A method and device for improving inkjet printing OCR splicing marks

Abstract

The present invention relates to a method and device for improving inkjet printing OCR splicing marks, and relates to the field of inkjet printing technology. The method comprises: determining the printing area of ​​the graphics to be printed based on the obtained request information; setting the edge width of the printing area and making a frame pattern, printing a frame glue based on the frame pattern and curing it with a UV lamp to form a solid glue of the frame pattern; printing the graphics to be printed in the solid glue using a multi-nozzle splicing method, and curing the glue printed by the multi-nozzle after the glue is fused and leveled to obtain a glue surface without splicing marks. The present invention not only has a good printing effect and perfectly solves the splicing mark problem, but also provides a feasible solution for printing large-scale products using inkjet printing technology. It also has the advantage of low cost, does not require changing the hardware configuration of the existing inkjet printer, can deal with the splicing mark problem formed by nozzle splicing, and can also solve the problem of uneven glue thickness encountered when printing ultra-thick glue.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet printing, and in particular to a method and device for improving inkjet printing OCR splicing marks. Background Art

[0002] In recent years, with the development of science and technology, inkjet printing technology has been applied more and more widely. Especially in the field of high-precision electronic display, inkjet printing technology has developed very rapidly.

[0003] In the touch display industry, a high-strength cover glass is typically attached to the outside of the display screen to protect it. To enhance the reliability of the touch module and improve the display quality after bonding, optical glue is often used to fill the gap between the cover glass and the display screen. Traditionally, this filler is solid OCA optical adhesive. During bonding, the OCA is first cut into a fixed shape offline and then attached to the cover glass. Finally, the cover glass and display are bonded together, and after de-bubbling and UV curing processes, a perfect touch module is formed.

[0004] Due to the high precision and customizable graphics of inkjet printing, liquid optical glue (OCR) can be directly printed on the cover according to the set graphics and then laminated, which can replace the OCA lamination process. Compared with the complex OCA production process, it can reduce costs and improve efficiency. However, inkjet printing water glue is not 100% perfect. When printing larger products, inkjet printing will encounter the following problems:

[0005] Because the width of a single nozzle is fixed, printing larger products requires the use of multiple nozzles in a spliced ​​configuration. To prevent glue from flowing after printing, a UV lamp is typically used to initially cure the glue during printing. However, when printing with multiple nozzles in a spliced ​​configuration, the glue is not fully integrated and the surface smoothness of the glue is insufficient. After curing, noticeable splicing marks can be seen at the joint between the two nozzles, affecting the display quality. Summary of the Invention

[0006] In view of this, in order to solve the above-mentioned splicing mark problem, the purpose of the present invention is to provide a method and device for improving inkjet printing OCR splicing marks, so as to solve the splicing mark problem at the splicing position of the nozzle of the existing inkjet printer.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] In a first aspect, an embodiment of the present invention provides a method for improving inkjet printing OCR splicing marks, comprising the following steps:

[0009] Acquiring request information of a graphic to be printed, and determining a printing area of ​​the graphic to be printed based on the request information;

[0010] Setting the edge width of the printing area and forming a frame pattern, printing frame-shaped glue based on the frame pattern and curing it with a UV lamp to form a solid glue of the frame pattern;

[0011] The graphics to be printed are printed in the solid glue by using a multi-nozzle splicing method, and the glue printed by the multi-nozzle is solidified after being fused and leveled to obtain a glue surface without splicing marks.

[0012] As a further solution of the present invention, the request information includes: pattern information of the graphic to be printed and graphic area information of the graphic to be printed, wherein the graphic area information includes the length and width of the distribution of the pattern information.

[0013] As a further solution of the present invention, determining a printing area of ​​the graphics to be printed based on the request information includes:

[0014] Reading the pattern information of the graphic to be printed and the graphic area information of the graphic to be printed in the request information, and determining the length and width of the pattern information in the graphic area information;

[0015] The pattern information and the length and width of the pattern information are input into the inkjet printer controller to determine the printing area of ​​the graphic to be printed under the inkjet printer nozzle, wherein the length and width of the printing area of ​​the graphic to be printed are consistent with the graphic area information.

[0016] As a further solution of the present invention, the edge width of the printing area is set and a frame-shaped pattern is produced. The edge width of the printing area is set to 0.5 mm. Frame-shaped glue is printed based on the frame pattern and the glue is cured using a UV lamp to form a frame-shaped solid glue.

