JP2016185526A - Liquid discharge device drive setting method and drive setting program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid discharge device drive setting method that can bring arrangement amounts of liquid respectively arranged in multiple arrangement areas close to preset target arrangement amount.SOLUTION: The liquid discharge device drive setting method selects a first arrangement area and a second arrangement area from the multiple arrangement areas and changing a drive condition of a first nozzle that is a nozzle corresponding to a first arrangement area to a second drive condition from a first drive condition to change a liquid arrangement amount in the first arrangement area to a third arrangement amount from a first arrangement amount, while changing a drive condition of a second nozzle that is a nozzle corresponding to a second arrangement area to the first drive condition from the second drive condition to change a liquid arrangement amount in the second arrangement area to a fourth arrangement amount from a second arrangement amount.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a drive setting method and a drive setting program for a liquid material discharge apparatus.

  In recent years, a liquid containing a functional material is discharged from a plurality of nozzles onto a substrate, which is an object to be discharged, and after a predetermined amount of liquid is placed in an arrangement region provided on the substrate, it is dried (solidified). A method for forming a thin film has been proposed. Typical examples of the thin film include a color filter of a liquid crystal display panel, a light emitting layer of an organic EL panel, and a metal wiring of a semiconductor device.

  In such a method, in order to form a high-quality thin film, the discharge amount of the liquid material discharged from each nozzle is required to be uniform among the nozzles. This is because the variation in the discharge amount between the nozzles causes uneven arrangement of the liquid material and hinders the formation of a homogeneous thin film.

  Therefore, it is necessary to measure the variation in the discharge amount between the nozzles and set a driving condition (for example, a voltage value) for compensating (correcting) the variation. In this case, it is ideal that independent drive conditions can be set for each nozzle.

  However, depending on the configuration of an ejection head having a plurality of nozzles (nozzle arrays) and a control unit that controls driving of the ejection head, there are restrictions on the drive conditions that can be actually set. Further, since the variation in the discharge amount between nozzles varies for each nozzle array and each discharge head, it is difficult to appropriately set the driving conditions for each nozzle by a uniform method for each nozzle.

  Therefore, as a technique to compensate for the variation in the discharge amount between nozzles, the discharge amount based on a predetermined drive condition of a plurality of nozzles is obtained, and each nozzle is divided into a plurality of groups based on the difference in discharge amount (variation) of each nozzle. A technique for classifying and finding an appropriate condition for reducing a difference in the discharge amount of each nozzle for each group and setting a corrected driving condition for each group based on the appropriate condition has been proposed (for example, Patent Documents). 1).

  In the technique described in Patent Document 1 below, by setting the driving conditions corrected for each group described above, liquids arranged in each of the plurality of arrangement regions without setting independent driving conditions for each nozzle. It is possible to make the amount of body arrangement uniform.

JP 2008-276088 A

  By the way, the smaller the arrangement area (for example, pixel) described above, the smaller the number of nozzles selected for discharging the liquid material in the arrangement area and the number of ejections of each nozzle. In this case, the above-described nozzles may be classified into a plurality of groups, and the effect of setting the drive conditions corrected for each group may be reduced.

  That is, the smaller the number of nozzles selected in each arrangement region and the number of ejections of each nozzle, the smaller the amount of liquid material arranged in each arrangement region. In this case, the variation in the arrangement amount of the liquid material arranged in each arrangement region becomes large, and it becomes difficult to approach the target arrangement amount set in advance.

  For example, when nozzles having a large discharge amount are concentrated in one arrangement area, the arrangement quantity of the liquid material arranged in the arrangement area is larger than the arrangement quantity of the liquid material arranged in the other arrangement area. In this case, it is difficult to equalize the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions, which causes the above-described uneven arrangement of the liquid material.

  One aspect of the present invention has been proposed in view of such conventional circumstances, and brings the amount of liquid disposed in each of a plurality of placement regions close to a preset target placement amount. Another object is to provide a drive setting method and a drive setting program for a liquid material discharge apparatus.

  According to one aspect of the present invention, there is provided a liquid material ejection apparatus drive setting method, in a liquid material ejection apparatus including an ejection head having a plurality of nozzles, scanning that moves the ejection head relative to an ejection object. While performing a predetermined amount of liquid material for each of a plurality of arrangement regions provided in the discharge target by discharging the liquid material from a plurality of nozzles, for each of the plurality of nozzles, A method of setting a drive of a liquid material ejection apparatus for setting at least one of a plurality of drive conditions, wherein A step sets at least one of the plurality of drive conditions for each of the plurality of nozzles; A B step for selecting and setting at least one corresponding nozzle that discharges the liquid material relative to each other in the scanning with respect to each of the plurality of arrangement regions; Of the liquid material arranged in each of the plurality of arrangement regions based on the driving condition set for each of the plurality of nozzles in the top and the corresponding nozzle set for each of the plurality of arrangement regions in step B. A C step for obtaining an arrangement amount; a D step for selecting a first arrangement area and a second arrangement area from a plurality of arrangement areas; and a driving condition for a first nozzle that is a corresponding nozzle in the first arrangement area. E step to change the first driving condition set for the first nozzle in the A step to the second driving condition set for the second nozzle that is the corresponding nozzle in the second arrangement region; F step of changing the second nozzle driving condition from the second driving condition set for the second nozzle in the A step to the first driving condition, and the first nozzle acquired in the C step. Arrangement of The arrangement amount of the liquid material in the region is set as the first arrangement amount, the arrangement amount of the liquid material in the second arrangement region acquired in the C step is set as the second arrangement amount, and the driving condition of the first nozzle is set in the E step. By changing from the first driving condition to the second driving condition, the arrangement amount of the liquid material in the first arrangement region is changed from the first arrangement amount to the third arrangement amount. By changing the driving condition from the second driving condition to the first driving condition, the arrangement amount of the liquid material in the second arrangement region is changed from the second arrangement quantity to the fourth arrangement quantity. .

  According to this method, a first arrangement area and a second arrangement area are selected from a plurality of arrangement areas. Then, by changing the driving condition of the first nozzle, which is the corresponding nozzle in the first arrangement area, from the first driving condition to the second driving condition, the arrangement amount of the liquid material in the first arrangement area is changed to the first quantity. The arrangement amount from 1 to the third arrangement amount. On the other hand, by changing the driving condition of the second nozzle, which is the corresponding nozzle in the second arrangement area, from the second driving condition to the first driving condition, the arrangement amount of the liquid material in the second arrangement area is changed to the first one. The arrangement amount from 2 to the fourth arrangement amount. Thereby, the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions can be brought close to the preset target arrangement amount. Therefore, according to this method, it is possible to make the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions uniform even when the arrangement amount of the liquid material is reduced.

  Further, in the drive setting method for the liquid material discharge device, in the step D, the first arrangement area is set so that the first arrangement quantity is different from the target arrangement quantity preset for each of the plurality of arrangement areas. A method may be used in which the second arrangement area is selected so that the second arrangement amount is different from the target arrangement amount.

  According to this method, the arrangement amount of the liquid material arranged in each of the first arrangement region and the second arrangement region selected from the plurality of arrangement regions can be brought close to the target arrangement amount efficiently.

  Further, in the drive setting method for the liquid material discharge device, in the D step, the first arrangement amount is set such that the difference between the third arrangement amount and the target arrangement amount is smaller than the difference between the first arrangement amount and the target arrangement amount. The method of selecting the arrangement area of the above may be used.

  According to this method, the arrangement amount of the liquid material arranged in the first arrangement region can be brought close to the target arrangement amount.

  Further, in the drive setting method for the liquid material discharge device, in the step D, the second arrangement amount is set such that the difference between the fourth arrangement amount and the target arrangement amount is smaller than the difference between the second arrangement amount and the target arrangement amount. The method of selecting the arrangement area of the above may be used.

  According to this method, the arrangement amount of the liquid material arranged in the second arrangement region can be brought close to the target arrangement amount.

  Further, the liquid material ejection device drive setting method may be a method of selecting the first arrangement region so that the difference between the first arrangement amount and the target arrangement amount is maximized in step D. .

  According to this method, the arrangement amount of the liquid material arranged in the first arrangement region selected from the plurality of arrangement regions can be brought closer to the target arrangement amount more efficiently.

  Further, in the drive setting method for the liquid material discharge device, in step D, the magnitude relationship between the first arrangement amount and the target arrangement amount and the magnitude relationship between the second arrangement amount and the target arrangement amount are reversed. As described above, a method of selecting the first arrangement area and the second arrangement area may be used.

  According to this method, the arrangement amount of the liquid material arranged in each of the first arrangement region and the second arrangement region selected from the plurality of arrangement regions can be brought closer to the target arrangement amount more efficiently.

  Further, in the drive setting method for the liquid material discharge device, when the difference between the fourth arrangement amount and the target arrangement amount is larger than the difference between the first arrangement amount and the target arrangement amount, the D step and the E A method of repeating the step and the F step in this order may be used.

  According to this method, the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions can be made closer to the target arrangement amount.

  In the drive setting method for the liquid material ejection device, the first arrangement area and the second arrangement area are adjacent to each other and the first arrangement quantity and the second arrangement quantity are different from each other in step D. Alternatively, a method of selecting the first arrangement area and the second arrangement area may be used.

  According to this method, the arrangement amount of the liquid material arranged between the first arrangement region and the second arrangement region adjacent to each other can be brought close to the target arrangement amount.

  Further, in the drive setting method for the liquid material discharge device, the first arrangement area and the second arrangement area adjacent to each other so that the difference between the first arrangement quantity and the second arrangement quantity is maximized in the D step. A method of selecting an arrangement area may be used.

