CN110077112A - The drop placement bearing calibration of printing nozzle, device and system - Google Patents
The drop placement bearing calibration of printing nozzle, device and system Download PDFInfo
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- CN110077112A CN110077112A CN201810348782.6A CN201810348782A CN110077112A CN 110077112 A CN110077112 A CN 110077112A CN 201810348782 A CN201810348782 A CN 201810348782A CN 110077112 A CN110077112 A CN 110077112A
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- printing nozzle
- ink droplet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
- B41J2/125—Sensors, e.g. deflection sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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- Ink Jet (AREA)
Abstract
The present invention relates to drop placement bearing calibration, device, system, computer equipment and the computer readable storage mediums of a kind of printing nozzle, and wherein method includes: to detect the longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle；Wherein, longitudinal for by the moving direction of printing substrate, lateral is the moving direction of printing nozzle；The vertical misalignment distance of the ink droplet drops of printing nozzle is determined according to longitudinal off-centre angulation, and the lateral shift distance of the ink droplet drops of printing nozzle is determined according to lateral shift angle；The lateral shift compensation rate that the vertical misalignment compensation rate and lateral shift distance determined according to vertical misalignment distance determines, compensates correction to the ink droplet drops position of printing nozzle.The above method obtains vertical misalignment distance and lateral shift distance compensates correction, avoid printing nozzle ink droplet drops positional shift, promote the accuracy of printing nozzle printing by detecting the longitudinal off-centre angulation and lateral shift angle of printing nozzle ink droplet drops.
Description
Technical field
The present invention relates to inkjet printing technology field, more particularly to a kind of printing nozzle drop placement bearing calibration,
Device, system, computer equipment and computer readable storage medium.
Background technique
Inkjet printing technology is widely used to device system other than being applied to the printing of traditional paper character pattern
Make in technique, such as certain functional materials in OLED device manufacture craft can use InkJet printing processes, such as hole to infuse
Enter layer (HIL), hole transmission layer (HTL), emitting layer material (EML) etc..I.e. in known pixel hole, with the side of inkjet printing
Functional layer material ink is driven into pixel hole by formula.According to the characteristic of InkJet printing processes, ink material is filled in pixel is cheated
The film thickness uniformity of material is the important investigation point of technique, this is required in InkJet printing processes, the ink instilled in each pixel hole
Water volume wants identical.Assuming that some ink droplets have been fallen in except pixel hole, it is meant that should correspond in the pixel hole fallen into compared to it
Just has lacked ink volume in his pixel hole, then such problems will certainly occur, ink material by being dried under reduced pressure and
After baking process, material film thickness is just unevenly distributed, and thus will affect the performance of device.Therefore, InkJet printing processes are wherein
One critically important content, exactly requires ink droplet to fall in the precision in pixel.
Inside ink jet printing device, it is typically provided the element (Ink stick) of filling ink material, and be located at filling
The inkjet print head (Print head) of the component base of ink material, ink material pass through the nozzle on Print head
(Nozzle) it sprays, is driven into the pixel on glass substrate.When carrying out inkjet printing, the glass substrate that is printed is towards setting
Fixed direction vertically moves, and the nozzle on print head is along the direction transverse movement vertical with glass substrate moving direction.
Current technology problem is: in print procedure, the movement of print-head nozzle and the movement of glass substrate are easy
So that ink droplet drops position generates offset error, and this offset error will lead to when carrying out inkjet printing, ink droplet drops position
It sets and deviates ideal dripping position, or even be dropped in except pixel hole, cause in InkJet printing processes that pixel is cheated on glass substrate
It is abnormal to eventually lead to OLED device efficiency for interior ink material membrane thickness unevenness after being dried under reduced pressure.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide it is a kind of can the drop placement to printing nozzle carry out school
Just, drop placement bearing calibration, device, system, the calculating of the printing nozzle of the accuracy of the ink droplet drops of printing nozzle are promoted
Machine equipment and computer readable storage medium.
A kind of drop placement bearing calibration of printing nozzle, comprising the following steps:
Detect the longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle；Wherein, the longitudinal direction is
By the moving direction of printing substrate, the transverse direction is the moving direction of printing nozzle；
The vertical misalignment distance of the ink droplet drops of printing nozzle is determined according to the longitudinal off-centre angulation, and according to the cross
The lateral shift distance of the ink droplet drops of printing nozzle is determined to deviation angle；
It is laterally inclined apart from what is determined apart from the vertical misalignment compensation rate and lateral shift determined according to the vertical misalignment
Compensation rate is moved, correction is compensated to the ink droplet drops position of the printing nozzle.
The drop placement bearing calibration of above-mentioned printing nozzle, before to by printing substrate progress inkjet printing, by detecing
The longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle are surveyed, calculates and obtains corresponding vertical misalignment distance
With with lateral shift distance, correction is compensated for the vertical misalignment distance and lateral shift distance of ink droplet, so as to keep away
Exempt from inkjet print head in use, the ink droplet drops positional shift of printing nozzle, and cause ink droplet drops pixel cheat
Except, promote the accuracy of printing nozzle printing.
In one embodiment, the longitudinal off-centre angulation of the ink droplet drops of the detecting printing nozzle and lateral shift angle
Degree includes:
It obtains longitudinal detecting image of the ink droplet drops of each printing nozzle on print head and laterally detects image；Root
According to the ink droplet of longitudinal detecting each printing nozzle of image recognition in longitudinal longitudinal off-centre angulation, and detectd according to the transverse direction
Altimetric image identifies the ink droplet of each printing nozzle in lateral lateral shift angle.
The drop placement bearing calibration of above-mentioned printing nozzle passes through each printing nozzle on the print head detected respectively
Longitudinal detecting image of ink droplet drops and laterally detecting image, identification obtain the vertical misalignment angle of the ink droplet of each printing nozzle
Degree and lateral shift angle, can accurately obtain the drop placement angle of each printing nozzle on print head, and scheme is easy
In realization.
In one embodiment, the ink droplet drops that printing nozzle is determined according to the longitudinal off-centre angulation is longitudinal inclined
Distance is moved, and determines that the lateral shift distances of the ink droplet drops of printing nozzle includes: according to the lateral shift angle
Obtain printing nozzle and by the distance between printing substrate；According to the longitudinal inclined of the ink droplet drops of each printing nozzle
Angle is moved, determines longitudinal peak excursion angle of the ink droplet drops of printing nozzle, according to the distance and longitudinal maximum
Deviation angle determines the vertical misalignment distance of the ink droplet drops of printing nozzle；According to the cross of the ink droplet drops of each printing nozzle
To deviation angle, the lateral peak excursion angle of the ink droplet drops of printing nozzle is determined, according to the distance and the transverse direction
Peak excursion angle determines the lateral shift distance of the ink droplet drops of printing nozzle.
