Film printing method, device, equipment, medium and program product

Abstract

The embodiment of the present invention discloses a method, device, equipment, medium and program product for printing adhesive film. It includes: obtaining a target printing image corresponding to the current working condition, and printing according to the target printing image to determine the intermediate printing result; performing image sampling on the intermediate printing result, and determining the target shape corresponding to each ink droplet in the intermediate printing result according to the image sampling result; determining the electric field control parameters corresponding to each ink droplet according to each target shape and the corresponding relationship of the diffusion adjustment corresponding to the current working condition; performing electrowetting adjustment on each ink droplet according to the corresponding electric field control parameter to obtain the target adhesive film. The electrowetting technology is used to achieve precise shape control for each ink droplet, so that the thickness of the adhesive film generated after adjustment in this way is more uniform, and the printing speed can be increased without sacrificing the printing quality, thereby improving the adaptability to the printing medium during the adhesive film printing process, and improving the adhesive film printing efficiency and printing quality.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet printing, and in particular to a film printing method, device, equipment, medium and program product. Background Art

[0002] Screen lamination technology is a key step in the manufacturing process of display devices, which directly affects the display effect and durability of the product. As an efficient printing method, inkjet printing technology has been widely used in many fields due to its significant advantages such as non-contact, low cost, simple process and no need for masks.

[0003] However, due to the limitations of colloid fluidity and the volatile properties of the printed ink droplet solvent, also known as the Marangoni effect, traditional inkjet printing faces challenges in uniformity control in the field of optical clear resin (OCR), which directly affects the product yield and ultimate display performance.

[0004] As a new type of interface control technology, electrowetting technology can achieve uniform spreading of liquid on the solid surface by changing the surface tension between the liquid and solid contact surface. However, this technology is currently mostly used in the industrial field for fluid control and distribution systems, because the precision requirements for fluid control in the industrial field are somewhat different from those in the field of screen bonding. In addition, the screen bonding process also has the problems of difficult edge climbing control, low efficiency and high cost. If the electrowetting technology in the industrial field is directly applied to the screen bonding process, it is still difficult to meet the quality requirements of product production, and it is also difficult to meet the market demand for high-quality and low-cost products. Summary of the invention

[0005] The present invention provides a method, device, equipment, medium and program product for printing adhesive films. By pre-configuring a printing image corresponding to the adhesive film printing condition and a corresponding relationship for adjusting the ink drop shape diffusion, electrowetting adjustment of ink droplets in the adhesive film printing scenario is achieved, so that the thickness of the adhesive film generated after adjustment in this manner is more uniform, and the printing speed can be increased without sacrificing the printing quality, and the time required for ink drying and fixing can be reduced, thereby improving the adhesive film printing efficiency and printing quality, so that the adhesive film produced based on this method can better meet the market demand for high-quality and low-cost products.

[0006] In a first aspect, an embodiment of the present invention provides a film printing method, comprising:

[0007] Obtaining a target printing image corresponding to the current working condition, and printing according to the target printing image to determine an intermediate printing result;

[0008] Performing image sampling on the intermediate printing result, and determining a target shape corresponding to each ink drop in the intermediate printing result according to the image sampling result;

[0009] Determine the electric field control parameters corresponding to each ink droplet according to each target shape and the diffusion adjustment corresponding to the current working condition;

[0010] The electrowetting of each ink droplet is adjusted according to the corresponding electric field control parameters to obtain the target adhesive film.

[0011] In a second aspect, an embodiment of the present invention further provides a film printing device, comprising:

[0012] An intermediate result determination module is used to obtain a target printing image corresponding to the current working condition, and to print according to the target printing image to determine an intermediate printing result;

[0013] A target shape determination module is used to perform image sampling on the intermediate printing result, and determine the target shape corresponding to each ink drop in the intermediate printing result according to the image sampling result;

[0014] A control parameter determination module, used to determine the electric field control parameters corresponding to each ink droplet according to each target shape and the diffusion adjustment corresponding to the current working condition;

[0015] The ink drop adjustment module is used to adjust the electrowetting of each ink drop according to the corresponding electric field control parameters to obtain a target adhesive film.

[0016] In a third aspect, an embodiment of the present invention further provides a film printing device, comprising:

[0017] at least one processor; and a memory communicatively coupled to the at least one processor;

[0018] The memory stores a computer program executable by at least one processor, and the computer program is executed by at least one processor so that the at least one processor can implement the adhesive film printing method of any embodiment of the present invention.

[0019] In a fourth aspect, an embodiment of the present invention further provides a storage medium comprising computer executable instructions, and the computer executable instructions are used to execute the adhesive film printing method of any embodiment of the present invention when executed by a computer processor.

[0020] In a fifth aspect, an embodiment of the present invention further provides a computer program product, including a computer program, which is used to execute the film printing method of any embodiment of the present invention when executed by a processor.

[0021] The embodiments of the present invention provide a method, device, equipment, medium and program product for printing adhesive film, which obtains a target printing image corresponding to the current working condition, and prints according to the target printing image to determine the intermediate printing result; performs image sampling on the intermediate printing result, and determines the target shape corresponding to each ink droplet in the intermediate printing result according to the image sampling result; determines the electric field control parameters corresponding to each ink droplet according to each target shape and the corresponding relationship of diffusion adjustment corresponding to the current working condition; and performs electrowetting adjustment on each ink droplet according to the corresponding electric field control parameter to obtain the target adhesive film. By adopting the above technical scheme, before executing the adhesive film printing task, different printing images are determined for different working conditions according to the working conditions that may occur during the adhesive film printing, and the corresponding relationship of diffusion adjustment when the ink droplet shape is diffused under the influence of electrowetting under different working conditions, so that when executing the adhesive film printing task, the target printing image containing the ink droplet distribution position can be directly determined according to the current working condition, and inkjet printing can be directly performed according to the target printing image. Furthermore, the shape adjustment required for each ink droplet can be determined in combination with the sampling analysis of the printing results. According to the diffusion adjustment correspondence corresponding to the current working condition, precise shape control of each ink droplet can be achieved through electrowetting technology, so that the thickness of the film generated after adjustment in this way is more uniform, and the printing speed can be increased without sacrificing the printing quality, and the time required for ink drying and fixing can be reduced, thereby improving the printing efficiency and printing quality of the film. Since the printing image and the diffusion adjustment correspondence are configured specifically for different working conditions, the adaptability of the film to the printing medium during printing is improved, so that the film produced based on this method can better meet the market demand for high-quality and low-cost products.

