Ink-jet printing method, device and system and computer readable storage medium

Abstract

The invention discloses an ink-jet printing method, device and system and a computer readable storage medium, and the method comprises the steps: determining an ink droplet printing position corresponding to an ink-jet groove according to the target film thickness of a substrate, the size information of the ink-jet groove in the substrate, a preset ink droplet spacing and a preset maximum film thickness; an ink jet volume corresponding to each ink jet port in the ink jet head is taken, and a target distribution relation is determined based on the ink jet volumes; and determining a compensation ink jet volume based on the target distribution relation and a preset distribution relation, and performing compensation ink jet printing on the ink droplet printing position based on the compensation ink jet volume. The film thickness is controlled by determining the ink droplet printing position corresponding to the ink jet groove, the precision of controlling the film thickness is higher than that of controlling the distance, and the accuracy of controlling the ink jet thickness in the ink jet groove is further improved by determining the compensation ink jet volume when printing is carried out at the ink droplet printing position.

Description

Technical Field

[0001] The present application relates to the field of substrate printing technology, and in particular to an inkjet printing method, device, system and computer-readable storage medium. Background Art

[0002] The current display substrates are mainly divided into side by side substrates and line bank substrates. ITO electrodes are distributed in each bank slot of the line bank substrate. In the process of preparing the line bank substrate, inkjet printing is required in each bank slot (inkjet slot) according to the target inkjet thickness.

[0003] The existing inkjet printing controls the total number of ink drops printed in the bank slot by controlling the spacing between each ink drop printed, and then controls the inkjet thickness in the bank slot to reach the target inkjet thickness. However, due to the limited adjustment accuracy of the spacing, the accuracy of the inkjet thickness control in the bank slot is low. Therefore, how to improve the accuracy of the inkjet thickness control in the bank slot is an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide an inkjet printing method, device, system and computer-readable storage medium, which can improve the accuracy of inkjet thickness control in a bank slot.

[0005] In a first aspect, an embodiment of the present application provides an inkjet printing method, the method comprising:

[0006] Determining the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness;

[0007] Acquire the inkjet volume corresponding to each inkjet port in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0008] A compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and compensation inkjet printing is performed on the ink drop printing position based on the compensation inkjet volume.

[0009] In a second aspect, an embodiment of the present application provides an inkjet printing device comprising: an inkjet head, a driving module and a measuring module;

[0010] The calculation module includes a first determination unit, a second determination unit and a compensation unit;

[0011] The first determining unit is used to determine the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness;

[0012] The driving module is used to drive the inkjet head to move to the ink drop printing position;

[0013] The second determining unit is used to obtain the inkjet volume corresponding to each inkjet port in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0014] The compensation unit is used to determine the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship;

[0015] The inkjet head is used to perform inkjet printing at each of the ink drop printing positions, and perform compensatory inkjet printing on the ink drop printing positions based on the compensatory inkjet volume.

[0016] In a third aspect, an embodiment of the present application further provides an inkjet printing system, comprising a memory storing a plurality of instructions; a processor loads instructions from the memory to execute the steps of any one of the inkjet printing methods provided in the embodiments of the present application.

[0017] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, which stores a plurality of instructions suitable for loading by a processor to execute the steps of any one of the inkjet printing methods provided in the embodiments of the present application.

[0018] In a fifth aspect, an embodiment of the present application further provides a computer program product, including a computer program or instructions, which, when executed by a processor, implements the steps of any one of the inkjet printing methods provided in the embodiments of the present application.

[0019] Adopting the scheme of the application embodiment, the ink drop printing position corresponding to the inkjet slot is determined according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink drop spacing and the preset maximum film thickness; the inkjet volume corresponding to each inkjet port in the inkjet head is taken, and the target distribution relationship is determined based on the inkjet volume; the compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and the ink drop printing position is compensated for inkjet printing based on the compensation inkjet volume. The film thickness is controlled by determining the ink drop printing position corresponding to the inkjet slot, which has higher accuracy than controlling the film thickness by controlling the spacing, and the accuracy of inkjet thickness control in the inkjet slot is further improved by determining the compensation inkjet volume when printing at the ink drop printing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of an embodiment of the inkjet printing method provided in the embodiments of the present application;

[0022] Figure 2 is a schematic diagram of the substrate structure provided in an embodiment of the present application;

[0023] Figure 3 is a schematic structural diagram of an inkjet printing device provided in an embodiment of the present application;

[0024] Figure 4 It is a schematic diagram of the structure of the inkjet printing system provided in the embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. At the same time, in the description of the embodiments of the present application, the terms "first", "second", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] Embodiments of the present application provide an inkjet printing method, device, system, and computer-readable storage medium.

[0027] Specifically, the embodiments of the present application will be described from the perspective of an inkjet printing system, and the inkjet printing system can be specifically integrated in an inkjet printing device, that is, the inkjet printing method of the embodiments of the present application can be executed by the inkjet printing system.

[0028] The inkjet printing method provided in the embodiment of the present application can be applied to an inkjet printing device, which may include devices such as printers and smart printers.

[0029] The following is a detailed description in conjunction with the accompanying drawings. In the embodiments of the present application, the execution subject is an inkjet printing system as an example. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments. Although the logical order is shown in the flow chart, in some cases, the steps shown or described may be performed in an order different from that shown in the drawings.

[0030] Please refer to Figure 1 The specific process of the first embodiment of the inkjet printing method includes the following steps:

[0031] Step 101, determining the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness;

[0032] Step 102, obtaining the inkjet volume corresponding to each inkjet port in the inkjet head, and determining the target distribution relationship based on the inkjet volume;

[0033] Step 103: determine a compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and perform compensation inkjet printing on the ink drop printing position based on the compensation inkjet volume.

[0034] In this embodiment, the substrate to be inkjet printed is a line bank substrate, and ITO electrodes are distributed in each bank slot of the line bank substrate. In the manufacturing process, inkjet printing needs to be performed in each bank slot so that the inkjet thickness in each bank slot reaches the target film thickness. Correspondingly, the bank slot can be defined as an inkjet slot. When relevant personnel place the substrate to be inkjet printed at the printing position of the printer, the inkjet printing system in the printer obtains the pre-set target film thickness and the size information of the inkjet slot in the substrate, and determines the target number of ink droplets to be printed in the inkjet slot according to the target film thickness of the substrate and the size information of the inkjet slot in the substrate. The inkjet printing system determines the target number of ink droplets to be printed in the inkjet slot according to the inkjet printing. The ink droplet arrangement information in the inkjet slot is determined based on the size information of the ink slot, the preset ink droplet spacing and the preset maximum film thickness; the inkjet printing system determines all ink droplet printing positions corresponding to the inkjet slot according to the target ink droplet number and the ink droplet arrangement information, and when performing inkjet printing at each ink droplet printing position, obtains the inkjet volume corresponding to each inkjet port in the inkjet head, and determines the target distribution relationship based on the inkjet volume corresponding to each inkjet port; if the target distribution relationship meets the preset conditions, the compensatory inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and the ink droplet printing position is compensated for inkjet printing based on the compensatory inkjet volume.

