A method for processing seam mura texture and an inkjet printer

Abstract

This application discloses a method for processing seam murrasing. The method includes: dividing a pattern to be printed into at least two printing zones; wherein, one printing zone is a region printed on a substrate by a printhead module in a single pass, and the at least two printing zones include a first printing zone and a second printing zone; performing a printing operation on an edge region at a preset first ratio and a preset second ratio; wherein, the edge region is an adjacent region of the first printing zone and the second printing zone, and the edge region includes a first edge region and a second edge region; the preset first ratio is the proportion of ink droplets printed by the printhead module in the first pass to the total ink droplets to be printed in the first edge region, and the preset second ratio is the proportion of ink droplets printed by the printhead module in the second pass to the total ink droplets to be printed in the second edge region. This application can reduce seam murrasing between two adjacent passes.

Description

Technical Field

[0001] This application relates to the field of inkjet printing technology for displays, specifically to a method for processing seam mura patterns and an inkjet printer. Background Technology

[0002] Currently, in inkjet printing (piezoelectric or electro-hydraulic), when the substrate size to be printed is larger than the printhead module's printing size, the printhead module performs multiple print passes. That is, the printhead module needs to perform multiple passes to print the entire substrate; therefore, a one-pass printing method cannot be used.

[0003] However, because two adjacent passes cannot achieve a perfect fit; or rather, at the seam between two adjacent passes, the ink droplet thickness is uneven, resulting in visible Mura patterns. Figure 1 As shown, the X direction is the travel direction of the nozzle module 101, and the Y direction is the travel direction of the substrate 100. The nozzle module 101 is in... Figure 1 The first print of a, with printhead module 101 in Figure 1 The second print in step b will create seam 102. When the seam between the two prints is narrow, the ink droplet thickness at the seam increases, producing a Mura pattern; when the seam between the two prints is wide, the ink droplet thickness at the seam decreases, producing a Mura pattern. Mura patterns (both raised and recessed) affect print quality and also the display quality of the OLED display panel.

[0004] Therefore, how to reduce the Mura pattern between two adjacent passes has become an urgent problem to be solved. Summary of the Invention

[0005] This application provides a method for processing seam mura patterns and an inkjet printer that can reduce seam mura patterns between two adjacent passes.

[0006] The first aspect of this application discloses a method for processing seam mura patterns. The method includes: dividing a pattern to be printed into at least two printing zones; wherein, one printing zone is a region that a printhead module prints on a substrate in a single pass, and the at least two printing zones include a first printing zone and a second printing zone; performing a printing operation on an edge region at a preset first ratio and a preset second ratio; wherein, the edge region is an adjacent region of the first printing zone and the second printing zone, the edge region includes a first edge region and a second edge region, the preset first ratio is the proportion of ink droplets printed by the printhead module in the first edge region to the ink droplets to be printed, and the preset second ratio is the proportion of ink droplets printed by the printhead module in the second edge region to the ink droplets to be printed.

[0007] In the above scheme, the printed pattern is divided into printing zones. By setting the ink droplet printing ratio on the printing zones, the film thickness at the seam between two passes can be reduced by adjusting the ink droplet printing ratio, thereby reducing the seam Mura pattern.

[0008] In one possible implementation, the first edge region includes a first sub-edge region and a second sub-edge region; performing a printing operation in the edge region at a preset first ratio specifically includes: printing the first sub-edge region at a preset first sub-ratio, and printing the second sub-edge region at a preset second sub-ratio; wherein, the preset first ratio includes the preset first sub-ratio and the preset second sub-ratio, the preset first sub-ratio is greater than the preset second sub-ratio, the preset first sub-ratio is the proportion of ink droplets printed in the first sub-edge region to the total number of ink droplets to be printed in the first edge region, and the preset second sub-ratio is the proportion of ink droplets printed in the second sub-edge region to the total number of ink droplets to be printed in the first edge region.

[0009] In the above scheme, the first edge region is further divided into sub-edge regions, and then different printing ratios are set for different sub-edge regions. By adjusting the printing ratio of the sub-edge regions, the film thickness of the sub-edge regions is adjusted. This achieves the adjustment of the film thickness of the edge regions, making the adjustment of the film thickness of the edge regions more refined and accurate, and further reducing the above-mentioned seam Mura texture.

[0010] In one possible implementation, the second edge region includes a third sub-edge region and a fourth sub-edge region, and the second sub-edge region is adjacent to the third sub-edge region; performing a printing operation in the edge region at a preset second ratio specifically includes: printing the third sub-edge region at a preset third sub-ratio, and printing the fourth sub-edge region at a preset fourth sub-ratio; wherein, the preset second ratio includes the preset third sub-ratio and the preset fourth sub-ratio, the preset fourth sub-ratio is greater than the preset third sub-ratio, the preset third sub-ratio is the proportion of ink droplets printed in the third sub-edge region to the number of ink droplets to be printed in the second edge region, and the preset fourth sub-ratio is the proportion of ink droplets printed in the fourth sub-edge region to the number of ink droplets to be printed in the second edge region.