[0017] As a further solution of the present invention, the printing area of ​​the determined graphic to be printed is composed of a frame pattern and a filling area located inside the frame pattern. The filling area is a printing pattern area made by reducing the edge of the printing area of ​​the graphic to be printed by 0.5 mm.

[0018] Another aspect of the present invention provides a device for improving inkjet printing OCR splicing marks, comprising:

[0019] A printing area determination module, used for determining the printing area of ​​the graphics to be printed according to the acquired request information;

[0020] A frame pattern setting module, used to set the edge width of the printing area and form a frame pattern;

[0021] A frame pattern printing module, configured to print frame-shaped glue based on the frame pattern and use a UV lamp to cure the glue to form a solid frame pattern;

[0022] The pattern printing module is used to print the pattern to be printed in the solid glue using a multi-nozzle splicing method, and solidify the glue printed by the multi-nozzle after it is fused and leveled to obtain a glue surface without splicing marks.

[0023] As a further solution of the present invention, the device for improving inkjet printing OCR splicing marks also includes an inkjet printing head, which is located above the printing area of ​​the graphic to be printed. The frame pattern is printed by an inkjet printing head to form a frame pattern, which is cured to form a solid glue; multiple inkjet printing heads are used to splice and print in the solid glue to form a pattern, and the glue is fused and leveled and then cured to obtain a glue surface.

[0024] In another aspect of the present invention, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, any one of the above methods for improving inkjet printing OCR splicing marks according to the present invention is executed.

[0025] In another aspect of the present invention, a computer-readable storage medium is provided, storing computer program instructions, which, when executed, implement any of the above methods for improving inkjet printing OCR splicing marks according to the present invention.

[0026] The present invention has at least the following beneficial technical effects:

[0027] The present invention proposes a method and device for improving inkjet printing OCR splicing marks. By dividing the printing area into a frame pattern and a fill area, a frame-shaped glue is printed, which is then cured to form a solid glue with a frame pattern. Multiple nozzles are then used to print within the solid glue. After the glue printed by the multiple nozzles has merged and leveled, it is cured to obtain a glue surface without splicing marks. Not only does this method achieve excellent printing results and perfectly solve the splicing mark problem, it provides a feasible solution for printing large-scale products using inkjet printing technology. It also has the advantages of low cost, without changing the existing inkjet printer hardware configuration, and can address the splicing mark problem caused by nozzle splicing. It can also solve the problem of uneven glue thickness encountered when printing ultra-thick glue.

[0028] These and other aspects of the present application will be more clearly understood in the following description of the embodiments. It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. In the drawings:

[0030] Figure 1 A flow chart of a method for improving inkjet printing OCR splicing marks according to an embodiment of the present invention is shown;

[0031] Figure 2 A schematic diagram of printed graphics in a method for improving inkjet printing OCR splicing marks according to the present invention is shown;

[0032] Figure 3 A schematic block diagram of an embodiment of a device for improving inkjet printing OCR splicing marks according to the present invention is shown;

[0033] Figure 4 A schematic diagram showing the hardware structure of an embodiment of a computer device for implementing a method for improving inkjet printing OCR splicing traces according to the present invention is shown;

[0034] Figure 5 A schematic diagram of an embodiment of a computer-readable storage medium for implementing a method for improving inkjet printing OCR stitching traces according to the present invention is shown.

[0035] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0037] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0038] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are intended to distinguish two non-identical entities or non-identical parameters with the same name. Therefore, "first" and "second" are merely for convenience of expression and should not be understood as limitations on the embodiments of the present invention. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, other steps or units inherent to a process, method, apparatus, product, or device that includes a series of steps or units.

[0039] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, combined, or partially merged, so the actual execution order may vary depending on the actual situation.

[0041] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0042] Because the width of a single nozzle is fixed, printing larger products requires the use of multiple nozzles in a spliced ​​configuration. To prevent glue from flowing after printing, a UV lamp is typically used to initially cure the glue during printing. However, when printing with multiple nozzles in a spliced ​​configuration, the glue is not fully integrated and the surface smoothness of the glue is insufficient. After curing, noticeable splicing marks can be seen at the joint between the two nozzles, affecting the display quality.

[0043] In this case, in order to solve the problem of splicing marks, the present invention aims to provide a method and device for improving inkjet printing OCR splicing marks, so as to solve the problem of splicing marks at the splicing position of the nozzles of existing inkjet printers.