[0022] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A flowchart of a film printing method provided in Embodiment 1 of the present invention;

[0025] Figure 2 An example diagram of electrode wiring provided in the first embodiment of the present invention;

[0026] Figure 3An exemplary diagram of the positional relationship between an ink droplet and an interlaced electrode provided in the first embodiment of the present invention;

[0027] Figure 4 A flowchart of a film printing method provided in Embodiment 2 of the present invention;

[0028] Figure 5 A schematic diagram of a process for determining a target printing image corresponding to a preset working condition according to a target number of ink droplets, an accurate volume of ink droplets and a target film thickness provided in a second embodiment of the present invention;

[0029] Figure 6 A schematic diagram of a flow chart of adjusting the average deviation of ink droplets by using initial electric field parameters and a preset electric field adjustment step size to determine a diffusion adjustment corresponding relationship corresponding to a preset working condition, provided in the second embodiment of the present invention;

[0030] Figure 7 A schematic structural diagram of a film printing device provided in Embodiment 3 of the present invention;

[0031] Figure 8 This is a structural schematic diagram of a film printing device provided in Example 4 of the present invention. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] Embodiment 1

[0035] Figure 1This is a flowchart of a film printing method provided in the first embodiment of the present invention. The embodiment of the present invention can be applied to the case of determining printing parameters of a film laminated between screen layers. The film printing method can be executed by a film printing device, which can be implemented by software and / or hardware, and can be configured in a film printing device. Optionally, the film printing device can be an electronic device, which can be a notebook, a desktop computer, a smart tablet, etc., and the embodiment of the present invention does not limit this.

[0036] like Figure 1 As shown, an embodiment of the present invention provides a film printing method, which specifically includes the following steps:

[0037] S101, acquiring a target printing image corresponding to a current working condition, and printing according to the target printing image to determine an intermediate printing result.

[0038] In this embodiment, the current working condition can be specifically understood as the state information and parameter information corresponding to the current moment when the film printing task is executed, which will affect the film printing effect. Exemplarily, the current working condition may include the temperature and humidity corresponding to the current moment when the film printing task is executed, the ink characteristics (such as viscosity, density, surface tension, suitable temperature, etc.), the nozzle size, the distance from the nozzle to the substrate, the printing voltage (amplitude, bias, waveform, rising edge and falling edge, etc.), and the physical characteristics of the substrate (water drop angle and wettability, etc.), etc., and the embodiment of the present invention does not limit this. The target printing image can be specifically understood as an image that can be used to indicate the distribution of each ink drop in the required printing area when the film printing that meets the production requirements can be completed under the current working condition. The intermediate printing result can be specifically understood as a printing image obtained after inkjet printing based on the target printing image, which includes the distribution of each ink drop in the required printing area.

[0039] Specifically, when it is necessary to perform a film printing task, the current working condition can be determined according to the current environment information and various parameter information related to printing, and then a printing image matching the current working condition is determined from a plurality of pre-determined printing images based on the current working condition as the target printing image. Then, the printer performs inkjet printing based on the target printing image to obtain an intermediate printing result in which ink droplets are distributed according to the target printing image.

[0040] S102: Perform image sampling on the intermediate printing result, and determine a target shape corresponding to each ink drop in the intermediate printing result according to the image sampling result.

[0041] In this embodiment, the target shape can be specifically understood as the shape that each ink droplet needs to present when it extends to connect with adjacent ink droplets while meeting the film production requirements, based on the position distribution of different ink droplets in the intermediate printing results and the thickness and uniformity requirements proposed by the film production.

[0042] Specifically, since the target printing image is only designed based on theoretical derivation of the distribution of ink droplets in the film production area, there will often be deviations after actual printing. Therefore, in the embodiment of the present invention, the image acquisition device can be used to perform image sampling on the intermediate printing result to determine the actual distribution of each ink droplet in the film production area after actual printing, and use it as the image sampling result, and then the relative position of different adjacent ink droplets can be determined based on the image sampling result. In order to make the film production meet the thickness and uniformity requirements at the same time, the maximum coverage range of each ink droplet is limited. At this time, the shape of each ink droplet when the ink droplets can be connected after extension and the thickness uniformity meets the production requirements can be determined based on the relative position of different ink droplets, and the shape corresponding to each ink droplet is determined as the target shape corresponding to the ink droplet.

[0043] S103 , determining electric field control parameters corresponding to each ink droplet according to each target shape and the diffusion adjustment correspondence corresponding to the current working condition.

[0044] In this embodiment, the diffusion adjustment correspondence can be specifically understood as the correspondence between the specific parameters corresponding to the electrowetting technology and the shape change of the ink droplet in response to the parameter change under the current working condition. The electric field control parameter can be specifically understood as the electric field parameter that needs to be adjusted in the electrowetting technology when the ink droplet shape is adjusted to the desired state.