[0011] In the above scheme, based on the further division of the first edge region into sub-edge regions, the second edge region adjacent to the first edge region is further divided into sub-edge regions, and different printing ratios are set for different sub-edge regions. Furthermore, the sub-edge regions with smaller printing ratios in the first and second edge regions are positioned adjacent to each other, resulting in an overall "concave" layout for each sub-edge region; that is, the sub-edge regions with higher printing ratios are located on the outer side of the edge region, and the sub-edge regions with lower printing ratios are located on the inner side of the edge region, which further reduces seam murras.

[0012] In one possible implementation, after performing the printing operation on the edge region, the method further includes: obtaining the film thickness of the edge region and determining whether the film thickness is within a preset film thickness range; if the film thickness of the edge region is within the preset film thickness range, then confirming that the film printing of the edge region is qualified.

[0013] In the above solution, a preset film thickness range is set for printing scenarios with specific requirements for film thickness. By comparing the film thickness with the preset range, it can be determined whether the current film thickness meets the requirements; thus, the film thickness can be adjusted in this way to further reduce seam mura patterns.

[0014] In one possible implementation, after determining whether the film thickness is within a preset film thickness range, the method further includes: if the film thickness of the edge region is outside the preset film thickness range, then confirming that the film printing in the edge region is unqualified; replacing the preset first ratio and the preset second ratio, and repeating the printing operation on the substrate until the film thickness printed in the edge region is qualified; wherein, replacing the preset first ratio and the preset second ratio specifically includes replacing the preset first ratio with a preset third ratio and replacing the preset second ratio with a preset fourth ratio.

[0015] In the above solution, when the set film thickness range is narrow, the film thickness in the edge area may still be unqualified. In this case, the edge film thickness can be made acceptable by reconfiguring the landing point ratio of the first and second edge areas. At this point, regardless of whether the edge film thickness is acceptable, this application can reduce the seam murmur between two adjacent passes; when the edge film thickness is acceptable, it can further reduce the seam murmur.

[0016] In one possible implementation, when the first edge region and the second edge region overlap, the sum of the preset first ratio and the preset second ratio is 80%-120%.

[0017] The above scheme provides an optimal droplet landing ratio when the first and second edge regions overlap. Generally, the droplet landing ratio of the first or second edge region is in the range of 10%-90%. The optimal ratio can further control the edge film thickness, thereby further reducing the seam mura pattern.

[0018] In one possible implementation, when the first edge region and the second edge region do not overlap, the sum of the preset first ratio and the preset second ratio is 100%-200%.

[0019] The above scheme provides an optimal ink droplet landing point ratio when there is no overlap between the first edge region and the second edge region.

[0020] In one possible implementation, before dividing the pattern to be printed into at least two printing zones, the method further includes: setting an X-pitch and a Y-pitch corresponding to the ink parameters in the printhead module of the inkjet printer; and printing with the X-pitch and Y-pitch corresponding to the ink parameters; wherein the X-pitch is the interval between two adjacent ink droplets in the printing direction of the printhead module; and the Y-pitch is the interval between two adjacent ink droplets in the moving direction of the printhead module.

[0021] The above solution considers ink parameters (ink characteristics), especially ink leveling (ink leveling diameter). Different inks have different viscosities, resulting in different droplet diameters after printing. The X and Y spacing can be set according to the ink parameters to allow adjacent droplets to blend and ensure consistent blending speed around the droplets, thus reducing murky seams. The X and Y spacing settings based on the ink parameters in the printhead module are empirical values ​​obtained from multiple tests. These settings can be manual or by establishing a correspondence between commonly used inks and their corresponding X and Y spacings, and then automatically selecting the appropriate X and Y spacing based on the current ink parameters.

[0022] In one possible implementation, before obtaining the film thickness of the edge region, the method further includes: configuring the first edge region as a first edge pattern and configuring the second edge region as a second edge pattern.

[0023] In the above scheme, after setting the ink droplet landing point in the edge area, the printing pattern in the edge area is configured; the configuration of the printing pattern can further "blur" the seam between the two prints, that is, the seam between two adjacent passes is no longer a straight line, thereby further reducing the seam mura pattern.

[0024] In one possible implementation, the edge patterns of the first edge pattern and the second edge pattern include curved patterns and straight patterns.

[0025] The above scheme provides two preferred edge patterns. These two preferred edge patterns can further reduce seam murmurs compared to other edge patterns.

[0026] In one possible implementation, the at least two printing partitions further include other printing partitions that form a plurality of edge regions; wherein any two edge regions may use the same or different patterns.

[0027] In the above scheme, the patterns used for any two edge areas can be the same or different, and can be selected during the actual inkjet printing process; there is no restriction on this.

[0028] In one possible implementation, the pattern to be printed is divided into at least two printing zones, specifically including: obtaining the size of the substrate to be printed and the single-print size of the printhead module; and dividing the pattern to be printed into at least two printing zones according to the substrate size and the single-print size.

[0029] The above scheme provides a method for dividing the printed pattern into printing zones.

[0030] In one possible implementation, before obtaining the film thickness of the edge region, the method further includes: configuring the first edge region as a third edge pattern and configuring the second edge region as a fourth edge pattern; dividing both the third edge pattern and the fourth edge pattern into several rows, wherein the droplet landing rate of any row is a random number; wherein the droplet landing rate is the proportion of the number of droplets landing in any row to the total number of landings, the total number of landings includes the number of droplets landing and the number of non-landing droplets in any row, and the sum of the droplet landing rates of the third edge pattern and the fourth edge pattern located in the same row is 1.

