CN108944034B - Ink jet printing method, ink jet printing apparatus, storage medium, and computer apparatus - Google Patents
Ink jet printing method, ink jet printing apparatus, storage medium, and computer apparatus Download PDFInfo
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- CN108944034B CN108944034B CN201711497602.2A CN201711497602A CN108944034B CN 108944034 B CN108944034 B CN 108944034B CN 201711497602 A CN201711497602 A CN 201711497602A CN 108944034 B CN108944034 B CN 108944034B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
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Abstract
The invention relates to an inkjet printing method, an inkjet printing apparatus, a storage medium, and a computer apparatus, the inkjet printing method including the steps of: acquiring a printing task and parameter information of each currently available ink jet printing head; selecting the ink-jet printing heads according to the acquired printing tasks and the currently available parameter information of each ink-jet printing head; and controlling the selected ink jet print head to execute the printing task. According to the ink-jet printing method, the ink-jet printing equipment, the ink-jet printing device, the storage medium and the computer equipment, the phenomenon that the ink-jet printing is uneven and even the printing task cannot be completed in the ink-jet printing process is avoided by the selected currently available ink-jet printing head, the number and the type of the ink-jet printing heads completing the printing task are selected according to the acquired printing task information and the parameter information of the ink-jet printing heads, so that the selected ink-jet printing heads can successfully complete the printing task, and the use is more convenient.
Description
Technical Field
The present application relates to inkjet printing technology, and more particularly, to an inkjet printing method, apparatus, device, storage medium, and computer apparatus.
Background
In the manufacturing process of an OLED (Organic Light-Emitting Diode), an inkjet printing method has the advantages of high material utilization rate, short manufacturing time and the like, so that the manufacturing of OLED products by the inkjet printing method is regarded by more and more manufacturers, wherein some functional materials such as a hole injection layer, a hole transport layer and a Light-Emitting layer can be manufactured by the inkjet printing process, that is, in a known pixel unit, functional layer material ink is dripped into the pixel unit by the inkjet printing method.
The implementation of an inkjet printing process requires a device to be filled with functional material ink, which is generally referred to as inkjet print heads, each of which is filled with an ink material. The traditional ink-jet printing process generally selects the used ink-jet printing heads according to the printing requirements and the number of nozzles of the ink-jet printing heads, and in general, one ink-jet printing head can complete the corresponding printing task, but when special conditions such as failure of partial nozzles of the ink-jet printing heads occur, the ink-jet printing heads need to be selected again, and the use is not convenient enough.
Disclosure of Invention
In view of the above, it is necessary to provide an inkjet printing method, an apparatus, a device, a storage medium, and a computer apparatus, which are convenient to use, in view of the problem of insufficient convenience in use.
A method of inkjet printing comprising the steps of:
acquiring a printing task and parameter information of each currently available ink jet printing head;
selecting the ink-jet printing heads according to the acquired printing tasks and the currently available parameter information of each ink-jet printing head;
controlling the selected inkjet print head to perform the print job.
According to the ink-jet printing method, the phenomenon that the ink-jet printing is uneven and even the printing task cannot be completed in the ink-jet printing process is avoided by the selected currently available ink-jet printing head, the number and the type of the ink-jet printing heads which complete the printing task are selected according to the acquired printing task information and the parameter information of the ink-jet printing heads, so that the selected ink-jet printing heads can smoothly complete the printing task, and the use is more convenient.
In one embodiment, the print job includes job parameters and a preset print time limit, and the step of selecting the inkjet print heads according to the acquired print job and the currently available parameter information of each inkjet print head includes:
comparing and analyzing the currently available parameter information of each ink jet printing head to obtain a comparison result;
and selecting the ink-jet printing head based on the task parameter, the preset printing limit time and the comparison result.
In one embodiment, the parameter information of each of the inkjet print heads is different, and the step of comparing and analyzing the currently available parameter information of each of the inkjet print heads to obtain the comparison result comprises:
the nozzle parameters in the parameter information are compared and analyzed, the priority ranking is carried out on the ink-jet printing heads, and the ink-jet printing heads which are used preferentially are determined;
or, the printing parameters in the parameter information are compared and analyzed, the ink-jet printing heads are prioritized, and the ink-jet printing heads used preferentially are determined.
Or comparing and analyzing nozzle parameters in the parameter information, performing priority ranking on the inkjet printing heads according to the nozzle parameters, determining the inkjet printing heads with the optimal nozzle parameters, comparing and analyzing printing parameters in the parameter information of the inkjet printing heads with the optimal nozzle parameters when a plurality of inkjet printing heads with the optimal nozzle parameters exist, performing priority ranking on the inkjet printing heads with the optimal nozzle parameters according to the printing parameters, and determining the inkjet printing heads with the optimal printing parameters in the inkjet printing heads with the optimal nozzle parameters.
In one embodiment, the parameter information includes a printing speed of the inkjet print heads, and the step of comparing and analyzing the currently available parameter information of each inkjet print head to obtain the comparison result includes:
sorting currently available ink jet printing heads according to the printing speed to obtain an ink jet printing head queue;
the step of selecting an inkjet print head based on the job parameter, a preset print definition time and the comparison result comprises:
acquiring the time required by each ink jet printing head of the ink jet printing head queue to execute the printing task based on the task parameters and the printing speed to obtain a printing time set, wherein the printing time comprises the shortest printing time;
acquiring the ink jet printing heads corresponding to the shortest printing time and the number of the ink jet printing heads;
and when the product of the shortest printing time and the number of the ink jet printing heads is greater than or equal to the preset printing limit time, selecting the ink jet printing head corresponding to the shortest printing time based on the preset printing limit time.