[0045] Specifically, for each ink droplet, its current corresponding shape can be determined according to the image sampling result, and the target shape that the ink droplet will eventually reach can be determined based on the above steps. By distinguishing and comparing the target shape with the current shape of the ink droplet, the distance that the ink droplet diffuses in different directions when the diffusion adjustment is performed can be clarified. Then, based on the predetermined diffusion adjustment correspondence corresponding to the current working condition, the electric field parameters that need to be adjusted in the electrowetting technology for each ink droplet when the ink droplet diffuses the corresponding distance can be determined, and used as the electric field control parameters corresponding to the ink droplet.

[0046] S104 , performing electrowetting adjustment on each ink droplet according to corresponding electric field control parameters to obtain a target adhesive film.

[0047] In this embodiment, the electrowetting adjustment can be specifically understood as an adjustment method in which a voltage is applied between the liquid and the solid surface to change the surface tension of the solid-liquid interface, thereby causing the shape and position of the droplet to change.

[0048] Specifically, in order to achieve electrowetting adjustment during the film printing process, staggered electrodes that can be used for electrowetting adjustment can be set below the position where the film needs to be printed, and then according to the electric field control parameters of each ink droplet, the staggered electrodes located below the ink droplet are adjusted corresponding to the electric field control parameters, so that when the staggered electrodes under the ink droplet are energized according to the adjusted parameters, a corresponding voltage is applied between the ink droplet and the ground, and the shape and position of the ink droplet are changed to achieve electrowetting adjustment for each ink droplet. After adjustment, each ink droplet will be connected to the boundary of the adjacent ink droplet, so as to obtain a film with a uniform and flat surface that meets the thickness requirements, and the obtained film is determined as the target film under the current working conditions.

[0049] Optionally, since the electrowetting adjustment is performed based on the intermediate printing result, for the adjustment of each ink droplet therein, in order to achieve the above adjustment, evenly distributed, parallel and equidistant staggered electrodes are arranged under the intermediate printing result so that each ink droplet can be electrowetted according to the corresponding electric field control parameters.

[0050] For example, Figure 2 An example diagram of electrode wiring provided in the first embodiment of the present invention, such as Figure 2 As shown, the red and blue lines represent the positive electrode and the negative electrode respectively. After wiring in this way, it can be ensured that there is a corresponding staggered electrode under each ink droplet, so that each ink droplet can be affected by the staggered electrode located under it, and the electrowetting adjustment of the corresponding electric field control parameters is achieved. Exemplary, Figure 3 This is an example diagram of the position relationship between an ink droplet and an interlaced electrode provided in the first embodiment of the present invention, such as Figure 3 As shown, an ink droplet includes at least one group of staggered electrodes, and the electrowetting adjustment for the ink droplet can be completed by adjusting the parameters of the staggered electrodes located under the ink droplet.

[0051] The technical solution of this embodiment determines the intermediate printing result by acquiring the target printing image corresponding to the current working condition and printing according to the target printing image; performs image sampling on the intermediate printing result and determines the target shape corresponding to each ink droplet in the intermediate printing result according to the image sampling result; determines the electric field control parameters corresponding to each ink droplet according to each target shape and the corresponding relationship of diffusion adjustment corresponding to the current working condition; performs electrowetting adjustment on each ink droplet according to the corresponding electric field control parameter to obtain the target adhesive film. By adopting the above technical solution, before executing the adhesive film printing task, different printing images are determined for different working conditions according to the working conditions that may occur during the adhesive film printing, as well as the corresponding relationship of diffusion adjustment when the ink droplet shape is diffused under the influence of electrowetting under different working conditions, so that when executing the adhesive film printing task, the target printing image containing the ink droplet distribution position can be directly determined according to the current working condition, and inkjet printing can be directly performed according to the target printing image. Furthermore, the shape adjustment required for each ink droplet can be determined in combination with the sampling analysis of the printing results. According to the diffusion adjustment correspondence corresponding to the current working condition, precise shape control of each ink droplet can be achieved through electrowetting technology, so that the thickness of the film generated after adjustment in this way is more uniform, and the printing speed can be increased without sacrificing the printing quality, and the time required for ink drying and fixing can be reduced, thereby improving the printing efficiency and printing quality of the film. Since the printing image and the diffusion adjustment correspondence are configured specifically for different working conditions, the adaptability of the film to the printing medium during printing is improved, so that the film produced based on this method can better meet the market demand for high-quality and low-cost products.

[0052] Embodiment 2

[0053] Figure 4A flowchart of a film printing method provided in the second embodiment of the present invention is further optimized on the basis of the above-mentioned optional technical solutions. After the ink droplets are preliminarily printed according to the current working conditions to obtain the intermediate printing results and image sampling is performed, the actual distribution state of different ink droplets in the intermediate printing results is clarified according to the image sampling results, and then based on the actual distribution state and the target film thickness of the desired printed film under the current state, the target shape that each ink droplet is ultimately expected to achieve that meets the production requirements is obtained. When the electrowetting of each ink droplet is adjusted according to the target shape, the target film finally obtained can not only meet the uniformity requirements, but also meet the requirements for the film thickness in the film production process, thereby ensuring the printing quality of the film. At the same time, before printing the film under the current working conditions, a plurality of preset working conditions that may occur in the film printing process are pre-set, and for each working condition, the target printing image that the ink droplets should print and distribute in order to enable the film to be accurately and effectively printed is determined, and at the same time, for each working condition, the corresponding relationship between the electric field parameters and the diffusion effect is established to obtain the diffusion adjustment corresponding relationship corresponding to different working conditions. As a result, when the subsequent film printing task is executed, the target printing image and the diffusion adjustment correspondence can be determined directly according to the obtained working conditions, the electric field control parameters of each ink droplet obtained by printing can be determined at one time, and the precise shape control of each ink droplet can be achieved through the electrowetting technology, so that the thickness of the film generated after adjustment in this way is more uniform, and the printing speed can be increased without sacrificing the printing quality, the time required for ink drying and fixing can be reduced, and the printing efficiency and printing quality of the film can be improved. Since the corresponding relationship between the printing image and the diffusion adjustment is configured specifically for different working conditions, the adaptability to the printing medium during the film printing process is improved, so that the film produced based on this method can better meet the market demand for high-quality and low-cost products.