  According to this method, the arrangement amount of the liquid material arranged in each of the first arrangement region and the second arrangement region adjacent to each other can be efficiently brought close.

  Further, in the drive setting method for the liquid material discharge device, in step D, the difference between the third arrangement amount and the fourth arrangement amount is smaller than the difference between the first arrangement amount and the second arrangement amount. As such, a method of selecting the first arrangement area and the second arrangement area adjacent to each other may be used.

  According to this method, the arrangement amount of the liquid material arranged in the first arrangement region and the second arrangement region adjacent to each other can be made close to each other. It is possible to suppress.

  Further, in the drive setting method for the liquid material discharge device, in step A, the plurality of nozzles are divided into a plurality of groups each having a nozzle group including a plurality of nozzles for which the same drive conditions are set, and each of the plurality of groups Alternatively, a driving condition may be set for each group based on the statistical value of the discharge amount of each nozzle in the nozzle group.

  According to this method, even when the driving condition is set for each group, the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions can be brought close to the preset target arrangement amount.

  Further, in the drive setting method of the liquid material discharge device, in step B, a plurality of corresponding nozzles that are opposed to each other in the scanning and discharge the liquid material are selected from the plurality of nozzles. In step C, the sum of the discharge amounts of the plurality of corresponding nozzles in each of the plurality of arrangement regions is obtained as the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions. One corresponding nozzle among the plurality of corresponding nozzles set in the arrangement area is selected as the first nozzle, and one corresponding nozzle among the plurality of corresponding nozzles set in the second arrangement area is selected as the second nozzle. The method of selecting as a nozzle may be used.

  According to this method, even when a plurality of corresponding nozzles are selected from a plurality of nozzles and set for each of the plurality of arrangement regions, the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions is previously set. It is possible to approach the set target arrangement amount.

  Further, in the drive setting method for the liquid material discharge device, a corresponding nozzle for which a drive condition with the largest discharge amount is set is selected as the first nozzle from a plurality of corresponding nozzles in the first arrangement region. There may be.

  According to this method, the arrangement amount of the liquid material arranged in the first arrangement region can be brought close to the target arrangement amount efficiently.

  Further, in the drive setting method for the liquid material discharge device, a corresponding nozzle for which a drive condition with the smallest discharge amount is set is selected as the second nozzle from a plurality of corresponding nozzles in the second arrangement region. There may be.

  According to this method, the arrangement amount of the liquid material arranged in the second arrangement region can be brought close to the target arrangement amount efficiently.

  Further, in the drive setting method of the liquid material discharge device, the liquid material discharge device has a configuration in which a plurality of the discharge heads are arranged side by side, and the first nozzle and the plurality of nozzles included in the same discharge head A method of selecting the second nozzle may be used.

  According to this method, the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions is brought close to the target arrangement amount in a state where the discharge amount of the liquid material ejected from the plurality of nozzles for each ejection head is stabilized. be able to.

  According to another aspect of the present invention, there is provided a drive setting program for a liquid material discharge apparatus that moves a discharge head relative to a discharge target in a liquid material discharge apparatus including a discharge head having a plurality of nozzles. By discharging a liquid material from a plurality of nozzles while performing scanning, when a predetermined amount of the liquid material is disposed in each of a plurality of arrangement regions provided on the discharge target, each of the plurality of nozzles is disposed. A liquid material ejection apparatus drive setting program for setting at least one of a plurality of drive conditions, wherein the liquid material ejection apparatus drive setting method is executed.

  According to this program, it is possible to execute the drive setting method of the liquid material discharge apparatus that can bring the liquid material arrangement amount arranged in each of the plurality of arrangement regions close to a preset target arrangement amount. .

1 is a perspective view showing a schematic configuration of a liquid material discharge apparatus according to an embodiment of the present invention. It is a top view which shows the arrangement configuration of each discharge head which comprises a head unit. It is a top view which shows the positional relationship of the scanning locus | trajectory of the nozzle with which an ejection head is provided, and a board | substrate. It is a circuit diagram which shows schematic structure of the electric circuit with which a liquid discharge apparatus is provided. It is a graph which shows the timing chart of the drive signal at the time of driving an ejection head, and a control signal. It is a flowchart for demonstrating the drive setting method of the liquid discharge apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows schematic structure of a discharge amount measuring system. It is a flowchart which shows the setting procedure of COM. It is a graph which shows the relationship between distribution of the discharge amount for every nozzle, and group classification. 6 is a flowchart for explaining a drive setting method of the liquid material discharge apparatus according to the present invention. It is a schematic diagram which shows the positional relationship of the nozzle with which an ejection head is provided, and the arrangement | positioning area | region provided on the board | substrate. It is a graph which shows the change of the liquid amount in a pixel in an Example.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In addition, this invention is not limited to the following embodiment, In the range which does not change the summary, it can change suitably and can implement. Further, in the drawings used in the following description, in order to make each component easy to see, the component may be schematically shown, and depending on the component, the dimensional scale may be different.

(Liquid material discharge device)
First, as one embodiment of the present invention, for example, a specific configuration and operation of a liquid discharge apparatus 200 shown in FIG. 1 will be described. FIG. 1 is a perspective view showing a schematic configuration of the liquid material discharge device 200.

  As shown in FIG. 1, the liquid material discharge device 200 is mainly composed of a pair of guide rails 201 provided linearly, and an air slider and a linear motor (both not shown) provided inside the guide rail 201. And a main scanning moving table 203 that moves in the scanning direction. In addition, the liquid material discharge device 200 includes a pair of guide rails 202 linearly provided so as to be orthogonal to the guide rails 201 above the guide rails 201, an air slider and a linear provided inside the guide rails 202. And a sub-scanning moving base 204 that moves in the sub-scanning direction by a motor (both not shown).

  On the main scanning moving table 203, a stage 205 for placing a substrate P as an ejection target is provided. The stage 205 is configured to fix the substrate P in an adsorbed state. In addition, a rotation mechanism 207 provided between the stage 205 and the main scanning moving table 203 can accurately align the reference axis in the substrate P with the main scanning direction and the sub scanning direction.

  The sub-scanning moving table 204 includes a carriage 209 that is attached in a suspended manner via a rotation mechanism 208. The carriage 209 includes a head unit 10 including a plurality of ejection heads 11 and 12 (not shown in FIG. 1) for ejecting a liquid material, which will be described later, and a control circuit board 30 (which controls driving of the ejection heads 11 and 12). (Not shown in FIG. 1). Further, each of the ejection heads 11 and 12 is connected to a liquid supply mechanism (not shown) for supplying a liquid.

  FIG. 2 is a plan view showing an arrangement configuration of the ejection heads 11 and 12 constituting the head unit 10. As shown in FIG. 2, each of the ejection heads 11 and 12 constituting the head unit 10 has a plurality of nozzles n for ejecting a liquid material.

  In this embodiment, the case where the light emitting layer of an organic electroluminescent panel is formed is illustrated. Therefore, each of the ejection heads 11 and 12 ejects a liquid material containing an organic EL light emitting material corresponding to each color light emitting layer of red (R), green (G), and blue (B). Further, the one ejection head 11 and the other ejection head 12 are arranged so as to be displaced from each other in the sub-scanning direction, and are in a relationship of complementing the ejectable range.

  A plurality (60 in this embodiment) of nozzles n in each of the ejection heads 11 and 12 constitute nozzle arrays 21A and 21B arranged in a line at a predetermined pitch (for example, 180 dpi). The arrangement direction of the nozzles n constituting the nozzle arrays 21A and 21B coincides with the sub-scanning direction. The nozzles n constituting the nozzle arrays 21A and 21B are arranged in a staggered manner.

  The discharge heads 11 and 12 are provided with cavities (not shown) as liquid chambers communicating with the respective nozzles n. Each cavity is provided with a piezoelectric element 16 (not shown in FIG. 2) as a drive element for driving the movable wall to vary the volume. In the ejection heads 11 and 12, by supplying a drive signal (drive voltage) to the piezoelectric element 16 and controlling the fluid pressure in the cavity, it is possible to eject droplets (liquid material) from the nozzle n. Yes.

  Here, as an example of the operation of the ejection heads 11 and 12 included in the liquid material ejection device 200, the operation when the light emitting layer of the organic EL panel is formed will be described with reference to FIG. FIG. 3 is a plan view showing the positional relationship between the scanning trajectory of the nozzle n provided in the ejection heads 11 and 12 and the substrate P.

  As shown in FIG. 3, each nozzle n draws a scanning locus with a predetermined pitch (for example, 360 dpi) continuous with respect to the substrate P when the ejection heads 11 and 12 are scanned in the main scanning direction with respect to the substrate P.

  At this time, several (n3 in this embodiment) nozzles n of the end portions of the nozzle arrays 21A and 21B are dummy nozzles (not shown) that are not used in view of the peculiarities of the characteristics. Yes. The scanning area applied to the dummy nozzle provided in one ejection head 11 is complemented by the nozzle n provided in the other ejection head 12. In addition, the scanning area applied to the dummy nozzle provided in the other ejection head 12 is complemented by the nozzle n of one ejection head 11.

  On the substrate P, a bank 51 that defines an arrangement region 50 corresponding to each pixel of the organic EL panel is formed in advance using a photosensitive resin or the like. In this case, with respect to the scanning trajectory, there are nozzles n that can be applied to the arrangement region 50 and nozzles n that cannot be applied. However, the arrangement of the liquid material in the arrangement region 50 is the liquid material from the nozzle n that can apply to the arrangement region 50 This is selectively performed by discharging.

  Here, in FIG. 3, nozzle numbers A1 to A5 are assigned to the nozzle arrays 21A and 21B included in one discharge head 11 and the nozzle arrays 21A and 21B included in the other discharge head 12, respectively. , B1 to B5, and nozzle numbers C49 to C54 and D49 to D54.