In one embodiment, after the step of controlling the selected inkjet print head to execute the print job, the method further includes:
when one task parameter in the printing tasks is updated, analyzing the updated task parameter to obtain a comparison result of the time required by the current ink-jet printing head to finish the current printing task and the time required by updating the printing task;
if the time required for completing the updated printing task is less than the time required for completing the current printing task, the current ink-jet printing head is used for completing the updated printing task;
and if the time required for completing the updated printing task is longer than the time required for completing the current printing task, adjusting the number of the current ink-jet printing heads according to the time required for completing the updated printing task and the printing limit time, and completing the updated printing task.
In one embodiment, after the step of controlling the selected inkjet print head to execute the print job, the method further includes:
when one printing parameter of the ink-jet printing head is updated, a comparison result of the time required for completing the current printing task between the current ink-jet printing head and the updated ink-jet printing head is obtained through analysis of the updated printing parameter;
if the time required for updating the ink-jet printing heads is less than the time required for the current ink-jet printing heads, the current printing task is finished by using the updated ink-jet printing heads with the same number as the current ink-jet printing heads;
and if the time required for updating the ink-jet printing heads is longer than the time required for the current ink-jet printing heads, adjusting the number of the updated ink-jet printing heads according to the time required for finishing updating the ink-jet printing heads and the printing limit time, and finishing the current printing task.
In one embodiment, after the step of controlling the selected inkjet print head to execute the print job, the method further includes:
when one printing parameter of the ink-jet printing head and one task parameter of the printing task are updated simultaneously, analyzing the updated printing parameter and the updated printing task respectively;
judging the influence proportion of the updated printing parameters and the updated printing tasks on the required printing time according to the analysis result;
and adjusting the required ink jet printing head according to the updated data with the larger influence on the required printing time, so as to finish the updated printing task.
An ink jet printing apparatus comprising a controller and an ink jet print head receiving member for receiving a plurality of ink jet print heads, said controller being adapted to control the ink jet print heads on said ink jet print head receiving member to perform a printing task in accordance with said ink jet printing method.
According to the ink-jet printing equipment for realizing the ink-jet printing method, the controller is used for controlling the ink-jet printing head on the ink-jet printing head bearing part to complete the printing task according to the ink-jet printing method, so that the control process is simpler, and the ink-jet printing head bearing part used for bearing the ink-jet printing heads can realize simultaneous printing of one or more ink-jet printing heads in the ink-jet printing process, so that the use is more convenient.
An inkjet printing apparatus comprising:
the information acquisition module is used for acquiring the printing task and the currently available parameter information of each ink jet printing head;
the ink-jet printing head selection module is used for selecting the ink-jet printing heads according to the acquired printing tasks and the currently available parameter information of each ink-jet printing head;
and the printing control module is used for controlling the selected ink jet printing head to execute the printing task.
According to the ink-jet printing device, the phenomenon that the printing task cannot be finished even due to uneven ink-jet is avoided in the ink-jet printing process by the selected currently available ink-jet printing head, the number and the type of the ink-jet printing heads which finish the printing task are selected according to the acquired printing task information and the parameter information of the ink-jet printing heads, so that the selected ink-jet printing heads can smoothly finish the printing task, and the use is more convenient.
A computer apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the inkjet printing method when executing the program.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the inkjet printing method.
According to the computer equipment and the computer readable storage medium for realizing the ink jet printing method, the phenomenon that the ink jet is uneven and even the printing task cannot be completed in the ink jet printing process is avoided by selecting the currently available ink jet printing head, and the number and the type of the ink jet printing heads completing the printing task are selected according to the acquired printing task information and the parameter information of the ink jet printing heads, so that the selected ink jet printing heads can successfully complete the printing task, and the use is more convenient.
Drawings
FIG. 1 is a schematic flow chart of an ink jet printing method according to one embodiment of the present application;
FIG. 2 is a schematic flow chart of an ink jet printing method according to another embodiment of the present application;
FIG. 3 is a schematic flow chart of an ink jet printing method according to another embodiment of the present application;
FIG. 4 is a schematic flow chart of an ink jet printing method according to another embodiment of the present application;
FIG. 5 is a schematic flow chart of an ink jet printing method according to another embodiment of the present application;
FIG. 6 is a schematic flow chart of an ink jet printing method according to another embodiment of the present application;
fig. 7 is a schematic structural diagram of an inkjet printhead receiving member and an inkjet printhead of an inkjet printing apparatus according to another embodiment of the present application.
FIG. 8 is a schematic view of an ink jet printing apparatus according to one embodiment of the present application;
fig. 9 is a schematic structural diagram of an inkjet printing apparatus according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
As shown in fig. 1, an inkjet printing method includes the steps of:
in step S100, a print job and parameter information of each currently available inkjet print head are obtained.
The printing task refers to a printing work that the inkjet printing head needs to complete according to a setting requirement, the setting requirement may include, in manufacturing an OLED product, the size of a substrate to be printed, a film layer (e.g., a film layer material, a film thickness) to be printed for a pixel size on the substrate, and a limitation on a time for completing the printing work. In an inkjet printing apparatus, there are a plurality of inkjet print heads, but due to the influence of parameters of the inkjet print heads themselves or other factors, during the inkjet printing process, there may be some situations that the inkjet print heads cannot be used normally, and even the inkjet printing is not uniform, so that it is necessary to determine the currently available inkjet print heads. The parameter information of the inkjet print head includes nozzle parameters and printing parameters, and is attribute information of the inkjet print head for implementing a print job.