[0054] like Figure 4 As shown, an embodiment of the present invention provides a film printing method, which specifically includes the following steps:

[0055] S201. For each preset working condition in the preset working condition set, determine the precise volume of ink droplets corresponding to the preset working condition.

[0056] In this embodiment, the preset working condition can be specifically understood as the working condition that may be encountered in the actual execution of the film printing task, which is determined by combining the possible environmental conditions, ink characteristics, nozzle conditions, printing voltage, and physical characteristics of the substrate. The preset working condition set can be specifically understood as a set composed of multiple different preset working conditions. The precise volume of ink droplets can be specifically understood as the accurate volume of a single ink droplet obtained by precisely measuring the volume of the ink droplets ejected by the inkjet printer when printing under the corresponding working condition.

[0057] Specifically, for each preset working condition in the preset working condition set, inkjet printing is performed under the preset working condition by an inkjet printer, and during the inkjet process, the ejected ink droplets are observed by an ink droplet observer, and the diameter of the observed ink droplets is obtained by image processing, and then the volume of the ink droplets is calculated and determined based on the diameter.

[0058] For example, the ink droplet observer may be an instrument with image acquisition and processing functions. Assuming that the diameter of the ink droplet observed by the ink droplet observer is d, the precise volume of the ink droplet corresponding to the ink droplet may be expressed as: .

[0059] S202 : Determine the target number of ink droplets according to the precise volume of the ink droplets, the area to be printed and the target film thickness corresponding to the preset working conditions.

[0060] In this embodiment, the area to be printed can be specifically understood as the area corresponding to the preset working condition, under which the adhesive film needs to be printed. The target film thickness can be specifically understood as the thickness of the adhesive film to be printed under the preset working condition. The target number of ink drops can be specifically understood as the number of ink drops required to print the adhesive film of the target film thickness in the area to be printed.

[0061] Specifically, based on the area to be printed and the target film thickness corresponding to the preset working condition, the total volume of ink required to print a film of the target film thickness in the area to be printed can be determined, that is, the product of the area of ​​the area to be printed and the target film thickness can be determined as the total volume of ink, and then, when the precise volume of each ink droplet under the preset working condition is known, the ratio of the total volume of ink to the precise volume of the ink droplet can be considered as the total number of ink droplets required to complete printing under the preset working condition, and the ratio can be determined as the target number of ink droplets corresponding to the preset working condition.

[0062] S203 , determining a target printing image corresponding to a preset working condition according to the target number of ink droplets, the precise volume of ink droplets, and the target film thickness.

[0063] The target printing image is an image in which the ink droplets of the target number are evenly and discretely distributed in the area to be printed.

[0064] Specifically, since the volume of each ink droplet ejected by an inkjet printer is generally the same when performing inkjet printing, in order to make the thickness of the final printed film uniform everywhere, the ink droplets are often required to be evenly sprayed and spread in the area to be printed, so that each ink droplet can achieve uniform coverage of the area to be printed after spreading to a similar size. Therefore, the area that an ink droplet can cover in the area to be printed can be determined based on the precise volume of the ink droplet and the target film thickness, and then the target number of ink droplets is determined based on the coverage area of ​​each ink droplet. The ink droplets sprayed at this position can just cover the area to be printed when the ink droplets are fully spread, and can meet the target film thickness requirements.

[0065] Optional, Figure 5 A schematic diagram of a process for determining a target printing image corresponding to a preset working condition according to a target number of ink droplets, an accurate volume of ink droplets and a target film thickness is provided for the second embodiment of the present invention, such as Figure 5 As shown, the specific steps include:

[0066] S2031. Determine the target distribution radius according to the target film thickness and the precise volume of the ink droplets.

[0067] In this embodiment, the target distribution radius can be specifically understood as the radius of the area occupied by an ink droplet in the to-be-printed area after the ink droplet has spread to a target film thickness.

[0068] Exemplarily, when the target film thickness and the precise volume of the ink droplets are known, the ratio of the precise volume of the ink droplets to the target film thickness can be determined as the area occupied by an ink droplet in the area to be printed after the diffusion of the target film thickness is completed. At this time, it can be assumed that the shape occupied by the ink droplet in the area to be printed is a circle, and the radius of the circle is determined according to the area formula of the circle and the area value, and the radius of the circle is determined as the target distribution radius of each ink droplet. It is understandable that the shape occupied by the ink droplet in the area to be printed can also be assumed to be a square or other regular shape to complete the determination of the target distribution radius, and the embodiment of the present invention is not limited to this.

[0069] S2032, performing uniform discrete distribution processing on the points of the target number of ink droplets according to the target distribution radius, and determining a target printing image corresponding to a preset working condition.

[0070] Specifically, the points with the target number of ink droplets are evenly distributed in the area to be printed according to the target distribution radius, so that the distance between two adjacent points is not less than the distance of the target distribution radius, that is, the points in the area to be printed are in a uniform and discrete distribution state, and the image composed of the points in this distribution state is determined as the target printing image corresponding to the preset working condition.

