CN114211878A - Detection method of ink-jet printing ink, storage medium and equipment - Google Patents
Detection method of ink-jet printing ink, storage medium and equipment Download PDFInfo
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- CN114211878A CN114211878A CN202111521918.7A CN202111521918A CN114211878A CN 114211878 A CN114211878 A CN 114211878A CN 202111521918 A CN202111521918 A CN 202111521918A CN 114211878 A CN114211878 A CN 114211878A
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- 238000007641 inkjet printing Methods 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 title claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 17
- 238000004590 computer program Methods 0.000 claims description 10
- 238000010998 test method Methods 0.000 claims 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000012216 screening Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
- G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Geometry (AREA)
- Coating Apparatus (AREA)
- Ink Jet (AREA)
Abstract
The embodiment of the application discloses a detection method of ink-jet printing ink, a storage medium and equipment, wherein the detection method of the ink-jet printing ink comprises the following steps: presetting a standard pattern, wherein the standard pattern is an ideal pattern formed by dropping ink on a test substrate at a first preset position; controlling a nozzle above the test substrate to be opened, wherein the nozzle is correspondingly arranged at the first preset position; shooting an ink droplet pattern of the ink droplet in the nozzle, which is dripped on the test substrate, through a camera module; and comparing the ink drop patterns with the standard patterns, and determining whether the area difference and the position offset of each ink drop pattern and the standard patterns are both smaller than a preset threshold value, if so, determining that the nozzle corresponding to the ink drop pattern is qualified, and if not, determining that the nozzle corresponding to the ink drop pattern is unqualified.
Description
Technical Field
The application relates to the field of ink-jet testing, in particular to a detection method, a storage medium and equipment of ink-jet printing ink.
Background
The OLED inkjet printing technology is an emerging OLED manufacturing technology, and mainly melts an OLED organic material using a solvent, and then directly prints the material on a substrate surface by using an inkjet printing head and an inkjet printing device to form R (red), G (green), and B (blue) organic light emitting layers. The ink solution for the ink-jet printing OLED display screen mainly comprises an electroluminescent material, a solvent and the like, the rheological property (viscosity, surface tension and shearing rate) of the ink solution needs to meet the requirement of ink-jet printing equipment, and stable liquid drops can be formed, wherein the liquid drops have no satellite points, good repeatability, accurate positioning and the like; the solvent cannot be volatilized too quickly to prevent dried solutes from clogging the print head and causing print failure.
In addition to OLED inkjet printing, in any other field of inkjet printing process, it is often necessary to check and screen the ink ejection status of each orifice by ink drop detection, including the volume, velocity and offset angle of the ink drop. At present, in common visual ink drop observation, batch detection of multiple jet orifices is slow, the offset of ink drops on a two-dimensional plane can only be observed, and laser ink drop observation equipment is expensive and has the service life limitation of a laser system.
Disclosure of Invention
The embodiment of the application provides a detection method, a storage medium and equipment for ink-jet printing ink, which can solve the technical problem that the detection efficiency of the ink-jet printing ink in the prior art is too low.
The embodiment of the application provides a detection method of ink-jet printing ink, which comprises the following steps:
presetting a standard pattern, wherein the standard pattern is an ideal pattern formed by dropping ink on a test substrate at a first preset position;
controlling a nozzle above the test substrate to be opened, wherein the nozzle is correspondingly arranged at the first preset position;
shooting an ink droplet pattern of the ink droplet in the nozzle, which is dripped on the test substrate, through a camera module; and comparing the ink drop patterns with the standard patterns, and determining whether the area difference and the position offset of each ink drop pattern and the standard patterns are both smaller than a preset threshold value, if so, determining that the nozzle corresponding to the ink drop pattern is qualified, and if not, determining that the nozzle corresponding to the ink drop pattern is unqualified.
Optionally, in some embodiments of the present application, a side of the test substrate facing the showerhead is a plane, and the plane is horizontally disposed.
Optionally, in some embodiments of the present application, a coordinate system is defined on the plane of the test substrate, the ink droplet pattern corresponds to an actual coordinate on the plane, the standard pattern corresponds to a standard coordinate on the plane, a coordinate difference between the actual coordinate and the standard coordinate is obtained, and an offset of a landing position of the ink droplet is obtained according to the coordinate difference.