The drop placement bearing calibration of above-mentioned printing nozzle, with the longitudinal off-centre angulation of the ink droplet drops of each printing nozzle
In maximum value be longitudinal peak excursion angle, and with the maximum in the lateral shift angle of the ink droplet drops of each printing nozzle
Value is lateral peak excursion angle, determines the vertical misalignment distance and lateral shift distance of the ink droplet drops of printing nozzle, can
Effectively simplify calculating process, promotes operation efficiency.
In one embodiment, the vertical misalignment distance of the ink droplet drops of the printing nozzle is obtained according to following formula:
Δ X1=S × tan αmax
In above formula, Δ X1 is printing nozzle in longitudinal offset distance, αmaxFor the longitudinal off-centre angulation of each printing nozzle
Maximum value, S be printing nozzle with by the distance between printing substrate.
In one embodiment, the lateral shift distance of the ink droplet drops of the printing nozzle is obtained according to following formula:
Δ X2=S × tan βmax
In above formula, Δ X2 is printing nozzle in lateral offset distance, βmaxFor the lateral shift angle of each printing nozzle
Maximum value, S be printing nozzle with by the distance between printing substrate.
Through the above scheme, can quickly and easily calculate obtain printing nozzle ink droplet drops vertical misalignment distance and
Lateral shift distance.
In one embodiment, the vertical misalignment offset determined according to the vertical misalignment distance, and laterally
The lateral shift offset that offset distance determines, compensating correction to the ink droplet drops position of the printing nozzle includes:
To before carrying out inkjet printing by printing substrate, printing nozzle longitudinal direction ink droplet is arranged according to longitudinal offset distance
The eccentric traveling distance of drippage, and according to the eccentric traveling distance of lateral offset distance setting printing nozzle transverse direction ink droplet drops, it is right
The ink droplet drops position of the printing nozzle is corrected.
The drop placement bearing calibration of above-mentioned printing nozzle, before to by printing substrate progress inkjet printing, according to vertical
To offset distance setting printing nozzle longitudinal direction ink droplet drops eccentric traveling distance, and printing is arranged according to lateral offset distance
The eccentric traveling distance of nozzle transverse direction ink droplet drops is corrected the ink droplet drops position of the printing nozzle, so as to support
The influence of the printing nozzle ink droplet drops that disappear offset, so that after the compensation for passing through eccentric traveling distance, the reality of the ink droplet of printing head
Dripping position is located on ideal dripping position, promotes the accuracy of printing nozzle ink droplet drops.
A kind of drop placement means for correcting of printing nozzle, comprising:
Deviation angle detecting module, for detecting offset of the ink droplet in longitudinal deviation angle and transverse direction of printing nozzle
Angle；Wherein, the longitudinal direction is by the moving direction of printing substrate, and the transverse direction is the moving direction of printing nozzle；
Offset distance obtains module, and for the deviation angle according to longitudinal deviation angle and transverse direction, determination is beaten
Nozzle is printed in the offset distance of longitudinal offset distance and transverse direction；
Offset correction module, for the offset distance according to longitudinal offset distance and transverse direction, to the printing
The ink droplet drops position of nozzle compensates correction.
The drop placement means for correcting of above-mentioned printing nozzle, before to by printing substrate progress inkjet printing, by detecing
The longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle are surveyed, calculates and obtains corresponding vertical misalignment distance
With with lateral shift distance, correction is compensated for the vertical misalignment distance and lateral shift distance of ink droplet, so as to keep away
Exempt from inkjet print head in use, the ink droplet drops positional shift of printing nozzle, and cause ink droplet drops pixel cheat
Except, promote the accuracy of printing nozzle printing.
A kind of drop placement of printing nozzle corrects system, connects the system comprises: arrangement for detecting and with arrangement for detecting
The processor connect；The arrangement for detecting is used to detect the image for obtaining printing nozzle ink droplet drops；
The step of drop placement bearing calibration for the printing nozzle that the processor is used to execute any embodiment as above.
The drop placement of above-mentioned printing nozzle corrects system, before InkJet printing processes, is detected and is obtained by arrangement for detecting
The image transmitting of printing nozzle ink droplet drops to processor, processor analysis obtains the vertical misalignment of the ink droplet drops of printing nozzle
Angle and lateral shift angle, calculate obtain corresponding vertical misalignment distance with lateral shift distance, for the vertical of ink droplet
Correction is compensated to offset distance and lateral shift distance, is realized to printing nozzle moving direction and by printing substrate movement side
After the compensation correction of upward ink drop offset, then carry out InkJet printing processes.So as to avoid in inkjet print head in length
In phase use process, ink droplet drops positional shift, and lead to exception of the ink droplet drops except pixel hole, it promotes printing nozzle and beats
The accuracy of print.
In one embodiment, the arrangement for detecting includes the first camera and second camera；
The first camera transverse direction is detectd towards printing nozzle for shooting the longitudinal direction of ink droplet drops of printing nozzle
Altimetric image；The second camera longitudinal direction is detectd towards printing nozzle for shooting the transverse direction of ink droplet drops of printing nozzle
Altimetric image.
The drop placement of above-mentioned printing nozzle corrects system, can shoot respectively detecing for vertical and horizontal by two groups of cameras
Altimetric image, scheme are easily achieved.
In one embodiment, the arrangement for detecting further includes first light source and second light source；The first light source is lateral
Direction is and opposite with first camera towards printing nozzle, for shooting printing nozzle ink droplet in first camera
Ink droplet drops longitudinal detecting image when, emit illumination to printing nozzle；The second light source longitudinal direction is sprayed towards printing
Mouth, and it is opposite with the second camera, and the transverse direction for the ink droplet drops in second camera shooting printing nozzle is detectd
When altimetric image, emit illumination to printing nozzle.
The drop placement of above-mentioned printing nozzle corrects system, shoots detecing for the ink droplet drops of printing nozzle ink droplet in camera
When altimetric image, emit illumination to printing nozzle, the effect of printing nozzle shooting image can be promoted, then promotes what detecting obtained
The longitudinal off-centre angulation of the ink droplet drops of printing nozzle and the accuracy of lateral shift angle.And it is outer to make system be not required to dependence
Portion's light conditions can be run, the adaptability that lifting system uses.