[0035] It should be noted that the inkjet head is an inkjet device on a printer, and the inkjet head includes multiple inkjet ports, which are used to output ink. The ink output from the multiple inkjet ports converges into a drop of ink and is printed at the ink drop printing position; the target distribution relationship is the normal distribution relationship obeyed by the inkjet volume corresponding to each inkjet port in the inkjet head, and the preset distribution relationship is the optimal normal distribution relationship obeyed by the inkjet volume corresponding to each inkjet port in the inkjet head. When the inkjet head is working continuously, the inkjet port may be blocked, resulting in the ink drop volume output by the inkjet head failing to reach the preset target ink drop volume. Therefore, it is necessary to determine the compensatory inkjet volume based on the target distribution relationship and the preset distribution relationship, and perform compensatory inkjet printing on the ink drop printing position based on the compensatory inkjet volume, thereby improving the accuracy of inkjet thickness control in the inkjet slot.

[0036] The inkjet printing system of this embodiment determines the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness; when performing inkjet printing at each ink droplet printing position, the inkjet volume corresponding to each inkjet port in the inkjet head is obtained, and the target distribution relationship is determined based on the inkjet volume corresponding to each inkjet port; if the target distribution relationship meets the preset conditions, the compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and the ink droplet printing position is compensated for inkjet printing based on the compensation inkjet volume. Controlling the film thickness by determining the ink droplet printing position corresponding to the inkjet slot has higher accuracy than controlling the spacing to control the film thickness, and by determining the compensation inkjet volume when printing at the ink droplet printing position, the accuracy of inkjet thickness control in the inkjet slot is further improved.

[0037] Specifically, each step is described in detail below:

[0038] Step 101, determining the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness;

[0039] In this step, before performing inkjet printing, the relevant personnel first input the target film thickness of the ink to be printed in the inkjet slot of the substrate into the printer and place the substrate to be inkjet printed at the printing position of the printer. After completing the above operations, the relevant personnel input a start command to the printer. When receiving the start command, the inkjet printing system in the printer obtains the target film thickness of the substrate input in advance, scans the substrate at the printing position, determines the size information of the inkjet slot in the substrate, and then presets the ink droplet spacing and the preset maximum film thickness according to the target film thickness of the substrate and the size information of the inkjet slot in the substrate, and determines the ink droplet printing position corresponding to the inkjet slot.

[0040] It should be noted that the structure of the substrate is Figure 2As shown, the substrate is a line bank substrate, and a plurality of bank slots are arranged on the line bank substrate. An ITO electrode and exposed glass are arranged on each bank slot, and the surface of the line bank substrate is covered with photoresist. The present invention needs to perform inkjet printing on each bank slot on the line bank substrate based on the ink drop printing position, so that the thickness of the film formed in the bank slot by the ink printed on each bank slot reaches the target film thickness.

[0041] It should be noted that the printer is equipped with a dimension measuring device, which may be a mirror measuring instrument, a laser rangefinder, an image measuring instrument, etc. Since the dimension information of each inkjet slot in the substrate is the same, the inkjet printing system in the printer only needs to measure the dimension information of any inkjet slot in the substrate. For example, taking the image measuring instrument as an example, the inkjet printing system uses the camera in the image measuring instrument on the printer to capture the image of the substrate, and uses image processing technology to analyze and measure any inkjet slot in the image of the substrate to determine the dimension information of the inkjet slot.

[0042] Specifically, step 101 includes:

[0043] Step 1011, determining a target number of ink droplets to be printed in the inkjet slot according to a target film thickness of the substrate and size information of the inkjet slot in the substrate;

[0044] In this step, the inkjet printing system determines the length and width of the inkjet slot according to the size information of the inkjet slot in the substrate, and then calculates the total inkjet volume required to form the coating in the inkjet slot to achieve the target film thickness based on the target film thickness of the substrate and the length and width of the inkjet slot. It can be understood that the total inkjet volume can be calculated by multiplying the target film thickness of the substrate by the length and width of the inkjet slot. The inkjet printing system calculates the target number of ink drops to be printed in the inkjet slot based on the preset ink drop volume and the total inkjet volume; specifically, the preset ink drop volume is the volume of a drop of ink printed by the printer, and the preset ink drop volume can be adjusted according to the specific situation; the inkjet printing system divides the total inkjet volume by the preset ink drop volume to calculate the target number of ink drops to be printed in the inkjet slot.

[0045] Step 1012, determining the number of ink droplet rows and the number of ink droplets per row in the inkjet slot according to the size information of the inkjet slot, the preset ink droplet spacing, and the preset maximum film thickness;

[0046] In this step, the inkjet printing system calculates the maximum total inkjet volume corresponding to the inkjet slot according to the size information of the inkjet slot and the preset maximum film thickness, and calculates the maximum number of printed ink drops corresponding to the inkjet slot according to the maximum total inkjet volume and the preset ink drop volume. The inkjet printing system determines the number of ink drop rows and the number of ink drops per row in the inkjet slot according to the size information of the inkjet slot, the maximum number of printed ink drops and the preset ink drop spacing. It can be understood that the preset maximum film thickness is the maximum value of the thickness of the film formed in the inkjet slot, the preset ink drop spacing is the distance between every two ink droplets printed by the inkjet slot during the inkjet printing process, the inkjet printing system determines the length and width of the inkjet slot according to the size information of the inkjet slot, determines the number of ink drop rows in the inkjet slot according to the width and the preset ink drop spacing, determines the number of ink drop rows in the inkjet slot according to the number of ink drop rows, the length and the preset ink drop spacing, and then determines the ink drop arrangement information in the inkjet slot according to the number of ink drop rows and the number of ink drop rows.

[0047] Exemplarily, the number of ink droplet rows in the inkjet slot of the inkjet printing system is 5 rows, and the number of ink droplets in each row is 10. Correspondingly, the ink droplet arrangement information in the inkjet slot is a 5*10 ink droplet arrangement array, and the spacing between each ink droplet is a preset ink droplet spacing. It should be noted that the ink droplet printing positions in the inkjet slot specified by the ink droplet arrangement information are evenly distributed in the inkjet slot, which is convenient for improving the uniformity of ink droplets during subsequent inkjet printing, thereby improving the uniformity of inkjet film thickness in the inkjet slot.

[0048] Step 1013, dividing the inkjet slot into an ink drop arrangement array according to the number of ink drop rows and the number of ink droplets per row;

[0049] In this step, the inkjet printing system obtains the number of ink droplet rows and the number of ink droplets per row in the ink droplet arrangement information, and divides the inkjet slot into an ink droplet arrangement array according to the number of ink droplet rows and the number of ink droplets per row. Specifically, a scanning device is installed in the printer, and the inkjet printing system obtains the image of the inkjet slot through the scanning device, and divides the image of the inkjet slot into an ink droplet arrangement array according to the number of ink droplet rows and the number of ink droplets per row, so as to determine the ink droplet arrangement array on the image of the inkjet slot, so as to facilitate printing based on the ink droplet arrangement array on the image of the inkjet slot in the subsequent printing process, thereby improving the accuracy and efficiency of printing.