  This nozzle number is a serial number indicating the arrangement order of the nozzles n in the arrangement direction of the nozzle arrays 21A and 21B. In the present embodiment, 1 to 54 nozzle numbers excluding dummy nozzles can be assigned to one nozzle array.

  In FIG. 3, the nozzles n having the nozzle numbers D53, C54, D54, A1, and B1 can discharge the liquid material to the same arrangement region 50 in an appropriate period during scanning. Further, since the nozzle n of nozzle numbers C50, C53, A2 and A5 has a scanning locus on the bank 51, the liquid material is not discharged during the entire scanning period. Such discharge / non-discharge control for each nozzle n is performed by switching the supply of a drive signal to the piezoelectric element 16 corresponding to each nozzle n described later.

  The configuration of the liquid material discharge device 200 is not limited to that of the above embodiment. For example, the arrangement direction of the nozzle arrays 21A and 21B can be tilted from the sub-scanning direction so that the pitch of the scanning trajectory of the nozzles n is narrower than the pitch between the nozzles n in the nozzle arrays 21A and 21B. . Further, the number of the discharge heads 11 and 12 in the head unit 10 and the arrangement configuration thereof can be appropriately changed. Further, as a driving method of the ejection heads 11 and 12, for example, a so-called thermal method in which a heating element is provided in the cavity can be adopted.

  Next, the configuration and operation of a specific electric circuit provided in the liquid material discharge device 200 will be described with reference to FIGS. FIG. 4 is a circuit diagram showing a schematic configuration of an electric circuit provided in the liquid material discharge device 200. FIG. 5 is a graph showing a timing chart of drive signals and control signals when driving the ejection heads 11 and 12.

  As shown in FIG. 4, the ejection heads 11 and 12 include a piezoelectric element 16 provided for each nozzle n (not shown in FIG. 4) of each nozzle array 21 </ b> A and 21 </ b> B, and a drive signal to each piezoelectric element 16. A switching circuit 17 for switching supply / non-supply of (COM) and a drive line for selecting drive signal supply lines (hereinafter referred to as COM lines) COM1 to COM4 for supply to each piezoelectric element 16 And a signal selection circuit 18. Further, the ejection heads 11 and 12 are electrically connected to a control circuit board 30 constituting a control unit.

  The control circuit board 30 includes D / A converters (DACs) 31A to 31D that generate independent drive signals (COM), and slew rate data (hereinafter referred to as drive signal (COM)) generated by the D / A converters 31A to 31D. The waveform data selection circuit 32 includes a storage memory for WD1 to WD4 and a data memory 33 for storing discharge control data received from the outside. The drive signals generated by the D / A converters 31A to 31D are output to the COM lines COM1 to COM4 in the control circuit board 30, respectively.

  In each nozzle array 21A, 21B, one electrode 16c of the piezoelectric element 16 is connected to the ground line GND of the D / A converters 31A to 31D. The other electrode (hereinafter referred to as segment electrode) 16s of the piezoelectric element 16 is connected to the COM lines COM1 to COM4 via the switching circuit 17 and the drive signal selection circuit 18. Further, the switching circuit 17, the drive signal selection circuit 18 and the waveform data selection circuit 32 are inputted with a clock signal CLK and a latch signal LAT corresponding to each ejection timing, respectively.

  The data memory 33 stores the following data for each ejection timing that is periodically set according to the scanning positions of the ejection heads 11 and 12. That is, discharge data (SIA) that defines switching of supply / non-supply (ON / OFF) of the drive signal (COM) to each piezoelectric element 16 and COM lines COM1 to COM4 corresponding to each piezoelectric element 16 are defined. Drive signal selection data (SIB) and waveform number data (WN) that defines the types of waveform data WD1 to WD4 input to the D / A converters 31A to 31D.

  In this embodiment, the ejection data (SIA) is composed of 1 bit (0, 1) per nozzle, and the drive signal selection data (SIB) is 2 bits (0, 1, 2, 3) per nozzle. The waveform number data (WN) is composed of 7 bits (0 to 127) per 1D / A converter. Note that these data configurations can be changed as appropriate.

  In the ejection heads 11 and 12, drive control for each nozzle n is performed according to the timing chart shown in FIG. Specifically, first, in the period of the timings t1 to t2 shown in FIG. 5, the ejection data (SIA), the drive signal selection data (SIB), and the waveform number data (WN) are converted into serial signals, respectively, and the switching circuit. 17, and transmitted to the drive signal selection circuit 18 and the waveform data selection circuit 32.

  Then, by latching each data at timing t2, the segment electrode 16s of each piezoelectric element 16 related to ejection (ON) is connected to each COM line COM1 to COM4 designated by the drive signal selection data (SIB). It becomes a state. For example, when the drive signal selection data (SIB) is 0, 1, 2, 3, the segment electrodes 16s of the corresponding piezoelectric element 16 are connected to the respective COM lines COM1, COM2, COM3, COM4. Further, waveform data (WD1 to WD4) of drive signals related to the generation of the D / A converters 31A to 31D are set.

  Next, in each period of timings t3 to t4, t4 to t5, and t5 to t6 shown in FIG. 5, the driving signal is performed in a series of steps of increasing potential, maintaining potential, and decreasing potential according to the waveform data set at timing t2. (COM) is generated. Then, the generated drive signal is supplied to the piezoelectric elements 16 that are connected to the COM lines COM1 to COM4, and volume (pressure) control of the cavities communicating with the nozzles is performed.

  Here, the potential increasing component at timings t3 to t4 expands the cavity and plays a role of drawing the liquid material inward of the nozzle n. Further, the potential drop component at the timings t5 to t6 plays a role of contracting the cavity and pushing the liquid material out of the nozzle n and ejecting it.

  The time component and the voltage component related to the potential increase, potential retention, and potential decrease in the drive signal (COM) are closely dependent on the discharge amount of the liquid material discharged by the supply. In particular, in the ejection heads 11 and 12 adopting the piezoelectric method, since the ejection amount exhibits a good linearity with respect to the change in the voltage component, the voltage difference at the timings t3 to t6 is defined as the drive voltage Vh, and this is ejected. It can be used as a condition for quantity control.

  That is, the drive voltage Vh corresponds to a “drive condition” when controlling the discharge amount from each nozzle n. The drive signal (COM) to be generated is not limited to a simple trapezoidal wave as shown in the present embodiment, and various known shapes can be adopted as appropriate. Further, when a different driving method (for example, a thermal method) is adopted, the pulse width (time component) of the driving signal can be used as a driving condition for the ejection amount control.

  In the present embodiment, a plurality of types of waveform data in which the drive voltage Vh is changed in stages are prepared, and independent waveform data (WD1 to WD4) are input to the D / A converters 31A to 31D, respectively. It is possible to output drive signals (COM) having different drive voltages Vh to the lines COM1 to COM4. The types of waveform data that can be prepared are 128 types corresponding to the information amount (7 bits) of the waveform number data (WN). For example, this corresponds to the drive voltage Vh in increments of 0.1V.

  As described above, in the liquid material ejection device 200 of the present embodiment, the drive signal selection data (SIB) that defines the correspondence between each piezoelectric element 16 (nozzle n) and the COM lines COM1 to COM4, and each COM line. By appropriately setting the waveform number data (WN) that defines the correspondence between COM1 to COM4 and the type of drive signal (drive voltage Vh), it is possible to discharge the liquid material with an appropriate discharge amount. .

  Therefore, appropriately setting the drive signal of each nozzle n determined by the relationship between the drive signal selection data (SIB) and the waveform number data (WN) is an important matter for managing the discharge amount of each nozzle n. Become.

  In the liquid material discharge device 200 according to the present embodiment, the drive signal selection data (SIB) and the waveform number data (WN) can be updated at each discharge timing, so that the discharge data (SIA) changes. Correspondingly, it is possible to set the drive signal finely.

(Drive setting method)
Next, a specific drive setting method of the liquid material discharge apparatus 200 will be described.
In the drive setting method of this embodiment, according to the flowchart shown in FIG. 6, the drive conditions of the plurality of nozzles n included in the ejection heads 11 and 12, that is, the appropriate conditions (drive voltage Vh) of the drive signal (COM) of each nozzle n are set. Set.

  Specifically, first, in step S101 shown in FIG. 6, the discharge amount based on a predetermined drive condition of the plurality of nozzles n is obtained, and each nozzle n for which the discharge of the liquid material is selected in each of the plurality of arrangement regions 50. The selected nozzles n are classified into a plurality of groups based on the difference in the discharge amount. Then, an appropriate condition for reducing the difference in the discharge amount of each nozzle n selected for each group is obtained, and a drive condition corrected for each group is set based on the appropriate condition (hereinafter referred to as COM setting). ).

  Here, the discharge amount measuring system 300 shown in FIG. 7 for measuring the discharge amount of the liquid discharged from the nozzles n of the discharge heads 11 and 12 will be described. FIG. 7 is a block diagram showing a schematic configuration of the discharge amount measuring system 300.

  As shown in FIG. 7, the discharge amount measuring system 300 includes a liquid supply device 301 for supplying a liquid to each nozzle n of the discharge heads 11 and 12 and a control circuit for driving the discharge heads 11 and 12. And a substrate 302.

  Further, the discharge amount measuring system 300 receives the liquid material discharged from the nozzles n of the discharge heads 11 and 12 and measures the weight of the liquid material receiving container 303 for containing the liquid material and the liquid material receiving container 303. And a weight measuring device 304 for the purpose.