[0031] A second aspect of this application discloses an inkjet printer, which includes a processor, a memory, a user interface, and a network interface. The memory is used to store instructions, and both the user interface and the network interface are used to communicate with other devices. The processor is used to execute the instructions stored in the memory to cause the inkjet printer to perform the following operations:

[0032] The pattern to be printed is divided into at least two printing zones; wherein, one printing zone is the area that the printhead module prints on the substrate in a single operation, and the at least two printing zones include a first printing zone and a second printing zone;

[0033] A printing operation is performed on an edge region using a preset first ratio and a preset second ratio; wherein the edge region is an adjacent region of the first printing partition and the second printing partition, the edge region includes a first edge region and a second edge region, the preset first ratio is the proportion of ink droplets printed by the printhead module in the first edge region to the ink droplets to be printed, and the preset second ratio is the proportion of ink droplets printed by the printhead module in the second edge region to the ink droplets to be printed.

[0034] A third aspect of this application provides an electronic device including a processor, a memory, a user interface, and a network interface, wherein the memory is used to store instructions, the user interface and the network interface are both used to communicate with other devices, and the processor is used to execute the instructions stored in the memory to cause the electronic device to perform the method as described in any of the foregoing.

[0035] A fourth aspect of this application provides a computer-readable storage medium storing instructions that, when executed, perform the method described in any of the preceding descriptions.

[0036] The beneficial effects of this application include:

[0037] By dividing the printed pattern into printing zones and setting the ink droplet printing ratio on the printing zones, the film thickness at the seam between two passes can be reduced by adjusting the ink droplet printing ratio, thereby reducing the seam Mura pattern.

[0038] The first edge region is further divided into sub-edge regions, and different printing ratios are set for different sub-edge regions. By adjusting the printing ratio of the sub-edge regions, the film thickness of the sub-edge regions is adjusted. This enables the adjustment of the film thickness of the edge regions, making the adjustment of the film thickness of the edge regions more refined and accurate, and further reducing the above-mentioned seam Mura texture.

[0039] Based on the further subdivision of the first edge region into sub-edge regions, the second edge region, which is adjacent to the first edge region, is further subdivided into sub-edge regions. Different printing ratios are then set for different sub-edge regions. Furthermore, sub-edge regions with smaller printing ratios in the first and second edge regions are positioned adjacent to each other, resulting in a concave layout for all sub-edge regions. That is, sub-edge regions with higher printing ratios are located on the outer side of the edge region, while sub-edge regions with lower printing ratios are located on the inner side, further reducing seam murras.

[0040] For printing scenarios with specific requirements on film thickness, preset film thickness ranges are set. By comparing the current film thickness with the preset range, it can be determined whether the current film thickness meets the requirements; thus, the film thickness can be adjusted in this way to further reduce seam mura patterns.

[0041] When the set film thickness range is narrow, the film thickness in the edge area may still be unacceptable. In this case, the edge film thickness can be made acceptable by reconfiguring the landing point ratio of the first and second edge areas. Regardless of whether the edge film thickness is acceptable, this application can reduce the seam murmur between two adjacent passes; when the edge film thickness is acceptable, the seam murmur can be further reduced.

[0042] Consideration should be given to ink parameters (ink characteristics), especially ink leveling (ink leveling diameter). Different inks have different viscosities, resulting in different droplet diameters after printing. The X and Y spacing can be set according to the ink parameters to allow adjacent droplets to blend together and ensure consistent blending speed around the droplets, thus reducing murky seams. The X and Y spacing settings based on the ink parameters in the printhead module are empirical values ​​obtained from multiple tests. These settings can be manual or created by establishing a correspondence between commonly used inks and their corresponding X and Y spacings, and then automatically selecting the appropriate X and Y spacing based on the current ink parameters.

[0043] After setting the ink droplet landing point for the edge area, the printing pattern for the edge area is configured; the configuration of the printing pattern can further "blur" the seam between two prints, that is, the seam between two adjacent passes is no longer a straight line, thereby further reducing seam mura. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the seam structure for substrate printing disclosed in this application.

[0045] Figure 2 This is a schematic diagram of the edge region structure of a substrate printing method disclosed in this application specification;

[0046] Figure 3 This is a schematic diagram of a processing method involving seam mura disclosed in this application specification;

[0047] Figure 4A This is a schematic diagram of an ink droplet landing point with non-overlapping edge regions as disclosed in this application specification;

[0048] Figure 4B This is a schematic diagram of an ink droplet landing point with overlapping edge regions as disclosed in this application specification;

[0049] Figure 5A This is a schematic diagram of a "concave" layout structure of a sub-edge region disclosed in this application specification;

[0050] Figure 5B This is a schematic diagram of the shape structure of an edge region pattern disclosed in this application specification;

[0051] Figure 5C This is a schematic diagram of another edge region pattern shape structure disclosed in this application specification;

[0052] Figure 6 This is a schematic diagram of the structure of an inkjet printer device disclosed in this application.

[0053] In the figure: substrate 100, printhead module 101, seam 102, edge regions 200 and 300, edge region 201, ink droplet non-landing area 202, ink droplet landing area 203, first sub-edge region 501, second sub-edge region 502, third sub-edge region 503, and fourth sub-edge region 504. Detailed Implementation

[0054] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0055] In the description of the embodiments of this application, the words "for example" or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design that is described as "for example" or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Rather, the use of the words "for example" or "for instance" is intended to present the relevant concepts in a specific manner.