[0044] See also Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a method for improving inkjet printing OCR splicing marks, wherein the method includes the following steps S10-S30;

[0045] Step S10: obtaining request information of the graphics to be printed, and determining a printing area of ​​the graphics to be printed based on the request information;

[0046] Step S20: setting the edge width of the printing area and forming a frame pattern, printing frame glue based on the frame pattern and using a UV lamp to cure the frame pattern to form a solid glue;

[0047] Step S30: Print the graphics to be printed in the solid glue by using a multi-nozzle splicing method, and solidify the glue printed by the multi-nozzle after the glue is fused and leveled to obtain a glue surface without splicing marks.

[0048] When obtaining request information of a graphic to be printed, the request information includes pattern information of the graphic to be printed and graphic area information of the graphic to be printed, wherein the graphic area information includes the length and width of the distribution of the pattern information.

[0049] In this embodiment, determining the printing area of ​​the graphics to be printed based on the request information includes:

[0050] Reading the pattern information of the graphic to be printed and the graphic area information of the graphic to be printed in the request information, and determining the length and width of the pattern information in the graphic area information;

[0051] The pattern information and the length and width of the pattern information are input into the inkjet printer controller to determine the printing area of ​​the graphic to be printed under the inkjet printer nozzle, wherein the length and width of the printing area of ​​the graphic to be printed are consistent with the graphic area information.

[0052] Exemplarily, in this embodiment, the edge width of the printing area is set and a frame-shaped pattern is produced. The edge width of the printing area is set to 0.5 mm. Frame-shaped glue is printed based on the frame pattern and a UV lamp is used to cure the glue to form a frame-shaped solid glue.

[0053] Similarly, the printing area of ​​the graphics to be printed is determined to be composed of a frame pattern and a filling area located inside the frame pattern. The filling area is a printing pattern area obtained by reducing the edge of the printing area of ​​the graphics to be printed by 0.5 mm.

[0054] The edge width of the printing area and the width of the filling area reduced by the edge of the printing area of ​​the graphic to be printed can be adjusted according to the actual size of the graphic to be printed.

[0055] The method for improving inkjet printing OCR splicing marks of the present invention is as follows: when printing, according to the printing requirements, the graphic area to be printed is made into a frame-shaped pattern with an edge width of about 0.5mm, the graphic is used to print out frame-shaped glue, and the glue is cured by using a UV lamp while printing, finally forming a frame-shaped solid glue; according to the printing requirements, the graphic area to be printed is made into a pattern, and the edge is reduced by 0.5mm (the width of the frame pattern). The graphic is used for printing, which can just fill the frame printed in the previous step. Since the frame-shaped glue printed in the previous step has been preliminarily cured, the print in this step can be surrounded like a dam to ensure that the glue printed in this step will not flow and overflow; after standing for a period of time, the glue printed by different nozzles is fused and leveled, and then cured, a perfect glue surface without splicing marks can be obtained.

[0056] It should be noted that the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention and are not intended to be limiting. It is readily understood that the processes illustrated in the above figures do not indicate or limit the temporal order of these processes. Furthermore, it is readily understood that these processes may be executed synchronously or asynchronously, for example, in multiple modules.

[0057] The second aspect of the present invention further provides a device for improving inkjet printing OCR splicing marks. Figure 3 FIG. 1 is a schematic block diagram of an embodiment of a device for improving inkjet printing OCR splicing traces according to the present invention. Figure 3 As shown, the device includes:

[0058] The printing area determination module 100 is used to determine the printing area of ​​the graphics to be printed according to the acquired request information;

[0059] A frame pattern setting module 200 is used to set the edge width of the printing area and form a frame pattern;

[0060] A frame pattern printing module 300 is configured to print frame-shaped glue based on the frame pattern and use a UV lamp to cure the glue to form a solid state of the frame pattern;

[0061] The pattern printing module 400 is used to print the pattern to be printed in the solid glue using a multi-nozzle splicing method, and solidify the glue printed by the multi-nozzle after it is fused and leveled to obtain a glue surface without splicing marks.

[0062] Among them, the device for improving the inkjet printing OCR splicing marks also includes an inkjet printing head, which is located above the printing area of ​​the graphic to be printed. The frame pattern is printed by an inkjet printing head to form a frame pattern, which is solidified to form a solid glue; multiple inkjet printing heads are used to splice and print in the solid glue to form a pattern, and the glue is fused and leveled and then solidified to obtain a glue surface.