Step S200, selecting the ink jet print heads according to the acquired printing tasks and the currently available parameter information of each ink jet print head.
Different ink jet printing heads have different parameter information, and according to the acquired printing task, the ink jet printing heads can be selected by comparing the length of time required for the ink jet printing heads with different parameters to complete the same printing task. Where the selection of the type and number of ink jet print heads may be included, the determination of whether a print job can be completed at a time defined in the print job may be made by multiplying the time and number required for the different types of ink jet print heads to complete the print job.
And step S300, controlling the selected ink jet printing head to execute a printing task.
The number of the selected ink jet print heads can be one or more, and when the selected ink jet print heads are controlled to execute a printing task, each ink jet print head can be divided into tasks according to the number of the ink jet print heads, so that the ink jet printing task can be completed in a coordinated manner.
According to the ink-jet printing method, the phenomenon that the ink-jet printing is uneven and even the printing task cannot be completed in the ink-jet printing process is avoided by the selected currently available ink-jet printing head, the ink-jet printing heads with different parameter information need different time for completing the printing task, and the number and the types of the ink-jet printing heads completing the printing task are selected according to the acquired printing task information and the parameter information of the ink-jet printing heads, so that the selected ink-jet printing heads can successfully complete the printing task, and the use is more convenient.
As shown in fig. 2, in one embodiment, the print job includes job parameters and a preset print time limit, and step S200 includes step S220 and step S240.
Step S220, comparing and analyzing the currently available parameter information of each inkjet print head to obtain a comparison result.
The parameter information of the inkjet print head includes nozzle parameters and printing parameters, the nozzle parameters may include parameters such as an ink drop speed, an ink drop volume, and an ink drop angle when the nozzle performs inkjet printing, and the printing parameters may include parameters such as a printing speed of the inkjet print head. The ink drop speed refers to the speed of ink drop of a nozzle of the ink jet printing head, and the printing speed of the ink jet printing head refers to the relative movement speed of the ink jet printing head and the printing substrate in the printing process. In the process of comparative analysis, various parameters can be classified firstly, the priority of the parameters is determined, the parameters are compared and analyzed in a grading mode, and for the same type of parameters, the parameters can be compared by comparing the time required for completing the same task, so that a comparison result is obtained.
In one embodiment, the nozzle parameters of the inkjet print head may be obtained according to the titration correction result, and specifically may include: and (3) performing titration correction on each ink-jet printing head respectively to obtain the titration correction result of each ink-jet printing head, and obtaining the nozzle parameter information of the ink-jet printing head according to the titration correction result. Titration correction refers to a process of correcting parameters of nozzles of an ink jet printing head, such as ink drop speed, ink drop volume, ink drop angle and the like according to target values, obtaining corrected determination parameter values, and determining the number and the positions of the nozzles meeting titration specifications in the ink jet printing head according to set titration judgment parameters and printing tasks. And the nozzle parameter information comprises information such as the number and the position of nozzles, the ink drop speed, the ink drop volume, the ink drop angle and the like which meet the titration standard in the ink jet printing head, which are obtained from the titration correction result. According to the set titration judging parameter, the ink jet printing head with the nozzle parameter information meeting the titration standard can be selected.
The printing parameters refer to other parameter information of the ink jet printing head besides the nozzle parameters determined in the titration correction process, such as printing speed, solid content of ink and the like. The solid content of the ink refers to the mass percentage of the rest part of the printing material in the ink-jet printing head in the total amount after being dried under the specified conditions, and the solid content of the same type of material is different, the required ink drops are different in quantity, and the printing time is also different. The solid content of the ink can be controlled by the ink filled in the ink-jet printing head, and the printing speed can be set and adjusted before the printing is started and in the switching process of the printing process. It can be understood that the printing parameters and the nozzle parameters are not acquired sequentially, the printing parameters can be acquired first, the nozzle parameters can be acquired first, and the printing parameters and the nozzle parameters can be acquired simultaneously.
In one embodiment, step S220 includes: the inkjet print heads are prioritized by comparing nozzle parameters in the analysis parameter information, and the inkjet print heads to be preferentially used are determined.
When the printing parameters are the same, the time required for the ink jet print heads of different nozzle parameters to complete the print job is compared. Specifically, the currently available inkjet printing heads are sequenced according to the number of nozzles to obtain an inkjet printing head queue, the time required for each inkjet printing head of the inkjet printing head queue to execute a printing task is obtained based on task parameters and the number of nozzles to obtain a printing time set, and the inkjet printing heads which are preferentially used are determined. For example, for the same glass substrate and the same pixel design, that is, the size of the glass substrate and the size of the pixel are known, according to the process requirements, the ink jet printing process of the ink material of the hole injection layer is carried out, the number of ink drops expected to be dropped in each pixel is known, the number of nozzles meeting the titration standard in the number 1 ink jet printing head is substituted for calculation, and in the case that the number of nozzles meeting the titration standard is 100, for the given number of pixels and the pixel size, for example, the printing time is 100 s; and substituting the number 70 of nozzles meeting the titration standard in the ink jet print head No. 2 into the calculation, for example, the time required for completing the printing is 130s, the time required by the ink jet print head No. 1 is shorter than that of the ink jet print head No. 2, and at the moment, the system can call the ink jet print head No. 1 preferentially. In the titration correction process, correction is carried out according to a target value, so that differences of ink drop speed, ink drop volume and ink drop angle among different nozzles are small, and the influence of the number of nozzles meeting the titration standard on printing time is preferably considered. When a plurality of ink jet print heads with the same number of nozzles meeting the titration standard exist, the influence of other different nozzle parameters on the printing time can be integrated to determine the ink jet print head to be preferentially selected.