In one embodiment, the drop placement correction system of the printing nozzle of the embodiment of the present invention further include be placed in it is described
Ink titration cell below printing nozzle, the ink droplet for access printing nozzle drippage.
The drop placement of above-mentioned printing nozzle corrects system, the ink droplet dripped by ink titration cell access printing nozzle,
The ink droplet that can be dripped to avoid printing nozzle pollutes the environment.
In one embodiment, a kind of computer equipment is provided, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, processor perform the steps of when executing computer program
Detect the longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle；Wherein, the longitudinal direction is
By the moving direction of printing substrate, the transverse direction is the moving direction of printing nozzle；
The vertical misalignment distance of the ink droplet drops of printing nozzle is determined according to the longitudinal off-centre angulation, and according to the cross
The lateral shift distance of the ink droplet drops of printing nozzle is determined to deviation angle；
It is laterally inclined apart from what is determined apart from the vertical misalignment compensation rate and lateral shift determined according to the vertical misalignment
Compensation rate is moved, correction is compensated to the ink droplet drops position of the printing nozzle.
Above-mentioned computer equipment, when processor executes program, by realizing step as above, so as to being printed
Before substrate carries out inkjet printing, by longitudinal off-centre angulation and the lateral shift angle of detecting the ink droplet drops of printing nozzle
Degree calculates and obtains corresponding vertical misalignment distance with lateral shift distance, vertical misalignment distance for ink droplet and laterally partially
Move distance compensate correction, so as to avoid inkjet print head in use, the ink droplet drops position of printing nozzle
Offset is set, and causes ink droplet drops except pixel hole, promotes the accuracy of printing nozzle printing.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, is calculated
Machine program performs the steps of when being executed by processor
Detect the longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle；Wherein, the longitudinal direction is
By the moving direction of printing substrate, the transverse direction is the moving direction of printing nozzle；
The vertical misalignment distance of the ink droplet drops of printing nozzle is determined according to the longitudinal off-centre angulation, and according to the cross
The lateral shift distance of the ink droplet drops of printing nozzle is determined to deviation angle；
It is laterally inclined apart from what is determined apart from the vertical misalignment compensation rate and lateral shift determined according to the vertical misalignment
Compensation rate is moved, correction is compensated to the ink droplet drops position of the printing nozzle.
Above-mentioned computer readable storage medium, the computer program of storage, by realizing step as above, so as to
To before carrying out inkjet printing by printing substrate, pass through the longitudinal off-centre angulation and transverse direction of the ink droplet drops of detecting printing nozzle
Deviation angle calculates and obtains corresponding vertical misalignment distance with lateral shift distance, vertical misalignment distance for ink droplet and
Lateral shift distance compensates correction, so as to avoid inkjet print head in use, the ink droplet of printing nozzle
Dripping position offset, and cause ink droplet drops except pixel hole, promote the accuracy of printing nozzle printing.
Detailed description of the invention
Fig. 1 is the applied environment figure of the drop placement bearing calibration of printing nozzle in one embodiment；
Fig. 2 is the flow diagram of the drop placement bearing calibration of printing nozzle in one embodiment；
Fig. 3 is for printing nozzle in one embodiment and by the schematic diagram of the printing substrate direction of motion；
Fig. 4 is the flow diagram of the drop placement bearing calibration of printing nozzle in another embodiment；
Fig. 5 is the schematic diagram of the deviation angle detecting of the ink droplet drops of printing nozzle in one embodiment；
Fig. 6 is the schematic diagram of the offset distance of the ink droplet drops of printing nozzle in one embodiment；
Fig. 7 is the structural block diagram of the drop placement means for correcting of printing nozzle in one embodiment；
Fig. 8 is that the drop placement of printing nozzle in one embodiment corrects the structural schematic diagram of system；
Fig. 9 is that the drop placement of printing nozzle in one embodiment corrects the top view of system；
Figure 10 is the internal structure chart of computer equipment in one embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not
For limiting the present invention.
The drop placement bearing calibration of printing nozzle provided by the invention, can be applied to printing nozzle as shown in Figure 1
Drop placement correction system in.The drop placement correction system of printing nozzle includes arrangement for detecting 110 and and arrangement for detecting
The processor 120 of connection, the image that the detecting of arrangement for detecting 110 obtains 20 ink droplet 21 of printing nozzle drippage are sent to processor 120,
Processor 120 carries out processing analysis to received image, obtains the relevant information of 20 ink droplet 21 of printing nozzle drippage offset, air exercise
Print 20 ink droplet 21 of nozzle drippage offset is corrected.Wherein, processor 120 can be integrated in one equipment with arrangement for detecting 110
In, can also independently it be arranged, such as processor 120 can be realized with terminal devices such as computers.
In one embodiment, as shown in Fig. 2, a kind of drop placement bearing calibration of printing nozzle is provided, with the party
Method is applied to be illustrated for the processor in Fig. 1, comprising the following steps:
S210 detects the longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle；Wherein, described vertical
To for by the moving direction of printing substrate, the transverse direction is the moving direction of printing nozzle.
As shown in figure 3, for being glass substrate by printing substrate, in the nuclear structure of ink jet printing device, Ke Yijian
Vertical X, the three-dimensional system of coordinate in tri- directions Y, Z, wherein print head cage (Ink stick cage) can load print head (Ink
Stick it) is moved on X, Z-direction, glass substrate can move in the Y direction, wherein longitudinal is the Y-direction in Fig. 3, is laterally
X-direction in Fig. 3 can be mobile in Z-direction by control print head when ink jet printing device prints glass substrate
To control the distance between printing head and substrate, mobile in X-direction by control print head, control glass substrate can be in Y
Direction is mobile to carry out inkjet printing.
Wherein, the component of the angle between the longitudinal off-centre angulation ink droplet drops track referred to and Z-direction in the Y direction, it is horizontal
The component of angle between the ink droplet drops track referred to deviation angle and Z-direction in X-direction；
In this step, the longitudinal off-centre angulation of the ink droplet drops of processor detecting printing nozzle and lateral shift angle
Degree；Wherein, the longitudinal direction is by the moving direction of printing substrate, and the transverse direction is the moving direction of printing nozzle.
S220, determines the vertical misalignment distance of the ink droplet drops of printing nozzle according to the longitudinal off-centre angulation, and according to
The lateral shift angle determines the lateral shift distance of the ink droplet drops of printing nozzle.
Wherein, vertical misalignment distance refers to offset distance between the physical location of ink droplet drops and the vertical theoretical position dripped
From in longitudinal component, lateral shift distance refers to be deviated between the physical location of ink droplet drops and the vertical theoretical position dripped
Distance is in lateral component.
