rule to front substrate is controlled simultaneously, remain unchanged the first ink jet system and the second ink jet system the ink solute amount in the ink that each printing stroke is sprayed, ink solvent amount reduces with the increase of printing number of strokes, it is ensured that the uniformity of printing-filming on front substrate.
Description
Technical field
The present invention relates to technical field of information processing, more particularly to a kind of ink discharge control method and system, inkjet printing
Equipment, computer equipment, computer storage medium.
Background technique
It is shown relative to traditional LC D, OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) tool
There are the advantages such as high brightness, wide viewing angle, high contrast, low energy consumption, is increasingly becoming the mainstream of a new generation's display.As consumer is to soft
Property, large scale, the demand of inexpensive display screen, the advantage that printing OLED is shown is more and more significant.
Currently, mainly passing through inkjet printing technology is deposited on corresponding pixel for the functional layer ink of OLED for typographical display
In hole, the solvent in ink is then removed by dry technology and is formed a film.Wherein, the quality of forming film of marking ink directly affects
Performance, show uniformity, service life of printing device etc., improving into film uniformity is the key factor for realizing typographical display mass production
One of.Vacuum drying side after the completion of current research is concentrated mainly on the design treatment of printing preceding pixel, substrate etc. and prints
Optimization of method, equipment etc. come improve film in pixel at film uniformity.But with the increasing of typographical display screen dimensions
Greatly, film may occur in print procedure and deposit non-uniform phenomenon.Refering to what is shown in Fig. 1, being printed in large scale display screen
Cheng Zhong, the size of print head are much smaller than substrate size to be printed, and printer needs time long-range printing that could complete large-size substrate
Whole face printing, the whole printing process time is longer.In this way, first being beaten on substrate before being transferred to vacuum dryer and being dried
Print pixel internal solvent volatilization degree be much larger than rear print pixel, and in the pixel first printed ink dried solvent atmosphere
The drying solvent atmosphere of ink in the pixel printed after being much smaller than prints the time of successive ink dried and the solvent atmosphere of drying
Cause first print pixel solvent degree of volatility be much larger than after ink in the pixel that prints, as shown in Fig. 2, above-mentioned degree of volatility
Between difference bring the film morphology difference after ink dried in pixel, be easily reduced typographical display device lights performance.
Summary of the invention
Based on this, it is necessary to be easily reduced the technical issues of typographical display device lights performance for traditional scheme, provide one
Kind ink discharge control method and system, ink jet printing device, computer equipment, computer storage medium.
A kind of ink discharge control method, comprising:
Printing number of strokes needed for ink jet printing device completes front substrate print job is calculated, according to the printing stroke
First ink injection rule and second ink jet system of number the first ink jet system of setting in print procedure are being beaten
The second ink injection rule during print；Wherein, the first ink injection rule is the ink volume sprayed each
Print stroke increase and increased rule identical or with printing number of strokes；The second ink injection rule is the ink of injection
The water volume rule reduced with the increase of printing number of strokes；
It controls the first ink jet system and sprays the first concentration to front substrate according to the first ink injection rule
First ink, and control the second ink jet system simultaneously and spray second to front substrate according to the second ink injection rule
Second ink of concentration, the ink for spraying the first ink jet system and the second ink jet system in each printing stroke
Middle ink solute amount remains unchanged, and ink solvent amount reduces with the increase of printing number of strokes；Wherein first concentration is greater than
Second concentration.
Above-mentioned ink discharge control method can calculate print line needed for ink jet printing device completes front substrate print job
Number of passes sets high concentration ink (the first ink) corresponding first ink injection rule, low concentration according to above-mentioned printing number of strokes
The corresponding second ink injection rule of ink (the second ink), to control the first ink jet system according to the first ink
Injection rule is sprayed according to the second ink injection rule to front substrate to front substrate jet ink, the second ink jet system
Ink makes the first ink jet system and the second ink jet system the ink solute in the ink that each printing stroke is sprayed
Amount remains unchanged, and ink solvent amount reduces with the increase of printing number of strokes；First print area and rear printing in this way on substrate
There are solvent volume gradient between region, above-mentioned solvent volume gradient can compensate in print procedure the ink volatilization time difference and
The inhomogeneities of ink dried degree caused by vapour concentration difference can be to avoid to ensure that the uniformity of printing-filming
The appearance for the situations such as the display color difference of typographical display device or display are uneven, typographical display device can be improved lights performance.
The first ink injection rule is included in n-th of printing stroke in one of the embodiments, Xiang Dangqian base
Plate sprays the ink that volume is V1 (n)；Wherein V1 (n) be constant function or be n incremental linear function；
The second ink injection rule is included in n-th of printing stroke, is V2's (n) to front substrate injection volume
Ink；Wherein V2 (n) is the linear function that successively decreases of n.
The present embodiment can carry out orderly ink-jet to the first ink jet system according to the first ink injection rule and control,
Orderly ink-jet is carried out to the second ink jet system according to the second ink injection rule to control.
As one embodiment, the value range of first concentration is 10mg/mL to 30mg/mL, second concentration
Value range be 0mg/mL to 10mg/mL.
The present embodiment is respectively defined the concentration range of the first concentration and the second concentration, to guarantee to use the first ink
The printing effect of corresponding substrate printing is carried out with the second ink.