[0071] For example, the area to be printed can be divided into multiple grids based on the target distribution radius r, and a grid setting point p is randomly selected from them, and k candidate points are randomly generated in the annular area around p. The annular area follows the radius range of [r, 2r]. The candidate points are generated in the following manner: , where random_radius is a random number and θ is the angle of random value. Then the distance of the candidate point relative to the existing point is calculated. If the distance between the two falls within r, the candidate point can be considered invalid, and the confirmed valid candidate point is written into the new grid until the target number of ink droplets of valid candidate points are written in the area to be printed, and the target printing image corresponding to the preset working condition is obtained.

[0072] S204, performing uniform film droplet printing according to the target printing image corresponding to the preset working condition, and performing local sampling on the printing result to determine the local sampling result.

[0073] Specifically, according to the target printing image corresponding to the preset working condition, a piezoelectric nozzle composed of multiple columns of nozzles is used to accurately print the ink under the preset working condition onto the solid material to form uniformly distributed film droplets, and the uniformly distributed film droplets are used as the printing result to complete the uniform film droplet printing. After the printing is completed, the printing result is locally sampled by a high-precision image acquisition device, and the sampled image is determined as the local sampling result.

[0074] It is understandable that the printing method can be adjusted according to different target printing images, including but not limited to adjusting the number of printing dots per inch and using multi-PASS printing technology for printing, etc., and the embodiment of the present invention does not limit this.

[0075] It is understandable that the high-precision image acquisition device may be a high-magnification camera, and the sampling points corresponding to the local sampling of the printing result may be one or more, or parameters may be specified to sample fixed positions, which is not limited in the embodiment of the present invention.

[0076] S205 , determining an average deviation of ink droplets according to the local sampling result, and adjusting the average deviation of ink droplets by using the initial electric field parameter and the preset electric field adjustment step size, and determining a diffusion adjustment correspondence corresponding to the preset working condition.

[0077] In this embodiment, the average deviation of ink droplets can be specifically understood as the average value of the deviation between the actual printed ink droplets and the expected position of the ink droplets. The initial electric field parameter can be specifically understood as the electric field parameter value set for the interlaced electrodes located under each ink droplet when the electrowetting technology is first processed. The preset electric field adjustment step can be specifically understood as a pre-set according to actual conditions, which is used to fine-tune the initial electric field parameters so that the interlaced electrodes to which the corresponding electric field parameters are applied can generate the corresponding adjusted interlaced electric field, so that the ink droplets produce parameter adjustment values ​​of different diffusion states. Exemplarily, the preset electric field adjustment step can be a frequency adjustment step.

[0078] Specifically, according to the ink droplet positions contained in the local sampling results, the average deviation of each ink droplet in the area corresponding to the local sampling results is determined, and then a staggered electric field corresponding to the initial electric field parameters is applied to each ink droplet through the staggered electrodes located under each ink droplet, so that each ink droplet in the to-be-printed area diffuses in response to the staggered electric field. If the diffusion result fails to complete the adjustment of the average deviation of the ink droplets, the initial electric field parameters are adjusted through a preset electric field adjustment step. After each adjustment, it is determined whether the ink droplet diffusion result can complete the adjustment coverage of the average deviation of the ink droplets, and after each adjustment, the correspondence between the adjusted electric field parameters and the ink droplet diffusion conditions can be clearly defined. After completing the adjustment of the average deviation of the ink droplets, the multiple correspondences determined in the adjustment process can be determined as diffusion adjustment correspondences corresponding to the preset working conditions.

[0079] Exemplarily, the average deviation D of ink droplets can be determined as follows:

[0080]

[0081] Where N is the number of ink droplets in the local sampling result, is the position of the i-th ink drop in the local sampling result, is the average position of the ink droplet in the local sampling result.

[0082] Optional, Figure 6 A schematic diagram of a flow chart of adjusting the average deviation of ink droplets by using initial electric field parameters and preset electric field adjustment step length to determine the diffusion adjustment corresponding relationship corresponding to the preset working condition is provided in the second embodiment of the present invention, such as Figure 6 As shown, the specific steps include:

[0083] S2051. Add an electric field corresponding to the initial electric field parameters to the printing result to determine the initial ink droplet diffusion state.

[0084] Specifically, since the wiring of the staggered electrodes can cover the area of ​​the printed film required under various working conditions, it can be assumed that the printed result must be uniformly distributed, parallel and equidistantly staggered electrodes, and a corresponding electric field can be added to each position in the printed result. At this time, the staggered electrodes in the printed result can generate a corresponding electric field according to the preset initial electric field parameters, and the shape and position changes of each ink droplet in the printed result caused by the electric field corresponding to the initial electric field parameters are determined, and the ink droplet shape after the change is completed and reaches a stable state is determined as the initial ink droplet diffusion state.

[0085] S2052, adjusting the initial electric field parameters through a feedback mechanism and a preset electric field adjustment step, and determining the intermediate electric field parameters and the intermediate ink droplet diffusion state corresponding to each adjustment.

[0086] Exemplarily, the initial electric field parameters may include an initial frequency , initial amplitude and initial phase , after generating an electric field based on the above initial electric field parameters and obtaining the initial ink droplet diffusion state, the ink droplets in the initial ink droplet diffusion state are often unable to complete the adjustment of the average ink droplet deviation. At this time, the initial electric field parameters can be adjusted by setting a preset electric field adjustment step, such as by gradually adjusting the frequency f and observing the ink droplet diffusion in the printing result. For example, after the first adjustment, the frequency f in the intermediate electric field parameters is ,in, is the frequency adjustment step in the preset electric field adjustment step. Furthermore, after completing a frequency adjustment, the amplitude and phase in the initial electric field parameters can be adjusted at this frequency through the feedback mechanism observed by the high-power camera to determine different ink droplet diffusion states. At this time, according to the corresponding relationship in the adjustment process, multiple groups of different frequencies, amplitudes and phases can be obtained as intermediate electric field parameters, and the ink droplet diffusion states corresponding to each group of intermediate electric field parameters in the adjustment process can be clearly identified, and each ink droplet diffusion state can be determined as the intermediate ink droplet diffusion state corresponding to the corresponding intermediate electric field parameter.