[0050] Step 1014: determining the ink droplet printing position corresponding to the inkjet slot in the ink droplet arrangement array according to the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row.

[0051] In this step, the inkjet printing system determines the target printing rows and target printing columns in the ink droplet arrangement array according to the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets in each row, and then determines the corresponding ink droplet printing positions in the inkjet slot according to the target printing rows and target printing columns, and performs inkjet printing at the ink droplet printing positions.

[0052] Further, determining the ink droplet printing position corresponding to the inkjet slot in the ink droplet arrangement array according to the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row includes:

[0053] Step 10141, calculating a threshold value of a range of the number of ink drops according to the number of ink drop rows and the number of ink drops per row;

[0054] In this step, the inkjet printing system calculates the ink drop number range threshold value based on the number of ink drop rows and the number of ink droplets per row. Specifically, the inkjet printing system multiplies the number of ink drop rows and the number of ink droplets per row to obtain an ink drop number threshold set, and then determines the ink drop number range threshold value based on the ink drop number threshold set. Exemplarily, the number of ink drop rows is 5, and the number of ink droplets per row is n. The ink drop number threshold set includes: n, 2n, 3n, 4n, 5n, and the ink drop number range threshold value includes (0,n], (n,2n], (2n,3n], (3n,4n], (4n,5n].

[0055] Step 10142, comparing the target ink drop number with the ink drop number range threshold, and determining a target printing row in the ink drop arrangement array according to the comparison result and the ink drop row number;

[0056] In this step, the inkjet printing system compares the target number of ink droplets with each ink droplet number range threshold value respectively, and determines which ink droplet number range threshold value the target number of ink droplets falls into based on the comparison result, and then determines the target printing row in the ink droplet arrangement array based on the corresponding ink droplet number range threshold value and the number of ink droplet rows.

[0057] Further, step 10142 includes:

[0058] Step 101421, determining the number of print lines according to the comparison result, and determining a print line distribution rule according to the number of ink droplet lines;

[0059] In this step, the inkjet printing system determines which ink drop number range threshold the target ink drop number falls into based on the comparison result, and then determines the number of print lines based on the corresponding ink drop number range threshold, and determines the print line distribution rule based on the number of ink drop lines. Specifically, the inkjet printing system obtains the maximum value of the ink drop number range threshold that the target ink drop number falls into, calculates the multiple relationship between the maximum value and the number of ink droplets per line, and then determines the number of print lines based on the multiple relationship, such as: the multiple relationship between the maximum value and the number of ink droplets per line is 2, and the number of print lines is determined to be 2; the multiple relationship between the maximum value and the number of ink droplets per line is 3, and the number of print lines is determined to be 3. The inkjet printing system sets the print line distribution rules corresponding to odd and even numbers of ink drop lines in advance, and the print line distribution rules make the lines that need to be inkjet printed evenly distributed in the inkjet slot.

[0060] Step 101422: Determine the target printing row in the ink drop arrangement array according to the number of printing rows and the printing row distribution rule.

[0061] In this step, the inkjet printing system determines the target printing row in the ink drop arrangement array according to the number of printing rows and the printing row distribution rule. Specifically, when the inkjet printing system determines that the printing row distribution rule is the printing row distribution rule corresponding to an odd number of ink drop rows, it is determined whether the number of printing rows is an odd number or an even number. When the number of printing rows is an odd number and is 1, the middle row in the ink drop arrangement array is selected as the target printing row. When the number of printing rows is an odd number and is not 1, the middle row in the ink drop arrangement array is first selected as the target printing row, and then the remaining target printing rows are evenly distributed on both sides of the middle row. When the number of printing rows is an even number, the middle row of the ink drop arrangement array is not used as the target printing row, and the target printing rows are evenly distributed on both sides of the middle row. When the inkjet printing system determines that the print line distribution rule is the print line distribution rule corresponding to an even number of ink droplet rows, it determines whether the number of print lines is odd or even. When the number of print lines is odd and equal to 1, one of the two middle rows in the ink droplet arrangement array is selected as the target print line. When the number of print lines is odd and not 1, the number of print lines is first split into 1 and an even number, and the even-numbered target print lines are evenly distributed on both sides of the row symmetry axis of the ink droplet arrangement array. The remaining 1 target print line is then randomly determined from the remaining rows in the ink droplet arrangement array. When the number of print lines is an even number, the target print lines are evenly distributed on both sides of the row symmetry axis of the ink droplet arrangement array.

[0062] Exemplarily, when the number of ink droplet rows is 5, the inkjet printing system determines that the printing row distribution rule is the printing row distribution rule corresponding to an odd number of ink droplet rows. When the number of printing rows is 1, the middle row, that is, the third row, is selected as the target printing row in the ink droplet arrangement array. When the number of printing rows is 2, the middle row of the ink droplet arrangement array is not used as the target printing row, and the target printing rows are evenly distributed on both sides of the middle row, that is, the second row and the fourth row are selected as the target printing rows. When the number of printing rows is 3, the middle row is selected in the ink droplet arrangement array. That is, the 3rd row is taken as the target printing row, and the remaining target printing rows are evenly distributed on both sides of the middle row, that is, the 2nd row and the 4th row are selected as the target printing rows, or the 1st row and the 5th row are selected as the target printing rows. When the number of printing rows is 4, the middle row of the ink drop arrangement array is not taken as the target printing row, and the target printing rows are evenly distributed on both sides of the middle row, that is, the 1st row, the 2nd row, the 4th row and the 5th row are selected as the target printing rows. When the number of printing rows is 5, each row of the ink drop arrangement array is taken as the target printing row.

[0063] Exemplarily, when the number of ink droplet rows is 4, the inkjet printing system determines the printing row distribution rule as the printing row distribution rule corresponding to an even number of ink droplet rows. When the number of printing rows is 1, one of the two middle rows in the ink droplet arrangement array is selected as the target printing row, that is, the second row or the third row is selected as the target printing row. When the number of printing rows is 2, the target printing rows are evenly distributed on both sides of the row symmetry axis of the ink droplet arrangement array, that is, the first row and the fourth row are selected as the target printing rows, or the second row and the third row are selected as the target printing rows. When the number of printing rows is 3, the number of printing rows is first split into 1 and 2, and the two target printing rows are evenly distributed on both sides of the row symmetry axis of the ink droplet arrangement array, that is, the first row and the fourth row are selected as the target printing rows, or the second row and the third row are selected as the target printing rows, and then the remaining 1 target printing row is randomly determined from the remaining rows in the ink droplet arrangement array. When the number of printing rows is 4, each row of the ink droplet arrangement array is used as a target printing row.

[0064] Step 10143, determining a target printing column in the target printing row according to the target number of ink drops and the number of ink drops per row;

[0065] In this step, the inkjet printing system sets in advance the print column distribution rules corresponding to the odd and even numbers of ink droplets per row, and the print column distribution rules make the positions where inkjet printing is required to be evenly distributed in the target print row. The inkjet printing system determines the target print column in the target print row according to the target number of ink droplets and the print column distribution rules corresponding to the number of ink droplets per row.