Optionally, in some embodiments of the present application, the area of the ink droplet pattern is calculated as an actual area, the area of the standard pattern is calculated as a standard area, and an area difference between the actual area and the standard area is obtained.
Optionally, in some embodiments of the present application, a difference between a volume of ink drops corresponding to the ink drop pattern and a volume of ink drops corresponding to a standard pattern is calculated based on the area difference.
Optionally, in some embodiments of the present application, the standard pattern is an ideal pattern that ink shot by the camera module at the second preset position drops on the test substrate at the first preset position.
Optionally, in some embodiments of the present application, the first preset position and the second preset position have the same height.
Optionally, in some embodiments of the present application, the camera module and the nozzle are integrally disposed on the same nozzle module.
Accordingly, embodiments of the present application further provide a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the method for detecting inkjet printing ink when executing the computer program.
Accordingly, embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the method for detecting ink-jet printing ink.
The beneficial effects of the embodiment of the application lie in that, a standard pattern is predefined by the detection method, the storage medium and the equipment of the ink-jet printing ink of the embodiment of the application, compare with the actual ink drop pattern of the camera shooting nozzle dropping on the test substrate, the offset of the nozzle is calculated by calculating the position offset of the ink drop pattern and the standard pattern, the volume value of the ink drop is calculated by calculating the area difference of the ink drop pattern and the standard pattern, thereby calculating the opening size of the nozzle, being beneficial to quickly screening out the nozzles which do not meet the requirements, and simultaneously, the corresponding nozzles can be adjusted according to the calculated values, so that the nozzles meet the requirements.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a method of detecting ink for ink jet printing provided by an embodiment of the present application;
FIG. 2 is a plan view of a standard pattern A provided in an embodiment of the present application;
FIG. 3 is a plan view of a standard pattern B provided in an embodiment of the present application;
fig. 4 is a schematic diagram of ink drop dropping after a nozzle switch is turned on according to an embodiment of the present application.
Description of reference numerals:
a test substrate 1; a plane 11; a nozzle 2; and a camera module 3.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
Examples
As shown in fig. 1, in the embodiment, the invention provides a method for detecting inkjet printing ink, which can detect a plurality of nozzles in a large batch, is fast, effective and low in cost, and includes the following specific steps:
s1) as shown in fig. 2, a standard pattern a, which is an ideal pattern of ink droplets landed on the test substrate 1 at the first predetermined position, is preset.
S2) a plurality of nozzles 2 are provided above the test substrate 1, the nozzles 2 being disposed at the first preset positions so that ink droplets in the nozzles 2 can be dropped at the first preset positions when the switches of the nozzles 2 are turned on.
S3) as shown in fig. 3 and 4, open nozzle 2 switch, in this embodiment, test substrate 1 includes a plane 11, and on the horizontal plane was located to plane 11, the ink droplet drips and forms ink droplet pattern B on plane 11, adopts the module 3 of making a video recording to shoot ink droplet pattern B that the ink droplet drips and falls on plane 11, and the module 3 of making a video recording is located first default position, the module 3 of making a video recording and nozzle 2 integration set up on same shower nozzle module, in other preferred embodiments of this application, the module 3 of making a video recording is located second default position, standard pattern a is equivalent to the ink droplet that the module 3 of making a video recording shot at second default position and is in first default position drips the ideal pattern on test substrate 1.
S4) comparing the ink droplet pattern B with the standard pattern a, and determining whether each ink droplet pattern B completely coincides with the standard pattern a, where "coincidence" in this embodiment is comparing the ink droplet pattern B with the standard pattern a, and determining whether an area difference and a position offset between each ink droplet pattern B and the standard pattern a are both smaller than a preset threshold, where the preset threshold is a maximum error value within an artificially defined allowable range, if so, the nozzle 2 corresponding to the ink droplet pattern B is qualified, and if not, the nozzle 2 corresponding to the ink droplet pattern B is unqualified, and the nozzle 2 corresponding to the ink droplet pattern B is closed or adjusted, thereby completing good screening of multiple nozzles.