In this step, processor determines the vertical misalignment of the ink droplet drops of printing nozzle according to the longitudinal off-centre angulation
Distance, and determine according to the lateral shift angle lateral shift distance of the ink droplet drops of printing nozzle.
S230, what the vertical misalignment compensation rate and lateral shift distance determined according to the vertical misalignment distance determined
Lateral shift compensation rate compensates correction to the ink droplet drops position of the printing nozzle.
The drop placement bearing calibration of above-mentioned printing nozzle, before to by printing substrate progress inkjet printing, by detecing
The longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle are surveyed, calculates and obtains corresponding vertical misalignment distance
With with lateral shift distance, correction is compensated for the vertical misalignment distance and lateral shift distance of ink droplet, so as to keep away
Exempt from inkjet print head in use, the ink droplet drops positional shift of printing nozzle, and cause ink droplet drops pixel cheat
Except, promote the accuracy of printing nozzle printing.
In one embodiment, as shown in figure 4, detecting the longitudinal off-centre angulation of the ink droplet drops of printing nozzle described in S210
And lateral shift angle includes:
S211 obtains longitudinal detecting image of the ink droplet drops of each printing nozzle on print head and laterally detects figure
Picture；
Wherein, generally there are multiple printing nozzles on a print head, in this step, need for each printing nozzle
The frame for carrying out ink droplet titration image respectively is surveyed.For example, carrying out Nozzle ink if there is 128 Nozzle on a Print head
Water droplet timing needs to carry out ink droplet titration for each Nozzle, obtains the picture of 128 inks titration.
S212, the longitudinal off-centre angulation according to the ink droplet of longitudinal detecting each printing nozzle of image recognition in longitudinal direction,
And according to the ink droplet of the laterally detecting each printing nozzle of image recognition in lateral lateral shift angle.
As shown in figure 5, for the schematic diagram of the deviation angle detecting of the ink droplet drops of printing nozzle in one embodiment, it is resonable
In the case of thinking, ink droplet is dripped downwards with vertical direction shown in dotted lines in Figure 5, however in actual operation, the rail of ink droplet drops
Mark can generate offset, the angle in Fig. 5 between the practical drippage track of ink droplet and vertical dotted line, as deviation angle.Pass through detecting
Camera system in device such as Fig. 5, it can respectively shooting obtain longitudinal detecting image of the ink droplet drops of printing nozzle with
And image is laterally detected, then progress image recognition obtains longitudinal off-centre angulation and the lateral shift angle of the ink droplet of printing nozzle
Degree.
The drop placement bearing calibration of above-mentioned printing nozzle passes through each printing nozzle on the print head detected respectively
Longitudinal detecting image of ink droplet drops and laterally detecting image, identification obtain the vertical misalignment angle of the ink droplet of each printing nozzle
Degree and lateral shift angle, can accurately obtain the drop placement angle of each printing nozzle on print head, and scheme is easy
In realization.
In one embodiment, as shown in figure 4, determining the ink of printing nozzle described in S220 according to the longitudinal off-centre angulation
The vertical misalignment distance of drippage, and determine according to the lateral shift angle lateral offset of the ink droplet drops of printing nozzle
From including:
S221 obtains printing nozzle and by the distance between printing substrate；
S222 determines the ink droplet drops of printing nozzle according to the longitudinal off-centre angulation of the ink droplet drops of each printing nozzle
Longitudinal peak excursion angle the ink droplet drop of printing nozzle is determined according to the distance and longitudinal peak excursion angle
The vertical misalignment distance fallen；
S223 determines the ink droplet drops of printing nozzle according to the lateral shift angle of the ink droplet drops of each printing nozzle
Lateral peak excursion angle the ink droplet drop of printing nozzle is determined according to the distance and the lateral peak excursion angle
The lateral shift distance fallen.
The drop placement bearing calibration of above-mentioned printing nozzle, with the longitudinal off-centre angulation of the ink droplet drops of each printing nozzle
In maximum value be longitudinal peak excursion angle, and with the maximum in the lateral shift angle of the ink droplet drops of each printing nozzle
Value is lateral peak excursion angle, determines the vertical misalignment distance and lateral shift distance of the ink droplet drops of printing nozzle, can
Effectively simplify calculating process, promotes operation efficiency.
Fig. 6 is the schematic diagram of the lateral shift distance of the ink droplet drops of printing nozzle in one embodiment, and wherein ink is filled out
Fill the 65 drippage ink droplet 63 of pixel hole on the substrate of the printing nozzle in the inkjet print head 62 on element 61 downward, ink droplet
The angle 66 in 63 practical drippage paths and desired vertical path is lateral shift angle, the ideal drippage position that ink droplet 63 vertically drips
It is the lateral shift of ink droplet drops in lateral shift differences 68 that 64, which are set, between the practical dripping position 67 that actually drips
Distance.Therefore, it is possible to by the lateral shift angle and printing nozzle and substrate of the ink droplet drops of the printing nozzle of detecting it
Between distance calculate obtain the lateral shift distance.
In one embodiment, the vertical misalignment distance of the ink droplet drops of printing nozzle described in S222 is obtained according to following formula:
Δ X1=S × tan αmax
In above formula, Δ X1 is printing nozzle in longitudinal offset distance, αmaxFor the longitudinal off-centre angulation of each printing nozzle
Maximum value, S be printing nozzle with by the distance between printing substrate.
In one embodiment, the lateral shift distance of the ink droplet drops of printing nozzle described in S223 is obtained according to following formula:
Δ X2=S × tan βmax
In above formula, Δ X2 is printing nozzle in lateral offset distance, βmaxFor the lateral shift angle of each printing nozzle
Maximum value, S be printing nozzle with by the distance between printing substrate.
Through the above scheme, can quickly and easily calculate obtain printing nozzle ink droplet drops vertical misalignment distance and
Lateral shift distance.
In one embodiment, as shown in figure 4, being mended described in S230 according to the vertical misalignment that the vertical misalignment distance determines
The lateral shift offset that value and lateral shift distance determine is repaid, the ink droplet drops position of the printing nozzle is mended
Repaying correction includes:
231, to before carrying out inkjet printing by printing substrate, it is longitudinal that printing nozzle is arranged according to longitudinal offset distance
The eccentric traveling distance of ink droplet drops, and according to the migration of lateral offset distance setting printing nozzle transverse direction ink droplet drops
Amount, is corrected the ink droplet drops position of the printing nozzle.