[0087] S2053. When the adjustment of the average deviation of the ink droplets is completed, a diffusion adjustment correspondence corresponding to the preset working condition is determined according to the initial electric field parameters, the initial ink droplet diffusion state, each intermediate electric field parameter and each intermediate ink droplet diffusion state.

[0088] Specifically, when the average deviation adjustment of each ink droplet in the printing result is completed, multiple groups of intermediate electric field parameters and intermediate ink droplet diffusion states that appear in the entire adjustment process, as well as the initial electric field parameters and initial ink droplet diffusion states during the initial adjustment can be obtained. At this time, the electric field parameters and ink droplet diffusion states corresponding to each group can be associated and stored, and determined as a diffusion adjustment correspondence corresponding to the preset working condition. That is, in the embodiment of the present invention, by recording the diffusion size and morphological changes of the ink droplets at each frequency during the adjustment of the average deviation of the ink droplets, a model corresponding to the diffusion adjustment can be established by recording the electric field parameters and diffusion effects corresponding to each frequency. The model can be embodied in the form of a correspondence table to obtain a diffusion adjustment correspondence corresponding to the preset working condition.

[0089] S206: Acquire a target printing image corresponding to the current working condition, and print according to the target printing image to determine an intermediate printing result.

[0090] S207: Perform image sampling on the intermediate printing result.

[0091] S208: Determine the actual ink droplet distribution state in the intermediate printing result according to the image sampling result.

[0092] Specifically, the image sampling results obtained by performing image sampling on the intermediate printing results can be used to determine, after processing, the distribution of each ink droplet in the to-be-printed area after the inkjet printer performs inkjet printing according to the target printing image, and because the ink droplets will extend after contacting the plane, the image sampling results can be used to determine the actual position of each ink droplet in the intermediate printing result, the actual area occupied, the spacing between different ink droplets, the blank area and other information, and the above information can be comprehensively determined as the actual ink droplet distribution state in the intermediate printing result.

[0093] S209: Determine a target shape corresponding to each ink droplet according to the actual ink droplet distribution state and the target film thickness corresponding to the current working condition.

[0094] Specifically, since the adhesive film produced under the current working conditions needs to reach the target film thickness to meet the production requirements, that is, when the precise volume of the ink droplets corresponding to the current working conditions and the target film thickness are known, the area that each ink droplet can eventually extend outward is limited and determined. At this time, based on the actual ink droplet distribution state, the area occupied by each ink droplet and the area that it can extend outward can be determined. At the same time, based on the information such as the spacing between different ink droplets and the blank area contained in the actual ink droplet distribution state, the shape of each ink droplet when it can connect after extension and can achieve full coverage of the adhesive film printing area can be determined, and this shape is determined as the target shape corresponding to each ink droplet.

[0095] S210 , determining electric field control parameters corresponding to each ink droplet according to each target shape and a diffusion adjustment correspondence corresponding to the current working condition.

[0096] S211 , adjusting the electrowetting of each ink droplet according to the corresponding electric field control parameters to obtain a target adhesive film.

[0097] The technical solution of this embodiment is to perform preliminary printing on ink droplets according to the current working conditions to obtain intermediate printing results and perform image sampling, and then clarify the actual distribution state of different ink droplets in the intermediate printing results according to the image sampling results, and then obtain the target shape that each ink droplet is expected to achieve that meets the production requirements based on the actual distribution state and the target film thickness of the desired printed film under the current state. When the electrowetting of each ink droplet is adjusted according to the target shape, the target film finally obtained can not only meet the uniformity requirements, but also meet the requirements for film thickness in the film production process, thereby ensuring the printing quality of the film. At the same time, before printing the film under the current working conditions, a variety of preset working conditions that may occur in the film printing process are pre-set, and for each working condition, the target printing image that the ink droplets should print and distribute in order to enable the film to be accurately and effectively printed is determined, and at the same time, the corresponding relationship between the electric field parameters and the diffusion effect is established for each working condition, and the corresponding relationship of diffusion adjustment corresponding to different working conditions is obtained. As a result, when the subsequent film printing task is executed, the target printing image and the diffusion adjustment correspondence can be determined directly according to the obtained working conditions, the electric field control parameters of each ink droplet obtained by printing can be determined at one time, and the precise shape control of each ink droplet can be achieved through the electrowetting technology, so that the thickness of the film generated after adjustment in this way is more uniform, and the printing speed can be increased without sacrificing the printing quality, the time required for ink drying and fixing can be reduced, and the printing efficiency and printing quality of the film can be improved. Since the corresponding relationship between the printing image and the diffusion adjustment is configured specifically for different working conditions, the adaptability to the printing medium during the film printing process is improved, so that the film produced based on this method can better meet the market demand for high-quality and low-cost products.

[0098] Embodiment 3

[0099] Figure 7 A schematic diagram of the structure of a film printing device provided in the third embodiment of the present invention is shown in FIG. Figure 7 As shown, the film printing device includes an intermediate result determination module 31 , a target shape determination module 32 , a control parameter determination module 33 and an ink drop adjustment module 34 .

[0100] Among them, the intermediate result determination module 31 is used to obtain the target printing image corresponding to the current working condition, and print according to the target printing image to determine the intermediate printing result; the target shape determination module 32 is used to perform image sampling on the intermediate printing result, and determine the target shape corresponding to each ink droplet in the intermediate printing result according to the image sampling result; the control parameter determination module 33 is used to determine the electric field control parameters corresponding to each ink droplet according to each target shape and the corresponding relationship of the diffusion adjustment corresponding to the current working condition; the ink droplet adjustment module 34 is used to perform electrowetting adjustment on each ink droplet according to the corresponding electric field control parameters to obtain the target adhesive film.