[0056] In the description of the embodiments of this application, the term "multiple" means two or more. For example, multiple systems means two or more systems, and multiple screen terminals means two or more screen terminals. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0057] The method disclosed in this specification addresses seam mura by adjusting the ink droplet ratio. Seam mura is caused by uneven film thickness at the seam. Specifically, the film thickness at the seam may be greater than in other areas (e.g., the center area of ​​a pattern printed in a single print by the printhead module); it may also result in inconsistent film thickness at the seam during two print runs. This specification addresses this by defining an edge region at the seam and adjusting the ink droplet ratio within that edge region to adjust the film thickness, thereby reducing seam mura.

[0058] This specification discloses a method for processing seams with Mura texture, such as... Figure 3 As shown. This method includes steps S110-S120. The subject of this specification is an inkjet printer.

[0059] Step S110: Divide the pattern to be printed into at least two printing zones; wherein, one printing zone is the area that the printhead module prints on the substrate in a single operation, and the at least two printing zones include a first printing zone and a second printing zone.

[0060] Step S120: Perform a printing operation on the edge region using a preset first ratio and a preset second ratio; wherein, the edge region is the adjacent region of the first printing partition and the second printing partition, the edge region includes the first edge region and the second edge region, the preset first ratio is the proportion of ink droplets printed by the printhead module in the first edge region to the ink droplets to be printed, and the preset second ratio is the proportion of ink droplets printed by the printhead module in the second edge region to the ink droplets to be printed.

[0061] At this point, this instruction manual does not limit the width of the edge area, which can be adjusted according to actual needs. By dividing the edge area into a first edge area and a second edge area, and by setting the ink droplet drop ratio, the film thickness in the first and second edge areas can be controlled, thereby reducing seam mura patterns. The preset values ​​for the first and second ratios can both be within the range of 10%-90%.

[0062] In the example above, the first edge region and the second edge region may or may not overlap. These two cases will be explained separately below.

[0063] In one example, when the first edge region and the second edge region do not overlap, the sum of the preset first ratio and the preset second ratio is preferably 100%-200%. Figure 4A For example, Figure 4A As shown, Figure 4Aa1 and a2 constitute edge region 201. a1 shows the first edge region (the region composed of ink droplet landing areas 203) in edge region 201, with a landing ratio (equivalent to the preset first ratio) of 100%; a2 shows the second edge region (the region composed of ink droplet landing areas 203) in edge region 201, with a landing ratio (equivalent to the preset second ratio) also of 100%. Figure 4A In the diagram, b1 and b2 constitute edge region 201. b1 shows the case where the first edge region (the region composed of ink droplet landing areas) has a landing rate of 100%, and b2 shows the case where the second edge region (the region composed of ink droplet landing areas) has a landing rate of 100%. Figure 4A In the example, the sum of the preset first ratio and the preset second ratio is 200%. The ink droplet landing area 203 and the ink droplet non-landing area 202 together constitute the ink droplet waiting area or the edge area in this specification.

[0064] In one example, when the first edge region and the second edge region overlap, the sum of the preset first ratio and the preset second ratio is 80%-120%. Overlapping areas include both complete and partial overlap of the edge regions. Figure 4B This is an example where the first and second edge regions completely overlap. Figure 4B For example, Figure 4B As shown, the first edge region a1 and the second edge region a2 constitute edge region 201, which is equivalent to the first edge region, the second edge region, and the edge region being the same area. a1 represents the first edge region, and the ink droplet landing point ratio (equivalent to the preset first ratio) is approximately 49%; a2 represents the second edge region, and the ink droplet landing point ratio (equivalent to the preset second ratio) is approximately 51%. At this time, the sum of the preset first ratio and the preset second ratio is 100%.

[0065] Figure 4B In the diagram, b1 and b2 constitute edge region 201. b1 represents a first edge region with an ink droplet landing point ratio of 57%; b2 represents a second edge region with an ink droplet landing point ratio of 57%. At this point, the sum of the preset first ratio and the preset second ratio is 114%.

[0066] In one example, the first edge region includes a first sub-edge region and a second sub-edge region; performing a printing operation in the edge region at a preset first ratio specifically includes: printing the first sub-edge region at a preset first sub-ratio and printing the second sub-edge region at a preset second sub-ratio; wherein, the preset first ratio includes a preset first sub-ratio and a preset second sub-ratio, the preset first sub-ratio is greater than the preset second sub-ratio, the preset first sub-ratio is the ratio of ink droplets printed in the first sub-edge region to the total number of ink droplets to be printed in the first edge region, and the preset second sub-ratio is the ratio of ink droplets printed in the second sub-edge region to the total number of ink droplets to be printed in the first edge region.

[0067] In this example, the first edge region is used as an example to further divide into sub-edge regions. The first edge region is further divided into multiple sub-edge regions; the example above uses two sub-edge regions, but this specification does not limit the number of sub-edge regions. This division method allows for setting the ink droplet drop ratio for any one of the sub-edge regions within the first edge region, thereby enabling adjustment of the film thickness in smaller areas (sub-edge regions). This further reduces seam ripples.