Wherein, the value of eccentric traveling distance is suitable with offset distance, for offsetting the influence of offset distance, so that by inclined
After moving the compensation of compensation rate, the practical dripping position of the ink droplet of printing head is located on ideal dripping position.If such as calculate
Lateral shift distance is Δ X, then before InkJet printing processes, the ink droplet drops eccentric traveling distance in transverse direction can be arranged in system in advance
For-Δ X.
The drop placement bearing calibration of above-mentioned printing nozzle, before to by printing substrate progress inkjet printing, according to vertical
To offset distance setting printing nozzle longitudinal direction ink droplet drops eccentric traveling distance, and printing is arranged according to lateral offset distance
The eccentric traveling distance of nozzle transverse direction ink droplet drops is corrected the ink droplet drops position of the printing nozzle, so as to support
The influence of the printing nozzle ink droplet drops that disappear offset, so that after the compensation for passing through eccentric traveling distance, the reality of the ink droplet of printing head
Dripping position is located on ideal dripping position, promotes the accuracy of printing nozzle ink droplet drops.
It should be understood that although each step in the flow chart of Fig. 2 and Fig. 4 is successively shown according to the instruction of arrow,
But these steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, these
There is no stringent sequences to limit for the execution of step, these steps can execute in other order.Moreover, in Fig. 2 and Fig. 4
At least part step may include that perhaps these sub-steps of multiple stages or stage are not necessarily same to multiple sub-steps
One moment executed completion, but can execute at different times, and the execution in these sub-steps or stage sequence is also not necessarily
Be successively carry out, but can at least part of the sub-step or stage of other steps or other steps in turn or
Alternately execute.
In one embodiment, as shown in fig. 7, providing a kind of drop placement means for correcting of printing nozzle, comprising: partially
Move angle detection module 710, offset distance obtains module 720 and offset correction module 730, in which:
Deviation angle detecting module 710, for detecting the ink droplet of printing nozzle in longitudinal deviation angle and transverse direction
Deviation angle；Wherein, the longitudinal direction is by the moving direction of printing substrate, and the transverse direction is the moving direction of printing nozzle；
Offset distance obtains module 720, for the deviation angle according to longitudinal deviation angle and transverse direction, determines
Offset distance of the printing nozzle in longitudinal offset distance and transverse direction；
Offset correction module 730 is beaten for the offset distance according to longitudinal offset distance and transverse direction described
The ink droplet drops position of print nozzle compensates correction.
The drop placement means for correcting of above-mentioned printing nozzle, before to by printing substrate progress inkjet printing, by detecing
The longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle are surveyed, calculates and obtains corresponding vertical misalignment distance
With with lateral shift distance, correction is compensated for the vertical misalignment distance and lateral shift distance of ink droplet, so as to keep away
Exempt from inkjet print head in use, the ink droplet drops positional shift of printing nozzle, and cause ink droplet drops pixel cheat
Except, promote the accuracy of printing nozzle printing.
In one embodiment, the deviation angle detecting module 710 includes:
Image collection module, for obtain each printing nozzle on print head ink droplet drops longitudinal detecting image with
And laterally detect image；
Deviation angle identification module, for detecting the ink droplet of each printing nozzle of image recognition in longitudinal direction according to the longitudinal direction
Longitudinal off-centre angulation, and according to the ink droplet of the laterally detecting each printing nozzle of image recognition at lateral lateral shift angle
Degree.
In one embodiment, the offset distance acquisition module 720 includes:
Distance obtains module, for obtaining printing nozzle and by the distance between printing substrate；
Vertical misalignment distance obtains module, for the longitudinal off-centre angulation according to the ink droplet drops of each printing nozzle, really
The longitudinal peak excursion angle for determining the ink droplet drops of printing nozzle, according to the distance and longitudinal peak excursion angle,
Determine the vertical misalignment distance of the ink droplet drops of printing nozzle；
Lateral shift distance obtains module, for the lateral shift angle according to the ink droplet drops of each printing nozzle, really
The lateral peak excursion angle for determining the ink droplet drops of printing nozzle, according to the distance and the lateral peak excursion angle,
Determine the lateral shift distance of the ink droplet drops of printing nozzle.
In one embodiment, the vertical misalignment distance obtains module and is further used for the ink droplet drops of printing nozzle
Vertical misalignment distance obtained according to following formula:
Δ X1=S × tan αmax
In above formula, Δ X1 is printing nozzle in longitudinal offset distance, αmaxFor the longitudinal off-centre angulation of each printing nozzle
Maximum value, S be printing nozzle with by the distance between printing substrate.
In one embodiment, the lateral shift distance obtains module and is further used for the ink droplet drops of printing nozzle
Lateral shift distance obtained according to following formula:
Δ X2=S × tan βmax
In above formula, Δ X2 is printing nozzle in lateral offset distance, βmaxFor the lateral shift angle of each printing nozzle
Maximum value, S be printing nozzle with by the distance between printing substrate.
In one embodiment, the offset correction module 730 is further used for beating to by printing substrate progress ink-jet
Before print, according to the eccentric traveling distance of longitudinal offset distance setting printing nozzle longitudinal direction ink droplet drops, and according to the inclined of transverse direction
The eccentric traveling distance for moving distance setting printing nozzle transverse direction ink droplet drops, carries out school to the ink droplet drops position of the printing nozzle
Just.
The specific restriction of drop placement means for correcting about printing nozzle may refer to above for printing nozzle
The restriction of drop placement bearing calibration, details are not described herein.Each mould in the drop placement means for correcting of above-mentioned printing nozzle
Block can be realized fully or partially through software, hardware and combinations thereof.Above-mentioned each module can be embedded in the form of hardware or independence
In processor in computer equipment, it can also be stored in a software form in the memory in computer equipment, in order to
Processor, which calls, executes the corresponding operation of the above modules.
The drop placement correction side of the drop placement means for correcting of printing nozzle of the invention and printing nozzle of the invention
Method corresponds, in the technical characteristic and its advantages of the embodiment elaboration of the drop placement bearing calibration of above-mentioned printing nozzle
Suitable for the embodiment of the drop placement means for correcting of printing nozzle, hereby give notice that.
The present invention also provides a kind of drop placements of printing nozzle to correct system, as shown in Figure 1, the system comprises: it detects
The processor 120 surveying device 110 and being connect with arrangement for detecting；The arrangement for detecting 110 obtains printing nozzle 20 for detecting
The image that ink droplet 21 drips；
The step of drop placement bearing calibration for the printing nozzle that the processor is used to execute any embodiment as above.
Wherein, arrangement for detecting 110 can be camera or other imaging sensors.