As one embodiment, the value range of second concentration is 1mg/mL to 10mg/mL；
In the first ink injection rule, the ink volume V1 (n) that n-th of printing stroke is sprayed to front substrate is n
Incremental linear function.
In the present embodiment, the volume that the first ink jet system sprays the first ink increases with the increase of printing number of strokes
Add, can compensate the second ink jet system spray the second ink volume with printing number of strokes increase and reduce lost it is molten
Quality thereby may be ensured that beating for substrate to guarantee that it is consistent that each printing stroke sprays solute amount contained by ink to substrate
Print effect.
As one embodiment, second concentration is 0；
In first ink injection rule, n-th of printing stroke to the ink volume V1 (n) that front substrate sprays be normal
Number function.
The present embodiment only needs the solvent printing voltage in the second ink jet system of control that can realize to the spray of the second ink
The adjusting of each printing stroke institute ejection of solvent volume of ink system, reduces the complexity of ink-jet control, simplifies corresponding
Control process.
The ink solvent of first ink and the second ink is the first solvent and second in one of the embodiments,
The mixed mixed solvent of solvent, wherein the boiling point of the first solvent need to be greater than 200 DEG C, the boiling point of the second solvent is less than described first
The boiling point of solvent.
The present embodiment is using the mixed solvent of high low boiling point mixing as the first ink jet system and the second ink jet
Ink solvent in system facilitates the control in print procedure to ink degree of volatility, advantageously ensures that printing-filming
Uniformity.
A kind of ink-jet control system, comprising:
Computing module, for calculating printing number of strokes needed for ink jet printing device completes front substrate print job, root
First ink injection rule and second ink of the first ink jet system in print procedure are set according to the printing number of strokes
Second ink injection rule of the water ink-jet system in print procedure；Wherein, the first ink injection rule is sprayed
The ink volume increase and increased rule identical or with printing number of strokes in each printing stroke；Second ink injection
The rule rule reduced with the increase of printing number of strokes for the ink volume of injection；
Control module is sprayed according to the first ink injection rule to front substrate for controlling the first ink jet system
The first ink of the first concentration is penetrated, and controls the second ink jet system simultaneously according to the second ink injection rule to current
Substrate sprays the second ink of the second concentration, makes the first ink jet system and the second ink jet system in each printing stroke
Ink solute amount remains unchanged in the ink sprayed, and ink solvent amount reduces with the increase of printing number of strokes；It is wherein described
First concentration is greater than the second concentration.
Above-mentioned ink-jet control system can calculate print line needed for ink jet printing device completes front substrate print job
Number of passes sets the corresponding first ink injection rule of high concentration ink according to above-mentioned printing number of strokes, and low concentration ink is corresponding
Second ink injection rule is sprayed according to the first ink injection rule to front substrate to control the first ink jet system
Ink is penetrated, the second ink jet system, to front substrate jet ink, makes the first ink jet according to the second ink injection rule
System and the second ink jet system the ink solute amount in the ink that each printing stroke is sprayed remain unchanged, ink solvent
Amount reduces with the increase of printing number of strokes；There are solvent volumes between first print area and rear print area in this way on substrate
Gradient, above-mentioned solvent volume gradient can compensate in print procedure ink caused by ink volatilization time difference and vapour concentration difference
The inhomogeneities of water degree of drying, thus ensure that the uniformity of printing-filming, it can be to avoid the display color difference of typographical display device
Or showing the appearance of the situations such as uneven, typographical display device can be improved lights performance.
A kind of ink jet printing device, including the first ink jet system, the second ink jet system, print carriage and printing
Mobile system；
The first ink jet system and the second ink jet system are set in parallel to each other on the print carriage；
The printing mobile system controls the first ink jet system and the second ink jet system in print procedure
System movement.
Above-mentioned ink jet printing device, including the first ink jet system and the second ink jet system, above-mentioned first ink
Ink-jet system and the second ink jet system can be respectively according to respective ink injection rule independently of each other to front substrates
Jet ink, convenient for spraying in controlling each printing stroke to the ink volume of substrate, so that falling in molten in first print area
Agent total volume is greater than the total solvent volume fallen in rear print area, can use solvent body existing for successive print area in this way
Product gradient compensation print procedure in ink volatilization the time difference and vapour concentration difference caused by ink dried degree it is uneven
Property, to guarantee the uniformity of substrate printing-filming.
In one embodiment, the first ink jet system and the second ink jet system include that ink storage is single
Member, printing head and the ink-jet control unit for controlling printing head ink ejecting state.
The first ink jet system and the second ink jet system can pass through corresponding ink-jet control respectively in the present embodiment
Injection and circulation fluid infusion of unit control ink processed etc., can also carry out the regulation of the parameters such as speed, the volume of jet ink, with
Guarantee the accuracy of relevant control or regulation.
A kind of computer equipment, including memory, processor and be stored on the memory and can be in the processing
The computer program run on device, the processor realize the spray that any of the above-described embodiment provides when executing the computer program
Black control method.
A kind of computer storage medium, is stored thereon with computer program, which is characterized in that the program is executed by processor
The ink discharge control method that any of the above-described embodiment of Shi Shixian provides.