[0068] In one example, the second edge region includes a third sub-edge region and a fourth sub-edge region, and the second sub-edge region is adjacent to the third sub-edge region; performing a printing operation in the edge region at a preset second ratio specifically includes: printing the third sub-edge region at a preset third sub-ratio, and printing the fourth sub-edge region at a preset fourth sub-ratio; wherein, the preset second ratio includes a preset third sub-ratio and a preset fourth sub-ratio, the preset fourth sub-ratio is greater than the preset third sub-ratio, the preset third sub-ratio is the proportion of ink droplets printed in the third sub-edge region to the total number of ink droplets to be printed in the second edge region, and the preset fourth sub-ratio is the proportion of ink droplets printed in the fourth sub-edge region to the total number of ink droplets to be printed in the second edge region.

[0069] In this example, the preset first sub-scale and the preset fourth sub-scale can be the same, as can the preset second sub-scale and the preset third sub-scale. Of course, the ink droplet landing point ratio in each sub-edge region can be set according to actual needs; this manual does not impose any restrictions on this.

[0070] by Figure 5A Let's take an example to illustrate the above example.

[0071] exist Figure 5AIn the diagram, a1 and a2 constitute edge region 201. a1 shows the first edge region, including a first sub-edge region 501 and a second sub-edge region 502; the ink droplet ratio of the first sub-edge region 501 is greater than that of the second sub-edge region 502. a2 shows the second edge region, including a third sub-edge region 503 and a fourth sub-edge region 504; the ink droplet ratio of the fourth sub-edge region 504 is greater than that of the third sub-edge region 503. The second sub-edge region 502 and the third sub-edge region 503 are adjacent, and the four edge sub-regions form a "concave" structure. This layout of sub-edge regions can further reduce seam fretting.

[0072] In one example, before dividing the pattern to be printed into at least two printing zones, the method further includes: setting the X-pitch and Y-pitch corresponding to the ink parameters in the printhead module of the inkjet printer; and printing with the X-pitch and Y-pitch corresponding to the ink parameters; wherein the X-pitch is the interval distance between two adjacent ink droplets in the printing direction of the printhead module; and the Y-pitch is the interval distance between two adjacent ink droplets in the moving direction of the printhead module.

[0073] At this point, ink parameters (ink characteristics) should be considered, especially ink leveling (ink leveling diameter). Different inks have different viscosities, resulting in different droplet diameters after printing. The X and Y spacing can be set according to the ink parameters to allow adjacent droplets to blend together and ensure a consistent blending speed around the droplets, thus reducing murky seams. The X and Y spacing settings based on the ink parameters in the printhead module are empirical values ​​obtained from multiple tests. These settings can be manual or created by establishing a correspondence between commonly used inks and their corresponding X and Y spacings, and then automatically selecting the appropriate X and Y spacing based on the current ink parameters.

[0074] In one example, after performing the printing operation on the edge area, the method further includes: obtaining the film thickness of the edge area and determining whether the film thickness is within the preset film thickness range; if the film thickness of the edge area is within the preset film thickness range, then confirming that the film printing of the edge area is qualified.

[0075] In actual inkjet printing scenarios, there are often different requirements for film thickness. At the same time, by setting a preset film thickness range, it is possible to identify whether the film thickness in the edge area is qualified in a timely manner, and it is also possible to further reduce seam murmurs.

[0076] In one example, after determining whether the film thickness is within the preset film thickness range, the method further includes: if the film thickness in the edge region is outside the preset film thickness range, then confirming that the film printing in the edge region is unqualified; replacing the preset first ratio and the preset second ratio, and repeating the printing operation on the substrate until the film thickness printed in the edge region is qualified; wherein, replacing the preset first ratio and the preset second ratio specifically includes replacing the preset first ratio with a preset third ratio and replacing the preset second ratio with a preset fourth ratio.

[0077] This example demonstrates how to adjust the film thickness in the edge regions by adjusting the ratio of ink droplet landing points in the first and second edge regions. It should be noted that regardless of whether the film thickness is within or outside the preset film thickness range, the original ink droplet landing point ratio (the aforementioned preset first and second ratios) can reduce the seam mura pattern in this specification. By setting a preset film thickness range, the film thickness in the edge regions can be adjusted (selecting suitable film thicknesses), thus adapting to a wider range of inkjet printing scenarios and further reducing seam mura patterns.

[0078] Furthermore, the above discussion focused on the proportion of ink droplets falling in the edge region. When the proportion of ink droplets falling is fixed, multiple different patterns exist in the edge region; in other words, the pattern in the edge region is not fixed. The following discussion will further explore schemes for fixing patterns in the edge region.

[0079] In one example, before obtaining the film thickness of the edge region, the method further includes: configuring a first edge region as a first edge pattern and configuring a second edge region as a second edge pattern.

[0080] In the example above, based on the ink droplet ratio already set in the first edge region, the first edge region is configured with a fixed edge pattern; based on the ink droplet ratio already set in the second edge region, the second edge region is configured with a fixed edge pattern; through the fixed edge pattern design, the seam can be further "blurred" to reduce seam murmur.

[0081] This manual does not limit the shape of the first and second edge patterns in the edge region; they can be configured according to actual needs.