The drop placement of above-mentioned printing nozzle corrects system, before InkJet printing processes, is obtained by the detecting of arrangement for detecting 110
For the image transmitting for taking 20 ink droplet 21 of printing nozzle to drip to processor 120, the analysis of processor 120 obtains the ink droplet drop of printing nozzle
The longitudinal off-centre angulation and lateral shift angle fallen, calculate obtain corresponding vertical misalignment distance with lateral shift distance,
Vertical misalignment distance and lateral shift distance for ink droplet compensate correction, realize to printing nozzle moving direction and are beaten
After the compensation correction for printing the ink drop offset on substrate moving direction, then carry out InkJet printing processes.So as to avoid spraying
Black print head in use, the ink droplet drops positional shift of printing nozzle, and cause ink droplet drops pixel hole except
It is abnormal, promote the accuracy that printing nozzle 20 prints.
In one embodiment, processor is computer 9.
In one embodiment, as shown in Figure 8 and Figure 9, the arrangement for detecting includes the first camera 5 and second camera
7；
First camera, 5 transverse direction is towards printing nozzle, the longitudinal direction of the ink droplet drops for shooting printing nozzle
Detect image；7 longitudinal direction of second camera is towards printing nozzle, the transverse direction of the ink droplet drops for shooting printing nozzle
Detect image.
The drop placement of above-mentioned printing nozzle corrects system, can shoot respectively detecing for vertical and horizontal by two groups of cameras
Altimetric image, scheme are easily achieved.
Further, in one embodiment, as shown in Figure 8 and Figure 9, the arrangement for detecting further includes 4 He of first light source
Second light source 6；4 transverse direction of first light source is used for towards printing nozzle, and relatively with first camera 5 in institute
When stating longitudinal detecting image of the ink droplet drops of the first camera 5 shooting printing nozzle ink droplet, emit illumination to printing nozzle；Institute
6 longitudinal direction of second light source is stated towards printing nozzle, and opposite with the second camera 7, in the second camera 7
When shooting the lateral detecting image of the ink droplet drops of printing nozzle, emit illumination to printing nozzle.
The drop placement of above-mentioned printing nozzle corrects system, shoots detecing for the ink droplet drops of printing nozzle ink droplet in camera
When altimetric image, emit illumination to printing nozzle, the effect of printing nozzle shooting image can be promoted, then promotes what detecting obtained
The longitudinal off-centre angulation of the ink droplet drops of printing nozzle and the accuracy of lateral shift angle.And it is outer to make system be not required to dependence
Portion's light conditions can be run, the adaptability that lifting system uses.
In one embodiment, as shown in Figure 8 and Figure 9, the drop placement of the printing nozzle of the embodiment of the present invention corrects system
System further includes the ink titration cell 8 being placed in below the printing nozzle, the ink droplet for access printing nozzle drippage.
The drop placement of above-mentioned printing nozzle corrects system, the ink droplet dripped by 8 access printing nozzle of ink titration cell,
The ink droplet that can be dripped to avoid printing nozzle pollutes the environment.
In summary the drop placement of the printing nozzle of each embodiment corrects system, as shown in figure 8, in one embodiment
In, the drop placement correction system of printing nozzle includes fill ink element 1 (Ink stick), 2 (Print of inkjet print head
Head), there is a number of nozzle in inkjet print head 2.Nozzle can drip ink droplet 3.5 needle of first light source 4 and the first camera
Ink droplet is detected in longitudinal deviation angle.Second light source 6 and second camera 7 are directed to the deviation angle of ink droplet horizontally
Degree is detected.Ink titration cell 8 is equipped with below inkjet print head 2.First light source 4, the first camera 5, second light source 6 and
Two cameras 7 are connect with computer 9.
In order to further illustrate the structure of ink droplet titration correction system in above-mentioned hair embodiment, as shown in figure 9, being directed to ink droplet
The schematic top plan view of titration correction system is illustrated: first light source 4 and the first camera 5 are relatively arranged on inkjet print head 2
Two sides are detected for ink droplet in longitudinal deviation angle.Second light source 6 and second camera 7 are relatively arranged on ink-jet and beat
2 two sides of head are printed, are detected for the deviation angle of ink droplet horizontally.
In one embodiment, a kind of computer equipment is provided, which can be terminal, internal structure
Figure can be as shown in Figure 10.The computer equipment includes the processor connected by system bus, memory, network interface, shows
Display screen and input unit.Wherein, the processor of the computer equipment is for providing calculating and control ability.The computer equipment
Memory includes non-volatile memory medium, built-in storage.The non-volatile memory medium is stored with operating system and computer
Program.The built-in storage provides environment for the operation of operating system and computer program in non-volatile memory medium.The meter
The network interface for calculating machine equipment is used to communicate with external terminal by network connection.When the computer program is executed by processor
To realize a kind of drop placement bearing calibration of printing nozzle.The display screen of the computer equipment can be liquid crystal display or
Electric ink display screen, the input unit of the computer equipment can be the touch layer covered on display screen, be also possible to calculate
Key, trace ball or the Trackpad being arranged on machine equipment shell can also be external keyboard, Trackpad or mouse etc..
It will be understood by those skilled in the art that structure shown in Figure 10, only part relevant to the present invention program
The block diagram of structure, does not constitute the restriction for the computer equipment being applied thereon to the present invention program, and specific computer is set
Standby may include perhaps combining certain components or with different component layouts than more or fewer components as shown in the figure.
In one embodiment, a kind of computer equipment is provided, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, processor perform the steps of when executing computer program
Detect the longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle；Wherein, the longitudinal direction is
By the moving direction of printing substrate, the transverse direction is the moving direction of printing nozzle；
The vertical misalignment distance of the ink droplet drops of printing nozzle is determined according to the longitudinal off-centre angulation, and according to the cross
The lateral shift distance of the ink droplet drops of printing nozzle is determined to deviation angle；
It is laterally inclined apart from what is determined apart from the vertical misalignment compensation rate and lateral shift determined according to the vertical misalignment
Compensation rate is moved, correction is compensated to the ink droplet drops position of the printing nozzle.
Above-mentioned computer equipment, when processor executes program, by realizing step as above, so as to being printed
Before substrate carries out inkjet printing, by longitudinal off-centre angulation and the lateral shift angle of detecting the ink droplet drops of printing nozzle
Degree calculates and obtains corresponding vertical misalignment distance with lateral shift distance, vertical misalignment distance for ink droplet and laterally partially
Move distance compensate correction, so as to avoid inkjet print head in use, the ink droplet drops position of printing nozzle
Offset is set, and causes ink droplet drops except pixel hole, promotes the accuracy of printing nozzle printing.