Ink discharge control method according to the present invention, the present invention also provides a kind of computer equipment and computer storage medium,
For realizing above-mentioned ink discharge control method by program.Above-mentioned computer equipment and computer storage medium guarantee printing-filming
Uniformity avoids typographical display device from showing the appearance of the situations such as uneven, so that guarantee typographical display device lights performance.
Detailed description of the invention
Fig. 1 is the inkjet printing schematic diagram of traditional scheme；
Fig. 2 is the ink volume schematic diagram of each print area in traditional scheme；
Fig. 3 is the ink discharge control method flow chart of one embodiment；
Fig. 4 is the ink volume schematic diagram of each print area of one embodiment；
Fig. 5 is the ink volume schematic diagram after the completion of the printing of one embodiment；
Fig. 6 is the ink-jet control system structural schematic diagram of one embodiment；
Fig. 7 is the computer system module map of one embodiment；
Fig. 8 is the ink jet printing device bottom view of one embodiment.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, with reference to the accompanying drawings and embodiments, to this
Invention is described in further detail.It should be appreciated that the specific embodiments described herein are only used to explain the present invention,
And the scope of protection of the present invention is not limited.
It should be noted that term involved in the embodiment of the present invention " first second third " be only distinguish it is similar
Object does not represent the particular sorted for object, it is possible to understand that ground, " first second third " can be mutual in the case where permission
Change specific sequence or precedence.It should be understood that the object that " first second third " is distinguished in the appropriate case can be mutual
It changes, so that the embodiment of the present invention described herein can be real with the sequence other than those of illustrating or describing herein
It applies.
The term " includes " of the embodiment of the present invention and " having " and their any deformations, it is intended that cover non-exclusive
Include.Such as contain series of steps or module process, method, system, product or equipment be not limited to it is listed
Step or module, but optionally further comprising the step of not listing or module, or optionally further comprising for these processes, side
Method, product or equipment intrinsic other steps or module.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the application.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Refering to what is shown in Fig. 3, Fig. 3 is the ink discharge control method flow chart of one embodiment, comprising:
S10 calculates printing stroke (pass) number needed for ink jet printing device completes front substrate print job, according to institute
It states printing number of strokes and sets first ink injection rule and second ink spray of the first ink jet system in print procedure
Second ink injection rule of the ink system in print procedure；Wherein, the first ink injection rule is the ink that is sprayed
The volume increase and increased rule identical or with printing number of strokes in each printing stroke；The second ink injection rule
For the ink volume of the injection rule reduced with the increase of printing number of strokes；
Above-mentioned first ink jet system and the second ink jet system are two mutually independent ink-jet systems
(inkstick), two inkstick isochronous printing on substrate when printing prepares display screen.Above-mentioned first ink jet system
System and the second ink jet system can be arranged in parallel on the print carriage of printing device, be moved by the printing of ink jet printing device
Dynamic system controls above-mentioned first ink jet system and the second ink jet moves above substrate simultaneously, with to currently printing
Substrate jet ink.
It is dense to front substrate injection first according to the first ink injection rule to control the first ink jet system by S20
First ink of degree, and control the second ink jet system simultaneously and sprayed according to the second ink injection rule to front substrate
Second ink of the second concentration sprays the first ink jet system and the second ink jet system in each printing stroke
Ink solute amount remains unchanged in ink, and ink solvent amount reduces with the increase of printing number of strokes；Wherein first concentration
Greater than the second concentration.
First ink jet system the sprayed high concentration ink (the first ink) of each printing stroke ink volume not
Become or increase with the increase for printing number of strokes, to guarantee that each printing stroke sprays solute contained by the ink to substrate
Amount, the second ink jet system spray the ink volume of low concentration ink (the second ink) with printing stroke in each printing stroke
Number increases and reduces, and the ink total volume for spraying each printing stroke to substrate reduces with the increase of printing number of strokes, this
The ink solute amount of successive print area is consistent on sample substrate, and the quantity of solvent of first print area is greater than the solvent of rear print area
Amount, successively print area is there are solvent volume gradient, when above-mentioned solvent volume gradient can compensate ink volatilization in print procedure
Between difference and vapour concentration difference caused by ink dried degree inhomogeneities.
Ink discharge control method provided in this embodiment, can be according to the size of printing substrate, Pixel Dimensions, stamping ink water body
Long-pending and print head can use the number etc. of nozzle, calculate ink jet printing device before printing and complete needed for front substrate print job
Printing number of strokes, high concentration ink corresponding first ink injection rule, low concentration ink are set according to above-mentioned printing number of strokes
Water corresponding second ink injection rule, to control the first ink jet system according to the first ink injection rule to working as
Preceding substrate jet ink, the second ink jet system, to front substrate jet ink, make first according to the second ink injection rule
Ink jet system and the second ink jet system the ink solute amount in the ink that each printing stroke is sprayed remain unchanged,
Ink solvent amount reduces with the increase of printing number of strokes；Exist between first print area and rear print area in this way on substrate
Solvent volume gradient, above-mentioned solvent volume gradient can compensate ink volatilization time difference and vapour concentration difference in print procedure
Caused by the inhomogeneities of ink dried degree can be to avoid typographical display device to ensure that the uniformity of printing-filming
It shows color difference or shows the appearance of the situations such as uneven, typographical display device can be improved lights performance.