[0066] Further, step 10143 includes:

[0067] Step 101431, determining a print column distribution rule according to the number of ink drops per row;

[0068] In this step, the inkjet printing system determines whether the number of ink drops per row is odd or even, and then determines whether the print column distribution rule corresponds to the odd number of ink drops per row or the even number of ink drops per row.

[0069] Step 101432, comparing the target number of ink drops with the number of ink drops per row;

[0070] In this step, the inkjet printing system compares the target number of ink drops with the number of ink drops per line.

[0071] Step 101433, if the target number of ink drops is not greater than the number of ink drops per row, determining a target print column in the target print row according to the print column distribution rule;

[0072] In this step, if the inkjet printing system determines that the target number of ink drops is not greater than the number of ink drops per row, it means that the number of target printing rows is 1 at this time, and the target printing column is determined in the target printing row according to the printing column distribution rule. Specifically, when the inkjet printing system determines that the printing column distribution rule is the printing column distribution rule corresponding to the odd number of ink drops per row, it is determined whether the target number of ink drops is an odd number or an even number. When the target number of ink drops is an odd number and is 1, the middle column in the target printing column is selected as the target printing column. When the target number of ink drops is an odd number and is not 1, the middle column in the target printing column is first selected as the target printing column, and then the remaining target printing columns are evenly distributed on both sides of the middle column. When the target number of ink drops is an even number, the middle column of the target printing column is not used as the target printing column, and the target printing columns are evenly distributed on both sides of the middle column. When the inkjet printing system determines that the printing row distribution rule is the printing row distribution rule corresponding to the even number of ink droplets in each row, it determines whether the target number of ink droplets is odd or even. When the target number of ink droplets is odd and equal to 1, one of the two middle columns in the target printing column is selected as the target printing column. When the target number of ink droplets is odd and not 1, the target number of ink droplets is first split into 1 and an even number, and the even-numbered target printing columns are evenly distributed on both sides of the column symmetry axis of the target printing row, and the remaining 1 target printing column is randomly determined in the remaining rows of the target printing row. When the target number of ink droplets is an even number, the target printing columns are evenly distributed on both sides of the row symmetry axis of the target printing row.

[0073] Exemplarily, when the number of ink drops per row is 5, the inkjet printing system determines that the print column distribution rule is the print column distribution rule corresponding to an odd number of ink drops per row. When the target number of ink drops is 1, the middle column, that is, the third column, is selected as the target print row in the target print row. When the target number of ink drops is 2, the middle column of the target print row is not used as the target print column, and the target print columns are evenly distributed on both sides of the middle column, that is, the second column and the fourth column are selected as the target print columns. When the target number of ink drops is 3, the middle column is selected as the third column in the target print row. That is, the third column is taken as the target printing row, and the remaining target printing rows are evenly distributed on both sides of the middle column, that is, the second and fourth columns are selected as the target printing columns or the first and fifth columns are selected as the target printing rows. When the target number of ink droplets is 4, the middle column of the target printing row is not taken as the target printing column, and the target printing columns are evenly distributed on both sides of the middle column, that is, the first, second, fourth and fifth columns are selected as the target printing columns. When the target number of ink droplets is 5, each column of the target printing row is taken as the target printing column.

[0074] Exemplarily, when the number of ink droplets per row is 4, the inkjet printing system determines the printing column distribution rule as the printing column distribution rule corresponding to an even number of ink droplets per row. When the target number of ink droplets is 1, one of the middle two columns in the target printing row is selected as the target printing column, that is, the second column or the third column is selected as the target printing column. When the target number of ink droplets is 2, the target printing columns are evenly distributed on both sides of the column symmetry axis of the target printing row, that is, the first column and the fourth column are selected as the target printing columns or the second column and the third column are selected as the target printing columns. When the target number of ink droplets is 3, the target number of ink droplets is first split into 1 and 2, and the two target printing columns are evenly distributed on both sides of the column symmetry axis of the target printing row, that is, the first column and the fourth column are selected as the target printing columns or the second column and the third column are selected as the target printing columns, and then the remaining one target printing column is randomly determined from the remaining columns in the target printing row. When the target number of ink droplets is 4, each column of the target printing row is used as the target printing column.

[0075] Further, the printing column distribution rule can also be: the number of ink droplets per row is n, the target number of ink droplets is x. When x ≥ n - x, that is, the number of target ink droplets in the target printing row is greater than or equal to the number of empty ink droplets, so the target printing row is divided into n - x + 1 parts, and each part has n / (n - x + 1) ink droplet positions. Then, after printing each ink droplet, one (taking the integer) is skipped. In this case, there will be a non - divisible situation. In order to further optimize the position of the empty ink droplets to be evenly distributed as much as possible in the middle, the remainder is defined as Q. At the starting position, Q / 2 (taking the integer) ink droplets need to be printed first, and then one (taking the integer) is skipped after printing each ink droplet; when x < n - x, that is, the number of target ink droplets in the target printing row is less than the number of empty ink droplets, so the target printing row is divided into x + 1 parts, and each part has n / (x + 1) ink droplet positions. Then, one ink droplet is printed after skipping each (taking the integer) empty ink droplet. In this case, there will be a non - divisible situation. In order to further optimize the position of the empty ink droplets to be evenly distributed as much as possible in the middle, the remainder is defined as Q. At the starting position, Q / 2 (taking the integer) ink droplets need to be printed first, and then one ink droplet is printed after skipping each (taking the integer) empty ink droplet.

[0076] Step 101434, if the target number of ink droplets is greater than the number of ink droplets per row, all printing rows and partial printing rows are determined in the target printing row. All columns in the all printing rows are determined as target printing columns, and the target printing columns in the partial printing rows are determined according to the printing column distribution rule.

[0077] In this step, if the inkjet printing system determines that the target number of ink droplets is greater than the number of ink droplets in each row, it means that the number of target printing rows is greater than 1 at this time, and all printing rows and partial printing rows are determined in the target printing rows, all columns in all printing rows are determined as target printing columns, and the total number of ink droplets that can be printed in all printing rows is subtracted from the target number of ink droplets to obtain the remaining number of ink droplets, and the remaining number of ink droplets is used as the target number of ink droplets for partial printing rows, and the target printing columns in the partial printing rows are determined according to the target number of ink droplets and the printing column distribution rule; specifically, for an odd number of printing rows, the inkjet printing system determines the target printing rows distributed in the middle row or on both sides of the middle row as partial printing rows, and determines the remaining target printing rows as all printing rows, and for an even number of printing rows, the inkjet printing system determines one of the target printing rows distributed in the two middle rows as a partial printing row, and determines the remaining target printing rows as all printing rows.

[0078] Step 10144, determining the ink droplet printing position corresponding to the inkjet slot according to the target printing row and the target printing column.

[0079] In this step, after determining the target printing rows and the target printing columns corresponding to each target printing row, the inkjet printing system obtains the ink drop arrangement array of the inkjet slot obtained earlier, and determines the ink drop printing position in the ink drop arrangement array of the inkjet slot according to the target printing rows and the target printing columns.