The three most important parameters of ink-jet printed ink droplets are volume, velocity and angle, the volume being reflected by the spread area of the ink droplets on the test substrate 1, and the velocity and angle being reflected by the offset of the landed dots. If the specific size of the parameter is not required, the nozzle 2 can be screened directly through the ink drop pattern area and the drop point offset statistical chart, and if the specific ink drop volume of the parameter needs to be known, calibration can be needed.
Specifically, a coordinate system is defined on the plane 11, the standard pattern a corresponds to a standard coordinate a on the plane 11, the ink droplet pattern B corresponds to an actual coordinate B on the plane 11, a coordinate difference between the standard coordinate a and the actual coordinate B is obtained, and the offset of the ink droplet landing position corresponding to the ink droplet pattern B can be obtained according to the coordinate difference. Thereby, the offset amount of the nozzle 2 corresponding to the ink droplet pattern B is estimated.
Since the standard pattern a and the ink droplet pattern B are both patterns formed by dropping ink on the test substrate at the first preset position, the volume difference of the ink droplet corresponding to the ink droplet pattern B relative to the ink droplet corresponding to the standard pattern can be calculated by calculating the area difference of the standard pattern a and the ink droplet pattern B, and thus the opening size of the nozzle 2 corresponding to the ink droplet pattern B is calculated.
In an embodiment of the present application, there is also provided a computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, realizes the steps of the method for detecting inkjet printing ink as described above.
The computer storage medium, and the computer program stored therein, implement the detection method including the inkjet printing ink in the above-described embodiments, so that the coordinate difference between the quasi-coordinate a and the actual coordinate b can be calculated and obtained by detecting the coordinates of the actual measurement position of the landing of the ink droplet to determine the offset of the landing position of the ink droplet.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. 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 (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The beneficial effects of the embodiment of the application lie in that, a standard pattern is predefined by the detection method, the storage medium and the equipment of the ink-jet printing ink of the embodiment of the application, compare with the actual ink drop pattern of the camera shooting nozzle dropping on the test substrate, the offset of the nozzle is calculated by calculating the position offset of the ink drop pattern and the standard pattern, the volume value of the ink drop is calculated by calculating the area difference of the ink drop pattern and the standard pattern, thereby calculating the opening size of the nozzle, being beneficial to quickly screening out the nozzles which do not meet the requirements, and simultaneously, the corresponding nozzles can be adjusted according to the calculated values, so that the nozzles meet the requirements.
The above detailed description is provided for the detection method, the storage medium and the device of the inkjet printing ink provided in the embodiments of the present application, and the principles and embodiments of the present application are explained in detail herein by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core ideas of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A method of detecting ink for ink jet printing, comprising the steps of:
presetting a standard pattern, wherein the standard pattern is an ideal pattern formed by dropping ink on a test substrate at a first preset position;
controlling a nozzle above the test substrate to be opened, wherein the nozzle is correspondingly arranged at the first preset position;
shooting an ink droplet pattern of the ink droplet in the nozzle, which is dripped on the test substrate, through a camera module;
and comparing the ink drop patterns with the standard patterns, and determining whether the area difference and the position offset of each ink drop pattern and the standard patterns are both smaller than a preset threshold value, if so, determining that the nozzle corresponding to the ink drop pattern is qualified, and if not, determining that the nozzle corresponding to the ink drop pattern is unqualified.
2. The method of claim 1, wherein a side of the test substrate facing the nozzles is a flat surface, the flat surface being disposed horizontally.
3. The method of testing an ink jet printing ink of claim 2,
defining a coordinate system on the plane of the test substrate, wherein the ink drop pattern corresponds to an actual coordinate on the plane, the standard pattern corresponds to a standard coordinate on the plane, acquiring a coordinate difference value between the actual coordinate and the standard coordinate, and acquiring the offset of the ink drop landing position according to the coordinate difference value.
4. The method of testing an ink jet printing ink of claim 1,
and calculating the area of the ink drop pattern to be an actual area, calculating the area of the standard pattern to be a standard area, and obtaining the area difference value between the actual area and the standard area.
5. The method of detecting ink jet printing ink of claim 4,
and calculating the difference value of the ink drop volume corresponding to the ink drop pattern and the ink drop volume corresponding to the standard pattern based on the area difference value.