In one embodiment, the first ink injection rule is included in n-th of printing stroke, sprays to front substrate
The ink that beam product is V1 (n)；Wherein V1 (n) be constant function or be n incremental linear function；
The second ink injection rule is included in n-th of printing stroke, is V2's (n) to front substrate injection volume
Ink；Wherein V2 (n) is the linear function that successively decreases of n.
Above-mentioned incremental linear function may include linear function or direct proportion function of monotonic increase etc..Above-mentioned lapse line
Property function may include the functions such as the linear function of monotone decreasing, V2 (n) be n the linear function that successively decreases, can make second ink
The ink volume that the ink volume that water ink-jet system first sprays is sprayed after being greater than advantageously forms successive print zone on glass substrate
The solvent volume gradient in domain.
Specifically, the present embodiment can be by adjusting separately the first ink jet system and the second ink in each printing stroke
The voltage of water ink-jet system realizes the control to corresponding ink injection volume.It can specifically be gone when n-th of printing stroke carries out
The ink for the respective volume sprayed in journey is (if the volume of the first ink jet system institute jet ink is V1 (n), the spray of the second ink
The volume of ink system institute jet ink is V2 (n)), the first ink jet system and the second ink jet system be not in backhaul
Jet ink, but its voltage is adjusted, so that in next ((n+1)th) print line of each ink jet system
Journey can spray the ink of respective volume to front substrate.
The present embodiment can carry out orderly ink-jet to the first ink jet system according to the first ink injection rule and control,
Orderly ink-jet is carried out to the second ink jet system according to the second ink injection rule to control.
As one embodiment, the value range of first concentration is 10mg/mL (every milliliter of milligram) to 30mg/mL,
The value range of second concentration is 0mg/mL to 10mg/mL.
The present embodiment is respectively defined the concentration range of the first concentration and the second concentration, to guarantee to use the first ink
The printing effect of corresponding substrate printing is carried out with the second ink.
As one embodiment, the value range of second concentration is 1mg/mL to 10mg/mL；
In the first ink injection rule, the ink volume V1 (n) that n-th of printing stroke is sprayed to front substrate is n
Incremental linear function.
Above-mentioned incremental linear function can be direct proportion function, the first ink jet system spray the first ink volume with
It prints the increase of number of strokes and increases, the second ink jet system that can compensate sprays the volume of the second ink with printing number of strokes
Increase and reduces lost solute amount, to guarantee that it is consistent that each printing stroke sprays solute amount contained by the ink to substrate,
It thereby may be ensured that the printing effect of substrate.
It is above-mentioned as one embodiment
In formula, V10The volume of first ink needed for indicating the pixel that the last one printing stroke is covered, V20Indicate first
The volume of second ink needed for the pixel that a printing stroke is covered, above-mentioned V10It can be according to the first concentration and objective function layer
Film thickness is determining, above-mentioned V20It can be determined according to the second concentration and objective function tunic thickness, N indicates that completing front substrate printing makees
Number of strokes needed for industry.
When the present embodiment carries out inkjet printing to substrate, in n-th of printing stroke, the first ink can be controlled in backhaul
Water ink-jet systems eject volume is the ink of V1 (n), the ink that control the second ink jet system injection volume is V2 (n), In
The voltage of the first ink jet system and the second ink jet system is adjusted respectively in backhaul, so that (n+1)th printing
In the backhaul of stroke, than n-th printing stroke of ink volume of the first ink jet system injection is increasedAnd the second ink
Than n-th printing stroke of the ink volume of water ink-jet systems eject reduces
The present embodiment can control the first ink jet system and the second ink jet system in each printing stroke respectively
Accurate ink-jet carried out to front substrate, specific higher accuracy further ensures the uniform of printing-filming on front substrate
Property.
It is above-mentioned as one embodimentAcquisition process may include:
The first ink jet system is set as inkstick1, is printed for high concentration functional ink, the second ink jet
System is inkstick2, is printed for low concentration functional ink.The inkstick1's in print procedure, inkstick2 beats
Printing ink water volume changes with the variation of printing sequencing, and the solvent volume of Lai Shixian marking ink is with page order
Successive journey gradient is successively decreased.Specifically, in print procedure inkstick1 print high concentration ink volume V1 (t) can be with beating
It prints the growth of time t and gradually increases, the low concentration volume V2 (t) of inkstick2 printing can be with the growth of print time t
And it gradually decreases.
Printing number of strokes required for the printing of one substrate is completed be N (N is the positive integer greater than 1), and the total time needed is
T.The size of N can be by factors such as the resolution ratio, nozzle (printing head) number and size of substrate, pixel distribution of print head
It determines, the size of T depends on print speed v, print head transverse shifting speed u and printing number of strokes N.Make in print procedure
The solvent volume that is printed in first print area on the substrate volume that is greater than rear print area internal solvent mode may include: with
Printing progress, printing high-concentration and low-concentration ink mixed proportion change, page order is more rearward, high boiling in marking ink
The volume ratio of point ink increases, and low boiling point ink ratio reduces；And it should be the low concentration of large volume in the pixel printed at first
Ink should be the high concentration ink of small size in the pixel finally printed.In print procedure, the body of high-concentration and low-concentration ink is adjusted
Product can effectively realize the successive stepped reduction of total solvent volume of printing, while guarantee to print the solutes content m in successive pixel
It immobilizes, realizes that large area film thickness is identical, equally distributed printing film.Thus printing initial ink volume can satisfy:
C1*V10=C2*V20=m (2)
In formula, C1Indicate the body (the first concentration) of inkstick1, C2Indicate the body of inkstick2
(the second concentration), V10The volume of first ink needed for indicating the pixel that the last one printing stroke is covered, V20Indicate first
The volume of second ink needed for the pixel that printing stroke is covered.