[0080] Furthermore, the inkjet printing system controls the print head of the printer to stay above each ink drop position on the ink drop arrangement array of the inkjet slot in turn according to a preset printing order, and obtains the row and column information of the ink drop position to which the print head is aligned, and compares the row and column information with the row and column information corresponding to the ink drop printing position, and then detects whether the ink drop position is the ink drop printing position. When it is determined that the detected ink drop position is the ink drop printing position, inkjet printing is performed on the ink drop printing position according to the preset ink drop volume until inkjet printing is completed for all ink drop printing positions.

[0081] Step 102, obtaining the inkjet volume corresponding to each inkjet port in the inkjet head, and determining the target distribution relationship based on the inkjet volume;

[0082] In this step, the inkjet printing system controls the printer to perform inkjet printing at each ink droplet printing position in the inkjet slot, obtains the inkjet volume corresponding to each inkjet port in the inkjet head, and determines the target distribution relationship based on the inkjet volume corresponding to each inkjet port; it can be understood that for each ink droplet printing position, the inkjet printing system generates corresponding voltage information according to the preset target ink droplet volume, and sends the voltage signal to the inkjet head of the printer, so that each inkjet port in the inkjet head outputs a corresponding volume of ink. However, since the inkjet port may be blocked when the inkjet head is working continuously, the volume of ink drops output by the inkjet head cannot reach the preset target ink droplet volume. Therefore, it is necessary to determine the target distribution relationship based on the inkjet volume corresponding to each inkjet port, so as to analyze whether the volume of ink drops output by the inkjet head reaches the preset target ink droplet volume.

[0083] Specifically, step 102 includes:

[0084] Step 1021, obtaining the inkjet volume corresponding to each inkjet port in the inkjet head, and calculating the inkjet volume mean and inkjet volume standard deviation corresponding to the inkjet head based on the inkjet volume corresponding to each inkjet port;

[0085] In this step, the inkjet printing system obtains the inkjet volume corresponding to each inkjet port in the inkjet head, and calculates the inkjet volume mean and inkjet volume standard deviation corresponding to the inkjet head based on the inkjet volume corresponding to each inkjet port. The formula for calculating the inkjet volume mean and inkjet volume standard deviation is as follows:

[0086]

[0087]

[0088] Among them, μ v0 is the mean value of the inkjet volume and σ v0 is the standard deviation of the inkjet volume, m is the number of inkjet ports in the inkjet head, and V[j] represents the ejected ink droplet volume of the jth inkjet port in the inkjet head.

[0089] Step 1022: Determine a target distribution relationship corresponding to the inkjet head based on the inkjet volume mean and the inkjet volume standard deviation.

[0090] In this step, the inkjet printing system determines the target distribution relationship corresponding to the inkjet head based on the mean value of the inkjet volume and the standard deviation of the inkjet volume, wherein the target distribution relationship is a normal distribution relationship, and the target distribution relationship is expressed as: f(x) = \frac{1}{{σ v0 \sqrt{2\pi}}}e^{-\frac{(V[j]-μ v0 )^2}{2σ v0 ^2}}; where μv0 is the mean inkjet volume, σ v0 is the standard deviation of the inkjet volume, \frac is used to represent a fraction, and its full form is “\frac{numerator}{denominator}”, and \sqrt is used to represent a square root, and its full form is “\sqrt{square root}”.

[0091] Step 103: determine a compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and perform compensation inkjet printing on the ink drop printing position based on the compensation inkjet volume.

[0092] In this step, after obtaining the target distribution relationship corresponding to the inkjet head, the inkjet printing system compares the target distribution relationship with the preset distribution relationship. If the comparison result is that the target distribution relationship meets the preset conditions, the compensatory inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and compensatory inkjet printing is performed on the ink droplet printing position based on the compensatory inkjet volume. If the comparison result is that the target distribution relationship does not meet the preset conditions, it means that the ink droplet volume output by the inkjet head reaches the preset target ink droplet volume, or the difference between the ink droplet volume output by the inkjet head and the preset target ink droplet volume is within the preset range. At this time, the inkjet printing system determines that compensatory inkjet printing is not required, and directly executes inkjet printing on the next ink droplet printing position.

[0093] Specifically, step 103 includes:

[0094] Step 1031, obtaining the target maximum distribution probability in the target distribution relationship and the preset maximum distribution probability in the preset distribution relationship;

[0095] In this step, the inkjet printing system obtains the target maximum distribution probability in the target distribution relationship and the preset maximum distribution probability in the preset distribution relationship; specifically, the target distribution relationship is expressed as: f(x) = \frac{1}{{σ v0 \sqrt{2\pi}}}e^{-\frac{(V[j]-μ v0 )^2}{2σ v0 ^2}}, the preset distribution relationship is expressed as: F(x)=\frac{1}{{σ v1 \sqrt{2\pi}}}e^{-\frac{(V[j]-μ v1 )^2}{2σ v1 ^2}}, where μ v1 is the preset mean value of inkjet volume, σ v1 is a preset inkjet volume standard deviation; the inkjet printing system can determine a target maximum distribution probability based on the target distribution relationship, and can determine a preset maximum distribution probability based on the preset distribution relationship.

[0096] Step 1032: if the target maximum distribution probability is greater than the preset maximum distribution probability, then calculating the difference between the target maximum distribution probability and the preset maximum distribution probability, and determining the compensation inkjet volume based on preset mapping information and the difference;

[0097] In this step, after the inkjet printing system obtains the target maximum distribution probability in the target distribution relationship and the preset maximum distribution probability in the preset distribution relationship, the target maximum distribution probability is compared with the preset maximum distribution probability. If it is determined that the target maximum distribution probability is greater than the preset maximum distribution probability, the difference between the target maximum distribution probability and the preset maximum distribution probability is calculated, and the compensatory inkjet volume is determined based on the preset mapping information and the difference; wherein the preset mapping information is a relationship table between the difference between the target maximum distribution probability and the preset maximum distribution probability set in advance and the compensatory inkjet volume. After obtaining the difference, the inkjet printing system can directly query the relationship table to determine the corresponding compensatory inkjet volume.

[0098] Step 1033: perform compensatory inkjet printing on the ink drop printing position based on the compensatory inkjet volume.

[0099] In this step, after determining the compensated inkjet volume, the inkjet printing system determines the corresponding voltage signal according to the compensated inkjet volume, and sends the voltage signal to the inkjet head of the printer, so that the inkjet head outputs the ink of the compensated inkjet volume and prints it at the ink drop printing position.

[0100] The inkjet printing system of this embodiment determines the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness; obtains the inkjet volume corresponding to each inkjet port in the inkjet head, and determines the target distribution relationship based on the inkjet volume; determines the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and performs compensation inkjet printing on the ink droplet printing position based on the compensation inkjet volume. Controlling the film thickness by determining the ink droplet printing position corresponding to the inkjet slot has a higher accuracy than controlling the spacing to control the film thickness, and by determining the compensation inkjet volume when printing at the ink droplet printing position, the accuracy of inkjet thickness control in the inkjet slot is further improved.