In one embodiment, step S220 includes: the inkjet print heads are prioritized by comparing the print parameters in the analysis parameter information, and the inkjet print heads to be preferentially used are determined.
When the nozzle parameters are the same, comparing the time required by the ink jet printing heads with different printing parameters to finish the printing task, for example, when the printing task is determined, if the ink jet printing heads with the high printing speed have different printing speeds, the time required by the ink jet printing heads with the high printing speed to finish the printing task is shorter, and the ink jet printing heads with the high printing speed can be preferentially selected; if the time required for the ink-jet printing head with high solid content to complete the printing task is shorter, the ink-jet printing head with high solid content of the ink is preferably selected. When the solid content of the ink and the printing speed are different, the influence of the solid content of the ink on the printing time can be prioritized because the adjustment of the printing speed is simpler compared to the replacement of an inkjet print head of different ink. It is understood that the influence conditions may be preferentially selected according to the influence proportion, or the influence conditions may be preferentially selected according to preset conditions.
In one embodiment, step S220 includes: and when a plurality of ink-jet print heads with the optimal nozzle parameters exist, the ink-jet print heads with the optimal nozzle parameters are subjected to the priority sequencing according to the printing parameters by comparing and analyzing the printing parameters in the parameter information of the ink-jet print heads with the optimal nozzle parameters, and the ink-jet print heads with the optimal nozzle parameters are determined.
When the nozzle parameters and the printing parameters of the ink-jet printing heads are different, compared with the printing parameters, the nozzle parameters after titration correction are generally relatively fixed and have large influence on the printing time, the priority using level of the nozzle parameters is considered firstly, the ink-jet printing head with the shortest time required for completing the printing task in the ink-jet printing heads with different nozzle parameters is selected, and then the ink-jet printing head preferentially used in the ink-jet printing heads with the shortest time for printing and with different printing parameters is determined according to the printing task information and the printing parameters of the ink-jet printing heads with the shortest time for printing.
In step S240, the inkjet print head is selected based on the job parameter, the preset print limit time, and the comparison result.
According to the comparison result, the inkjet printing head with better performance can be selected, but different printing time is required for completing different task parameters, the length of the printing time is an important condition for determining whether the printing film formation is uniform, because the interval time between the area for firstly performing inkjet printing and the area for finally performing inkjet printing on the substrate is too long, the difference of the drying degree of the ink material is too large, and the film formation quality is not uniform after the subsequent decompression drying process is performed, so the printing limit time must be set. And selecting the ink jet printing head which can finish the printing work within the preset printing limited time in the comparison result according to the printing parameters in the printing task. The selection of the ink jet printing heads comprises the selection of types and the number of the ink jet printing heads, the priority using level of the ink jet printing heads is determined according to different parameter information, the ink jet printing heads which are used preferentially are selected, whether the selected ink jet printing heads can complete a printing task within a preset printing limit time is judged, when the required time exceeds the printing limit time, the number of the corresponding ink jet printing heads is increased, and if the number is not enough, the ink jet printing heads which are used preferentially are selected according to the using priority of the ink jet printing heads, and the using number is determined.
Specifically, as shown in fig. 3, in one embodiment, the parameter information includes a printing speed of the inkjet printhead, and step S220 specifically includes: and sequencing the currently available ink jet printing heads according to the printing speed to obtain an ink jet printing head queue.
The printing speed is an important factor for determining the time required for completing the printing task, the faster the printing speed is, the shorter the time required for completing the same printing task is, the inkjet printing heads are sequenced from the fast to the slow printing speed according to the printing speed of each inkjet printing head, and each inkjet printing head arranged in sequence is an inkjet printing head queue.
Step S240 includes step S242 and step S244.
Step S242, obtaining the time required for each inkjet print head of the inkjet print head queue to execute the print job based on the job parameter and the print speed, and obtaining a print time set, where the print time includes the shortest print time.
After the inkjet printing heads are sequenced according to the printing speed to obtain the inkjet printing head queue, because the printing task needs to be completed within a limited time, the time required by each inkjet printing head of the inkjet printing head queue to execute the printing task needs to be obtained based on the task parameters and the printing speed, each inkjet printing head can correspond to different printing times due to different printing speeds, the inkjet printing heads in the inkjet printing head queue correspond to the printing times in the printing time set one by one, and the inkjet printing head with the fastest printing speed has the shortest printing time.
In step S244, the inkjet print heads and the number of inkjet print heads corresponding to the shortest printing time are obtained.
According to the inkjet printing head queue arranged according to the printing speed, the inkjet printing head with the highest printing speed can be preferentially selected for use, namely the inkjet printing head corresponding to the shortest printing time, after the inkjet printing head is selected, whether the shortest printing time is within the limited printing time needs to be judged, when the printing time exceeds the limited printing time, the number of the inkjet printing heads is obtained, and the inkjet printing heads can be selected according to the relation between the product of the printing time and the number of the inkjet printing heads and the printing limited time, so that the printing time is controlled within the limited time.