In print procedure, as the sequence printing high concentration ink inkstick1 and printing low concentration that print successive are black
Ink volume, which changes with time, in the inkstick2 of water is respectively as follows:
In conjunction with formula (2) (3) (4), C can be obtained1*V1(t)+C2* V2 (t)=m；Meet picture in whole printing process
Solute volume is fixed in element, ensure that different zones printing thin film thickness is identical on entire substrate.
The regulation of the volume of inkstick jet ink can be realized by factors such as time, the voltage swings of pulse voltage
Corresponding control.It can be specifically gradually increased at any time by applying a voltage swing respectively to inkstick1 and inkstick2
Voltage pulse signal U1 (t), the voltage pulse signal U2 (t) that is gradually reduced at any time, come regulate and control inkstick1,
The volume change of inkstick2 jet ink meets formula (3), (4).Between when printed when T longer, then inkstick is needed to exist
The voltage pulse signal for the ink volume for needing to adjust in unit timeSmaller, voltage gets over the effect precision of inkstick
Height increases the difficulty of voltage pulse output.Preferably, the period of change to print number of strokes as voltage is selected, i.e., identical
In number of strokes, the solvent volume of printing be it is identical, with the increase of printing number of strokes, the volume for printing solvent reduces, i.e., public
Formula (3) (4) can be corrected are as follows:
In formula, t' is particular value relevant to printing number of strokes,N be with printing carry out number of strokes (when
Number of strokes locating for preceding printing), n is the positive integer greater than 0.It willIt substitutes into formula (5) (6), available:
In this way, the ink volume that inkstick1 sprays in print procedure increases as printing number of strokes n increases；
The low concentration ink volume of inkstick2 injection reduces as printing number of strokes n increases.And it is printed in identical printing stroke
The ink solute amount that different zones are sprayed is identical.This, simplifies regulating and controlling voltage is controlled to inkstick, i.e., n-th
When a printing stroke carries out, the volume sprayed on backhaul inkstick is all the same, and inkstick does not spray in backhaul, while right
Voltage on inkstick is adjusted, so that when (n+1)th printing stroke, the printing high concentration ink volume of inkstick1
The volume that number of strokes is printed than n-th increasesAnd the printing low concentration ink volume of inkstick2 is printed than n-th
The volume of number of strokes reduces
It, can be refering to what is shown in Fig. 4, printing sequencing under the action of double print systems using above-mentioned control mode
The solvent-laden volume of ink institute is gradually reduced in region, and the region body printed at first is low, and solvent content is big (such as Fig. 4 a)；
And the region body finally printed is big, solvent content height (such as Fig. 4 c).In this way, successively being beaten when printing large area film
Solvent Gradient contained by the ink of print can steam atmosphere long with the effective compensation elder generation print area ink volatilization time and volatilization environment
The first very fast problem of print area ink dried is caused under enclosing, so that according to printing sequencing different zones after the completion of printing
Ink dried degree is identical (with reference to shown in Fig. 5), effectively raises the uniformity of large area printing different zones film.
As one embodiment, second concentration is 0；
In first ink injection rule, n-th of printing stroke to the ink volume V1 (n) that front substrate sprays be normal
Number function.
The concentration of above-mentioned second ink is 0, i.e. the second ink is pure solvent, and V1 (n) is constant function, such first ink
The volume of the first ink of ink-jet systems eject remains unchanged, and the second ink jet system sprays the volume of pure solvent ink with printing
Number of strokes increases and reduces, and making to spray the ink solute amount to substrate remains unchanged, and quantity of solvent is with the increase for printing number of strokes
And reduce, form on substrate the successively solvent volume gradient of print area, with compensate in print procedure the ink volatilization time difference with
And the inhomogeneities of ink dried degree caused by vapour concentration difference.
Specifically, above-mentioned V1 (n)=V1,
In formula, V1 indicates volume constant, can determine according to the first concentration and the display feature of substrate, V20Indicate first
The volume of second ink needed for a pixel for being covered of printing stroke according to the boiling point of the second ink solvent and can print phase
Print time needed for answering substrate determines, it is generally the case that the boiling point of the second ink solvent is lower, and the print time is longer, V20's
Value is bigger, and N indicates number of strokes needed for completing front substrate print job.
The present embodiment only needs the solvent printing voltage in the second ink jet system of control that can realize to the spray of the second ink
The adjusting of each printing stroke institute ejection of solvent volume of ink system, reduces the complexity of ink-jet control, simplifies corresponding
Control process.
In one embodiment, the ink solvent of first ink and the second ink is the first solvent and the second solvent
Mixed mixed solvent, wherein the boiling point of the first solvent need to be greater than 200 DEG C, the boiling point of the second solvent is less than first solvent
Boiling point.
Specifically, the boiling spread of above-mentioned second solvent can be 100 DEG C -150 DEG C.