[0063] The present invention proposes a device for improving inkjet printing OCR splicing marks. By dividing the printing area into a frame pattern and a fill area, a frame-shaped glue is printed, which is then cured to form a solid glue with a frame pattern. Multiple nozzles are then used to print within the solid glue. After the glue printed by the multiple nozzles has merged and leveled, it is cured to obtain a glue surface without splicing marks. Not only does this device achieve excellent printing results and perfectly solve the splicing mark problem, it provides a feasible solution for printing large-scale products using inkjet printing technology. It also has the advantages of low cost, without changing the existing inkjet printer hardware configuration, and can address the splicing mark problem caused by nozzle splicing. It can also solve the problem of uneven glue thickness encountered when printing ultra-thick glue.

[0064] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to an embodiment of the present invention, the features and functions of two or more modules or units described above can be concretized in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided into multiple modules or units to be concretized.

[0065] According to a third aspect of an embodiment of the present invention, a computer device 1000 is provided, comprising a memory 1001 and a processor 1002 , wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the method of any one of the above embodiments is implemented.

[0066] like Figure 4 FIG. 1 is a schematic diagram of the hardware structure of a computer device for implementing the method for improving inkjet printing OCR splicing traces provided by the present invention. Figure 4 Taking the computer device 1000 shown as an example, the computer device includes a processor 1002 and a memory 1001, and may also include: an input device and an output device. The processor 1002, the memory 1001, the input device and the output device may be connected via a bus or other means. Figure 4 The bus connection is used as an example. The input device can receive input digital or character information and generate signal input related to improving inkjet printing OCR splicing marks. The output device can include a display device such as a display screen.

[0067] The memory 1001 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs, and modules, such as the program instructions / modules corresponding to the method for improving inkjet printing OCR splicing marks in the embodiment of the present application. The memory 1001 may include a program storage area and a data storage area, wherein the program storage area can store operating devices and applications required for at least one function; the data storage area can store data created by using the method for improving inkjet printing OCR splicing marks, etc. In addition, the memory 1001 may include a high-speed random access memory and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 1001 may optionally include a memory remotely located relative to the processor 1002, and these remote memories can be connected to the local module via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0068] In some embodiments, the processor 1002 may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chip. The processor 1002 is generally used to control the overall operation of the computer device 1000. In this embodiment, the processor 1002 is used to run the program code stored in the memory 1001 or process data. The processors 1002 of the multiple computer devices 1000 of the computer device of this embodiment execute various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 1001, that is, the method for improving the inkjet printing OCR splicing marks of the above-mentioned method embodiment, including the following steps:

[0069] Acquiring request information of a graphic to be printed, and determining a printing area of ​​the graphic to be printed based on the request information;

[0070] Setting the edge width of the printing area and forming a frame pattern, printing frame-shaped glue based on the frame pattern and curing it with a UV lamp to form a solid glue of the frame pattern;

[0071] The graphics to be printed are printed in the solid glue by using a multi-nozzle splicing method, and the glue printed by the multi-nozzle is solidified after being fused and leveled to obtain a glue surface without splicing marks.

[0072] Through the description of the above embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, or of course, by hardware. Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-compatible storage medium. When the program is executed, it can include the processes of the above-mentioned embodiments, that is, the method for improving inkjet printing OCR splicing marks in the above-mentioned method embodiments.

[0073] A fourth aspect of the embodiments of the present invention further provides a computer-readable storage medium. Figure 5 Schematic diagram of a computer-readable storage medium for improving inkjet printing OCR splicing traces according to an embodiment of the present invention. Figure 5 As shown, a computer-readable storage medium 2000 stores computer program instructions 2001, which can be executed by a processor. When the computer program instructions 2001 are executed, the method of any of the above embodiments, that is, the method of improving inkjet printing OCR splicing marks of the above method embodiment, includes the following steps:

[0074] Acquiring request information of a graphic to be printed, and determining a printing area of ​​the graphic to be printed based on the request information;

[0075] Setting the edge width of the printing area and forming a frame pattern, printing frame-shaped glue based on the frame pattern and curing it with a UV lamp to form a solid glue of the frame pattern;

[0076] The graphics to be printed are printed in the solid glue by using a multi-nozzle splicing method, and the glue printed by the multi-nozzle is solidified after being fused and leveled to obtain a glue surface without splicing marks.

[0077] It will also be understood by those skilled in the art that the various exemplary logic blocks, modules, circuits and algorithm steps described in conjunction with the disclosure herein can be implemented as electronic hardware, computer software or a combination of the two. In order to clearly illustrate this interchangeability of hardware and software, a general description has been given of the functions of various schematic components, blocks, modules, circuits and steps. Whether this function is implemented as software or hardware depends on the specific application and the design constraints imposed on the entire device. Those skilled in the art can implement the function in various ways for each specific application, but this implementation decision should not be interpreted as causing a departure from the scope disclosed in the embodiments of the present invention.