Specifically, when the product of the shortest printing time and the number of inkjet print heads is greater than or equal to a preset printing limit time, the inkjet print head corresponding to the shortest printing time is selected based on the preset printing limit time. And when the product of the shortest printing time and the number of the ink jet printing heads is less than the preset printing limit time, continuing to select the ink jet printing head corresponding to the second short printing time.
For example, in an actual printing process, it is required to complete a printing task within 120S, the time required by the first inkjet print head with the fastest printing speed, that is, the shortest printing time in the inkjet print head queue is 80S, the time required by the second inkjet print head with the second shortest printing time is 100S, and the time required by the third inkjet print head with the third shortest printing time is 150S. If the number of the first ink jet print heads which can be selected is only one, two second ink jet print heads are selected to complete the printing task, and the like, so that the selection of the ink jet print heads is completed.
It will be appreciated that the selection of ink jet print heads for which other parameter information, such as nozzle parameters or printing parameters, are different, may also be selected in accordance with the methods described above. Such as ink jet print heads with different numbers of nozzles, ink jet print heads with different ink materials, etc.
As shown in fig. 4, in an embodiment, after step S300, the method further includes:
in step S420, when one task parameter in the print task is updated, a comparison result of time required for the current inkjet print head to complete the current print task and update the print task is obtained by analyzing the updated task parameter.
In step S440, if the time required for completing the print job is less than the time required for completing the current print job, the current inkjet printhead is used to complete the print job.
In step S460, if the time required for completing the print job is longer than the time required for completing the current print job, the number of the current inkjet print heads is adjusted according to the time required for completing the print job and the printing time limit.
In an inkjet printing process, different processes are involved, and there may be a change in a certain parameter between each different process, and at this time, the specifications and number of inkjet print heads need to be adapted. When one job parameter in the print job is updated, such as the change of the size of the pixel to be printed, for convenience of description, the pixel sizes are distinguished according to the degree of tightness of the pixel unit arrangement, the pixel size with relatively tight pixel unit arrangement is called high-resolution pixel size, the pixel size with relatively loose pixel unit arrangement is called low-resolution pixel size, and the pixels with different resolutions need different printing time. For example, there are two pixel designs: the first pixel size is long: 0.175mm, width: 0.060mm, pixel row to row spacing: 0.095mm, pixel column to column spacing: 0.115 mm; the second pixel size is long: 0.222mm, width: 0.065mm, pixel row to row spacing: 0.111mm, pixel column to column spacing: 0.111 mm. In practical application, under the condition of the same size of the glass substrate, the number of the first pixel matrix arrangement is larger than that of the second pixel matrix arrangement, namely, the first pixel arrangement is more compact, so that the printing time required by the first pixel is longer than that of the second pixel. When the printing process has the printing tasks of the first pixel, and needs to be changed to the printing tasks of the second pixel, according to the analysis result, the printing time of the second pixel is shorter than that of the first pixel, so that the printing tasks of the second pixel can be completed by directly using the ink jet printing head which completes the printing tasks of the first pixel. If the second pixel printing task is completed and the printing task of the first pixel needs to be replaced, the printing time of the second pixel is shorter than that of the first pixel according to the analysis result, the time for completing the first pixel printing task by using the ink jet printing head for completing the second pixel printing task needs to be acquired, and if the time is longer than the printing limit time, the number of the ink jet printing heads is increased, so that the printing time is controlled within the printing limit time.
In the printing process, each substrate may need to complete multi-layer printing, different film layers need to use different types of printing ink materials, corresponding to different film thicknesses, different printing tasks of the film layers need ink jet printing heads with different inks, and after the ink materials are determined according to the film layer types, whether the number of the ink jet printing heads needs to be adjusted or not needs to be judged. Assuming that the parameters of the ink-jet printing head of the material A are the same as those of the material B, the thickness of the first film layer required to be printed by the material A is 25um, the thickness of the second film layer required to be printed by the material B is 60um, and establishing a corresponding relation between the film thickness in the pixel unit and the number of ink drops of the corresponding material, if the material A is used for printing the pixel unit with the film thickness of 25um, 12 drops are required, the material B is used for printing the pixel unit with the film thickness of 60um, 18 drops are required, according to the required number of the ink drops, the length of time required for printing each film layer can be judged when the ink-jet printing head using the same parameters is used, and when a printing task with only film layer change is completed, the.
As shown in fig. 5, in an embodiment, after step S300, the method further includes:
in step S520, when one printing parameter of the inkjet print head is updated, a comparison result of the time required for completing the current printing task between the current inkjet print head and the updated inkjet print head is obtained through analyzing the updated printing parameter.
In step S540, if the time required for updating the inkjet print heads is less than the time required for the current inkjet print heads, the updated inkjet print heads with the same number as the current inkjet print heads are used to complete the updated print task.
In step S560, if the time required for updating the inkjet print heads is longer than the current time required for updating the inkjet print heads, the number of the updated inkjet print heads is adjusted according to the time required for updating the inkjet print heads and the printing limit time.