[0101] This embodiment also provides an inkjet printing device, which may include a printer, a smart printer, etc. Figure 3 As shown, the inkjet printing device may include:

[0102] An inkjet head, a driving module and a measuring module, wherein the measuring module comprises a first determining unit, a second determining unit and a compensation unit;

[0103] The first determining unit is used to determine the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness;

[0104] The driving module is used to drive the inkjet head to move to the ink drop printing position;

[0105] The second determining unit is used to obtain the inkjet volume corresponding to each inkjet port in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0106] The compensation unit is used to determine the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship;

[0107] The inkjet head is used to perform inkjet printing at each of the ink drop printing positions, and perform compensatory inkjet printing on the ink drop printing positions based on the compensatory inkjet volume.

[0108] In an optional example, the first determining unit is further configured to:

[0109] Determining a target number of ink droplets to be printed in the inkjet slot according to a target film thickness of the substrate and size information of an inkjet slot in the substrate;

[0110] Determining the number of ink droplet rows and the number of ink droplets per row in the inkjet slot according to the size information of the inkjet slot, the preset ink droplet spacing, and the preset maximum film thickness;

[0111] According to the number of ink droplet rows and the number of ink droplets per row, the inkjet slot is divided to obtain an ink droplet arrangement array;

[0112] The ink drop printing position corresponding to the inkjet slot is determined in the ink drop arrangement array according to the target ink drop number, the ink drop row number and the ink drop number per row.

[0113] In an optional example, the first determining unit is further configured to:

[0114] Calculating a threshold value of a range of ink drop numbers according to the number of ink drop rows and the number of ink droplets per row;

[0115] Comparing the target number of ink drops with the ink drop number range threshold, and determining a target printing row in the ink drop arrangement array according to the comparison result and the number of ink drop rows;

[0116] Determining a target printing column in the target printing row according to the target number of ink drops and the number of ink drops per row;

[0117] The ink droplet printing position corresponding to the inkjet slot is determined according to the target printing row and the target printing column.

[0118] In an optional example, the first determining unit is further configured to:

[0119] Determining the number of print lines according to the comparison result, and determining the print line distribution rule according to the number of ink droplet lines;

[0120] According to the number of printing lines and the printing line distribution rule, a target printing line is determined in the ink drop arrangement array.

[0121] In an optional example, the first determining unit is further configured to:

[0122] Determining a print column distribution rule according to the number of ink drops per row;

[0123] Comparing the target number of ink drops with the number of ink drops per row;

[0124] If the target number of ink drops is not greater than the number of ink drops per row, determining a target print column in the target print row according to the print column distribution rule;

[0125] If the target number of ink drops is greater than the number of ink drops per row, all print rows and partial print rows are determined in the target print row, all columns in all print rows are determined as target print columns, and the target print columns in the partial print rows are determined according to the print column distribution rule.

[0126] In an optional example, the second determining unit is further configured to:

[0127] Acquire the inkjet volume corresponding to each inkjet port in the inkjet head, and calculate the inkjet volume mean and inkjet volume standard deviation corresponding to the inkjet head based on the inkjet volume corresponding to each inkjet port;

[0128] Based on the inkjet volume mean and the inkjet volume standard deviation, a target distribution relationship corresponding to the inkjet head is determined.

[0129] In an optional example, the compensation unit is further configured to:

[0130] Obtaining a target maximum distribution probability in the target distribution relationship and a preset maximum distribution probability in the preset distribution relationship;

[0131] If the target maximum distribution probability is greater than the preset maximum distribution probability, calculating the difference between the target maximum distribution probability and the preset maximum distribution probability, and determining the compensation inkjet volume based on preset mapping information and the difference;

[0132] Compensatory inkjet printing is performed on the ink drop printing position based on the compensatory inkjet volume.

[0133] By adopting the solution of this embodiment, the film thickness is controlled by determining the ink droplet printing position corresponding to the inkjet slot, which has higher accuracy than controlling the film thickness by controlling the spacing. In addition, by determining the compensating inkjet volume when printing at the ink droplet printing position, the accuracy of inkjet thickness control in the inkjet slot is further improved.

[0134] Accordingly, the present application also provides an inkjet printing system, such as Figure 4 As shown, Figure 4 A schematic diagram of the structure of an inkjet printing system provided in an embodiment of the present application. The inkjet printing system 1100 includes a processor 1101 having one or more processing cores, a memory 1102 having one or more computer-readable storage media, and a computer program stored in the memory 1102 and executable on the processor. The processor 1101 is electrically connected to the memory 1102. It will be understood by those skilled in the art that the inkjet printing system structure shown in the figure does not constitute a limitation on the inkjet printing system, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0135] The processor 1101 is the control center of the inkjet printing system 1100, and uses various interfaces and lines to connect various parts of the entire electronic device 1100. By running or loading software programs and / or units stored in the memory 1102, and calling data stored in the memory 1102, the processor 1101 executes various functions of the electronic device 1100 and processes data, thereby monitoring the inkjet printing system 1100 as a whole. The processor 1101 can be a processor CPU, a graphics processor GPU, a network processor (Network Processor, NP), etc., and can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application.

[0136] In the embodiment of the present application, the processor 1101 in the inkjet printing system 1100 will load instructions corresponding to the processes of one or more application programs into the memory 1102 according to the following steps, and the processor 1101 will run the application programs stored in the memory 1102 to implement various functions, such as:

[0137] Determining the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness;

[0138] Acquire the inkjet volume corresponding to each inkjet port in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0139] A compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and compensation inkjet printing is performed on the ink drop printing position based on the compensation inkjet volume.

[0140] In an optional example, it also includes:

[0141] Determining a target number of ink droplets to be printed in the inkjet slot according to a target film thickness of the substrate and size information of an inkjet slot in the substrate;

[0142] Determining the number of ink droplet rows and the number of ink droplets per row in the inkjet slot according to the size information of the inkjet slot, the preset ink droplet spacing, and the preset maximum film thickness;

[0143] According to the number of ink droplet rows and the number of ink droplets per row, the inkjet slot is divided to obtain an ink droplet arrangement array;

[0144] The ink drop printing position corresponding to the inkjet slot is determined in the ink drop arrangement array according to the target ink drop number, the ink drop row number and the ink drop number per row.

[0145] In an optional example, it also includes:

[0146] Calculating a threshold value of a range of ink drop numbers according to the number of ink drop rows and the number of ink droplets per row;

[0147] Comparing the target number of ink drops with the ink drop number range threshold, and determining a target printing row in the ink drop arrangement array according to the comparison result and the number of ink drop rows;

[0148] Determining a target printing column in the target printing row according to the target number of ink drops and the number of ink drops per row;

[0149] The ink droplet printing position corresponding to the inkjet slot is determined according to the target printing row and the target printing column.

[0150] In an optional example, it also includes:

[0151] Determining the number of print lines according to the comparison result, and determining the print line distribution rule according to the number of ink droplet lines;

[0152] According to the number of printing lines and the printing line distribution rule, a target printing line is determined in the ink drop arrangement array.