  Further, the discharge amount measuring system 300 includes a liquid material receiving substrate 305 that receives the liquid material discharged from each nozzle n of the discharge heads 11 and 12, and a substrate for moving the liquid material receiving substrate 305 in the surface direction of the substrate. A moving device 306 and a volume measuring device 307 for measuring the volume of the liquid material disposed on the liquid material receiving substrate 305 are provided.

  Further, the discharge amount measuring system 300 controls the driving of the discharge heads 11 and 12 via the control circuit board 302, controls the driving of the substrate moving device 306, and performs the weighing operation of the weight measuring device 304 and the volume measuring device 307. A personal computer (PC) 308 is provided for controlling and performing calculations based on the measurement results.

  The control circuit board 302 has the same configuration as the control circuit board 30. The liquid material receiving container 303 may be of any material as long as it is not eroded by the liquid material. However, the liquid material receiving container 303 is configured to suppress volatilization of the liquid material by arranging a porous member such as a sponge in the opening. Preferably it is. In addition, a general electronic balance can be used for the weight weighing device 304. As the volume measuring device 307, a three-dimensional shape measuring device using a white interference method can be used.

  In the discharge amount measurement system 300 having the above-described configuration, the discharge amount of each nozzle n can be measured as a weight or a volume by using two types of measuring devices, the weight measuring device 304 and the volume measuring device 307. . Among these, the weight measuring device 304 is suitable for measuring an average discharge amount in the entire nozzle array 10 at high speed and with high accuracy. On the other hand, the volume measuring device 307 is suitable for measuring the discharge amount of each nozzle n individually.

  Next, after measuring the discharge amount of the liquid discharged from each nozzle n using the discharge amount measuring system 300, each nozzle n is classified into a plurality of groups, and the driving conditions (for each group corrected) ( A procedure (COM setting procedure) for setting (appropriate driving voltage) will be described with reference to the flowchart shown in FIG.

  When setting COM, first, in step S201 shown in FIG. 8, all the nozzles (except for the dummy nozzles) in the nozzle arrays 21A and 21B in a state where the ejection heads 11 and 12 are attached to the ejection amount measuring system 300. ) Measure the average value of the discharge amount at n. Specifically, ejection is performed a number of times (for example, 100,000 times) for each nozzle n, the total weight is measured by the weight weighing device 304, and the measurement result is divided and measured. This measurement is performed under two conditions of driving voltage Vh (for example, 20 V and 30 V).

  Next, in step S203 shown in FIG. 8, the relationship between the drive voltage Vh and the average value of the discharge amount under the two measured conditions is linearly complemented, and the average discharge amount of the reference discharge amount (design value according to the specification). A reference drive voltage Vs for obtaining a value is calculated. Further, in step S203 shown in FIG. 8, the change rate of the average value of the discharge amount with respect to the drive voltage Vh is calculated as a correlation coefficient α when the discharge amount is corrected by the drive voltage Vh.

  Next, in step S204 shown in FIG. 8, a drive signal of drive voltage Vh = Vs is supplied to all the piezoelectric elements of the nozzle arrays 21A and 21B, and the liquid material is discharged onto the liquid material receiving substrate 305. Measure the amount.

  Since the surface of the liquid material receiving substrate 305 is subjected to a liquid repellent treatment, the liquid material discharged from each nozzle n forms an independent hemispherical droplet on the substrate P. The three-dimensional shape of the droplet is measured by the volume measuring device 307, and the measurement data is analyzed by the personal computer 308, whereby the discharge amount can be obtained. In addition, since the discharge amount per one time of each nozzle n is extremely small, in order to increase the accuracy of the volume measurement (discharge amount measurement) of the droplet, a plurality of discharges of each nozzle n are overlapped at the same location on the substrate P. Times (for example, 3 times).

  Here, when the ejection amount of each nozzle n measured in step S204 is shown as a spatial distribution in the direction in which the nozzle arrays 21A and 21B are arranged, a graph as shown in FIG. 9 is obtained. In the graph shown in FIG. 9, the discharge amount of each nozzle n is expressed as a relative ratio (%) to the reference discharge amount.

  As shown in FIG. 9, in the ejection heads 11 and 12, the ejection amount of the nozzles n near the ends of the nozzle arrays 21A and 21B is relatively large, and ejection is performed by the nozzles n near the center of the nozzle arrays 21A and 21B. The amount tends to be relatively small.

  Next, in step S205 shown in FIG. 8, group setting for each nozzle n is performed based on the measurement in step S204. In this embodiment, according to the order of the measured discharge amount of each nozzle n (the higher discharge amount is the upper level and the lower discharge amount is the lower level), the 14 nozzles are grouped in order from the lowest level to group A and group A. The upper 14 nozzles are classified into group B, the upper 13 nozzles of group B are classified as group C, and the upper 13 nozzles of group C are classified as group D.

  Next, in step S206 shown in FIG. 8, an appropriate condition for reducing the difference in the discharge amount of each nozzle n for each of groups A to D, that is, an appropriate drive voltage Vh corresponding to each of groups A to D (hereinafter referred to as appropriate drive). Voltages VhA, VhB, VhC, VhD).

  Appropriate conditions for each of the groups A to D can be set freely. In the present embodiment, the appropriate drive voltages VhA to VhD for making the statistical values of the discharge amounts related to the groups A to D coincide with the reference discharge amount, respectively, the measured values of the discharge amount in step S204, the correlation coefficient α, and Calculation is based on the reference drive voltage Vs.

  Here, the statistical value of the discharge amount related to the groups A to D refers to a numerical value obtained from the statistics of the discharge amount of the plurality of nozzles n included in each group. In the present embodiment, the average value of the discharge amounts of the nozzles n included in the groups A to D is employed. As a result, stepwise appropriate drive voltages VhA to VhD for discharging liquid materials having an average drop amount (reference discharge amount) from the nozzles n of the groups A to D are obtained.

  In this embodiment, in addition to the average value of the discharge amount of the nozzle n included in each of the groups A to D described above, the median value of the discharge amount of the nozzle n included in each of the groups A to D is related to the group. You may employ | adopt as a statistical value of discharge amount.

  The appropriate drive voltages VhA, VhB, VhC, and VhD in this embodiment are set as a relative ratio with respect to the reference drive voltage Vs. For example, the appropriate drive voltages VhA, VhB, VhC, and VhD are set as 101.8%, 100.7%, 99.4%, and 97.9%, respectively. Thus, by defining the appropriate drive voltages VhA, VhB, VhC, and VhD in relative ratios, for example, when a situation occurs in which the viscosity of the liquid material changes and the discharge amount changes uniformly, There is an advantage that it is only necessary to measure the average value of the discharge amounts of the entire nozzle arrays 21A and 21B and reset the reference drive voltage Vs.

  Next, in step S207 shown in FIG. 8, the driving voltage to be associated with each nozzle n is selected and set for each of the groups A to D from the appropriate driving voltages VhA, VhB, VhC, and VhD. The appropriate drive voltages VhA, VhB, VhC, and VhD can be made to correspond to drive signals (COM) that are respectively supplied to the four COM lines COM1 to COM4 in the control circuit board 30 that is the control unit described above.

  In addition, when setting the appropriate condition (drive voltage Vh) of the drive signal (COM) of each nozzle n, the method of setting the appropriate drive voltage corresponding to the said group collectively for every group AD can also be considered. However, groups such as group B and group D that have a relatively wide distribution range of the discharge amount include nozzles n having discharge amounts that are far from the statistical values. It is not necessarily a preferable method to set an appropriate driving voltage based on the statistical value of the group.

  Therefore, in the present embodiment, for each nozzle n, among the four appropriate drive voltages corresponding to the groups A to D, the one corresponding to the group related to the statistical value closest to the discharge amount of the nozzle is selected and set. I am doing so. Thereby, the drive signal according to the characteristic of the nozzle n can be set with higher accuracy.

  For example, in the graph shown in FIG. 9, the appropriate drive voltage VhA is set for all the nozzles in the group A. In the case of group B nozzles, the appropriate drive voltage VhB is set for many nozzles. For example, the appropriate drive voltage VhC is set for the nozzle of nozzle number 8 and the appropriate drive voltage VhA is set for the nozzle of nozzle number 15. The As described above, in a group having a relatively wide distribution range of the discharge amount, an appropriate drive voltage corresponding to the group related to the preceding and following order is set for the nozzle near the boundary with the group related to the preceding and following order. Sometimes.

  Note that the group classification method, in particular, the number of nozzles constituting each group is not necessarily limited to that of the above embodiment. However, since the drive voltage Vh is set according to the group unit, it is preferable to make the number of nozzles constituting each group substantially equal. Thereby, it is possible to make it difficult to cause an imbalance in the appropriate drive voltages VhA, VhB, VhC, VhD, that is, the number of nozzles n corresponding to the COM lines COM1 to COM4. That is, since the number of nozzles n in the COM lines COM1 to COM4 affects the distortion (electric crosstalk) of the drive signal (COM), an imbalance between the COM lines COM1 to COM4 is avoided as much as possible. The number of nozzles n constituting each group A to D is preferably equalized.

  In step S101 (COM setting) shown in FIG. 6, the groups A to D are not classified for all the nozzles n constituting the nozzle arrays 21A and 21B of the ejection heads 11 and 12, and the above-described plural In each of the arrangement regions 50, the groups A to D are classified with respect to the nozzle n for which the discharge of the liquid material is selected. That is, the nozzles n to be classified into groups A to D are nozzles n to which the drive signal (COM) is supplied, and the dummy nozzles and the non-ejection nozzles n are excluded.

  Next, after COM is set, COM replacement is performed according to the procedure of steps S102 to S105 shown in FIG. Specifically, first, in step S102 shown in FIG. 6, a plurality of discharge amounts based on the corrected drive conditions (appropriate drive voltages VhA, VhB, VhC, VhD) of each nozzle n selected in step S101 are calculated. The arrangement amount of the liquid material arranged in each of the arrangement regions 50 is obtained. Then, one arrangement region where the arrangement amount is most deviated from the target value is specified.