[0101] The technical solution of the embodiment of the present invention determines different printing images for different working conditions according to the working conditions that may occur during the printing of the film, and the corresponding relationship of diffusion adjustment when the ink drop shape is diffused under the influence of electrowetting under different working conditions, so that when the film printing task is executed, the target printing image containing the ink drop distribution position can be directly determined according to the current working condition, and inkjet printing can be directly performed according to the target printing image. Then, the shape adjustment required for each ink drop can be determined in combination with the sampling analysis of the printing results, and the precise shape control of each ink drop can be achieved through the electrowetting technology according to the corresponding relationship of diffusion adjustment corresponding to the current working condition, so that the thickness of the film generated after adjustment in this way is more uniform, and the printing speed can be increased without sacrificing the printing quality, and the time required for ink drying and fixing is reduced, thereby improving the printing efficiency and printing quality of the film. Since the targeted configuration of the printing image and the corresponding relationship of diffusion adjustment is performed for different working conditions, the adaptability to the printing medium in the film printing process is improved, so that the film produced based on this method can better meet the market demand for high-quality and low-cost products.

[0102] Optionally, the target shape determination module 32 includes:

[0103] The distribution state determination unit is used to determine the actual ink drop distribution state in the intermediate printing result according to the image sampling result.

[0104] The target shape determination unit is used to determine the target shape corresponding to each ink droplet according to the actual ink droplet distribution state and the target film thickness corresponding to the current working condition.

[0105] Optionally, the film printing device further includes: a working condition configuration module, specifically used for:

[0106] Before acquiring a target printing image corresponding to the current working condition, for each preset working condition in the preset working condition set, determining a precise volume of ink droplets corresponding to the preset working condition;

[0107] Determine the target number of ink drops based on the precise volume of the ink drops, the area to be printed and the target film thickness corresponding to the preset working conditions;

[0108] Determine a target printing image corresponding to a preset working condition according to a target number of ink droplets, an accurate volume of ink droplets, and a target film thickness; wherein the target printing image is an image in which ink droplets of a target number of ink droplets are evenly and discretely distributed in a to-be-printed area;

[0109] Perform uniform film droplet printing according to the target printing image corresponding to the preset working condition, and perform local sampling on the printing result to determine the local sampling result;

[0110] The average deviation of the ink droplets is determined according to the local sampling results, and the average deviation of the ink droplets is adjusted by the initial electric field parameters and the preset electric field adjustment step size to determine the diffusion adjustment correspondence corresponding to the preset working condition.

[0111] Optionally, determining a target printing image corresponding to a preset working condition according to a target number of ink droplets, an accurate volume of ink droplets, and a target film thickness includes:

[0112] Determine the target distribution radius based on the target film thickness and the precise volume of the ink droplets;

[0113] The points of the target number of ink droplets are processed uniformly and discretely distributed according to the target distribution radius to determine the target printing image corresponding to the preset working condition.

[0114] Optionally, adjusting the average deviation of the ink droplets by using the initial electric field parameters and the preset electric field adjustment step length to determine a diffusion adjustment correspondence corresponding to the preset working condition includes:

[0115] Adding an electric field corresponding to the initial electric field parameters to the printing result to determine the initial ink droplet diffusion state;

[0116] The initial electric field parameters are adjusted through a feedback mechanism and a preset electric field adjustment step length, and the intermediate electric field parameters and the intermediate ink droplet diffusion state corresponding to each adjustment are determined;

[0117] When the adjustment of the average deviation of the ink droplets is completed, the diffusion adjustment correspondence corresponding to the preset working condition is determined according to the initial electric field parameters, the initial ink droplet diffusion state, each intermediate electric field parameter and each intermediate ink droplet diffusion state.

[0118] Optionally, evenly distributed, parallel and equidistant staggered electrodes are provided below the intermediate printing result, so that each ink droplet can be adjusted for electrowetting according to corresponding electric field control parameters.

[0119] The adhesive film printing device provided in the embodiment of the present invention can execute the adhesive film printing method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0120] Embodiment 4

[0121] Figure 8A schematic diagram of the structure of a film printing device provided in Embodiment 4 of the present invention. The film printing device 40 may be intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The film printing device 40 may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0122] like Figure 8 As shown, the film printing device 40 includes at least one processor 41, and a memory connected to the at least one processor 41, such as a read-only memory (ROM) 42, a random access memory (RAM) 43, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 41 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 42 or the computer program loaded from the storage unit 48 to the random access memory (RAM) 43. In the RAM 43, various programs and data required for the operation of the film printing device 40 can also be stored. The processor 41, the ROM 42, and the RAM 43 are connected to each other through a bus 44. An input / output (I / O) interface 45 is also connected to the bus 44.

[0123] A number of components in the film printing device 40 are connected to the I / O interface 45, including: an input unit 46, such as a keyboard, a mouse, etc.; an output unit 47, such as various types of displays, speakers, etc.; a storage unit 48, such as a disk, an optical disk, etc.; and a communication unit 49, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 49 allows the film printing device 40 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0124] The processor 41 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 41 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 41 executes the various methods and processes described above, such as the film printing method.

[0125] In some embodiments, the adhesive film printing method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 48. In some embodiments, part or all of the computer program may be loaded and / or installed on the adhesive film printing device 40 via the ROM 42 and / or the communication unit 49. When the computer program is loaded into the RAM 43 and executed by the processor 41, one or more steps of the adhesive film printing method described above may be performed. Alternatively, in other embodiments, the processor 41 may be configured to execute the adhesive film printing method in any other appropriate manner (e.g., by means of firmware).