[0153] In an optional example, it also includes:

[0154] Determining a print column distribution rule according to the number of ink drops per row;

[0155] Comparing the target number of ink drops with the number of ink drops per row;

[0156] If the target number of ink drops is not greater than the number of ink drops per row, determining a target print column in the target print row according to the print column distribution rule;

[0157] If the target number of ink drops is greater than the number of ink drops per row, all print rows and partial print rows are determined in the target print row, all columns in all print rows are determined as target print columns, and the target print columns in the partial print rows are determined according to the print column distribution rule.

[0158] In an optional example, it also includes:

[0159] Acquire the inkjet volume corresponding to each inkjet port in the inkjet head, and calculate the inkjet volume mean and inkjet volume standard deviation corresponding to the inkjet head based on the inkjet volume corresponding to each inkjet port;

[0160] Based on the inkjet volume mean and the inkjet volume standard deviation, a target distribution relationship corresponding to the inkjet head is determined.

[0161] In an optional example, it also includes:

[0162] Obtaining a target maximum distribution probability in the target distribution relationship and a preset maximum distribution probability in the preset distribution relationship;

[0163] If the target maximum distribution probability is greater than the preset maximum distribution probability, calculating the difference between the target maximum distribution probability and the preset maximum distribution probability, and determining the compensation inkjet volume based on preset mapping information and the difference;

[0164] Compensatory inkjet printing is performed on the ink drop printing position based on the compensatory inkjet volume.

[0165] Therefore, the film thickness is controlled by determining the ink droplet printing position corresponding to the inkjet slot, which has higher accuracy than controlling the film thickness by controlling the spacing, and the accuracy of inkjet thickness control in the inkjet slot is further improved by determining the compensating inkjet volume when printing at the ink droplet printing position.

[0166] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0167] Optional, such as Figure 4 As shown, the inkjet printing system 1100 further includes: a touch screen 1103, a radio frequency circuit 1104, an audio circuit 1105, an input unit 1106, and a power supply 1107. The processor 1101 is electrically connected to the touch screen 1103, the radio frequency circuit 1104, the audio circuit 1105, the input unit 1106, and the power supply 1107, respectively. Those skilled in the art can understand that Figure 4 The inkjet printing system structure shown in the figure does not constitute a limitation on the electronic device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0168] The touch display screen 1103 can be used to display a graphical user interface and receive operation instructions generated by the user acting on the graphical user interface. The touch display screen 1103 may include a display panel and a touch panel. Among them, the display panel can be used to display information input by the user or information provided to the user and various graphical user interfaces of the electronic device, and these graphical user interfaces can be composed of graphics, text, icons, videos and any combination thereof. Optionally, the display panel can be configured in the form of a liquid crystal display (LCD, Liquid Crystal Display), an organic light-emitting diode (OLED, Organic Light-EmittingDiode) and the like. The touch panel can be used to collect the user's touch operation on or near it (such as the user uses any suitable object or attachment such as a finger, a stylus, etc. on the touch panel or near the touch panel), and generate corresponding operation instructions, and the operation instructions execute corresponding programs. Optionally, the touch panel may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the touch point coordinates, and then sends it to the processor 1101, and can receive the command sent by the processor 1101 and execute it. The touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it is transmitted to the processor 1101 to determine the type of touch event, and then the processor 1101 provides a corresponding visual output on the display panel according to the type of touch event. In an embodiment of the present application, the touch panel and the display panel can be integrated into the touch display screen 1103 to realize the input and output functions. However, in some embodiments, the touch panel and the touch panel can be used as two independent components to realize the input and output functions. That is, the touch display screen 1103 can also be used as a part of the input unit 1106 to realize the input function.

[0169] The radio frequency circuit 1104 may be used to send and receive radio frequency signals, so as to establish wireless communication with a network device or other electronic devices through wireless communication, and to send and receive signals between the network device or other electronic devices.

[0170] The audio circuit 1105 can be used to provide an audio interface between the user and the electronic device through a speaker and a microphone. The audio circuit 1105 can transmit the electrical signal converted from the received audio data to the speaker, which is converted into a sound signal for output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 1105 and converted into audio data, and then the audio data is output to the processor 1101 for processing, and then sent to another electronic device through the radio frequency circuit 1104, or the audio data is output to the memory 1102 for further processing. The audio circuit 1105 may also include an earplug jack to provide communication between an external headset and an electronic device.

[0171] The input unit 1106 may be used to receive input numbers, character information or user feature information (such as fingerprint, iris, facial information, etc.), and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0172] The power supply 1107 is used to supply power to various components of the electronic device 1100. Optionally, the power supply 1107 can be logically connected to the processor 1101 through a power management system, so that the power management system can manage charging, discharging, and power consumption. The power supply 1107 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0173] although Figure 4 Not shown, the electronic device 1100 may also include a camera, a sensor, a wireless fidelity module, a Bluetooth module, etc., which will not be described in detail here.

[0174] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0175] A person of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0176] To this end, an embodiment of the present application provides a computer-readable storage medium, in which multiple computer programs are stored, and the computer program can be loaded by a processor to execute any inkjet printing method provided in the embodiment of the present application. The computer program can execute the following steps of the inkjet printing method:

[0177] Determining the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness;

[0178] Acquire the inkjet volume corresponding to each inkjet port in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0179] A compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and compensation inkjet printing is performed on the ink drop printing position based on the compensation inkjet volume.

[0180] In an optional example, it also includes:

[0181] Determining a target number of ink droplets to be printed in the inkjet slot according to a target film thickness of the substrate and size information of an inkjet slot in the substrate;

[0182] Determining the number of ink droplet rows and the number of ink droplets per row in the inkjet slot according to the size information of the inkjet slot, the preset ink droplet spacing, and the preset maximum film thickness;

[0183] According to the number of ink droplet rows and the number of ink droplets per row, the inkjet slot is divided to obtain an ink droplet arrangement array;

[0184] The ink drop printing position corresponding to the inkjet slot is determined in the ink drop arrangement array according to the target ink drop number, the ink drop row number and the ink drop number per row.

[0185] In an optional example, it also includes:

[0186] Calculating a threshold value of a range of ink drop numbers according to the number of ink drop rows and the number of ink droplets per row;

[0187] Comparing the target number of ink drops with the ink drop number range threshold, and determining a target printing row in the ink drop arrangement array according to the comparison result and the number of ink drop rows;

[0188] Determining a target printing column in the target printing row according to the target number of ink drops and the number of ink drops per row;

[0189] The ink droplet printing position corresponding to the inkjet slot is determined according to the target printing row and the target printing column.

[0190] In an optional example, it also includes:

[0191] Determining the number of print lines according to the comparison result, and determining the print line distribution rule according to the number of ink droplet lines;

[0192] According to the number of printing lines and the printing line distribution rule, a target printing line is determined in the ink drop arrangement array.