  Next, in step S103 shown in FIG. 6, an appropriate condition is obtained in which the arrangement amount of the liquid material in one arrangement region is closest to the target value, and the discharge of the liquid material in the one arrangement region is performed based on this appropriate condition. Among the selected nozzles n, one group to which one nozzle (hereinafter referred to as COM replacement nozzle) belongs is changed to another group. (Hereinafter referred to as one COM replacement.)

  Next, in step S104 shown in FIG. 6, when another nozzle belonging to another group (hereinafter referred to as “COM replacement supplement nozzle”) is changed to one group, the arrangement amount of the liquid material is closest to the target value. The other arrangement area is specified.

  Next, in step S105 shown in FIG. 6, the COM replacement complementary nozzles belonging to other groups are changed to one group among the nozzles selected to eject the liquid material in the other arrangement region. (Hereinafter referred to as other COM replacement.)

  As described above, the smaller the arrangement area 50, the smaller the number of nozzles n for which the liquid material is selected in the arrangement area 50 and the number of ejections of each nozzle n. In this case, each nozzle n described above is classified into a plurality of groups A to D, and the effect obtained by setting the driving conditions (appropriate driving voltages VhA, VhB, VhC, VhD) corrected for each of the groups A to D is small. There is a case.

  That is, as the number of nozzles n selected in each arrangement region 50 and the number of ejections of each nozzle n decrease, the amount of liquid material arranged in each arrangement region 50 decreases. In this case, the variation in the arrangement amount of the liquid material arranged in each arrangement region 50 becomes large.

  For example, when nozzles n having a large discharge amount are concentrated in one arrangement region 50, the arrangement amount of the liquid material arranged in the arrangement region 50 is larger than the arrangement amount of the liquid material arranged in the other arrangement region. Become. In this case, it is difficult to equalize the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions 50, which causes the above-described liquid material arrangement unevenness.

  On the other hand, in the drive setting method of the present embodiment, the nozzles n for which the discharge of the liquid material is selected in each of the plurality of arrangement regions 50 are classified into a plurality of groups A to D, and each group A to D is classified. After setting the corrected driving conditions (appropriate driving voltages VhA, VhB, VhC, VhD), the one arrangement region where the arrangement amount of the liquid material is most deviated from the target value is specified, and the liquid material in the one arrangement region is specified. An appropriate condition in which the amount of arrangement is closest to the target value is obtained, and one group to which the COM replacement nozzle belongs is changed to another group based on the appropriate condition.

  Thereby, the arrangement amount of the liquid material in one arrangement region can be brought close to the target value. Therefore, according to this method, even when the amount of liquid disposed is reduced, the amount of liquid disposed in each of the plurality of placement regions 50 can be made uniform.

  Further, in the drive setting method of the present embodiment, the nozzle n belonging to each of the groups A to D is exchanged by replacing one group to which the COM replacement nozzle belongs and another group to which the COM replacement complementary nozzle belongs (COM replacement). Without changing the total number of liquids, the liquid material arrangement amount in one arrangement region can be brought close to the target value, and the liquid material arrangement amount in another arrangement region can be brought close to the target value.

  Thereby, it arrange | positions in each of the some arrangement | positioning area | region 50 in the state which stabilized the discharge amount of the liquid material discharged from each nozzle n, equalizing the number of the nozzles n which comprise each group AD. It is possible to make the arrangement amount of the liquid more uniform.

  Further, in the drive setting method of the present embodiment, in step S106 shown in FIG. 6, the arrangement amount of the liquid material arranged in one arrangement area before one COM exchange (the above-described step S103) (one arrangement before one COM exchange). The amount of liquid disposed in another placement area after another COM replacement (step S105 above) (referred to as an amount after other COM replacement) is compared. Then, when the arrangement amount before one COM replacement deviates from the target value than the other arrangement amounts after COM replacement, it is desirable to perform COM replacement again, that is, repeat steps S102 to S105 in this order.

  Thereby, the arrangement of the liquid material arranged in each of the plurality of arrangement regions 50 within a range in which the effect of replacing one group to which the COM replacement nozzle belongs and another group to which the COM replacement supplement nozzle belongs can be obtained. It is possible to further homogenize the amount.

  On the other hand, when the arrangement amount after other COM replacement deviates from the target value with respect to the arrangement amount before one COM replacement, the effect of the COM replacement cannot be obtained, so the COM replacement (steps S102 to S105 above) is not performed. Finally, the setting of the drive signal (COM) for each nozzle n is completed. Even when the arrangement amount after one COM replacement is the same as the arrangement amount before the other COM replacement, there is no effect due to the COM replacement, so that the drive signal (COM) of each nozzle n is not performed without performing the COM replacement. The setting shall be terminated.

  Further, in the drive setting method of the present embodiment, in step S102 and step S104, the liquid placed in one arrangement area before one COM replacement (step S103) from among the arrangement areas 50 adjacent to each other. Body placement amount (placement amount before one COM replacement) and placement amount of liquid material placed in another placement region before another COM replacement (step S105 above) (referred to as another placement amount before COM replacement) And the one arrangement area and the other arrangement area where the difference between the arrangement quantity before one COM replacement and the other arrangement quantity before the COM replacement becomes the largest may be specified.

  In this drive setting method, between one arrangement region 50 adjacent to each other, one group to which the COM replacement nozzle belongs and another group to which the COM replacement supplement nozzle belongs are interchanged with each other. Thus, the difference in the amount of arrangement can be reduced. Thereby, it is possible to suppress the influence by the arrangement | positioning nonuniformity of a liquid.

  In the drive setting method of the present embodiment, the COM replacement nozzle and the COM replacement complementary nozzle may be selected from the same ejection heads 11 and 12 in step S102 and step S104.

  According to this drive setting method, the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions 50 can be made more uniform while the discharge amount of the liquid material discharged from each nozzle n is stabilized. Is possible.

(Drive setting program)
Next, a specific drive setting program of the liquid material discharge apparatus 200 will be described.
The drive setting program according to the present embodiment is a control program for executing the drive setting method according to the present embodiment. In the control circuit board (control unit) 30 that controls the driving of the ejection heads 11 and 12, each nozzle is set. An appropriate condition (drive voltage Vh) of the n drive signal (COM) is set.

  The control circuit board 30 includes a computer (CPU or the like), and executes the drive setting method of the present embodiment described above according to a control program (drive setting program of the present invention) stored in an internal memory (storage means). Further, the drive setting program is not limited to the one stored (stored) in the memory of the control circuit board 30, but can be recorded in an external storage device, a recording medium, or the like.

  According to the drive setting program of the present embodiment, even when the arrangement amount of the liquid material is reduced, the arrangement amount of the plurality of nozzles n that can equalize the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions. Driving conditions can be set and executed on the control circuit board 30 of the liquid material discharge apparatus 200.

  In addition, this invention is not necessarily limited to the thing of the said embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.

  That is, the present invention is not limited to the case where the COM replacement is performed after the COM setting as in the above-described embodiment, and in the liquid discharge apparatus including the discharge head having a plurality of nozzles, the discharge head is set to the discharge target. When a predetermined amount of liquid material is disposed in each of a plurality of arrangement regions provided in the discharge target by discharging the liquid material from a plurality of nozzles while performing a relatively moving scan, a plurality of liquid materials are disposed. This is applicable when at least one of a plurality of driving conditions is set for each nozzle.

Here, the driving condition setting method of the liquid material discharge apparatus according to the present invention will be described according to the flowchart shown in FIG.
In the driving condition setting method for a liquid material discharge apparatus according to the present invention, first, at least one driving condition among a plurality of driving conditions is set in step S301 (A step) shown in FIG.

  Next, in step S302 (step B) shown in FIG. 10, at least one corresponding nozzle that is opposed to each of the plurality of arrangement regions in scanning and ejects the liquid material is selected from the plurality of nozzles. Set.

  Next, in step S303 (C step) shown in FIG. 10, the driving conditions set for each of the plurality of nozzles in the A step and the corresponding nozzles set for each of the plurality of arrangement regions in the B step. Based on the above, the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions is acquired.

  Next, in step S304 (D step) shown in FIG. 10, a first arrangement area and a second arrangement area are selected from a plurality of arrangement areas.

  Next, in step S305 (E step) shown in FIG. 10, the driving conditions of the first nozzle, which is the corresponding nozzle in the first arrangement region, are set to the first driving set to the first nozzle in the A step. The condition is changed to the second driving condition set for the second nozzle that is the corresponding nozzle in the second arrangement region.

  Next, in step S306 (F step) shown in FIG. 10, the driving condition of the second nozzle is changed from the second driving condition set for the second nozzle in step A to the first driving condition. To do.

  Next, in step S307 shown in FIG. 10, when the difference between the fourth arrangement amount and the target arrangement amount is larger than the difference between the first arrangement amount and the target arrangement amount, there is an effect of replacement. It judges and repeats D step, E step, and F step in this order.

  On the other hand, when the difference between the fourth arrangement amount and the target arrangement amount is smaller than the difference between the first arrangement amount and the target arrangement amount, it is determined that there is no effect of the exchange, and the exchange is terminated. If the difference between the first arrangement amount and the target arrangement amount and the difference between the fourth arrangement amount and the target arrangement amount are the same, it is determined that there is no effect of the exchange, and the exchange is terminated.

  In the driving condition setting method of the liquid material discharge apparatus according to the present invention, the liquid material arrangement amount in the first arrangement region acquired in the C step is set as the first arrangement amount, and the second arrangement region acquired in the C step. The arrangement amount of the liquid material in is the second arrangement amount.