In one embodiment, it is also performed the steps of when processor executes computer program
It obtains longitudinal detecting image of the ink droplet drops of each printing nozzle on print head and laterally detects image；
According to the ink droplet of longitudinal detecting each printing nozzle of image recognition in longitudinal longitudinal off-centre angulation, and according to
The ink droplet of the laterally detecting each printing nozzle of image recognition is in lateral lateral shift angle.
In one embodiment, it is also performed the steps of when processor executes computer program
Obtain printing nozzle and by the distance between printing substrate；
According to the longitudinal off-centre angulation of the ink droplet drops of each printing nozzle, the longitudinal direction of the ink droplet drops of printing nozzle is determined
Peak excursion angle determines the vertical of the ink droplet drops of printing nozzle according to the distance and longitudinal peak excursion angle
To offset distance；
According to the lateral shift angle of the ink droplet drops of each printing nozzle, the transverse direction of the ink droplet drops of printing nozzle is determined
Peak excursion angle determines the cross of the ink droplet drops of printing nozzle according to the distance and the lateral peak excursion angle
To offset distance.
In one embodiment, it is also performed the steps of when processor executes computer program
The vertical misalignment distance of the ink droplet drops of printing nozzle is obtained according to following formula:
Δ X1=S × tan αmax
In above formula, Δ X1 is printing nozzle in longitudinal offset distance, αmaxFor the longitudinal off-centre angulation of each printing nozzle
Maximum value, S be printing nozzle with by the distance between printing substrate.
In one embodiment, it is also performed the steps of when processor executes computer program
The lateral shift distance of the ink droplet drops of printing nozzle is obtained according to following formula:
Δ X2=S × tan βmax
In above formula, Δ X2 is printing nozzle in lateral offset distance, βmaxFor the lateral shift angle of each printing nozzle
Maximum value, S be printing nozzle with by the distance between printing substrate.
In one embodiment, it is also performed the steps of when processor executes computer program
To before carrying out inkjet printing by printing substrate, printing nozzle longitudinal direction ink droplet is arranged according to longitudinal offset distance
The eccentric traveling distance of drippage, and according to the eccentric traveling distance of lateral offset distance setting printing nozzle transverse direction ink droplet drops, it is right
The ink droplet drops position of the printing nozzle is corrected.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, is calculated
Machine program performs the steps of when being executed by processor
Detect the longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle；Wherein, the longitudinal direction is
By the moving direction of printing substrate, the transverse direction is the moving direction of printing nozzle；
The vertical misalignment distance of the ink droplet drops of printing nozzle is determined according to the longitudinal off-centre angulation, and according to the cross
The lateral shift distance of the ink droplet drops of printing nozzle is determined to deviation angle；
It is laterally inclined apart from what is determined apart from the vertical misalignment compensation rate and lateral shift determined according to the vertical misalignment
Compensation rate is moved, correction is compensated to the ink droplet drops position of the printing nozzle.
Above-mentioned computer readable storage medium, the computer program of storage, by realizing step as above, so as to
To before carrying out inkjet printing by printing substrate, pass through the longitudinal off-centre angulation and transverse direction of the ink droplet drops of detecting printing nozzle
Deviation angle calculates and obtains corresponding vertical misalignment distance with lateral shift distance, vertical misalignment distance for ink droplet and
Lateral shift distance compensates correction, so as to avoid inkjet print head in use, the ink droplet of printing nozzle
Dripping position offset, and cause ink droplet drops except pixel hole, promote the accuracy of printing nozzle printing.
In one embodiment, it is also performed the steps of when computer program is executed by processor
It obtains longitudinal detecting image of the ink droplet drops of each printing nozzle on print head and laterally detects image；
According to the ink droplet of longitudinal detecting each printing nozzle of image recognition in longitudinal longitudinal off-centre angulation, and according to
The ink droplet of the laterally detecting each printing nozzle of image recognition is in lateral lateral shift angle.
In one embodiment, it is also performed the steps of when computer program is executed by processor
Obtain printing nozzle and by the distance between printing substrate；
According to the longitudinal off-centre angulation of the ink droplet drops of each printing nozzle, the longitudinal direction of the ink droplet drops of printing nozzle is determined
Peak excursion angle determines the vertical of the ink droplet drops of printing nozzle according to the distance and longitudinal peak excursion angle
To offset distance；
According to the lateral shift angle of the ink droplet drops of each printing nozzle, the transverse direction of the ink droplet drops of printing nozzle is determined
Peak excursion angle determines the cross of the ink droplet drops of printing nozzle according to the distance and the lateral peak excursion angle
To offset distance.
In one embodiment, it is also performed the steps of when computer program is executed by processor
The vertical misalignment distance of the ink droplet drops of printing nozzle is obtained according to following formula:
Δ X1=S × tan αmax
In above formula, Δ X1 is printing nozzle in longitudinal offset distance, αmaxFor the longitudinal off-centre angulation of each printing nozzle
Maximum value, S be printing nozzle with by the distance between printing substrate.
In one embodiment, it is also performed the steps of when computer program is executed by processor
The lateral shift distance of the ink droplet drops of printing nozzle is obtained according to following formula:
Δ X2=S × tan βmax
In above formula, Δ X2 is printing nozzle in lateral offset distance, βmaxFor the lateral shift angle of each printing nozzle
Maximum value, S be printing nozzle with by the distance between printing substrate.
In one embodiment, it is also performed the steps of when computer program is executed by processor
To before carrying out inkjet printing by printing substrate, printing nozzle longitudinal direction ink droplet is arranged according to longitudinal offset distance
The eccentric traveling distance of drippage, and according to the eccentric traveling distance of lateral offset distance setting printing nozzle transverse direction ink droplet drops, it is right
The ink droplet drops position of the printing nozzle is corrected.
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, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein,
To any reference of memory, storage, database or other media used in each embodiment provided by the present invention,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM (ESDRAM), synchronization link (Synchlink), DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield 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 (12)
1. a kind of drop placement bearing calibration of printing nozzle, which is characterized in that the described method includes:
Detect the longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of printing nozzle；Wherein, the longitudinal direction is to be beaten
The moving direction of substrate is printed, the transverse direction is the moving direction of printing nozzle；
The vertical misalignment distance of the ink droplet drops of printing nozzle is determined according to the longitudinal off-centre angulation, and inclined according to the transverse direction
Move the lateral shift distance that angle determines the ink droplet drops of printing nozzle；
The lateral shift that the vertical misalignment compensation rate and lateral shift distance determined according to the vertical misalignment distance determines is mended
The amount of repaying compensates correction to the ink droplet drops position of the printing nozzle.