[0126] Optionally, an embodiment of the present invention further provides a computer program product, including a computer program, which, when executed by a processor, implements the adhesive film printing method provided by any embodiment of the present invention.

[0127] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0128] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0129] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0130] To provide interaction with a user, the systems and techniques described herein may be implemented on a film printing device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) through which a user can provide input to the film printing device. Other types of devices may also be used to provide interaction with a user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0131] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0132] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0133] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0134] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A film printing method, characterized in that: include: Acquire a target printing image corresponding to the current working condition, and print according to the target printing image to determine an intermediate printing result; Performing image sampling on the intermediate printing result, and determining a target shape corresponding to each ink drop in the intermediate printing result according to the image sampling result; Determining an electric field control parameter corresponding to each ink droplet according to each target shape and a diffusion adjustment correspondence corresponding to the current working condition; Performing electrowetting adjustment on each ink droplet according to corresponding electric field control parameters to obtain a target adhesive film; The electric field control parameter is an electric field parameter that needs to be adjusted in the electrowetting technology so that the ink drop shape is adjusted to the desired state. Before executing the film printing task, different printing images will be determined for different working conditions according to the working conditions that may occur during film printing, as well as the corresponding relationship of diffusion adjustment when the ink drop shape is diffused under the influence of electrowetting under different working conditions.

2. The adhesive film printing method according to claim 1, characterized in that: The step of determining a target shape corresponding to each ink drop in the intermediate printing result according to the image sampling result includes: Determine the actual ink droplet distribution state in the intermediate printing result according to the image sampling result; The target shape corresponding to each ink droplet is determined according to the actual ink droplet distribution state and the target film thickness corresponding to the current working condition.

3. The adhesive film printing method according to claim 1, characterized in that: Before acquiring the target printing image corresponding to the current working condition, the method further includes: For each preset working condition in the preset working condition set, determining a precise volume of ink droplets corresponding to the preset working condition; Determining a target number of ink drops according to the precise volume of the ink drops, and the area to be printed and the target film thickness corresponding to the preset working condition; Determine a target printing image corresponding to the preset working condition according to the target number of ink droplets, the precise volume of ink droplets and the target film thickness; wherein the target printing image is an image in which the ink droplets of the target number of ink droplets are evenly and discretely distributed in the area to be printed; Perform uniform film droplet printing according to the target printing image corresponding to the preset working condition, and perform local sampling on the printing result to determine the local sampling result; The average deviation of ink droplets is determined according to the local sampling result, and the average deviation of ink droplets is adjusted by initial electric field parameters and a preset electric field adjustment step size to determine a diffusion adjustment correspondence corresponding to the preset working condition.

4. The adhesive film printing method according to claim 3, characterized in that: The step of determining a target printing image corresponding to the preset working condition according to the target number of ink droplets, the precise volume of ink droplets and the target film thickness comprises: Determining a target distribution radius according to the target film thickness and the precise volume of the ink droplets; The points of the target number of ink droplets are processed with uniform discrete distribution according to the target distribution radius to determine a target printing image corresponding to the preset working condition.

5. The adhesive film printing method according to claim 3, characterized in that: The step of adjusting the average deviation of the ink droplets by using the initial electric field parameters and the preset electric field adjustment step to determine the diffusion adjustment corresponding relationship corresponding to the preset working condition includes: Adding an electric field corresponding to the initial electric field parameters to the printing result to determine an initial ink droplet diffusion state; The initial electric field parameters are adjusted by a feedback mechanism and a preset electric field adjustment step length, and intermediate electric field parameters and intermediate ink droplet diffusion states corresponding to each adjustment are determined; When the adjustment of the average deviation of the ink droplets is completed, the diffusion adjustment correspondence corresponding to the preset working condition is determined according to the initial electric field parameters, the initial ink droplet diffusion state, each intermediate electric field parameter and each intermediate ink droplet diffusion state.

6. The adhesive film printing method according to any one of claims 1 to 5, characterized in that: Evenly distributed, parallel and equidistant staggered electrodes are arranged below the intermediate printing result, so that each ink droplet can be adjusted for electrowetting according to the corresponding electric field control parameters.

7. A film printing device, characterized in that: include: An intermediate result determination module, used to obtain a target printing image corresponding to the current working condition, and to print according to the target printing image to determine an intermediate printing result; a target shape determination module, configured to perform image sampling on the intermediate printing result, and determine a target shape corresponding to each ink drop in the intermediate printing result according to the image sampling result; A control parameter determination module, used to determine the electric field control parameter corresponding to each ink droplet according to each target shape and the diffusion adjustment correspondence corresponding to the current working condition; An ink drop adjustment module, used for adjusting the electrowetting of each ink drop according to a corresponding electric field control parameter to obtain a target adhesive film; The electric field control parameter is an electric field parameter that needs to be adjusted in the electrowetting technology so that the ink drop shape is adjusted to the desired state. Before executing the film printing task, different printing images will be determined for different working conditions according to the working conditions that may occur during film printing, as well as the corresponding relationship of diffusion adjustment when the ink drop shape is diffused under the influence of electrowetting under different working conditions.

8. A film printing device, characterized in that: include: at least one processor; and a memory communicatively coupled to the at least one processor; The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the adhesive film printing method according to any one of claims 1 to 6.

9. A storage medium containing computer executable instructions, characterized in that: The computer executable instructions are used to execute the adhesive film printing method according to any one of claims 1 to 6 when executed by a computer processor.

10. A computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the adhesive film printing method according to any one of claims 1 to 6 is implemented.

Images