  Then, by changing the driving condition of the first nozzle from the first driving condition to the second driving condition in the E step, the liquid material arrangement amount in the first arrangement region is changed from the first arrangement amount to the first arrangement amount. The amount of arrangement is 3. On the other hand, by changing the driving condition of the second nozzle from the second driving condition to the first driving condition in the F step, the liquid material arrangement amount in the second arrangement region is changed from the second arrangement amount to the first one. The amount of arrangement is 4. Thereby, it is possible to make the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions close to a preset target arrangement amount.

  Note that “step S101 (COM setting)” in the above embodiment corresponds to “AC steps” in the present invention, and “step S102” and “step S104” in the above embodiment are “D step” in the present invention. “Step S103 (one COM replacement)” in the above embodiment corresponds to “E step” in the present invention, and “Step S105 (other COM replacement)” in the above embodiment corresponds to “F” in the present invention. This corresponds to “step”.

  Further, the “COM replacement nozzle” in the above embodiment corresponds to the “first nozzle” in the present invention, and the “COM replacement complementary nozzle” in the above embodiment corresponds to the “second nozzle” in the present invention. The “one group” in the above embodiment corresponds to the “first driving condition” in the present invention, and the “other group” in the above embodiment corresponds to the “second driving condition” in the present invention. Further, the “one arrangement area” in the above embodiment corresponds to the “first arrangement area” in the present invention, and the “other arrangement area” in the above embodiment corresponds to the “second arrangement area” in the present invention. To do.

  The “one arrangement amount before COM replacement” in the above embodiment corresponds to the “first arrangement amount” in the present invention, and the “one arrangement amount after COM replacement” in the above embodiment is “the third arrangement amount” in the present invention. The “arrangement amount after the other COM replacement” in the above embodiment corresponds to the “fourth arrangement amount” in the present invention.

  In the step D, the first arrangement area is selected so that the first arrangement quantity is different from the target arrangement quantity set in advance for each of the plurality of arrangement areas. It is preferable to select the second arrangement region so as to be different from the target arrangement amount.

  In this case, the greater the difference between the first arrangement amount and the target arrangement amount and the difference between the second arrangement amount and the target arrangement amount, the greater the effect of replacement. Thereby, the arrangement amount of the liquid material arranged in each of the first arrangement region and the second arrangement region selected from the plurality of arrangement regions can be brought close to the target arrangement amount efficiently.

  In the step D, it is preferable to select the first arrangement region so that the difference between the third arrangement amount and the target arrangement amount is smaller than the difference between the first arrangement amount and the target arrangement amount. .

  In this case, since the difference between the third arrangement amount and the target arrangement amount is smaller than the difference between the first arrangement amount and the target arrangement amount, the arrangement amount of the liquid material arranged in the first arrangement region is set as the target. It can be close to the amount of arrangement.

  In the step D, it is preferable to select the second arrangement region so that the difference between the fourth arrangement amount and the target arrangement amount is smaller than the difference between the second arrangement amount and the target arrangement amount. .

  In this case, since the difference between the fourth arrangement amount and the target arrangement amount is smaller than the difference between the second arrangement amount and the target arrangement amount, the arrangement amount of the liquid material arranged in the second arrangement area is set as the target. It can be close to the amount of arrangement.

  In the step D, it is more preferable to select the first arrangement region so that the difference between the first arrangement amount and the target arrangement amount is maximized.

  In this case, by selecting the first arrangement region in which the difference between the first arrangement amount and the target arrangement amount is the largest, the arrangement amount of the liquid material arranged in the first arrangement region is set as the target arrangement amount. Furthermore, it can approach efficiently.

  In the step D, the first arrangement area and the first arrangement area and the target arrangement quantity are reversed so that the magnitude relation between the first arrangement quantity and the target arrangement quantity is reversed. It is preferable to select the second arrangement region.

  In this case, the effect of switching the first driving condition and the second driving condition between the first arrangement area and the second arrangement area is increased. Thereby, the arrangement amount of the liquid material arranged in each of the first arrangement region and the second arrangement region selected from the plurality of arrangement regions can be brought close to the target arrangement amount efficiently.

  Further, in the drive setting method for the liquid material discharge apparatus according to the present invention, when the first arrangement area and the second arrangement area are adjacent to each other, the arrangement amount of the liquid material arranged in each is made close to the target arrangement amount. Thus, it is possible to suppress the influence due to the uneven arrangement of the liquid material.

  That is, when the first placement area and the second placement area are adjacent to each other, the first placement area and the second placement quantity are different so that the first placement quantity and the second placement quantity are different in the D step. Is preferably selected.

  In this case, the replacement effect increases as the first arrangement amount and the second arrangement amount differ. Thereby, the arrangement amount of the liquid material arranged in each of the first arrangement region and the second arrangement region selected from the plurality of arrangement regions can be brought close to the target arrangement amount.

  Further, in step D, it is preferable to select the first arrangement area and the second arrangement area that are adjacent to each other so that the difference between the first arrangement quantity and the second arrangement quantity is maximized. .

  In this case, the arrangement amount of the liquid material arranged in each of the first arrangement region and the second arrangement region adjacent to each other can be made close to the other efficiently.

  Furthermore, in the D step, the first adjacent to each other so that the difference between the third arrangement amount and the fourth arrangement amount is smaller than the difference between the first arrangement amount and the second arrangement amount. A method of selecting the arrangement area and the second arrangement area may be used.

  In this case, since the arrangement amount of the liquid material arranged in each of the first arrangement region and the second arrangement region adjacent to each other can be reduced, the influence of the uneven arrangement of the liquid material is suppressed. Is possible.

  Further, in the step A, the plurality of nozzles are divided into a plurality of groups each having a nozzle group including a plurality of nozzles having the same driving condition, and each of the nozzle groups of each of the plurality of groups has a nozzle group. A driving condition may be set for each group based on the statistical value of the discharge amount.

  In this case, even when the driving condition is set for each group, the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions can be brought close to the preset target arrangement amount.

  In the B step, a plurality of corresponding nozzles that are opposed to each other in the scanning and discharge the liquid material are selected from the plurality of nozzles and set in the C step. As the arrangement amount of the liquid material arranged in each of the arrangement regions, a total sum of the discharge amounts of the plurality of corresponding nozzles in each of the plurality of arrangement regions is obtained, and the plurality of corresponding nozzles set in the first arrangement region One corresponding nozzle may be selected as the first nozzle, and one corresponding nozzle among the plurality of corresponding nozzles set in the second arrangement region may be selected as the second nozzle.

  In this case, even when a plurality of corresponding nozzles are selected from a plurality of nozzles and set for each of the plurality of arrangement regions, the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions is set in advance. The target arrangement amount can be approached.

  Further, when the driving condition is set for each group, the corresponding nozzle for which the driving condition with the largest discharge amount is set is selected as the first nozzle from the plurality of corresponding nozzles in the first arrangement region. Is preferred.

  In this case, the arrangement amount of the liquid material arranged in the first arrangement region can be brought close to the target arrangement amount efficiently.

  Further, when the driving condition is set for each group, the corresponding nozzle for which the driving condition with the smallest discharge amount is set is selected as the second nozzle from the plurality of corresponding nozzles in the second arrangement region. Is preferred.

  In this case, the arrangement amount of the liquid material arranged in the second arrangement region can be brought close to the target arrangement amount efficiently.

  Moreover, in the drive setting method of the liquid material discharge device according to the present invention, the liquid material discharge device has a configuration in which a plurality of the discharge heads are arranged side by side, and the first nozzle is formed from the plurality of nozzles of the same discharge head. And the second nozzle is preferably selected.

  In this case, the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions can be brought close to the target arrangement amount in a state where the discharge amount of the liquid material ejected from the plurality of nozzles for each ejection head is stabilized. .

  In addition, as an example of the arrangement of the liquid material by the liquid material discharge device, the case where the light emitting layer (element film) of the organic EL panel (display) described above is formed has been described. In addition, for example, formation of a color filter in a liquid crystal display, formation of a fluorescent film in a plasma display device, formation of a conductive wiring or a resistance element in an electric circuit, and the like can be given. In particular, the smaller the arrangement area (for example, pixel) 50 described above, the smaller the number of nozzles n for which the liquid material is selected in the arrangement area 50 and the number of ejections of each nozzle n. In such a case, the present invention can be preferably used.

  Hereinafter, the effects of the present invention will be made clearer by examples. In addition, this invention is not limited to a following example, In the range which does not change the summary, it can change suitably and can implement.

  In the present embodiment, for example, as shown in FIG. 11, the discharge head in which 180 nozzles n are arranged in one nozzle array is scanned, and 23 pixels are arranged on the substrate at a predetermined pitch. In the case where a predetermined amount (40 ng as a target value) of liquid material is respectively arranged with respect to (arrangement region 50), the discharge amount and each arrangement of each nozzle n are actually used by using the drive setting method of the present embodiment. The amount of liquid disposed in the region 50 (the amount of liquid in the pixel) was corrected.

  In this embodiment, of the 180 nozzles n, 10 nozzles n respectively disposed at both ends of the nozzle array are used as dummy nozzles. In addition, four nozzles n are selected for one pixel (arrangement region 50) by one scan (scan) of the ejection head, and four droplets of liquid material from each selected nozzle n are scanned once. (Droplet) i is discharged (drawn).

  In the actual operation of the liquid material discharge apparatus 200 when a predetermined amount of liquid material is arranged in the plurality of arrangement regions 50, not only the ejection heads 11 and 12 are scanned a plurality of times, but also the plurality of arrangement regions 50. In each case, the nozzle n and the ejection heads 11 and 12 from which ejection of the liquid material is selected may be switched for each scan. For this reason, although the actual drive setting method is more complicated, in this embodiment, for the sake of easy understanding, a case where one scan is performed by one ejection head will be described as an example.