The present embodiment is using the mixed solvent of high low boiling point mixing as the first ink jet system and the second ink jet
Ink solvent in system facilitates the control in print procedure to ink degree of volatility, advantageously ensures that printing-filming
Uniformity.
The ink-jet control system structural schematic diagram of one embodiment is shown with reference to Fig. 6, Fig. 6, comprising:
Computing module 10, for calculating printing number of strokes needed for ink jet printing device completes front substrate print job,
First ink injection rule and second of the first ink jet system in print procedure is set according to the printing number of strokes
Second ink injection rule of the ink jet system in print procedure；Wherein, the first ink injection rule is is sprayed
Ink volume it is each printing stroke it is identical or with printing number of strokes increase and increased rule；The second ink spray
Penetrate the rule rule reduced with the increase of printing number of strokes for the ink volume of injection；
Control module 20, for controlling the first ink jet system according to the first ink injection rule to front substrate
The first ink of the first concentration is sprayed, and controls the second ink jet system simultaneously according to the second ink injection rule to working as
Preceding substrate sprays the second ink of the second concentration, makes the first ink jet system and the second ink jet system in each print line
Ink solute amount remains unchanged in the ink that journey is sprayed, and ink solvent amount reduces with the increase of printing number of strokes；Wherein institute
The first concentration is stated greater than the second concentration.
In one embodiment, the first ink injection rule is included in n-th of printing stroke, sprays to front substrate
The ink that beam product is V1 (n)；Wherein V1 (n) constant function or the incremental linear function for n；
The second ink injection rule is included in n-th of printing stroke, is V2's (n) to front substrate injection volume
Ink；Wherein V2 (n) is the linear function that successively decreases of n.
As one embodiment, the value range of first concentration is 10mg/mL to 30mg/mL, second concentration
Value range be 0mg/mL to 10mg/mL.
As one embodiment, the value range of second concentration is 1mg/mL to 10mg/mL；
In the first ink injection rule, the ink volume V1 (n) that n-th of printing stroke is sprayed to front substrate is n
Incremental linear function.
As one embodiment, second concentration is 0；
In first ink injection rule, n-th of printing stroke to the ink volume V1 (n) that front substrate sprays be normal
Number function.
In one embodiment, the ink solvent of first ink and the second ink is the first solvent and the second solvent
Mixed mixed solvent, wherein the boiling point of the first solvent need to be greater than 200 DEG C, the boiling point of the second solvent is less than first solvent
Boiling point.
Computer system 1000 shown in Fig. 7 is the example for being suitable for computer system of the invention.Have
Other frameworks of different sub-systems configuration also can be used.Such as to have big well known desktop computer, notebook etc. similar
Equipment can be adapted for some embodiments of the present invention.But it is not limited to equipment enumerated above.
As shown in fig. 7, computer system 1000 includes processor 1010, memory 1020 and system bus 1022.Including
Various system components including memory 1020 and processor 1010 are connected on system bus 1022.Processor 1010 is one
For executing the hardware of computer program instructions by arithmetic sum logical operation basic in computer system.Memory 1020
It is one for temporarily or permanently storing the physical equipment of calculation procedure or data (for example, program state information).System is total
Line 1020 can be any one in the bus structures of following several types, including memory bus or storage control, outer
If bus and local bus.Processor 1010 and memory 1020 can carry out data communication by system bus 1022.Wherein
Memory 1020 includes read-only memory (ROM) or flash memory (being all not shown in figure) and random access memory (RAM), RAM
Typically refer to the main memory for being loaded with operating system and application program.
Computer system 1000 further includes display interface 1030 (for example, graphics processing unit), display 1040 (example of equipment
Such as, liquid crystal display), audio interface 1050 (for example, sound card) and audio frequency apparatus 1060 (for example, loudspeaker).
Computer system 1000 generally comprises a storage equipment 1070.Storing equipment 1070 can from a variety of computers
It reads to select in medium, computer-readable medium refers to any available medium that can be accessed by computer system 1000,
Including mobile and fixed two media.For example, computer-readable medium includes but is not limited to, flash memory (miniature SD
Card), CD-ROM, digital versatile disc (DVD) or other optical disc storages, cassette, tape, disk storage or other magnetic storages are set
Any other medium that is standby, or can be used for storing information needed and can be accessed by computer system 1000.
Computer system 1000 further includes input unit 1080 and input interface 1090 (for example, I/O controller).User can
With by input unit 1080, such as the touch panel equipment in keyboard, mouse, display device 1040, input instruction and information are arrived
In computer system 1000.Input unit 1080 is usually connected on system bus 1022 by input interface 1090, but
It can also be connected by other interfaces or bus structures, such as universal serial bus (USB).
Computer system 1000 can carry out logical connection with one or more network equipment in a network environment.Network is set
It is standby to can be PC, server, router, tablet computer or other common network nodes.Computer system 1000 is logical
It crosses local area network (LAN) interface 1100 or mobile comm unit 1110 is connected with the network equipment.Local area network (LAN) refers to having
It limits in region, such as family, school, computer laboratory or the office building using the network media, interconnects the computer of composition
Network.WiFi and twisted pair wiring Ethernet are two kinds of technologies of most common building local area network.WiFi is a kind of to make to calculate
1000 swapping data of machine system or the technology that wireless network is connected to by radio wave.Mobile comm unit 1110 can be one
It answers and makes a phone call by radio communication diagram while movement in a wide geographic area.Other than call, move
Dynamic communication unit 1110 is also supported to carry out internet visit in 2G, 3G or the 4G cellular communication system for providing mobile data service
It asks.