[0082] by Figure 5B For example, the preferred patterns are described below. In one example, the edge patterns of the first edge pattern and the second edge pattern include curved patterns and straight-line patterns. Figure 5BIn the diagram, a1 and a2 constitute edge region 201. The shaded part in a1 is the first edge pattern, and the shaded part in a2 is the second edge pattern. The edge patterns in a1 and a2 are straight lines. Figure 5B In the diagram, b1 and b2 constitute the edge region; the shaded area in b1 is the first edge pattern, and the shaded area in b2 is the second edge pattern. Both b1 and b2 are curved patterns. Both edge patterns can "blur" the seam, further reducing the seam Mura pattern. The shaded area is the ink droplet landing area 203, and the blank area is the ink droplet non-landing area 202.

[0083] In one example, a method for reducing mura when edge regions overlap is disclosed. Before obtaining the film thickness of the edge regions, the method further includes: configuring the first edge region as a third edge pattern and the second edge region as a fourth edge pattern; dividing both the third and fourth edge patterns into several rows, with the droplet drop rate of any row being a random number; wherein the droplet drop rate is the proportion of the number of droplets in any row to the total number of droplets, the total number of droplets including the number of droplets that have dropped and the number of droplets that have not dropped, and the sum of the droplet drop rates of the third and fourth edge patterns located in the same row is 1.

[0084] by Figure 5C For example, W is the printing width of the printhead module in the inkjet printer, and L is the length of the overlapping area of ​​the edges after two printheads; the shaded box in the figure is the landing point position, and the unshaded box is the non-landing point position. Figure 5C In the print width W, the number of rows is only for example and is not a limitation. a1 is the third edge pattern, and a2 is the fourth edge pattern. The ink droplet drop rate of any row in the print width a1 is random, and the ink droplet drop rate of each row is randomly planned by a random function; the ink droplet drop rate is the ratio of the number of drops to the total number (the sum of the number of drops and the number of no drops). For example, the first row in a1 illustrates 7 positions, with an ink droplet drop rate of 3 / 7; the second row has an ink droplet drop rate of 1 / 7; and the third row has an ink droplet drop rate of 5 / 7.

[0085] With the ink droplet rate randomized for each row, the total ink droplet rate for identical rows in a1 and a2 is 1. For example, the ink droplet rate of the first row in a2 is 4 / 7, which sums with the ink droplet rate of the first row in a1 (3 / 7) to 1; the ink droplet rate of the second row in a2 is 6 / 7, which sums with the ink droplet rate of the second row in a1 (1 / 7) to 1; and the ink droplet rate of the third row in a2 is 2 / 7, which sums with the ink droplet rate of the third row in a1 (5 / 7) to 1. This method also reduces the Mura pattern between two adjacent passes.

[0086] In one example, at least two print partitions also include other print partitions that form multiple edge regions; wherein any two edge regions may use the same or different patterns.

[0087] like Figure 2 As shown, two edge regions are illustrated: edge region 200 and edge region 300. The patterns of these two edge regions can be the same or different. This can be selected during the actual inkjet printing process; there are no restrictions on this.

[0088] In one example, the pattern to be printed is divided into at least two printing zones, which specifically includes: obtaining the substrate size to be printed and the single print size of the nozzle module; and dividing the pattern to be printed into at least two printing zones based on the substrate size and the single print size.

[0089] This application can reduce the Mura pattern at the seam between two adjacent passes.

[0090] This specification also discloses an inkjet printer. The inkjet printer includes a processor, a memory, a user interface, and a network interface. The memory stores instructions, the user interface and network interface are used for communication with other devices, and the processor executes the instructions stored in the memory to cause the inkjet printer to perform the following operations:

[0091] The pattern to be printed is divided into at least two printing zones; wherein, one printing zone is the area that the printhead module prints on the substrate in a single operation, and the at least two printing zones include a first printing zone and a second printing zone.

[0092] Printing is performed on the edge region using a preset first ratio and a preset second ratio. The edge region is the adjacent area of ​​the first printing zone and the second printing zone. The edge region includes the first edge region and the second edge region. The preset first ratio is the proportion of ink droplets printed by the printhead module in the first edge region to the ink droplets to be printed. The preset second ratio is the proportion of ink droplets printed by the printhead module in the second edge region to the ink droplets to be printed.

[0093] In one example, the first edge region includes a first sub-edge region and a second sub-edge region; performing a printing operation in the edge region at a preset first ratio specifically includes: printing the first sub-edge region at a preset first sub-ratio and printing the second sub-edge region at a preset second sub-ratio; wherein, the preset first ratio includes a preset first sub-ratio and a preset second sub-ratio, the preset first sub-ratio is greater than the preset second sub-ratio, the preset first sub-ratio is the ratio of ink droplets printed in the first sub-edge region to the total number of ink droplets to be printed in the first edge region, and the preset second sub-ratio is the ratio of ink droplets printed in the second sub-edge region to the total number of ink droplets to be printed in the first edge region.

[0094] In one example, the second edge region includes a third sub-edge region and a fourth sub-edge region, and the second sub-edge region is adjacent to the third sub-edge region; performing a printing operation in the edge region at a preset second ratio specifically includes: printing the third sub-edge region at a preset third sub-ratio, and printing the fourth sub-edge region at a preset fourth sub-ratio; wherein, the preset second ratio includes a preset third sub-ratio and a preset fourth sub-ratio, the preset fourth sub-ratio is greater than the preset third sub-ratio, the preset third sub-ratio is the proportion of ink droplets printed in the third sub-edge region to the total number of ink droplets to be printed in the second edge region, and the preset fourth sub-ratio is the proportion of ink droplets printed in the fourth sub-edge region to the total number of ink droplets to be printed in the second edge region.