When the printing task is not changed, but the printing parameters of the inkjet printing heads, such as the printing speed, are changed, because the inkjet printing heads with high printing speed finish the same printing task within a significantly shorter time, when the printing speed is adjusted to be higher than the current printing speed, the printing task can be finished within a printing limit time without increasing the number of the inkjet printing heads, when the printing speed is adjusted to be lower than the current printing speed, the time required by the adjusted printing speed to finish the printing task needs to be acquired, whether the time is within the printing limit time or not is judged, and the number of the inkjet printing heads is adjusted according to the judgment result.
As shown in fig. 6, in an embodiment, after step S300, the method further includes:
in step S620, when one printing parameter of the inkjet printing head and one job parameter of the printing job are updated simultaneously, the updated printing parameter and the updated printing job are analyzed respectively.
And step S640, judging the influence proportion of the updated printing parameters and the updated printing tasks on the required printing time through the analysis result.
In step S660, the desired inkjet print head is adjusted according to the updated data having a greater influence on the desired printing time.
Taking as an example that the pixel size in the print job and the print speed in the print parameters are simultaneously changed, the first pixel having high accuracy in the pixel size is changed to the second pixel having low accuracy, and the first ink jet print speed of a mm/sec is changed to the second ink jet print speed of b mm/sec, where a > b.
The ongoing process is that the first pixel is matched with the printing speed a to carry out ink-jet printing, the printing time is less than the printing limit time, through comparison analysis, the time required by the second pixel is matched with the printing speed a to carry out ink-jet printing is less than the first pixel, the time required by the first pixel is matched with the printing speed b to carry out ink-jet printing is greater than the first pixel, the printing time is subjected to ink-jet printing, at the moment, the number of the ink-jet printing heads required by the second pixel is judged to depend on the influences of the pixel size and the printing speed on the printing time, if the change of the printing speed obtained through analysis according to the difference of the required time is larger than the change of the printing time, the influence of the change of the printing pixels is ignored, and the ink-jet printing heads required by the ink-jet printing are carried out according to the first pixel, selection of the inkjet print head is performed.
If the parameters of the ink-jet printing heads are not changed, when the parameters of two tasks in a printing task, such as printing pixels and film layer materials, are changed simultaneously, the ink-jet printing heads corresponding to the materials need to be selected, and the number of the ink-jet printing heads needs to be determined.
Take the example that when the first pixel with high precision is changed into the second pixel with low precision, the printing material is changed from the material A to the material B, and the printing on the same pixel unit is completed, the number of drops required by the material A is smaller than that required by the material B. The ongoing printing process is that the first pixel matching material A is subjected to ink-jet printing, and the required time is less than the printing limit time; through comparative analysis, the time required for ink-jet printing of the second pixel matching material A is shorter than that of the first pixel matching material A; through comparative analysis, the time required for ink-jet printing of the first pixel matching material B is longer than that of the first pixel matching material A; at this time, the number of the ink jet print heads required for ink jet printing of the second pixel collocation material B is judged to depend on the pixel size and the influence of the printing material on the printing time, if the change of the printing material is obtained to be larger in the change amount of the printing time according to the difference analysis of the required time, the influence of the change of the printing pixels is ignored, and the number of the ink jet print heads required for ink jet printing of the first pixel collocation printing material B is determined.
In one embodiment, after step S300, the method further includes:
when the ink-jet printing heads of multiple materials are needed in the same printing process, the ink-jet printing heads of the different materials are controlled to alternately work according to the printing requirements.
Specifically, when the functional ink material of the light emitting layer is printed in the development of the OLED device, in order to achieve that the three ink materials of red, green and blue can simultaneously complete the ink jet printing process, the three ink jet print heads alternately print according to the printing requirements of each pixel unit.
An ink-jet printing device comprises a controller and an ink-jet printing head bearing part for bearing a plurality of ink-jet printing heads, wherein the controller is used for controlling the ink-jet printing heads on the ink-jet printing head bearing part to complete a printing task according to an ink-jet printing method.
The ink jet print head receiving member is coupled to the ink jet print head as shown in fig. 7, and the ink jet print head receiving member can receive one or more ink jet print heads. The selected ink jet print head can be controlled to complete the printing task by selecting a plurality of ink jet print heads disposed on the ink jet print head receiving member.
According to the ink-jet printing equipment for realizing the ink-jet printing method, the controller is used for controlling the ink-jet printing head on the ink-jet printing head bearing part to complete the printing task according to the ink-jet printing method, the control process is simpler, the ink-jet printing head bearing part used for bearing the ink-jet printing heads can simultaneously bear the ink-jet printing heads, one or more ink-jet printing heads on the ink-jet printing head bearing part can be selected to complete the printing process, and the use is more convenient.
As shown in fig. 8, an inkjet printing apparatus includes:
the information acquisition module 100 is used for acquiring the printing task and the parameter information of each currently available inkjet printing head.
And the ink jet print head selection module 200 is used for selecting the ink jet print heads according to the acquired printing tasks and the parameter information of each currently available ink jet print head.
And a printing control module 300 for controlling the selected inkjet print head to perform a printing job.
In one embodiment, the inkjet printing apparatus provided herein may be implemented in the form of a computer program that is executable on a computer device. The memory of the computer device may store therein various program modules constituting the inkjet printing apparatus, such as the information acquisition module 100, the inkjet printhead selection module 200, and the print control module 300 shown in fig. 8. The computer program constituted by the respective program modules causes the processor to execute the steps in the inkjet printing method of the respective embodiments of the present application described in the present specification.
For example, the computer device may perform step S100 by the information acquisition module 100 in the inkjet printing apparatus as shown in fig. 8. The computer device may perform step S200 through the specification determining module 200. The computer device may perform step S300 through the number confirmation module 300.