2. the drop placement bearing calibration of printing nozzle according to claim 1, which is characterized in that the detecting printing spray
The longitudinal off-centre angulation and lateral shift angle of the ink droplet drops of mouth include:
It obtains longitudinal detecting image of the ink droplet drops of each printing nozzle on print head and laterally detects image；
According to the ink droplet of longitudinal detecting each printing nozzle of image recognition in longitudinal longitudinal off-centre angulation, and according to described
Laterally the ink droplet of the detecting each printing nozzle of image recognition is in lateral lateral shift angle.
3. the drop placement bearing calibration of printing nozzle according to claim 1, which is characterized in that described according to described vertical
The vertical misalignment distance of the ink droplet drops of printing nozzle is determined to deviation angle, and is determined and printed according to the lateral shift angle
The lateral shift distance of the ink droplet drops of nozzle includes:
Obtain printing nozzle and by the distance between printing substrate；
According to the longitudinal off-centre angulation of the ink droplet drops of each printing nozzle, the longitudinal maximum of the ink droplet drops of printing nozzle is determined
Deviation angle determines the longitudinal inclined of the ink droplet drops of printing nozzle according to the distance and longitudinal peak excursion angle
Move distance；
According to the lateral shift angle of the ink droplet drops of each printing nozzle, the laterally maximum of the ink droplet drops of printing nozzle is determined
Deviation angle determines the laterally inclined of the ink droplet drops of printing nozzle according to the distance and the lateral peak excursion angle
Move distance.
4. the drop placement bearing calibration of printing nozzle according to claim 3, which is characterized in that the printing nozzle
The vertical misalignment distance and lateral shift distance of ink droplet drops are obtained according to following formula:
Δ X1=S × tan αmax
Δ X2=S × tan βmax
In above formula, Δ X1 is printing nozzle in longitudinal offset distance, and Δ X2 is printing nozzle in lateral offset distance, αmax
For the maximum value of the longitudinal off-centre angulation of each printing nozzle, βmaxFor the maximum value of the lateral shift angle of each printing nozzle,
S is for printing nozzle and by the distance between printing substrate.
5. the drop placement bearing calibration of printing nozzle according to any one of claims 1 to 4, which is characterized in that described
The lateral shift compensation that the vertical misalignment offset and lateral shift distance determined according to the vertical misalignment distance determines
Value, compensating correction to the ink droplet drops position of the printing nozzle includes:
To before carrying out inkjet printing by printing substrate, printing nozzle longitudinal direction ink droplet drops are arranged according to longitudinal offset distance
Eccentric traveling distance, and according to the eccentric traveling distance of lateral offset distance setting printing nozzle transverse direction ink droplet drops, to described
The ink droplet drops position of printing nozzle is corrected.
6. a kind of drop placement means for correcting of printing nozzle, which is characterized in that described device includes:
Deviation angle detecting module, for detecting deviation angle of the ink droplet in longitudinal deviation angle and transverse direction of printing nozzle
Degree；Wherein, the longitudinal direction is by the moving direction of printing substrate, and the transverse direction is the moving direction of printing nozzle；
Offset distance obtains module, for the deviation angle according to longitudinal deviation angle and transverse direction, determines printing spray
Offset distance of the mouth in longitudinal offset distance and transverse direction；
Offset correction module, for the offset distance according to longitudinal offset distance and transverse direction, to the printing nozzle
Ink droplet drops position compensate correction.
7. the drop placement of printing nozzle a kind of corrects system, which is characterized in that the system comprises: arrangement for detecting and with detect
Survey the processor of device connection；
The arrangement for detecting is used to detect the image for obtaining printing nozzle ink droplet drops；
The processor is used to execute the step of drop placement bearing calibration such as the printing nozzle of any one of claim 1 to 5.
8. the drop placement of printing nozzle according to claim 7 corrects system, which is characterized in that the arrangement for detecting packet
Include the first camera and second camera；
The first camera transverse direction is towards printing nozzle, longitudinal detecting figure of the ink droplet drops for shooting printing nozzle
Picture；
The second camera longitudinal direction is towards printing nozzle, the lateral detecting figure of the ink droplet drops for shooting printing nozzle
Picture.
9. the drop placement of printing nozzle according to claim 8 corrects system, which is characterized in that the arrangement for detecting is also
Including first light source and second light source；
The first light source transverse direction is and opposite with first camera towards printing nozzle, for taking the photograph described first
When detecting image as the longitudinal direction of the ink droplet drops of head shooting printing nozzle ink droplet, emit illumination to printing nozzle；
The second light source longitudinal direction is and opposite with the second camera towards printing nozzle, for taking the photograph described second
When detecting image as the transverse direction of the ink droplet drops of head shooting printing nozzle, emit illumination to printing nozzle.
10. the drop placement of printing nozzle according to any one of claims 7 to 9 corrects system, which is characterized in that also wrap
The ink titration cell being placed in below the printing nozzle is included, the ink droplet for access printing nozzle drippage.
11. 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
The step of drop placement bearing calibration of printing nozzle described in 5 any one.
12. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of drop placement bearing calibration of printing nozzle described in any one of claims 1 to 5 is realized when being executed by processor.
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| CN201810348782.6A CN110077112B (en) | 2018-04-18 | 2018-04-18 | Method, apparatus and system for drop offset correction of print nozzles |
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| CN112339433A (en) * | 2019-12-04 | 2021-02-09 | 广东聚华印刷显示技术有限公司 | Method, system, equipment and storage medium for nozzle alignment compensation of ink-jet printing device |
| CN112339433B (en) * | 2019-12-04 | 2021-11-23 | 广东聚华印刷显示技术有限公司 | Method, system, equipment and storage medium for nozzle alignment compensation of ink-jet printing device |
| CN113752698A (en) * | 2021-08-31 | 2021-12-07 | 华中科技大学 | Ink drop point precision control method and system for ink jet printing |
| CN113752698B (en) * | 2021-08-31 | 2022-07-12 | 华中科技大学 | Ink drop point precision control method and system for ink jet printing |
| CN114536975A (en) * | 2022-02-28 | 2022-05-27 | 华中科技大学 | Method and device for detecting positioning precision of ink drop point in ink-jet printing |
| CN114683731A (en) * | 2022-03-03 | 2022-07-01 | 深圳市华星光电半导体显示技术有限公司 | Printing method, printing system, and printing apparatus |
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