[0078] Finally, it should be noted that the computer-readable storage medium (e.g., memory) herein may be a volatile memory or a non-volatile memory, or may include both a volatile memory and a non-volatile memory. By way of example and not limitation, the non-volatile memory may include a read-only memory (ROM), a programmable ROM (PROM), an electrically programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory. The volatile memory may include a random access memory (RAM), which may act as an external cache memory. By way of example and not limitation, RAM may be obtained in a variety of forms, such as synchronous RAM (DRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct Rambus RAM (DRRAM). The storage devices of the disclosed aspects are intended to include, but are not limited to, these and other suitable types of memory.

[0079] The various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure herein may be implemented or executed using a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. A general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP, and / or any other such configuration.

[0080] The above are exemplary embodiments disclosed in the present invention, but it should be noted that various changes and modifications may be made without departing from the scope of the embodiments disclosed in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless expressly limited to the singular.

[0081] It should be understood that, as used herein, the singular form "a" or "an" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the items listed in association. The serial numbers of the embodiments disclosed in the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0082] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples. Within the spirit of the embodiments of the present invention, the technical features of the above embodiments or different embodiments may be combined, and there are many other variations of different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the scope of protection of the embodiments of the present invention.

Claims

1. A method for improving inkjet printing OCR splicing marks, characterized in that: The steps include: Acquiring request information of a graphic to be printed, and determining a printing area of ​​the graphic to be printed based on the request information; Setting the edge width of the printing area and forming a frame pattern, printing frame-shaped glue based on the frame pattern and curing it with a UV lamp to form a solid glue of the frame pattern; Printing the graphics to be printed in the solid glue by using a multi-nozzle splicing method, and curing the glue printed by the multi-nozzle after the glue is fused and leveled to obtain a glue surface without splicing marks; The edge width of the printing area is set to form a frame pattern, the edge width of the printing area is set to 0.5 mm, and a frame-shaped glue is printed based on the frame pattern and the glue is cured using a UV lamp to form a frame-shaped solid glue; The determined printing area of ​​the graphic to be printed is composed of a frame pattern and a filling area located inside the frame pattern. The filling area is a printing pattern area obtained by reducing the edge of the printing area of ​​the graphic to be printed by 0.5 mm.

2. The method for improving inkjet printing OCR splicing marks according to claim 1, characterized in that: The request information includes: pattern information of the graphics to be printed and graphic area information of the graphics to be printed, wherein the graphic area information includes the length and width of the distribution of the pattern information.

3. The method for improving inkjet printing OCR splicing marks according to claim 2, characterized in that: Determining a printing area of ​​the graphics to be printed based on the request information includes: Reading the pattern information of the graphic to be printed and the graphic area information of the graphic to be printed in the request information, and determining the length and width of the pattern information in the graphic area information; The pattern information and the length and width of the pattern information are input into the inkjet printer controller to determine the printing area of ​​the graphic to be printed under the inkjet printer nozzle, wherein the length and width of the printing area of ​​the graphic to be printed are consistent with the graphic area information.

4. A device for improving inkjet printing OCR splicing marks, characterized in that: A method for improving inkjet printing OCR splicing marks according to any one of claims 1 to 3, wherein the device for improving inkjet printing OCR splicing marks comprises: A printing area determination module, used for determining the printing area of ​​the graphics to be printed according to the acquired request information; A frame pattern setting module, used to set the edge width of the printing area and form a frame pattern; A frame pattern printing module, configured to print frame-shaped glue based on the frame pattern and use a UV lamp to cure the glue to form a solid frame pattern; The pattern printing module is used to print the pattern to be printed in the solid glue using a multi-nozzle splicing method, and solidify the glue printed by the multi-nozzle after it is fused and leveled to obtain a glue surface without splicing marks.

5. The device for improving inkjet printing OCR splicing marks according to claim 4, characterized in that: It also includes an inkjet printing nozzle, which is located above the printing area of ​​the graphic to be printed. The frame pattern is printed by an inkjet printing nozzle to form a frame pattern, which is cured to form a solid glue; multiple inkjet printing nozzles are used to splice and print in the solid glue to form a pattern, and the glue is fused and leveled and then cured to obtain a glue surface.

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