It should be pointed out that other includes than the computer system of the more or fewer subsystems of computer system 1000
It can be suitably used for inventing.As detailed above, ink discharge control method can be executed by being suitable for the invention computer system 1000
Specified operation.Computer system 1000 is by way of the software instruction that processor 1010 is run in computer-readable medium
To execute these operations.These software instructions can be from storage equipment 1070 or by lan interfaces 1100 from another equipment
It is read into memory 1020.The software instruction being stored in memory 1020 makes processor 1010 execute above-mentioned ink-jet control
Method processed.In addition, also can equally realize the present invention by hardware circuit or hardware circuit combination software instruction.Therefore, it realizes
The present invention is not limited to the combinations of any specific hardware circuit and software.
Ink-jet control system of the invention and ink discharge control method of the invention correspond, in above-mentioned ink discharge control method
Embodiment illustrate technical characteristic and its advantages suitable for the embodiment of ink-jet control system.
Refering to what is shown in Fig. 8, Fig. 8 is the ink jet printing device bottom view of one embodiment, including the first ink jet system
Inkstick1, the second ink jet system inkstick2, print carriage and printing mobile system；First ink jet system
System inkstick1 and the second ink jet system inkstick2 is set in parallel to each other on the print carriage；
The printing mobile system controls the first ink jet system and the second ink jet system in print procedure
System movement；Specifically, printing mobile system can be controlled separately shift position and the moving direction of each ink jet system.
As shown in figure 8, ink-jet area can be set on above-mentioned ink jet system (inkstick1 and inkstick2) and beat
Print head.Ink jet system is ink injection mechanism, can execute the operations such as injection and the circulation fluid infusion of ink, can regulate and control spray
Penetrate speed, the volume etc. of drop.Each ink jet system includes ink storage unit, printing head and for controlling
The electricity of nozzle (printing head) ink ejecting state, gas control system.Wherein, two ink jet systems be mutually indepedent control,
It is parallel to each other, the two may be mounted on corresponding printing mobile system, as the progress of printing works independently simultaneously.
Above-mentioned first ink jet system and the second ink jet system are printed using functional ink respectively, such as the first ink
The first ink can be used in water ink-jet system, and the second ink can be used in the second ink jet system.Corresponding inkjet printing is set
It is standby to can be used for printing hole injection layer, hole transmission layer, organic luminous layer and electron transfer layer etc..
Any one ink discharge control method that above-mentioned ink jet printing device can be provided using above embodiments carries out ink-jet
The printing to front substrate is realized in control.Specifically, the first ink jet system can be according to the first ink injection rule to working as
First ink of preceding substrate injection high concentration, the second ink jet system can be according to the second ink injection rules to front substrate
Spray the second ink of low concentration；Wherein, the first ink injection rule is the ink volume sprayed in each print line
Cheng Xiangtong or the increased rule with the increase for printing number of strokes；The second ink injection rule is the ink volume of injection
The reduced rule with the increase of printing number of strokes.
Above-mentioned ink jet printing device, including the first ink jet system and the second ink jet system, above-mentioned first ink
Ink-jet system and the second ink jet system can be respectively according to respective ink injection rule independently of each other to front substrates
Jet ink, convenient for spraying in controlling each printing stroke to the ink volume of substrate, so that falling in molten in first print area
Agent total volume is greater than the total solvent volume fallen in rear print area, can use solvent body existing for successive print area in this way
Product gradient compensation print procedure in ink volatilization the time difference and vapour concentration difference caused by ink dried degree it is uneven
Property, to guarantee the uniformity of substrate printing-filming.
Further, if the first ink jet system according to the first ink injection rule to front substrate jet ink,
Two ink jet systems, to front substrate jet ink, can to fall in first print area according to the second ink injection rule
Total solvent volume is greater than the total solvent volume fallen in rear print area, and successively there are solvent volume gradients to mend for print area
The inhomogeneities for repaying ink drying rate caused by printing front and back ink volatilization time difference and vapour concentration difference, is thus protected
The uniformity of printing-filming is demonstrate,proved, so that ensure that typographical display device lights performance.
In one embodiment, the first ink jet system and the second ink jet system include that ink storage is single
Member, printing head and the ink-jet control unit for controlling printing head ink ejecting state.
First ink jet system and the second ink jet system respectively include ink-jet control unit, and above-mentioned ink-jet control is single
Member can respectively the ink jet system according to corresponding ink injection rule control where it to front substrate jet ink.
Above-mentioned first ink jet system and the second ink jet system can pass through corresponding ink-jet control unit respectively
Injection and the circulation fluid infusion etc. for controlling ink, can also carry out the regulation of the parameters such as speed, the volume of jet ink, to guarantee phase
Close the accuracy of control or regulation.
Based on example as described above, a kind of computer equipment is also provided in one embodiment, the computer equipment packet
The computer program that includes memory, processor and storage on a memory and can run on a processor, wherein processor executes
It realizes when described program such as any one ink discharge control method in the various embodiments described above.