In one embodiment, the print job includes job parameters and a preset print time limit, and the inkjet print head selection module 200 is further configured to compare and analyze parameter information of each currently available inkjet print head, obtain a comparison result, and select the inkjet print head based on the job parameters, the preset print time limit, and the comparison result.
In one embodiment, the parameter information of each inkjet print head is different, and the inkjet print head selection module 200 is further configured to prioritize the inkjet print heads and determine the inkjet print heads to be preferentially used by comparing and analyzing the nozzle parameters in the parameter information;
in one embodiment, the inkjet printhead selection module 200 is further configured to prioritize the inkjet printheads by comparing the print parameters in the analysis parameter information and determine the inkjet printheads to be preferentially used.
In one embodiment, the inkjet print head selection module 200 is further configured to perform nozzle parameter prioritization on the inkjet print heads by comparing and analyzing nozzle parameters in the parameter information, determine an inkjet print head with the optimal nozzle parameters, perform printing parameter prioritization on the inkjet print heads by comparing and analyzing printing parameters in the parameter information of the inkjet print heads with the optimal nozzle parameters when a plurality of inkjet print heads with the optimal nozzle parameters exist, and determine an inkjet print head with the optimal printing parameters in the inkjet print head with the optimal nozzle parameters.
In one embodiment, the parameter information includes a printing speed of the inkjet print heads, and the inkjet print head selection module 200 is further configured to sort currently available inkjet print heads according to the printing speed to obtain an inkjet print head queue, and obtain a time required for each inkjet print head of the inkjet print head queue to execute a printing task based on the task parameter and the printing speed to obtain a printing time set, where the printing time includes a shortest printing time; acquiring the ink jet printing heads corresponding to the shortest printing time and the number of the ink jet printing heads; and when the product of the shortest printing time and the number of the ink jet printing heads is greater than or equal to the preset printing limiting time, selecting the ink jet printing head corresponding to the shortest printing time based on the preset printing limiting time.
As shown in fig. 9, in one embodiment, the inkjet printing apparatus further includes:
the adjusting module 400 is configured to, when a task parameter in a print task is updated, obtain a comparison result of time required for the current inkjet print head to complete the current print task and update the print task by analyzing the updated task parameter; if the time required for completing the printing task is less than the time required for completing the current printing task, the current ink-jet printing head is used for completing the printing task; and if the time required for completing the printing task is longer than the time required for completing the current printing task, adjusting the number of the current ink-jet printing heads according to the time required for completing the printing task and the printing limiting time, and completing the printing task.
In one embodiment, the adjusting module 400 is further configured to, when one printing parameter of the inkjet print head is updated, obtain a comparison result between the current inkjet print head and the time required for the updated inkjet print head to complete the current printing task through analysis of the updated printing parameter; if the time required for updating the ink-jet printing heads is less than the time required for the current ink-jet printing heads, the current printing task is completed by using the updated ink-jet printing heads with the same number as the current ink-jet printing heads; if the time required for updating the ink-jet printing heads is longer than the time required for the current ink-jet printing heads, the number of the updated ink-jet printing heads is adjusted according to the time required for updating the ink-jet printing heads and the printing limit time, and the current printing task is completed.
In one embodiment, the adjusting module 400 is further configured to analyze the updated print parameters and the updated print job when a print parameter of the inkjet print head and a job parameter of the print job are updated simultaneously; judging the influence proportion of the updated printing parameters and the updated printing tasks on the required printing time according to the analysis result; and adjusting the required ink jet printing head according to the updating data with larger influence on the required printing time, so as to finish the updating printing task.
The existing ink-jet printing method does not meet the requirement of manufacturing OLED products by large-size glass substrates, the selective function of the ink-jet printing head is optimized in the new ink-jet printing method, and the using function of a plurality of ink-jet printing heads is strengthened. Under a new style, aiming at the ink-jet printing process of the large-size glass substrate, a plurality of ink-jet printing heads can be adopted to carry out the ink-jet process, so that the problem that the single-layer material ink-jet process of a single ink-jet printing head is too long is solved. In the prior art, because the time for waiting for complete printing is too long, the drying degrees of ink materials are different, and a single ink-jet printing head causes the phenomenon of uneven film quality of a formed film, the novel ink-jet printing method supports a plurality of ink-jet printing heads to be used simultaneously, optimizes the selective function of the ink-jet printing head, can adopt the scheme of optimally using the number of the ink-jet printing heads aiming at different sizes of glass substrates and different pixel designs, and simultaneously avoids the problem of limitation caused by the use of the single ink-jet printing head.
A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the ink jet printing method when executing the program.
The computer device comprises a processor, a memory, a network interface, an input device and a display screen which are connected through a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may also store a computer program that, when executed by the processor, causes the processor to implement the inkjet printing method. The internal memory may also have stored therein a computer program that, when executed by the processor, causes the processor to perform an inkjet printing method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, carries out the steps of the inkjet printing method.
It will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program to instruct associated hardware, and the program of the inkjet printing method may be stored in a non-volatile computer readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of inkjet printing comprising the steps of:
acquiring a printing task and parameter information of each currently available ink jet printing head, wherein the printing task comprises task parameters and preset printing limited time;
selecting the ink-jet printing heads according to the acquired printing tasks and the currently available parameter information of each ink-jet printing head;
controlling the selected inkjet print head to perform the print job;
the selecting inkjet print heads according to the acquired print jobs and the parameter information of each inkjet print head currently available comprises:
comparing and analyzing the currently available parameter information of each ink jet printing head to obtain a comparison result;
and selecting the ink-jet printing head based on the task parameter, the preset printing limit time and the comparison result.