  In this example, first, after measuring the discharge amount of the liquid material discharged from each nozzle using the discharge amount measuring system 300, 92 nozzles for which discharge of the liquid material was selected in each of the pixels. Are classified into four groups (hereinafter referred to as COM numbers 1 to 4) based on the difference between the respective discharge amounts (hereinafter referred to as pre-correction discharge amounts). Then, a correction amount [ng] with respect to the pre-correction discharge amount [ng] is set for each group.

  Hereinafter, for 160 nozzles (nozzle numbers 11 to 170) excluding dummy nozzles, the discharge amount of each nozzle, the presence / absence of discharge, the discharge amount before correction [ng] of the nozzle selected to be discharged, and 23 nozzles Tables 1A to 1D show the sum of the in-pixel liquid amount [ng] before correction for the pixels (pixel numbers 1 to 23). Table 2 shows the number of nozzles (Count) for the COM numbers 1 to 4 and the correction amount [ng].

  In Tables 1A to 1D, calculation is performed with values up to the fourth decimal place, and values are rounded off to display values up to the second decimal place. The same applies to Tables 3A to 3D, Tables 4A to 4D, and Tables 5A to 5D shown below.

  Further, the difference [ng] with respect to the reference discharge amount (10 ng) of each nozzle selected to be discharged, the COM numbers 1 to 4, the difference [ng] corresponding to the COM numbers 1 to 4, and the COM numbers 1 to 4 Tables 3A to 3D show the correction amount [ng], the corrected discharge amount [ng], and the corrected in-pixel liquid amount [ng] of each pixel (pixel numbers 1 to 23).

  Next, the first COM replacement was performed. After the first COM replacement, the difference [ng] in the amount of liquid in the pixel from the target value (40 ng) of the pixels (pixel numbers 1 to 23) and the COM number after the COM replacement of each nozzle selected to be ejected Change amount [ng] of the discharge amount corresponding to 1 to 4, COM numbers 1 to 4 after COM replacement, correction amount [ng] of COM numbers 1 to 4, and discharge amount [ng] after correction, Tables 4A to 4D show a summary of the in-pixel liquid amount [ng] after the COM replacement of each pixel (pixel numbers 1 to 23).

  In the first COM replacement, as shown in Tables 4A to 4D, the pixel (one arrangement region) farthest from the target value is the thirteenth pixel, the liquid amount in the pixel is 40.24 ng, and the target The difference from the value is 0.24 ng. In the thirteenth pixel, the 95th to 98th nozzles are selected. Among these, in order to bring the difference from the target value closer to 0, when the 96th nozzle is changed from COM No. 1 to COM No. 4, the discharge amount changes to −0.29 ng, and within the pixel after the COM change, Since the liquid amount was 39.95 (= 40.24-0.29) ng, the 96th nozzle was selected as the COM replacement nozzle.

  On the other hand, by replacing the 96th nozzle from COM number 1 to COM number 4, it is necessary to select a COM replacement complementary nozzle to be replaced with COM number 1 from nozzles assigned with other COM numbers 4 . Among these, the pixel (the other arrangement region) in which the liquid amount in the pixel is closest to the target value by switching to COM number 1 is the first pixel including the twelfth nozzle. When the 12th nozzle is changed from COM No. 4 to COM No. 1, the discharge amount changes to +0.29 ng, and the amount of liquid in the pixel after COM replacement becomes 40.19 (= 39.90 + 0.29) ng. Therefore, the 12th nozzle was selected as the COM replacement complementary nozzle.

  As a result, in the first COM replacement, the amount of liquid in the pixel (composition amount before one COM replacement) of the thirteenth pixel before COM replacement is 40.24 ng (difference +0.24 ng). Since the amount of liquid in the pixel after the replacement of the pixel (the amount after the other COM replacement) was 40.19 ng (difference +0.19 ng), the effect of the COM replacement was obtained.

  Therefore, the second COM replacement was performed. After the second COM replacement, the difference [ng] in the amount of liquid in the pixel from the target value (40 ng) of the pixel (pixel number 1 to 23) and the COM number after the COM replacement of each nozzle selected to be ejected Change amount [ng] of the discharge amount corresponding to 1 to 4, COM numbers 1 to 4 after COM replacement, correction amount [ng] of COM numbers 1 to 4, and discharge amount [ng] after correction, Tables 5A to 5D show a summary of the in-pixel liquid amount [ng] after COM replacement of each pixel (pixel numbers 1 to 23).

  In the second COM replacement, as shown in Tables 5A to 5D, the pixel (one arrangement region) most deviated from the target value is the tenth pixel, the liquid amount in the pixel is 39.91 ng, and the target The difference from the value is -0.09 ng. In the tenth pixel, the 74th to 77th nozzles are selected. Among these, in order to bring the difference from the target value closer to 0, when the 74th nozzle is changed from COM number 3 to COM number 1, the discharge amount changes to +0.19 ng, and the liquid in the pixel after COM replacement is changed. Since the amount was 40.10 (= 39.91 + 0.19) ng, the 74th nozzle was selected as the COM replacement nozzle.

  As in this embodiment, when nozzles with the same COM number exist in the same pixel, any nozzle may be selected. Therefore, in this embodiment, it is possible to select any of the 75th and 77th nozzles having the same COM number 3 as the 74th nozzle as the COM replacement nozzle.

  On the other hand, by replacing the 74th nozzle from COM number 3 to COM number 1, a COM replacement complementary nozzle to be replaced with COM number 3 is selected from the nozzles to which other COM numbers 1 are assigned. Among these, the pixel (the other arrangement region) in which the liquid amount in the pixel is closest to the target value by switching to COM number 3 is the first pixel including the 13th nozzle. When the 13th nozzle is changed from COM No. 1 to COM No. 3, the discharge amount changes to −0.19 ng, and the amount of liquid in the pixel after COM replacement is 40.00 (= 40.19−0.19) ng. Therefore, the 13th nozzle was selected as the COM replacement complementary nozzle.

  As a result, in the second COM replacement, the amount of liquid in the pixel before the COM replacement of the tenth pixel (the amount of arrangement before one COM replacement) is 39.91 ng (difference -0.09 ng). Since the amount of liquid in the pixel after the COM replacement of the second pixel (an amount after the other COM replacement) is 40.00 ng (difference ± 0.00 ng), the effect of the COM replacement was obtained.

  Therefore, the third COM replacement was performed. After this third COM replacement, the difference [ng] in the amount of liquid in the pixel from the target value (40 ng) of the pixels (pixel numbers 1 to 23), and the COM number after the COM replacement of each nozzle selected to be ejected Change amount [ng] of the discharge amount corresponding to 1 to 4, COM numbers 1 to 4 after COM replacement, correction amount [ng] of COM numbers 1 to 4, and discharge amount [ng] after correction, Tables 6A to 6D show a summary of the in-pixel liquid amount [ng] after the COM replacement of each pixel (pixel numbers 1 to 23).

  In the third COM replacement, as shown in Tables 6A to 6D, the pixel (one arrangement region) farthest from the target value is the 22nd pixel, the liquid amount in the pixel is 39.81 ng, and the target The difference from the value is -0.19 ng. In the 22nd pixel, the 158th to 161st nozzles are selected. Among these, in order to bring the difference from the target value closer to 0, when the 158th nozzle is changed from COM number 2 to COM number 1, the discharge amount changes to +0.10 ng, and the liquid in the pixel after COM replacement is changed. Since the amount was 39.91 (= 39.81 + 0.10) ng, the 74th nozzle was selected as the COM replacement nozzle.

  On the other hand, by replacing the 158th nozzle from COM number 1 to COM number 2, the COM replacement complementary nozzle to be replaced with COM number 1 is selected from the nozzles assigned with other COM numbers 2. Among these, the pixel (the other arrangement region) in which the liquid amount in the pixel is closest to the target value by switching to COM number 1 is the tenth pixel including the 74th nozzle. When the 74th nozzle is changed from COM number 1 to COM number 2, the discharge amount changes to -0.10 ng, and the amount of liquid in the pixel after COM replacement is 40.00 (= 40.10-0.10) ng. Therefore, the 74th nozzle was selected as the COM replacement complementary nozzle.

  As a result, in the third COM replacement, the liquid amount in the pixel before COM replacement of the 22nd pixel (arrangement amount before one COM replacement) is 39.81 ng (difference -0.19 ng), whereas 10 Since the amount of liquid in the pixel after the COM replacement of the second pixel (an amount after the other COM replacement) is 40.00 ng (difference ± 0.00 ng), the effect of the COM replacement was obtained.

  Therefore, the fourth COM replacement was performed. After the fourth COM replacement, the difference [ng] in the amount of liquid in the pixel from the target value (40 ng) of the pixel (pixel number 1 to 23) and the COM number after the COM replacement of each nozzle selected to be ejected Change amount [ng] of the discharge amount corresponding to 1 to 4, COM numbers 1 to 4 after COM replacement, correction amount [ng] of COM numbers 1 to 4, and discharge amount [ng] after correction, Tables 7A to 7D show a summary of the in-pixel liquid amount [ng] after COM replacement of each pixel (pixel numbers 1 to 23).

  In the fourth COM replacement, as shown in Tables 7A to 7D, the pixel (one arrangement region) farthest from the target value is the fifteenth pixel, the liquid amount in the pixel is 40.15 ng, and the target The difference from the value is +0.15 ng. In the 15th pixel, the 95th to 98th nozzles are selected. Of these, in order to bring the difference from the target value closer to 0, when the 98th nozzle is changed from COM number 3 to COM number 4, the discharge amount changes to -0.09 ng, and the pixel inside the COM after replacement is changed. Since the liquid amount was 40.06 (= 40.15-0.09) ng, the 98th nozzle was selected as the COM replacement nozzle.