Above-mentioned computer equipment is realized in ink jet printing process by the computer program run on the processor
Corresponding ink jet printing performance can be improved in the promotion of film-formation result.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, it is non-volatile computer-readable that the program can be stored in one
It takes in storage medium, in the embodiment of the present invention, which be can be stored in the storage medium of computer system, and by the calculating
At least one processor in machine system executes, and includes the process such as the embodiment of above-mentioned ink discharge control method with realization.Wherein,
The storage medium can be magnetic disk, CD, read-only memory (Read-Only Memory, ROM) or random storage note
Recall body (Random Access Memory, RAM) etc..
Accordingly, a kind of computer storage medium is also provided in one embodiment, is stored thereon with computer program,
In, it realizes when which is executed by processor such as any one ink discharge control method in the various embodiments described above.
Above-mentioned computer storage medium can be guaranteed the uniformity of printing-filming, be kept away by the computer program that it is stored
Exempt from the appearance that typographical display device shows the situations such as mura, that improves typographical display device lights performance.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (11)
1. a kind of ink discharge control method characterized by comprising
Printing number of strokes needed for ink jet printing device completes front substrate print job is calculated, is set according to the printing number of strokes
First ink injection rule and second ink jet system of the fixed first ink jet system in print procedure were printing
The second ink injection rule in journey；Wherein, the first ink injection rule is the ink volume sprayed in each printing
Stroke increase and increased rule identical or with printing number of strokes；The second ink injection rule is the ink body of injection
The product rule reduced with the increase of printing number of strokes；
It controls the first ink jet system and sprays the first of the first concentration to front substrate according to the first ink injection rule
Ink, and control the second ink jet system simultaneously and spray the second concentration to front substrate according to the second ink injection rule
The second ink, make the first ink jet system and the second ink jet system ink in each ink for being sprayed of printing stroke
Water-soluble quality remains unchanged, and ink solvent amount reduces with the increase of printing number of strokes；Wherein first concentration is greater than second
Concentration.
2. ink discharge control method according to claim 1, which is characterized in that the first ink injection rule is included in
In n printing stroke, the ink for being V1 (n) to front substrate injection volume；Wherein V1 (n) is constant function or is passing for n
Increase linear function；
The second ink injection rule is included in n-th of printing stroke, the ink for being V2 (n) to front substrate injection volume
Water；Wherein V2 (n) is the linear function that successively decreases of n.
3. ink discharge control method according to claim 2, which is characterized in that the value range of first concentration is
10mg/mL to 30mg/mL, the value range of second concentration are 0mg/mL to 10mg/mL.
4. ink discharge control method according to claim 2 or 3, which is characterized in that the value range of second concentration is
1mg/mL to 10mg/mL；
In the first ink injection rule, the ink volume V1 (n) that n-th of printing stroke is sprayed to front substrate is passing for n
Increase linear function.
5. ink discharge control method according to claim 2 or 3, which is characterized in that second concentration is 0；
In the first ink injection rule, the ink volume V1 (n) that n-th of printing stroke is sprayed to front substrate is constant letter
Number.
6. ink discharge control method according to any one of claims 1 to 3, which is characterized in that first ink and second
The ink solvent of ink is the first solvent and the mixed mixed solvent of the second solvent, wherein the boiling point of the first solvent need to be greater than
200 DEG C, the boiling point of the second solvent is less than the boiling point of first solvent.
7. a kind of ink-jet control system characterized by comprising
Computing module, for calculating printing number of strokes needed for ink jet printing device completes front substrate print job, according to institute
It states printing number of strokes and sets first ink injection rule and second ink spray of the first ink jet system in print procedure
Second ink injection rule of the ink system in print procedure；Wherein, the first ink injection rule is the ink that is sprayed
The volume increase and increased rule identical or with printing number of strokes in each printing stroke；The second ink injection rule
For the ink volume of the injection rule reduced with the increase of printing number of strokes；
Control module, for controlling the first ink jet system according to the first ink injection rule to front substrate injection the
First ink of one concentration, and the second ink jet system is controlled simultaneously according to the second ink injection rule to front substrate
The second ink for spraying the second concentration sprays the first ink jet system and the second ink jet system in each printing stroke
Ink solute amount remains unchanged in the ink penetrated, and ink solvent amount reduces with the increase of printing number of strokes；Wherein described first
Concentration is greater than the second concentration.
8. a kind of ink jet printing device, which is characterized in that including the first ink jet system, the second ink jet system, printing
Bracket and printing mobile system；
The first ink jet system and the second ink jet system are set in parallel to each other on the print carriage；
The printing mobile system controls the first ink jet system in print procedure and the second ink jet system is moved
It is dynamic.
9. ink jet printing device according to claim 8, which is characterized in that the first ink jet system and the second ink
Water ink-jet system includes ink storage unit, printing head and the ink-jet control list for controlling printing head ink ejecting state
Member.
10. a kind of computer equipment, including memory, processor and it is stored on the memory and can be in the processor
The computer program of upper operation, which is characterized in that the processor realized when executing the computer program as claim 1 to
Ink discharge control method described in 7 any one.
11. a kind of computer storage medium, is stored thereon with computer program, which is characterized in that the program is executed by processor
Shi Shixian ink discharge control method as claimed in any one of claims 1 to 7.
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