6. The method of testing an ink jet printing ink of claim 1,
the standard pattern is an ideal pattern of ink shot by the camera module at the second preset position and dropped on the test substrate at the first preset position.
7. The method of detecting ink jet printing ink of claim 6,
the first preset position and the second preset position are consistent in height.
8. The method of testing an ink jet printing ink of claim 1,
the camera module and the nozzle are integrally arranged on the same sprayer module.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the computer program performs the steps of the method of detecting ink jet printing ink of any one of claims 1 to 8.
10. 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 method of detection of inkjet printing ink according to any one of claims 1 to 8.
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|---|---|---|---|
| CN202111521918.7A CN114211878B (en) | 2021-12-13 | 2021-12-13 | Detection method, storage medium and equipment for ink-jet printing ink |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111521918.7A CN114211878B (en) | 2021-12-13 | 2021-12-13 | Detection method, storage medium and equipment for ink-jet printing ink |
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| CN114211878A true CN114211878A (en) | 2022-03-22 |
| CN114211878B CN114211878B (en) | 2023-10-17 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115246266A (en) * | 2022-07-26 | 2022-10-28 | 合肥京东方卓印科技有限公司 | Printing control method, printing control device, electronic equipment and computer readable storage medium |
| CN115312570A (en) * | 2022-07-25 | 2022-11-08 | 深圳市华星光电半导体显示技术有限公司 | Organic light emitting diode substrate, preparation method thereof, and display device |
| CN115923350A (en) * | 2022-11-30 | 2023-04-07 | 湖北金禄科技有限公司 | Printing and manufacturing method of circuit board and solder resist ink |
| CN116061583A (en) * | 2023-02-03 | 2023-05-05 | 季华实验室 | OLED (organic light emitting diode) ink-jet printing data processing and controlling method |
| CN117002150A (en) * | 2022-04-18 | 2023-11-07 | 深圳市汉森软件股份有限公司 | Inkjet printer ink drop point calibration method, device, control panel and equipment |
| CN117268738A (en) * | 2023-11-20 | 2023-12-22 | 季华实验室 | Nozzle detection method, device, equipment and storage medium |
| CN118061684A (en) * | 2024-03-15 | 2024-05-24 | 广州市科帕电子科技有限公司 | Automatic jet printing control method and device applied to CIJ jet printing and CIJ jet printing equipment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117002150A (en) * | 2022-04-18 | 2023-11-07 | 深圳市汉森软件股份有限公司 | Inkjet printer ink drop point calibration method, device, control panel and equipment |
| CN115312570A (en) * | 2022-07-25 | 2022-11-08 | 深圳市华星光电半导体显示技术有限公司 | Organic light emitting diode substrate, preparation method thereof, and display device |
| CN115246266A (en) * | 2022-07-26 | 2022-10-28 | 合肥京东方卓印科技有限公司 | Printing control method, printing control device, electronic equipment and computer readable storage medium |
| CN115246266B (en) * | 2022-07-26 | 2023-10-20 | 合肥京东方卓印科技有限公司 | Printing control method, printing control device, electronic equipment and computer readable storage medium |
| CN115923350A (en) * | 2022-11-30 | 2023-04-07 | 湖北金禄科技有限公司 | Printing and manufacturing method of circuit board and solder resist ink |
| CN116061583A (en) * | 2023-02-03 | 2023-05-05 | 季华实验室 | OLED (organic light emitting diode) ink-jet printing data processing and controlling method |
| WO2024159617A1 (en) * | 2023-02-03 | 2024-08-08 | 季华实验室 | Oled inkjet printing data processing and control method |
| CN117268738A (en) * | 2023-11-20 | 2023-12-22 | 季华实验室 | Nozzle detection method, device, equipment and storage medium |
| CN117268738B (en) * | 2023-11-20 | 2024-03-12 | 季华实验室 | Nozzle detection method, device, equipment and storage medium |
| CN118061684A (en) * | 2024-03-15 | 2024-05-24 | 广州市科帕电子科技有限公司 | Automatic jet printing control method and device applied to CIJ jet printing and CIJ jet printing equipment |
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