2. The method of inkjet printing according to claim 1 wherein the parameter information of each inkjet print head is different, and the step of comparing and analyzing the currently available parameter information of each inkjet print head to obtain the comparison result comprises:
the nozzle parameters in the parameter information are compared and analyzed, the priority ranking is carried out on the ink-jet printing heads, and the ink-jet printing heads which are used preferentially are determined;
or, through comparing and analyzing the printing parameters in the parameter information, the priority of the ink-jet printing heads is sequenced, and the ink-jet printing heads used preferentially are determined;
or comparing and analyzing nozzle parameters in the parameter information, performing priority ranking on the inkjet printing heads according to the nozzle parameters, determining the inkjet printing heads with the optimal nozzle parameters, comparing and analyzing printing parameters in the parameter information of the inkjet printing heads with the optimal nozzle parameters when a plurality of inkjet printing heads with the optimal nozzle parameters exist, performing priority ranking on the inkjet printing heads with the optimal nozzle parameters according to the printing parameters, and determining the inkjet printing heads with the optimal printing parameters in the inkjet printing heads with the optimal nozzle parameters.
3. The inkjet printing method according to claim 1, wherein the parameter information includes a printing speed of the inkjet print heads, and the step of comparing and analyzing the currently available parameter information of each inkjet print head to obtain the comparison result includes:
sorting currently available ink jet printing heads according to the printing speed to obtain an ink jet printing head queue;
the step of selecting an inkjet print head based on the job parameter, a preset print definition time and the comparison result comprises:
acquiring the time required by each ink jet printing head of the ink jet printing head queue to execute the printing task based on the task parameters and the printing speed to obtain a printing time set, wherein the printing time comprises the shortest printing time;
acquiring the ink jet printing heads corresponding to the shortest printing time and the number of the ink jet printing heads;
and when the product of the shortest printing time and the number of the ink jet printing heads is greater than or equal to the preset printing limit time, selecting the ink jet printing head corresponding to the shortest printing time based on the preset printing limit time.
4. The method of inkjet printing according to claim 1 wherein after the step of controlling the selected inkjet printhead to perform the print job, further comprising:
when one task parameter in the printing tasks is updated, analyzing the updated task parameter to obtain a comparison result of the time required by the current ink-jet printing head to finish the current printing task and the time required by updating the printing task;
if the time required for completing the updated printing task is less than the time required for completing the current printing task, the current ink-jet printing head is used for completing the updated printing task;
and if the time required for completing the updated printing task is longer than the time required for completing the current printing task, adjusting the number of the current ink-jet printing heads according to the time required for completing the updated printing task and the printing limit time, and completing the updated printing task.
5. The method of inkjet printing according to claim 1 wherein the step of controlling the selected inkjet printhead to perform the print job is followed by further comprising:
when one printing parameter of the ink-jet printing head is updated, a comparison result of the time required for completing the current printing task between the current ink-jet printing head and the updated ink-jet printing head is obtained through analysis of the updated printing parameter;
if the time required for updating the ink-jet printing heads is less than the time required for the current ink-jet printing heads, the current printing task is finished by using the updated ink-jet printing heads with the same number as the current ink-jet printing heads;
and if the time required for updating the ink-jet printing heads is longer than the time required for the current ink-jet printing heads, adjusting the number of the updated ink-jet printing heads according to the time required for finishing updating the ink-jet printing heads and the printing limit time, and finishing the current printing task.
6. The method of inkjet printing according to claim 1 wherein the step of controlling the selected inkjet printhead to perform the print job is followed by further comprising:
when one printing parameter of the ink-jet printing head and one task parameter of the printing task are updated simultaneously, analyzing the updated printing parameter and the updated printing task respectively;
judging the influence proportion of the updated printing parameters and the updated printing tasks on the required printing time according to the analysis result;
and adjusting the required ink jet printing head according to the updated data with the larger influence on the required printing time, so as to finish the updated printing task.
7. An ink jet printing apparatus comprising a controller and an ink jet print head receiving member for receiving a plurality of ink jet print heads, said controller being adapted to control the ink jet print heads on said ink jet print head receiving member to perform a print job according to the ink jet printing method as claimed in any one of claims 1 to 6.
8. An inkjet printing apparatus, comprising:
the information acquisition module is used for acquiring a printing task and parameter information of each currently available ink jet printing head, wherein the printing task comprises task parameters and preset printing limited time;
the ink-jet printing head selection module is used for selecting the ink-jet printing heads according to the acquired printing tasks and the currently available parameter information of each ink-jet printing head;
the printing control module is used for controlling the selected ink jet printing head to execute the printing task;
the ink-jet printing head selection module is also used for comparing and analyzing the parameter information of each currently available ink-jet printing head to obtain a comparison result, and selecting the ink-jet printing head based on the task parameter, the preset printing limit time and the comparison result.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the inkjet printing method according to any one of claims 1 to 6 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the steps of the method of inkjet printing according to any one of claims 1 to 6.
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| CN113959350B (en) * | 2021-11-03 | 2023-11-28 | Tcl华星光电技术有限公司 | Ink jet printing detection system and detection method |
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