[0193] In an optional example, it also includes:

[0194] Determining a print column distribution rule according to the number of ink drops per row;

[0195] Comparing the target number of ink drops with the number of ink drops per row;

[0196] If the target number of ink drops is not greater than the number of ink drops per row, determining a target print column in the target print row according to the print column distribution rule;

[0197] If the target number of ink drops is greater than the number of ink drops per row, all print rows and partial print rows are determined in the target print row, all columns in all print rows are determined as target print columns, and the target print columns in the partial print rows are determined according to the print column distribution rule.

[0198] In an optional example, it also includes:

[0199] Acquire the inkjet volume corresponding to each inkjet port in the inkjet head, and calculate the inkjet volume mean and inkjet volume standard deviation corresponding to the inkjet head based on the inkjet volume corresponding to each inkjet port;

[0200] Based on the inkjet volume mean and the inkjet volume standard deviation, a target distribution relationship corresponding to the inkjet head is determined.

[0201] In an optional example, it also includes:

[0202] Obtaining a target maximum distribution probability in the target distribution relationship and a preset maximum distribution probability in the preset distribution relationship;

[0203] If the target maximum distribution probability is greater than the preset maximum distribution probability, calculating the difference between the target maximum distribution probability and the preset maximum distribution probability, and determining the compensation inkjet volume based on preset mapping information and the difference;

[0204] Compensatory inkjet printing is performed on the ink drop printing position based on the compensatory inkjet volume.

[0205] Therefore, the film thickness is controlled by determining the ink droplet printing position corresponding to the inkjet slot, which has higher accuracy than controlling the film thickness by controlling the spacing, and the accuracy of inkjet thickness control in the inkjet slot is further improved by determining the compensating inkjet volume when printing at the ink droplet printing position.

[0206] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0207] The computer-readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0208] Since the computer program stored in the computer-readable storage medium can execute any inkjet printing method provided in the embodiments of the present application, the beneficial effects that can be achieved by any inkjet printing method provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0209] According to one aspect of the present application, a computer program product or a computer program is also provided, the computer program product or the computer program including computer instructions, the computer instructions being stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device executes the methods provided in various optional implementations of the above embodiments.

[0210] In the above-mentioned inkjet printing device, computer-readable storage medium, inkjet printing system, and computer program product embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process and beneficial effects of the above-mentioned inkjet printing device, computer-readable storage medium, computer program product, inkjet printing system and its corresponding units can refer to the description of the inkjet printing method in the above embodiment, and will not be repeated here.

[0211] The above is a detailed introduction to an inkjet printing method, device, system, computer-readable storage medium and computer program product provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An inkjet printing method, characterized in that: The inkjet printing method comprises: Determining the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness; Acquire the inkjet volume corresponding to each inkjet port in the inkjet head, and determine the target distribution relationship based on the inkjet volume; A compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and compensation inkjet printing is performed on the ink drop printing position based on the compensation inkjet volume.

2. The inkjet printing method according to claim 1, characterized in that: The step of determining the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness comprises: Determining a target number of ink droplets to be printed in the inkjet slot according to a target film thickness of the substrate and size information of an inkjet slot in the substrate; Determining the number of ink droplet rows and the number of ink droplets per row in the inkjet slot according to the size information of the inkjet slot, the preset ink droplet spacing, and the preset maximum film thickness; According to the number of ink droplet rows and the number of ink droplets per row, the inkjet slot is divided to obtain an ink droplet arrangement array; The ink drop printing position corresponding to the inkjet slot is determined in the ink drop arrangement array according to the target ink drop number, the ink drop row number and the ink drop number per row.

3. The inkjet printing method according to claim 2, characterized in that: The step of determining the ink droplet printing position corresponding to the inkjet slot in the ink droplet arrangement array according to the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row includes: Calculating a threshold value of a range of ink drop numbers according to the number of ink drop rows and the number of ink droplets per row; Comparing the target number of ink drops with the ink drop number range threshold, and determining a target printing row in the ink drop arrangement array according to the comparison result and the number of ink drop rows; Determining a target printing column in the target printing row according to the target number of ink drops and the number of ink drops per row; The ink droplet printing position corresponding to the inkjet slot is determined according to the target printing row and the target printing column.

4. The inkjet printing method according to claim 3, characterized in that: Determining a target printing row in the ink drop arrangement array according to the comparison result and the number of ink drop rows includes: Determining the number of print lines according to the comparison result, and determining the print line distribution rule according to the number of ink droplet lines; According to the number of printing lines and the printing line distribution rule, a target printing line is determined in the ink drop arrangement array.

5. The inkjet printing method according to claim 3, characterized in that: The step of determining a target printing column in the target printing row according to the target number of ink drops and the number of ink drops per row comprises: Determining a print column distribution rule according to the number of ink drops per row; Comparing the target number of ink drops with the number of ink drops per row; If the target number of ink drops is not greater than the number of ink drops per row, determining a target print column in the target print row according to the print column distribution rule; If the target number of ink drops is greater than the number of ink drops per row, all print rows and partial print rows are determined in the target print row, all columns in all print rows are determined as target print columns, and the target print columns in the partial print rows are determined according to the print column distribution rule.

6. The inkjet printing method according to claim 1, characterized in that: The obtaining of the inkjet volume corresponding to each inkjet port in the inkjet head and determining the target distribution relationship based on the inkjet volume includes: Acquire the inkjet volume corresponding to each inkjet port in the inkjet head, and calculate the inkjet volume mean and inkjet volume standard deviation corresponding to the inkjet head based on each inkjet volume; Based on the inkjet volume mean and the inkjet volume standard deviation, a target distribution relationship corresponding to the inkjet head is determined.

7. The inkjet printing method according to claim 1, characterized in that: The method of determining a compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and performing compensation inkjet printing on the ink drop printing position based on the compensation inkjet volume, comprises: Obtaining a target maximum distribution probability in the target distribution relationship and a preset maximum distribution probability in the preset distribution relationship; If the target maximum distribution probability is greater than the preset maximum distribution probability, calculating the difference between the target maximum distribution probability and the preset maximum distribution probability, and determining the compensated inkjet volume based on preset mapping information and the difference; Compensatory inkjet printing is performed on the ink drop printing position based on the compensated inkjet volume.

8. An inkjet printing device, characterized in that: The device comprises: an inkjet head, a driving module and a measuring module; The calculation module includes a first determination unit, a second determination unit and a compensation unit; The first determining unit is used to determine the ink droplet printing position corresponding to the inkjet slot according to the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing and the preset maximum film thickness; The driving module is used to drive the inkjet head to move to the ink drop printing position; The second determining unit is used to obtain the inkjet volume corresponding to each inkjet port in the inkjet head, and determine the target distribution relationship based on the inkjet volume; The compensation unit is used to determine the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship; The inkjet head is used to perform inkjet printing at each of the ink drop printing positions, and perform compensatory inkjet printing on the ink drop printing positions based on the compensatory inkjet volume.

9. An inkjet printing system, characterized in that: It comprises a processor and a memory, wherein the memory stores a plurality of instructions; the processor loads instructions from the memory to execute the steps of the inkjet printing method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor to execute the steps of the inkjet printing method according to any one of claims 1 to 7.

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