  On the other hand, by replacing the 98th nozzle from COM number 3 to COM number 4, a COM replacement complementary nozzle to be replaced with COM number 3 is selected from the nozzles assigned with other COM numbers 4. Among these, the pixel (the other arrangement region) in which the liquid amount in the pixel is closest to the target value by replacing with COM number 3 is the 13th pixel including the 97th nozzle. When the 97th nozzle is changed from COM number 4 to COM number 3, the discharge amount changes to +0.10 ng, and the amount of liquid in the pixel after COM replacement becomes 40.05 (= 39.95 + 0.10) ng. Therefore, the 97th nozzle was selected as a COM replacement complementary nozzle.

  As a result, in the fourth COM replacement, the amount of liquid in the pixel (composition amount before one COM replacement) of the 15th pixel before COM replacement is 40.15 ng (difference +0.15 ng), whereas the 13th Since the amount of liquid in the pixel after the replacement of the pixel (the amount after the other COM replacement) was 40.05 ng (difference +0.05 ng), the effect of the COM replacement was obtained.

  Therefore, the fifth COM replacement was performed. After the fifth COM replacement, the difference [ng] in the amount of liquid in the pixel from the target value (40 ng) of the pixels (pixel numbers 1 to 23), and the COM number after the COM replacement of each nozzle selected to be ejected Change amount [ng] of the discharge amount corresponding to 1 to 4, COM numbers 1 to 4 after COM replacement, correction amount [ng] of COM numbers 1 to 4, and discharge amount [ng] after correction, Tables 8A to 8D show a summary of the in-pixel liquid amount [ng] after COM replacement of each pixel (pixel numbers 1 to 23).

  In the fifth COM replacement, as shown in Tables 8A to 8D, the pixel (one arrangement region) most deviated from the target value is the 19th pixel, the liquid amount in the pixel is 39.86 ng, and the target The difference from the value is -0.14 ng. In the 19th pixel, the 137th to 140th nozzles are selected. Here, each of the 137th to 140th nozzles has COM number 1, and even if the COM number of any nozzle is replaced, the difference from the target value cannot be brought close to zero. For this reason, when the effect by COM replacement cannot be obtained, the fifth COM replacement is not performed, and the setting of correction of the discharge amount of each nozzle is completed.

  Table 9 below shows a summary of the amount of liquid in a pixel before correction, the amount of liquid in a pixel after correction, and the amount of liquid in a pixel after replacement of COM for each pixel. A graph of Table 9 is shown in FIG.

  As shown in Table 9 and FIG. 12, according to the present embodiment, by repeatedly performing the above-described COM replacement, the amount of liquid disposed in each pixel (the amount of liquid in the pixel) is further set to the target value. It is possible to approach (40 ng).

  DESCRIPTION OF SYMBOLS 200 ... Liquid body discharge apparatus 10 ... Head unit 11, 12 ... Discharge head 21A, 21B ... Nozzle array 30 ... Control circuit board (control part) 50 ... Arrangement area n ... Nozzle P ... Board | substrate (discharge target object)

Claims (16)

In the liquid material ejection apparatus including the ejection head having a plurality of nozzles, the liquid material is ejected from the plurality of nozzles while performing a scan for moving the ejection head relative to the ejection object. A liquid material that sets at least one of a plurality of driving conditions for each of the plurality of nozzles when a predetermined amount of the liquid material is respectively disposed in a plurality of arrangement regions provided in the discharge target. A drive setting method for a discharge device,
A step of setting at least one drive condition among the plurality of drive conditions for each of the plurality of nozzles;
B step of selecting and setting at least one corresponding nozzle that is opposed to each of the plurality of arrangement regions in the scanning and that discharges the liquid material from the plurality of nozzles;
Each of the plurality of arrangement regions is based on the driving condition set for each of the plurality of nozzles in the A step and the corresponding nozzle set for each of the plurality of arrangement regions in the B step. C step of obtaining the arrangement amount of the liquid material arranged in
D step of selecting a first arrangement area and a second arrangement area from the plurality of arrangement areas;
The drive condition of the first nozzle that is the corresponding nozzle in the first arrangement area is determined from the first drive condition set for the first nozzle in the step A, and the correspondence of the second arrangement area. E step of changing to the second driving condition set for the second nozzle which is a nozzle;
F step of changing the driving condition of the second nozzle from the second driving condition set for the second nozzle in the A step to the first driving condition,
The arrangement amount of the liquid material in the first arrangement region acquired in the C step is set as a first arrangement amount,
The arrangement amount of the liquid material in the second arrangement region acquired in the C step is set as a second arrangement amount,
By changing the driving condition of the first nozzle from the first driving condition to the second driving condition in the E step, the arrangement amount of the liquid material in the first arrangement region is changed to the first arrangement condition. From the amount of placement to the third placement amount,
By changing the driving condition of the second nozzle from the second driving condition to the first driving condition in the F step, the arrangement amount of the liquid material in the second arrangement region is changed to the second condition. A drive setting method for a liquid material discharge apparatus, wherein the arrangement amount is set to a fourth arrangement amount. In step D,
Selecting the first arrangement area such that the first arrangement quantity is different from a target arrangement quantity set in advance for each of the plurality of arrangement areas;
2. The drive setting method for a liquid material ejection apparatus according to claim 1, wherein the second arrangement region is selected so that the second arrangement amount is different from the target arrangement amount. In step D,
The first arrangement region is selected so that a difference between the third arrangement amount and the target arrangement amount is smaller than a difference between the first arrangement amount and the target arrangement amount. Item 3. A drive setting method for a liquid material discharge device according to Item 2. In step D,
The second arrangement region is selected so that a difference between the fourth arrangement amount and the target arrangement amount is smaller than a difference between the second arrangement amount and the target arrangement amount. Item 4. The drive setting method of the liquid material discharge device according to Item 2 or 3. In step D,
5. The liquid material according to claim 2, wherein the first arrangement region is selected so that a difference between the first arrangement amount and the target arrangement amount is maximized. Discharge device drive setting method. In step D,
The first arrangement area and the second arrangement are such that the magnitude relationship between the first arrangement quantity and the target arrangement quantity is opposite to the magnitude relation between the second arrangement quantity and the target arrangement quantity. The drive region setting method for a liquid material discharge apparatus according to any one of claims 2 to 5, wherein an arrangement region is selected.   When the difference between the fourth arrangement amount and the target arrangement amount is larger than the difference between the first arrangement amount and the target arrangement amount, the D step, the E step, the F step, These are repeated in this order, The drive setting method of the liquid discharge apparatus as described in any one of Claims 2-6 characterized by the above-mentioned. In step D,
The first placement region and the second placement region are adjacent to each other;
2. The liquid material according to claim 1, wherein the first arrangement region and the second arrangement region are selected so that the first arrangement amount and the second arrangement amount are different from each other. Discharge device drive setting method. In step D,
The first arrangement area and the second arrangement area that are adjacent to each other are selected so that a difference between the first arrangement quantity and the second arrangement quantity is maximized. The drive setting method of the liquid discharge apparatus of 8. In step D,
The first arrangement area adjacent to each other and the first arrangement area so that a difference between the third arrangement quantity and the fourth arrangement quantity is smaller than a difference between the first arrangement quantity and the second arrangement quantity. 10. The drive setting method for a liquid material discharge apparatus according to claim 8, wherein the second arrangement area is selected. In step A,
Dividing the plurality of nozzles into a plurality of groups each having a nozzle group composed of a plurality of the nozzles having the same driving conditions set;
11. The driving condition is set for each group based on a statistical value of a discharge amount of each nozzle of the nozzle group included in each of the plurality of groups. The drive setting method of the liquid discharge apparatus of description. In step B,
A plurality of corresponding nozzles that are opposed to each of the plurality of arrangement regions in the scanning and that discharge the liquid material are selected from the plurality of nozzles and set.
In the step C, the total amount of the discharge amounts of the plurality of corresponding nozzles in each of the plurality of arrangement regions is obtained as the arrangement amount of the liquid material arranged in each of the plurality of arrangement regions.
Selecting one of the plurality of corresponding nozzles set in the first arrangement region as the first nozzle;
The one corresponding nozzle of the plurality of corresponding nozzles set in the second arrangement region is selected as the second nozzle. 12. Drive setting method for liquid material ejection device.   13. The corresponding nozzle for which the drive condition with the largest discharge amount is set is selected as the first nozzle from the plurality of corresponding nozzles in the first arrangement region. Drive setting method for liquid material ejection device.   The said corresponding nozzle with which the said driving condition with the smallest discharge amount is set is selected as a said 2nd nozzle from the said some corresponding nozzle of a said 2nd arrangement | positioning area | region. The drive setting method of the liquid discharge apparatus as described in 2. The liquid material ejection device has a configuration in which a plurality of the ejection heads are arranged side by side,
The liquid discharge device according to any one of claims 1 to 14, wherein the first nozzle and the second nozzle are selected from the plurality of nozzles of the same discharge head. Drive setting method. In the liquid material ejection apparatus including the ejection head having a plurality of nozzles, the liquid material is ejected from the plurality of nozzles while performing a scan for moving the ejection head relative to the ejection object. A liquid material that sets at least one of a plurality of driving conditions for each of the plurality of nozzles when a predetermined amount of the liquid material is respectively disposed in a plurality of arrangement regions provided in the discharge target. A drive setting program for the discharge device,
A drive setting program for a liquid material discharge apparatus, wherein the drive setting method for the liquid material discharge apparatus according to any one of claims 1 to 15 is executed.

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