[0095] In one example, after performing the printing operation on the edge area, the method further includes: obtaining the film thickness of the edge area and determining whether the film thickness is within the preset film thickness range; if the film thickness of the edge area is within the preset film thickness range, then confirming that the film printing of the edge area is qualified.

[0096] In one example, after determining whether the film thickness is within the preset film thickness range, the method further includes: if the film thickness in the edge region is outside the preset film thickness range, then confirming that the film printing in the edge region is unqualified; replacing the preset first ratio and the preset second ratio, and repeating the printing operation on the substrate until the film thickness printed in the edge region is qualified; wherein, replacing the preset first ratio and the preset second ratio specifically includes replacing the preset first ratio with a preset third ratio and replacing the preset second ratio with a preset fourth ratio.

[0097] In one example, when the first edge region and the second edge region overlap, the sum of the preset first ratio and the preset second ratio is 80%-120%.

[0098] In one example, when the first edge region and the second edge region do not overlap, the sum of the preset first ratio and the preset second ratio is 100%-200%.

[0099] In one example, before dividing the pattern to be printed into at least two printing zones, the method further includes: setting the X-pitch and Y-pitch corresponding to the ink parameters in the printhead module of the inkjet printer; and printing with the X-pitch and Y-pitch corresponding to the ink parameters; wherein the X-pitch is the interval distance between two adjacent ink droplets in the printing direction of the printhead module; and the Y-pitch is the interval distance between two adjacent ink droplets in the moving direction of the printhead module.

[0100] In one example, before obtaining the film thickness of the edge region, the method further includes: configuring a first edge region as a first edge pattern and configuring a second edge region as a second edge pattern.

[0101] In one example, the edge patterns of the first edge pattern and the second edge pattern include curved patterns and straight patterns.

[0102] In one example, at least two print partitions also include other print partitions that form multiple edge regions; wherein any two edge regions may use the same or different patterns.

[0103] In one example, the pattern to be printed is divided into at least two printing zones, which specifically includes: obtaining the substrate size to be printed and the single print size of the nozzle module; and dividing the pattern to be printed into at least two printing zones based on the substrate size and the single print size.

[0104] In one example, before obtaining the film thickness of the edge region, the method further includes: configuring the first edge region as a third edge pattern and configuring the second edge region as a fourth edge pattern; dividing both the third edge pattern and the fourth edge pattern into several rows, with the ink droplet landing rate of any row being a random number; wherein, the ink droplet landing rate is the proportion of the number of ink droplets landing in any row to the total number of landings, the total number of landings including the number of ink droplets landing and the number of ink droplets not landing in any row, and the sum of the ink droplet landing rates of the third edge pattern and the fourth edge pattern located in the same row is 1.

[0105] It should be noted that the above embodiments of the apparatus are only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0106] The specification also discloses a computer-readable storage medium storing instructions that, when executed, perform any of the methods described above.

[0107] This embodiment also discloses an electronic device, which is the inkjet printer described above. (Refer to...) Figure 6 The electronic device may include: at least one processor 601, at least one communication bus 602, user interface 603, network interface 604, and at least one memory 605.

[0108] The communication bus 602 is used to enable communication between these components.

[0109] The user interface 603 may include a display screen and a camera.

[0110] The network interface 604 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0111] The processor 601 may include one or more processing cores. The processor 601 connects to various parts of the server using various interfaces and lines, and performs various server functions and processes data by running or executing instructions, programs, code sets, or instruction sets stored in the memory 605, and by calling data stored in the memory 605. Optionally, the processor 601 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 601 may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content required for display; and the modem handles wireless communication. It is understood that the modem may also be implemented as a separate chip without being integrated into the processor 601.

[0112] The memory 605 may include random access memory (RAM) or read-only memory. Optionally, the memory 605 may include a non-transitory computer-readable storage medium. The memory 605 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 605 may include a program storage area and a data storage area. The program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch functionality, sound playback functionality, image playback functionality, etc.), instructions for implementing the various method embodiments described above, etc.; the data storage area may store data involved in the various method embodiments described above, etc. Optionally, the memory 605 may also be at least one storage device located remotely from the aforementioned processor 601. As shown in the figure, the memory 605, as a computer storage medium, may include an operating system, a network communication module, a user interface module, and application programs.

[0113] exist Figure 6 In the electronic device shown, the user interface 603 is mainly used to provide an input interface for the user and to obtain the user input data; while the processor 601 can be used to call the application program stored in the memory 605 for calculating the engineering construction cost. When executed by one or more processors 601, the electronic device executes one or more methods as described in the above embodiments.

[0114] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0115] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0116] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings or direct couplings or communication connections may be through some service interfaces; indirect couplings or communication connections between apparatuses or units may be electrical or other forms.

[0117] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0118] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0119] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage device 605. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage device 605 and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage device 605 includes various media capable of storing program code, such as a USB flash drive, external hard drive, magnetic disk, or optical disk.

[0120] The foregoing description is merely an exemplary embodiment of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. Those skilled in the art will readily conceive of other embodiments of this disclosure upon considering the specification and the disclosure of practical truth. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described in this disclosure. The specification and embodiments are considered exemplary only, and the scope and spirit of this disclosure are defined by the claims.

Claims

1. A method of processing involving a joint Mura, characterized in that, The method comprises: dividing a to-be-printed pattern into at least two printing sub-zones; wherein one printing sub-zone is a corresponding region printed by a nozzle module on a substrate in a single time, and the at least two printing sub-zones comprise a first printing sub-zone and a second printing sub-zone; performing a printing operation on an edge region in a preset first proportion and a preset second proportion; wherein the edge region is an adjacent region of the first printing sub-zone and the second printing sub-zone, the edge region comprises a first edge region and a second edge region, the preset first proportion is a proportion of ink droplets printed by the nozzle module for the first time to to-be-printed ink droplets of the first edge region, and the preset second proportion is a proportion of ink droplets printed by the nozzle module for the second time to to-be-printed ink droplets of the second edge region; after the printing operation on the edge region, the method further comprises: acquiring a film layer thickness of the edge region, and determining whether the film layer thickness is within a preset film layer thickness range; if the film layer thickness of the edge region is within the preset film layer thickness range, it is determined that the film layer printing of the edge region is qualified; after determining whether the film layer thickness is within the preset film layer thickness range, the method further comprises: if the film layer thickness of the edge region is outside the preset film layer thickness range, it is determined that the film layer printing of the edge region is unqualified; the preset first proportion and the preset second proportion are replaced, and the printing operation is repeatedly performed on the substrate until the film layer thickness of the edge region is qualified; wherein replacing the preset first proportion and the preset second proportion specifically comprises replacing the preset first proportion with a preset third proportion and replacing the preset second proportion with a preset fourth proportion.

2. The treatment method according to claim 1, characterized in that, The first edge region comprises a first sub-edge region and a second sub-edge region; performing the printing operation on the edge region in the preset first proportion specifically comprises: printing the first sub-edge region in a preset first sub-proportion and printing the second sub-edge region in a preset second sub-proportion; wherein the preset first proportion comprises the preset first sub-proportion and the preset second sub-proportion, the preset first sub-proportion is greater than the preset second sub-proportion, the preset first sub-proportion is a proportion of ink droplets printed in the first sub-edge region to to-be-printed ink droplets of the first edge region, and the preset second sub-proportion is a proportion of ink droplets printed in the second sub-edge region to to-be-printed ink droplets of the first edge region.

3. The treatment method according to claim 2, characterized in that, The second edge region comprises a third sub-edge region and a fourth sub-edge region, and the second sub-edge region is adjacent to the third sub-edge region; performing the printing operation on the edge region in the preset second proportion specifically comprises: printing the third sub-edge region in a preset third sub-proportion and printing the fourth sub-edge region in a preset fourth sub-proportion; wherein The preset second proportion includes a preset third sub-proportion and a preset fourth sub-proportion, the preset fourth sub-proportion is greater than the preset third sub-proportion, the preset third sub-proportion is a proportion of ink drops printed in the third sub-edge region to ink drops to be printed in the second edge region, and the preset fourth sub-proportion is a proportion of ink drops printed in the fourth sub-edge region to ink drops to be printed in the second edge region.

4. The treatment method of claim 1, wherein When the first edge region and the second edge region have an overlapping region, a sum of the preset first proportion and the preset second proportion is 80%-120%; When the first edge region and the second edge region have no overlapping region, a sum of the preset first proportion and the preset second proportion is 100%-200%.

5. The treatment method of claim 1, wherein Before the pattern to be printed is divided into at least two printing sub-regions, the method further comprises: According to ink parameters in a printhead module of an inkjet printer, setting X and Y intervals corresponding to the ink parameters; Printing with the X and Y intervals corresponding to the ink parameters; wherein the X interval is a spacing distance between adjacent two ink drops in a printing direction of the printhead module, and the Y interval is a spacing distance between adjacent two ink drops in a moving direction of the printhead module.

6. The treatment method of claim 1, wherein Before the film layer thickness of the edge region is obtained, the method further comprises: The first edge region is configured as a first edge pattern, and the second edge region is configured as a second edge pattern; wherein the edge patterns of the first edge pattern and the second edge pattern include a curved pattern and a straight line pattern.

7. The treatment method of claim 1, wherein Before the film layer thickness of the edge region is obtained, the method further comprises: The first edge region is configured as a third edge pattern, and the second edge region is configured as a fourth edge pattern; The third edge pattern and the fourth edge pattern are both divided into a plurality of rows, and a drop point rate of any row is a random number; wherein the drop point rate is a proportion of ink drop point numbers in any row to total drop point numbers, the total drop point numbers include ink drop point numbers and non-ink drop point numbers in any row, and a sum of ink drop point rates of the third edge pattern and the fourth edge pattern in the same row is 1.

8. An inkjet printer characterized by comprising: The inkjet printer includes a processor, a memory, a user interface, and a network interface, the memory is used to store instructions, the user interface and the network interface are both used to communicate with other devices, and the processor is used to execute the instructions stored in the memory to enable the inkjet printer to perform a processing method related to a joint Mura pattern according to any one of claims 1-7.

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